How do solve Venting Problem of molding defection Venting Problem usually make plastic parts burned black. Add core or cavity pins is one good solution for solve Venting Problem. and even most difficult to adjust by plastic injection molding parameters. Mold design and making should make venting design even though…
How to reduce sink marks
How to reduce sink marks of molding defection Sink marks is popular molded issue, it happens in the region of thick features such as ribs or bosses shrinks more than the material in the adjacent wall. How to reduce sink marks? We should consider the Factors effecting sink mark depth first:…
What is insert molding
Insert molding- Put insert inside before Molding What is insert molding? Insert molding is putting insert when it is molding, the insert is a metal object or ceramic any hard part, which is must be able to withstand the high-temperature and pressure of the injection molding process.such as a pin,…
What is plastic injection molding
Plastic injection molding is a process to manufacturing products, put melting plastic into mold by injection machine by high temperature and high pressure. Most plastic products in daily life are made by injection molding, such as toothbrush, bucket and washbasin etc. Pls know that you must be make plastic injection mold first, if…
What is over molding
Over molding- One plastic molding over other plastic Over molding is the precision plastic injection molding process, which molding one material over a other material. The first molding plastic is hard, and the second is soft. It is two layers! For molding material, proper material selection is critical – the two…
