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Special flame-retardant quenching oil for plate spring, and preparation method and application of special flame-retardant quenching oil

A quenching oil and flame retardant technology, applied in the field of heat treatment, can solve problems such as large smoke and fire, achieve high saturation, good oxidation resistance, and improve the production environment.

Inactive Publication Date: 2020-06-19
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] Aiming at the problem that the existing quenching oil tends to produce large smoke and fire during use, the present invention provides a special flame-retardant quenching oil for leaf springs. By optimizing the composition and proportion of the quenching oil, it is specially used for automobile leaf springs, etc. Quenching process for workpieces with good hardenability and large size, improving the phenomenon of large smoke and fire during the quenching process

Method used

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  • Special flame-retardant quenching oil for plate spring, and preparation method and application of special flame-retardant quenching oil
  • Special flame-retardant quenching oil for plate spring, and preparation method and application of special flame-retardant quenching oil
  • Special flame-retardant quenching oil for plate spring, and preparation method and application of special flame-retardant quenching oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A kind of leaf spring special flame retardant quenching oil of the present embodiment, its composition and the mass parts of each component are:

[0043] 50 parts of refined base oil;

[0044] 6 parts of refrigerant (the mixing mass ratio of polyisobutylene and polyol ester is 1:1);

[0045] Brightener (the mixing mass ratio of imidazoline oleate and methyl terpene resin is 2:1) 0.6 part;

[0046] 0.05 part of anti-oxidant (thionyl octyl zinc salt);

[0047] Surfactant (the mixing mass ratio of Span-80 and dioctyl sodium dibutyrate sulfonate is 1:1) 0.8 parts;

[0048] Flame retardant (the mixing mass ratio of dimethyl methylphosphonate and chlorinated paraffin is 2:1) 0.03 parts.

[0049] Among them, the refined base oil is primary or secondary hydrogenated base oil with a hydrogen content of 3-8%, and its kinematic viscosity is 14-25mm 2 / s, acid value ≤0.8mg KOH / g.

[0050] The preparation method of above-mentioned flame retardant quenching oil is as follows:

...

Embodiment 2

[0059] A kind of leaf spring special flame retardant quenching oil of the present embodiment, its composition and the mass parts of each component are:

[0060] 46 parts of refined base oil;

[0061] 8 parts of refrigerant (the mixing mass ratio of polyisobutylene and polyol ester is 2:1);

[0062] Brightener (the combined mass ratio of imidazoline oleate and methyl terpene resin is 2:1) 0.5 part;

[0063] 0.04 part of anti-oxidant (thionyl octyl zinc salt);

[0064] Surfactant (the mixing mass ratio of Span-80 and dioctyl sodium dibutyrate sulfonate is 1:1) 0.6 parts;

[0065] 0.02 parts of flame retardant (melamine cyanurate).

[0066] Among them, the refined base oil is primary or secondary hydrogenated base oil with a hydrogen content of 3-8%, and its kinematic viscosity is 14-25mm 2 / s, acid value ≤0.8mg KOH / g.

[0067] The preparation method of above-mentioned flame retardant quenching oil is as follows:

[0068] (1) Weigh 46 parts of refined base oil in proportion...

Embodiment 3

[0076] A kind of leaf spring special flame retardant quenching oil of the present embodiment, its composition and the mass parts of each component are:

[0077] 42 parts of refined base oil;

[0078] 10 parts of refrigerant (the mixing mass ratio of polyisobutylene and polyol ester is 3:2);

[0079] Brightener (the combined mass ratio of imidazoline oleate and methyl terpene resin is 2:1) 0.4 part;

[0080] 0.04 part of anti-oxidant (thionyl octyl zinc salt);

[0081] Surfactant (the mixing mass ratio of Span-80 and dioctyl sodium dibutyrate sulfonate is 1:1) 0.5 part;

[0082] 0.02 parts of flame retardant (resorcinol bis-diphenyl phosphate).

[0083] Among them, the refined base oil is primary or secondary hydrogenated base oil with a hydrogen content of 3-8%, and its kinematic viscosity is 14-25mm 2 / s, acid value ≤0.8mg KOH / g.

[0084] The preparation method of above-mentioned flame retardant quenching oil is as follows:

[0085] (1) Weigh 42 parts of refined base oi...

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Abstract

The invention discloses special flame-retardant quenching oil for a plate spring, and a preparation method and application of the special flame-retardant quenching oil, and belongs to the technical field of heat treatment. The special flame-retardant quenching oil comprises the following components in parts by mass: 40-50 parts of refined base oil, 6-10 parts of a cooling accelerant, 0.3-0.6 partof a brightening agent, 0.03-0.05 part of an antioxidant, 0.4-0.8 part of a surfactant and 0.01-0.03 part of a flame retardant, wherein the flame retardant is an oil-soluble flame retardant. The preparation method comprises the following steps of firstly mixing and uniformly stirring the refined base oil, the surfactant, the antioxidant and the flame retardant, adding the brightening agent, uniformly stirring, adding the cooling accelerant in a manner of adding while stirring, uniformly stirring, and standing to room temperature to obtain the quenching oil. For the automobile plate spring, lampblack and open fire generated in the process that quenching oil enters the automobile plate spring can be reduced, consumption of the quenching oil is reduced, and the workshop production environmentis improved.

Description

technical field [0001] The invention belongs to the technical field of heat treatment, and more specifically relates to a special flame-retardant quenching oil for leaf springs and its preparation method and application. Background technique [0002] At present, quenching oil is required for quenching workpieces with good hardenability such as medium and high carbon alloy steels, especially automobile leaf springs, and the time for larger workpieces to be completely immersed in quenching oil during quenching Long, easy to produce large smoke and fire, many workpieces of materials and sizes need to use quenching oil, and quenching oil is also one of the most commonly used quenching media. Quenching oil has the characteristics of high flash point and high ignition point. It also has excellent cooling properties to ensure that the quenched parts have a certain hardness and qualified metallographic structure, which can prevent parts from deformation and cracking. The main advan...

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 陈振宇刘进刘自强郑景亮史传喜郑益
Owner 马鞍山金泉工业介质科技有限公司
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