Quenching oil capable of enabling bearing steel to automatically blacken after quenching

A technology of quenching oil and bearing steel, which is applied in the field of quenching oil, can solve the problems of resource waste and low efficiency, and achieve the effects of energy saving, process reduction and good gloss

Active Publication Date: 2015-03-25
马鞍山金泉工业介质科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem that the quenching and blackening treatment in the prior art are carried out separately, there are waste of resources, low efficiency, etc., the present invention provides a kind of quenching oil which can make the bearing steel self-blackening after quenching, which can make the bearing steel Parts (including bearing rings, rollers, and cages) are automatically blackened after quenching, and the two processes of heat treatment and surface treatment are perfectly combined to save resources and improve timeliness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A kind of quenching oil that can make bearing steel self-blacken after quenching is characterized in that: its composition and the mass fraction of each component are: refined base oil (kinematic viscosity 28-42mm 2 / s, pour point ≤ -9°C, acid value ≤0.02mgKOH / g) 18 parts, 0.3 parts of cooling compounding agent, 0.16 parts of blackening compounding agent, 0.3 parts of brightener, 1.24 parts of surfactant.

[0025] The cooling compounding agent is a mixture of polyisobutylene and EPDM, wherein the mass ratio of polyisobutylene to EPDM is 2:1; the blackening compounding agent is a mixture of acrylate, dyeing agent and wetting agent , wherein the mass ratio of acrylate, colorant (Black AFR, oily colorant produced by BASF) and wetting agent (oil-soluble azone) is 1:2:1; described brightener is petroleum sulfonate and A mixture of dibasic acids, wherein the mass ratio of petroleum sulfonate to dibasic acid is 1:2; the surfactant is oily phenolic resin.

[0026] The quenchin...

Embodiment 2

[0037] A kind of quenching oil that can make bearing steel self-blacken after quenching is characterized in that: its composition and the mass fraction of each component are: refined base oil (kinematic viscosity 28-42mm 2 / s, pour point ≤ -9°C, acid value ≤0.02mgKOH / g) 17 parts, 0.6 parts of cooling compounding agent, 0.1 part of blackening compounding agent, 0.5 parts of brightener, 1 part of surfactant.

[0038]The cooling compounding agent is a mixture of polyisobutylene and EPDM, wherein the mass ratio of polyisobutylene to EPDM is 2:1; the blackening compounding agent is a mixture of acrylate, dyeing agent and wetting agent , wherein the mass ratio of acrylate, colorant (Black AFR, oily colorant produced by BASF) and wetting agent (oil-soluble azone) is 1:2:1; described brightener is petroleum sulfonate and A mixture of dibasic acids, wherein the mass ratio of petroleum sulfonate to dibasic acid is 1:2; the surfactant is oily phenolic resin.

[0039] The quenching oil o...

Embodiment 3

[0050] A kind of quenching oil that can make bearing steel self-blacken after quenching is characterized in that: its composition and the mass fraction of each component are: refined base oil (kinematic viscosity 28-42mm 2 / s, pour point ≤ -9°C, acid value ≤0.02mgKOH / g) 19 parts, 0.2 parts of cooling compounding agent, 0.3 parts of blackening compounding agent, 0.2 parts of brightener, 2 parts of surfactant.

[0051] The cooling compounding agent is a mixture of polyisobutylene and EPDM, wherein the mass ratio of polyisobutylene to EPDM is 2:1; the blackening compounding agent is a mixture of acrylate, dyeing agent and wetting agent , wherein the mass ratio of acrylate, colorant (Black AFR, oily colorant produced by BASF) and wetting agent (oil-soluble azone) is 1:2:1; described brightener is petroleum sulfonate and Dibasic acid mixture, wherein the mass ratio of petroleum sulfonate to dibasic acid is 1:2; the surfactant is oily phenolic resin.

[0052] The quenching oil of t...

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Abstract

The invention discloses quenching oil capable of enabling bearing steel to automatically blacken after quenching, belonging to the technical field of heat treatment and surface treatment of metals. The quenching oil comprises the following components in parts by weight: 17-19 parts of refined base oil, 0.2-0.6 part of cooling accelerating composite agent, 0.1-0.3 part of blackening composite agent, 0.2-0.5 part of brightening agent and 1-2 parts of surfactant. The quenching oil can ensure that bearing steel parts (including bearing rings, rollers and retainers) automatically blacken after quenching, not only can obtain ideal quenching hardness and metallographic structures and achieve the mechanical strength and toughness required by workpieces but also can achieve the effect that the surfaces automatically blacken, and is conducive to reducing coating and rust-proof retreatment of the surfaces after heat treatment, saving energy, reducing procedures and improving the efficiency.

Description

technical field [0001] The invention belongs to the technical field of metal heat treatment and surface treatment, and more specifically relates to a quenching oil capable of making bearing steel self-blacken after quenching. Background technique [0002] Metals are usually heat treated to improve the strength and metallographic structure of the metal to obtain the desired properties, and the quenching medium is one of the key factors to obtain high quenching quality. Commonly used quenching mediums include brine, water, minerals oil, air, etc. Blackening is a common method of chemical surface treatment. The principle is to produce an oxide film on the metal surface to isolate the air and achieve the purpose of rust prevention. In the prior art, quenching and blackening treatment are two different processes. Due to the different requirements of quenching medium and blackening liquid, it is difficult to perfectly combine the two processes of heat treatment and surface blacke...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/58C23C22/02
CPCC21D1/58C23C22/02
Inventor 郑益赵慧史传喜郑景亮
Owner 马鞍山金泉工业介质科技有限公司
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