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Plastic extrusion screw rod of PC (poly carbonate) thin film

A technology for extruding screw and plastic, which is applied in the field of plastic extrusion screw, which can solve the problems of poor plasticization of materials, affecting quality, equipment maintenance and service life, and peeling off of the chrome layer on the surface of the screw, so as to avoid shear decomposition and shorten plastic melting time, reducing the effect of melt crystal point

Inactive Publication Date: 2013-12-25
昆山地博光电材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The barrel screw made of ordinary steel, PC material is prone to poor plasticization, impurities, crystal points, and chrome plating on the surface of the screw during the plasticizing extrusion molding process, which seriously affects the quality, equipment maintenance and service life.

Method used

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  • Plastic extrusion screw rod of PC (poly carbonate) thin film

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0019] see figure 1 As shown, a plastic extruding screw of PC film is made of 48CrMo steel as a whole, including a screw main body 1, a feed section A, a melting section B, a compression section C, and an extrusion section D. The screw main body 1 The length is 40-45cm, the feeding section A, the melting section B, the compression section C, and the extrusion section D are provided with raised threads, and the feeding section A is provided with a thread 2, and the thread 2 adopts a gradual change Root diameter structure, the melting section B is provided with a main thread 3, the main thread 3 adopts a cross gradient root diameter structure, the compression section C is provided with a secondary thread 4, and the extrusion section D adopts a spiral convex nail 5 structures.

[0020] The above descriptions are only preferred embodiments of the ...

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Abstract

The invention discloses a plastic extrusion screw rod of a PC (poly carbonate) thin film. The whole plastic extrusion screw rod is made of a 48CrMo rolled steel and comprises a screw rod main boy (1), a feeding section (A), a fusion section (B), a compression section (C) and an extrusion section (D), the plastic extrusion screw rod is characterized in that the length of the screw rod main boy (1) is 40-45cm, and the feeding section (A), the fusion section (B), the compression section (C) and the extrusion section (D) are provided with embossing threads. The plastic extrusion screw rod provided by the invention has the advantages that the capacity is greatly improved and can achieve 400-450KG / h, and the maintenance cost of equipment is reduced under the premise that the product quality is met.

Description

technical field [0001] The invention relates to the technical field of PC films, in particular to a plastic extrusion screw for PC films. Background technique [0002] PC optical film has the characteristics of good light transmission, good toughness, and good temperature resistance. The surface is treated with mirror calendering. It is usually used in the production of lenses, light guide plates and other occasions that require extremely high optical performance. Therefore, its production process requires Very high, surface impurities, crystal points and other bad states have strict control standards. [0003] The barrel screw made of ordinary steel, PC material is prone to poor plasticization, impurities, crystal points, and chrome plating on the surface of the screw during the plasticizing extrusion molding process, which seriously affects the quality, equipment maintenance and service life. Contents of the invention [0004] The technical problem to be solved by the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/60B29K69/00B29L7/00B29C48/64
CPCB29C48/565B29C48/64
Inventor 吴小珍
Owner 昆山地博光电材料有限公司
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