Rubber material for prestressing ultrahigh pressure jack sealing ring and preparation method for rubber material

A rubber compound and ultra-high pressure technology, applied in the field of rubber compound processing, can solve the problems of high cost, expensive hydrogenated nitrile rubber and chlorohydrin rubber, etc., and achieve suitable elasticity, good wear resistance and low material cost. Effect

Inactive Publication Date: 2012-07-18
HEFEI SHICHUAN ENG MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The usual 41# nitrile rubber formula is inferior to hydrogenated nitrile rubber and chlorohydrin rubber in terms of oil resistance, heat resistance and air tightness, but hydrogenated nitrile

Method used

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  • Rubber material for prestressing ultrahigh pressure jack sealing ring and preparation method for rubber material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1. Raw material preparation:

[0032] Preparation of raw materials for rubber compound:

[0033] Weigh polyurethane rubber 100, silicone rubber 8, fluorine rubber 5, ethylene propylene rubber 3.5, natural rubber 0.8, sulfur 0.4, zinc oxide 0.5, stearic acid 0.4, antioxidant RD 0.3, paraffin wax 3, carbon black N660 23, dibutyl Ester DBP 20, Calcium Carbonate 30, Accelerator DM 3,

[0034] Preparation of raw materials for B rubber compound:

[0035] Weigh one-component homopolychlorohydrin rubber 85, copolychlorohydrin rubber 15, zinc stearate 1, anti-aging agent RD 1, gelatin T-78 0.5, rhine wax 1, carbon black 5, dibutyl ester 5, sulfur 0.5. Accelerator Na-22 1.

[0036] 2. The method for preparing the rubber compound of the prestressed ultra-high pressure jack sealing ring comprises the following steps:

[0037] The first step: Prepare A rubber material and B rubber material respectively

[0038] 1. Preparation of A rubber compound

[0039] (1) Mastication: Star...

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PUM

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Abstract

The invention discloses a rubber material for a prestressing ultrahigh pressure jack sealing ring. The rubber material is formed by mixing a rubber material A and a rubber material B in an equal ratio, wherein the rubber material A consists of the following raw materials in part by weight: 95 to 105 parts of polyurethane rubber, 7 to 9 parts of silicone rubber, 4 to 6 parts of fluororubber, 3 to 4 parts of ethylene propylene rubber, 0.7 to 0.9 part of natural rubber, 0.3 to 0.5 part of sulfur, 0.4 to 0.6 part of zinc oxide, 0.3 to 0.5 part of stearic acid, 0.2 to 0.4 part of antioxidant RD, 3to 4 parts of paraffin, 22 to 25 parts of carbon black N660, 18 to 22 parts of dibutyl phthalate (DBP), 25 to 35 parts of calcium carbonate and 3 to 4 parts of accelerator DM; and the rubber materialB consists of the following raw materials in part by weight: 82 to 87 parts of unary homopolymer of chlorohydrin rubber, 12 to 18 parts of copolymer of chlorohydrin rubber, 1 to 2 parts of zinc stearate, 1 to 3 parts of antioxidant RD, 0.4 to 0.6 part of gum-easy T-78, 1 to 2 parts of rhein wax, 45 to 55 parts of carbon black, 5 to 8 parts of DBP, 0.4 to 0.6 part of sulfur and 1 to 2 parts of accelerator Na-22. The sealing ring prepared from the rubber material has high oil resistance, heat resistance, air tightness, flame retardance and tear resistance and is low in material cost.

Description

technical field [0001] The invention relates to the field of rubber compound processing, in particular to a rubber compound for a prestressed ultra-high pressure jack sealing ring and a preparation method thereof. Background technique [0002] The sealing ring is a vulnerable part of the prestressed jack, and the sealing ring is made of rubber. Therefore, there are special requirements for the formula of the rubber material, and the products are required to have high oil resistance and heat resistance, and at the same time have high air tightness. The usual 41# nitrile rubber formula is inferior to hydrogenated nitrile rubber and chlorohydrin rubber in terms of oil resistance, heat resistance and air tightness, but hydrogenated nitrile rubber and chlorohydrin rubber are expensive and costly; The research and practice of improving heat and airtight performance and saving material cost are of great practical significance. Contents of the invention [0003] The invention pr...

Claims

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Application Information

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IPC IPC(8): C08L75/04C08L83/04C08L23/16C08L7/00C08L27/12C08L71/00C08K13/02C08K3/06C08K3/22C08K3/04C08K3/26C08K5/098
Inventor 刘庆柱张朝根丁煜倩王从华张凯东王从凯朱友武
Owner HEFEI SHICHUAN ENG MACHINERY
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