CA2315600A1 - Method of producing rubber/metal components - Google Patents

Method of producing rubber/metal components Download PDF

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Publication number
CA2315600A1
CA2315600A1 CA002315600A CA2315600A CA2315600A1 CA 2315600 A1 CA2315600 A1 CA 2315600A1 CA 002315600 A CA002315600 A CA 002315600A CA 2315600 A CA2315600 A CA 2315600A CA 2315600 A1 CA2315600 A1 CA 2315600A1
Authority
CA
Canada
Prior art keywords
rubber
metal part
mold
approximately
forming
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.)
Abandoned
Application number
CA002315600A
Other languages
French (fr)
Inventor
Andreas Jager
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.)
Jaeger Gummi GmbH and Co KG
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2315600A1 publication Critical patent/CA2315600A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16Making multilayered or multicoloured articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/007Semi-solid pressure die casting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00Casting in, on, or around objects which form part of the product
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00Casting in, on, or around objects which form part of the product
    • B22D19/04Casting in, on, or around objects which form part of the product for joining parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D21/00Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
    • B22D21/002Castings of light metals
    • B22D21/007Castings of light metals with low melting point, e.g. Al 659 degrees C, Mg 650 degrees C
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16Making multilayered or multicoloured articles
    • B29C2045/1696Making multilayered or multicoloured articles injecting metallic layers and plastic material layers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

A method of producing rubber/metal components is provided. The rubber is injected into a mold chamber that contains the metal part, and the rubber is cured (vulcanized) in this mold chamber. The mold chamber also serves for the forming of the metal part, which remains in its mold chamber for the forming of the rubber.

