PBT plastic extrusion processing method
A processing method and plastic technology, applied in the field of PBT plastic processing, can solve the problems of local temperature drop, performance degradation and product delamination of PBT molten materials, and achieve the effect of avoiding local temperature drop and excellent performance.
Pending Publication Date: 2022-04-22
深圳市恩欣龙特种材料股份有限公司
View PDF2 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The technical problem to be solved by the embodiments of the present invention is: in the existing PBT board extrusion molding process, due to inaccurate control of the temperature of the barrel, it is very easy to cause a local temperature drop of the PBT molten material, resulting in product delamination and performance degradation. question
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention, and similar component numbers in the drawings represent similar components. Apparently, the embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0026] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude one or Presence or addition of multiple other features, integers, steps, operations, elements, components and / or col...
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
Login to View More Abstract
The embodiment of the invention discloses a PBT plastic extrusion processing method, and relates to the technical field of PBT plastic processing.The method comprises the steps that the first temperature of a gun barrel feeding section, the second temperature of a melting compression section, the third temperature of a homogenizing section and the fourth temperature of a connector are obtained; whether the first temperature, the second temperature, the third temperature and the fourth temperature meet set conditions or not is judged, and the set conditions are that the first temperature, the second temperature, the third temperature and the fourth temperature are increased in sequence; if not, at least one of the first temperature of the feeding section, the second temperature of the melting compression section, the third temperature of the homogenizing section and the fourth temperature of the connector is adjusted, and it is ensured that the temperature of the feeding section is larger than the temperature of the melting compression section, the temperature of the homogenizing section is larger than the temperature of the connector, so that local temperature reduction of the PBT material in the molten state can be effectively avoided; therefore, the PBT material does not have a layering phenomenon, and the PBT plastic is isotropic in performance and more excellent in performance.
Description
technical field [0001] The invention relates to the technical field of PBT plastic processing, in particular to a PBT plastic extrusion processing method. Background technique [0002] PBT (polybutylene terephthalate, polybutylene terephthalate), is a commonly used engineering plastic, widely used. The extrusion molding of PBT board is to add granular materials into the barrel of the extruder from the hopper, and the materials are conveyed forward and compacted by the friction between the inner wall of the barrel and the surface of the screw under the extrusion force of the screw rotation. The heating device and friction preheating on the outside of the barrel melt and plasticize under high temperature and high pressure conditions. Then, the continuously rotating screw pushes the molten material into the mold of the die, and the molten material extruded from the die is cooled and shaped into the desired PBT product. [0003] PBT is very sensitive to temperature in the molt...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): B29C48/92
CPCB29C48/92B29C2948/92704B29C2948/92876B29C2948/92895B29C2948/92904
Inventor 黄锡成
Owner 深圳市恩欣龙特种材料股份有限公司