EP3701774A1 - Verfahren zum herstellen einer mit mindestens einer lackierung versehenen leiterplatte und lackierkopf zur durchführung des verfahrens - Google Patents
Verfahren zum herstellen einer mit mindestens einer lackierung versehenen leiterplatte und lackierkopf zur durchführung des verfahrensInfo
- Publication number
- EP3701774A1 EP3701774A1 EP18782366.1A EP18782366A EP3701774A1 EP 3701774 A1 EP3701774 A1 EP 3701774A1 EP 18782366 A EP18782366 A EP 18782366A EP 3701774 A1 EP3701774 A1 EP 3701774A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mixer
- circuit board
- rotor
- printed circuit
- dynamic
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
- B05C9/10—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation being performed before the application
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/40—Mixing liquids with liquids; Emulsifying
- B01F23/43—Mixing liquids with liquids; Emulsifying using driven stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/114—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections
- B01F27/1143—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections screw-shaped, e.g. worms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/92—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with helices or screws
-
- 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
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
- B05B1/04—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in flat form, e.g. fan-like, sheet-like
- B05B1/044—Slits, e.g. narrow openings defined by two straight and parallel lips; Elongated outlets for producing very wide discharges, e.g. fluid curtains
-
- 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
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0408—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing two or more liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0091—Apparatus for coating printed circuits using liquid non-metallic coating compositions
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
- H05K3/28—Applying non-metallic protective coatings
- H05K3/284—Applying non-metallic protective coatings for encapsulating mounted components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/2305—Mixers of the two-component package type, i.e. where at least two components are separately stored, and are mixed in the moment of application
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2215/00—Auxiliary or complementary information in relation with mixing
- B01F2215/04—Technical information in relation with mixing
- B01F2215/0413—Numerical information
- B01F2215/0436—Operational information
- B01F2215/0477—Numerical time values
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2215/00—Auxiliary or complementary information in relation with mixing
- B01F2215/04—Technical information in relation with mixing
- B01F2215/0413—Numerical information
- B01F2215/0436—Operational information
- B01F2215/0481—Numerical speed values
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
- B05B13/0405—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation with reciprocating or oscillating spray heads
- B05B13/041—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation with reciprocating or oscillating spray heads with spray heads reciprocating along a straight line
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
- B05C17/00553—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with means allowing the stock of material to consist of at least two different components
- B05C17/00566—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with means allowing the stock of material to consist of at least two different components with a dynamic mixer in the nozzle
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09818—Shape or layout details not covered by a single group of H05K2201/09009 - H05K2201/09809
- H05K2201/09872—Insulating conformal coating
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09818—Shape or layout details not covered by a single group of H05K2201/09009 - H05K2201/09809
- H05K2201/0989—Coating free areas, e.g. areas other than pads or lands free of solder resist
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/01—Tools for processing; Objects used during processing
- H05K2203/0104—Tools for processing; Objects used during processing for patterning or coating
- H05K2203/0126—Dispenser, e.g. for solder paste, for supplying conductive paste for screen printing or for filling holes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/13—Moulding and encapsulation; Deposition techniques; Protective layers
- H05K2203/1333—Deposition techniques, e.g. coating
- H05K2203/1366—Spraying coating
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/15—Position of the PCB during processing
- H05K2203/1509—Horizontally held PCB
Definitions
- the present invention relates to a method for producing a printed circuit board provided with at least one coating and to a painting head for this purpose.
- Protective coatings for printed circuit boards are known per se, they protect the printed circuit boards against moisture, and mechanical stress, improve the heat dissipation and allow shorter distances between circuit elements in terms of explosion protection.
- Solvent-based paint systems are established for this purpose. As a substitute for such systems are two-component systems, for example
- the method according to the invention for producing a printed circuit board provided with at least one coating comprises at least the following steps:
- a dynamic mixer the mixing effect is achieved by a movement of a mixer body, for example a rotation of a rotor.
- a static mixer the mixture is already achieved by flowing around a non-moving mixer body, such as helical rods with sections of alternating helicity.
