China Plastic Injection Molding | China Plastic Injection Molding Companies With Tooling And Injection Moulding Die Makers

25 Nov

Black spots of common problems in injection molding

What is a black spot? Black spot refers to the black spots or stripes on the molded products.
Causes of black spots on injection molded parts:
1. Resin decomposition
As plastic is a chemical, it will decompose gradually when it is heated above the melting point. The higher the temperature, the longer the time and the faster the decomposition. In addition, there are some areas in the barrel that are easy to retain resin, such as check check valve and thread. The […]

22 Nov

SPI Mold Standard–Wall Thickness Design

Product structure is undoubtedly the key factor to determine the price of the mold, the realization of a product function has a variety of different design, different design determines the mold manufacturing method is not the same, determine the price of the mold will be different, some structure only need us to pay attention to some design principles, may be able to save a lot of cost.

If we ignore the wall thickness of the product, the appearance problems will […]

20 Nov

Characteristics and injection process of PC + ABS injection material

What is PC + ABS material?
PC plastic is a new type of thermoplastic with 90% transparency, so it is called transparent metal. It is very hard, with high impact strength and high dimensional stability, as well as a wide range of application temperature, good electrical insulation, heat resistance and non-toxic properties ABS is a tough and rigid thermoplastic. It is a blend or terpolymer of acrylonitrile, butadiene and styrene. Styrene endows ABS with excellent moldability, gloss and rigidity; acrylonitrile […]

18 Nov

Key Points Of Boss Design

Screw post is also called boss, which is a feature of most products. What key points should we pay attention to when designing the structure? Let’s have a look:

The wall thickness of the boss, at the time of structure design, we need to consider the strength of the boss, so as far as possible the post do thick wall thickness, but this will lead to positive forming parts shrink, we can design according to the main body of the […]

15 Nov

How to choose injection mold steel?

How to choose the injection mold steel reasonably is a complex project, and it is also the key link of the injection mold manufacturing. This is an important work related to the service life of the mold and the cost of the injection mold. Generally, the materials used to make plastic injection mold need to have certain hardness and wear resistance first. Secondly, it should have strength and toughness. Before choosing the injection mold steel, we need to know […]

11 Nov

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 […]

08 Nov

5 benefits of custom injection molding

If you need to mass produce the same plastic product, injection molding is your first choice. This low-cost process can produce high-quality parts in large quantities.
But do you know the material and process of injection molding? JasonMould takes you to the next 5 options for custom injection molding benefits.
1. Product customization: change to the color or type of material you want to use. Other additives can also be added to enhance the finished part and even other characteristics, such […]

06 Nov

How to tell the difference between PP and POM material?

In recent years, more and more kinds of plastic products come into our life, at the same time the development of injection molding technology get injection molding products replace other material life and industrial supplies, now almost all things are linked with injection molding parts. So how to distinguish injection plastic material is also a need to pay attention to in daily life. Here Jasonmould briefly introduces you to the difference between PP and POM materials.

The method is as […]

01 Nov

Basic requirements for design and manufacture of automobile mould

In modern society, automobile has become an important means of transportation for people to travel. Its quality not only affects people’s travel quality, but also directly affects people’s life and property safety. Generally, the service life of automobile mould is 600000 to 800000 times. In the process of automobile mold design and production, we should not only meet the technological requirements of automobile body parts, but also pay attention to the application of mechanical equipment, transportation mode, mold installation […]

25 Oct

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 […]

Tag - china plastic injection molding