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Oil-removing and cleaning process for automobile part

A technology for auto parts and processes, applied in the field of degreasing and cleaning processes for auto parts, can solve problems such as oil residue and achieve the effect of convenient surface treatment

Inactive Publication Date: 2017-10-24
ANHUI CAREMIC CONSULTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the simple process steps of this process, there will be problems of oil residue on parts degreasing

Method used

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  • Oil-removing and cleaning process for automobile part
  • Oil-removing and cleaning process for automobile part

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A degreasing and cleaning process for auto parts, the steps comprising:

[0026] (1) Remove oil slick

[0027] Car parts are washed with an emulsified degreaser, and the composition of the emulsified degreaser includes kerosene, turpentine, lauric acid, triethanolamine, butyl cellosolve, surfactant and sodium metasilicate aqueous solution, and the mass ratio of its components is 61: 22.5:5.4:3.6:1.5:2.4:6.7, pickling after cleaning and drying;

[0028] (2) pickling

[0029] Carry out pickling in 10% (volume) sulfuric acid solution, temperature is 30 ℃;

[0030] (3) Washing

[0031] Wash auto parts in flowing water with a water velocity of 0.5m / s;

[0032] (4) Acid degreasing

[0033] Acid degreasing is carried out in a degreasing liquid composed of phosphoric acid, sulfuric acid, nitric acid and boric acid with a mass ratio of 57.5:35.5:16.3:7.5. The acid degreasing temperature is 75°C and the degreasing time is 1 min;

[0034] (5) Second pickling

[0035] Use th...

Embodiment 2

[0043] A degreasing and cleaning process for auto parts, the steps comprising:

[0044] (1) Remove oil slick

[0045] Car parts are washed with an emulsified degreaser, and the composition of the emulsified degreaser includes kerosene, turpentine, lauric acid, triethanolamine, butyl cellosolve, surfactant and sodium metasilicate aqueous solution, and the mass ratio of its components is 61: 22.5:5.4:3.6:1.5:2.4:6.7, pickling after cleaning and drying;

[0046] (2) pickling

[0047] Carry out pickling in 15% (volume) sulfuric acid solution, temperature is 35 ℃;

[0048] (3) Washing

[0049] Wash auto parts in flowing water with a water velocity of 0.5m / s;

[0050] (4) Acid degreasing

[0051] Acid degreasing is carried out in a degreasing liquid composed of phosphoric acid, sulfuric acid, nitric acid and boric acid with a mass ratio of 57.5:35.5:16.3:7.5. The acid degreasing temperature is 75-100°C, and the degreasing time is 3 minutes;

[0052] (5) Second pickling

[005...

Embodiment 3

[0061] A degreasing and cleaning process for auto parts, the steps comprising:

[0062] (1) Remove oil slick

[0063] Car parts are washed with emulsified degreaser, then pickled after cleaning and drying;

[0064] (2) pickling

[0065] Carry out pickling in 20% (volume) sulfuric acid solution, temperature is 30-40 ℃;

[0066] (3) Washing

[0067] Wash auto parts in flowing water with a water velocity of 0.5m / s;

[0068] (4) Acid degreasing

[0069] Degreasing the acid liquid in a degreasing liquid composed of phosphoric acid, sulfuric acid, nitric acid and boric acid with a mass ratio of 57.5:35.5:16.3:7.5. The degreasing temperature of the acid liquid is 100°C, and the degreasing time is 1 min;

[0070] (5) Second pickling

[0071] Use the mixed acid of concentrated nitric acid and hydrofluoric acid with a mass ratio of 3:1 to pickle the auto parts for 8 seconds;

[0072] (6) Second washing

[0073] Wash the auto parts in flowing water with a water speed of 0.3m / s, and...

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PUM

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Abstract

The invention discloses an oil-removing and cleaning process for an automobile part. The oil-removing and cleaning process comprises the following steps of: removing floating oil; performing acid pickling; performing water washing; removing oil of acid liquor; removing oil of alkali liquor; and performing water washing and drying. The oil-removing and cleaning process utilizes various oil-removing methods to perform deep oil-removing operation on the automobile part, so that the surface f the automobile part is smoother, follow-up surface treatment of the automobile part is convenient, and surface treated substance drop caused by residual oil on the surface of the automobile part is prevented.

Description

technical field [0001] The invention relates to the field of auto parts processing technology, in particular to a degreasing and cleaning process for auto parts. Background technique [0002] Auto parts processing is the units that constitute the whole of auto parts processing and the products that serve the processing of auto parts. Auto parts must be degreased on the surface before processing, and the degreasing process is different. [0003] For example, the patent CN201410672059.5 discloses a process for removing oil from the surface of parts, which is characterized in that the process comprises the following steps: (1) preparing materials: the preparing materials include: 90-110 parts of water in terms of weight components, 12-15 parts of hydrochloric acid, 5-6 parts of ammonium chloride, 12-15 parts of anhydrous sodium sulfate, 3-5 parts of malonic acid, 1-2 parts of sodium fluoride, 3-5 parts of sodium sulfide, 10-15 parts of oxalic acid , 8-10 parts of cobalt sulfat...

Claims

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Application Information

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IPC IPC(8): C23G1/00
CPCC23G1/00
Inventor 张晨
Owner ANHUI CAREMIC CONSULTING CO LTD
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