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Machining process of seal ring for automobile

A preparation process and sealing ring technology, which is applied in the field of preparation process of automotive sealing rings, can solve problems such as restricting the development of the automobile industry, high manufacturing costs, and easy cracks in mold release, so as to achieve reasonable raw materials and formulas, high pass rate, The effect of stable product performance

Inactive Publication Date: 2013-06-19
QINGDAO WENSHENG AUTOMOBILE COMPONENTS & PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the rubber parts for brake master cylinders of domestic passenger cars all rely on imports, resulting in high automobile manufacturing costs and seriously restricting the development of the domestic automobile industry. The mold is easy to crack and degumming will occur in the 150 □ brake fluid, and the performance is very unstable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A preparation process for an automotive sealing ring, comprising the steps of:

[0015] (1) Weighing: Weigh the raw materials for making automotive sealing rings;

[0016] (2) Mixing: Put the raw materials weighed in step (1) into the mixer for mixing, the spindle speed of the mixer is 100r / min, and the mixing time is set to 10-15min;

[0017] (3) Molding: put the mixed raw materials in step (2) into the mold of the injection machine with the set size for vulcanization molding, set the vulcanization temperature at 150-180°C, the mold pressure at 1.2-1.5Mpa, and the vulcanization time at 10~20min;

[0018] (4) Demolding: After forming in step (3), a sealing ring rubber tube with a set size is obtained;

[0019] (5) Cutting: Cut the rubber tube of the sealing ring into a sealing ring of suitable size according to the size requirements of the sealing ring at different positions on the car.

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Abstract

The invention discloses a preparation process of a seal ring for an automobile. The machining process is characterized by comprising the following steps: (1) weighing: weighing raw materials for manufacturing a seal ring for the automobile; (2) mixing: mixing the raw materials weighed in the step (1) in a mixing machine, wherein the rotation speed of a spindle of the mixing machine is 100r / min, and the mixing time is 10-15min; (3) shaping: placing the raw materials mixed in the step (2) in a die of an injection machine in a set size to vulcanize shaping, wherein the vulcanization temperature is set to be 150-180 DEG C, the die pressure is 1.2-1.5Mpa, and the vulcanization time is 10-20min; (4) demoulding: obtaining a seal ring rubber tube with a set size through the shaping treatment of the step (3); (5) cutting the seal ring rubber tube into the seal ring with proper size according to the size requirement of the seal rings on different positions of the automobile. The labor time is greatly shortened, the labor intensity of the worker is lightened, and the production efficiency is improved.

Description

technical field [0001] The invention relates to a sealing ring, in particular to a preparation process of a sealing ring for an automobile. Background technique [0002] The car brake master cylinder uses the principle of incompressibility of liquid to convert the mechanical pressure on the pedal of the driver into hydraulic pressure, which is transmitted to the brakes of the four wheels to slow down or stop the car, so it plays an extremely important role in the braking system. important role. The central valve sealing ring for the car brake master cylinder is one of the key rubber parts in the car brake master cylinder. It is located on the piston, and through its control in the braking state, it can cut off the passage of the brake chamber and the liquid supply chamber. ; In the state of brake release, through its control, the brake fluid can be compensated to the brake chamber. That is, the sealing effect of the central valve sealing ring for the brake master cylinder...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/00B29C35/00B29L31/26
Inventor 吕玲霞
Owner QINGDAO WENSHENG AUTOMOBILE COMPONENTS & PARTS
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