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A High Temperature Forging Lubricant Containing Layered Nanoparticles

A nano-particle and lamellar technology, applied in lubricating compositions, additives, petroleum industry, etc., can solve the problems of easy adhesion between workpieces and molds, difficult to demold forgings, poor surface quality of forgings, and poor adsorption of micro-particles. Conducive to rheological deformation, excellent forging surface, and the effect of reducing wear

Active Publication Date: 2017-12-15
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in the hot die forging process, due to the effect of high temperature and high pressure, the adhesion between the workpiece and the mold is very easy to occur, resulting in difficulty in demoulding or extremely poor surface quality of forgings
[0003] At present, the commonly used forging lubricants are water-based or oil-based forging lubricants prepared by adding micron solid lubricating powder to water medium or oil medium, but such forging lubricants often appear due to the existence of micron particles. Solid-liquid delamination during storage, uneven surface coating and nozzle clogging during spraying, and the adsorption of these micron particles on the surface of workpieces and molds is very poor, often requiring a large amount of lubricant, which leads to Form a large amount of powder, thereby polluting the environment

Method used

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  • A High Temperature Forging Lubricant Containing Layered Nanoparticles
  • A High Temperature Forging Lubricant Containing Layered Nanoparticles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The high-temperature die forging lubricant of the present embodiment, the weight percentage proportioning of each component is as follows:

[0019] Nano WS 2 6.0%

[0020] Graphene microflakes 0.5%

[0021] Nano boron nitride 9.5%

[0022] Polyisobutylene succinimide 8.0%

[0023] Mineral oil 60.8%

[0024] Polyol ester 15.2%

[0025] The high-temperature die forging lubricant can be prepared after mixing and stirring the above-mentioned components under the action of ultrasonic waves for 30 minutes. The coefficient of friction of the die forging lubricant at different temperatures is shown in the table below.

[0026] Friction coefficient of die forging lubricant at different temperatures

[0027] temperature / ℃

Embodiment 2

[0029] The high-temperature die forging lubricant of the present embodiment, the weight percentage proportioning of each component is as follows:

[0030] Nano WS 2 8.0%

[0031] Graphene microflakes 1.5%

[0032] Nano boron nitride 10%

[0033] Polyisobutylene succinimide 10%

[0034] Mineral oil 56.4%

[0035] Polyol ester 14.1%

[0036] The high-temperature die forging lubricant can be prepared after mixing and stirring the above-mentioned components under the action of ultrasonic waves for 30 minutes. The coefficient of friction of the die forging lubricant at different temperatures is shown in the table below.

[0037] Friction coefficient of die forging lubricant at different temperatures

[0038] temperature / ℃

Embodiment 3

[0040] The high-temperature die forging lubricant of the present embodiment, the weight percentage proportioning of each component is as follows:

[0041] Nano WS 2 10%

[0042] Graphene microflakes 1.0%

[0043] Nano boron nitride 12%

[0044] Polyisobutylene succinimide 11%

[0045] Mineral oil 52.8%

[0046] Polyol ester 13.2%

[0047] The high-temperature die forging lubricant can be prepared after mixing and stirring the above-mentioned components under the action of ultrasonic waves for 30 minutes. The coefficient of friction of the die forging lubricant at different temperatures is shown in the table below.

[0048] Friction coefficient of die forging lubricant at different temperatures

[0049] temperature / ℃

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Abstract

The invention provides an oil-based die forging lubricant, which is characterized in that each component and its weight percentage are as follows: 15-20% of lamellar nanoparticles, 7-11% of dispersant, and the balance is base oil, wherein The lamellar nanoparticles are nano WS2, graphene microflakes and nano boron nitride. The mass percentage content in the high temperature forging lubricant is 6%-10% of nano WS2, 0.5%-1.5% of graphene microflakes, and nano Boron nitride 8%‑12%. The invention is a die forging lubricant suitable for high temperature die forging. In the process of high temperature die forging, the film-forming performance is excellent. The friction layer can effectively reduce the wear of the die and improve the surface quality of the forging.

Description

technical field [0001] The invention belongs to the technical field of die forging, and in particular relates to a die forging lubricant suitable for high temperature die forging. Background technique [0002] Die forging is a forging method that uses a die to form a workpiece through compression to obtain a forging. The friction and wear between the workpiece and the die has a great impact on the forging capacity, energy consumption, die life, forging quality and cost of the forging press. It is necessary to increase the fluidity of the metal, reduce the deformation resistance, prolong the life of the die and improve the quality of forgings by improving the interface lubrication between the workpiece and the die. Therefore, die forging lubricants are indispensable in the process of die forging. Especially in the hot die forging process, due to the effect of high temperature and high pressure, the adhesion between the workpiece and the mold is very easy to occur, resulting ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M161/00C10N40/24C10N30/08C10N30/06
Inventor 石琛毛大恒毛向辉
Owner CENT SOUTH UNIV