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Method for preparing metal cutting fluid with high extreme pressure resistance

A technology of metal cutting fluid and cutting fluid, which is applied in the field of metal cutting to achieve good lubrication, strong versatility, and excellent extreme pressure resistance

Inactive Publication Date: 2015-07-22
TIANCHANG RUNDA METAL ANTIRUST AUX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that it is not suitable for occasions requiring good extreme pressure resistance, so it is still not very ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A method for preparing a metal cutting fluid with good extreme pressure resistance. The cutting fluid consists of the following components in parts by weight: 16 parts of barium petroleum sulfonate, 12 parts of lead naphthenate, 8 parts of oleic acid, and 28 parts of triethanolamine 2 parts, 2 parts of boric acid, 6 parts of sodium molybdate, 0.5 parts of methyl silicone oil, 5 parts of borax, 10 parts of diethanolamine boric acid polycarboxylate complex ester, 10 parts of diethanolamine boric acid maleic anhydride complex ester, 2 parts of sodium silicate part, 5 parts of nitrobenzoic acid, 40 parts of water, and described preparation method comprises the steps:

[0016] 1) Synthesis of diethanolamine boric acid polycarboxylic acid complex ester: Esterify diethanolamine, polycarboxylic acid, and boric acid at 150°C for 4 hours at a molar ratio of 3:1:1;

[0017] 2) Synthesis of diethanolamine boric acid maleic anhydride complex ester: Esterify diethanolamine, maleic an...

Embodiment 2

[0021] A method for preparing a metal cutting fluid with good extreme pressure resistance. The cutting fluid consists of the following components in parts by weight: 18 parts of barium petroleum sulfonate, 10 parts of lead naphthenate, 10 parts of oleic acid, and 22 parts of triethanolamine 3 parts of boric acid, 4 parts of sodium molybdate, 1 part of methyl silicone oil, 3 parts of borax, 12 parts of diethanolamine boric acid polycarboxylate complex ester, 8 parts of diethanolamine boric acid maleic anhydride complex ester, 3 parts of sodium silicate part, 3 parts of nitrobenzoic acid, 50 parts of water, and described preparation method comprises the steps:

[0022] 1) Synthesis of diethanolamine boric acid polycarboxylic acid complex ester: Esterify diethanolamine, polycarboxylic acid, and boric acid at 155°C for 2 hours at a molar ratio of 3:1:1;

[0023] 2) Synthesis of diethanolamine boric acid maleic anhydride complex ester: Esterify diethanolamine, maleic anhydride, and...

Embodiment 3

[0027] A method for preparing a metal cutting fluid with good extreme pressure resistance. The cutting fluid consists of the following components in parts by weight: 17 parts of barium petroleum sulfonate, 11 parts of lead naphthenate, 9 parts of oleic acid, and 25 parts of triethanolamine 2.5 parts of boric acid, 5 parts of sodium molybdate, 0.8 parts of methyl silicone oil, 4 parts of borax, 11 parts of diethanolamine boric acid polycarboxylate complex ester, 9 parts of diethanolamine boric acid maleic anhydride complex ester, 2.5 parts of sodium silicate part, 4 parts of nitrobenzoic acid, 45 parts of water, and described preparation method comprises the steps:

[0028] 1) Synthesis of diethanolamine boric acid polycarboxylic acid complex ester: Esterify diethanolamine, polycarboxylic acid, and boric acid at a molar ratio of 3:1:1 at 153°C for 3 hours;

[0029] 2) Synthesis of diethanolamine boric acid maleic anhydride complex ester: Esterify diethanolamine, maleic anhydrid...

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PUM

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Abstract

The invention discloses a method for preparing a metal cutting fluid with high extreme pressure resistance. The method for preparing the metal cutting fluid with high extreme pressure resistance comprises the following steps of: 1) synthesizing diethanolamine-boric acid-polycarboxylic acid complex ester, namely performing esterification reaction of diethanolamine, polycarboxylic acid and boric acid in a molar ratio of 3:1:1 at the temperature of 150 to 155 DEG C for 2 to 4 hours; 2) synthesizing diethanolamine-boric acid-maleic anhydride complex ester, namely performing esterification reaction of diethanolamine, maleic anhydride and boric acid in a molar ratio of 3:1:1 at the temperature of 150 to 155 DEG C for 2 to 4 hours; 3) raising the temperature of water to 70 to 80 DEG C, sequentially adding lead naphthenate, oleic acid, barium petroleum sulfonate, triethanolamine, borax, sodium silicate and nitrobenzoic acid under stirring, continuing to stir for 20 to 40 minutes, reducing the temperature to 50 to 60 DEG C, adding sodium molybdate and boric acid under the condition of constant stirring, stirring for 20 to 30 minutes, adding methylsilicone oil, and stirring for 10 to 20 minutes; and 4) mixing products obtained in step 1)-3), and stirring at the temperature of 50 to 60 DEG C for 60 to 90 minutes to obtain the metal cutting fluid.

Description

technical field [0001] The invention relates to the technical field of metal cutting, in particular to a preparation method of a metal cutting fluid with good extreme pressure resistance. Background technique [0002] Cutting fluid is an industrial liquid used to cool and lubricate cutting tools and workpieces during metal cutting, cutting and grinding. The cutting fluid is composed of various functional additives, and should have good cooling, lubrication, rust prevention and cleaning functions at the same time. In order to save energy, metal cutting oils at home and abroad are currently developing towards the trend of substituting water for oil. Countries around the world are paying more and more attention to the use of water-based cutting fluids. Although my country has made some progress in this regard, there are still some problems compared with foreign samples. There is a big difference, and it still mainly depends on imports from abroad, while the United States has wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M173/02C10M177/00C10N40/22C10N30/12C10N30/06C10N30/04
Inventor 林伟江海涛江海波江浩
Owner TIANCHANG RUNDA METAL ANTIRUST AUX
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