Tag Archives: injection mould

Plastic molds have become the most widely used applications in various fields. Plastic molds have always met market demand with excellent practical applications. Do you know how to judge the quality of injection molds? It is mainly reflected in six aspects. Mold life: on the premise of ensuring product quality, the number of working cycles […]

There are three ways of heat transfer: radiation, convection and conduction. In the mold, the heat generated by the plastic brought into the mold is 95% absorbed by the mold through conduction, and about 5% is emitted into the air by radiation and convection. During the processing, the temperature change is the most important influencing […]

After the mold is processed, the surface of the mold will be left with CNC machined knife marks or electric discharge fire patterns. At this time, the mold needs to be polished. Polishing can improve the finish of the injection molded product. The mirror spark machine can also do this. One point, but general manufacturers […]

The color of the injection molded product is colorful and highly ornamental. The raw materials for processing are transparent and translucent polyethylene and polypropylene. The reason for the rich color is that it needs to be colored. What are the reasons for the uneven color of injection molding Poor diffusion of the colorant, which often […]

The fluidity of thermoplastics can usually be analyzed by a series of indicators, such as molecular weight, melt index, Archimedes spiral flow length, apparent viscosity and flow ratio (processing length/plastic part wall thickness). Small molecular weight, wide molecular weight distribution, poor molecular structure regularity, high melt index, long spiral flow length, low apparent viscosity, high […]

The main reasons and solutions for the uneven color of injection molded products are as follows: (1) The colorant is poorly diffused, which tends to cause a pattern near the gate. (2) The plastic or colorant has poor thermal stability. To stabilize the color tone of the part, it is necessary to strictly fix the […]

Mold protector, also known as mold monitoring, mold protector, CCD electronic eye, is mainly for the monitoring of the operation of various injection molding machines, real-time monitoring and control and detection of mold protection system. The function of the injection mold protector is as follows: 1 for the molded product retention test: When there is […]

According to the length of mould life, plastic moulds can be classified into 5 classes. Class 1 mould runs 1 million or more shots; Class 2 mould runs 0.5 – 1 million shots; Class 3 mould runs 0.3 – 0.5 million shots; Class 4 mould runs 0.1 – 0.3 million shots; Class 5 mould runs […]

Injection mould with single parting surface When the mould is opened, the core and cavity are separated, thereby taking out the plastic part, which is called a single parting surface mould, also named two-plate mould. It is the simplest and most basic form of injection mould. It can be designed as single cavity and multi-cavity […]