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

29 Sep

Effect of Five Systems of Injection Molding Machine

Injection system

Injection system is one of the main components of injection molding machine, generally there are three main methods: plunger, screw, screw pre-plastic plunger injection. Now widely used is screw type. The effect is that in a cycle of the injection machine, a certain amount of plastic can be heated and plasticized within a specified time, and the molten plastic can be injected into the mold cavity through a screw under a certain pressure and speed. After the injection, […]

19 Sep

Causes and Solutions of Deformation of Injection Molded Parts

The possible reasons for the deformation of injection molded parts are:

bending is due to excessive internal stress in injection molded parts.

mold filling speed is slow.

plastic material in cavity is not enough.

plastic temperature is too low or inconsistent.

injection molded parts are too hot at the time of ejection.

the temperature of cooling is insufficient or the temperature of the moving and fixed die is inconsistent.

the structure of injection molded parts is unreasonable (such as stiffeners are concentrated on one side, but […]

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10 Sep

Detailed Explanation of Five Parameters for Injection Molding

Injection molding is a kind of production behavior that plastic particles are molded into predetermined shapes by heating and melting. In this process, many factors of production have an important impact on the quality and production efficiency of the final plastic products.

Although different materials and different products have a variety of injection molding techniques, but we can summarize the process of injection molding parameters in the final product of the impact of various factors, so as to adjust the […]

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04 Sep

How to Distinguish Mold Grades? Take A Look at The Five Major American Mold Standards

The price of the export mold will be more expensive, but it is expensive because the standard is different. The American Plastics Industry Association (SPIAN-102-78) divides the molds into five categories. Each of these five types of molds has its own requirements, and this classification of molds can only be applied to molds with 400 tons or less of injection molding machines.
mold making
101 type

The cycle can be up to 1 million times for high production. The best mold material is […]

03 Sep

What Are The Main Reasons Affect Mold Failure?

Failure often occurs in the use of molds, from the actual point of view, we focus on several failure modes. There are five main types:

Failure of plastic deformation

The main reason is that the strength level of the mold material is not high; or the heat treatment process is not correct, not to achieve the best strength and toughness of steel; improper use of the die causes local overload; for hot-working mold softening at high temperature will also lead to mold thermoplastic deformation […]

23 Aug

What Needs to be Determined before Plastic Mold Design?

Before designing the plastic mold, we must find out the required plastic parts and production conditions. For this reason, we need to do the following work.

(1) Acceptance of mission documents

The task document for molded plastic parts is usually presented by the designer of the product.

the formal drawing of the specimen is signed, and the grade and transparency of the plastic are specified.
Specifications or technical requirements for plastic parts.

3.Production output.

samples of plastic products.

Usually the mold design task statement is put […]

21 Aug

Development trend of Rapid Tooling Technology

With the development of rapid prototyping and rapid tooling manufacturing technology, in the near future, high precision rapid tooling will have great development. It is mainly manifested in the following aspects:

First, improve the performance of rapid tooling and improve the accuracy of rapid tooling. Good mold performance and high die accuracy are the key issues in the application and promotion of rapid tooling.

Improving the performance of the rapid tooling: In order to obtain high-quality product parts and better mold […]

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16 Aug

Aspects of Mold Technology Level

The level of mold technology ultimately manifests in the mold manufacturing cycle, mold life, mold precision and stiffness, mold manufacturing costs, mold standardization and other aspects. These are also the basis for evaluating the economic and technical indicators of die and mold.

Mold manufacturing cycle

The mold manufacturing cycle reflects the production technology level and organization management level of the mold and mould enterprise. In manufacturing mold, we should try to shorten the mold manufacturing cycle. At present, in order to shorten […]

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15 Aug

Guangdong to Become Plastics ‘Hub’ of China!

Just as we thought Guangdong could not get any bigger and better in terms of manufacturing, Injection Moulding Asia has reported that the province is to hold the Chinaplas exhibition in 2017. Not content with being China’s base for manufacturingelectrical appliances, cars and packaging, Guangdong will also look to specialise in the biomedicine, LED and environmental technology sectors with investment worth over 100 Billion RMB flowing into the region.

This huge investment will hopefully attract other sectors to Guangdong so as to […]

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08 Aug

Relationship between The Material of Injection Mold and The Mold Life

The durability of the injection mold is greatly related to the material used, so it is necessary to pay attention to the selection of the mold material. Generally speaking, the mold material should have the following properties:

(1) High wear resistance
In order to increase the rigidity and mechanical properties of the plastic parts, the glass fiber and inorganic filler are widely used in the plastic formulation. After adding these additives, they enter the mold cavity with the molten material at […]

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