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Electric field type polymer extruder head

A technology of polymers and extruders, which is applied in the field of improvement of screw extruder heads, and can solve the problems of reduced stability of extrusion products extruded by extruders, increased manufacturing costs of extruders, and high prices.

Inactive Publication Date: 2004-12-22
DONGHUA UNIV
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  • Application Information

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Problems solved by technology

However, judging from current research, the degree of progress in this area is approaching the ultimate limit of its potential.
On the other hand, the purpose of improving the fluidity of the melt is to apply vibration force. It is common to install ultrasonic vibration components or electromagnetic wave vibration components on the die. However, after the vibration force is applied, the surface of the extruded product is prone to ripples, while The surface of the product is not smooth, which affects the appearance quality of the finished product; and the stability of the extruder when extruding the product is reduced due to the application of vibration force; at the same time, due to the high price of auxiliary devices such as ultrasonic generators and electromagnetic wave generators, resulting The manufacturing cost of the extruder increases, which also increases the complexity of the operation

Method used

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  • Electric field type polymer extruder head
  • Electric field type polymer extruder head
  • Electric field type polymer extruder head

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] The head of an electric field polymer extruder proposed by the present invention has a connecting flange 3 and its external heating jacket 2 and a stopper 10 embedded in the inner wall of the connecting flange 3, and the connecting flange 3 and the stopper 10 1. The melt channel 11 formed by the smooth connection of the die core 12 and the die seat 13 are composed of an electrode plate 6 and an electrode plate 15 for applying a voltage around the melt channel 11 .

[0020] An electric field type polymer extruder head, the electrode plate 6 is located between the upper insulating pad 4 and the stopper 10 connecting the inner wall of the flange 3, and the other electrode plate 15 is located in the die core forming the melt flow channel 11 12 between the lower end and the lower insulating pad 16; the die core 12 is placed in the die seat 13, which is connected with...

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Abstract

An electric field type extruding head of polymer extruder features that a pair of plate electrodes are arranged on the ordinary extruding head for applying pulse or DC voltage across them to generate an electric field, which can orient the macro-molecular chains and molecular chains in fused polymer, lowering the viscosity of fused polymer and decreasing the extruding pressure.

Description

technical field [0001] The invention belongs to the field of polymer material molding processing, and specifically refers to an improvement of a head of a screw extruder. Background technique [0002] Polymer material is a rising star in the field of materials. It mainly includes three categories: synthetic resin and plastic, synthetic fiber and synthetic rubber. Corrosion, high specific strength, excellent electrical properties, and easy processing into various beautiful and colorful products have become an indispensable and important component of the material industry, and it is the most active high-tech field in the material industry. [0003] At present, the application field of plastics is gradually expanding, involving all aspects of the national economy and even people's daily life, such as replacing metal materials such as steel, copper, aluminum, wood, ceramics, glass, leather, paper, lacquerware, rubber, Stone and so on. In addition, plastics can also be made int...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/12B29C48/30
Inventor 张娟万玉芹何吉欢朱友升
Owner DONGHUA UNIV
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