Water soluble full-alloy metal grinding fluid

A fully synthetic, grinding fluid technology, applied in the field of metal grinding fluid, can solve problems such as poor lubricating performance and anti-rust performance, large surface roughness of the workpiece, rapid surface rust return, etc., to achieve excellent lubrication and no organic residues , The effect of long storage life

Active Publication Date: 2014-09-03
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, compared with oil-based grinding fluids and oil-containing water-based grinding fluids (including emulsions, microemulsions and fully synthetic fluids), oil-free water-soluble fully synthetic metal grinding fluids perform relatively poorly in terms of lubricating performance and antirust performance. , it is easy to cause the surface roughness of the workpiece to be large, and the surface will quickly return to rust after processing, which will have a serious negative impact on the subsequent process

Method used

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  • Water soluble full-alloy metal grinding fluid
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  • Water soluble full-alloy metal grinding fluid

Examples

Experimental program
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Effect test

Embodiment 1

[0040]Example 1 Water-soluble fully synthetic metal grinding fluid concentrated stock solution proportioning example

[0041] Preparation method of long-chain nitrogen-containing heterocyclic organic ester (long-chain benzotriazole carboxylic acid alkyl ester) in the present invention:

[0042] (1) Add 0.01~0.2mol benzotriazole carboxylic acid, 10~150mL SOCl 2 and 1-15mL DMF, heated to reflux for 1-5 hours;

[0043] (2) Cool, add 15-250mL petroleum ether, precipitate benzotriazole carboxylic acid chloride, filter;

[0044] (3) Add 2 to 40 g of sodium hydroxide, 15 to 300 mL of water and 0.01 to 0.2 mol of alkyl alcohol into another three-necked flask, place it in ice water, and dissolve the benzotriazole carboxyl Acyl chloride is added to the reaction solution in batches, and reacted for 5 to 10 hours;

[0045] (4) Pour the reaction solution into 25-500mL of water, the precipitated solid is the alkyl benzotriazole carboxylate, and filter it for later use.

[0046] The al...

Embodiment 2

[0053] Example 2 Effect of Chain Length on the Lubrication Performance of Alkyl Benzotriazole Carboxylate and Comparison with the Lubrication Performance of Commercial Grinding Fluid

[0054] One of the proportions in Examples 1-6 is used to prepare a stock solution of water-soluble fully synthetic metal grinding fluid, in which benzotriazole carboxylate alkyl esters prepared by alkyl alcohols with different chain lengths are added; the stock solution is diluted 20 times to form a working solution , the lubricating performance of the working fluid was tested on the friction and wear test machine, and the lubricating performance was compared with the 20-fold diluted working fluid of commercial emulsified lubricant and fully synthetic grinding fluid.

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Abstract

The invention discloses a water soluble full-alloy metal grinding fluid which belongs to the technical field of metal grinding fluids. The metal grinding fluid is prepared from the following components in percentage by weight: 5-40wt% of an antirust agent, 1-20wt% of a cleaning agent, 0.1-10wt% of a lubricating corrosion inhibitor, 1-20wt% of a penetrant, 1-20wt% of a solubilizer, 10-40wt% of a PH adjustor, 0.5-5wt% of a defoamer and the balance of water. Based on the total weight of the water soluble full-alloy metal grinding fluid, the pH value of the water soluble full-alloy metal grinding fluid is 7-11. The lubricating corrosion inhibitor is long chain nitrogen heterocyclic ring organic ester. The water soluble full-alloy metal grinding fluid has excellent lubricating, rust-preventing, cleaning and cooling performances and can be widely applied to grinding of ferrous metals and nonferrous metals.

Description

technical field [0001] The invention belongs to the technical field of metal grinding fluid, in particular to an environment-friendly water-soluble fully synthetic metal grinding fluid. Background technique [0002] With the continuous development and progress of industrial technology and the continuous emergence of new materials and new processes, the requirements for the working fluid that is consumed in the metal processing process, that is, the metal processing fluid, are becoming more and more precise and demanding. Selecting a suitable metalworking fluid in precision and ultra-precision machining is crucial to ensuring product processing quality, improving processing efficiency and reducing environmental pollution. Oil depletion, energy crisis and increasingly serious ecological environment pollution have become major problems that people need to solve urgently. This situation puts forward urgent requirements for the application of oil-free water-soluble fully syntheti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M173/00C10N30/12C10N40/22
Inventor 戴媛靜张晨辉雒建斌郑闽皖
Owner TSINGHUA UNIV
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