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

25 Jun

The material performance is very important in the process of injection mold processing

In the process of injection mold processing products, material plays a particularly important role in the appearance and performance of product molding, so choosing the right material is very important for the product. Let’s introduce PA6 material today.
Injection mold_ Material Science
PA6 material is widely used in structural parts and has good wear resistance. Because of its low melting point, the process temperature range is very wide. Its impact resistance, solubility resistance and hygroscopicity are better than PA66.
Under the injection […]

23 Jun

Assembly and quality inspection process of industrial plastic model in injection molding plant

How is the plastic model in the injection molding factory inspected and assembled? So what is the operation flow of it? Now it is the assembly of JasonMould, and the quality inspection supervisor will analyze it for you.
Injection molding plant – inspection workshop
1. assembly and quality inspection of injection molding plant
When all the accessories are finished, assembly is required. The assembly process has been designed in the disassembly programming stage. Just like our structure, we should think the assembly […]

15 Jun

Necessary for maintenance of injection molding machine

The core of injection molding machine maintenance work is fault judgment and fault handling. It involves a wide range of knowledge, a large degree of complexity, and has a certain depth (such as the level of comprehensive professional knowledge). We should have the basic knowledge of mechanical equipment maintenance, hydraulic maintenance and electrical maintenance. In fact, the maintenance work of injection molding machine is hard, but it is also a process of continuous learning and enterprising. As long as […]

27 May

Characteristics and injection molding process of transparent materials commonly used in plastics

Because of the light weight, good toughness and easy to form. The cost is low. In modern industry and daily products, more and more plastics are used instead of glass, especially in optical instruments and packaging industries, and it has developed rapidly. But because of the requirements of its transparency, wear-resistant parts to be high, impact toughness is better, back to the plastic composition, injection molding process, equipment. A lot of work should be done to ensure that the […]

24 May

ABS performance

The versatility of ABS comes from its three monomers, propylene, butadiene and styrene; B stands for butadiene, providing toughness and impact properties; S stands for styrene, providing rigidity and processability. ABS has excellent flowability and comprehensive properties.
Yellowish granular or bead resin. Non toxic, tasteless. Melting temperature 210 ~ 240 ℃, thermal decomposition temperature more than 250 ℃, density 1.03 ~ 1.07 / ^ 3. Soluble in aldehydes, ketones, esters and some chlorinated hydrocarbons. Insoluble in most alcohols and hydrocarbons. […]

18 May

Common problems and treatment after adding color masterbatch in injection molding

Under the sunlight, there are striped pigment bands in the products. This problem should be considered from two aspects: the physical and mechanical properties of plastics and the molding process of plastics
1. The temperature of the injection molding equipment is not well controlled, and the color masterbatch cannot be fully mixed with the resin after entering the mixing chamber.
2. Injection molding machine did not add a certain back pressure, screw mixing effect is not good.
3. Poor dispersion of Color […]

14 May

Injection molding process of PC material

PC has excellent performance, high transparency, good impact toughness, creep resistance, wide range of temperature. The process characteristics of PC are: the sensitivity of melt viscosity to shear rate is small, but it has great sensitivity to temperature, no obvious melting point, high viscosity of melt, easy hydrolysis of resin at high temperature and easy cracking of products. In view of these characteristics, we should pay special attention to the different treatment: to increase the fluidity of the melt, […]

10 May

Causes of color and luster defects of injection molded products

Under normal circumstances, the surface gloss of injection molded parts is mainly determined by the type of plastic, colorant and surface finish of the mold. But often because of some other reasons, the surface color and luster defects of products, surface dark and other defects. The causes and solutions are as follows:
(1) Poor finish of the mold, rust on the surface of the cavity, poor exhaust of the mold.
(2) The pouring system of the mould is defective, so it […]

08 May

Weld marks of forming defects

Weld mark
The fusion joint melt plastic in the cavity is confluent in multiple strands due to the penetration hole, the flow rate is not consistent, and the area where the filling material flow is interrupted. This kind of fusion of low temperature molten material can not fully fuse and produce linear fusion joint. In addition, the injection filling of the gate will also produce the fusion joint. This kind of weld mark only occurs at the fusion part of […]

05 May

Adjust and compare the injection molding process temperature, pressure, speed and position parameters

·Temperature
Temperature measurement and control is very important in injection molding. Although these measurements are relatively simple, most injection molding machines do not have enough temperature sampling points or lines.
On most injection molding machines, the temperature is sensed by thermocouples. A thermocouple is basically made up of two different wire tails. If one end is hotter than the other, a tiny telecommunication will be generated; The more heat, the stronger the signal.
·Temperature control
Thermocouples are also widely used as sensors in […]