Injection molding process

Injection molding process

 

Injection temperature is an important factor affecting the injection pressure. Injection molding machine cylinder 5 to 6 heating section, each material has its appropriate processing temperature (processing temperature can refer to the detailed data provided by the material supplier). Injection temperature must be controlled within a certain range. Temperature is too low, poor melt plastics, affecting the quality of molded parts, increasing the difficulty of the process; the temperature is too high, the raw material is easy to break down. In the actual china plastic injection molding , the ake plastic molds temperature is often higher than the cylinder temperature, the higher the value of the injection rate and properties of the material concerned, up to 30 ℃. This is because when the melt is subjected to shear Gate passage and generate heat caused. In making mold flow analysis can be used to compensate for this difference in two ways, one is trying to measure the melt temperature when air injection, and the other one is modeling the nozzle is also included.