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High-temperature-resistant low-creep sealing plate and preparation process thereof

A preparation process and sealing plate technology, which is applied in engine sealing, metal material coating technology, mechanical equipment, etc., can solve the problems of reduced sealing effect, large safety hazards, high maintenance and replacement costs, and achieve the effect of avoiding falling off

Inactive Publication Date: 2021-04-16
JIANGSU SEALSTARS SEALING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there is a problem of insufficient interfacial bonding between the metal substrate and the non-metallic material of the sealing plate currently on the market. The metal material and the non-metallic material of the sealing plate are prone to peeling and aging under high temperature and hot oxygen environment, which will As a result, the pressure on the sealing plate is uneven, and the sealing effect is reduced or disappeared. If it is not handled in time, it will easily cause material leakage, causing serious accidents and irreparable losses.
Ordinary sealing plates have a high creep rate, poor stability and durability of the sealing plate, which poses a great potential safety hazard when used in actual production, and needs to be replaced frequently. The cost of later maintenance and replacement is high, which limits its development

Method used

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  • High-temperature-resistant low-creep sealing plate and preparation process thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A high-temperature-resistant and low-creep sealing plate comprises a modified metal substrate and rubber layers coated on the upper and lower surfaces of the modified metal substrate, and the rubber layer is obtained by drying a rubber compound.

[0048] The modified metal base material includes the following raw material components: in parts by weight, 80 parts of metal base material, 30 parts of silane coupling agent, and 30 parts of 4,4'-diamino-2,2'-bipyridine.

[0049] The rubber compound includes the following raw material components: in parts by weight, 80 parts of polymerization liquid, 30 parts of filler, 100 parts of natural rubber, 120 parts of EPDM rubber, 120 parts of nitrile rubber, 20 parts of paraffin, and 40 parts of sulfur , accelerator 20 parts, stearic acid 40 parts, EDOT 70 parts.

[0050] The polymerization solution mainly includes: 80 parts of 2,7-dibromopyrene-4,5,9,10-tetraketone, 40 parts of bis(1,5-cyclooctadiene) nickel (0), 1,5-cyclooctadien...

Embodiment 2

[0061] A high-temperature-resistant and low-creep sealing plate comprises a modified metal substrate and rubber layers coated on the upper and lower surfaces of the modified metal substrate, and the rubber layer is obtained by drying a rubber compound.

[0062] The modified metal substrate includes the following raw material components: in parts by weight, 90 parts of metal substrate, 40 parts of silane coupling agent, and 40 parts of 4,4'-diamino-2,2,-bipyridine.

[0063] The rubber compound includes the following raw material components: in parts by weight, 90 parts of polymerization liquid, 35 parts of filler, 110 parts of natural rubber, 135 parts of EPDM rubber, 135 parts of nitrile rubber, 25 parts of paraffin, and 65 parts of sulfur , accelerator 25 parts, stearic acid 60 parts, EDOT 75 parts.

[0064] The polymerization liquid mainly includes: 90 parts of 2,7-dibromopyrene-4,5,9,10-tetraketone, 50 parts of bis(1,5-cyclooctadiene) nickel (0), 1,5-cyclooctadiene 60 part...

Embodiment 3

[0075] A high-temperature-resistant and low-creep sealing plate comprises a modified metal substrate and rubber layers coated on the upper and lower surfaces of the modified metal substrate, and the rubber layer is obtained by drying a rubber compound.

[0076] The modified metal substrate includes the following raw material components: in parts by weight, 100 parts of metal substrate, 50 parts of silane coupling agent, and 50 parts of 4,4'-diamino-2,2'-bipyridine.

[0077]The rubber compound includes the following raw material components: in parts by weight, 100 parts of polymerization liquid, 40 parts of filler, 120 parts of natural rubber, 150 parts of EPDM rubber, 150 parts of nitrile rubber, 30 parts of paraffin, and 80 parts of sulfur , accelerator 30 parts, stearic acid 80 parts, EDOT 80 parts.

[0078] The polymerization liquid mainly includes: 100 parts of 2,7-dibromopyrene-4,5,9,10-tetraketone, 60 parts of bis(1,5-cyclooctadiene) nickel (0), 1,5-cyclooctadiene 70 pa...

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PUM

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Abstract

The invention discloses a high-temperature-resistant low-creep sealing plate and a preparation process thereof. The sealing plate comprises a metal base material, and rubber layers coating the upper surface and the lower surface of the modified metal base material, wherein the rubber layers are obtained by airing a rubber mixture. The prepared sealing plate combines the high strength of the metal base material and the high elasticity and compressibility of the rubber layer, and is low in weight, high in sealing performance, excellent in thermal oxidation resistance, high in binding force between the metal base material and the rubber layer, low in creep relaxation rate, wide in application range and high in sealing performance, and peeling and stripping cannot occur even if the sealing plate works in a high-temperature environment for a long time, the application range is wide, and the practicality is high.

Description

technical field [0001] The invention relates to the technical field of sealing plates, in particular to a high-temperature-resistant and low-creep sealing plate and a preparation process thereof. Background technique [0002] The sealing plate is mainly composed of metal materials and non-metal materials. Metal materials are generally used as a rigid skeleton to support the non-metal materials on the surface, while non-metal materials generally have strong flexibility and elasticity to achieve the sealing effect of the sealing energy plate. . The non-metallic materials used to prepare sealing plates mainly include plastics, rubber, asbestos, etc. Plastic materials have poor weather resistance, high brittleness, and are easy to age; while asbestos materials are prone to damage, insufficient sealing, and short service life. Compared with plastic and asbestos materials, rubber materials have certain advantages. [0003] However, there is a problem of insufficient interfacial ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D123/16C09D109/02C09D7/65C09D7/62C23C22/02B05D7/14B05D7/24B05D3/02F16J15/00
Inventor 叶声波冷钢封婷婷
Owner JIANGSU SEALSTARS SEALING TECH CO LTD
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