The processing speed is very important in the injection molding process, because it is not only related to the processing cycle of the product, but also determines the processing cost of the product.
EDM machining speed refers to the mass and volume of the workpiece eroded in a certain pulse parameter and the same unit time, which can be expressed by mass machining speed and volume machining speed respectively.
On the die steel with the same surface roughness, the maximum machining speed relative to electric pulse is an important index to measure the technical performance of electric pulse machining and machine tool. In general, the manufacturer will provide the maximum processing current to ensure that the mold can achieve the highest processing speed in the best processing state. But in the actual processing process, the processing conditions and chip removal conditions will be different from the ideal state, and the size and shape of the workpiece will continue to change, so the processing speed is often lower than the maximum processing speed index of the machine tool.
In each injection molding process, the pulse discharge will leave a small pit on the surface of the workpiece. The size of the pit and the amount of etched material are proportional to the pulse energy. That is to say, the larger the pulse energy is, the more heat is transferred to the workpiece, and the more material is etched. Theoretically speaking, the speed of EDM is directly proportional to the energy and frequency of a single pulse, but in practice, the function of a single pulse is not reflected alone, but the result of multiple pulses. Because pulse power supply is continuous, the process of transferring energy to machining gap through pulse state is very complex, so the machining speed is a multivariate function related to pulse discharge time, pulse interval, pulse discharge current, pulse waveform, performance of machining object, electrode material and chip removal condition.
Now we all know the importance of processing speed in the injection molding process. Xiaobian also brings you other contents. Let's continue to see!
Customers often ask Wanda Xiaobian whether it is necessary to spray paint on the surface of plastic products. In fact, it depends on the specific use of customers. Now let's talk about the advantages of surface painting of plastic products.
1. Spraying paint on the surface of plastic products can ensure the brightness of the products, because it is difficult for plastic products to reflect light and look dark. If the surface of plastic products has texture, it will look even darker. At this time, customers will spray a layer of paint on the surface of plastic products to pursue beautiful surface and ensure the brightness of products.
2. Painting on the surface of plastic products can reduce the scrap rate of plastic products. The scrap rate of white plastic products has always been a headache in the injection molding industry. If the surface is sprayed, the defects of the products can be covered up to a certain extent.
Therefore, it is very useful to spray paint on the surface of required plastic products, but we need to know that spray paint will increase the cost of injection molding.