What is the cooling system of the mold
The simple thing is that the temperature of the mold is high enough to keep the cooling system constant
It is in the core that makes the channel for cooling water flow. The effect is to ensure that the mould has a reasonable temperature balance in the process of production.
Exactly, the thermostat system of the mold should be called. Cooling, it's just part of this constant temperature, and the other part is insulation. In the process of injection molding, according to the material, the requirements for the mould temperature are different. For example, PP material, the temperature requirement of the mold is not high, the circulating water cooling is ok, it is ok to keep room temperature. But some materials, such as PC, require that the temperature of the die need to be kept above 80 degrees, which requires the temperature of the temperature machine to warm up the water. There are some special materials such as PPS (PPS) to demand a higher mold temperature above 150 degrees, also need the oil temperature machine or electric heating rod to heat the mold. Thermostatic system generally is in the mold cavities internal hole, forming one or more than one closed loop pipes, hoses, a into a mission of water flow in the pipeline, to keep the temperature of the mold temperature is constant. This is the die water. The other is the heating rod, which is inserted into the molds of the molds to keep the temperature above 100 degrees. It should be said that most of the moulds should be made by water, and no water will affect the life of the mold, mainly by the effect of injection molding process.
According to the product shape, people in different templates design with cold water or hot water in and out of the loop, especially near the mold core, cavity and port more requires constant cooling. In a working cycle, the molds have a large cooling area and need to be cooled for a long time, about 80% of a cycle. The design of cooling system should consider the following factors: mould steel variety, length of cooling channel, melt temperature of injection materials and solidification temperature. It should also consider temperature control device, cooling medium flow condition and pressure. The cooling system is designed according to the heat that the mould absorbs heat and the cooling water pipes. Studies have shown that a good cooling design reduces cooling time by about 20 percent.
