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Preparation method of cutting fluid for post-cutting of neodymium iron boron

A technology of cutting processing and cutting fluid, which is applied in the petroleum industry, lubricating compositions, etc., can solve the problems of not being able to meet the needs of use, not many product reports, and easy oxidation of products, and achieve excellent anti-rust and anti-oxidation effects with low cost , the effect of reducing surface tension

Inactive Publication Date: 2012-11-14
TIANCHANG RUNDA METAL ANTIRUST AUX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

NdFeB products are easy to oxidize and corrode due to their active chemical properties, gaps in powder metallurgy bodies, and galvanic battery reactions between different metals due to the rare earth elements contained in the product itself, and the general water-based cutting fluid is difficult to fully meet its processing requirements. Require
Judging from the existing patents, documents and technologies, the existing cutting fluids can be mainly applied to the cutting and grinding of metals such as iron, aluminum, copper, etc. There are not many reports on water-based cutting fluid products for post-processing of sintered NdFeB. Even if there is a small amount of reports, there are such and other defects, which cannot meet the needs of use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for preparing a cutting fluid for late-stage cutting of NdFeB, wherein the cutting fluid consists of the following components by weight percentage: ethylenediamine 5%, isopropanolamine 16%, oleic acid 8%, sebacic acid 3%, water-soluble phosphate 3%, polyether 6%, methyl benzotriazole 12%, TX-100.7%, polyvinyl alcohol 6%, 5-chloro-2-methyl-4-isothiazoline -3-ketone 0.3%, emulsified silicone oil 0.5%, isopropanol 5%, water balance; the preparation method comprises the following steps:

[0018] 1) Mix and stir ethylenediamine, isopropanolamine, oleic acid, and sebacic acid at 60°C for 30 minutes, then cool for later use;

[0019] 2) Dissolve polyether, methylbenzotriazole, TX-10, polyvinyl alcohol, 5-chloro-2-methyl-4-isothiazolin-3-one and isopropanol in water at 30°C in sequence ; and stirred for 40 minutes;

[0020] 3) Add the mixture obtained in step 1) to the mixture obtained in step 2), then add emulsified silicone oil, and stir for 60 minutes.

Embodiment 2

[0022] A method for preparing a cutting fluid for post-cutting of NdFeB, wherein the cutting fluid is composed of the following components by weight percentage: ethylenediamine 7%, isopropanolamine 14%, oleic acid 10%, sebacic acid 1%, water-soluble phosphate 5%, polyether 4%, methyl benzotriazole 14%, TX-100.5%, polyvinyl alcohol 8%, 5-chloro-2-methyl-4-isothiazoline -3-ketone 0.1%, emulsified silicone oil 0.7%, isopropanol 3%, water balance; the preparation method comprises the following steps:

[0023] 1) Mix and stir ethylenediamine, isopropanolamine, oleic acid, and sebacic acid at 70°C for 20 minutes, then cool for later use;

[0024] 2) Dissolve polyether, methylbenzotriazole, TX-10, polyvinyl alcohol, 5-chloro-2-methyl-4-isothiazolin-3-one and isopropanol in water at 40°C in sequence ; and stirred for 30 minutes;

[0025] 3) Add the mixture obtained in step 1) to the mixture obtained in step 2), then add emulsified silicone oil, and stir for 90 minutes.

Embodiment 3

[0027] A method for preparing a cutting fluid for post-cutting of NdFeB, wherein the cutting fluid is composed of the following components by weight percentage: ethylenediamine 6%, isopropanolamine 15%, oleic acid 9%, sebacic acid 2%, water-soluble phosphate 4%, polyether 5%, methyl benzotriazole 13%, TX-100.6%, polyvinyl alcohol 7%, 5-chloro-2-methyl-4-isothiazoline -3-ketone 0.2%, emulsified silicone oil 0.6%, isopropanol 4%, water remainder; The preparation method comprises the following steps:

[0028] 1) Mix and stir ethylenediamine, isopropanolamine, oleic acid, and sebacic acid at 65°C for 25 minutes, then cool for later use;

[0029] 2) Dissolve polyether, methylbenzotriazole, TX-10, polyvinyl alcohol, 5-chloro-2-methyl-4-isothiazolin-3-one and isopropanol in 35°C water in sequence ; and stirred for 35 minutes;

[0030] 3) Add the mixture obtained in step 1) to the mixture obtained in step 2), then add emulsified silicone oil, and stir for 75 minutes.

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PUM

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Abstract

The invention discloses a preparation method of cutting fluid for post-cutting of neodymium iron boron. The cutting fluid comprises the following ingredients in percentage by weight: 5-7 percent of ethanediamine, 14-16 percent of isopropanolamine, 8-10percent of oleic acid, 1-3 percent of sebacic acid, 3-5 percent ofwater-soluble phosphate, 4-6 percent of polyether, 12-14 percent of methylbenzotriazole, 0.5-0.7 percent of TX-10, 6-8 percent of polyvingakohol, 0.1-0.3 percent of 5-chlorine-2-methyl-4-isothiazolin-3-ketone, 0.5-0.7 percent of silicone emulsion, 3-5 percent of isopropanol, and the balance of water. The preparation method comprises the following steps of: mixing and stirring the ethanediamine, the isopropanolamine, the oleic acid and the sebacic acid at the temperature of 60-70 DEG C for 20-30 minutes, and cooling for standby use; sequentially dissolving the polyether, the methylbenzotriazole, the TX-10, the polyvingakohol, the 5-chlorine-2-methyl-4-isothiazolin-3-ketone and the isopropanol into the water with the temperature of 30-40 DEG C; stirring for 30-40 minutes; adding a mixture obtained by the step (1) into a mixture obtained by the step (2); adding the silicone emulsion; and stirring for 60-90 minutes.

Description

technical field [0001] The invention relates to the technical field of magnetic material cutting, in particular to a method for preparing a cutting fluid for later cutting of NdFeB. Background technique [0002] With the improvement of cutting technology, there are more and more types of cutting fluids. According to its type, it can be roughly divided into two categories: oil-based cutting fluid and water-based cutting fluid. [0003] Oil-based cutting fluids mostly use mineral oil, fatty oil, mixed oil and extreme pressure oil as raw materials, and generally have good lubricity, but poor cooling performance. Used in high-speed and heavy-duty cutting processes, the environmental sanitation will be deteriorated due to violent smoke, and there may even be a risk of fire. The splashing and scattering of oil also aggravates the pollution to the environment. At the same time, in order to prevent oxidative deterioration and improve its lubricating extreme pressure performance, i...

Claims

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Application Information

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IPC IPC(8): C10M173/02C10N40/22C10N30/12C10N30/06C10N30/10
Inventor 林伟江海涛江海波江浩
Owner TIANCHANG RUNDA METAL ANTIRUST AUX
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