(1) Drawbacks of Polishing Quality Issues1) The edge of the cavity’s inner hole may have collapsed corners, mixed angles, or bruises, and after polishing, the opening of the inner hole may enlarge (c...
(1) Layout of the venting1) For injection molding machines with a clamping force of 1000 kN or below, the distance between the venting should be 50mm; for machines with a clamping force above 1000 kN,...
Composite materials refer to a type of solid material made by combining two or more different materials with distinct properties through a specific processing method. Composite materials can improve o...
During the injection molding process, the injection speed affects the flow state of the molten material in the mold cavity, which in turn influences the quality of the product.Low Injection Speed: Whe...
The main runner, also known as the direct gate, is the part where the molten material first enters the mold cavity and connects the nozzle with the mold cavity. It is suitable for molds with direct ga...
(1) Moisture SensitivityAlthough PBT has low hygroscopicity, even small amounts of moisture in the material can cause hydrolysis at high temperatures, making the molded parts brittle. Therefore, it is...
PBT (Polybutylene Terephthalate) has the following performance characteristics:(1) Appearance and DensityPBT is typically white or light yellow in color and has a glossy surface. Its density ranges fr...
1. Causes of Poor Surface GlossWhen evaluating the gloss of injection-molded products, the key factors are the degree of brightness on the surface and the uniformity of that brightness. Typically, two...
The performance requirements for plastic mold materials are not as high as those for cold-work and hot-work mold materials. However, plastic molds typically have complex structures, low surface roughn...
The failure modes of plastic molds include wear, corrosion, plastic deformation, and fracture.(1) WearWear in plastic molds mainly manifests as dimensional wear beyond tolerance, increased surface rou...
