Special quenching oil for plate spring and preparation method for special quenching oil

A manufacturing method and quenching oil technology, applied in the direction of quenching agent, manufacturing tools, heat treatment equipment, etc., can solve the problems of insufficient penetration of cracking and quenching layer, and inability to reconcile deformation of quenching medium, so as to achieve precise control and extended use. Longevity, the effect of ensuring uniformity

Active Publication Date: 2019-02-22
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

[0009] In view of the new leaf spring quenching process adopted by the applicant above, the quenching medium in the prior art cannot reconcile the deformation, cracking and insufficient penetration of the quenched layer of the spring after quenching. The present invention provides a special quenching oil for leaf springs. The invention and its manufacturing method can adjust the cooling capacity of quenching oil in combination with the hardenability and critical hardening thickness of the leaf spring material, so that the leaf spring can obtain sufficient and uniform hardness and metallographic structure after quenching, and realize the mechanical properties required by the workpiece. Strength and Toughness

Method used

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  • Special quenching oil for plate spring and preparation method for special quenching oil
  • Special quenching oil for plate spring and preparation method for special quenching oil

Examples

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Effect test

Embodiment 1

[0051] A special quenching oil for leaf springs provided in this embodiment, its composition and the mass parts of each component include: 30 parts of refined base oil, 4 parts of refrigerant, 0.03 part of antioxidant, 0.5 part of brightener, surface Active agent 0.3 part; The kinematic viscosity of described refined base oil is 13~24mm 2 / s, acid value≤0.8mgKOH / g; the refrigerant is a mixture of polyisobutylene and polyol ester, the mixing mass ratio is 1:3; the antioxidant is alkylated diphenylamine (CAS No.68921-45 -9) and 2.6-di-tert-butyl-p-cresol (CAS No.128-37-0), the mass ratio is 1:1; the brightener is a mixture of imidazoline oleate and methyl terpene resin, mass The ratio is 1:1; the surfactant is dioctyl sodium dibutyrate sulfonate (CAS No.577-11-7).

[0052] The preparation method of above-mentioned quenching oil is as follows:

[0053] (1) Weigh 18 parts of refined base oil in proportion, add 4 parts of refrigerant, 0.2 part of surfactant and 0.02 part of antio...

Embodiment 2

[0062] A special quenching oil for leaf springs provided in this embodiment, its composition and the mass parts of each component include 25 parts of refined base oil, 2 parts of refrigerant, 0.02 part of antioxidant, 0.3 part of brightener, surface active 0.5 parts of agent; the kinematic viscosity of the refined base oil is 15-20mm 2 / s, acid value≤0.6mgKOH / g; the refrigerant is a mixture of polyisobutylene and trimethylolpropane tri-n-nonanoate, the mixing mass ratio is 1:1; the antioxidant is alkylated diphenylamine (CAS No.68921-45-9) and 2.6-di-tert-butyl-p-cresol (CAS No.128-37-0), the mass ratio is 1:1; the brightener is imidazoline oleate and formazan Base terpene resin mixture, the mass ratio is 1:1; the surfactant is dioctyl sulfonate sodium dibutyrate (CASNo.577-11-7).

[0063] The preparation method of above-mentioned quenching oil is as follows:

[0064] (1) Weigh 20 parts of refined base oil in proportion, and add 2 parts of refrigerant, 0.4 part of surfactant...

Embodiment 3

[0071] Compared with Example 2, the special quenching oil for leaf springs provided in this example only differs in that its composition and the mass fractions of each component include 25 parts of refined base oil, 2 parts of refrigerant, 0.02 part of antioxidant, 0.3 part of brightener, 0.5 part of surfactant; the kinematic viscosity of the refined base oil is 15-20mm 2 / s, acid value≤0.6mgKOH / g; the refrigerant is a mixture of polyisobutylene and trimethylolpropane tri-n-nonanoate, the mixing mass ratio is 1:3; the antioxidant is alkylated diphenylamine (CAS No.68921-45-9) and 2.6-di-tert-butyl-p-cresol (CAS No.128-37-0), the mass ratio is 1:1; the brightener is imidazoline oleate and formazan Base terpene resin mixture, the mass ratio is 1:1; the surfactant is dioctyl sodium dibutyrate sulfonate (CAS No.577-11-7).

[0072] The preparation method of above-mentioned quenching oil is with embodiment 2.

[0073] Under the conditions of the quenching process adopted by the ap...

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Abstract

The invention discloses special quenching oil for a plate spring and a preparation method for the special quenching oil, and belongs to the technical field of metal thermal treatment and surface treatment. The quenching oil is prepared from the following components in parts by mass: 25-37 parts of refined base oil, 2-4 parts of a cold catalyst, 0.02-0.03 part of an anti-oxidant, 0.3-0.5 part of abrightener, and 0.3-0.5 part of a surfactant. According to the special quenching oil for the plate spring and the preparation method for the special quenching oil disclosed by the invention, hardenability and critical through-quenching thickness of the plate spring material can be combined, and cooling ability of quenching oil is regulated, so that the plate spring obtains enough and uniform hardness and metallographic structure after being quenched, and therefore, mechanical strength and toughness needed for a workpiece are realized, and workpiece deformation is effectively controlled.

Description

technical field [0001] The invention belongs to the technical field of metal heat treatment, and more specifically relates to a special quenching oil for leaf springs and a manufacturing method thereof. Background technique [0002] Suspension is one of the main assemblies of modern automobiles. It can elastically connect the frame (body) and the axle (wheel) to transmit all forces and moments acting between the frame and the axle, and to ease the tension of the car. The impact load brought to the body during driving attenuates the vibration of the bearing system caused by the impact load. The key to making the suspension have the above functions is its elastic elements, which mainly include leaf springs (hereinafter referred to as leaf springs), coil springs, rubber springs, air springs and oil-gas springs. Among them, the leaf spring is the main part that bears the impact load. In addition, the leaf spring also bears the weight (static load) of the carriage and the load. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/58C21D9/02
CPCC21D1/58C21D9/02
Inventor 刘进刘凌郑景亮郑益李海岩史传喜
Owner 马鞍山金泉工业介质科技有限公司
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