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
View PDF6 Cites 0 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Plastic extrusion screw rod of PC (poly carbonate) thin film

Examples

Experimental program
Comparison scheme
Effect test

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 ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
lengthaaaaaaaaaa
Login to view more

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap