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Method for preparing metal cutting liquid with low surface tension

A metal cutting fluid, low surface technology, used in the petroleum industry, additives, lubricating compositions, etc., can solve the problems of inability to use cylinder liner inner hole honing and high-speed cutting, high cost of use, waste of energy, etc., to achieve a working environment. Clean without oil mist, enhance the use effect, reduce the use cost effect

Inactive Publication Date: 2006-01-25
无锡市弘育化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, coal and diesel will produce a large amount of oil vapor during honing and high-speed cutting. On the one hand, it will pollute the environment and cause allergic hazards to human skin; Safe production; Secondly, coal and diesel are important industrial and domestic energy sources, and they are directly used as coolants in large quantities, which not only wastes energy, but also has high usage costs
The usual artificial synthetic coolant, due to the large surface tension, is generally around 40mN / m, which cannot meet the performance of coal and diesel oil, and its permeability and cleaning performance cannot meet the requirements of fine sand strip cleaning and high-speed cutting instantaneous cooling. , so it cannot be used for cylinder liner inner hole honing and high-speed cutting

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Example 1: Prepare 1000 g of cutting fluid containing 0.8% fluorocarbon surfactant.

[0011] Stir 8g of zinc fluoride surfactant into 32g of isopropanol until completely dissolved; take 200g of TX-10 nonionic surfactant and add it to the previous mixture, and heat it to 60-70°C for 20 minutes to make it Fully reacted and completely dissolved surfactant monomers that are transparent. Add 40g of sebacic acid antirust agent into 80g of triethanol, heat and dissolve at 80-90°C to obtain the antirust agent monomer. Mix the above-mentioned surfactant monomers, anti-rust monomers, and usual amounts of defoamers, sterilizers, lubricants, and the rest of water, and heat at 50-80°C to condense and stir for half an hour to obtain transparent cutting liquid. Take a small amount and dilute it to a concentration of 5%. The measured surface tension is 30mN / m, and the anti-rust test is qualified within 7 days.

Embodiment 2

[0012] Example 2: Prepare 1000 g of cutting fluid containing 2% fluorocarbon surfactant.

[0013] 20g of silicon-containing fluorocarbon surfactant (such as CF 3 SiCl 3 or (CF 3 ) 2 SiCl 2 ) and stir into 80g of isopropanol until it is completely dissolved; take 200g of 2040 polyether nonionic surfactant and add it to the previous mixture, and heat to 60-80°C and stir to make it fully react and completely dissolve to obtain a transparent surfactant monomer. Add 20g of sebacic acid powder into 40g of triethanol and dissolve at 80°C; take 50g of sodium molybdate and dissolve in hot water. Mix the above-mentioned surfactant monomers, anti-rust monomers, and usual amounts of defoamers, sterilizers, lubricants, and the rest of water, heat at 60-80°C, condense and stir for half an hour to obtain a transparent cut (grinding) cutting fluid. Take a small amount and dilute it to a concentration of 5%. The measured surface tension is 27mN / m, and the antirust test is qualified afte...

Embodiment 3

[0014] Example 3: Prepare 1000 g of cutting (grinding) fluid containing 5% fluorocarbon surfactant.

[0015] 50g R F CH 2 CH 2 S CH 2 CH(OH)CH 2 O(CH 2 CH 2 O) 7 CH 3 Mix non-ionic fluorocarbon surfactant, 200g polyethylene glycol, antirust monomer containing ammonium molybdate, defoamer, sterilizer, lubricant and the rest of water, heat to 50-80°C to condense and stir for half Hours to get a transparent cutting fluid. Take a small amount and dilute it to a concentration of 5%. The measured surface tension is 25mN / m, and the antirust test is qualified after 15 days.

[0016] For the convenience of description, the coolant and the cutting (grinding) fluid in the present invention are synonymous. The metal cutting coolant with low surface tension in the present invention means that the surface tension at 5% concentration is less than or equal to 30 mN / m according to the usual method for measuring surfactants.

[0017] Coolant type

[0018] Note: This data ...

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PUM

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Abstract

A metal-cutting liquid with low surface tension lens than 30 mN / m features that it contains F-C surfactant for lower surface tension and excellent antirust agent (molybdate). Its advantages are low surface tension, strong defoaming power.

Description

technical field [0001] The invention relates to the improvement of the metal cutting fluid, especially the cooling system used for the honing of the inner hole of the cylinder liner and the high-speed cutting processing of the machining center and the numerical control machine tool. Background technique [0002] In order to meet the high-speed movement of the piston and piston ring and the requirement of no oil leakage, the inner hole of the cylinder liner needs a high degree of smoothness, and its honing needs to be ground with a very fine-grained (eg 180-240 mesh) emery strip. However, the boron alloy micropowder produced by the fine-grained sand bar in the process of honing the cylinder wall can easily enter the micropores of the sand bar and cause blockage of the micropores of the sand bar, which affects the normal and effective honing. In order to clean and remove the metal powder blocked in the micropores of the sand bar during grinding, coal and diesel oil with low su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M141/04
Inventor 张永宽张波
Owner 无锡市弘育化工有限公司
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