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Preparing method for pretreatment liquid for phosphating of clamp for sheet metal part machining

A technology of phosphating treatment and pretreatment liquid, applied in the field of sheet metal parts processing, can solve the problems of incomplete phosphating treatment, scrapped fixtures, affecting the reuse of fixtures, etc., and achieves the improvement of deoxidizing layer function, rapid formation, and uniform thickness Effect

Inactive Publication Date: 2016-05-11
WUXI YICHEN MOLD TECH
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing phosphating treatment methods generally have defects such as incomplete phosphating treatment, which affects the reuse of the fixture, and severe cases may lead to the complete scrapping of the fixture

Method used

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Examples

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Comparison scheme
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Embodiment Construction

[0009] The present invention will be described in more detail below in conjunction with examples. However, the content of the embodiments is only an example and description of the present invention. Those skilled in the art can make various modifications or supplements to the described specific embodiments or replace them in similar ways, as long as they do not deviate from the principles of the invention. Conception or beyond the scope defined in the claims shall belong to the protection scope of the present invention.

[0010] 1. The composition of the pretreatment solution

[0011] 15 parts of sodium dodecylbenzenesulfonate, 12 parts of methanol, 2 parts of ethyl acetate, 0.5 parts of asiaticoside, 10 parts of sodium metasilicate and 52.5 parts of deionized water.

[0012] Two, the preparation method of pretreatment liquid is:

[0013] First, add 15 parts of sodium dodecylbenzenesulfonate and 20 parts of deionized water to the container, and stir for 5 minutes; then slowl...

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Abstract

The invention relates to the technical field of sheet metal part machining, in particular to a preparing method for pretreatment liquid for phosphating of a clamp for sheet metal part machining. The preparing method includes the steps that firstly, 15 parts of sodium dodecyl benzene sulfonate and 20 parts of deionized water are added into a container and stirred for 5 minutes; secondly, 2 parts of ethyl acetate is added slowly and is stirred while being added, and stirring is conducted for 5 minutes after adding is completed; thirdly, 12 parts of methyl alcohol and 10 parts of deionized water are added slowly and are stirred while being added, and stirring is conducted for 5 minutes after adding is completed; fourthly, 0.5 part of asiaticoside is added slowly and is stirred while being added, and stirring is conducted for 10 minutes after adding is completed; and finally, 10 parts of sodium metasilicate and 22.5 parts of deionized water are added rapidly and stirred for 20 minutes. By means of the method for conducting adding step by step, the solubility property among substance can be improved, the possibility of particle agglomeration can also be avoided, and the oxide layer removing function of the pretreatment liquid can be obviously improved.

Description

technical field [0001] The invention relates to the technical field of sheet metal parts processing, in particular to a method for preparing a pretreatment liquid used for phosphating treatment of a fixture for sheet metal part processing. Background technique [0002] Fixtures for sheet metal processing, because the protective layer on the surface is gradually corroded with the increase in the number of uses, therefore, the fixture needs regular maintenance, and the protective layer is repaired by phosphating treatment (that is, the phosphating film is formed by phosphating) ). The existing phosphating treatment methods generally have defects such as incomplete phosphating treatment, which affects the reuse of the fixture, and in severe cases may lead to the complete scrapping of the fixture. Contents of the invention [0003] In view of the technical problems existing in the prior art, the object of the present invention is to provide a kind of preparation method for th...

Claims

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Application Information

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IPC IPC(8): C23C22/78
CPCC23C22/78
Inventor 钱根来
Owner WUXI YICHEN MOLD TECH
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