Quenching oil capable of making fastener become black by itself after quenching and application method of quenching oil

A fastener and quenching oil technology, applied in the field of quenching oil, can solve the problems that the quenching and blackening processes cannot be carried out simultaneously, are prone to soft spots, and have a large deformation rate. Effect

Active Publication Date: 2016-09-28
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

[0005] Aiming at the existing problems such as large deformation rate, easy generation of soft spots, and inability to synchronize quenching and blackening processes in existing fastener quenching, the present invention provides a quenching oil capable of making fasteners self-blackening after quenching and its use method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A kind of quenching oil that can make fasteners self-blackening after quenching. Its composition and the mass parts of each component are: 40 parts of refined base oil, 7 parts of cooling reminder and compounding agent, 0.5 parts of blackening compounding agent, brightener 0.7 part, 0.7 part of surfactant, 0.03 part of antioxidant. Among them, the kinematic viscosity of refined base oil is 13-28mm 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 a short oil alkyd resin (purchased from Shanghai Yuanbang Paint Manufacturing Co., Ltd. ), a mixture of dyeing agent and wetting agent (mass ratio is 5:1:1); brightener is a mixture of imidazoline oleate and methyl terpene resin (mass ratio is 1:1); Black 9 (CAS No.12222-69-4); the wetting agent is fatty alcohol polyoxyethylene ether (the number of C atoms is 16-18; the degree of po...

Embodiment 2

[0050] A kind of quenching oil that can make fasteners self-blackening 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, 0.7 parts of blackening compounding agent, brightener 0.4 part, 0.8 part of surfactant, 0.02 part of antioxidant. Among them, the kinematic viscosity of refined base oil is 13-28mm 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 a short oil alkyd resin (purchased from Shanghai Yuanbang Paint Manufacturing Co., Ltd. ), a mixture of dyeing agent and wetting agent (mass ratio is 5:1:1); brightener is a mixture of imidazoline oleate and methyl terpene resin (mass ratio is 1:1); Black 9 (CAS No.12222-69-4); the wetting agent is fatty alcohol polyoxyethylene ether (the number of C atoms is 16-18; the degree of polymerizat...

Embodiment 3

[0068]A kind of quenching oil that can make fasteners self-blackening after quenching. Its composition and the mass parts of each component are: 38 parts of refined base oil, 10 parts of cold urging compounding agent, 0.6 parts of blackening compounding agent, brightener 0.8 part, 0.5 part of surfactant, 0.04 part of antioxidant. Among them, the kinematic viscosity of refined base oil is 13-28mm 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 a short oil alkyd resin (purchased from Shanghai Yuanbang Paint Manufacturing Co., Ltd. ), a mixture of dyeing agent and wetting agent (mass ratio is 5:1:1); brightener is a mixture of imidazoline oleate and methyl terpene resin (mass ratio is 1:1); Black 9 (CAS No.12222-69-4); the wetting agent is fatty alcohol polyoxyethylene ether (the number of C atoms is 16-18; the degree of polymerizat...

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Abstract

The invention discloses quenching oil capable of making a fastener become black by itself after quenching and an application method of the quenching oil, and belongs to the technical field of metal heat treatment. The quenching oil comprises, by mass, 35-40 parts of refined base oil, 7-10 parts of composite cooling accelerant, 0.5-0.7 part of a composite blacking agent, 0.4-0.8 part of a brightening agent, 0.5-0.8 part of a surface active agent and 0.02-0.04 part of antioxidant. The composite cooling accelerant is the mixture of polyisobutene, dimethyl naphthalene and mahogany petroleum sulfonate. The composite blacking agent is the mixture of short oil alkyd resin, a coloring agent and a wetting agent. The brightening agent is the mixture of imidazoline oleate and methyl terpene resin. The coloring agent is disperse black 9. The wetting agent is fatty alcohol-polyoxyethylene ether. The surface active agent is span-80. The optimal using temperature of the quenching oil ranges from 70 DEG C to 75 DEG C, the speed for cooling the fastener is moderate, a protection film is formed on the surface in a self-blacking manner during quenching, and efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of metal heat treatment, and more specifically relates to a quenching oil capable of making fasteners self-blackening after quenching and a using method thereof. Background technique [0002] Fasteners are also called standard parts in the market, which is a general term for a type of mechanical parts used when two or more parts (or components) are fastened and connected into a whole. The most common fasteners mainly consist of bolts and nuts. Generally, when medium-carbon steel is used for fasteners, three processes of quenching, tempering and blackening are mostly performed in a continuous mesh belt furnace, and surface treatment such as electroplating is performed after heat treatment. The quenching medium is selected from fast bright quenching oil or water-soluble polymer. quenching agent. Fast bright quenching oil is suitable for heat treatment of small-sized carbon steel and various alloy steel faste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/58C21D9/00C23C22/02
CPCC21D1/58C21D9/0068C23C22/02
Inventor 史传喜李海岩郑景亮刘进郑益刘凌
Owner 马鞍山金泉工业介质科技有限公司
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