EP1862239A1 - Spray head for coating a casting mould with a release agent - Google Patents

Spray head for coating a casting mould with a release agent Download PDF

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Publication number
EP1862239A1
EP1862239A1 EP06011537A EP06011537A EP1862239A1 EP 1862239 A1 EP1862239 A1 EP 1862239A1 EP 06011537 A EP06011537 A EP 06011537A EP 06011537 A EP06011537 A EP 06011537A EP 1862239 A1 EP1862239 A1 EP 1862239A1
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EP
European Patent Office
Prior art keywords
nozzle
release agent
nozzle module
piston
module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP06011537A
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German (de)
French (fr)
Other versions
EP1862239B1 (en
Inventor
Christoph Böhmer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DIPL.-ING. SWEN SCHROEDER ENGINEERING GMBH
ERICH F. BAURMANN PNEUMATIK HYDRAULIK INDUSTRIEAUS
Original Assignee
Baurmann Erich F
Dipl-Ing S Schroder Engineering GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Baurmann Erich F, Dipl-Ing S Schroder Engineering GmbH filed Critical Baurmann Erich F
Priority to ES06011537.5T priority Critical patent/ES2593037T3/en
Priority to DE202006020839U priority patent/DE202006020839U1/en
Priority to EP10176909A priority patent/EP2272606A1/en
Priority to EP06011537.5A priority patent/EP1862239B1/en
Publication of EP1862239A1 publication Critical patent/EP1862239A1/en
Application granted granted Critical
Publication of EP1862239B1 publication Critical patent/EP1862239B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/2007—Methods or apparatus for cleaning or lubricating moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
    • B05B1/306—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice the actuating means being a fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/14—Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired places; Arrangements for handling or replacing damaged parts
    • B05B15/18—Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired places; Arrangements for handling or replacing damaged parts for improving resistance to wear, e.g. inserts or coatings; for indicating wear; for handling or replacing worn parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0807—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
    • B05B7/0815—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
    • B05B7/1254—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated
    • B05B7/1263—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated pneumatically actuated

Definitions

  • the present invention relates to a nozzle head according to the preamble of claim 1, a spray head with at least two nozzle heads according to the invention, a release agent for application and distribution on pressure or injection molds, according to the preamble of claim 7 and a method for applying and distributing one of the release agent according to the invention by means of a nozzle or spray head according to the invention.
  • Nozzle heads of the above type are known and, for example, in the DE 32 49 545 C2 described.
  • the nozzle heads described in this document consist of a housing jacket, in which a processing space is formed, which communicates via a one-piece executed with the housing shell nozzle-like approach with a funnel-shaped opening.
  • a connection for the release agent to be sprayed is provided, which communicates with the processing space via an inlet opening.
  • a pneumatically actuable piston is provided, which protrudes with its side facing the funnel-shaped opening in a closed position in the approach, and closes the inlet opening for the release agent.
  • a disadvantage of this arrangement is that when promoting release agents, which may contain, for example, a combination of liquids and solids, due to the abrasive properties promoted by the solids rapid leaching of formed in the housing shell, nozzle-shaped approach can be favored. By the abrasion and the increased tendency to corrosion of the material of the approach, the geometry of the nozzle is changed, which changes a change in the spray characteristics of the nozzle head and thus shortens the life of the component.
  • the approach for the promotion of liquids containing solids only limited suitability, since the approach can quickly clog with corresponding solids.
  • the approach In order to continue operating the nozzle head, the approach must first be cleaned, which greatly prolongs the cycle times for the production of series of die cast parts due to appropriate maintenance measures.
  • the release agent to be applied to the metallic permanent mold has the task of being able to more easily demould components and to protect the die from thermal or mechanical influences.
  • the release agents known in the art wet the surfaces of the die casting molds only in a range between about 150 ° C and about 250 ° C. During the removal of die-cast components, the die casting molds have a temperature of approx. 350 ° C. At these temperatures, there is a risk that the release agent evaporates. Therefore, the die casting molds must first be cooled to 150 ° C to 250 ° C. For cooling, it is known in the prior art to apply a mixture of release agent and water to the die to cool the temperature of the die to the appropriate value of 150 ° C to 250 ° C for wetting.
  • Another disadvantage of the necessary cooling is, on the one hand, that a relatively large temperature gradient arises on the walls of the die, which can lead to increased residual stresses in the material. In addition, it then becomes necessary to reheat the die to a processing temperature, which is associated with an increased energy requirement.
  • Micro-spraying in the sense of the invention means that the total amount of the release agent to be sprayed compared to the prior art is reduced by a factor of up to 100, since the release agent can be sprayed undiluted or virtually undiluted onto the die casting mold.
  • a nozzle head the nozzle module is releasably secured in the housing shell.
  • the invention is based on the one hand on the basic idea that the nozzle module can be easily assembled or disassembled in the nozzle head, for example to replace it, if the nozzle module is washed out by the promotion of a release agent after some time and thereby the spray properties of the nozzle head have changed adversely.
  • An advantageous embodiment of the invention provides to control the delivery rate of the release agent by a suitable choice of the geometry of the nozzle module.
  • the pressure with which the release agent is introduced into the processing space can be used to control the flow rate per time. However, it is also possible to convey the release agent without pressure.
  • the promotion of the release agent can be done for example by the piston movement. If a larger delivery rate of the release agent of the funnel-shaped opening to be supplied, the diameter of the nozzle module or the injection volume enclosed by the nozzle module can be made larger. If a smaller flow rate per die casting cycle is subsequently to be fed to the funnel-shaped opening, the nozzle module can be replaced by another nozzle module, which surrounds a smaller injection volume or has a smaller exit diameter.
  • the diameter of the nozzle is advantageously between 0.1 and 5mm, more preferably between 0.5 and 3mm, and most preferably at 1.5mm.
  • the process pressure of the compressed air for conveying the release agent is between 0.1 and 25 bar, preferably 0.1 to 16 bar, more preferably 0.2 to 3 bar and in particular 0.5 bar.
  • the nozzle module is formed adaptable by selecting a suitable material to the release agent to be supplied.
  • the nozzle module can be easily replaced if a release agent is to be promoted, which contains a component which would favor, for example, the corrosion of the material of a nozzle body but has no effect on the material behavior of a nozzle head with a different material composition.
  • the material of the nozzle module is advantageously made of a wear-resistant material selected from a group comprising a ceramic, a stainless steel or a hardened steel, so that release agent can be used, which consists of a mixture of liquid and solids, by accelerating the Solids may cause abrasions if the materials are too soft. Because of the wear-resistant material, washing out by abrasion on the nozzle module is reduced or completely prevented by the acceleration of the solids.
  • the nozzle module is made entirely of the wear-resistant material. Rather, it is also possible to provide only the surface of the nozzle module facing the piston with a hardened surface or a coating. Further, it is possible to subject the material to various heat treatment known in the art in order to further increase its hardness.
  • the material from which the nozzle module is made, adversely affected can be prevented by the piston-facing surface of the nozzle module with a corresponding protective coating such as a TiN coating is provided.
  • the nozzle heads according to the invention in the spray head on a common manifold block can be mounted such that the nozzle heads via common ports each release agent or compressed air are supplied.
  • the present invention also relates to a release agent containing a layer-forming component having a melting point of ⁇ 700 ° C and a nonionic emulsifier component. It has been found that the advantages of the invention can be achieved in a simple manner by such a release agent.
  • the layer-forming component has a melting point of ⁇ 1000 ° C, more preferably ⁇ 1100 ° C, more preferably ⁇ 1200 ° C, further preferably ⁇ 1300 ° C, and most preferably ⁇ 1400 ° C
  • a "layer-forming component" in the sense of the present invention comprises or designates in particular a component which is able to build up a layer on a die-casting mold by spraying by means of a nozzle head according to the invention in the field of application of the relevant invention.
  • a preferred embodiment of the present invention relates to a water-based release agent.
  • a preferred embodiment of the present invention relates to a release agent whose film-forming component has lubricant properties.
  • “Lubricant properties” in the sense of the present invention comprises or designates in particular the property of slidably sliding two solids separated from the release agent (mold / mold wall casting) without the release agent peeling off or with minimal loss of release agent.
  • such a release agent has the property that it forms a layer on a die in the present method, which has the task to protect the pressure mold during the die casting process and to facilitate removal of the component from the component, and at the same time components of the nozzle head according to the invention during the spraying of the release agent to lubricate.
  • the layer-forming component preferably has a wetting angle of the component to form or cast to ⁇ 0- ⁇ 180 °, more preferably ⁇ 90- ⁇ 165 °, more preferably from ⁇ 90- ⁇ 135 °.
  • a preferred embodiment of the present invention relates to a release agent wherein the film-forming component is selected from the group consisting of boron nitride, aluminum nitride, graphite, oxides and mixtures thereof.
  • a preferred embodiment of the present invention relates to a release agent wherein the nonionic emulsifier component has a temperature stability of at least 500 ° C.
  • Temporal stability in the context of the present invention is understood in particular to mean that the nonionic emulsifier component undergoes no or substantially no chemical reactions, be it decomposition reactions or reactions with further components of the release agent or the reaction vessel, which lead to non-evaporable reaction products ,
  • a temperature stability of at least 500 ° C has proven to be particularly advantageous for most applications, as this way the process can be carried out easily and residue-free.
  • the nonionic emulsifier component particularly preferably has a temperature stability of at least 500 ° C., more preferably 600 ° C., and most preferably 700 ° C.
  • residue-free is meant, in particular, that after evaporation of the nonionic emulsifier component, the residue is ⁇ 0.1% by weight, preferably ⁇ 0.05% by weight of the originally used nonionic emulsifier component.
  • a preferred embodiment of the present invention relates to a release agent wherein the nonionic emulsifier component has a boiling point of ⁇ 300 ° and ⁇ 700 °.
  • a boiling point within these temperature limits makes possible the use of the release agent in a variety of applications, especially in applications that run at a temperature of 400 ° -500 °.
  • the nonionic emulsifier component has a boiling point of ⁇ 350 ° and 650 ° ⁇ , more preferably ⁇ 400 ° and ⁇ 600 °, and most preferably ⁇ 450 ° and ⁇ 550 °.
  • a preferred embodiment of the present invention relates to a release agent wherein the nonionic emulsifier component contains a siloxane component.
  • siloxane component is meant, in particular, any chemical compound which contains monomers of the moiety -O-SiR 1 R 2 -O-, where R 1 and R 2 independently of one another may be hydrogen or organic radicals.
  • a preferred embodiment of the present invention relates to a release agent wherein the nonionic emulsifier component is selected from the group comprising polyalkylsiloxanes, alkylarylsiloxanes and mixtures thereof.
  • alkyl is understood to mean, in particular, C 1 -C 8 -alkyls (linear and / or branched).
  • aryl is understood in particular to mean aromatic or homoaromatic aryl compounds having a molecular weight of up to 300 Da.
  • a preferred embodiment of the present invention relates to a release agent additionally containing at least one dispersant surfactant component.
  • a "dispersant mediator component” is in particular any compound whose addition (in a sufficient amount) prevents precipitation of the layer-forming component from the release agent.
  • a preferred embodiment of the present invention relates to a release agent wherein a dispersant component is an organic salt compound.
  • a dispersant component is an organic salt compound.
  • a preferred embodiment of the present invention relates to a release agent wherein the anionic and / or cationic dispersing mediator component is macromolecular. This has the advantage that the dispersing agent component is needed in only small amounts.
  • a preferred embodiment of the present invention relates to a release agent wherein the anionic dispersant component is a carboxyvinyl polymer.
  • a preferred embodiment of the present invention relates to a release agent wherein the cationic dispersant component is a low molecular weight secondary or primary amine.
  • low molecular weight is meant in particular compounds having a molecular weight of 250 Da or less.
  • the cationic dispersing agent component is preferably selected from the group dimethylamine, diethylamine, methylethylamine, ethylamine, isopropylamine, diisopropylamine, ethylamine, methylpropylamine or mixtures thereof.
  • a preferred embodiment of the present invention relates to a release agent, wherein the layer-forming component has a content (in% by weight) of ⁇ 0.02% and ⁇ 5%.
  • the layer-forming component has a content (in% by weight) of ⁇ 0.02% and ⁇ 5%.
  • the layer-forming component preferably has a proportion (in% by weight) of ⁇ 0.05% and ⁇ 2.5%, more preferably ⁇ 0.1% and ⁇ 2%, more preferably ⁇ 0.5% and ⁇ 1.5%. , and most preferably ⁇ 0.75% and ⁇ 1%.
  • a preferred embodiment of the present invention relates to a release agent, wherein the nonionic emulsifier component has a proportion (in% by weight) of ⁇ 1% and ⁇ 25%. This can also be achieved a good training of the release layer with low material usage.
  • the nonionic emulsifier component preferably has a proportion (in% by weight) of ⁇ 5% and ⁇ 20%, more preferably ⁇ 8% and ⁇ 15%, and most preferably ⁇ 10% and ⁇ 12.5%.
  • a preferred embodiment of the present invention relates to a release agent wherein the dispersing agent component has a content (% by weight) of ⁇ 0.02% and ⁇ 10%.
  • the proportion refers to the sum of the dispersing agent components (in% by weight).
  • the dispersing agent component preferably has a proportion (in% by weight) of ⁇ 0.1% and ⁇ 5%, more preferably ⁇ 0.25% and ⁇ 2.5%, and most preferably ⁇ 0.5% and ⁇ 1% ,
  • a preferred embodiment of the present invention relates to a release agent, wherein the proportion of the layer-forming component (in% by weight) to dispersant vater component (in% by weight) of ⁇ 0, 1: 1 and ⁇ 10: 1.
  • a preferred embodiment of the present invention relates to a release agent wherein the proportion of the layer-forming component (in% by weight) to nonionic emulsifier component (in% by weight) is ⁇ 0.01: and ⁇ 0.1 :.
  • a preferred embodiment of the present invention relates to a release agent according to any one of the preceding claims, wherein the release agent has a viscosity of ⁇ 2 mm 2 / S at 20 ° C and ⁇ 20 mm 2 / s at 20 ° C.
  • a release agent having such a viscosity can be sprayed well in particular by the nozzle described above and is therefore particularly suitable for most applications of the present invention.
  • the release agent preferably has a viscosity of> 3 mm 2 / s and ⁇ 15 mm 2 / s, more preferably 6 mm 2 / s and ⁇ 13 mm 2 / s, and most preferably 9 mm 2 / s and ⁇ 11 mm 2 / s.
  • a preferred embodiment of the present invention relates to a release agent according to any one of the preceding claims, wherein the release agent has a density of ⁇ 0.9 g / cm 3 and ⁇ 1.1 g / cm 3 .
  • a release agent having such a density can be sprayed well in particular by the nozzle described above and is thus particularly suitable for most applications of the present invention.
  • the release agent has a density of ⁇ 0.95 g / cm 3 and ⁇ 1.05 g / cm 3 , more preferably ⁇ 0.98 g / cm 3 and ⁇ 1.03 g / cm 3 , and most preferably of ⁇ 0.99 g / cm 3 and ⁇ 1.01 g / cm 3 .
  • the present invention also relates to a method for applying and distributing a release agent described above to printing or injection molding using a spray head or nozzle head as described above
  • a preferred embodiment of the present invention relates to a process wherein ⁇ 50 and ⁇ 150 g / cast of release agent are used.
  • a preferred embodiment of the present invention relates to a process wherein compressed air having a pressure of ⁇ 0.1 bar and ⁇ 25 bar, more preferably of ⁇ 1 bar and ⁇ 10 bar, and most preferably of 6 bar is used.
  • a preferred embodiment of the present invention relates to a process wherein the process pressure of the compressed air for conveying the release agent is between ⁇ 0.1 bar and ⁇ 25 bar, more preferably ⁇ 0.1 bar and ⁇ 16 bar, more preferably ⁇ 0.2 bar and ⁇ 3 bar and most preferably of 0.5 bar.
  • Figure 1 shows a cross section through a nozzle head 1 according to the invention for use in a spray head 2 for applying and distributing release agent on pressure or injection molds.
  • the nozzle head 1 has a housing jacket 3, in which a processing space 4 is formed, which has a nozzle module 7 arranged between a funnel-shaped opening 5 and a piston 6.
  • the nozzle module 7 is provided at its end facing the piston 6, an external thread 8, with which it is screwed into the housing shell 3.
  • the piston 6 extends with its the funnel-shaped opening 5 side facing in a closed position into the nozzle module 7 and thereby closes a formed in the housing shell 3, not shown inlet, via which also not shown formed in the housing shell 3 connection with the processing space 4 communicates.
  • a guide bush 9 is arranged in the housing shell 3 in this embodiment.
  • a connection for compressed air in the housing shell 3 is formed, which is connected via a compressed air inlet opening, not shown, with the compressed air space 10a .
  • the piston 6 is returned in this embodiment alone by the spring force of the spring 12 in the closed position by the compressed air supply to the compressed air space 10 a is interrupted.
  • vent opening is formed in the housing shell 3 a communicating with the compressed air space 10 b vent opening so that the air in the compressed air space 10 b existing in the Return of the piston can escape according to the associated volume reduction.
  • the compressed air space 10a, 10b and the processing space 4 are sealed against each other via a sealing means 11, such as an O-ring, so that neither the compressed air for controlling the piston 6 can enter the processing space 4, nor release agent in the compressed air space 10a, 10b .
  • a sealing means 11 such as an O-ring
  • the supply of the release agent to the funnel-shaped opening 5 via the nozzle module 7 can also be carried out continuously without return movement of the piston 6 by the release agent is introduced into the processing chamber 4 pressurized.
  • the piston 6 acts in this case not dosing, but only serves to control the beginning of the supply of the release agent and thus the spraying process and terminates the supply of the release agent at the end of a Sprühzyklusses by a correspondingly initiated return movement by controlling the compressed air supply in the compressed air space 10a, 10b .
  • the delivery rate of the release agent in continuous promotion for example on the one to be selected. Diameter of the nozzle module 7 to control.
  • the nozzle module 7 may be made of a different, adapted to the composition of the release agent material than the remaining components of the nozzle head 1,
  • the nozzle head 1 due to the lower weight and the associated easier handling due to lower inertial forces mainly consist of aluminum and the nozzle module 7, for example, made of a stainless steel, to reduce the tendency to abrasion by the release agent to be promoted on the nozzle module 7 or completely prevent what is necessary if the release agent, for example, solids or other abrasive or corrosive substances.
  • FIG. 2 shows a spray head 2 according to the invention with two nozzle heads 1 mounted on a common distributor block 13.
  • the nozzle heads 1 are mounted in flange construction, which results in a particularly compact design and the arrangement of several nozzle heads 1 made possible at short intervals, so that even die casting molds with more complicated geometries with sufficient release agent can be sprayed uniformly and selectively.