- mixer bodies that are to some extent suitable for static mixers are additionally moved in order to improve the mixing effect. Both the static-dynamic mixer and the dynamic mixer require a motor to drive the mixer body.
- the mixer has a motor and a rotor, wherein the motor drives the rotor that the rotor at a speed of not less than 500 U / min, further not less than 1000 U / min, for example not less than Rotates 2000 rpm and in particular not less than 3000 rev / min.
- a mixer with the above properties allows a sufficiently homogeneous mixture of the components in a short time, so that a lacquer can be applied, which is homogeneous on the one hand after curing and on the other hand when applied to the circuit board toughness below 200 pPaS, in particular not more than 100 pPaS. These conditions are achieved, although the paint system is preferably solvent-free.
- the dispensing unit dispenses the lacquer mixture with a cross-sectional area which is not more than 1%, for example not more than 0.3%, in particular not more than 0.1% of the area of the printed circuit board.
- the dispensing unit gives the lacquer mixture with a cross-sectional area whose longest extent is not more than one third, for example not more than one sixth and in particular not more than one-eighth the square root of the surface of the printed circuit board. In this way, the spatial resolution of the paint job is sufficient
- the mixer including the motor and the output unit and possibly other components such as valves and their valve drive, which are moved together relative to the circuit board, have a total mass of not more than 1, 5 kg, in particular not more than 1 kg on.
- the stated mass limits ensure that the acceleration forces remain limited during painting, so that vibrations from the circuit boards can be kept away with little effort.
- the rotor has a mixer spiral, in particular with sections of alternating helicity.
- the rotor has mixing elements and rotates with respect to a stator.
- the mixer has a substantially cylindrical mixing chamber, in which the rotor is arranged, wherein the mixer chamber has an inner diameter which is not less than 4% and not more than 20% of the length of the rotor, wherein the mixer is a static-dynamic mixer.
- the first component and the second component are supplied to the mixer from storage containers via flexible lines. This has the advantage that the reservoir does not need to be accelerated with the mixer relative to the circuit board. According to one embodiment of the invention, the residence time in the
- Mixer introduced components until the completion of the dynamic mixing process on average not more than 100 sec, for example not more than 40 sec, in particular not more than 20 sec.
- the mixer has a mixing volume which extends from the place of entry of the components in the mixer to the place of completion of the dynamic mixing process and is filled with the components or the paint mixture; an output port of the dispensing unit at which the varnish mixture is dispensed is no more than five times, in particular not more than twice, the third root of the mixed volume from the location of completion of the dynamic mixing operation.
- the mixer has a mixing volume which extends from the place of entry of the components in the mixer to the place of completion of the dynamic mixing process and is filled with the components or the paint mixture; wherein the filled with the paint mixture volume between the output opening of the output unit, where the paint mixture is output, and the place the completion of the dynamic mixing process is not more than four times, in particular not more than twice the mixing volume.
- the described, compact construction of the device also contributes to the fact that the residence time of the paint mixture after the completion of the mixing process is so low that the paint mixture is still issued with sufficiently low viscosity.
- the output unit has a jet valve, a dispenser, or a curtain nozzle.
- the output unit and or the mixer are temperature-controlled, in particular heatable.
- a painting head according to the invention for painting printed circuit boards, in particular according to the method of the invention, comprises a mixer dynamic or static-dynamic mixer with at least two components feeds; and an output unit connected to the mixer in such a manner that, during painting, the mixer is to be moved together with the dispensing unit over a printed circuit board to be painted so that the mixer experiences the same accelerations as the dispensing unit, wherein the mixer comprises a motor and a rotor, wherein the motor drives the rotor, that the rotor at a speed of not less than 500 U / min, further not less than 1000 U / min, for example not less than 2000 U / min and especially not less than 3000 U / min.
- the painting head according to claim including further components which are connected to the mixer so that they must be moved during painting together with the mixer, a mass of not more than 1, 5 kg, in particular not more than 1 kg ,
- Such further components may include, for example, valves, in particular needle valves, and their actuators, for example pneumatic actuators.
