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Surface treatment process of hub

A surface treatment and hub surface technology, applied in the direction of metal material coating process, etc., can solve the problems of reduced load-bearing capacity, affecting the normal use of the car, easy deformation, etc., to achieve strong impact resistance, good quality of the hub, and strong resistance to deformation Effect

Inactive Publication Date: 2017-02-01
KAIPING ZHONGLV IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when in use, due to the simple structure, its load-bearing capacity is significantly reduced, especially in severe collisions, it is easy to deform, which affects the normal use of the car

Method used

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Embodiment Construction

[0020] The best embodiment of the present invention will be further described in detail below.

[0021] The surface treatment process of the hub comprises the following steps:

[0022] 1. Alkaline treatment: Use alkaline cleaning solution to treat the surface of the wheel hub: soak the wheel hub in alkaline cleaning solution, the pH of the alkaline cleaning solution is 10-13, the temperature is 30-60°C, and the time is 30 seconds- 10 minutes; the alkaline cleaning solution is an alkaline aqueous solution mixed with an alkaline auxiliary agent, an organic auxiliary agent and a chelating agent.

[0023] The pH of the alkaline cleaning solution is 11 to 12.5, and the erosion amount is set to 0.1 to 10 g / m 2 .

[0024] 2. Water washing: Submerge the wheel hub 1 in clean water, the temperature of the water is 40-50°C, and the time is 7-8 minutes;

[0025] 3. Degreasing: Use tank immersion method, use KL-13 type degreasing and derusting additive treatment (the additive is white p...

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PUM

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Abstract

The invention discloses a surface treatment process of a hub. The surface treatment process comprises the steps of 1, alkaline treatment: treating the surface of the hub through adopting an alkaline cleaning fluid, soaking the hub in the alkaline cleaning fluid to be treated for 30 seconds to 10 minutes at the temperature of 30 to 60 DEG C; 2, water washing; 3, degreasing: treating the hub through adopting a tank leaching method with a KL-13 degreasing derusting additive for 5 to 10 minutes at the temperature higher than 5 DEG C, wherein during utilization, the ratio of the KL-13 degreasing derusting additive to water is 2%; the PH value of a tank solution is 7; 4, water washing; 5, acidic derusting: treating the hub through adopting the tank leaching method with an acidic derusting liquid for 3 to 8 minutes at the temperature of 40 to 50 DEG C, wherein the formula of the acidic derusting liquid is that the acidic derusting liquid comprises technical hydrochloric acid with the concentration of 31% and 3% of a corrosion inhibitor; 6, water washing; 7, phosphating: carrying out phosphating on the surface of the hub through adopting the tank leaching method with a zinc series phosphating solution, wherein a phosphating agent is divided into an A agent-tank solution preparation agent, a B agent-additive and a C agent-accelerant; and 8, water washing. According to the surface treatment process, the hub is high in strength, good in toughness, good in quality, high in processing precision, not liable to deform and high in impact resistance, and the popularization of a product is facilitated.

Description

technical field [0001] The invention belongs to the technical field of automobile supplies, and in particular relates to a surface treatment process of a wheel hub. Background technique [0002] Along with the development of society, automobile more and more enters in people's life, and existing wheel hub has characteristics such as firmness, lightness mostly. However, when in use, due to its simple structure, its load-bearing capacity is significantly reduced, especially in severe collisions, it is easily deformed, which affects the normal use of the car. Contents of the invention [0003] The purpose of the present invention is to propose a surface treatment process of the wheel hub, which overcomes the deficiencies of the prior art. It can not only remove the etchant of the wheel hub, but also remove the corrosion of other metals and their oxides produced in the casting process. The wheel hub made by the above method has high strength, good toughness, good wheel hub qu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/14C23G1/02C23G5/00C23C22/12
CPCC23G1/14C23C22/12C23G1/02C23G5/00
Inventor 黄房富
Owner KAIPING ZHONGLV IND
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