Abstract

The nozzle head for spray head for the application and distribution of releasing agent in die casting- or injection mold, comprises housing shell (3) in which processing chamber (4) is formed, which has a nozzle module (7) arranged between a funnel shaped opening (5) and a piston (6). A connection is formed at the housing shell to supply releasing agent by nozzle module to the funnel shaped opening, and to supply compressed air to the funnel shaped opening. The delivery rate of the releasing agent is varied by geometry of the nozzle module. The nozzle head for spray head for the application and distribution of releasing agent in die casting- or injection mold, comprises housing shell (3) in which processing chamber (4) is formed, which has a nozzle module (7) arranged between a funnel shaped opening (5) and a piston (6). A connection is formed at the housing shell to supply releasing agent by nozzle module to the funnel shaped opening, and to supply compressed air to the funnel shaped opening. The delivery rate of the releasing agent is varied by geometry of the nozzle module. The piston with its side facing the funnel shaped openings projects into the nozzles module in a closed position and locks an inlet opening formed in the housing shell for releasing agent as well as releases the entrance opening into an opened position for the releasing agent. The nozzle module is fastened in the housing shell. The nozzle module is adaptable by choice of a suitable material to a composition of the releasing agent. The surface has hardened surface faced to the piston of the nozzles module. The surface of the nozzle module is provided with a coating. Independent claims are included for: (1) a spray head; (2) a releasing agent; and (3) a method for applying and distributing a releasing agent.

Description

Die vorliegende Erfindung betrifft einen Düsenkopf gemäß dem Oberbegriff des Anspruchs 1, einen Sprühkopf mit mindestens zwei erfindungsgemäßen Düsenköpfen, ein Trennmittel zum Auftragen und Verteilen auf Druck- oder Spritzgussformen, gemäß dem Oberbegriff des Anspruchs 7 sowie ein Verfahren zum Auftragen und Verteilen eine des erfindungsgemäßen Trennmittels mittels eines erfindungsgemäßen Düsen- bzw. Sprühkopfes .The present invention relates to a nozzle head according to the preamble of claim 1, a spray head with at least two nozzle heads according to the invention, a release agent for application and distribution on pressure or injection molds, according to the preamble of claim 7 and a method for applying and distributing one of the release agent according to the invention by means of a nozzle or spray head according to the invention.

Düsenköpfe der obengenannten Art sind bekannt und beispielsweise in der DE 32 49 545 C2 beschrieben. Die in dieser Druckschrift beschriebenen Düsenköpfe bestehen aus einem Gehäusemantel, in dem ein Bearbeitungsraum ausgebildet ist, der über einen einteilig mit dem Gehäusemantel ausgeführten düsenförmigen Ansatz mit einer trichterförmigen Öffnung kommuniziert. Am Düsenkopf ist ein Anschluss für das zu versprühende Trennmittel vorgesehen, der über eine Eintrittsöffnung mit dem Bearbeitungsraum in Verbindung steht. In dem Bearbeitungsraum ist ein druckluftbetätigbarer Kolben vorgesehen, der mit seiner der trichterförmigen Öffnung zugewandten Seite in einer geschlossenen Stellung in den Ansatz hineinragt, und die Eintrittsöffnung für das Trennmittel verschließt.Nozzle heads of the above type are known and, for example, in the DE 32 49 545 C2 described. The nozzle heads described in this document consist of a housing jacket, in which a processing space is formed, which communicates via a one-piece executed with the housing shell nozzle-like approach with a funnel-shaped opening. At the nozzle head, a connection for the release agent to be sprayed is provided, which communicates with the processing space via an inlet opening. In the processing space a pneumatically actuable piston is provided, which protrudes with its side facing the funnel-shaped opening in a closed position in the approach, and closes the inlet opening for the release agent.

