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High-voltage electric power casing and pipe of chlorinated polyvinyl chloride and their production process

A chlorinated polyvinyl chloride, high-voltage power technology, which is applied to tubular articles, other household appliances, applications, etc., can solve the problems affecting the quality of buried pipeline works, road construction rolling, low strength and toughness, etc. Improved tensile yield strength and good mechanical properties

Inactive Publication Date: 2003-02-26
周辉 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it has the characteristics of corrosion resistance, light weight and low cost, its heat resistance temperature does not exceed 50°C, its strength and toughness are small, and it is easily broken when the road surface is rolled, which will affect the engineering quality of buried pipelines.

Method used

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  • High-voltage electric power casing and pipe of chlorinated polyvinyl chloride and their production process
  • High-voltage electric power casing and pipe of chlorinated polyvinyl chloride and their production process
  • High-voltage electric power casing and pipe of chlorinated polyvinyl chloride and their production process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Production casing:

[0038] (1) Ingredients: (by weight) chlorinated polyvinyl chloride resin powder: 100, nano-polyvinyl chloride resin: 8, heat stabilizer: 3, lubricant: 2, impact modifier: 8, processing modification Reactive agent: 2, flame retardant: 4, nano calcium carbonate: 3 mixed preparation;

[0039] (2) Stirring: Stir the prepared raw materials in a high-speed mixer until the temperature reaches 100-105°C, then stir in a low-speed cooling mixer to cool down to 60°C, and discharge for later use;

[0040] (3) sieve, use vibrating type sieve machine to sieve and reach 40 orders;

[0041] (4) Extrusion: Extrude the billet with a φ65 or φ55 twin-screw extruder, specifically using the German general temperature control method, that is, from the first area of ​​the fuselage (185°C) to the confluence core (165°C), the temperature is constant Decrease, and then from the confluence core to the die, the operating temperature continues to rise (160-180°C);

[0042...

Embodiment 2

[0054] (1) Process steps for producing casing:

[0055] (1) Ingredients: (by weight) chlorinated polyvinyl chloride resin powder: 100, nano-polyvinyl chloride resin: 12, heat stabilizer: 3.5, lubricant: 3, impact modifier: 10, processing modification Reactive agent: 2.5, flame retardant: 3, nano calcium carbonate: 3 mixed preparation;

[0056] (2) Stirring: Stir the prepared raw materials in a high-speed mixer until the temperature reaches 100-105°C, then stir in a low-speed cooling mixer to cool down to 60°C, and discharge for later use;

[0057] (3) sieve, use vibrating type sieve machine to sieve and reach 40 orders;

[0058] (4) Extrusion: Extrude the billet with a φ65 or φ55 twin-screw extruder, specifically using the German general temperature control method, that is, from the first area of ​​the fuselage (185°C) to the confluence core (165°C), the temperature is constant Decrease, and then from the confluence core to the die, the operating temperature continues to ris...

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PUM

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Abstract

The present invention is high-voltage electric power casing pipe and pipe fitting of chlorinated polyvinyl chloride and their production process. The electric power casing pipe is produced with chlorinated polyvinyl chloride resin powder, nanometer polyvinyl chloride resin, heat stabilizer, lubricant, impact resisting modifier, machining modifier, fire retardant and nanometer calcium carbonate. The main components for the pipe fitting includes chlorinated polyvinyl chloride resin powder, nanometer polyvinyl chloride resin, heat stabilizer, lubricant, impact resisting modifier, machining modifier, fire retardant and nanometer calcium carbonate. The present invention has no heat decomposition problem; is anticorrosive, heat resistant, good in mechanical performance; and may be used for cable casing pipes in post and telecommunication and high-voltage power.

Description

technical field [0001] The invention relates to a bushing for underground wire embedding, in particular to a chlorinated polyvinyl chloride high-voltage power bushing, a pipe fitting and a production method thereof. Background technique [0002] At present, most of the underground pipes used in urban construction are made of polyvinyl chloride materials, such as pressure-bearing sanitary pipes and pipe fittings for urban construction, water supply and drainage pipes and pipe fittings for buildings, porous casings for electric power, high-voltage cable pipes, and sky pipes. Gas gas pipes, etc., are all made of polyvinyl chloride. Although it has the characteristics of corrosion resistance, light weight and low cost, its heat resistance temperature does not exceed 50°C, its strength and toughness are small, and it is easily broken when the road surface is rolled and rolled, thus affecting the engineering quality of buried pipelines. Contents of the invention [0003] The te...

Claims

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Application Information

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IPC IPC(8): B29D23/00C08K3/26C08L27/06
Inventor 周辉强越强兆恒
Owner 周辉