Semisynthetic micro-emulsified cutting fluid for magnesium alloy cutting

A cutting and semi-synthetic technology, which is applied in the petroleum industry, lubricating compositions, etc., can solve the problems of easy corrosion of machine tools and processing parts, increase of cutting fluid water hardness, shortening the service life of cutting fluid, etc., and achieve excellent cleaning and cooling performance, good resistance to hard water, and extended service life

Inactive Publication Date: 2015-11-25
深圳市奥科宝特种油剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since magnesium alloy is relatively active, it is easy to oxidize and burn during processing. Using non-aqueous cutting oil to process magnesium alloy is easy to cause fire, and the processed workpiece is heavily oily and difficult to clean.
[0003] Relatively speaking, it is safer to use water-soluble cutting fluid to process magnesium alloys, but the following problems generally exist in the process of use: first, the processing machine tools and processing parts are easily corroded during the cutting process of magnesium alloys; During the process, the metal magnesium reacts with the liquid, and some magnesium ions will be precipitated, which will increase the water hardness of the cutting fluid, cause demulsification and stratification, and shorten the service life of the cutting fluid; The reaction of water and amine in the magnesium alloy will cause blackening and corrosion of the magnesium alloy workpiece and affect the quality of the processed product

Method used

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  • Semisynthetic micro-emulsified cutting fluid for magnesium alloy cutting
  • Semisynthetic micro-emulsified cutting fluid for magnesium alloy cutting
  • Semisynthetic micro-emulsified cutting fluid for magnesium alloy cutting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of semi-synthetic micro-emulsion cutting fluid for cutting magnesium alloy, its composition and the amount of various components of this semi-synthetic micro-emulsion cutting fluid can be:

[0020] ① 40g of mineral oil, 13g of pH regulator, 12g of emulsifier, 5g of corrosion inhibitor, 0.5g of stabilizer, 0.2g of defoamer, 2g of bactericide and 20g of water.

[0021] ② 60g of mineral oil, 4g of pH regulator, 30g of emulsifier, 2.5g of corrosion inhibitor, 1.5g of stabilizer, 0.01g of defoamer, 4g of bactericide and 5g of water.

[0022] ③ 45g of mineral oil, 10g of pH regulator, 18g of emulsifier, 4g of corrosion inhibitor, 0.8g of stabilizer, 0.12g of defoamer, 2.5g of bactericide and 17g of water.

[0023] ④ 55g of mineral oil, 7g of pH regulator, 23g of emulsifier, 3g of corrosion inhibitor, 1.2g of stabilizer, 0.08g of defoamer, 3.5g of bactericide and 10g of water.

[0024] ⑤ 50g of mineral oil, 8g of pH regulator, 20g of emulsifier, 3.5g of corrosion inhib...

Embodiment 2

[0027] According to the embodiments of the present invention, the specific type of mineral oil is not particularly limited, and the mineral oil in ①~⑥ in embodiment 1 can be at least one in naphthenic mineral oil and paraffinic mineral oil, the Mineral oil can be used as the basic component to form water-soluble cutting fluid microemulsion, and the formed system has good lubricity and heat transfer. For example, the mineral oil may be: ① naphthenic mineral oil; ② paraffinic mineral oil; ③ naphthenic mineral oil and paraffinic mineral oil. The density of the mineral oil is 0.85~0.9g / cm 3 (For example: can preferably be 0.88g / cm 3 ), the kinematic viscosity at a temperature of 40 degrees Celsius is 10-30mm 2 / s (for example: can be preferably 20g / cm 3 ), the mineral oil can be: ①40℃, viscosity 28mm 2 / s naphthenic mineral oil; ②40℃, ​​viscosity is 20mm 2 / s naphthenic mineral oil; ③40℃, viscosity is 23mm 2 / s paraffin-based mineral oil; ④40℃, density 0.88g / cm 3 Paraffin-b...

Embodiment 3

[0029] According to the embodiment of the present invention, the pH value of the cutting fluid is not particularly limited, and the pH value of the cutting fluid in ①~⑥ in Example 1 can be 9.0~10.5, preferably, the pH value can be 9.5~ 10.5, the cutting oil in this pH range can not only inhibit the reproduction of bacteria, but also not cause skin contact and discomfort to the operator due to an excessively high pH value.

[0030] According to an embodiment of the present invention, the cutting fluid pH regulator is not particularly limited, and the pH regulator in ①~⑥ in Example 1 can be triethanolamine, monoethanolamine, diglycolamine, isopropanol One or more of amines and 2-amino-2-methyl-1-propanol, the reasonable use of this pH regulator meets the performance requirements and environmental protection requirements of water-soluble cutting fluids, and has good pH stability , so as to maintain its long service life. Specifically, the pH regulator can be: ① triethanolamine; ...

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Abstract

The invention relates to semisynthetic micro-emulsified cutting fluid for magnesium alloy cutting, comprising, by weight, 40 to 60 parts of mineral oil, 4 to 13 parts of pH regulator, 12 to 30 parts of emulsifier, 2.5 to 5 parts of corrosion inhibitor, 0.5 to 1.5 parts of stabilizer, 0.01 to 0.2 part of defoamer, 2 to 4 parts of sterilizing agent, and 5 to 20 parts of water. The semisynthetic micro-emulsified cutting fluid is good in abrasion resistance, hard water resistance and magnesium alloy corrosion resistance, is super-long in service life; adding the semisynthetic micro-emulsified cutting fluid for magnesium alloy cutting is required only, while replacing is not required.

Description

technical field [0001] The invention relates to a metal processing fluid, in particular to a semi-synthetic micro-emulsion cutting fluid for magnesium alloy cutting. Background technique [0002] As a lightweight structural material, magnesium alloy has the advantages of low density, high specific strength, large elastic modulus, good heat dissipation, and good shock absorption. It is widely used in aviation, aerospace, defense industry, automobile industry, 3C industry and other fields. Since magnesium alloy is relatively active, it is easy to oxidize and burn during processing. Using non-aqueous cutting oil to process magnesium alloy is easy to cause fire, and the processed workpiece is heavily oily and difficult to clean. [0003] Relatively speaking, it is safer to use water-soluble cutting fluid to process magnesium alloys, but the following problems generally exist in the process of use: first, the processing machine tools and processing parts are easily corroded durin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M173/00C10M169/04C10N40/22C10N30/06C10N30/12C10N30/04
Inventor 李慧敏刘伟张波卢文卫
Owner 深圳市奥科宝特种油剂有限公司
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