Nachteilig an dieser Anordnung ist, dass bei Förderung von Trennmitteln, die beispielsweise eine Kombination aus Flüssigkeiten und Feststoffe enthalten können, aufgrund der durch die Feststoffe geförderten Abrasionseigenschaften ein schnelles Auswaschen des in dem Gehäusemantel ausgebildeten, düsenförmigen Ansatzes begünstigt werden kann. Durch die Abrasion und die damit gesteigerte Neigung zur Korrosion des Werkstoffes des Ansatzes wird die Geometrie der Düse verändert, was eine Veränderung der Sprüheigenschaften des Düsenkopfes verändert und damit die Lebensdauer des Bauteils verkürzt.A disadvantage of this arrangement is that when promoting release agents, which may contain, for example, a combination of liquids and solids, due to the abrasive properties promoted by the solids rapid leaching of formed in the housing shell, nozzle-shaped approach can be favored. By the abrasion and the increased tendency to corrosion of the material of the approach, the geometry of the nozzle is changed, which changes a change in the spray characteristics of the nozzle head and thus shortens the life of the component.

Bei einer negativen Veränderung der Sprüheigenschaften oder sogar einem Versagen des Werkstoffes bei zu geringen Wanddicken an dem Ansatz muss der Gehäusemantel bzw. der Düsenkopf vollständig ausgetauscht werden.In case of a negative change of the spray properties or even a failure of the material with too small wall thicknesses at the approach of the housing shell or the nozzle head must be completely replaced.

Ferner ist der Ansatz für die Förderung von Flüssigkeiten, die Feststoffe enthalten, nur bedingt geeignet, da sich der Ansatz schnell mit entsprechenden Feststoffen zusetzen kann. Um den Düsenkopf weiter betreiben zu können, muss der Ansatz erst gereinigt werden, wodurch die Zykluszeiten für die Herstellung von Serien von Druckgussteilen aufgrund entsprechender Instandhaltungsmaßnahmen stark verlängert werden.Furthermore, the approach for the promotion of liquids containing solids, only limited suitability, since the approach can quickly clog with corresponding solids. In order to continue operating the nozzle head, the approach must first be cleaned, which greatly prolongs the cycle times for the production of series of die cast parts due to appropriate maintenance measures.

Das auf die metallischen Dauerform aufzubringende Trennmittel hat die Aufgabe, Bauteile leichter Entformen zu können und die Druckgussform vor thermischen oder mechanischen Einflüssen zu schützen. Die im Stand der Technik bekannten Trennmittel benetzen die Oberflächen der Druckgussformen lediglich in einem Bereich zwischen ca. 150°C und ca. 250°C . Bei der Entnahmen von Druckgegossenen Bauteilen haben die Druckgussformen eine Temperatur von ca. 350°C. Bei diesen Temperaturen besteht die Gefahr, dass das Trennmittel verdampft. Daher müssen die Druckgussformen zunächst auf 150°C bis 250°C abgekühlt werden. Zur Abkühlung ist im Stand der Technik bekannt, ein Gemisch aus Trennmittel und Wasser auf die Druckgussform aufzubringen, um die Temperatur der Druckgussform auf den für die Benetzung geeigneten Wert von 150 °C bis 250°C abzukühlen. Bei diesem Vorgang wird ein Großteil des aufgebrachten Trennmittel-Wassergemisches verdampft, was mit einem hohen Verbrauch des Trennmittels einhergeht. Wenn die Temperatur der Druckgussform hingegen bei der Abkühlung unter 150°C fällt, wird das Trennmittel durch das darin enthaltene, nicht verdunstete Wasser von den Wänden der zu benetzenden Druckgussform abgewaschen und verbleibt nicht in der Druckgussform.The release agent to be applied to the metallic permanent mold has the task of being able to more easily demould components and to protect the die from thermal or mechanical influences. The release agents known in the art wet the surfaces of the die casting molds only in a range between about 150 ° C and about 250 ° C. During the removal of die-cast components, the die casting molds have a temperature of approx. 350 ° C. At these temperatures, there is a risk that the release agent evaporates. Therefore, the die casting molds must first be cooled to 150 ° C to 250 ° C. For cooling, it is known in the prior art to apply a mixture of release agent and water to the die to cool the temperature of the die to the appropriate value of 150 ° C to 250 ° C for wetting. In this process, a large part of the applied release agent-water mixture is evaporated, which is associated with a high consumption of the release agent. On the other hand, when the die temperature falls below 150 ° C during cooling, the release agent is washed away from the walls of the die to be wetted by the undiluted water contained therein and does not remain in the die.

Ein weiterer Nachteil bei der notwendigen Abkühlung ist zum einen, dass ein relativ großer Temperaturgradient an den Wänden der Druckgussform entsteht, was zu vermehrten Eigenspannungen im Werkstoff führen kann. Außerdem wird es anschließend notwendig, die Druckgussform auf eine Bearbeitungstemperatur wieder aufzuheizen, was mit einem gesteigerten Energiebedarf einhergeht.Another disadvantage of the necessary cooling is, on the one hand, that a relatively large temperature gradient arises on the walls of the die, which can lead to increased residual stresses in the material. In addition, it then becomes necessary to reheat the die to a processing temperature, which is associated with an increased energy requirement.

Es ist daher Aufgabe der vorliegenden Erfindung, einen Düsenkopf bzw. ein Sprühkopf bereitzustellen, der flexible einsetzbar und auch für das Mikrosprühen von Trennmitteln mit unterschiedlichen Zusammensetzungen geeignet ist Mikrosprühen im Sinne der Erfindung bedeutet, dass die Gesamtmenge des zu versprühenden Trennmittels gegenüber dem Stand der Technik um einen Faktor von bis zu 100 verringert ist, da das Trennmittel unverdünnt bzw. nahezu unverdünnt auf die Druckgussform aufgesprüht werden kann.It is therefore an object of the present invention to provide a nozzle head or a spray head which is flexible and also suitable for the micro-spraying of release agents having different compositions. Micro-spraying in the sense of the invention means that the total amount of the release agent to be sprayed compared to the prior art is reduced by a factor of up to 100, since the release agent can be sprayed undiluted or virtually undiluted onto the die casting mold.

Ferner ist es Aufgabe der Erfindung, ein Verfahren bereitzustellen, welches geringere Taktzeiten des Druckgussprozesses ermöglicht und gleichzeitig die Material- Energie- und Entsorgungskosten verringert.It is another object of the invention to provide a method which allows lower cycle times of the die casting process and at the same time reduces the material energy and disposal costs.

Diese Aufgaben werden zum einen durch einen Düsenkopf gelöst, dessen Düsenmodul lösbar in dem Gehäusemantel befestigt ist.These objects are achieved on the one hand by a nozzle head, the nozzle module is releasably secured in the housing shell.

Mit anderen Worten basiert die Erfindung einerseits auf dem Grundgedanken, dass das Düsenmodul auf einfache Weise in dem Düsenkopf montiert bzw. demontiert werden kann, beispielsweise um es auszutauschen, wenn das Düsenmodul durch die Förderung eines Trennmittels nach einiger Zeit ausgewaschen ist und sich dadurch die Sprüheigenschaften des Düsenkopfes nachteilig verändert haben.In other words, the invention is based on the one hand on the basic idea that the nozzle module can be easily assembled or disassembled in the nozzle head, for example to replace it, if the nozzle module is washed out by the promotion of a release agent after some time and thereby the spray properties of the nozzle head have changed adversely.

Eine vorteilhafte Ausgestaltung der Erfindung sieht vor, die Fördermenge des Trennmittels durch eine geeignete Wahl der Geometrie des Düsenmoduls zu steuern. Auch der Druck, mit dem das Trennmittel in den Bearbeitungsraum eingeleitet wird, kann zur Steuerung der Fördermenge pro Zeit genutzt werden. Allerdings ist es auch möglich, das Trennmittel drucklos zu fördern.An advantageous embodiment of the invention provides to control the delivery rate of the release agent by a suitable choice of the geometry of the nozzle module. The pressure with which the release agent is introduced into the processing space, can be used to control the flow rate per time. However, it is also possible to convey the release agent without pressure.

Die Förderung des Trennmittels kann dabei beispielsweise durch die Kolbenbewegung erfolgen. Soll eine größere Fördermenge des Trennmittels der trichterförmigen Öffnung zugeführt werden, kann der Durchmesser des Düsenmoduls bzw. das vom Düsenmodul eingeschlossene Einspritzvolumen größer gewählt werden. Soll anschließend eine geringere Fördermenge pro Druckgusszyklus der trichterförmigen Öffnung zugeführt werden, kann das Düsenmodul durch ein anderes Düsenmodul ersetzt werden, welches ein geringeres Einspritzvolumen umgibt bzw. einen geringeren Austrittsdurchmesser aufweist.The promotion of the release agent can be done for example by the piston movement. If a larger delivery rate of the release agent of the funnel-shaped opening to be supplied, the diameter of the nozzle module or the injection volume enclosed by the nozzle module can be made larger. If a smaller flow rate per die casting cycle is subsequently to be fed to the funnel-shaped opening, the nozzle module can be replaced by another nozzle module, which surrounds a smaller injection volume or has a smaller exit diameter.

Der Durchmesser der Düse liegt vorteilhaft zwischen 0,1 und 5mm, noch bevorzugter zwischen 0,5 und 3mm und am bevorzugten bei 1,5mm.The diameter of the nozzle is advantageously between 0.1 and 5mm, more preferably between 0.5 and 3mm, and most preferably at 1.5mm.

Der Verfahrensdruck der Druckluft zur Förderung des Trennmittels beträgt zwischen 0,1 und 25bar, bevorzugt 0,1 bis 16bar noch bevorzugter 0,2 bis 3bar und insbesondere 0,5bar.The process pressure of the compressed air for conveying the release agent is between 0.1 and 25 bar, preferably 0.1 to 16 bar, more preferably 0.2 to 3 bar and in particular 0.5 bar.

Um eine flexible Einsetzbarkeit des Düsenkopfes an unterschiedliche Druckgussprozesse zu erreichen, ist in einem Ausführungsbeispiel der vorliegenden Erfindung das Düsenmodul durch Wahl eines geeigneten Werkstoffs an das zuzuführende Trennmittel anpassbar ausgebildet. So kann das Düsenmodul einfach ausgetauscht werden, wenn ein Trennmittel gefördert werden soll, das eine Komponente enthält, welche beispielsweise die Korrosion des Werkstoffes des einen Düsenkörpers begünstigen würde aber keinen Einfluss auf das Werkstoffverhalten eines Düsenkopfes mit einer anderen Werkstoffzusammensetzung zeigt. Der Werkstoff des Düsenmoduls besteht dabei vorteilhafter Weise aus einem verschleißfesten Material gewählt aus einer Gruppe beinhaltend eine Keramik, ein Edelstahl oder ein gehärteter Stahl, so dass auch Trennmittel eingesetzt werden können, die aus einem Gemisch aus Flüssigkeit und Feststoffen besteht, die durch die Beschleunigung der Feststoffe bei zu weichen Werkstoffen Abrasionen hervorrufen können. Durch das verschleißfeste Material wird ein Auswaschen durch Abrasion am Düsenmodul durch die Beschleunigung der Feststoffe verringert bzw. ganz verhindert.In order to achieve a flexible applicability of the nozzle head to different die-casting processes, in one embodiment of the present invention, the nozzle module is formed adaptable by selecting a suitable material to the release agent to be supplied. Thus, the nozzle module can be easily replaced if a release agent is to be promoted, which contains a component which would favor, for example, the corrosion of the material of a nozzle body but has no effect on the material behavior of a nozzle head with a different material composition. The material of the nozzle module is advantageously made of a wear-resistant material selected from a group comprising a ceramic, a stainless steel or a hardened steel, so that release agent can be used, which consists of a mixture of liquid and solids, by accelerating the Solids may cause abrasions if the materials are too soft. Because of the wear-resistant material, washing out by abrasion on the nozzle module is reduced or completely prevented by the acceleration of the solids.

