Isothermal graded quenching oil composition and uses thereof

A grading quenching oil, isothermal technology, applied in the direction of quenching agent, lubricating composition, petroleum industry, etc., can solve the problem of not having the anti-corrosion performance of the workpiece, and achieve the effects of small deformation, easy cleaning and long service life

Active Publication Date: 2014-04-09
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] One of the technical problems to be solved by the present invention is to further improve the cooling performance, thermal oxidation stability and brightness of the isothermal graded quen

Method used

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  • Isothermal graded quenching oil composition and uses thereof
  • Isothermal graded quenching oil composition and uses thereof
  • Isothermal graded quenching oil composition and uses thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～5

[0031] Pump the base oil into the blending kettle, turn on the agitator and the heating switch, and when the oil is heated to 65°C, add the required amount of each component in turn, and continue to heat and stir at 65°C for 3 hours to obtain a uniform yellow liquid. The components and contents of the isothermal graded quenching oil composition are shown in Table 1, and the corresponding performance index results are shown in Tables 2 and 3.

[0032] in,

[0033] Liquid Polymer Phenol, Produced by Shanghai Yucheng Chemical Co., Ltd.

[0034] Octyl / Butyldiphenylamine, Produced by Shanghai Yucheng Chemical Co., Ltd.

[0035] HVI II6, lubricating base oil, produced by Jingmen Oil Refinery, kinematic viscosity at 100°C is 6.12mm 2 ·s -1 .

[0036] HVI II30, lubricating base oil, produced by Jingmen Oil Refinery, kinematic viscosity at 100°C is 29.16mm 2 ·s -1 .

[0037]

Embodiment 10

[0047] The isothermal graded quenching oil composition of [Examples 1-5] was used in the high-temperature quenching process, and the cooling curve of the oil product is shown in Fig. 1 and Fig. 2 .

[0048]During the use of the oil, it exhibits excellent cooling performance, thermal oxidation stability and brightness. After quenching, the workpiece has high hardness, small deformation, bright surface, less sludge at high temperature, and long service life. After quenching, it has a certain effect on the workpiece. Excellent short-term anti-rust effect, easy to clean later, saves the step of applying anti-rust oil, and saves production costs.

Embodiment 4

[0049] [Example 4] The isothermal graded quenching oil of the present invention is used at 160°C to quench the parts and components of an automobile gearbox in a certain factory in Hubei Province. Table 4.

[0050]

[0051]

[0052]

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Abstract

The invention relates to an isothermal graded quenching oil composition and uses thereof, mainly aims at further improvement of cooling performances, thermal oxidation stability and brightness of isothermal graded quenching oil in the prior art, and solves the problem that the isothermal graded quenching oil has no corrosion resistant performance on workpieces after quenching. The isothermal graded quenching oil composition comprises the following components: by weight, a) 0.3 to 8 parts of a cooling accelerant; b) 0.1 to 3 parts of an antioxidant; c) 0.001 to 1 part of a brightener; d) 0.03 to 5 parts of an anti rust agent; and e ) 78 to 98 parts of base oil; in the technical scheme, the antioxidant is selected from a phenolic antioxidant or a mixture of amine antioxidants, the technical scheme can well solve the problem, and the isothermal graded quenching oil composition can be used for quenching of wearable steel balls, saw blade, auto gearbox gears, gear rings, gear sleeves, shafts and other precision parts.

Description

technical field [0001] The invention relates to an isothermal graded quenching oil composition and its application. Background technique [0002] For some high-precision bearings, gears and other parts, in addition to achieving the required hardness and structure after heat treatment, a small amount of deformation is also required to solve the problems of cracking, deformation and excessive size changes of the workpiece. The heat treatment of these parts usually adopts austempering or step quenching process. [0003] Austempering is a quenching process in which the workpiece is heated to austenitize, then quickly cooled to the bainite transformation temperature range, and isothermally maintained for a long period of time to transform austenite into bainite, also known as bainite isothermal Quenching. Staged quenching is to heat the workpiece to austenitize, immerse it in a medium with a temperature slightly higher or slightly lower than the martensitic transformation tempe...

Claims

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Application Information

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IPC IPC(8): C10M169/04C21D1/58C10N30/12C10N30/10
Inventor 陈晨李谨郑春燕魏传良张志龙王俊郭国梁施东学
Owner CHINA PETROLEUM & CHEM CORP
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