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Rubber compositions for oil seal of rubber framework and method for manufacturing same

A technology of rubber composition and skeleton oil seal, which is applied in the field of rubber sealing components, can solve the problems of low labor productivity, poor benefit, high production cost, etc., and achieve the effect of reasonable raw material ratio and simple process

Inactive Publication Date: 2008-12-31
青岛茂林橡胶制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented new type of oil seals for use on engines used during highway driving have several technical benefits compared to previous designs such as being more reliable but less expensive or requiring higher maintenance costs due to their rubber-based material. These improvements result from its wider applicability across different types of vehicles' drive systems (cranks).

Problems solved by technology

Technological Problem: Current methods for producing rubber component parts such as oils or greases have limitations when it comes into contact with heavy loads during use over longer periods (such as those caused by vibrations). These issues result from insufficient heat tolerance and lacking stability under severe conditions that may occur throughout their lifespan.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Embodiment 1: A kind of rubber composition for rubber skeleton oil seal, the component content proportioning of described rubber composition is by weight (the weight unit of the following material parts is kg):

[0046] 26 type fluorine rubber 100

[0047] Acid absorber magnesium oxide 5

[0048] calcium hydroxide 5

[0049] Reinforcing agent carbon black 9

[0050] Barium sulfate 19

[0051] Iron Oxide Red 17

[0052] Operating aid 2

[0053] Vulcanizing agent bisphenol AF 1.5

[0054] Accelerator BPP 0.6

Embodiment 2

[0055] Embodiment 2: A kind of rubber composition for rubber skeleton oil seal, the component content ratio of described rubber composition is by weight (the weight unit of the following material parts is kg):

[0056] Acid absorber magnesium oxide 6

[0057] calcium hydroxide 6

[0058] Reinforcing agent carbon black 11

[0059] Barium sulfate 21

[0060] Iron Oxide Red 19

[0061] Operating aid 3

[0062] Vulcanizing agent bisphenol AF 2

[0063] Accelerator BPP 0.8

Embodiment 3

[0064]Embodiment 3: Utilize the rubber composition of above-mentioned embodiment 1 or 2 components to make the method for rubber skeleton oil seal, concrete steps are:

[0065] The first step, mixing: run the mixing capacity on the XK360 or XK400 open mill with a mixing capacity of 16.5 kg, the roller temperature is from room temperature to 45°C, first adjust the roller distance to below 0.5mm, and put 26 type fluororubber into the open mixer Inner low temperature thin pass 3-5 times, and finally adjust the roller distance to 3-4mm, the roller temperature is below 45°C for the front roller, and below 50°C for the rear roller. After the wrapping roller is flattened, add operation aids, calcium hydroxide, Acid absorbent magnesium oxide, iron oxide red, reinforcing agent carbon black, barium sulfate, and finally add vulcanizing agent bisphenol AF and accelerator BPP, make triangular bags 3-5 times, and finally adjust the roller distance to less than 0.5mm, blanking Thin pass 5-6 ...

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PUM

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Abstract

The invention provides a rubber composite used for rubber framework oil seal and a preparation method thereof. The rubber composite contains(based on weight portions) 100 portions of fluorubber26, 5-6 portions of acid absorber magnesia, 5-6 portions of calcium hydroxide, 9-1 portions of strengthening agent black carbon, 19-20 portions of barium sulphate, 17-19 portions of iron oxide red, 2-3 portions of process additive, 1.5-2 portions of curing ingredient bisphenol AF, and 0.6-0.8 portions of accelerant BPP. The rubber composite improves the tension strength, extensibility, tear resistance, self-lubricating effect, compressive deformation resistance and thermal aging resistance of the rubber framework, makes the rubber framework good in medium resistance and prolongs the service life of the rubber framework oil seal. Meanwhile, the method is simple in process, reasonable in mixture ratio and reduces preparation cost and defective index.

Description

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Claims

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Application Information

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Owner 青岛茂林橡胶制品有限公司
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