- Printed circuit boards and 2: a schematic representation of an embodiment of a
- printed circuit boards 11, 12, 13 are moved by means of a conveyor belt, not shown here in the conveying direction by a painting.
- the first circuit board 1 1 is already finished in surface segments 21; while the second circuit board 12 is being processed.
- a first surface segment 22 is completed while a second surface segment is being painted. During paint application, the circuit boards are not moved.
- the painting is carried out by means of a painting head 100 according to the invention which is moved by means of a stepping motor driven positioning system 200 in an X-Y plane parallel to the circuit board.
- the positioning system 200 is here indicated only with a degree of freedom in the Y direction, it is known to a person skilled in the production automation, and need not be explained in detail here.
- the painting head 100 and the positioning system are controlled by a computer unit 220.
- the paint system used is a solvent-free two-component system, in particular a polyurethane, wherein the first component comprises an isocyanate and the second component comprises a bifunctional alcohol.
- a solvent-free two-component system in particular a polyurethane, wherein the first component comprises an isocyanate and the second component comprises a bifunctional alcohol.
- epoxy resin systems with an epoxy resin and a hardener as components or two-component silicone systems, one component containing a catalyst.
- the exemplary embodiment of a painting head 100 according to the invention shown schematically in FIG. 2 comprises a mixer 120, which here comprises a static-dynamic spiral mixer or screw mixer.
- mixers comprise a cylindrical conical piston 122 conically tapering at an outlet end and having inside it a mixer chamber in which there is a mixer helix 124 or segments with segments of alternating helicity.
- Such mixers are available, for example, from Nordson.
- a piston head 123 is placed on the mixer piston.
- the mixer piston 122 and the mixer spiral 124 can be designed as consumables which, after a few hours of operation, are designed exchange is.
- the mixer coil 124 has at its upper end, which faces away from the outlet end of the mixer piston, a receiving opening 125 for a complementary engagement means at the lower end of a drive shaft 126 of an electric motor 127, with which the mixer coil at a speed of, for example, 4500 to 5000 U / min is driven.
- the piston head 123 has a central axial bore into which one or both of the rotating components 124, 126 protrude.
- the piston head 123 also has connections for supply lines 130, 131, through which the two components of the paint system are supplied.
- the supply may be controlled with needle valve blocks 128, 129 disposed on the piston head 123.
- the supply lines 130, 131 are connected to reservoirs, not shown here, from which the components are pumped with pumps, in particular toothed belt pumps or other metering pumps.
- the supply lines 130, 131 are sufficiently long, so that the painting head 1000 when painting on the
- Circuit boards can be moved without interference, without a movement of the reservoir is required.
- an output device is arranged, here a curtain nozzle 140 with an output width of the paint curtain of about 8mm.
- an additional valve (not shown here) may optionally be provided in order to realize the paint output with shorter control times.
- the components of the painting head 100 are held in a frame 150, which in particular has a light metal.
