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

16 Dec

Cracking of common problems in injection molding

Cracking is a common defect of plastic products, which is mainly caused by stress and deformation. It mainly includes residual stress, external stress and stress deformation caused by external environment.
(I) cracking caused by residual stress
The residual stress is mainly caused by the following three conditions, i.e. overfilling, demoulding and pushing out and metal inlay. As the cracks produced in the case of excess filling, the solution can be mainly in the following aspects:
(1) since the pressure loss of the […]

13 Dec

What information should be provided to the manufacturer for the injection molding process？

Many customers need injection molding after a product is newly designed. When a new product needs tool making, what information should the customer provide to the manufacturer?

JasonMould shares you a general idea of what is required for tool making and injection molding.

3D CAD file of product.
Bill of material ( including materials required for products and surface finishing requirements etc.)
Batch quantity.

With the above information then we can offer you an accurate price.
About JasonMould Industrial Company Limited

Jasonmould is a China mold maker of plastic […]

11 Dec

Common problems in injection molding insufficient filling

The main reasons for insufficient filling are as follows:
1) insufficient resin capacity.
2) insufficient pressure in the cavity.
3) resin fluidity is insufficient.
4) poor exhaust effect.
As an improvement measure, we can start from the following aspects:
1) lengthen the injection time to prevent the resin countercurrent before the gate solidification due to the short molding cycle, which makes it difficult to fill the mold cavity.
2) improve the injection speed.
3) increase the mold temperature.
4) increase the resin temperature.
5) increase injection pressure.
6) enlarge gate […]

09 Dec

What Are The Two Part Of a Plastic Injection Mold?

Injection molding is a processing method used in mass production of complex parts. Specific principle refers to: heat melting plastic raw materials by injection molding machine screw into the mold cavity, after cooling and curing, plastic forming products.

The plastic mold consists of two parts: moving mold and fixed mold. The moving mold is installed on the moving template of the injection molding machine, and the fixed mold is installed on the fixed template of the injection molding machine. During […]

06 Dec

How to avoid deformation in mould manufacturing

In the process of mold manufacturing, deformation often occurs, so how to avoid the deformation in mold manufacturing?
(1) the thickness of the product shall be as uniform as possible.
(2) all parts of the cooling system are designed to make the cavity temperature uniform.
(3) the pouring system can make the material flow symmetrical, avoid warping caused by contraction in different flow directions, and try to eliminate the density difference, pressure difference and temperature difference in the cavity.
(4) the thickness of […]

04 Dec

Why Do Injection Moulds Need To Be Tested?

Defects in most injection molding products are caused during the plasticizing and injection phases of the injection molding parts, but are sometimes related to design irrationality, including the type of injection port, the number of mold cavities, location and size, the design of the cold and hot runner system, and the structure of the product itself. Therefore, in order to avoid product defects caused by mold design, we need to analyze the injection mold during production.

After the test results […]

02 Dec

What should we do to control the quality of plastic mould?

Now the plastic mold industry has higher and higher requirements for machine equipment and testing instruments! The price of CMM and other testing equipment is also increasing, which shows that the improvement of quality is the future development direction of the whole plastic mold industry. After more than 10 years of continuous exploration and learning, Shenzhen Mingyang Yutong technology has summed up that to ensure the quality of plastic mold products, it is also necessary to strictly control each […]

28 Nov

Design Of Ultrasonic Line

Ultrasonic welding in the assembly of plastic parts is commonly used to a process. ABS, PC+ABS, PP, PC, etc. these materials are suitable for ultrasonic welding. Generally used for ultrasonic two parts are required to be the same material. Ultrasonic bonding will be better. If nylon or POM is used to ultrasonic with ABS, this is not feasible.

Ultrasonic welding has a lot of advantages, the most critical is to meet the waterproof requirements of the product, the second ultrasonic […]

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 […]

Tag - custom plastic injection molding services