Lubricant for drawing spring steel wire

A lubricant and spring steel technology, applied in lubricating composition, petroleum industry, etc., can solve the problems of easily damaged steel wire surface and failure to meet the requirements of multi-pass drawing, and achieve obvious changes in softening point, no toxic side effects, stable The effect of the drawing process

Active Publication Date: 2014-07-02
GUANGZHOU ORSA WIRE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional powdery lubricants are composed of lime soap, calcium stearate, and magnesium stearate. When drawing a spring steel wire without a phosphating film carrier on the surface, it is very easy to damage the surface of the steel wire, which cannot meet the requirements of the spring steel wire directly after shot peening. Pass drawing requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The components and proportions of the lubricant for spring steel wire drawing are (w / w): 46% calcium stearate, 49% softening point regulator, and 5% extreme pressure agent. 49% of the softening point regulator is made by mixing calcium hydroxide, titanium dioxide, sodium silicate, and semi-refined paraffin wax at 56°C in a ratio of 35:3:2:1. The extreme pressure agent is molybdenum dialkyldithiophosphate. Add the above components into a kneader, stir and heat to 180°C, melt and react for 1.5 hours, the product is crushed and sieved, and the particles of 0.038mm-2mm are selected to obtain a powder lubricant product. The laboratory data of the produced product is: the softening point is 130°C-220°C.

[0024] The lubricant product is used when the diameter of the wire rod is φ5.5mm, and the material is 55CrSi spring steel wire drawing. After the online continuous shot blasting equipment removes the oxide scale on the surface of the wire rod, the lubricant of this embodime...

Embodiment 2

[0027] The components and proportions of the lubricant for spring steel wire drawing are (w / w): 50% calcium fatty acid, 45% softening point regulator, and 5% extreme pressure agent. Among them, 45% of the softening point regulator is prepared by mixing calcium hydroxide, titanium dioxide, sodium silicate, and semi-refined paraffin wax at 56°C in a ratio of 35:3:2:1. The extreme pressure agent is zinc dialkyldithiophosphate.

[0028] Add the above components into a kneader, stir and heat to 180°C, and melt for 1.5 hours. The resultant is crushed and sieved, and the particles of 0.038mm-2mm are selected to obtain a powder lubricant product. The laboratory data of the produced product is: the softening point is 120°C-180°C. Lubricant products are used when the wire rod diameter is φ5.5mm-φ17mm, and the material is 55CrSi and 60Si2MnA spring steel wire drawing. After the online continuous shot blasting equipment removes the oxide scale on the surface of the wire rod, the lubrican...

Embodiment 3

[0030] The components and proportions of the lubricant for spring steel wire drawing are (w / w): 46% fatty acid calcium, 46% softening point regulator, and 8% extreme pressure agent. Among them, 46% of the softening point regulator is prepared by mixing calcium hydroxide, titanium dioxide, sodium silicate, and semi-refined paraffin wax at 56°C in a ratio of 35:3:2:1.

[0031] Add the above components into a kneader, stir and heat to 180°C, melt and react for 1.5 hours, the product is crushed and sieved, and the particles of 0.038-2mm are selected to obtain a powdery lubricant product. The laboratory data of the produced product is: the softening point is 130°C-190°C. Lubricant products are used when the wire rod diameter is φ5.5mm-φ17mm, and the material is 55CrSi and 60Si2MnA spring steel wire drawing. After the online continuous shot blasting equipment removes the oxide scale on the surface of the wire rod, the lubricant of this embodiment is directly used without any lubrica...

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Abstract

The invention provides a lubricant for drawing a spring steel wire. The lubricant for drawing the spring steel wire comprises the following components in percentage by weight: 40-60% of calcium stearate, 35-55% of softening point regulator and 5%-8% of extreme pressure additive, wherein the softening point regulator is one or more selected from calcium hydroxide, titanium dioxide, zinc oxide, sodium carbonate, sodium silicate, borax and paraffin. The lubricant is characterized in that the softening point of the lubricant changes obviously in a drawing process, and in the viscosity-temperature change of the lubricant, the lubricant is brought into a mold during drawing, and therefore, the requirements of the drawing process can be met. The lubricant has the advantages that the protection capacity of the lubricant on the surface of the steel wire is further improved, the subsequent heat treatment is not affected after drawing, no toxic or side effects are produced, a stable lubricating film can be formed on the surface of the steel wire under severe wire drawing conditions, and the wire drawing process is stabilized and the surface of the steel wire is protected against scratch.

Description

technical field [0001] The invention belongs to the field of lubricants, in particular to a lubricant composition for steel wire drawing. Background technique [0002] After oil quenching and tempering or water quenching and tempering heat treatment, spring steel wire has the advantages of good straightness, high strength, high yield ratio and good relaxation resistance. The main material of vehicle suspension springs, clutch springs and torsion bar springs, etc.). The traditional process of pre-processing of spring steel wire is: after the spring steel wire is pickled with sulfuric acid or hydrochloric acid solution to remove the oxide scale on the surface of the wire, a medium or high temperature phosphating method is used to make the surface adhere to a layer of phosphating film as a lubricant during the wire drawing process. The carrier of the lubricant, and then the lubricant composed of soap powder and borax (Li Fangcheng, Spring Steel Wire Production Technology, Meta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N30/06C10N40/24
Inventor 邢献强张俊杰
Owner GUANGZHOU ORSA WIRE SCI & TECH
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