Key Word: Taili Plastic Machinery; Taili Plastic Machinery-Capacity Improving Expert; Efficient; Stable; PC Material; Uneven Surface
Mr. Chen from Cixi is a manufacturer of the outer packaging of cosmetics, which is made of PC materials. Recently, there is a big problem with his new one out of two mold. The surface of the products is always produced uneven. The adjustment technician said that he adjusted according to the previous process, and there shouldn’t any problem. Mold producer said that he was expert in making this mold, and there shouldn’t any problem. Thus Mr. Chen got confused and helpless. Both of you guys said it was none of your business. Then what should I do with my order?

Mr. Chen's factory also has several Taili Injection Molding Machines. Thus, he called to ask how to deal with such a problem? I would like to share with you the solutions to this problem, which may worth a lot.
1. Material
Generally, in case of this problem, the first step is to check whether the materials are purchased from the original supplier, whether the supplier has been replaced, whether the drying time and temperature of PC material meet the requirements. It is important to check whether there is gas mixed in the material.
2. Mold
For the second step, it is recommended to check the mold. Mainly check the following aspects: whether the cooling water of the mold is connected; whether the mold temperature is caused too high due to several groups of cooling water are not connected; check whether the mold nozzle is blocked.
3. Process
For the third step, it is suggested to check the process problems. Properly reduce the material temperature and observe the product conditions. Increase the pressure holding pressure and pressure holding time. Slightly reduce the mold locking pressure and observe whether it is caused by improper exhaust.
4. Injection Molding Machine
The fourth step is to check the injection molding machine, generally checking the following aspects: check whether the injection nozzle is blocked; observe whether the injection cylinder has oil leakage; check whether the pressure can be lifted smoothly when maintaining the pressure.
After the four steps, Mr. Chen's problem was immediately cleared out and a solution was found. Actually, there was a small amount of iron chips blocking inside a cavity in the cooling water channel of the mold. After changing an injection molding machine, with the same process parameters, the surface problems were solved at once. After a close look into the previous injection molding machine, small amount of leakage was found near the injection cylinder. To produce the product of PC which requires high of the surface accuracy, it’s essential that the injection molding machine does not leak oil to ensure stable pressure.
Taili Plastic Machinery always keeps in mind that what a good injection molding machine factories should do is to help improve the capacity and boost the profits, rather than offer the similar product the customers need. This is also what Taili Plastic Machinery keeps doing.