Tag - china custom injection molding

The reason bubble caused in plastic product of injection molding

How should plastic product appear bubble to do? Our engineer’s answer is that the reason may in the equipment, plastic mold, and may also in the injection process, the following is the reason analysis of the process, hope to help you solve the problem.
 

The back pressure of screw pre-molding is too low and the rotation speed is too high, which causes the screw to return too fast, and the air is easily pushed to the front end of the […]

Analysis And Solution Of Cracking In Injection Molding

Cracks, including filament cracks, microcrack, whitening, cracking on the surface of parts, as well as cracks and fracture time due to component adhesion, flow path adhesion or traumatic damage. The main reasons are as follows:
 

Processing:

 
(1) Excessive processing pressure, too fast, the more filling materials, injection, holding pressure for too long, will cause excessive internal stress and cracking.
 
(2) Adjust the speed and pressure of mold opening to prevent the quick and strong drawing parts from causing demoulding cracking.
 
(3) Adjust the […]

Classification of injection mold

All kinds of tools used in our daily production and life, from the body shell to the head screw, button and the shell of all kinds of household appliances, have an inseparable relationship with the mold. The shape of the mold determines the shape of these products. The processing accuracy and quality of the mould also affect the quality of the product. According to the different materials of the product, the mould can be divided into injection mould, forging […]

What will determine the price of injection tooling ?

When customers ask to quote a injection tooling cost for their products, they often  do not understand the price is how to evaluate, and want to know why the tooling cost for big product is higher than small one. Now let’s see what will determine the price of injection tooling ?
 
JasonMould based on years of quotation experience, sharing the injection mould price is determined by the following factors:
 

Product structure
Product size
Product surface finish

 
Product structure is one of the factors affected […]

Quality management can extend the service life of mould

In the production process, the mold will be subject to normal wear. To be sure, quality management control in daily production will play an important role in mold quality assurance, mainly including the following aspects:
1. Effective data management
Including production data, process data and drawing documents: effective management of production data, process data and 2D / 3D drawing documents can ensure complete document library and complete drawing version, so as to realize effective sharing and effective query.
Drawing. In the engineering […]

Bicolor Injection Mold Maintenance

Check loose air holes for rust or moisture

 
If you find rust or moisture near a hot runner vent, it means internal condensation or a possible water pipe rupture. Moisture can cause a fatal short circuit to the heater. If the machine is shut down at night or on weekends instead of running all year round, the chance of such condensation on an injection mold increases.
 
You should have measured the resistance of the heater when you first started using it, […]

Insert Molding VS Coating Molding

Injection molding of inserts is similar to other molding methods, but there are some differences in each process. Injection molding involves injecting one or more molten plastics into a mold to form a single finished product.
 
Coating molding
What is the coating molding? Simply put, the coating process can be plastic, flexible or flexible.
There are physical and chemical methods to realize the coating moulding (including overmolding). The former, for example, relies on snap design, surface tapping threads, and then coated with […]