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Metalworking fluid

A technology of metal processing and oil, which is used in metal processing equipment, metal processing machinery parts, petroleum industry, etc.

Active Publication Date: 2009-08-05
NIPPON OIL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in recent years, there have been concerns about the carcinogenicity of chlorine-based extreme pressure agents contained in metalworking oils, or the generation of dioxins associated with the incineration of chlorine-based waste liquids. Therefore, it has been desired to develop Metal processing technology that does not use chlorine-based extreme pressure agents

Method used

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  • Metalworking fluid
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～18、 comparative example 1～3

[0344]In Examples 1 to 18 and Comparative Examples 1 to 2, base oils A to E and additives a to c shown below were used to prepare metal working oils, respectively. Fatty acid composition, total unsaturation, density at 15°C, kinematic viscosity at 40°C, viscosity index, acid value and iodine value of base oils A, B and E, and base oils C and D at 15°C Table 1 shows the density, kinematic viscosity, viscosity index, acid value and iodine value at 40°C. In addition, the composition and the kinematic viscosity in 40 degreeC of each oil agent of Examples 1-15 and Comparative Examples 1-3 are shown in Tables 2-5.

[0345] (base oil)

[0346] A: High oleic canola oil

[0347] B: High Oleic Sunflower Oil

[0348] C: methyl oleate

[0349] D: Diisodecyl adipate

[0350] E: refined rapeseed oil

[0351] (additive)

[0352] a: Trishydroxycresyl phosphate

[0353] b: sulfur ester

[0354] c: 2,6-di-tert-butyl-p-cresol.

[0355] Next, using the oil agents of Examples 1 to 18 and...

Embodiment 19～30、 comparative example 4～15

[0394] In Examples 19 to 30 and Comparative Examples 4 to 15, the base oils shown in Table 6 and the additives shown below were respectively used to prepare metalworking oil compositions having the compositions shown in Tables 7 to 11. In addition, the high oleic rapeseed oil, high oleic sunflower oil and refined rapeseed oil used in this example are actually composed of triesters formed by fatty acids and glycerol, and the triesters have the following properties shown in Table 6: fatty acid composition. In addition, in Table 7, the contents of high oleic rapeseed oil, high oleic sunflower oil, and refined rapeseed oil correspond to the contents of triesters referred to in the present invention.

[0395] (additive)

[0396] Additive a: trishydroxycresyl phosphate (TCP)

[0397] Additive b: sulfurized ester

[0398] Additive c: Calcium sulfonate (Ca sulfonate)

[0399] Additive d: 2,6-di-tert-butyl-p-cresol (DBPC).

[0400] (Table 6)

[0401]

[0402] Next, the followi...

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Abstract

The oil for metal working according to the invention is an oil for metal working comprising a triester of fatty acids and glycerin, wherein the content of oleic acid in the fatty acids is 40-98 % by mass based on the total amount of the fatty acids. The oil for metal working of the invention can achieve a high level of machining performance without using a chlorine-based extreme pressure agent.

Description

technical field [0001] The present invention relates to an oil agent for metal processing. Background technique [0002] Metal processing includes cutting processing, grinding processing, roll forming processing, forging processing, press processing, drawing processing, rolling processing, and the like, and these metal processing are generally performed using lubricants. For example, in the process of cutting and grinding, in order to prolong the life of tools such as drills, end mills, cutting knives, and grinding tools used in processing, or to improve the surface roughness of the workpiece, and to use them to improve processing efficiency In machining operations, in order to improve productivity, cutting and grinding oils are usually used. [0003] In conventional metalworking oils, chlorine-based extreme-pressure agents such as chlorinated paraffins and sulfur-based extreme-pressure agents such as sulfurized greases and polysulfides are often used. In particular, diffi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M101/04C10M111/02B23Q11/10B23Q11/12C10M101/02C10M105/02C10M105/32C10N30/00C10N30/06C10N30/10C10N40/02C10N40/04C10N40/08C10N40/20C10N50/04C10M105/38C10M105/34C10M105/36C10N40/22C10N40/24
Inventor 须田聪横田秀雄井比政则
Owner NIPPON OIL CO LTD