Injection molding is the rapid injection of plastic melt into a closed mold cavity under high pressure, followed by cooling and shaping to obtain plastic products with exactly the same shape as the mold cavity. Injection molding needs to meet two essential conditions: firstly, plastic needs to be poured into the mold cavity in a molten state; The second is that the injected plastic melt needs to have sufficient pressure and flow rate to fully fill the mold cavity. Therefore, injection molding needs to have the basic functions of plastic plasticization, melt injection, and pressure retaining molding. (1) In the plasticizing process of injection molding, the solid plastic is continuously moved forward along the direction of the screw groove through the conveying effect of the rotating screw, and is heated

Plastic hand board models are used for CNC machining or 3D printing. The production methods are basically the same, but the processing methods are different. The processing techniques include design drawings, programming, CNC machining/3D printing, polishing, assembly, oil spraying, and silk screen printing. So, what should we pay attention to when making plastic hand board models? 1. Material selection: When making plastic hand boards, one should choose hand board model materials that are the same or similar to the materials used in actual plastic products to achieve the goal of accurately simulating the product. 2. Design details: When designing a prototype, special attention needs to be paid to product details, especially the appearance and shape of the product. And it should be as consistent as possible with the actual product for verification

3D printing is a low cost way to make manual models. Since the Winter Olympics, Bing Dwen Dwen has been a hot spot, which has created a difficult situation. At this time, someone thought of 3D printing. Let's talk about how to make Bing Dwen Dwen with 3D printing? 1、 If you want to print the 3D model drawing of Bing Dwen Dwen, you need to have a 3D model drawing. If you have the ability to model, you can build a 3D model drawing by yourself. If you don't have a 3D model drawing, you can only find it online. You can only print it in 3D if you have a 3D model drawing. 2、 Generally, enthusiasts who print based on 3D images do not have a 3D printer, so they can only find a 3D printing manufacturer to print the model. For surface quality and later coloring considerations, they usually choose light fixation

When designing industrial products, hand board models are commonly used for structural verification and exhibition purposes. The surface treatment of hand board models used for exhibition purposes is very important, and the key is the process. Below, we will introduce the basic steps of surface treatment for automotive hand boards: water transfer printing is the use of water pressure and activator to dissolve and transfer the peel layer on the water transfer carrier film. The basic process is as follows: 1 Film printing: printing various patterns on polymer films; 2、 Primer spraying: Many materials must be coated with a layer of adhesive, such as metal, ceramics, etc. To transfer different patterns, different base colors must be used, such as brown, coffee, earth yellow, etc. for wood grain, and yellow for stone grain