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A kind of quenching oil capable of making automobile leaf springs blacken after quenching and quenching method thereof

A technology of automobile plate and quenching oil, which is applied in the direction of quenching agent, furnace type, furnace, etc., can solve the problems of easy quenching crack, easy deformation, strength and stiffness not meeting the requirements, etc. and the effect of small deformation rate

Active Publication Date: 2018-06-12
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 problems that existing automobile leaf springs are easily deformed, easily cracked, and the strength and stiffness after quenching cannot meet the requirements, the present invention provides a quenching oil and its quenching oil that can make automobile leaf springs blacken automatically after quenching. method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033]A kind of quenching oil that can make automobile leaf springs self-blacken after quenching. Its composition and the mass parts of each component are: 35 parts of refined base oil, 9 parts of cold urging compounding agent, 0.4 part of blackening compounding agent, brightener 0.5 part, 0.6 part of surfactant, 0.02 part of antioxidant. Among them, the kinematic viscosity of the refined base oil is 14-25mm 2 / s, acid value ≤0.02mgKOH / g. The cooling compounding agent is a mixture of polyisobutylene, dialkylnaphthalene and petroleum sulfonate (mass ratio is 2:1:1); the blackening compounding agent is short oil alkyd resin, EPDM, dyeing agent and Mixture of wetting agent (mass ratio 5:1:1:1); brightener is a mixture of imidazoline oleate and methyl terpene resin (mass ratio 1:1); wetting agent is fatty acid polyoxygen A mixture of vinyl ether and glycerin (mass ratio is 8:1); surfactant is a mixture of Span-80 and dioctyl sodium dibutyrate (mass ratio is 3:1); dyeing agent is...

Embodiment 2

[0052] A kind of quenching oil that can make automobile leaf springs self-blacken after quenching. Its composition and the mass parts of each component are: 38 parts of refined base oil, 7 parts of cold urging compounding agent, 0.5 part of blackening compounding agent, brightener 0.4 part, 0.4 part of surfactant, 0.02 part of antioxidant. Among them, the kinematic viscosity of the refined base oil is 14-25mm 2 / s, acid value ≤0.02mgKOH / g. The cooling compounding agent is a mixture of polyisobutylene, dialkylnaphthalene and petroleum sulfonate (mass ratio is 2:1:1); the blackening compounding agent is short oil alkyd resin, EPDM, dyeing agent and Mixture of wetting agent (mass ratio 5:1:1:1); brightener is a mixture of imidazoline oleate and methyl terpene resin (mass ratio 1:1); wetting agent is fatty acid polyoxygen A mixture of vinyl ether and glycerin (mass ratio is 8:1); surfactant is a mixture of Span-80 and dioctyl sodium dibutyrate (mass ratio is 3:1); dyeing agent i...

Embodiment 3

[0071] A kind of quenching oil that can make automobile leaf springs blacken after quenching. Its composition and the mass parts of each component are: 40 parts of refined base oil, 10 parts of cooling and compounding agent, 0.7 parts of blackening compounding agent, brightener 0.3 part, 0.7 part of surfactant, 0.03 part of antioxidant. Among them, the kinematic viscosity of the refined base oil is 14-25mm 2 / s, acid value ≤0.02mgKOH / g. The cooling compounding agent is a mixture of polyisobutylene, dialkylnaphthalene and petroleum sulfonate (mass ratio is 2:1:1); the blackening compounding agent is short oil alkyd resin, EPDM, dyeing agent and Mixture of wetting agent (mass ratio 5:1:1:1); brightener is a mixture of imidazoline oleate and methyl terpene resin (mass ratio 1:1); wetting agent is fatty acid polyoxygen A mixture of vinyl ether and glycerin (mass ratio is 8:1); surfactant is a mixture of Span-80 and dioctyl sodium dibutyrate (mass ratio is 3:1); dyeing agent is D...

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Abstract

The invention discloses quenching oil capable of enabling an automobile plate spring to blacken automatically after quenched and a quenching method thereof. The invention belongs to the field of metal heat treatment technology. The quenching oil comprises the following components, by weight, 35-40 parts of refined base oil, 7-10 parts of cooling catalyzed composite agent, 0.4-0.7 parts of blackening composite agent, 0.3-0.5 parts of brightening agent, 0.4-0.7 parts of surface activating agent and 0.02-0.03 parts of antioxidant. The effect is best when the maximum cooling speed of the quenching oil for the plate spring is about 110-120 DEG C / s and the using temperature is 65-70 DEG C. Under the above conditions, the strength and the stiffness of the quenched plate spring are greatly improved, at the same time the effect of the automatic surface blackening can be realized and a protective film formed on the surface is strong in adhesion and good in wear-resisting property. Once more surface coating and rust preventing treatment after the heat treatment can be reduced, so that the resources can be saved, the processes can be reduced and the efficiency can be improved.

Description

technical field [0001] The invention belongs to the technical field of metal heat treatment, and more specifically relates to a quenching oil and a quenching method that can make automobile leaf springs blacken after quenching. Background technique [0002] Automobile leaf spring is the most traditional elastic element in automobile suspension system. It is widely used because of its good reliability, simple structure, short manufacturing process, low cost and greatly simplified structure. Automobile leaf spring is generally A group of spring beams of equal strength is composed of several pieces of alloy spring steel with unequal lengths. In addition to the cushioning function in the suspension system, when it is placed longitudinally in the car and one end is connected to the frame as a fixed hinge, it can be responsible for transmitting all forces and moments in all directions, as well as determining the trajectory of the wheel movement. Therefore, there is no need to set...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D1/58C21D9/02C23C22/02
CPCC21D1/58C21D9/02C23C22/02
Inventor 刘进郑益刘凌崔平李海岩史传喜
Owner 马鞍山金泉工业介质科技有限公司
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