Description

METHOD OF PRODUCING RUBBER/METAL COMPONENTS
Background of The Invention The present invention relates to a method of producing rubber/metal components.
Within the context of the instant application, the term "rubber"
designates not only natural and synthetic rubber, but also elastomeric polymeric materials, such as TPE (thermoplastic elastomers). In addition, within the context of the present invention rubber/metal components are such components where the rubber is frictionally and/or positively, preferably however adhesively, connected with the metal part.
Such components generally have a metal part because the latter serves for the fastening and/or the securement of the component. Thus, for example, it is possible to use such a component for, for example, seals, vibration dampeners, reinforced profiled members, bellows, etc.
Pursuant to heretofore known methods, in order to produce such a rubber/metal component, the metal part is first separately manufactured, for example by stamping, bending, or by machining steps.
The thus-produced elements are generally supplied to the rubber processors, which in turn generally utilize the metal part as an insert for a mold cavity or chamber in order to then form the rubber and thereby also effect a connection to the metal part.
Aside from the fact that with this known process not inconsiderable problems with logistics can result, prior to being inserted into the mold DE 199 38 015.5 of 11 August 1999 - Canada chamber the metal parts must be prepared, for example by deburing and degreasing.
It is therefore an object of the present invention to avoid the aforementioned drawbacks. A method is desired that enables a common production of the constituents of the component and their combination.
Brief Description of the Drawing This object, and other objects and advantages of the present invention, will appear more clearly from the following specification in conjunction with the accompanying schematic drawing, in which:
Fig. 1 is a vertical cross-sectional view, in the starting position, of one exemplary embodiment of an inventive tool for producing rubber/metal components, for example a bumper, as a sequencing tool; and Fig. 2 - 4 each illustrate the tool of Fig. 1, but in different process steps.
Summary of The Invention The method of the present invention is characterized primarily in that the mold cavity or chamber that is used for producing the rubber part is also used for forming the metal part, which remains in its mold chamber for the forming of the rubber or rubber-like polymeric material. Thus, the metal part is formed in the mold chamber in which later, in order to DE 199 38 015.5 of 11 August 1999 - Canada complete a component, the rubber is formed and is also cured, which within the context of the present invention refers to hardening or setting of the material, for example in the case of a thermoplastic elastomer, or vulcanizing of the material, as appropriate. In this connection, to form the rubber, and to form the metal part, the injection molding process is expediently relied upon because it ensures a rapid and true to form manufacture.
The inventive method also leads to the recovery of heat. This is in particular the case if the two injection processes follow one another closely in time in such a way that the heat for vulcanization is applied at least partially from the cooling off of the metal part. For this reason, it is also advantageous to utilize so-called sequencing tools, in other words to utilize mold chambers that are disposed, for example, in a carousel-like manner and that ensure a rapid sequence of operation of the two injection processes.
In order to preclude operational steps between the two injection processes, it is advantageous to add adhesive to the elastomer that is to be injected if the elastomeric material is to be adhesively secured to the metal part.
To carry out the inventive process, metallic alloys are particularly suitable where at ambient temperatures they have dendritic structures, and when heated up have a semi-solid aggregate state with thixotropic DE 199 38 015.5 of 11 August 1999 - Canada properties. Alloys of this type can contain: approximately 90-95% Mg, approximately 5-9% AI, as well as Zn, Mn, Si, Cu, Ni, Fe, and the like, respectively in concentrations below about 1 %.
Further specific features of the present invention will be described in detail subsequently.
Description of Preferred Embodiments Referring now to the drawing in detail, the lower portion 1 of the tool or die is pivotable about its central axis 2 in respective steps of 180°.
At diametrically opposed locations the lower portion 1 is provided with mold cavities or chambers 3, 4, each of which has associated therewith an upper portion 5 as a cover, with the two upper portions having different penetration depths into the mold chambers. In addition, the upper portions 5 are provided with funnels 6 having feed bores 7 for the injection of material. The pivotable mounting of the lower portion 1 and the mechanisms for closing off the mold chambers 3, 4 have not been illustrated. Such devices and mechanisms can have any desired conventional configuration. The lower portion 1 is furthermore provided with ejectors 8 for the finished workpieces.
The article, for example a bumper, that is to be produced comprises a lower metal plate 9 having two downwardly extending legs 10 for the mechanical securement of the bumper, for example on a frame;
the article furthermore comprises a rubber plate 11 that is fixedly, for DE 199 38 015.5 of 11 August 1999 - Canada example adhesively, disposed on the metal plate 9.
In the starting position of the tool shown in Fig. 1, it is presumed that the metal component in the form of the metal plate with the legs 10 has already been introduced into the mold cavity 3.
Pursuant to Fig. 2, a rubber to which has been added an adhesive is now injected into the mold chamber 3 to form the plate 11. The injection process is followed by vulcanization. At the same time as the injection of the rubber, there is introduced into the mold cavity 4 the following still specified metal alloy with the aid of a 2-K injection machine to form the metal plate 9 having the legs 10. In so doing, heat flows to the mold cavity 3, thereby enhancing the vulcanization process.
As show in Fig. 3, after conclusion of the vulcanization the finished rubber/metal component, after raising the cover 5, is ejected in the direction of the arrows 12. At the same time, the cover 5 of the mold chamber 4 is also raised.
;the lower portion 1 is then pivoted into the position shown in Fig.
4, and after the mold chambers 3, 4 are closed the starting position shown in Fig. 1 is again achieved.
In this connection, it is important that the covers 5, which penetrate to different depths, do not follow the pivoting of the lower portion 1.
Although the method of the present invention is, in principle, not bound to specific materials, nonetheless the metal part 9, 10 is preferably DE 199 38 015.5 of 11 August 1999 - Canada H
produced as a magnesium base via the "Thixo-molding" process from a magnesium alloy utilizing the injection molding or die-casting process.
Particularly suitable for this purpose is an alloy comprising approximately 90% Mg, 9% AI and approximately 1 % Zn. This alloy has a solidus temperature of about 465° C, and a liquidus temperature of about 596°
C, as well as a desired temperature range of about 580-590°C for the processing. During injection of the alloy, the tool or die has a temperature of about 200-250°C. In contrast, the vulcanization temperatures for rubber elastic material is about 160-190°C.
It should be noted that with the tool shown in the drawing, the mold chamber sequence is effected by a pivoting movement of the tool about a preferably vertical axis. However, it is to be understood that other sequence constructions, for example via a linear movement of the tool, are also possible, whereby also in such a situation it is expedient to provide a temperature influence of the mold chambers in the manner previously discussed.
The specification incorporates by reference the disclosure of German priority document 199 38 015.5 of 11 August, 1999.
The present invention is, of course, in no way restricted to the specific disclosure of the specification and drawing, but also encompasses any modifications within the scope of the appended claims.
DE 199 38 015.5 of 11 August 1999 - Canada

Claims (10)

