博文

目前显示的是 九月, 2019的博文

The key factor of plastic extrusion process - process stability

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The key factor of plastic extrusion process - process stability For the conventional extruders of various custom  plastic extrusion supplier , the following problems usually exist in use: 1. Improper control of process conditions and pulsation of motor load will cause fluctuations in temperature and pressure of the extruder, affecting the quality of the extruder. 2. With the increase of extrusion pressure, countercurrent flow and leakage flow will inevitably increase, making the whole extrusion flow rate decrease. At the same time, when the screw pushes the material, the power consumed will be large, the shear force on the material will be large, and the energy consumption will increase. 3. In the blending modification of polymer, it is necessary to increase the length of measuring section in order to make the extrusion have uniform temperature and pressure distribution, but this will increase the difficulty and cost of screw processing, and increase the residence time o...

Design requirements for plastic extruder screw

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Design requirements for plastic extruder screw Nowadays, in order to save production cost, improve product quality and give full play to the performance of plastic extrusion equipment, the key elements of extrusion process must be mastered. Each plastic products production and processing enterprises, especially given priority to with color printing plastic extrusion composite packaging film production of  custom plastic extrusion supplier , every senior technical management personnel, must want to know your business very well products to raw material properties, processing technology, the performance of the extrusion equipment, product quality control, productivity, lower production costs and some other related factors, however, in the many factors, one thing is most important. Namely; Nine important factors in extrusion process. This is every extrusion compound plastic manufacturers, all levels of technical management personnel must firmly grasp. For this, we through many ...

[Plastic extrusion supplier]The steps of plastic mold design

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The steps of plastic mold design shared by  plastic extrusion supplier . 1. Acceptance of assignment The task book of molding plastic parts is usually put forward by the product designer, and its contents are as follows: 1. The approved drawings shall be properly regulated, and the brand number and transparency of plastic shall be indicated. 2. Specification or technical requirements for plastic parts. 3. Production volume. 4. Samples of plastic parts. Usually the mold design task book is put forward by the plastic parts technologist according to the molding plastic parts task book, mold designers to mold plastic parts task book, mold design task book as the basis to design the mold. Collect, analyze and digest the original data Collect and organize the related parts design, forming process, forming equipment, mechanical processing and special processing data for the purpose of designing molds. 1. Digest the plastic parts diagram, understand the USES of plas...

What should be included in the final assembly drawing of plastic mold?

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What should be included in the final assembly drawing of plastic mold? As a  Customized Plastic Products Factory China , we would like to share it with you. 1. Mold forming part structure 2. Structure of casting system and exhaust system. 3. Parting surface and parting mode. 4. Shape, structure and all connecting parts, position and guide parts. 5. Mark the cavity height size (not required, as required) and the overall size of the mold. 6. Auxiliary tools (mold removal tools, calibration tools, etc.). 7. Number all parts in sequence and fill in the detailed form. 8. Label technical requirements and instructions. That's all for the sharing,and we supply  Custom PVC Plastic Extrusion Profile  for sale, if you have any demand for our products,just feel free to contact us.

[Plastic extrusion supplier]The steps of plastic mold design

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The steps of plastic mold design shared by  plastic extrusion supplier . 1. Acceptance of assignment The task book of molding plastic parts is usually put forward by the product designer, and its contents are as follows: 1.1. The approved drawings shall be properly regulated, and the brand number and transparency of plastic shall be indicated. 1.2. Specification or technical requirements for plastic parts. 1.3. Production volume. 1.4. Samples of plastic parts. Usually the mold design task book is put forward by the plastic parts technologist according to the molding plastic parts task book, mold designers to mold plastic parts task book, mold design task book as the basis to design the mold. 2. Collect, analyze and digest the original data Collect and organize the related parts design, forming process, forming equipment, mechanical processing and special processing data for the purpose of designing molds. 2.1. Digest the plastic parts diagram, understand the...

Plastic extrusion equipment - gate

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Plastic extrusion equipment - gate PVC plastic extrusion supplier  shares that it is the channel through which the mainstream (or shunt) is connected to the cavity. The cross-sectional area of the channel may be equal to that of the main flow channel, but is usually reduced. So it's the smallest part of the whole flow system. The shape and size of gate have great influence on the quality of products. The role of the gate is: A. control material flow speed: B. During the injection, the molten material stored in this part can be prevented from backflow due to early coagulation: C. Make the molten material passing through subject to strong shear and increase the temperature, thereby reducing the apparent viscosity and improving the fluidity: D. Facilitate the separation of products from the runner system. The shape, size and location of the gate depend on the nature of the plastic and the size and structure of the product. In general, the cross-section shape of the gat...