Surface treatment process for eye joint of brake pipe

A technology of surface treatment and brake pipe, applied in the direction of metal material coating process, etc., can solve the problems of corrosion resistance and wear resistance to be strengthened, and achieve the improvement of corrosion resistance, corrosion resistance and excellent brightness. Effect

Inactive Publication Date: 2015-12-09
NINGBO YADA METAL SURFACE TREATMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the corrosion resistance and wear resistance of the

Method used

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  • Surface treatment process for eye joint of brake pipe
  • Surface treatment process for eye joint of brake pipe
  • Surface treatment process for eye joint of brake pipe

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0056] Example 1:

[0057] Chemical degreasing and ultrasonic degreasing are carried out on the brake pipe ring joint blank made of iron material. The composition and concentration of the chemical degreasing solution are: Presol1700:70ml / L; the temperature of chemical degreasing is 50℃, The time is 10 minutes. The composition and concentration of the solution for ultrasonic degreasing are: COVENPREP121: 15 g / L; the temperature of ultrasonic degreasing is 50° C. and the time is 5 min. Then enter the initial end electrolysis cell for initial end electrolysis, the composition and concentration of the initial end electrolytic electrolyte are: Presol7061: 70g / L; the current density of electrolysis is 1A / dm 2 , the electrolysis temperature is 50℃, and the electrolysis time is 5min. After the initial electrolysis, a water wash was performed, the flow rate was 200L / h, and the time was 10s. After washing with water, pickle with 25% hydrochloric acid for 10 min. After pickling, wash...

Example Embodiment

[0060] Example 2:

[0061]Chemical degreasing and ultrasonic degreasing are carried out on the brake pipe ring joint blank made of iron material. The composition and concentration of the chemical degreasing solution are: Presol1700: 75ml / L; the temperature of chemical degreasing is 55 ℃, The time is 12 minutes. The composition and concentration of the solution for ultrasonic degreasing are: COVENPREP121: 18 g / L; the temperature of ultrasonic degreasing is 55° C. and the time is 6 min. Then enter the primary electrolysis cell for primary electrolysis. The composition and concentration of the primary electrolyte electrolyte are: Presol7061: 75g / L; the current density of electrolysis is 2A / dm 2 , the electrolysis temperature is 55℃, and the electrolysis time is 5min. After the initial electrolysis, a water wash was performed, the flow rate was 200L / h, and the time was 10s. After washing with water, pickle with 28% hydrochloric acid for 12 min. After pickling, wash twice with ...

Example Embodiment

[0064] Example 3:

[0065] Chemical degreasing and ultrasonic degreasing are carried out on the brake pipe ring joint blank made of iron material. The composition and concentration of the chemical degreasing solution are: Presol1700:80ml / L; the temperature of chemical degreasing is 60℃, The time is 13 minutes. The composition and concentration of the solution for ultrasonic degreasing are: COVENPREP121: 20 g / L; the temperature of ultrasonic degreasing is 60° C. and the time is 5 min. Then enter the initial end electrolysis cell for initial end electrolysis. The composition and concentration of the initial end electrolytic electrolyte are: Presol7061: 80g / L; the current density of electrolysis is 3A / dm 2 , the electrolysis temperature is 60℃, and the electrolysis time is 6min. After the initial electrolysis, two water washes were performed, each with a flow rate of 160L / h and a time of 10s. After washing with water, pickle with 30% hydrochloric acid for 13 min. After pickli...

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Abstract

The invention relates to a surface treatment process for an eye joint of a brake pipe. The surface treatment process comprises the steps that a base material is subjected to pretreatment; a protecting layer is formed on the base material; the protecting layer is a zinc layer, and the thickness of the zinc layer is 6-15 micrometers; a passive film layer is formed on the protecting layer; a sealing film layer is formed on the passive film layer. According to the surface treatment process, after the surface treatment is conducted on the eye joint of the brake pipe, the eye joint of the brake pipe is more attractive, the performance such as medium resistance, oxidation resistance and corrosion resistance is better, and the service life is longer.

Description

technical field [0001] The invention relates to a surface treatment process for a joint, in particular to a surface treatment process for a brake pipe ring eye joint. Background technique [0002] With the continuous and rapid development of the national economy and the continuous improvement of people's living standards, great changes have taken place in my country's automobile consumption market since 2002. The private automobile consumption market is even more "blowout" growth. In the face of increasingly fierce market competition, auto parts suppliers are also constantly developing safer and more efficient auto parts with the times. [0003] Among them, the automobile braking system is an important component related to the safety and reliable driving of the whole vehicle and its occupants, and the braking system includes a brake pipe ring eye joint. However, the corrosion resistance and wear resistance of the brake pipe ring eye joint in the prior art need to be streng...

Claims

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Application Information

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IPC IPC(8): C23C22/73
Inventor 董阿能
Owner NINGBO YADA METAL SURFACE TREATMENT
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