What is the difference between TPU extrusion and injection molding?

Extrusion, also known as extrusion molding or extrusion, is also called extrusion in rubber processing. It refers to a processing method in which the material passes through the action between the barrel and the screw of the extruder, is plasticized while being pushed forward by the screw, and continuously passes through the machine head to make various cross-section products or semi-products.

Injection molding is a method of producing shapes for industrial products. Products are usually injection molded from rubber and plastic. Injection molding can also be divided into injection molding and die casting. Injection molding machine, referred to as injection machine or injection molding machine, is the main molding equipment for making thermoplastic or thermosetting materials into plastic products of various shapes by using plastic molding die. Injection molding is realized by injection molding machine and mold.

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What is Guide Pin ?

1.Definition of guide pin The guide pin is a guide element used in the mold in combination with the components to ensure that the mold moves and guides the mold stroke with precise positioning. They are generally cylindrical with shoulders and usually have oil grooves. 2.The material of the guide pin The material of the guide pin is generally selected from bearing steel, hot work die steel, easy car iron, etc., and the use of bearing steel SUJ2 is larger, which greatly enhances the durability and interchangeability of the guide post in terms of guiding performance. The guide post and components constitute the outer guide post component and the inner guide post component, which have a beautiful metallic luster. Heat treatment of guide post: HRC58-62; surface roughness of guide post: Ra0.8, Ra1.6. 3.Center hole of guide pin The roundness of the guide pin is very demanding. The central hole is mainly used to grind the outer diameter with a cylindr...

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Precision CNC Milling Service: What Factors Affect CNC Machining Cost?

How to save CNC milling costs? Why some custom CNC milling services are expensive? Firstly, we may need to know the cost factors for CNC milling services. 1)Stock Material As with any type of manufacturing, Stock material is the most basic cost. Some materials are more difficult to process than others, and some materials are more expensive as raw materials. The processing speed of some materials is much slower than others, even with the advancement of modern tools and mechanical technology. Some materials can wear out the expensive consumable cutting tools used more quickly, and can vary from one tool that makes hundreds or even thousands of parts to one part consuming multiple tools.Therefore, the material selection of your components can be a huge cost factor. 2)The Specification of CNC Machining Parts The size and overall geometry of the parts are of course important factors in the quotation of machining operations. Obviously, the larger the physical part, th...

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Functions of Guide Pins and Bushings

As machine tool accessories and mold parts , guide pins and bushings are in demand day after day in the development trend of various industries.In recent years, good-selling guide pins and bushings have been used in large numbers and widely, providing powerful and favorable market prospects for more industries.At the same time, in a variety of occasions, the guide pin and bushing have been unanimously favored and praised, and its role is immeasurable.So, let's take a look at its main functions in machine tools or molds ? 1.Orientation and positioning In the production of molds, good quality guide pins and bushings play an important role in this. Its mission in the production process is to guide and position. Moreover, in the process of moving mold and fixed mold, in order to make the mold appear in place and the whole work process does not cause errors and failures due to some problems, it is its mission to fully...

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