1. A method of producing a rubber/metal component, including the steps of:
forming a metal part in a mold chamber;
forming rubber on said metal part in said mold chamber;
and curing said rubber in said mold chamber.
2. A method according to claim 1, wherein both of said steps of forming a metal part and forming rubber are effected pursuant to an injection molding process.
3. A method according to claim 2, wherein said two injection molding steps follow one another in a close time relationship such that heat for curing is applied at least partially via cooling off of said metal part.
4. A method according to claim 2, which includes the step of adding adhesive to said rubber prior to injection thereof.
5. A method according to claim 1, wherein a metallic alloy is used for said metal part, said alloy having a dentritic structure at ambient temperature, and when heated up having a semi-solid aggregate state with thixotropic properties.
6. A method according to claim 5, wherein said metallic alloy contains approximately 90-95% Mg, approximately 5-9% Al, as well as Zn, Mn, Cu, Ni, Fe, and the like in concentrations in each case of less than about 1%.
7. A method according to claim 6, wherein said metallic alloy contains approximately 90% Mg, approximately 9% AL, and approximately 1 % Zn.
8. A method according to claim 2, wherein said metal part has a magnesium base, and wherein said injection is carried out according to the "Thixo-molding" process using a magnesium alloy.
9. An apparatus for carrying out the method of claim 1, which includes a lower portion in which said mold chambers are provided, wherein said mold chambers are metallically connected by said lower portion in a heat-conducting manner.
10. An apparatus for carrying out the method of claim 1, wherein said apparatus is a sequencing tool that is provided with at least two mold chambers, wherein a metal part is adapted to be formed in one of said mold chambers while practically simultaneously a rubber part is adapted to be formed in another one of said mold chambers.
CA002315600A 1999-08-11 2000-08-11 Method of producing rubber/metal components Abandoned CA2315600A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19938015A DE19938015A1 (en) 1999-08-11 1999-08-11 Process for the production of rubber-metal components
DE19938015.5 1999-08-11

Publications (1)

Publication Number Publication Date
CA2315600A1 true CA2315600A1 (en) 2001-02-11

Family

ID=7918030

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002315600A Abandoned CA2315600A1 (en) 1999-08-11 2000-08-11 Method of producing rubber/metal components

Country Status (3)

Country Link
EP (1) EP1075920A1 (en)
CA (1) CA2315600A1 (en)
DE (1) DE19938015A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106026489A (en) * 2015-03-30 2016-10-12 西门子公司 Machine component of electric machine and method for production thereof

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3713337B2 (en) * 1996-08-09 2005-11-09 臼井国際産業株式会社 Plastic fan
SE527681C2 (en) 2003-12-02 2006-05-09 Polyzink Ab Method and apparatus for making a composite body
CN102615269B (en) * 2011-02-01 2015-08-19 昶联金属材料应用制品(广州)有限公司 Manufacture the method and the device that comprise the housing of plurality of metal
DE102011101956A1 (en) * 2011-05-19 2012-11-22 Gebr. Krallmann Gmbh Method for injection-molding multi-component e.g. switch used in e.g. electrical industry, involves injection-molding a metal component onto base portion
DE102012007547A1 (en) * 2012-04-14 2013-10-17 Volkswagen Aktiengesellschaft Method for producing metal-plastic component used in motor vehicle e.g. passenger car, involves feeding plastic melt into second cavity formed between first and third mold sections so as to form plastic component
CN103213246B (en) * 2013-04-17 2016-06-22 宁国市海天力工业发展有限公司 Rubber diaphragm of automobile brake chamber preparation method and device
DE102014007211A1 (en) 2014-05-19 2015-11-19 Kraiburg Tpe Gmbh & Co. Kg Thermoplastic elastomer compositions with adhesion to metallic surfaces
CN107252884A (en) * 2017-08-14 2017-10-17 黑龙江省明启复合材料有限公司 A kind of big thickness bi-metal composite panel of large area and preparation method thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB980554A (en) * 1960-07-26 1965-01-13 Borg Warner Method of fabricating an electrical terminal board
DE3008766A1 (en) * 1980-03-07 1981-09-24 Diehl GmbH & Co, 8500 Nürnberg METHOD FOR VULCANIZING A MIXTURE OF RUBBER AND / OR PLASTIC ON METAL
JP3236394B2 (en) * 1993-02-26 2001-12-10 株式会社日本製鋼所 Injection molding method and multi-material molding

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106026489A (en) * 2015-03-30 2016-10-12 西门子公司 Machine component of electric machine and method for production thereof
CN106026489B (en) * 2015-03-30 2018-11-20 西门子公司 The machine component of motor and its manufacturing method

Also Published As

Publication number Publication date
DE19938015A1 (en) 2001-02-15
EP1075920A1 (en) 2001-02-14

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