The temperature of the injection molding mold has a great influence on the flow of the plastic melt, curing and shaping, production efficiency, and the shape and dimensional accuracy of the plastic parts...
Read More
Polyphenylene sulfide, known as polyphenylene sulfide, the English name polyphenylene sulfide (PPS), is a thermoplastic engineering plastic with a benzene sulfide group on the main chain of the molecule...
Read More
In practice, the mold temperature is set from the lowest appropriate mold temperature for the material used and then adjusted upward according to the quality condition...
Read More
First of all, one of the most basic questions, what is the cost of the mold, some friends can answer me without thinking: mold cost is the mold material cost + processing cost + tax...
Read More
In the molding process of transforming plastic particles into plastic products, plastic is often subjected to high temperature and pressure and flows under a high shear rate. Different molding conditions...
Read More
As we know, the function of the main flow path, manifold, and gate are to transport the plastic melt from the injection molding machine nozzle to each cavity. Pouring system...
Read More
Mold temperature is the most important variable in injection molding ---- No matter what kind of plastic is being injected, it must be ensured that a basic wetting of the mold...
Read More
Several aspects that need attention to reduce the degree of wear of injection molding machine screw, Injection molding machine screw for a long time in high temperature, high pressure...
Read More
The study of injection molding machine performance or condition gradually decreases with the time of use. Many failures are preceded by several precursors, which are called potential...
Read More
Mold opening control.After the molten plastic is injected into the mold cavity and cooled, the mold is opened and the product is removed. The mold opening process is also divided into three...
Read More
1. briefly describe the operating status of the check valve during plasticization, injection, and pressure-holding, Plasticizing: open, Injection: closed, Holding pressure: closed...
Read More
Precision injection molding is based on the premise that the mold can be made to the desired size. However, even if the mold size is certain, the actual size of the product varies depending...
Read More
1. On the machine,Due to uncontrolled heating control system, the barrel is overheated, resulting in decomposition and blackening.Due to the defect of screw or barrel, the molten material...
Read More
Transparent plastic, because of the high light transmission rate, must require strict surface quality requirements for plastic products, which cannot have any mottling, porosity, whitening...
Read More
1. Injection pressure,This is the pressure that causes the flow of plastic and can be measured with a sensor on the injection nozzle or hydraulic line. It has no fixed value, and the more...
Read More
Fault,Cause,Treatment,I. Motor does not run,1. electrical power supply fuse is blown.2. poor start button connector.3. tripped overload relay.4. Main circuit failure, bad disconnector.Replace the fuse...
Read More
Underfill is a phenomenon that occurs when the injection material does not fill the mold cavity, resulting in an incomplete part, usually in thin-walled areas or areas away from the gate...
Read More
1. The mold temperature is too low to solve the shrinkage problem,The shrinkage problem of hard plastic parts (surface shrinkage concave and internal shrinkage hole) is caused by the defect...
Read More
1. The mold temperature is too low to solve the shrinkage problem,The shrinkage problem of hard plastic parts (surface shrinkage concave and internal shrinkage hole) is caused by the defect...
Read More
I. Start to close the mold, 1. Start clamping pressure: the initial setting value reference is 25, when this pressure is too small and leads to slow speed, try to increase the speed, this pressure...
Read More
Reasons for gas in the manufacture of products,1. The material in the feeding system has gas or there is air in the cavity, and the gas in the runner and cavity is not discharged in time during the molding process...
Read More
It is the hydraulic oil as the working medium, through the power element (oil pump) the mechanical energy of the prime mover into hydraulic oil pressure energy, and then through...
Read More
As the most important molding equipment for injection molding product processing, the quality of injection mold is directly related to the quality of products. Moreover, since...
Read More
Visible defects on the surface of injection molded products include dark spots, gloss differences or fogged areas, and surface wrinkling or what is called orange peel. Usually...
Read More
The depressions on the surface of molded parts are called shrinkage holes, which are caused by the shrinkage of plastic during molding, so most of them are difficult to...
Read More
