Method for oxidizing brake master cylinder

A brake master cylinder, anodizing tank technology, applied in anodizing, electrolytic coating, surface reaction electrolytic coating, etc., can solve the problems of increased oxidation cost, high equipment requirements, difficulties, etc., to avoid eutectic silicon protruding, The effect of reducing energy costs and improving hardness

Active Publication Date: 2015-03-25
JIANGSU RUIER LONGDING IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult to meet the requirements of film thickness, roughness and hardness at the same time. The hard oxidation process is used in the prior art. Since hard oxidation usually requires a lower temperature, the requirements for equipment are higher, and the oxidation cost is also high. greatly increase

Method used

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  • Method for oxidizing brake master cylinder
  • Method for oxidizing brake master cylinder
  • Method for oxidizing brake master cylinder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A method for oxidation of a brake master cylinder, comprising the steps of:

[0039] ① Hanging: Insert the two positioning holes on the brake master cylinder into the two titanium metal rods 5 of the hanger, and press the elastic titanium metal sheet 5 on the tail of the master cylinder. The thickness of the titanium metal sheet 5 is 0.5mm-1mm. Using the principle of leverage, due to the longer power arm, the main cylinder can be pressed tightly with a small elastic force. Note that the side with holes at the tail of the main cylinder is facing upwards, so as to facilitate the release of gas during the oxidation process.

[0040] ② Preparation of degreasing agent and degreasing treatment: amino acid 26%, disodium hydrogen phosphate 15%, sodium benzoate 10%, glycerin 16%, citric acid 6%, sodium dodecylbenzenesulfonate 2% and water 25% After mixing, dilute with water at a volume ratio of 4-10%, put the mounted brake master cylinder in the diluent, adjust the pH to 1.5-2....

Embodiment 2

[0045] A method for oxidation of a brake master cylinder, comprising the steps of:

[0046]① Hanging: Insert the two positioning holes on the brake master cylinder into the two titanium metal rods 5 of the hanger, and press the elastic titanium metal sheet 3 on the tail of the master cylinder. The thickness of the titanium metal sheet 3 is 0.5mm-1mm. Using the principle of leverage, due to the longer power arm, the main cylinder can be pressed tightly with a small elastic force. Note that the side with holes at the tail of the main cylinder is facing upwards, so as to facilitate the release of gas during the oxidation process.

[0047] ② Preparation of degreasing agent and degreasing treatment: amino acid 28%, disodium hydrogen phosphate 15%, sodium benzoate 10%, glycerin 16%, citric acid 8%, sodium dodecylbenzenesulfonate 1% and water 22% After mixing, dilute with water at a volume ratio of 4-10%, put the mounted brake master cylinder in the diluent, adjust the pH to 1.5-2.5...

Embodiment 3

[0052] A method for oxidation of a brake master cylinder, comprising the steps of:

[0053] ① Hanging: Insert the two positioning holes on the brake master cylinder into the two titanium metal rods 5 of the hanger, and press the elastic titanium metal sheet 3 on the tail of the master cylinder. The thickness of the titanium metal sheet 3 is 0.5mm-1mm. Using the principle of leverage, due to the longer power arm, the main cylinder can be pressed tightly with a small elastic force. Note that the side with holes at the tail of the main cylinder is facing upwards, so as to facilitate the release of gas during the oxidation process.

[0054] ② Preparation of degreasing agent and degreasing treatment: 32% amino acid, 10% disodium hydrogen phosphate, 12% sodium benzoate, 12% glycerin, 8% citric acid, 1% sodium dodecylbenzenesulfonate and 25% water After mixing, dilute with water at a volume ratio of 4-10%, put the mounted brake master cylinder in the diluent, adjust the pH to 1.5-2....

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Abstract

The invention discloses a method for oxidizing a brake master cylinder, which comprises the following steps of: 1, hanging, namely hanging the brake master cylinder to a rack special for oxidizing the brake master cylinder; 2, performing weak acid oil removal treatment; 3, preparing anode oxidizing tank liquor; 4, performing anode oxidization treatment; and 5, taking out the brake master cylinder, cleaning, and performing enclosed drying treatment. The brake master cylinder treated by the method meets the industrial requirements on quality such as film thickness, roughness, hardness and the like.

Description

technical field [0001] The invention relates to a processing method for a brake master cylinder, in particular to an oxidation method for a brake master cylinder. Background technique [0002] With the rapid development of the automobile industry, people have put forward higher requirements on the reliability and service life of the automobile braking system. There are not only film thickness requirements for the brake master cylinder, but also strict requirements for the roughness and hardness of the master cylinder. AlSi7Mg contains high Si content in aluminum, and the cylinder bore is deep (about 100mm). It is difficult to meet the requirements of film thickness, roughness and hardness at the same time. The hard oxidation process is used in the prior art. Since hard oxidation usually requires a lower temperature, the requirements for equipment are higher, and the oxidation cost is also high. greatly increase. Contents of the invention [0003] The object of the prese...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D11/04C25D11/08C25D11/16
Inventor 吴晓杉
Owner JIANGSU RUIER LONGDING IND CO LTD
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