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Pretreatment liquid for mechanical parts

A technology of pretreatment liquid and mechanical parts, applied in the direction of metal material coating process, etc., can solve the problems of high cost and poor effect, and achieve the effect of reducing the difficulty of processing and reducing the cost.

Inactive Publication Date: 2015-03-11
QINGDAO CHANGANDA PHARMA IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current pretreatment solution cannot meet the requirements, and has the disadvantages of poor effect and high cost.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] A kind of pretreatment liquid for mechanical parts is made from the following raw materials in parts by weight:

[0011] 8 parts of sodium salicylate, 3 parts of sodium oxalate, 6 parts of liquid stone ester, 5 parts of glyceryl tristearate, 4 parts of nitric acid, 3 parts of zinc oxide, 3 parts of complexing agent, 4 parts of sodium fluoride, potassium tartrate 8 parts of sodium, 2 parts of brightener, 1 part of sodium carbonate, 1 part of nickel sulfate hexahydrate, 4 parts of sodium hypophosphite.

Embodiment 2

[0013] A kind of pretreatment liquid for mechanical parts is made from the following raw materials in parts by weight:

[0014] 14 parts of sodium salicylate, 8 parts of sodium oxalate, 10 parts of liquid stone ester, 9 parts of glyceryl tristearate, 6 parts of nitric acid, 9 parts of zinc oxide, 6 parts of complexing agent, 6 parts of sodium fluoride, potassium tartrate 11 parts of sodium, 5 parts of brightener, 5 parts of sodium carbonate, 3 parts of nickel sulfate hexahydrate, 8 parts of sodium hypophosphite.

Embodiment 3

[0016] A kind of pretreatment liquid for mechanical parts is made from the following raw materials in parts by weight:

[0017] 11 parts of sodium salicylate, 5 parts of sodium oxalate, 8 parts of liquid stone ester, 7 parts of glyceryl tristearate, 5 parts of nitric acid, 6 parts of zinc oxide, 4 parts of complexing agent, 5 parts of sodium fluoride, potassium tartrate 10 parts of sodium, 4 parts of brightener, 3 parts of sodium carbonate, 2 parts of nickel sulfate hexahydrate, 6 parts of sodium hypophosphite.

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PUM

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Abstract

A pretreatment liquid for mechanical parts is prepared from the following raw materials, by weight, 8-14 parts of sodium salicylate, 3-8 parts of sodium oxalate, 6-10 parts of liquid paraffin, 5-9 parts of tristearin, 4-6 parts of nitric acid, 3-9 parts of zinc oxide, 3-6 parts of a complexing agent, 4-6 parts of sodium fluoride, 8-11 parts of potassium sodium tartrate, 2-5 parts of a brightener, 1-5 parts of sodium carbonate, 1-3 parts of nickel sulfate hexahydrate, and 4-8 parts of sodium hypophosphite. The pretreatment liquid for mechanical parts can be used for high pretreatment of workpieces, mitigates the processing difficulty, has a certain antirust function on the workpieces, and reduces the cost.

Description

technical field [0001] The invention relates to a pretreatment liquid for mechanical parts. Background technique [0002] In recent years, various industries have demanded further improvement in productivity and cost reduction. In order to form the target shape, processing raw materials such as metals, plastics, ceramics and rubber are processed by various processing methods. At the same time, in recent years, the precision of machining equipment has become higher and higher, and the requirements for workpieces have also become higher and higher, and the cost has also increased accordingly. Therefore, when processing parts with high precision and high requirements, it is generally necessary to pre-process the parts processing, to reduce the difficulty of processing, and at the same time, it has a good effect on ensuring accuracy and reducing the cost of processing. However, the current pretreatment solution cannot meet the requirements, and has the disadvantages of poor ef...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/47
CPCC23C22/47
Inventor 王璐许璟
Owner QINGDAO CHANGANDA PHARMA IND CO LTD