The injection molding process is usually comprised of 6 steps:
The clamping: An injection machine contains 3 parts – the injection mold, the clamp and the injection unit, among which, the clamping unit keeps the mold at a certain pressure, so as to ensure the consistency of the outputs.
A mold is usually made up of 2 parts.
The injection unit: It refers to the part where the plastic pellets are fed into the hopper located at the top end of the […]
Precision injection moulding requires high technology and high quality, and requires professional precision moulding equipment to injection moulding. What are the characteristics of precision injection moulding?
(1) The dimension accuracy of the parts is high and the tolerance range is small. That is to say, the dimension deviation of precise plastic parts with high precision dimension limit will be less than 0.03mm, and some even small to micron level. The detection tool depends on the projector.
(2) High repetition accuracy of […]
When a new product is designed well, many customers are going to find a plastic injection mold manufacturer for a trial order. At this point, selecting a proper plastic mold manufacturer is very important. As a professional manufacturer who specialize in mold making , here we have some advises for your reference.
（1）Better choice for cooperation in mold manufacturer
Currently, there is a diversity of mold manufacturers available in the China market, including foreign-funded companies, Taiwan invested firms, Hong Kong enterprises, […]
Automotive plastic parts are light in weight, and have many colors, beautiful, good weight loss effect, reduce the weight of the body itself. It can be recycled and recycled many times. In automobile recycling, most of the metal products do not have recycling value, because they are too old and rusty. Plastic products, because of its regeneration characteristics, can basically be melted after secondary processing, and will not produce any harm.
Advantages of automotive plastic parts:
Plastic products have the advantages […]
In the process of injection moulding, the moisture content of material should be within a relatively low range to ensure the normal injection moulding and the normal physical properties of product materials. The water content of injection material is too high. First, there will be bad appearance of silver wire on the surface. Secondly, water vapor in the material will cause bubble holes in the product, which will affect the strength. Thirdly, if the moisture content is high, the […]
The process of injection molding mainly includes four stages: filling, holding, cooling and demolding. These four stages directly determine the quality of the product. It is a complete continuous process. Injection parameters
Injection parameters
Injection pressure
Injection pressure is provided by the hydraulic system of the injection system. There are many factors affecting the filling pressure of melt, which can be summarized into three categories: (1) material factors, such as the type and viscosity of plastics; (2) structural factors, such as the […]
Common automotive plastic parts are: dashboard body skeleton, battery bracket, front-end module, control box, seat support frame, spare placenta, fender, chassis cover, noise partition, rear door frame, etc. Most of the panels of automobile plastic parts are made of engineering plastic ABS or abs/pc.
Generally, doors, dashboards, bumpers and gearboards are all made of PP. Engine hood is made of lead with pp. PC / ABS is usually purchased from material manufacturers. Plastic parts are light in weight, and have […]
Since mankind entered the industrial society, the production of all kinds of products has got rid of manual work. Automated machine production has been popularized in all walks of life, and the production of plastic products is no exception. Nowadays, plastic products are processed by injection molds with injection molding machines, such as those common in our daily life. All kinds of household appliances and digital products are processed by injection molding. How is a complete plastic product poruduced in the […]
From three points, we can see the quality of injection parts.
First, look at the appearance
Seewhetherthe injection parts are complete and whether they are deformed or not;
Whether the injection parts are uniform in color, whether there is obvious color difference, and whether the color is bright and translucent.
Second, touch the product
Touch the the surface of the injection part to see whether smooth, and whether there are burrs around the handle;
Whether theinjection parts have been naturally aged, the aging is reflected in […]
1) plastic materials
The complexity of plastic material properties determines the complexity of injection moulding process. The performance of plastic materials varies greatly with varieties, brands, manufacturers and even batches. Different performance parameters may lead to completely different forming results.
2) injection temperature
The melt flows into the cooling cavity and loses heat due to heat conduction. At the same time, the heat generated by shearing may be more or less than the heat dissipated by heat conduction, mainly depending on the […]