Es ist nicht notwendig, dass das Düsenmodul vollständig aus dem verschleißfesten Material besteht Vielmehr ist es auch möglich, lediglich die dem Kolben zugewandte Oberfläche des Düsenmoduls mit einer gehärteten Oberfläche oder einer Beschichtung zu versehen. Ferner ist es möglich, den Werkstoff diversen im Stand der Technik bekannten Wärmebehandlung zu unterziehen, um seine Härte noch weiter zu erhöhen.It is not necessary that the nozzle module is made entirely of the wear-resistant material. Rather, it is also possible to provide only the surface of the nozzle module facing the piston with a hardened surface or a coating. Further, it is possible to subject the material to various heat treatment known in the art in order to further increase its hardness.

Um eine Abrasion oder eine Korrosion zu verhindern, die beispielsweise hervorgerufen werden kann, wenn ein in dem Trennmittel vorhandener Stoff den Werkstoff, aus dem das Düsenmodul hergestellt ist, in ungünstiger Weise beeinflusst, kann verhindert werden, indem die dem Kolben zugewandte Oberfläche des Düsenmoduls mit einer entsprechenden schützenden Beschichtung wie beispielsweise eine TiN- Beschichtung versehen ist.In order to prevent abrasion or corrosion, which may be caused, for example, when an existing in the release agent, the material from which the nozzle module is made, adversely affected, can be prevented by the piston-facing surface of the nozzle module with a corresponding protective coating such as a TiN coating is provided.

Um eine besonders kompakte Bauweise zu ermöglichen und auch Druckgussformen mit komplizierten Geometrien mit ausreichend Trennmittel gleichmäßig besprühen zu können, können die erfindungsgemäßen Düsenköpfe in dem Sprühkopf auf einem gemeinsamen Verteilerblock derart montierbar sein, dass den Düsenköpfen über gemeinsame Anschlüsse jeweils Trennmittel oder Druckluft zugeführt werden.In order to allow a particularly compact design and even pressure casting molds with complicated geometries with sufficient release agent, the nozzle heads according to the invention in the spray head on a common manifold block can be mounted such that the nozzle heads via common ports each release agent or compressed air are supplied.

Die vorliegende Erfindung bezieht sich ebenfalls auf ein Trennmittel enthaltend eine schichtbildende Komponente mit einem Schmelzpunkt von ≥700°C und eine nichtionogene Emulgatorkomponente. Es hat sich herausgestellt, dass durch ein solches Trennmittel die erfindungsgemäßen Vorteile in einfacher Weise erreicht werden können.The present invention also relates to a release agent containing a layer-forming component having a melting point of ≥700 ° C and a nonionic emulsifier component. It has been found that the advantages of the invention can be achieved in a simple manner by such a release agent.

Bevorzugt weist die schichtbildende Komponente einen Schmelzpunkt von ≥1000°C, noch bevorzugt ≥1100°C, weiter bevorzugt ≥1200°C, ferner bevorzugt ≥1300°C, sowie am meisten bevorzugt ≥1400°C aufPreferably, the layer-forming component has a melting point of ≥1000 ° C, more preferably ≥1100 ° C, more preferably ≥1200 ° C, further preferably ≥1300 ° C, and most preferably ≥1400 ° C

Eine "schichtbildende Komponente" im Sinne der vorliegenden Erfindung umfasst oder bezeichnet insbesondere eine Komponente, welche in der Lage ist, im Einsatzgebiet der betreffenden Erfindung durch Versprühen mittels eines erfindungsgemäßen Düsenkopfes eine Schicht an einer Druckgussform aufzubauen.A "layer-forming component" in the sense of the present invention comprises or designates in particular a component which is able to build up a layer on a die-casting mold by spraying by means of a nozzle head according to the invention in the field of application of the relevant invention.

Eine bevorzugte Ausführungsform der vorliegenden Erfindung bezieht sich auf ein wasserbasierendes Trennmittel.A preferred embodiment of the present invention relates to a water-based release agent.

Eine bevorzugte Ausführungsform der vorliegenden Erfindung bezieht sich auf ein Trennmittel, dessen schichtbildende Komponente Schmiermitteleigenschaften aufweist.A preferred embodiment of the present invention relates to a release agent whose film-forming component has lubricant properties.

"Schmiermtteleigenschaften" im Sinne der vorliegenden Erfindung umfasst oder bezeichnet insbesondere die Eigenschaft, zwei vom Trennmittel getrennte Festkörper (Form/Kokillenwand - Gussstück) gleitend gegeneinander zu verschieben ohne dass das Trennmittel abblättert bzw. unter minimalen Verlusten an Trennmittel."Lubricant properties" in the sense of the present invention comprises or designates in particular the property of slidably sliding two solids separated from the release agent (mold / mold wall casting) without the release agent peeling off or with minimal loss of release agent.

Ein solches Trennmittel besitzt insbesondere die Eigenschaft, dass es im vorliegenden Verfahren zum einen eine Schicht an einer Druckgussform ausbildet, die die Aufgabe hat, die Drukgussform während des Druckgussprozesses zu schützen und eine leichtere Entformung des Bauteils zu ermöglichen, und andererseits gleichzeitig Komponenten des erfindungsgemäßen Düsenkopf während des Aufsprühen des Trennmittels zu schmieren.In particular, such a release agent has the property that it forms a layer on a die in the present method, which has the task to protect the pressure mold during the die casting process and to facilitate removal of the component from the component, and at the same time components of the nozzle head according to the invention during the spraying of the release agent to lubricate.

Eine bevorzugte Ausführungsform der vorliegenden Erfindung bezieht sich auf ein Trennmittel, wobei die schichtbildende Komponente eine genügende Benetzbarkeit bzw. Haftwirkung ausübtA preferred embodiment of the present invention relates to a release agent wherein the film-forming component exerts sufficient wettability

Bevorzugt weist die schichtbildende Komponente einen Benetzungswinkel der Komponente zu Form bzw. Gussstück zu ≥0-≤180°, noch bevorzugt ≥90-≤165°, weiter bevorzugt von ≥90-≤135° auf.The layer-forming component preferably has a wetting angle of the component to form or cast to ≥ 0-≦ 180 °, more preferably ≥ 90-≦ 165 °, more preferably from ≥ 90-≦ 135 °.

Eine bevorzugte Ausführungsform der vorliegenden Erfindung bezieht sich auf ein Trennmittel, wobei die schichtbildende Komponente ausgewählt ist aus der Gruppe enthaltend Bornitrid, Aluminiumnitrid, Graphit, Oxide und Mischungen daraus.A preferred embodiment of the present invention relates to a release agent wherein the film-forming component is selected from the group consisting of boron nitride, aluminum nitride, graphite, oxides and mixtures thereof.

Eine bevorzugte Ausführungsform der vorliegenden Erfindung bezieht sich auf ein Trennmittel, wobei die nichtionogene Emulgatorkomponente eine Temperaturstabilität von mindestens 500°C aufweist.A preferred embodiment of the present invention relates to a release agent wherein the nonionic emulsifier component has a temperature stability of at least 500 ° C.

Unter "Temperaturstabilität" im Sinne der vorliegenden Erfindung wird insbesondere verstanden, dass die nichtionogene Emulgatorkomponente bis zu einer bestimmten Temperatur keine oder im wesentlichen keine chemischen Reaktionen, seien es Zersetzungsreaktionen oder Reaktionen mit weiteren Komponenten des Trennmittels oder dem Reaktionsgefäß eingeht, die zu nichtverdampfbaren Reaktionsprodukten führen."Temperature stability" in the context of the present invention is understood in particular to mean that the nonionic emulsifier component undergoes no or substantially no chemical reactions, be it decomposition reactions or reactions with further components of the release agent or the reaction vessel, which lead to non-evaporable reaction products ,

Eine Temperaturstabilität von mindestens 500°C hat sich für die meisten Anwendungen als besonders vorteilhaft erwiesen, da so der Prozess einfach und rückstandsfrei durchgeführt werden kann. Besonders bevorzugt weist die nichtionogene Emulgatorkomponente eine Temperaturstabilität von mindestens 500°C, noch bevorzugt 600°C, sowie am meisten bevorzugt 700°C auf,A temperature stability of at least 500 ° C has proven to be particularly advantageous for most applications, as this way the process can be carried out easily and residue-free. The nonionic emulsifier component particularly preferably has a temperature stability of at least 500 ° C., more preferably 600 ° C., and most preferably 700 ° C.

Eine bevorzugte Ausführungsform der vorliegenden Erfindung bezieht sich auf ein Trennmittel, wobei die nichtionogene Emulgatorkomponente rückstandsfrei verdampfbar istA preferred embodiment of the present invention relates to a release agent wherein the nonionic emulsifier component is vaporizable without residue

Unter "rückstandsfrei" wird insbesondere verstanden, dass nach Verdampfen der nichtionogenen Emulgatorkomponente der Rückstand ≤0,1 Gew%, bevorzugt ≤0,05 Gew% der ursprünglich eingesetzten nichtionogenen Emulgatorkomponente beträgt.By "residue-free" is meant, in particular, that after evaporation of the nonionic emulsifier component, the residue is ≦ 0.1% by weight, preferably ≦ 0.05% by weight of the originally used nonionic emulsifier component.

Eine bevorzugte Ausführungsform der vorliegenden Erfindung bezieht sich auf ein Trennmittel, wobei die nichtionogene Emulgatorkomponente einen Siedepunkt von ≥ 300° und ≤ 700° aufweist.A preferred embodiment of the present invention relates to a release agent wherein the nonionic emulsifier component has a boiling point of ≥ 300 ° and ≤ 700 °.

Ein Siedepunkt innerhalb dieser Temperaturgrenzen macht einen Einsatz des Trennmittels in einer Vielzahl von Anwendungen, insbesondere bei Anwendungen, die bei einer Temperatur von 400°-500° ablaufen möglich.A boiling point within these temperature limits makes possible the use of the release agent in a variety of applications, especially in applications that run at a temperature of 400 ° -500 °.

Bevorzugt weist die nichtionogene Emulgatorkomponente einen Siedepunkt von ≥350° und 650°≤, noch bevorzugt von ≥400° und ≤600°, sowie am meisten bevorzugt von ≥450° und ≤550° auf.Preferably, the nonionic emulsifier component has a boiling point of ≥350 ° and 650 ° ≤, more preferably ≥400 ° and ≤600 °, and most preferably ≥450 ° and ≤550 °.

Eine bevorzugte Ausführungsform der vorliegenden Erfindung bezieht sich auf ein Trennmittel, wobei die nichtionogene Emulgatorkomponente eine Siloxankomponente enthält.A preferred embodiment of the present invention relates to a release agent wherein the nonionic emulsifier component contains a siloxane component.

