Injection molding machines can mold plastic products with complex shapes, precise dimensions or dense textures with metal inserts in one go. They are widely used in various fields such as national defense, mechanical and electrical, automobile, transportation, building materials, packaging, agriculture, culture, education, health and people's daily life. Injection molding process has good adaptability to processing of various plastics, has high production capacity, and is easy to automate. Today, with rapid development of plastics industry, injection molding machines occupy an important position in both quantity and variety, making them one of the fastest growing and most produced types of plastic machinery.
Tag: injection molding machines
POM (also known as Saigang, Trane). It is obtained by polymerization of formaldehyde as raw materials. POM-H (polyoxymethylene homopolymer) and POM-K (polyoxymethylene copolymer) are thermoplastic engineering plastics with high density and high crystallinity. Has good physical, mechanical and chemical properties, especially excellent friction resistance. POM is a crystalline plastic with obvious melting point. Once it reaches melting point, melt viscosity drops rapidly. When temperature exceeds a certain limit or melt is heated for too long, it will cause decomposition. Copper is a catalyst for POM degradation, copper or copper materials should be avoided in parts in contact with POM melt.
What do you do after you have established a stable injection molding process? You might document parameter settings on machine on a process parameter setting sheet, right? You might even make mistake of validating process based on these set points. But these numbers are not always directly related to actual output.
Materials with medium comprehensive mechanical properties-general engineering plastics refer to those engineering plastics used in engineering to make various product shells and shells for non-load bearing purposes. It is mainly plastic and plexiglass with styrene as main monomer. It is mainly formed by modification of PS. After synthesis of PS in engineering, it is found that PS has two major characteristics, one is transparent; the other is fragile, surface is easily scratched. In order to solve its shortcomings and retain its transparency, it has been modified in two ways. On the one hand, it produced a transparent AS MBS; on the other hand, it produced an opaque HIPS ABS AAS ACS
Both imported and domestic injection molding machines have following characteristics: Injection molding machine has large investment in fixed assets, large production scale, large consumption of raw materials, high labor productivity, and large output value. It is a form of production organization with high labor efficiency.
1 Is oil seal of mold opening cylinder damaged? 2 Is mechanical part of clamping mechanism stuck? 3 Check mold opening valve; see if spool is not in place? 4 Are speed, pressure, and position parameters appropriate? 5 Is mold opening position reached? Look at screen to check electronic ruler or mold opening stop travel switch. 6 If this kind of problem often occurs, first check oil circuit part, but mechanical part should pay more attention to inspection to see if there is any wear or unevenness of connecting rod.
Gud Mould 