We are a professional unscrewing mold maker in China, and maker unscrewing mold by Hydro-cylinder solution and motor solution. Unscrewing mold is included internal thread part and external thread part. Hydro-cylinder solution is usually use for unscrewing mold release. If the part has internal thread, it must be use hydro-cylinder or motor solution. This…
How do solve Venting Problem
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,…
New opportunity of China mold maker?
What is new the opportunity of China mold maker? Let’s looking for the new opportunity of China mold maker in history, present and future. 1. History The history of mold industry developing just like China Economy developing. Yangtze River Delta economic circle and Pearl River Delta economic circle could represent the…
What is the cost of mold making?
Many customer is confusion for China Quotation. There are a hundred price in a hundred China mold makers . To clear it well, it is better to analysis the cost of mold making. What is the cost of mold making? As we all know, the main cost of mold is…
Urgent mold making
23 work days of T1 for mold with 35 sets exchange core inserts Mould Precision Co., Ltd. does a very good job for urgent mold making in China. We are not firemen, but we do a real good job as firemen. There are 4 pcs exchange cavity and 5 pcs…