Unter "Siloxankomponente" wird insbesondere jede chemische Verbindung verstanden, welche Monomere der Einheit -O-SiR1R2-O- enthalten, wobei R1 und R2 unabhängig voneinander Wasserstoff oder organische Reste sein können.By "siloxane component" is meant, in particular, any chemical compound which contains monomers of the moiety -O-SiR 1 R 2 -O-, where R 1 and R 2 independently of one another may be hydrogen or organic radicals.

Eine bevorzugte Ausfuhrungsform der vorliegenden Erfindung bezieht sich auf ein Trennmittel, wobei die nichtionogene Emulgatorkomponente ausgewählt ist aus der Gruppe enthaltend Polyalkylsiloxane, Alkylarylsiloxane und Mischungen daraus.A preferred embodiment of the present invention relates to a release agent wherein the nonionic emulsifier component is selected from the group comprising polyalkylsiloxanes, alkylarylsiloxanes and mixtures thereof.

Unter "alkyl" im Sinne der vorliegenden Erfindung werden insbesondere C1-C8-Alkyle (linear und/oder verzweigt) verstanden.For the purposes of the present invention, "alkyl" is understood to mean, in particular, C 1 -C 8 -alkyls (linear and / or branched).

Unter "aryl" im Sinne der vorliegenden Erfindung werden insbesondere aromatische oder homoaromatische Arylverbindungen mit einem Molekulargewicht bis zu 300 Da verstanden.For the purposes of the present invention, "aryl" is understood in particular to mean aromatic or homoaromatic aryl compounds having a molecular weight of up to 300 Da.

Eine bevorzugte Ausführungsform der vorliegenden Erfindung bezieht sich auf ein Trennmittel, zusätzlich enthaltend mindestens eine Dispergiervennittlerkomponente.A preferred embodiment of the present invention relates to a release agent additionally containing at least one dispersant surfactant component.

Eine "Dispergiervermittlerkomponente" im Sinne der vorliegenden Erfindung ist insbesondere jede Verbindung deren Zusatz (in ausreichender Menge) ein Ausfällen der schichtbildendenden Komponente aus dem Trennmittel verhindert.For the purposes of the present invention, a "dispersant mediator component" is in particular any compound whose addition (in a sufficient amount) prevents precipitation of the layer-forming component from the release agent.

Eine bevorzugte Ausführungsform der vorliegenden Erfindung bezieht sich auf ein Trennmittel, wobei eine Dispergiervermittlerkomponente eine organische Salzverbindung ist. Verbindungen dieser Art haben sich als besonders günstig für die Zwecke der vorliegenden Erfindung erwiesen.A preferred embodiment of the present invention relates to a release agent wherein a dispersant component is an organic salt compound. Compounds of this type have proven to be particularly favorable for the purposes of the present invention.

Eine bevorzugte Ausführungsform der vorliegenden Erfindung bezieht sich auf ein Trennmittel, wobei die anionische und/oder kationische Dispergiervermittlerkomponente makromolekular ist. Dies hat den Vorteil, dass die Dispergiervermittlerkomponente in nur geringen Mengen benötigt wird.A preferred embodiment of the present invention relates to a release agent wherein the anionic and / or cationic dispersing mediator component is macromolecular. This has the advantage that the dispersing agent component is needed in only small amounts.

Eine bevorzugte Ausführungsform der vorliegenden Erfindung bezieht sich auf ein Trennmittel, wobei die anionische Dispergiervermittlerkomponente ein Carboxyvinylpolymer ist.A preferred embodiment of the present invention relates to a release agent wherein the anionic dispersant component is a carboxyvinyl polymer.

Eine bevorzugte Ausführungsform der vorliegenden Erfindung bezieht sich auf ein Trennmittel, wobei die kationische Dispergiervermittlerkomponente eine niedermolekulares sekundäres oder primäres Amin ist.A preferred embodiment of the present invention relates to a release agent wherein the cationic dispersant component is a low molecular weight secondary or primary amine.

Unter "niedermolekular" werden insbesondere Verbindungen mit einem Molekulargewicht von 250 Da oder geringer verstanden.By "low molecular weight" is meant in particular compounds having a molecular weight of 250 Da or less.

Bevorzugt ist die kationische Dispergiervermittlerkomponente ausgewählt aus der Gruppe Dimethylamin, Diethylamin, Methylethylamin, Ethylamin, Isopropylamin, Diisopropylamin, Ethylamin, Methylpropylamin oder Mischungen daraus.The cationic dispersing agent component is preferably selected from the group dimethylamine, diethylamine, methylethylamine, ethylamine, isopropylamine, diisopropylamine, ethylamine, methylpropylamine or mixtures thereof.

Eine bevorzugte Ausführungsform der vorliegenden Erfindung bezieht sich auf ein Trennmittel, wobei die schichtbildende Komponente einen Anteil (in Gew%) von ≥0,02 % und ≤5% aufweist. Damit kann eine gute Ausbildung der Trennschicht bei geringem Materialeinsatz erreicht werden.A preferred embodiment of the present invention relates to a release agent, wherein the layer-forming component has a content (in% by weight) of ≥0.02% and ≤5%. Thus, a good training of the release layer can be achieved with low material usage.

Bevorzugt weist die schichtbildende Komponente einen Anteil (in Gew%) von ≥0,05 % und ≤2,5%, noch bevorzugt ≥0,1 % und ≤2 %, weiter bevorzugt ≥0,5 % und ≤1,5%, sowie am meisten bevorzugt ≥0,75 % und ≤1% auf.The layer-forming component preferably has a proportion (in% by weight) of ≥0.05% and ≤2.5%, more preferably ≥0.1% and ≤2%, more preferably ≥0.5% and ≤1.5%. , and most preferably ≥0.75% and ≤1%.

Eine bevorzugte Ausführungsform der vorliegenden Erfindung bezieht sich auf ein Trennmittel, wobei die nichtionogene Emulgatorkomponente einen Anteil (in Gew%) von ≥ 1 % und ≤25% aufweist. Damit kann ebenfalls eine gute Ausbildung der Trennschicht bei geringem Materialeinsatz erreicht werden.A preferred embodiment of the present invention relates to a release agent, wherein the nonionic emulsifier component has a proportion (in% by weight) of ≥ 1% and ≤25%. This can also be achieved a good training of the release layer with low material usage.

Bevorzugt weist die nichtionogene Emulgatorkomponente einen Anteil (in Gew%) von ≥ 5 % und ≤20%, noch bevorzugt ≥8 % und ≤15% sowie am meisten bevorzugt ≥10 % und ≤12,5 % auf.The nonionic emulsifier component preferably has a proportion (in% by weight) of ≥ 5% and ≦ 20%, more preferably ≥ 8% and ≦ 15%, and most preferably ≥ 10% and ≦ 12.5%.

Eine bevorzugte Ausführungsform der vorliegenden Erfindung bezieht sich auf ein Trennmittel, wobei die Dispergiervermittlerkomponente einen Anteil (in Gew%) von ≥0,02 % und ≤ 10% aufweist.A preferred embodiment of the present invention relates to a release agent wherein the dispersing agent component has a content (% by weight) of ≥0.02% and ≤10%.

Im Falle, dass mehrere Dispergiervermittlerkomponenten im Trennmittel vorhanden sind, bezieht sich der Anteil auf die Summe der Dispergiervermittlerkomponenten (in Gew-%).In the case where several dispersing agent components are present in the release agent, the proportion refers to the sum of the dispersing agent components (in% by weight).

Durch einen Einsatz einer oder mehrere Dispergiervermittlerkomponenten mit diesem Anteil (in Gew-%) wird insbesondere eine Stabilität des Trennmittels hinsichtlich der schichtbildenden Komponente über das gesamte Verfahren erreicht.By using one or more dispersing agent components with this proportion (in% by weight), in particular, a stability of the separating agent with regard to the layer-forming component is achieved over the entire process.

Bevorzugt weist die Dispergiervermittlerkomponente einen Anteil (in Gew%) von ≥0,1 % und ≤5%, noch bevorzugt ≥0,25 % und ≤2,5%, sowie am meisten bevorzugt ≥0,5 % und ≤1 % auf.The dispersing agent component preferably has a proportion (in% by weight) of ≥ 0.1% and ≦ 5%, more preferably ≥ 0.25% and ≦ 2.5%, and most preferably ≥ 0.5% and ≦ 1% ,

Eine bevorzugte Ausführungsform der vorliegenden Erfindung bezieht sich auf ein Trennmittel, wobei der Anteil an schichtbildender Komponente (in Gew%) zu Dispergiervennittlerkomponente (in Gew %) von ≥0, 1: 1 und ≤10:1 beträgt .A preferred embodiment of the present invention relates to a release agent, wherein the proportion of the layer-forming component (in% by weight) to dispersant vater component (in% by weight) of ≥0, 1: 1 and ≤10: 1.

Ein solches Verhältnis hat sich für die meisten Anwendungen als günstig erwiesen, da so für viele Anwendungen der vorliegenden Erfindung eine materialsparende und zeiteffektive Aufbringung der schichtbildenden Komponente möglich ist.Such a ratio has been found to be favorable for most applications, as a material-saving and time-effective application of the layer-forming component is possible for many applications of the present invention.

Bevorzugt beträgt der Anteil an schichtbildender Komponente (in Gew%) zu Dispergiervermittlerkomponente (in Gew %) von ≥0,2:1 und ≤8:1, noch bevorzugt von ≥0,5:1 und ≤3:1, ferner bevorzugt von ≥0,75:1 und ≤2:1.The proportion of layer-forming component (in% by weight) to dispersing agent component (in% by weight) of .gtoreq.0.2: 1 and .ltoreq.8: 1, more preferably of .gtoreq.0.5: 1 and .ltoreq.3: 1, further preferably of ≥0.75: 1 and ≤2: 1.

Eine bevorzugte Ausführungsform der vorliegenden Erfindung bezieht sich auf ein Trennmittel, wobei der Anteil an schichtbildender Komponente (in Gew%) zu nichtionogenen Emulgatorkomponente (in Gew %) von ≥0,01: und ≤0,1: beträgt.A preferred embodiment of the present invention relates to a release agent wherein the proportion of the layer-forming component (in% by weight) to nonionic emulsifier component (in% by weight) is ≥0.01: and ≤0.1 :.

Ein solches Verhältnis hat sich für die meisten Anwendungen als günstig erwiesen, da der Anteil an schichtbildender Komponente im Verhältnis zur nichtionogenen Emulgatorkomponente nicht zu groß wird und somit bei den meisten Anwendungen der vorliegenden Erfindung, eine gleichmäßige Schichtauftragung erreicht wird.Such a ratio has proved to be favorable for most applications, since the proportion of layer-forming component in relation to non-ionic Emulsifier component does not become too large and thus in most applications of the present invention, a uniform layer application is achieved.

Bevorzugt beträgt der Anteil an schichtbildender Komponente (in Gew%) zu nichtionogenen Emulgatorkomponente (in Gew %) von ≥0,02:1 und ≤0,075:1, noch bevorzugt ≥0,03:1 und ≤0,06:1 sowie am meisten bevorzugt ≥0,04:1 und ≤0,05:1.The proportion of layer-forming component (in% by weight) to nonionic emulsifier component (in% by weight) of ≥ 0.02: 1 and ≦ 0.075: 1, more preferably ≥ 0.03: 1 and ≦ 0.06: 1, and on most preferably ≥0.04: 1 and ≤0.05: 1.

