Full-synthetic metal cutting liquid

A kind of metal cutting fluid, the technology of total synthesis, applied in the direction of lubricating composition, petroleum industry, etc., can solve the problems such as not conforming to environmental protection, cumbersome synthesis method, cumbersome preparation process, etc., and achieve simple manufacturing process, cheap raw materials, rich sources Effect

Inactive Publication Date: 2014-05-28
SOUTHWEST UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, Ji Hongbing, Dai Enqi, Li Chaosheng. High-performance water-based fully synthetic cutting fluid for green manufacturing[J]. Lubrication and Sealing. 2012, 37(3): 107-111. Developed lubricating additives using polyethers, etc. This kind of cutting fluid has good water solubility and no harmful substances in extreme pressure additives, but the formula is relatively complicated, the synthesis method is cumbersome, and the antirust performance needs to be further improved; Xia YQ, Liu W M, Xue Q J. Tribological properties of P-and N-containing or Ganic compounds as potential extreme-pressure and antiwear additives[J]. Lubrication Science, 2003, 15: 173-183. It was found that phosphorus-nitrogen type extreme-pressure and anti-wear additives have load-bearing capacity High, good compounding and excellent lubrication characteristics, but this kind of cutting fluid contains

Method used

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Experimental program
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Embodiment 1

[0025] A fully synthetic metal cutting fluid, the components of which are by mass percentage:

[0026]

[0027]

[0028] The preparation method of the fully synthetic metal cutting fluid comprises the following steps:

[0029] (1) Synthesis method of extreme pressure lubricant

[0030] Put 18g of boric acid and 30g of diethanolamine in a 250ml round bottom flask, put it in a magnetic stirring oil bath, install a condensation device to ensure the sealing of the device, and react at 140°C. After 1h, when anhydrous is formed, add 11g Thiourea, continue to react for 1 hour, stop the reaction; after cooling, a yellow-green viscous solution is obtained; add an appropriate amount of hot water to dissolve the product, and transfer the product.

[0031] (2) Preparation of antirust agent: Take 7.5g of triethanolamine, 6.5g of sodium tetraborate, and 6.0g of sodium gluconate, put them into a beaker with an appropriate amount of water, stir them mechanically to make them evenly dis...

Embodiment 2

[0034] A fully synthetic metal cutting fluid, the components of which are by mass percentage:

[0035]

[0036] The preparation method of the fully synthetic metal cutting fluid comprises the following steps:

[0037] (1) Synthesis method of extreme pressure lubricant

[0038] Put 19g of boric acid and 31g of diethanolamine in a 250ml round-bottomed flask, put them in a magnetic stirring oil bath, install a condensation device to ensure the sealing of the device, react at 140°C, and after 1h, when anhydrous is formed, add 17g Thiourea, continue to react for 1 hour, stop the reaction; after cooling, a yellow-green viscous solution is obtained; add an appropriate amount of hot water to dissolve the product, and transfer the product.

[0039] (2) Preparation of antirust agent: Take 8g of triethanolamine, 7g of sodium tetraborate, and 6.5g of sodium gluconate, put them into a beaker with an appropriate amount of water, stir them mechanically to make them evenly dissolve in wat...

Embodiment 3

[0042] A fully synthetic metal cutting fluid, the components of which are by mass percentage:

[0043]

[0044] The preparation method of the fully synthetic metal cutting fluid comprises the following steps:

[0045] (1) Synthesis method of extreme pressure lubricant

[0046] Put 20g of boric acid and 32g of diethanolamine in a 250ml round bottom flask, put it in a magnetic stirring oil bath, install a condensation device to ensure the sealing of the device, and react at 140°C. After 1h, when anhydrous is formed, add 30g Thiourea, continue to react for 1 hour, stop the reaction; after cooling, a yellow-green viscous solution is obtained; add an appropriate amount of hot water to dissolve the product, and transfer the product.

[0047] (2) Preparation of antirust agent: Take 8g of triethanolamine, 7g of sodium tetraborate, and 6.5g of sodium gluconate, put them into a beaker with an appropriate amount of water, stir them mechanically to make them evenly dissolve in water, an...

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PUM

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Abstract

A full-synthetic metal cutting liquid comprises the following components in percentage by weight: 18-20% of an extreme-pressure lubricant, 6-7% of an antirusting agent, 0.1-0.5% of a defoaming agent, 0.5-1% of a bactericide and the balance of deionized water, wherein the extreme-pressure lubricant comprises 5.1-5.7% of boric acid, 8.6-9.2% of diethanol amine and 4.3-5.1% of thiourea, and the antirusting agent comprises 2.1-2.3% of triethanolamine, 1.9-2% of sodium tetraborate and 1.7-1.9% of sodium gluconate. A method for preparing the metal cutting liquid comprises the following steps: (1) synthetizing organic boric acid ester; (2) synthetizing the extreme-pressure lubricant; (3) preparing the antirusting agent; (4) preparing the full-synthetic metal cutting liquid. Proven by the results, the prepared metal cutting liquid is transparent and stable, is high in extrusion resistance, wear resistance and rust resistance, can be used for processing various materials such as aluminium alloy, cast iron, carbon steel and copper, is equal to foreign similar high-grade products in performance indexes, and achieves the effects of environmental protection, energy conservation and consumption reduction.

Description

technical field [0001] The invention relates to the field of cutting fluids, in particular to a fully synthetic metal cutting fluid that does not contain toxic and harmful elements such as Cl and P, is easy to prepare, and has a simple formula. Background technique [0002] At present, domestic scholars have made some progress in the research of fully synthetic cutting fluid. For example, Ji Hongbing, Dai Enqi, Li Chaosheng. High-performance water-based fully synthetic cutting fluid for green manufacturing[J]. Lubrication and Sealing. 2012, 37(3): 107-111. Developed lubricating additives using polyethers, etc. This kind of cutting fluid has good water solubility and no harmful substances in extreme pressure additives, but the formula is relatively complicated, the synthesis method is cumbersome, and the antirust performance needs to be further improved; Xia YQ, Liu W M, Xue Q J. Tribological properties of P-and N-containing or Ganic compounds as potential extreme-pressure a...

Claims

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Application Information

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IPC IPC(8): C10M173/02C10N40/22C10N30/12C10N30/06
Inventor 何荣幸白宁宁李璐
Owner SOUTHWEST UNIVERSITY
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