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Magnesium alloy cutting fluid resistant to bimetallic contact corrosion and preparation method thereof

A technology of contact corrosion and magnesium alloys, applied in lubricating compositions, petroleum industry, additives, etc., can solve the problems of bimetallic contact corrosion and lack of bimetallic contact corrosion performance, and achieve good stability in hard water and excellent salt load resistance Effect

Inactive Publication Date: 2019-10-29
俄美达(武汉)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of magnesium alloy processing, stainless steel fixtures are often used to clamp magnesium alloy workpieces for subsequent process operations in some processes, and in batch processing processes, stainless steel fixtures may clamp magnesium alloy workpieces within 16 hours. About 24 hours, under such process conditions, magnesium alloy workpieces are prone to bimetallic contact corrosion with stainless steel fixtures
[0003] However, at present, cutting fluid manufacturers at home and abroad generally pay attention to the corrosion inhibition performance of magnesium alloy machining cutting fluid on magnesium alloy itself, and the research on the performance of bimetallic contact corrosion is still relatively lacking.
The cutting fluids suitable for magnesium alloy processing on the market generally can only meet the corrosion resistance requirements of magnesium alloys, and magnesium alloy cutting fluids that can resist bimetallic contact corrosion are extremely rare

Method used

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  • Magnesium alloy cutting fluid resistant to bimetallic contact corrosion and preparation method thereof
  • Magnesium alloy cutting fluid resistant to bimetallic contact corrosion and preparation method thereof
  • Magnesium alloy cutting fluid resistant to bimetallic contact corrosion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0035] The main raw materials are expressed in parts by weight as:

[0036]

[0037]

[0038] Among them, the composite antirust agent is the reaction product of component A, component B and component C.

[0039] Component A: 36.7 parts of a mixture of methyldiethanolamine and triethanolamine

[0040] Component B: 8.0 parts of dodecanedibasic acid

[0041] Component C: 55.3 parts of mixture of tall oil acid and alcohol ether carboxylic acid

[0042] The preparation process is as follows: put component A and component B into the reaction kettle in sequence according to the above ratio, heat to 60±5°C and stir, after the solid material is completely reacted to a clear and transparent state, add component C, and continue stirring for 30 minutes until the reaction completely.

[0043] Wherein, component A: the weight ratio of methyldiethanolamine and triethanolamine is 6:1

[0044] Component C: The weight ratio of tall oil acid and alcohol ether carboxylic acid is 1:1.5 ...

Embodiment example 2

[0058] The main raw materials are expressed in parts by weight as:

[0059]

[0060] Among them, the composite antirust agent is the reaction product of component A, component B and component C.

[0061] Component A: 38 parts of mixture of methyldiethanolamine and triethanolamine

[0062] Component B: 10 parts of dodecanedibasic acid

[0063] Component C: 52 parts of mixture of tall oil acid and alcohol ether carboxylic acid

[0064] The preparation process is: put component A and component B into the reaction kettle in sequence according to the above ratio, heat to 60±5°C and stir, after the solid material is completely reacted to a clear and transparent state, add component C, and continue stirring for 30 minutes until the reaction completely.

[0065] Wherein, component A: the weight ratio of methyldiethanolamine and triethanolamine is 6:1

[0066] Component C: The weight ratio of tall oil acid and alcohol ether carboxylic acid is 1:1.5

[0067] Composite phosphorus-c...

Embodiment example 3

[0080] The main raw materials are expressed in parts by weight as:

[0081]

[0082]

[0083] Among them, the composite antirust agent is the reaction product of component A, component B and component C.

[0084] Component A: 23 parts of mixture of methyldiethanolamine and triethanolamine

[0085] Component B: 12 ​​parts of dodecanedioic acid

[0086] Component C: 65 parts of a mixture of tall oil acid and alcohol ether carboxylic acid;

[0087] The preparation process is: put component A and component B into the reaction kettle in sequence according to the above ratio, heat to 60±5°C and stir, after the solid material is completely reacted to a clear and transparent state, add component C, and continue stirring for 30 minutes until the reaction completely.

[0088] Wherein, component A: the weight ratio of methyldiethanolamine and triethanolamine is 4:1

[0089] Component C: The weight ratio of tall oil acid and alcohol ether carboxylic acid is 1:1.5

[0090] Compo...

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PUM

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Abstract

The invention discloses a magnesium alloy cutting fluid resistant to bimetallic contact corrosion. The magnesium alloy cutting fluid comprises the following raw materials by weight: 23-30 parts of a composite rust inhibitor, 5-8 parts of a composite phosphorus-containing corrosion inhibitor, 0.6-1.5 parts of benzotriazol, 20-40 parts of mineral oil, 5-12 parts of vegetable oil-modified lubricatingester, 3-5 parts of petroleum sulfonate, 4-7 parts of fatty alcohol polyoxyethylene ether, 0.6-1.2 parts of a coupled solubiliser, 20-35 parts of water, 2-4 parts of a microbial inhibitor and 0.05-0.2 part of a siloxane antifoaming agent. The invention also discloses a preparation method for the magnesium alloy cutting fluid resistant to bimetallic contact corrosion. The cutting fluid of the invention can meet the requirements of magnesium alloy for anti-corrosion performance and solve the problem of bimetal contact corrosion occurring in the processing of the magnesium alloy by metal processing enterprises, thereby improving the yield and the production efficiency of magnesium alloy processing.

Description

technical field [0001] The invention belongs to the field of metal working fluids, and more specifically relates to a bimetallic contact corrosion-resistant magnesium alloy cutting fluid and a preparation method thereof. Background technique [0002] Magnesium has active chemical properties and poor corrosion resistance. Magnesium alloys are prone to problems such as burning, processing machine tools or processing parts being corroded during processing. And various studies have shown that magnesium alloys are extremely prone to galvanic corrosion with other metals in contact with the outside, and this kind of corrosion is also called "bimetallic contact corrosion". However, in the process of magnesium alloy processing, stainless steel fixtures are often used to clamp magnesium alloy workpieces for subsequent process operations in some processes, and in batch processing processes, stainless steel fixtures may clamp magnesium alloy workpieces within 16 hours. About 24 hours, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M173/00C10M141/10C10N40/22C10N30/12
CPCC10M141/10C10M173/00C10M2203/10C10M2207/127C10M2207/18C10M2209/104C10M2209/108C10M2215/042C10M2215/223C10M2219/044C10M2223/04C10M2223/06C10N2010/02C10N2030/12C10N2040/22C10N2040/244
Inventor 安钢高原
Owner 俄美达(武汉)有限公司
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