Water-soluble quenching oil composition

A technology of composition and quenching oil, applied in the directions of lubricating composition, quenching agent, petroleum industry, etc., can solve the problems of cracking of the treated body and fast cooling speed, and achieve sufficient cooling speed, low cooling speed and sufficient characteristic seconds. Effect

Active Publication Date: 2018-11-23
IDEMITSU KOSAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a disadvantage that the cooling rate in the temperature range from 350°C to 150°C specified as JIS K 2242:2012: Appendix A (Method B) becomes faster, and cracking (quench cracking) of the treated body tends to occur.

Method used

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  • Water-soluble quenching oil composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～4 and comparative example 1～4

[0093] A water-soluble quenching oil composition was prepared with the ingredients and ratios shown in Table 1.

[0094] Regarding the above-mentioned water-soluble quenching oil compositions, cooling performance and durability thereof were evaluated for each water-soluble quenching oil composition by the following evaluation method. The results are shown in Table 1 together.

[0095] [Evaluation method]

[0096] (1) Cooling evaluation

[0097] According to the cooling test specified in JIS K 2242:2012: Appendix A (Method B), the cooling curves were obtained for each water-soluble quenching oil composition obtained at a liquid temperature of 40°C.

[0098] (1.1) Characteristic seconds

[0099] From the above cooling curve, the time until reaching the characteristic temperature (the temperature at which the vapor film phase ends) (characteristic seconds) is obtained.

[0100] (1.2) Cooling rate

[0101] In the above cooling curve, the cooling rate from 350°C to 150°C was c...

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Abstract

This water-soluble quenching oil composition is formed by blending, with water, at least one type selected from polyoxyalkylene glycol and a derivative thereof (A), and at least one type selected fromalkylene glycol ether (B) and monocarboxylic acid (C), wherein the mass average molecular weight of the polyoxyalkylene glycol and derivative thereof (A) is 10,000-100,000, the alkylene glycol ether(B) has a boiling point of 200 DEG C or greater and has a molecular weight per 1 mol of less than or equal to 1,000 g / mol.

Description

technical field [0001] The present invention relates to water-soluble quench oil compositions. Background technique [0002] In the quenching of metals, by cooling as quickly as possible (short characteristic seconds) in the vapor film stage (high temperature region), the temperature range specified in JIS K 2242: 2012 after the vapor film is broken (collapsing) is sufficiently Cooling at a high cooling rate can prevent quenching cracking or quenching deformation. Examples of the quenching oil composition used in quenching the metal include water-based and oil-based ones. [0003] It is preferable to use a water-based quenching oil from the viewpoint of high cooling capacity and low risk of pollution or fire. However, since the boiling point of water is 100°C, the processed object is rapidly cooled to around 100°C after the vapor film is broken. Therefore, there is a disadvantage that the cooling rate in the temperature range from 350° C. to 150° C. stipulated as JIS K 22...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/60C08K5/06C08K5/09C08K5/17C08L71/02C10M107/34C10M129/16C10M129/32C10M129/40C10M133/08C10M145/36C10M173/02C10N20/00C10N20/04C10N30/00C10N40/20
CPCC10M173/02C08L71/02C10M2201/102C10M2207/04C10M2207/126C10M2207/127C10M2209/107C10M2215/042C10M2215/223C08J3/05C08J2371/02C21D1/60C10N2020/04C10N2020/091C10N2040/24C08K5/06C08K5/09C08K5/17C08J3/07
Inventor 市谷克实本间立树
Owner IDEMITSU KOSAN CO LTD
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