Steven

Steven

venting

plastic mold venting  Before injection molding, there is a large amount of air in the flow path and the cavity. When the melt enters the cavity quickly, it is necessary to discharge the air quickly. In addition, when the melt…

what is plastic mold?

injection molding

Table of Contents The structure of an injection mold Classification of injection mold: Difference: The main plastic mold system 1.Runner Main Runner Sub-runner Cold Slug 2.Temperature Control for cooling some facts: mold width vs diameter of cooling channel 3.Venting plastic…

undercut mould

To understand the various designs of undercut mould, we must first understand the definition of what a moulded undercut really is. In its most simplistic form, an undercut can be described as any feature on the moulding which resists the…

How to choose mould steel

How to choose mould steel The choice of mould steel is of great importance if the mould is to function effectively. When plastic is molded, due to molecular stretching and shearing, residual stress is left in the product, which causes…

runnerless mold

Runnerless Mold A runnerless or hot-runner mould system could be considered as an extension of the moulding machine injection unit. In this case,the polymer is kept molten right up to the cavity gate by means of additional heating elements controlled…