Heat resistant lubricant used for drawing refractory metal and preparation method thereof

A technology of high temperature resistant lubricants and refractory metals, applied in the direction of lubricating compositions, etc., can solve the problems of broken wires, scratches, low yield rate, etc., and achieve the effects of maintaining uniformity, improving lubricity, and improving utilization rate

Inactive Publication Date: 2015-03-11
GUANGDONG DONGGUAN TEAMRUN ELECTRONICS MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The temperature in the high-temperature drawing process is between 400-1200°C. The graphite milk used is made of syrup and agar as a film-forming agent. It is easy to burst and fall off at high temperatures, resulting in large friction between the drawn material and the mold. Disadvantages such as broken wire, scratches, poor consistency of wire diameter, low yield rate and large mold loss

Method used

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  • Heat resistant lubricant used for drawing refractory metal and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A high-temperature-resistant lubricant for refractory metal drawing, which is prepared from the following raw materials in weight percentage:

[0039] Graphite 12%, polyvinyl alcohol 0.6%, sodium carboxymethylcellulose 0.55%, Tween 0.1%, styrene acrylic emulsion 6%, polyethylene glycol 2%, sodium metasilicate 5%, 5,5-di Methylhydantoin 0.3%, ammonia water 4%, pure water to 100%;

[0040] Its preparation process is as follows:

[0041] 1) Prepare graphite powder

[0042] Pulverization: After the natural flake graphite is pulverized by air flow, the Z-30 bead mill is used to circulate the bead mill for 15-25 hours for wet pulverization;

[0043] Classification: The crushed graphite powder is centrifugally classified by a horizontal rough separator, and graphite particles with a particle size of less than 5 μm are screened out, and then subjected to high-speed centrifugal separation by a fine separator at 5000-6000 rpm to obtain graphite particles with a particle size of...

Embodiment 2

[0047] A high-temperature-resistant lubricant for refractory metal drawing, which is prepared from the following raw materials in weight percentage:

[0048] Graphite 19%, sodium methylene bis-naphthalene sulfonate 0.5%, sodium alginate 0.7%, sodium carboxymethylcellulose 0.75%, polyethylene glycol 2.6%, 5,5-dimethylhydantoin 0.3%, ammonia water 4.5%, sodium metasilicate 8%, pure water to make up to 100%;

[0049] Its preparation process is as follows:

[0050] 1) Prepare graphite powder

[0051] Pulverization: After the natural flake graphite is pulverized by air flow, the Z-30 bead mill is used to circulate the bead mill for 15-25 hours for wet pulverization;

[0052] Classification: The crushed graphite powder is centrifugally classified by a horizontal rough separator, and graphite particles with a particle size of less than 5 μm are screened out, and then subjected to high-speed centrifugal separation by a fine separator at 5000-6000 rpm to obtain graphite particles wit...

Embodiment 3

[0056] A high-temperature-resistant lubricant for refractory metal drawing, which is prepared from the following raw materials in weight percentage:

[0057] Graphite 22%, sodium methylene bis-naphthalene sulfonate 0.6%, sodium carboxymethyl cellulose 0.65%, sodium alginate 0.68, polyvinyl alcohol 0.5%, polyethylene glycol 3%, 5,5-dimethyl seawater Because 0.5%, ammonia water 5%, sodium metasilicate 10%, pure water make up to 100%;

[0058] Its preparation process is as follows:

[0059] 1) Prepare graphite powder

[0060] Pulverization: After the natural flake graphite is pulverized by air flow, the Z-30 bead mill is used to circulate the bead mill for 15-25 hours for wet pulverization;

[0061] Classification: The crushed graphite powder is centrifugally classified by a horizontal rough separator, and the graphite particles with a particle size of less than 5 μm are screened out, and then subjected to high-speed centrifugal separation by a fine separator at 5000-6000 rpm t...

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Abstract

The invention discloses a heat resistant lubricant used for drawing refractory metal and a preparation method thereof. The heat resistant lubricant comprises the following components by weight: 10-30% of graphite, 0.1-2% of dispersant, 0.3-5% of thickening agent, 0.1-15% of emulsifier, 0.5-10% of film forming agent, 2-5% of ammoniacal liquor with concentration of 25%, 0.1-1% of antiseptic, 0.1-2% of adhesive, 0.3-3% of surfactant and balance of water. The heat resistant lubricant has good adhesive force under high temperature and can not generate explosion and shedding, lubricity, thermal conductivity and surface antioxidation performance between the drawing material and a mold can be effectively increased, heat due to friction can be reduced, and usage life of the mold can be prolonged.

Description

technical field [0001] The invention relates to additives used in the technical field of high-temperature wire drawing of refractory metals, in particular to a high-temperature-resistant lubricant for drawing refractory metals and a preparation method thereof. Background technique [0002] Metal drawing is a plastic processing method that applies tension to a metal blank to pass through a die hole to obtain a product with the same cross-sectional size and shape as the die hole. It is the main method for producing pipes, bars, profiles and wires. The metal drawing method is divided into cold drawing, hot drawing and warm drawing according to the temperature of the metal during drawing; among them, cold drawing is the method used in the production of metal wire and metal wire, and is suitable for metal materials with low melting point and good ductility; In the drawing process, the metal wire needs to be heated before entering the die hole, which is mainly used for the drawing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M173/02C10M177/00
Inventor 纪玉信孙成华张树鸿
Owner GUANGDONG DONGGUAN TEAMRUN ELECTRONICS MATERIAL
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