According to different temperature requirements, die-casting mold temperature machines can be selected from different oil type mold temperature machines. There are basically two types of mold temperature machines. One is a maximum temperature of 200 ℃, and the other is a maximum temperature of 300 ℃. Depending on the preheating temperature required for different die casting molds, choose the die casting mold temperature machine. The following is the mold preheating temperature required for various alloy die casting, for reference only.
Type of mold
Mold preheating temperature
Zinc alloy mold
140℃~180℃
Aluminum alloy mold
150℃~200℃
Magnesium alloy mold
170℃~210℃
Copper alloy mold
250℃~300℃
According to the above table, selecting a 300 ℃ high-temperature oil temperature machine for the die casting industry can basically meet the requirements.
Advantages and efficiency of mold temperature machines
The use of mold warmers often brings the following advantages:
Extend mold life
- Extended mold life due to uniform heat distribution
- Elimination of stress cracks, mold preheating with flame, etc. often cause local overheating or gap water cooling, resulting in thermal shock and local internal stress.
- Preheat the mold evenly and smoothly.
- The core will not overheat
Reduce costs
- Reduced mold repairs
- Reduced dosage of release agent
- Stable casting quality and reduced inspection costs
- Reduced warm-up time
- The mold temperature does not overheat, the liquid metal does not stick to the mold, and the temperature is uniform. The mold slider has little wear
- Use heat transfer oil to ensure that the cooling channel does not rust or scale
Increase productivity
- Preheat the mold quickly and purposefully before production begins
- At the beginning of production, the mold temperature is constant, and waste products are reduced (preheating and injection are not required)
- Automatic mold temperature control, independent of the production process, resulting in stable casting quality
- Production is interrupted and restarted, resulting in a reduction in scrap, as the mold automatically maintains thermal stability
Improve die casting technology
- Mold temperature control does not rely on operators
- Can produce thin-walled castings
- Improve production environment and reduce heat emission
- Fully automatic operation, automatic mold temperature control
Improve quality
- Improved casting quality, improved dimensional accuracy, stable quality, smooth surface, and reduced shrinkage cracks.
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