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A kind of PP raw material rod extrusion production process

A production process and raw material technology, which is applied in the field of PP raw material bar extrusion production process, can solve the problems of unstable product extrusion appearance, frequent disassembly and assembly of molds, low production efficiency, etc. Efficiency improvement effect

Inactive Publication Date: 2016-04-20
深圳市恩欣龙特种材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0028] The problems of this method are: 1. The extrusion appearance of the product is not stable enough, and the mold needs to be disassembled frequently; 2. The pass rate is low and the waste is serious; 3. The production efficiency is low

Method used

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  • A kind of PP raw material rod extrusion production process

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Embodiment Construction

[0071] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0072] Such as figure 1 Shown, the PP raw material rod extrusion production process of the embodiment of the present invention, it comprises the following steps:

[0073] The first step, feeding process

[0074] Feed in time to ensure that the hopper is not empty, so as to prevent the air from directly entering the drying circulation fan and affecting the drying return air speed. Different materials cannot be mixed. Pay attention to distinguish the grade and type of materials to prevent sundries and miscellaneous materials from entering the hopper and causing blockage of the discharge port.

[0075] The second step, extrusion process

[0076]A single-screw extruder is used, and the extrusion barrel is heated by electromagnetic induction. A coil ...

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Abstract

The invention relates to the technical field of polypropylene, in particular to a PP raw material rod extrusion production process. It includes the following steps: feeding process; extrusion process; exhaust process; forming / shaping process; traction / braking process; board cutting / stacking process; heat treatment process. The PP raw material rod extrusion production process provided by the present invention has stable extruded products, can be continuously produced, the pass rate of the product is greatly improved, and the scrap rate is reduced; at the same time, the production efficiency is greatly improved, saving energy and consumption , reducing production costs.

Description

technical field [0001] The invention relates to the technical field of polypropylene, in particular to a PP raw material rod extrusion production process. Background technique [0002] In the past, the production process of POM raw material rods was: feeding process, drying process, extrusion process, forming / setting process, braking process, cutting board / stacking process, heat treatment process. [0003] 1. Feeding process [0004] Feed in time to ensure that the hopper is not empty, so as to prevent the air from directly entering the drying circulation fan and affecting the drying return air speed. Different materials cannot be mixed. Pay attention to distinguish the grade and type of materials to prevent sundries and miscellaneous materials from entering the hopper and causing blockage of the discharge port. [0005] 2. Drying process [0006] Due to the high temperature absorption of PP resin, it must be dried before extrusion molding to remove water, otherwise its w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C47/00B29C47/92B29C48/92
CPCB29C48/92B29C2948/92142
Inventor 刘福华
Owner 深圳市恩欣龙特种材料股份有限公司