Die casting mold temperature is generally between 150-300 degrees, it is suitable casting stability temperature range.
Mold temperature generally is the surface temperature of the mold, and its standard measurement should be about 1/3 of the pouring temperature of the alloy liquid. But the temperature of die casting molds varies depending on the type of alloy used.
Die casting mold temperature of four alloys
Aluminum Alloys of die casting mold temperature
- Mold temperatures are typically between 200°C and 250°C (392°F to 482°F).
- Maintaining the mold within this range ensures proper metal flow and reduces defects like porosity.
Magnesium Alloys of die casting mold temperature
- Magnesium has lower melting points than aluminum, so mold temperatures are usually kept between 150°C and 200°C (302°F to 392°F).
Zinc Alloys of die casting mold temperature
- Zinc alloys require lower mold temperatures, often between 90°C and 150°C (194°F to 302°F), due to their relatively low melting points and high fluidity.
Copper Alloys of die casting mold temperature
- Copper alloys demand higher mold temperatures, typically around 280°C to 350°C (572°F to 752°F), to ensure proper casting.
The influence of different die casting molds on the quality of die castings
Below 130 degrees:
When the mold temperature is lower than 130 degrees, almost all of the castings will appear undercasting, fracture, cold segregation, flow pattern and other defects, due to the casting temperature is too low, the yield is almost zero.
130-150 degrees:
When the mold temperature between 130-150 degrees, because the mold temperature is close to the ideal temperature, although the casting can be molded.
However, the quality is not stable most of the casting surface with flow patterns, cold segregation phenomenon.
150-300 degrees:
Mold temperature between 150-300 degrees, it’s a temperature range suitable for casting stability.
Higher than 300 degrees:
Higher than 300 degrees casting temperature is too high, easy to produce surface bubbles, sticky, shrinkage, fusion and other defects.
Factors affecting the temperature of die-casting molds
Characteristics of alloy materials
Different metal alloys (e.g. aluminum, magnesium, zinc, copper, etc.) have different melting points, which determines the range of temperatures required when pouring metal, thus affecting the working temperature of the mold.
Mold material
The thermal conductivity of the mold material (e.g. tool steel or special alloys) affects the distribution and stability of the mold temperature.
Coolant system
The cooling waterways or cooling medium in the mold (e.g., water, oil, or gas) can have a direct effect on the temperature control of the mold.
Mold design
The complexity of the mold cavity, the wall thickness, and the pouring system (e.g., gate and overflow channel design) all affect the distribution and transfer of heat, thus changing the temperature behavior of the mold.
Haichen die casting mold
Haichen is a factory specializing in the production of die-casting machines including cold chamber die casting machine and hot chamber die casting machine.
High Precision
Die casting molds designed for tight tolerances and high-quality surface finishes.
Customizable
Tailored for specific industries, allowing for unique designs depending on product requirements.
Durability
Made from robust materials, such as H13 tool steel or other heat-resistant alloys, to withstand repeated high-pressure casting cycles.
Support for Various Alloys
Capable of casting aluminum, zinc, or magnesium alloys, depending on the application.
The die casting mold temperature ranges are based on a combination of alloy properties, mold structure and casting conditions. Controlling the mold temperature is crucial to ensuring the quality and longevity of both the mold and the finished cast part.
