the purpose is to increase the resistance to the material flow at the near-by cavities
the purpose is to increase the resistance to the material flow at the near-by cavities, for practical reason, a smaller gate size is used, […]
please don’t forget cold-slug in molding
please don’t forget cold-slug, it well usually locates at the end of the spure. That is, at the end of the runner and on the core-retainer plate, on directly opposite side of the spure.
what is the primary principle in selecting a feeding system in mold design?
so when we select a feeding system, what is the primary principle? I think it is to maintain the temperature and pressure as it flows out of the nozzle and fill out the cavity easily. Commonly, it prefers a “ short and thick” spure, runner, and gate. Other considerations are also given to the requirement [...]
in practice, how to make a decision on gate and runner design is very important
in that case, in practice, how to make a decision on gate and runner design is very important. Because every mold has it’s making schedule. […]
the design of runner and gate has a great impact on the part’s molding and quality
Although the design of runner and gate has a great impact on the part’s molding, and quality. […]
through feeding system, the melt plastic fills into mold cavity
yes! You are right, while the melt plastic passes the spure, runners and gate, it fills out at elevated temperature and reduced pressure, due to friction. The melt plastic material gradually cools off in the cavity by heat transfer.
discuss feeding system in mold design
today we should discuss something about feeding system, because in mold design, […]