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Total synthesis grinding fluid and preparation method thereof

A kind of grinding fluid, fully synthetic technology, applied in the direction of lubricating composition, petroleum industry, etc., can solve the problems that it is difficult to meet the needs of lubrication and anti-rust, the performance of lubricant and anti-rust agent is single, and the anti-rust agent is harmful to human body, etc. Achieve the effects of simple and controllable production process, outstanding anti-rust performance, and enhanced anti-rust effect

Pending Publication Date: 2021-12-03
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The performance of lubricants and antirust agents commonly used in the existing technology is relatively single, and it is difficult to meet the requirements for lubrication and antirust when the working conditions are relatively harsh or the local water quality is relatively hard, and the antirust agents used in most formulas Agents are harmful substances such as sodium nitrite, sodium benzoate, etc.
At the same time, in order to reduce the foam generated by high-speed shearing and improve the settling and hard water resistance, most of the existing technologies need to introduce anti-foaming agents, settling agents and anti-hard water agents, which increases the cost and also leads to cumbersome production processes.

Method used

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  • Total synthesis grinding fluid and preparation method thereof
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preparation example Construction

[0046] In addition, the present invention also provides the preparation method of above-mentioned fully synthetic grinding fluid, and this preparation method comprises the following steps:

[0047]At normal temperature (for example, 15-35°C), add the composite antirust agent and preservative into water, then add the organic alcohol amine, stir until the solid powder is completely dissolved, then add the composite lubricant, and stir until the system is uniform and transparent. Fully synthetic grinding fluid.

[0048] Among them, the water used in the fully synthetic grinding fluid of the present invention is preferably demineralized water, that is, water from which some or all inorganic salts, such as calcium and magnesium salts, have been removed. Generally speaking, the content of magnesium carbonate and calcium carbonate in demineralized water is in the range of 0-60ppm in terms of "mg magnesium carbonate / kg water" or "ppm".

[0049] Thus, the preparation method of the ful...

Embodiment 1

[0052] A fully synthetic grinding fluid and its preparation process, each component, weight percentage and preparation process are:

[0053] 8% compound lubricant, 8% compound antirust agent, 19% organic alcohol amine, 0.2% preservative and 64.8% demineralized water.

[0054] Among them, the composite lubricant is block polymer RPE1720 containing 2%, phosphate ester LP700 containing 3%, polyether ester PRIOLUBE 3955 containing 3%, the composite antirust agent is octanoic acid 1%, undecane dibasic acid 2%, 5% polycarboxylic acid, 4% diglycolamine, 14% triethanolamine, 1% 2-amino-2methyl-1-propanol, 0.2% benzotriazole as preservative, Softened water 64.8%.

[0055] The preparation process is as follows: at room temperature (15-35°C), add 1% n-octanoic acid, 2% undecanedibasic acid, 5% terpolymeric acid, and 0.2% benzotriazole to 64.8% demineralized water. Then add diglycolamine 4%, triethanolamine 14%, 2-amino-2 methyl-1-propanol 1%, stir until the solid powder is completely d...

Embodiment 2

[0057] A fully synthetic grinding fluid and its preparation process, each component, weight percentage and preparation process are:

[0058] Composite lubricant 5%, composite antirust agent 8%, organic alcohol amine 19%, preservative 0.3% and demineralized water 67.7%.

[0059] Among them, the composite lubricant is block polymer RPE1720 containing 2%, polyether ester K9320 containing 3%, the composite antirust agent is neodecanoic acid 1%, dodecanoic acid 2%, ternary polycarboxylic acid 5% , the organic alcohol amine is 4% of monoethanolamine, 15% of diisopropanolamine, the preservative is 0.3% of tolyltriazole derivative, and the demineralized water is 67.7%.

[0060] The preparation process is as follows: at room temperature (15-35°C), add 1% neodecanoic acid, 2% dodecanoic acid, 5% terpolymeric acid, and tolyltriazole to 67.7% demineralized water. 0.3% of derivatives, then add 4% of monoethanolamine and 15% of diisopropanolamine, stir until the solid powder is completely ...

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Abstract

The invention discloses a total synthesis grinding fluid which comprises the following components on the basis of the total mass of the total synthesis grinding fluid: 5-10% of a composite lubricant which comprises at least two lubricants; 5-10% of a composite antirust agent, wherein the composite antirust agent comprises at least three antirust agents; 15-25% of organic alcohol amine; 0.1-0.5% of preservative; and the balance of water. The grinding fluid provided by the invention has good lubricity and extreme pressure property, excellent anti-rust property, outstanding hard water resistance and low foam property. The grinding fluid does not contain substances harmful to human bodies such as boron, chlorine, sodium nitrite, sodium benzoate and phenol, is a green and environment-friendly product, and can be used for grinding processes of bearings, rollers and the like made of black metal.

Description

technical field [0001] The invention belongs to the field of chemical products, in particular to a fully synthetic grinding fluid and a preparation method thereof. Background technique [0002] Grinding is one of the most widely used cutting processing methods. It is mainly used in the removal of some hard materials, materials with high surface roughness requirements, and precision parts. Grinding fluid is the link between the grinding wheel and the workpiece, and plays the role of cooling, lubrication, cleaning and rust prevention in the grinding process. The performance of the grinding fluid has a great influence on the quality of the workpiece. [0003] In grinding, the lubricity and rust resistance of grinding fluid are two very important properties. The lubricity of the grinding fluid should be selected according to the specific process and the material of the workpiece. For some medium-to-high-load grinding, or difficult-to-machine materials, the grinding fluid must...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M173/02C10M177/00C10N30/06C10N30/12
CPCC10M173/02C10M177/00C10M2215/042C10M2201/02C10M2209/107C10M2209/108C10M2223/04C10M2207/126C10M2207/127C10M2215/223C10M2215/222C10M2209/10
Inventor 陈志忠郎需进张杰李铭刘学洋曹正强
Owner PETROCHINA CO LTD
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