Eine bevorzugte Ausführungsform der vorliegenden Erfindung bezieht sich auf ein Trennmittel nach einem der vorhergehenden Ansprüche, wobei das Trennmittel eine Viskosität von ≥2 mm2/S bei 20°C und ≤20 mm2/s bei 20°C aufweist.A preferred embodiment of the present invention relates to a release agent according to any one of the preceding claims, wherein the release agent has a viscosity of ≥2 mm 2 / S at 20 ° C and ≤20 mm 2 / s at 20 ° C.

Ein Trennmittel mit einer solchen Viskosität lässt sich insbesondere durch die oben beschriebene Düse gut versprühen und ist somit für die meisten Anwendungen der vorliegenden Erfindung besonders geeignet.A release agent having such a viscosity can be sprayed well in particular by the nozzle described above and is therefore particularly suitable for most applications of the present invention.

Bevorzugt weist das Trennmittel eine Viskosität von >3 mm2/s und ≤15 mm2/s, noch bevorzugt von ≥6 mm2/s und ≤13mm2/s, sowie am meisten bevorzugt von ≥9 mm2/s und ≤11 mm2/s auf.The release agent preferably has a viscosity of> 3 mm 2 / s and ≦ 15 mm 2 / s, more preferably 6 mm 2 / s and ≦ 13 mm 2 / s, and most preferably 9 mm 2 / s and ≦ 11 mm 2 / s.

Eine bevorzugte Ausführungsform der vorliegenden Erfindung bezieht sich auf ein Trennmittel nach einem der vorhergehenden Ansprüche, wobei das Trennmittel eine Dichte von≥0,9 g/cm3 und ≤1,1 g/cm3 aufweist.A preferred embodiment of the present invention relates to a release agent according to any one of the preceding claims, wherein the release agent has a density of ≥ 0.9 g / cm 3 and ≤ 1.1 g / cm 3 .

Ein Trennmittel mit einer solchen Dichte lässt sich insbesondere durch die oben beschriebene Düse gut versprühen und ist somit für die meisten Anwendungen der vorliegenden Erfindung besonders geeignet.A release agent having such a density can be sprayed well in particular by the nozzle described above and is thus particularly suitable for most applications of the present invention.

Bevorzugt weist das Trennmittel eine Dichte von ≥0,95 g/cm3 und ≤1,05 g/cm3, noch bevorzugt von ≥0,98 g/cm3 und ≤1,03 g/cm3, sowie am meisten bevorzugt von ≥0,99 g/cm3 und ≤1,01 g/cm3 auf.Preferably, the release agent has a density of ≥ 0.95 g / cm 3 and ≤1.05 g / cm 3 , more preferably ≥ 0.98 g / cm 3 and ≤ 1.03 g / cm 3 , and most preferably of ≥ 0.99 g / cm 3 and ≤1.01 g / cm 3 .

Die vorliegende Erfindung bezieht sich außerdem auf ein Verfahren zum Auftragen und Verteilen eines oben beschriebenen Trennmittels auf Druck- oder Spritzgussformen unter Verwendung eines oben beschriebenen Sprühkopfes bzw, DüsenkopfesThe present invention also relates to a method for applying and distributing a release agent described above to printing or injection molding using a spray head or nozzle head as described above

Es hat sich herausgestellt, dass ein solches Verfahren geringere Taktzeiten des Druckgussprozesses ermöglicht und gleichzeitig die Material- Energie- und Entsorgungskosten verringert.It has been found that such a process allows lower cycle times of the die casting process while reducing material energy and disposal costs.

Eine bevorzugte Ausführungsform der vorliegenden Erfindung bezieht sich auf ein Verfahren wobei ≥50 und ≤150 g /Gussteil an Trennmittel eingesetzt werden.A preferred embodiment of the present invention relates to a process wherein ≥50 and ≤150 g / cast of release agent are used.

Eine bevorzugte Ausführungsform der vorliegenden Erfindung bezieht sich auf ein Verfahren wobei Druckluft mit einem Druck von ≥0,1 bar und ≤25 bar, noch bevorzugt von ≥1 bar und ≤10 bar, sowie am meisten bevorzugt von 6 bar eingesetzt wird.A preferred embodiment of the present invention relates to a process wherein compressed air having a pressure of ≥0.1 bar and ≤25 bar, more preferably of ≥1 bar and ≤10 bar, and most preferably of 6 bar is used.

Eine bevorzugte Ausführungsform der vorliegenden Erfindung bezieht sich auf ein Verfahren wobei der Verfahrensdruck der Druckluft zur Förderung des Trennmittels zwischen ≥0,1 bar und ≤25 bar, noch bevorzugt von ≥0,1 bar und ≤16 bar, noch bevorzugter ≥0,2 bar und ≤3 bar sowie am meisten bevorzugt von 0,5 bar beträgt.A preferred embodiment of the present invention relates to a process wherein the process pressure of the compressed air for conveying the release agent is between ≥0.1 bar and ≤25 bar, more preferably ≥0.1 bar and ≤16 bar, more preferably ≥0.2 bar and ≤3 bar and most preferably of 0.5 bar.

Hinsichtlich weiterer vorteilhafter Ausgestaltungen und Weiterbildung der Erfindung wird auf die Unteransprüche sowie die nachfolgende Beschreibung eines Ausführungsbeispiels anhand der beiliegenden Zeichnung verwiesen. In der Zeichnung zeigt:

Figur 1
eine Schnittdarstellung durch ein erfindungsgemäßen Düsenkopf; und
Figur 2
einen Sprühkopf mit zwei auf einer gemeinsamen Grundplatte montierten Düsenköpfen.
With regard to further advantageous embodiments and development of the invention, reference is made to the dependent claims and the following description of an embodiment with reference to the accompanying drawings. In the drawing shows:
FIG. 1
a sectional view through a nozzle head according to the invention; and
FIG. 2
a spray head with two mounted on a common base plate nozzle heads.

Figur 1 zeigt einen Querschnitt durch einen erfindungsgemäßen Düsenkopf 1 zum Einsatz in einen Sprühkopf 2 zum Auftragen und Verteilen von Trennmittel auf Druck- oder Spritzgussformen.Figure 1 shows a cross section through a nozzle head 1 according to the invention for use in a spray head 2 for applying and distributing release agent on pressure or injection molds.

Der Düsenkopf 1 weist einen Gehäusemantel 3 auf, in dem ein Bearbeitungsraum 4 ausgebildet ist, der ein zwischen einer trichterförmigen Öffnung 5 und einem Kolben 6 angeordnetes Düsenmodul 7 aufweist. Das Düsenmodul 7 ist an seinem dem Kolben 6 zugewandten Ende ein Außengewinde 8 versehen, mit welchem es in den Gehäusemantel 3 eingeschraubt ist. Der Kolben 6 reicht mit seiner der trichterförmigen Öffnung 5 zugewandten Seite in einer geschlossenen Stellung in das Düsenmodul 7 hinein und verschließt dabei eine in dem Gehäusemantel 3 ausgebildete, nicht dargestellte Eintrittsöffnung, über die ein ebenfalls nicht dargestellter in dem Gehäusemantel 3 ausgebildeter Anschluss mit dem Bearbeitungsraum 4 kommuniziert. Zur Führung des druckluftbetätigbaren Kolbens 6 ist in diesem Ausführungsbeispiel eine Führungsbuchse 9 in dem Gehäusemantel 3 angeordnet.The nozzle head 1 has a housing jacket 3, in which a processing space 4 is formed, which has a nozzle module 7 arranged between a funnel-shaped opening 5 and a piston 6. The nozzle module 7 is provided at its end facing the piston 6, an external thread 8, with which it is screwed into the housing shell 3. The piston 6 extends with its the funnel-shaped opening 5 side facing in a closed position into the nozzle module 7 and thereby closes a formed in the housing shell 3, not shown inlet, via which also not shown formed in the housing shell 3 connection with the processing space 4 communicates. To guide the pneumatically actuable piston 6, a guide bush 9 is arranged in the housing shell 3 in this embodiment.

Um den Kolben 6 in eine geöffnete Stellung zu bringen und so die Eintrittsöffnung für die Zufuhr von Trennmittel in den Bearbeitungsraum 4 freizugeben, ist ein Anschluss für Druckluft in dem Gehäusemantel 3 ausgebildet, die über eine nicht dargestellte Druckluft-Eintrittsöffnung mit dem Druckluftraum 10a verbunden ist. Der Kolben 6 wird in diesem Ausführungsbeispiel allein durch die Federkraft der Feder 12 in die geschlossene Stellung zurückgeführt, indem die Druckluftzufuhr zu dem Druckluftraum 10a unterbrochen wird. In dem Gehäusemantel 3 ist eine mit dem Druckluftraum 10b kommunizierende Entlüftungsöffnung ausgebildet, damit die im Druckluftraum 10b vorhandene Luft bei der Rückführung des Kolbens entsprechend der damit verbundenen Volumenverkleinerung entweichen kann .In order to bring the piston 6 in an open position and thus release the inlet opening for the supply of release agent in the processing chamber 4, a connection for compressed air in the housing shell 3 is formed, which is connected via a compressed air inlet opening, not shown, with the compressed air space 10a , The piston 6 is returned in this embodiment alone by the spring force of the spring 12 in the closed position by the compressed air supply to the compressed air space 10 a is interrupted. In the housing shell 3 a communicating with the compressed air space 10 b vent opening is formed so that the air in the compressed air space 10 b existing in the Return of the piston can escape according to the associated volume reduction.

Der Druckluftraum 10a, 10b und der Bearbeitungsraum 4 sind über ein Dichtmittel 11, wie beispielsweise ein O-Ring, gegeneinander abgedichtet, so dass weder die Druckluft zur Steuerung des Kolbens 6 in den Bearbeitungsraum 4 gelangen kann, noch Trennmittel in den Druckluftraum 10a, 10b,The compressed air space 10a, 10b and the processing space 4 are sealed against each other via a sealing means 11, such as an O-ring, so that neither the compressed air for controlling the piston 6 can enter the processing space 4, nor release agent in the compressed air space 10a, 10b .

Wird nun Druckluft über den Druckluftanschluss durch die Druckluft-Eintrittsöffnung in den Druckluftraum 10a geleitet, so wird der Kolben entgegen der Federkraft einer Rückstellfeder 12 aus dem Modul 7 hinausbewegt, wodurch die nicht dargestellte Eintrittsöffnung für das Trennmittel durch den Kolben 6 freigegeben wird. Das Trennmittel kann dadurch in den Bearbeitungsraum 4 gelangen und für den Fall, dass das Trennmittel drucklos gefördert wird, über eine Rückstellbewegung des Kolbens 6 über das Düsenmodul 7 der trichterförmigen Öffnung 5 zugeführt werden. Dazu ist es lediglich notwendig, die Einleitung der Druckluft in den Druckluftraum 10a zu unterbrechen.Will be compressed air directed via the compressed air connection through the compressed-air inlet opening into the compressed air chamber 10a, the piston against the spring force of a return spring 12 moved out of the module 7, whereby the inlet opening, not shown, for the separating agent is released by the piston. 6 The release agent can thereby enter the processing space 4 and, in the event that the release agent is conveyed without pressure, are fed via a return movement of the piston 6 via the nozzle module 7 of the funnel-shaped opening 5. For this purpose, it is only necessary to interrupt the introduction of compressed air into the compressed air space 10a.

