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Metal-rubber composite gland bush molding die and molding method thereof

A technology for compounding gaskets and forming molds, which is applied to household appliances, other household appliances, household components, etc., can solve the problems of difficult sealing, difficulty in designing a mold taking space, and difficulty in taking product molds, and achieves simple structure and low cost. , the effect of easy removal

Active Publication Date: 2009-09-09
AEROSPACE RES INST OF MATERIAL & PROCESSING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002]Cryogenic valves, gas cylinders and other components (such as liquid hydrogen and liquid oxygen valves) used in launch vehicle rocket bodies often adopt threaded connection structure, which is simple, compact and economical Space, easy installation, but the sealing problem here has always been a problem
[0004] Existing compression molds, for metal and rubber composite products, due to the thin metal skeleton (1 ~ 2mm), the structure of the mold is not easy Design the mold taking space, and there is a certain adhesion between the rubber material and the mold after vulcanization, which makes it difficult to take the mold of the product

Method used

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  • Metal-rubber composite gland bush molding die and molding method thereof
  • Metal-rubber composite gland bush molding die and molding method thereof
  • Metal-rubber composite gland bush molding die and molding method thereof

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Experimental program
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Embodiment Construction

[0030] Such as figure 1 As shown, the metal-rubber composite gasket forming mold includes an upper core plate 1, an upper platen 2, a lower core plate 5, a positioning gasket 3 and a lower platen 4, and the central cylindrical section of the upper core plate 1 is installed in the center hole of the upper platen 2 Inside, the central cylindrical section of the lower core plate 5 is installed in the center hole of the lower pressing plate 4, and a positioning washer 3 is installed between the upper pressing plate 2 and the lower pressing plate 4.

[0031] The metal skeleton 12 of the metal-rubber composite gasket is placed in the cavity formed by the upper core plate 1, the upper platen 2, the lower platen 4, the positioning gasket 3 and the lower core plate 5, the positioning gasket 3, the upper platen 2 and the lower platen The mating surfaces among the 4 are at an inclination angle of 15° to 20°, which is convenient for disassembly.

[0032] During the vulcanization molding ...

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Abstract

The invention relates to a metal-rubber composite gland bush molding die which comprises an upper core plate, an upper pressure plate, a positioning gasket, a lower pressure plate and a lower core plate. Central columns of the upper core plate and the lower core plates are installed in central holes of the upper pressure plate and the lower pressure plate. The positioning gasket is installed between the upper pressure plate and the lower pressure plate. A metal frame of a metal-rubber composite gland bush is arranged in a die cavity combined by the upper core plate, the lower core plate, the upper pressure plate, the lower pressure plate and the positioning gasket. A matching surface between the positioning gasket, the upper pressure plate and the lower pressure plate has a slope angle of 15 degrees to 20 degrees. The molding die adopts a combination type, so that the molding die is convenient for demounting and the metal-rubber composite gland bush can be taken out very conveniently. The molding die is provided with the split positioning gasket, thereby ensuring that the metal-rubber composite gland bush is convenient for taking out when being positioned and ensuring that the molded metal-rubber composite gland bush can be convenient for taking out. The molding mould has simple structure, convenient manufacturing and low cost. A molding method for molding the metal-rubber composite gland bush has very good effect.

Description

technical field [0001] The invention relates to a molding method and molding method of a metal-rubber composite sealing gasket, belonging to the technical field of rubber molding technology and mold design. Background technique [0002] Cryogenic valves, gas cylinders and other components (such as liquid hydrogen and liquid oxygen valves) used in launch vehicle rocket bodies often adopt a threaded connection structure, which is simple, compact, space-saving, and easy to install, but the sealing problem here has always been a problem . [0003] At present, soft metal gaskets (such as aluminum gaskets, copper gaskets, etc.) are generally used as seals for sealing. There is a possibility of leakage when sealing at room temperature. The shrinkage rate is large, and the deformation cannot be recovered after returning to normal temperature, so it causes the problem of static seal leakage during the retest at normal temperature. The metal-rubber composite gasket is composed of a ...

Claims

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Application Information

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IPC IPC(8): B29C33/30B29C33/44B29C43/36B29L31/26
Inventor 陈风波田新王立峰谢小兵
Owner AEROSPACE RES INST OF MATERIAL & PROCESSING TECH
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