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Production process of double-shaft orientated polyvinyl fluoride pipe material

A technology of biaxial orientation and polyvinyl fluoride, which is applied in the chemical industry, tubular articles, sustainable manufacturing/processing, etc., can solve the problems of not meeting production requirements and reducing the degree of orientation of pipes, so as to ensure product quality, save energy, The raw material is environmentally friendly and easy to obtain

Inactive Publication Date: 2018-05-08
ZHANGJIAGANG BEIER MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the traction belt used in the production of formed pipes in the existing process only acts on the drawing of the tube billet, and the formed pipe is not equipped with heavy-duty equipment for traction, so that the pipe may have de-orientation, which further causes the degree of pipe orientation to be greatly reduced. meet production requirements

Method used

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  • Production process of double-shaft orientated polyvinyl fluoride pipe material
  • Production process of double-shaft orientated polyvinyl fluoride pipe material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The composition of a biaxially oriented polyvinyl fluoride pipe is: 100 parts of PVC matrix resin, 3 parts of stabilizer, 2 parts of processing aid, 3 parts of toughening agent, 0.75 parts of lubricant, 2 parts of titanium dioxide, 0.04 parts of carbon black share.

Embodiment 2

[0020] The composition of a DN110 PN2.0 specification biaxially oriented polyvinyl chloride pipe is: 100 parts of PVC matrix resin (SG-5), 3.5 parts of stabilizer (stabilizer for calcium zinc and mercaptan methyl tin compound), processed Additive (ACR 301) 1.3 parts, toughening agent (ACR impact modifier) ​​3.5 parts, internal lubricant (solid lubricant of stearic acid complex alcohol ester) 0.45 parts, external lubricant (oxidized polyethylene wax) 0.35 parts, titanium dioxide (rutile titanium dioxide R-2196) 2.5 parts, carbon black 0.03 parts.

Embodiment 3

[0022] The composition of a DN225 PN1.6 biaxially oriented polyvinyl chloride pipe is: 100 parts of PVC matrix resin (SG-4), 3 parts of stabilizer (stabilizer for calcium zinc and mercaptan methyl tin composite), processing Auxiliary (ACR401) 2 parts, toughening agent (ACR impact modifier) ​​2.75 parts, internal lubricant (solid lubricant of stearic acid complex alcohol ester) 0.45 parts, external lubricant (oxidized polyethylene wax) 0.35 parts parts, titanium dioxide (rutile titanium dioxide R-2196) 1.7 parts, carbon black 0.035 parts.

[0023] A biaxially oriented polyvinyl fluoride pipe is completed through the following preparation process steps: (1) Add the above-mentioned raw materials to a high-speed mixer in the proportion shown, and use the high-speed mixer blades to fully mix the raw materials to a uniform state, and ensure the temperature of the mixture When it reaches 120~125°C, put the mixture into the low-speed cold mixer again, and when the temperature of the m...

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Abstract

The invention relates to the technical field of engineering plastic double-shaft orientated polyvinyl fluoride pipe forming, in particular to a production process of a double-shaft orientated polyvinyl fluoride pipe material. The double-shaft orientated polyvinyl fluoride pipe material is prepared by the following preparation process steps: completely mixing raw materials by a high-speed stirringmachine to a uniformly state, putting the mixture into a low-temperature mixing machine, performing double-shaft orientated forming processing on a base pipe, performing orientated stretching on the processed base pipe blank slowly by virtue of a heating furnace, feeding into a diameter-fixing sleeve after stretching, shaping the pipe material under the action of gas pressure, and cutting, flaringand detecting after shaping. By adoption of the technical scheme, the production process of the double-shaft orientated polyvinyl fluoride pipe material has the following beneficial effects: the quality of products in the production process is guaranteed, the raw materials are environment-friendly and easily available, the production efficiency is improved in the process of processing into the finished products, safety and reliability are achieved, energy is saved and the structure is stable.

Description

technical field [0001] The invention relates to the technical field of forming engineering plastic biaxially oriented polyvinyl fluoride pipes, in particular to a production process for biaxially oriented polyvinyl fluoride pipes. Background technique [0002] Polyvinyl chloride (PVC) pipe is widely used in industrial and agricultural production and other fields due to its light weight, corrosion resistance, excellent insulation performance, convenient construction, easy access to raw materials, and low price of finished products. It is closely related to people's daily life, but With the continuous development and improvement of other types of materials (such as PE pipes, etc.), traditional PVC pipes do not have many advantages compared with emerging plastic pipes in terms of various performance indicators. Due to the disadvantage of low toughness, the redevelopment of PVC pipes has become the only way for PVC pipes to win the competition in the plastic market. [0003] No...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L33/04C08L23/30C08K13/02C08K3/22C08K3/04B29D23/00
CPCB29D23/001C08K2003/2241C08L27/06C08L2203/18C08L2205/025C08L2205/035C08L33/04C08L23/30C08K13/02C08K3/22C08K3/04Y02P20/10
Inventor 何德方王琪方海峰缪呈上刘圣炜
Owner ZHANGJIAGANG BEIER MACHINERY
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