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Chemical spring surface deburring process

A deburring and crafting technology, which is applied in chemical instruments and methods, metal material coating technology, cleaning methods using liquids, etc., to achieve ideal results, save labor, and improve economic benefits

Active Publication Date: 2014-08-06
安庆谢德尔汽车零部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When chemically deburring the surface of the spring, soaking in nitric acid is used. During the treatment process, harmful gases of nitrogen oxides will be produced, which will seriously pollute the environment and damage the operation workers' health
Nitric acid immersion method has poor effect consistency, and it takes a long time to deburr, the continuous operation time is short, and the efficiency is high and low cost

Method used

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  • Chemical spring surface deburring process

Examples

Experimental program
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Effect test

Embodiment 1-1

[0029] Embodiment 1-1: ordinary water-65%; hydrogen peroxide-20%; NH 4 HF 2 -15%.

Embodiment 1-2

[0030] Embodiment 1-2: Ordinary water-80%; Hydrogen peroxide-10%; NH 4 HF 2 -10%.

Embodiment 1-3

[0031] Embodiment 1-3: Ordinary water-75%; Hydrogen peroxide-5%; NH 4 HF 2 -20%.

[0032] 104. Brightening treatment, use brightening treatment liquid to treat the surface of the spring to make the surface of the spring bright, and at the same time eliminate the burrs and impurities on the surface of the spring and remove the elastic force. The brightening treatment solution contains 80% of ordinary water, 15% of hydrogen peroxide and 5% of ammonium bifluoride in terms of mass percentage, and the time for the spring to be brightened at normal temperature and pressure is 20-30 seconds.

[0033] 105. Ultrasonic cleaning, using ultrasonic cleaning equipment in the ultrasonic cleaning solution to clean the surface of the spring to remove iron filings on the surface of the spring;

[0034] 106. Invasion oil treatment, the spring is immersed in the antirust liquid to carry out antirust treatment on its surface, and the antirust liquid contains 5% water-soluble antirust oil and 9...

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Abstract

The invention provides a chemical spring surface deburring process. The chemical spring surface deburring process comprises the followings steps: performing deoiling cleaning, pickling, performing elastic force removal, performing ultrasonic cleaning and performing oil immersion, and further comprises a step of shining, wherein a water cleaning step is performed between every two adjacent steps. According to the invention, the brand-new process is adopted to deburr; an elastic force liquid is adopted to perform passivating treatment to form a passive film and a liquid film on the surface of a spring so as to realize a microcosmic and macroscopic levelling effect; shining treatment is performed on the surface of the spring to enable the surface of the spring to be shining, and meanwhile, burrs and impurities on the surface of the spring are removed to realize an elastic force removal effect; muriatic acid is adopted for pickling, so that harmful gases cannot be generated, and a work environment is optimized.

Description

technical field [0001] The invention relates to the technical field of surface treatment of metal parts, in particular to a chemical deburring process for spring surfaces. Background technique [0002] Chemical deburring is a process that makes the metal surface bright and smooth through chemical reactions in a certain chemical medium. Many complex metal parts have hundreds of cross holes, shoulder holes, blind holes, etc. or have tight structures, and it is required to remove all cross holes. Holes or burrs on tightly structured surfaces are very difficult. The chemical deburring process uses a soaking process to remove the burrs, which is not affected by the size of the metal parts, as long as the chemical deburring solution can enter the place, the burrs can be removed. [0003] When chemically deburring the surface of the spring, soaking in nitric acid is used. During the treatment process, harmful gases of nitrogen oxides will be produced, which will seriously pollu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/02C23C22/34C23F3/00C23F11/00B08B3/12
Inventor 候世玉
Owner 安庆谢德尔汽车零部件有限公司
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