Injection molds are often burned for some reason during production.Depending on the cause of the burn, such as machine, mold, or molding conditions, there are different solution. 1. Mechanical reasons: overheating of the cylinder due to abnormal conditions; or stagnation of the resin due to the nozzle and screw thread.At this time, the nozzle, screw and barrel should be cleaned. 2. The cause of th...

The parting surface is the joint surface of the mold for taking out the product in the process of injection molding. An important factor that decides the structural form of the mold, it is related to the overall structure of the mold, the design of the pouring system, the demoulding of the plastic parts and the manufacturing process of the mold. Selection principle of parting surface: A. The maxim...

Surface treatment is widely used in many objects, from traditional industry to high-tech industry, from metal surface to plastic surface. All processes, which are made to change the material surface's physical, mechanical and chemical properties, is called Surface Treatment.  A mold surface treatment is processed to improve surface finish of injection molded parts. It makes materials more cor...

We often see patterns and numbers on plastic parts, and these numbers varies for each part. How to engrave these numbers and patterns on these molds? there are mainly three common methods. 1) The first one is directly engraved on the mold by an engraving machine. This is usually used when the font or pattern is large. Usually this type of font usually has a knife mark on the surface and needs to b...

A customer asked me if the surface of the plastic product needs to be painted, this depends on the customer's requirements. When the surface of the plastic product is painted, the brightness of the product can be guaranteed. Because the plastic product itself is very difficult to reflect.  Therefore, the plastic parts look darker, and if the skin texture on the surface of the plastic parts is...

Texture is a common process for mold surface treatment, which directly affects the appearance and surface strength of the product surface. Mold texture, also known as mold etching, mold graning, is widely used due to its low process cost, rich effect and fast speed.  It's use chemical liquid (such as sulfuric acid, nitric acid, etc.) to chemically react with the mold steel, and the reaction p...

Plastic product surface treatment process types: silk screen, pad printing, painting, electroplating, hot stamping, laser carving, water transfer printing, etc. The purpose for painting are improving appearance and functions, such as friction resistance, corrosion resistance, radiation resistance, acid and alkali resistance, fire resistance, increased strength, etc. The main painting processing ar...