Die casting heating bush types includes high-frequency induction heating bush, electric Heating bush, hot runner heating bush and so on.

In a die casting machine, a heating bush is a device uses to increase the temperature of the mold. It ensures that the molten metal reaches the appropriate temperature when it is injected into the mold.

Depending on different application requirements and material properties, heating bushes have following 5 main types:

1. Die casting heating bush types: High-frequency induction heating bush

This type of heating bush uses a high-frequency electromagnetic field to heat the mold.

For example, in some die-casting machines, a high-frequency induction coil places on the outside of the metal plunger. It uses to heat the plunger through electromagnetic induction, thereby indirectly heating the mold.

2. Die casting heating bush types: Electric Heating bush

These heating bushes usually heat by resistive heating elements such as heating rods or tubes. The heating elements can embed inside or outside the mold to evenly heat the mold surface.

3. Die casting heating bush types: Hot runner heating bush

In some hot chamber die casting machines, heating bushes may be integrated into the hot runner system to heat the melt channel. And the mold entrance area to ensure that the melt reaches the appropriate temperature before entering the mold.

4. Water Cooling/Heating bush

This type of heating bush regulates the mold temperature through a water circulation system.

In some cases, cooling water can also be used to cool the mold, thereby achieving precise temperature control.

5. Laser heating sleeves

Although less used at present, laser heating technology has also been studied for local heating of mold surfaces. This method can achieve fast and precise temperature control.

The design and selection of these heating jackets depends on the specific needs of the die casting machine, the type of metal used, and the thermal properties of the mold material. For example, for high-temperature metals (such as magnesium alloys), it may be necessary to use a heating jacket made of high-temperature resistant alloy steel or special materials to ensure the stability and life of the mold at high temperatures.

Haichen die casting machine

Haichen is one Chinese die casting machine manufacturer for more than 10years. We produce both high pressure cold chamber die casting machine and hot chamber die casting machine.They have durable and highly precise features.

Haichen also produce die casting machine auxiliary equipment. Such as conveyor, vacuum machine, mold temperature controller, industrial robot, sprayer and so on.

We supply cold chamber and hot chamber die casting machine spare parts. When you have any demand, feel free to contact us.