Um eine Prozesssteuerung durch eine gezielte Trennmittelzufuhr zu ermöglichen, beispielsweise, indem die Eintrittsöffnung des Trennmittels nur teilweise von dem Kolben 6 freigegeben wird, oder die Überführung des Kolbens 6 von der geöffneten Stellung in die geschlossene Stellung zu beschleunigen, ist in einem nicht dargestellten Ausführungsbeispiel ein weiterer Druckluftanschluss im Gehäusemantel 3 ausgebildet, der über eine weitere Eintrittsöffnung mit dem Druckluftraum 10b kommuniziert. Der Kolben 6 wird in diesem Ausführungsbeispiel in die gewünschte Stellung bewegt, indem Druckluft in den Druckluftraum 10b eingeleitet wird, welche entweder die Federkraft der Feder 12 unterstützt, den Kolben 6 schneller in die geschlossene Stellung zu verfahren, oder die Position des Kolbens 6 solange verändert bis sich ein Druckgleichgewicht zwischen den Drucklufträumen 10a, 10b einstellt, um den Kolben 6 in einer Zwischenstellung zu halten und so die Eintrittsöffnung des Trennmittels nur teilweise zu öffnen. Natürlich ist es auch in diesem Ausführungsbeispiel möglich, den Kolben 6 allein durch die Federkraft der Feder 12 zurückzustellen, indem lediglich die Druckluftzufuhr zu dem Druckluftraum 10a unterbrochen wird, ohne dass zusätzlich Druckluft dem Druckluftraum 10b zugeführt wirdTo allow process control by a targeted release agent, for example, by the inlet opening of the release agent is only partially released from the piston 6, or to accelerate the transfer of the piston 6 from the open position to the closed position, is in an embodiment, not shown further compressed air connection formed in the housing shell 3, which communicates via a further inlet opening with the compressed air space 10b. The piston 6 is moved in this embodiment in the desired position by compressed air is introduced into the compressed air space 10b, which either supports the spring force of the spring 12 to move the piston 6 faster in the closed position, or changed the position of the piston 6 as long until a pressure equilibrium between the compressed air spaces 10a, 10b adjusts to hold the piston 6 in an intermediate position and so the Only partially open the inlet opening of the release agent. Of course, it is also possible in this embodiment, to reset the piston 6 solely by the spring force of the spring 12 by only the compressed air supply to the compressed air space 10a is interrupted without additional compressed air is supplied to the compressed air space 10b

Die Zuführung des Trennmittels zu der Trichterförmigen Öffnung5 über das Düsenmodul 7 kann aber auch kontinuierlich ohne Rückstellbewegung des Kolbens 6 erfolgen, indem das Trennmittel druckbeaufschlagt in den Bearbeitungsraum 4 eingeleitet wird. Der Kolben 6 wirkt in diesem Fall nicht dosierend, sondern dient lediglich zur Steuerung des Anfangs der Zuführung des Trennmittels und damit des Sprühvorgangs und beendet die Zuführung des Trennmittels am Ende eines Sprühzyklusses durch eine entsprechend eingeleitete Rückstellbewegung mittels Steuerung der Druckluftzufuhr in den Druckluftraum 10a, 10b,The supply of the release agent to the funnel-shaped opening 5 via the nozzle module 7 can also be carried out continuously without return movement of the piston 6 by the release agent is introduced into the processing chamber 4 pressurized. The piston 6 acts in this case not dosing, but only serves to control the beginning of the supply of the release agent and thus the spraying process and terminates the supply of the release agent at the end of a Sprühzyklusses by a correspondingly initiated return movement by controlling the compressed air supply in the compressed air space 10a, 10b .

Durch die Austauschbarkeit des Düsenmoduls 7 in dem Gehäusemantel 3 ist es möglich, die Fördermenge des Trennmittels bei kontinuierlicher Förderung beispielsweise über den anzuwählenden. Durchmesser des Düsenmoduls 7 zu steuern. Ferner kann das Düsenmodul 7 aus einem anderen, an die Zusammensetzung des Trennmittel angepassten Werkstoff hergestellt sein als die restlichen Bestandteile des Düsenkopfes 1, Beispielsweise kann der Düsenkopf 1 aufgrund des zu bevorzugenden geringeren Gewichts und der damit verbundenen einfacheren Verfahrbarkeit aufgrund geringerer Trägheitskräfte vorwiegend aus Aluminium bestehen und das Düsemodul 7 beispielsweise aus einem Edelstahl, um die Neigung zur Abrasion durch das zu fördernde Trennmittel an dem Düsenmodul 7 zu verringern bzw. ganz zu verhindern, was notwendig wird, wenn das Trennmittel beispielsweise Feststoffe oder andere abrasions- oder korrosionsfördernde Stoffe beinhaltet.Due to the interchangeability of the nozzle module 7 in the housing shell 3, it is possible, the delivery rate of the release agent in continuous promotion, for example on the one to be selected. Diameter of the nozzle module 7 to control. Furthermore, the nozzle module 7 may be made of a different, adapted to the composition of the release agent material than the remaining components of the nozzle head 1, For example, the nozzle head 1 due to the lower weight and the associated easier handling due to lower inertial forces mainly consist of aluminum and the nozzle module 7, for example, made of a stainless steel, to reduce the tendency to abrasion by the release agent to be promoted on the nozzle module 7 or completely prevent what is necessary if the release agent, for example, solids or other abrasive or corrosive substances.

Die Figur 2 zeigt einen erfindungsgemäßen Sprühkopf 2 mit zwei auf einem gemeinsamen Verteilerblock 13 montierten Düsenköpfen 1. Die Düsenköpfe 1 sind in Flanschbauweise montiert, was eine besonderes kompakte Bauweise und das Anordnen mehrerer Düsenköpfe 1 in geringen Abständen ermöglicht, so dass auch Druckgussformen mit komplizierteren Geometrien mit ausreichend Trennmittel gleichmäßig und gezielt besprüht werden können.FIG. 2 shows a spray head 2 according to the invention with two nozzle heads 1 mounted on a common distributor block 13. The nozzle heads 1 are mounted in flange construction, which results in a particularly compact design and the arrangement of several nozzle heads 1 made possible at short intervals, so that even die casting molds with more complicated geometries with sufficient release agent can be sprayed uniformly and selectively.

Claims (9)

Düsenkopf (1), insbesondere für einen Sprühkopf (2) zum Auftragen und Verteilen von Trennmittel auf Druck- oder Spritzgussformen, mit - einem Gehäusemantel (3), in dem ein Bearbeitungsraum (4) ausgebildet ist, der ein zwischen einer trichterförmigen Öffnung (5) und einem Kolben (6) angeordnetes Düsenmodul (7) aufweist, - mindestens einem an dem Gehäusemantel (3) ausgebildeten Anschluss, um der trichterförmigen Öffnung (5) über das Düsenmodul (7) Trennmittel zuzuführen, - mindestens einem an dem Gehäusemantel (3) ausgebildeten Anschluss, um der trichterförmigen Öffnung (5) Druckluft zuzuführen wobei der Kolben (6) mit seiner der trichterförmigen Öffnung (5) zugewandten Seite in einer geschlossenen Stellung in das Düsenmodul (7) hineinragt und eine in dem Gehäusemantel (3) ausgebildete Eintrittsöffnung für das Trennmittel verschließt und in einer geöffneten Stellung die Eintrittsöffnung für das Trennmittel freigibt,
dadurch gekennzeichnet, dass das Düsenmodul (7) lösbar in dem Gehäusemantel (3) befestigt ist.Nozzle head (1), in particular for a spray head (2) for applying and distributing release agent on pressure or injection molds, with - A housing shell (3) in which a processing space (4) is formed, which has a between a funnel-shaped opening (5) and a piston (6) arranged nozzle module (7), at least one connection formed on the housing jacket (3) in order to supply release means to the funnel-shaped opening (5) via the nozzle module (7), - At least one on the housing shell (3) formed connection to supply the funnel-shaped opening (5) compressed air wherein the piston (6) projects with its funnel-shaped opening (5) side facing in a closed position in the nozzle module (7) and closes in the housing shell (3) formed inlet opening for the release agent and in an open position, the inlet opening for the Release agent releases,
characterized in that the nozzle module (7) is releasably secured in the housing shell (3). Düsenkopf (1) nach Anspruch 1, dadurch gekennzeichnet, dass die Fördermenge des Trennmittels über die Geometrie des Düsenmoduls (7) variierbar ist.Nozzle head (1) according to claim 1, characterized in that the delivery rate of the separating means over the geometry of the nozzle module (7) is variable. Düsenkopf (1) nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass das Düsenmodul (7) durch Wahl eines geeigneten Werkstoffes an eine Zusammensetzung des zuzuführenden Trennmittels anpassbar ist.Nozzle head (1) according to claim 1 or 2,
characterized in that the nozzle module (7) is adaptable by selecting a suitable material to a composition of the release agent to be supplied. Düsenkopf (1) nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass die dem Kolben (6) zugewandte Oberfläche des Düsenmoduls (7) eine gehärtete Oberfläche aufweist.Nozzle head (1) according to one of the preceding claims,
characterized in that the piston (6) facing surface of the nozzle module (7) has a hardened surface. Düsenkörper (1) nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass die dem Kolben (6) zugewandte Oberfläche des Düsenmoduls (7) mit einer Beschichtung versehen ist.Nozzle body (1) according to one of the preceding claims,
characterized in that the piston (6) facing surface of the nozzle module (7) is provided with a coating. Sprühkopf (2) mit mindestens zwei Düsenköpfen (1) nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, dass die Düsenköpfe (1) an einen gemeinsamen Verteilerblock (13) derart montierbar sind, dass den Düsenköpfen (1) über mindestens einen gemeinsamen Anschluss das Trennmittel und/oder die Druckluft zuführbar ist.Spray head (2) with at least two nozzle heads (1) according to one of claims 1 to 5,
characterized in that the nozzle heads (1) to a common manifold block (13) are mountable such that the nozzle heads (1) via at least one common port, the release agent and / or the compressed air can be fed. Trennmittel, insbesondere einsetzbar in einem Düsenkopf nach den vorhergehenden Ansprüchen, enthaltend eine schichtbildende Komponente mit einem Schmelzpunkt von ≥700°C und eine nichtionogene Emulgatorkomponente.Release agent, in particular usable in a nozzle head according to the preceding claims, containing a layer-forming component with a melting point of ≥700 ° C and a nonionic emulsifier. Trennmittel nach Anspruch 8, wobei die schichtbildende Komponente Schmiermitteleigenschaften aufweist.A release agent according to claim 8, wherein the layer-forming component has lubricant properties. Verfahren zum Auftragen und Verteilen eines Trennmittels nach einem der Ansprüche 7 oder 8 auf Druck- oder Spritzgussformen unter Verwendung eines Sprühkopfes bzw. eines Düsenkopfes nach einem der Ansprüche 1 bis 5.Method for applying and distributing a release agent according to one of Claims 7 or 8 to pressure or injection molds using a spray head or a nozzle head according to one of Claims 1 to 5.
EP06011537.5A 2006-06-02 2006-06-02 Spray head for coating a casting mould with a release agent Active EP1862239B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES06011537.5T ES2593037T3 (en) 2006-06-02 2006-06-02 Spray head for coating a cast mold with a separating agent
DE202006020839U DE202006020839U1 (en) 2006-06-02 2006-06-02 Nozzle head for applying and distributing release agent on pressure or injection molds
EP10176909A EP2272606A1 (en) 2006-06-02 2006-06-02 Spray head for coating a casting mould with a release agent
EP06011537.5A EP1862239B1 (en) 2006-06-02 2006-06-02 Spray head for coating a casting mould with a release agent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06011537.5A EP1862239B1 (en) 2006-06-02 2006-06-02 Spray head for coating a casting mould with a release agent