- the total weight of the Lackierkopfes 100 is not more than 1 kg.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Coating Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017124665.7A DE102017124665A1 (de) | 2017-10-23 | 2017-10-23 | Verfahren zum Herstellen einer mit mindestens einer Lackierung versehenen Leiterplatte und Lackierkopf zur Durchführung des Verfahrens |
| PCT/EP2018/076292 WO2019081154A1 (de) | 2017-10-23 | 2018-09-27 | Verfahren zum herstellen einer mit mindestens einer lackierung versehenen leiterplatte und lackierkopf zur durchführung des verfahrens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3701774A1 true EP3701774A1 (de) | 2020-09-02 |
Family
ID=63762487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18782366.1A Withdrawn EP3701774A1 (de) | 2017-10-23 | 2018-09-27 | Verfahren zum herstellen einer mit mindestens einer lackierung versehenen leiterplatte und lackierkopf zur durchführung des verfahrens |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20210178419A1 (de) |
| EP (1) | EP3701774A1 (de) |
| DE (1) | DE102017124665A1 (de) |
| WO (1) | WO2019081154A1 (de) |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3923253A (en) * | 1974-05-21 | 1975-12-02 | Grefco | Spraying nozzle |
| US5017409A (en) * | 1988-06-13 | 1991-05-21 | Union Carbide Chemicals And Plastics Technology Corporation | Method of conformal coating |
| US5332763A (en) * | 1992-07-10 | 1994-07-26 | Miles Inc. | Stable dispersions and their use in the preparation of polyurethane foams |
| US5549384A (en) * | 1995-05-15 | 1996-08-27 | Reynolds; Augustus T. | Mixer with helically extending blades |
| FR2740608B1 (fr) * | 1995-10-25 | 1997-12-19 | Giat Ind Sa | Procede pour deposer un revetement de protection sur les composants d'une carte electronique |
| US6132809A (en) * | 1997-01-16 | 2000-10-17 | Precision Valve & Automation, Inc. | Conformal coating using multiple applications |
| US6097271A (en) * | 1997-04-02 | 2000-08-01 | Nextronix Corporation | Low insertion phase variation dielectric material |
| DE20219752U1 (de) * | 2002-12-19 | 2003-02-27 | Ernst Muehlbauer Gmbh & Co Kg | Vorrichtung zum Ausgeben einer gemischten Mehrkomponentenmasse |
| ATE495814T1 (de) * | 2005-09-13 | 2011-02-15 | Bayone Urethane Systems Llc | Dynamischer schneckenmischer und diesen verwendende mischvorrichtung und mischverfahren |
| US8070018B2 (en) * | 2006-03-31 | 2011-12-06 | Hewlett-Packard Development Company, L.P. | Viscoelastic liquid flow splitter and methods |
| US20080149023A1 (en) * | 2006-12-21 | 2008-06-26 | H.B. Fuller Licensing & Financing, Inc. | Apparatus and system used to apply curable material having selectable density and related methods |
| SI2209561T1 (sl) * | 2007-11-12 | 2011-10-28 | Zhermack Spa | Razpršilna naprava za bikomponentne snovi |
| DE102011082971A1 (de) * | 2011-09-19 | 2013-03-21 | Siemens Aktiengesellschaft | Herstellen einer mit einer Leiterplatten-Schutzbeschichtung versehenen Leiterplatte |
| US20140036616A1 (en) * | 2012-08-04 | 2014-02-06 | Common Sense, Llc | Dispensing and mixing systems |
| US9832902B2 (en) * | 2013-05-31 | 2017-11-28 | Elantas Pdg, Inc. | Formulated resin compositions for flood coating electronic circuit assemblies |
| DE102014211293A1 (de) * | 2014-06-12 | 2015-12-17 | Henkel Ag & Co. Kgaa | Vorrichtung zur Konfektionierung und Auftragung von Kleber |
| US9827539B2 (en) * | 2015-07-31 | 2017-11-28 | Phillip Phung-I Ho | Dynamic mixer head |
| DE102015224997A1 (de) * | 2015-12-11 | 2017-06-14 | Henkel Ag & Co. Kgaa | Verfahren zur Konfektionierung und Auftragung von Klebstoffen |
| US10981185B2 (en) * | 2016-08-13 | 2021-04-20 | Nordson Corporation | Systems and methods for two-component mixing in a jetting dispenser |
-
2017
- 2017-10-23 DE DE102017124665.7A patent/DE102017124665A1/de not_active Withdrawn
-
2018
- 2018-09-27 US US16/758,786 patent/US20210178419A1/en not_active Abandoned
- 2018-09-27 EP EP18782366.1A patent/EP3701774A1/de not_active Withdrawn
- 2018-09-27 WO PCT/EP2018/076292 patent/WO2019081154A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| US20210178419A1 (en) | 2021-06-17 |
| WO2019081154A1 (de) | 2019-05-02 |
| DE102017124665A1 (de) | 2019-04-25 |
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