Composition for coating core die

A technology of composition and die, which is applied in coatings, anti-corrosion coatings, epoxy resin coatings, etc., can solve problems such as complicated operation, low finish, and reduced production efficiency

Inactive Publication Date: 2015-11-25
CHONGQING XIN CHUAN TA IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a composition for coating core dies, to solve the problems of large roughness and low finish of pipes produced in the prior art, and to replace the corresponding core dies according to the production of different types of pipes. The problem of complex operation and reduced production efficiency

Method used

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  • Composition for coating core die
  • Composition for coating core die
  • Composition for coating core die

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Experimental program
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Embodiment 1

[0017] Step 1, material preparation: it consists of the following components in parts by mass: polytetrafluoroethylene: 22 parts, op-10 emulsifier: 3 parts, phosphobisoctyl zinc salt: 10 parts, antioxidant: 0.3 Parts, cycloaliphatic epoxy resin: 1 part, accelerator: 0.5 parts, water: 40 parts;

[0018] Step 2, pulverizing the polytetrafluoroethylene in step 1 into a particle size of 80 mesh;

[0019] Step 3, the polytetrafluoroethylene obtained in step 2 and the op-10 emulsifier in step 1 are placed in a stirrer and stirred at a stirring speed of 120r / min for 5min, and the mixture A is taken out;

[0020] Step 4. Add the mixture in step 3 to the water in step 1, and heat at 130° C. for 15 minutes to obtain solution B;

[0021] Step 5. Put solution B into an ultrasonic oscillator with an oscillation frequency of 80-120Khz to oscillate and disperse to obtain solution C. The ultrasonic oscillator adopts the ultrasonic oscillator model KQ-300VDE produced by Shanghai Wuxiang Instr...

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Abstract

The application discloses a composition for coating a core die. According to the scheme, 22-35 parts of poly(tetrafluoroethylene) serving as a raw material is emulsified by an op-10 emulsifier to obtain a poly(tetrafluoroethylene) emulsion, and the poly(tetrafluoroethylene) emulsion is dissolved by 40-55 parts of water to obtain a poly(tetrafluoroethylene) solution with concentration of 55-63%. When alicyclic epoxy resin contacts the surface of the metal, high-strength chemical bonds are formed on the contact surface, and 1-5 parts of alicyclic epoxy resin solution is added in the formula, so that the product firmly adheres to the core die and does not fall. The wear resistance, corrosion resistance and antioxidation capability of the product are enhanced by zinc bisoctyl primary alkyl sulfate phosphate and the antioxidant. By implementing the scheme, the problem that the tubes produced in the prior art are high in roughness and low in smoothness as well as the problems of complicated operation and reduced production efficiency caused by replacing corresponding core dies according to the production of the tubes of different models are solved.

Description

technical field [0001] The invention relates to the field of pipe material processing, in particular to a composition for coating core dies. Background technique [0002] During the production and processing of pipes, the pipe raw materials need to be extruded from the extruder. The output end of the extruder is equipped with a core die. The core die includes a core die and a die. The die is located outside the core die. A space for pipes to pass is formed between the two. [0003] The traditional core die is made of metal in order to ensure its own strength or avoid the chemical reaction between the pipe and the core die. Because the temperature of the pipe in the extruder is very high, the plasticity of the pipe is strong. When it is made of metal During the contact process of the core die, the surface of the pipe will have a certain degree of adhesion with the metal surface, so that the roughness of the inner and outer surfaces of the pipe will increase and the smoothnes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D127/18C09D163/00C09D7/12C09D5/08
Inventor 徐科
Owner CHONGQING XIN CHUAN TA IND
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