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP10176909A Division-Into EP2272606A1 (en) 2006-06-02 2006-06-02 Spray head for coating a casting mould with a release agent

Publications (2)

Publication Number Publication Date
EP1862239A1 true EP1862239A1 (en) 2007-12-05
EP1862239B1 EP1862239B1 (en) 2016-06-29

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EP06011537.5A Active EP1862239B1 (en) 2006-06-02 2006-06-02 Spray head for coating a casting mould with a release agent

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EP10176909A Withdrawn EP2272606A1 (en) 2006-06-02 2006-06-02 Spray head for coating a casting mould with a release agent

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EP (2) EP2272606A1 (en)
DE (1) DE202006020839U1 (en)
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108722697A (en) * 2018-06-25 2018-11-02 丰汉电子(上海)有限公司 A kind of mould release nozzle
CN109093071A (en) * 2018-09-20 2018-12-28 天长市兴宇铸造有限公司 A kind of casting of traction seat and treatment process
CN115533065A (en) * 2022-10-10 2022-12-30 重庆力劲机械有限公司 Cold chamber die casting cavity release agent spraying system and method

Citations (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3667682A (en) 1970-07-20 1972-06-06 Grovhac Inc Spray gun
US3874862A (en) 1973-12-13 1975-04-01 Ball Brothers Res Corp Mold release composition for molten glass and method of application
CH583891A5 (en) 1973-08-24 1977-01-14 Cryostar Ag
DE2542240C3 (en) 1975-09-23 1981-07-30 Lechler Gmbh & Co Kg, 7012 Fellbach Hollow cone nozzle for atomizing liquid
DE3108793A1 (en) 1981-03-07 1982-09-30 Bima Maschinenfabrik Gmbh, 7450 Hechingen Adhesive-applying device especially for the leather goods and shoe industry
DE3326016A1 (en) 1982-07-19 1984-01-19 W.R. Grace & Co., 02140 Cambridge, Mass. DELIVERY DEVICE
DE3602921A1 (en) * 1986-01-31 1987-08-06 Rolf Daume Injection nozzle
DE3629696A1 (en) 1986-09-01 1988-03-10 Thurner Bayer Druckguss Spray device
DE3644184A1 (en) 1986-12-23 1988-07-07 Frech Oskar Gmbh & Co SPRAYING HEAD, ESPECIALLY FOR APPLYING AND DISTRIBUTING SPRAYING AGENTS ON DIE CASTING AND DIE FORGING MOLDS
DE3249545C2 (en) 1982-10-15 1989-03-02 Oskar Frech Gmbh + Co, 7060 Schorndorf, De
US4907741A (en) * 1987-04-09 1990-03-13 Acumeter Laboratories, Inc. Poppet-valve-controlled fluid nozzle applicator
DE9015533U1 (en) 1990-11-13 1991-01-31 Mattina, Antonio, 5030 Huerth, De
EP0550028A1 (en) * 1991-12-26 1993-07-07 Dow Corning Toray Silicone Company, Limited Mold-release agent composition for aluminum die-casting
DE4423414A1 (en) 1994-07-05 1996-01-11 Continental Ag Release agent for vulcanising rubber prods. with expansion bellows
US5645747A (en) 1991-04-05 1997-07-08 The Boeing Company Composite consolidation using induction heating
GB2315034A (en) * 1996-07-09 1998-01-21 Lothar Thoni A method for casting aluminium; release agents
EP0734460B1 (en) 1993-12-18 1999-05-12 Robert Bosch Gmbh Process for producing a hard material layer
EP0997230A1 (en) 1998-10-01 2000-05-03 POLITEC GmbH Method and apparatus for distributing a fluid polishing media
EP0853498B1 (en) 1995-10-04 2002-03-06 Boehringer Ingelheim International GmbH Device for mounting a component exposed to a pressurized fluid
US20020105111A1 (en) 2001-02-05 2002-08-08 Grabel John V. Apparatus and method of manufacturing seal rings
DE10212861A1 (en) 2001-03-22 2002-09-26 Denso Corp Injection molding demolding agent comprises a silicone oil, a solid lubricant, an organic binder, a dispersant and water
EP1287897A2 (en) 2001-08-29 2003-03-05 ITW Oberflächentechnik GmbH & Co. KG Apparatus for spraying liquids
WO2003069036A1 (en) * 2002-02-13 2003-08-21 International Machinery Sales, Inc. Interlacing textile slide jet
DE10207197A1 (en) * 2002-02-21 2003-09-04 Alstom Switzerland Ltd High pressure injection nozzle for especially gas turbine has nozzle insert with outlet orifice in communication with nozzle orifice, and consisting of ceramic or precious stone material
EP1410847A2 (en) * 2002-10-16 2004-04-21 Nordson Corporation Interchangeable nozzle for a dispensing module
EP1486473A1 (en) * 2003-06-13 2004-12-15 ESK Ceramics GmbH & Co.KG Durable mould release coatings for die casting of nonferrous metals comprising boron nitride
WO2005009627A2 (en) 2003-07-14 2005-02-03 Nordson Corporation Apparatus and method for dispensing discrete amounts of viscous material

Patent Citations (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3667682A (en) 1970-07-20 1972-06-06 Grovhac Inc Spray gun
CH583891A5 (en) 1973-08-24 1977-01-14 Cryostar Ag
US3874862A (en) 1973-12-13 1975-04-01 Ball Brothers Res Corp Mold release composition for molten glass and method of application
DE2542240C3 (en) 1975-09-23 1981-07-30 Lechler Gmbh & Co Kg, 7012 Fellbach Hollow cone nozzle for atomizing liquid
DE3108793A1 (en) 1981-03-07 1982-09-30 Bima Maschinenfabrik Gmbh, 7450 Hechingen Adhesive-applying device especially for the leather goods and shoe industry
DE3326016A1 (en) 1982-07-19 1984-01-19 W.R. Grace & Co., 02140 Cambridge, Mass. DELIVERY DEVICE
DE3249545C2 (en) 1982-10-15 1989-03-02 Oskar Frech Gmbh + Co, 7060 Schorndorf, De
DE3602921A1 (en) * 1986-01-31 1987-08-06 Rolf Daume Injection nozzle
DE3629696A1 (en) 1986-09-01 1988-03-10 Thurner Bayer Druckguss Spray device
DE3644184A1 (en) 1986-12-23 1988-07-07 Frech Oskar Gmbh & Co SPRAYING HEAD, ESPECIALLY FOR APPLYING AND DISTRIBUTING SPRAYING AGENTS ON DIE CASTING AND DIE FORGING MOLDS
US4907741A (en) * 1987-04-09 1990-03-13 Acumeter Laboratories, Inc. Poppet-valve-controlled fluid nozzle applicator
DE9015533U1 (en) 1990-11-13 1991-01-31 Mattina, Antonio, 5030 Huerth, De
US5645747A (en) 1991-04-05 1997-07-08 The Boeing Company Composite consolidation using induction heating
EP0550028A1 (en) * 1991-12-26 1993-07-07 Dow Corning Toray Silicone Company, Limited Mold-release agent composition for aluminum die-casting
EP0734460B1 (en) 1993-12-18 1999-05-12 Robert Bosch Gmbh Process for producing a hard material layer
DE4423414A1 (en) 1994-07-05 1996-01-11 Continental Ag Release agent for vulcanising rubber prods. with expansion bellows
EP0853498B1 (en) 1995-10-04 2002-03-06 Boehringer Ingelheim International GmbH Device for mounting a component exposed to a pressurized fluid
GB2315034A (en) * 1996-07-09 1998-01-21 Lothar Thoni A method for casting aluminium; release agents
EP0997230A1 (en) 1998-10-01 2000-05-03 POLITEC GmbH Method and apparatus for distributing a fluid polishing media
US20020105111A1 (en) 2001-02-05 2002-08-08 Grabel John V. Apparatus and method of manufacturing seal rings
DE10212861A1 (en) 2001-03-22 2002-09-26 Denso Corp Injection molding demolding agent comprises a silicone oil, a solid lubricant, an organic binder, a dispersant and water
EP1287897A2 (en) 2001-08-29 2003-03-05 ITW Oberflächentechnik GmbH & Co. KG Apparatus for spraying liquids
WO2003069036A1 (en) * 2002-02-13 2003-08-21 International Machinery Sales, Inc. Interlacing textile slide jet
DE10207197A1 (en) * 2002-02-21 2003-09-04 Alstom Switzerland Ltd High pressure injection nozzle for especially gas turbine has nozzle insert with outlet orifice in communication with nozzle orifice, and consisting of ceramic or precious stone material
EP1410847A2 (en) * 2002-10-16 2004-04-21 Nordson Corporation Interchangeable nozzle for a dispensing module
EP1486473A1 (en) * 2003-06-13 2004-12-15 ESK Ceramics GmbH & Co.KG Durable mould release coatings for die casting of nonferrous metals comprising boron nitride
WO2005009627A2 (en) 2003-07-14 2005-02-03 Nordson Corporation Apparatus and method for dispensing discrete amounts of viscous material

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
"Aufbau und Anwendung von Coatings auf der Basis von Borntrid", KERAMISCHE ZEITSCHRIFTEN, no. 4, 1993, pages 206 - 209, XP003023146, Retrieved from the Internet <URL:http://www.a-m.de/deutsch/literatur/ke0493.htm>
PETROFER INDUSTRIAL OILS AND CHEMICALS: "Die-Lubric BCH-1 wassermischbares Formtrennmittel", PRODUKT INFORMATION, pages 1, XP003023147
Rezeptur-Stammdaten zur öffentlichen Vorbenutzung Fa. Petrofer Chemie; 3 pg-s; 26-02-2007; 17-09-2007
SACHTLEBEN CHEMIE: "Kaocal", MATERIAL SAFETY DATA SHEET, 31 January 1995 (1995-01-31), pages 1, XP003023148

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108722697A (en) * 2018-06-25 2018-11-02 丰汉电子(上海)有限公司 A kind of mould release nozzle
CN109093071A (en) * 2018-09-20 2018-12-28 天长市兴宇铸造有限公司 A kind of casting of traction seat and treatment process
CN115533065A (en) * 2022-10-10 2022-12-30 重庆力劲机械有限公司 Cold chamber die casting cavity release agent spraying system and method

Also Published As

Publication number Publication date
EP1862239B1 (en) 2016-06-29
EP2272606A1 (en) 2011-01-12
DE202006020839U1 (en) 2010-06-10
ES2593037T3 (en) 2016-12-05

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