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Nov 27, 2021, 03:21 PM 113 read

Importance Of Temperature In Die Casting


To what extent have metals been independently cast? It all depends on the metal you use and the extent to which you comply with pressure casting standards in terms of temperature. Does mold temperature matter? Absolutely. If you want to avoid casting defects and other problems, casting temperature control is a real problem. It is important to understand the temperature difference between metals in decompression casting and the consequences of poor temperature control in die casting.   General effect of temperature on die casting Generally, the tensile strength and yield strength of cast alloys decrease with the increase of temperature. If you need parts with high tensile strength, be sure to keep this fact in mind. In addition, the ductility increases with the increase of temperature, but the change depends on the type of cast alloy. For example, aluminum is less ductile than zinc, but the temperature of aluminum must be higher in the process.   Thermal factors in die casting The thermal factors of die casting include the temperature of the alloy used for casting, the temperature of the die itself and the temperature of the die casting machine. For the highest quality parts, all these factors must be kept within the optimal temperature range. If the temperature of molten metal is too high for the die, the die will be damaged, resulting in premature thermal inspection of die steel. If the mold temperature is too low, when the metal flows into the mold, it will reduce the metal temperature too quickly and lead to defects - especially increased porosity or incorrect operation of the casting surface.   Temperature precautions for pressure casting To avoid forced forming, you want the alloy to be about 50 to 70 degrees Fahrenheit higher than the initial crystallization temperature. The mold itself needs to be kept at about one third of the alloy temperature. The correct temperature of the casting chamber is a complex calculation and will be determined by the casting engineer.   Effect of temperature on various pressure molten metals So how does temperature affect the different metals used in pressure casting?   Here are some useful examples: aluminium Aluminum is one of the most popular choices for cast metals. It is light, durable and has good corrosion resistance. The most popular die cast aluminum alloys are 360, 380 and 413.   For example, for aluminum 380, you will see a tensile strength of 48 to 75 degrees and a yield strength of 24 degrees. When the yield strength remains constant, the tensile strength of 212 degrees and 45 Ksi (kip per square inch) is reached. 24. For 390 aluminum, the yield strength of 500 degrees ranges from 41 Ksi to 18 Ksi.   zinc Zinc is another very popular die casting alloy. Some of the common and most popular zinc alloys include Zamak 3, 5 and 7.   For these alloys, a temperature of 75 degrees produces an average of 40 Ksi, while a temperature of 275 degrees produces an average Ksi as low as 10. Other zinc alloys show similar yield strength, which decreases with the increase of temperature.   Aoxu die casting temperature control standard In aoxu die casting, we attach great importance to the temperature control during die casting. We mainly use aluminum die castings and have rich experience in maintaining our casting materials and equipment at the ideal temperature of such casting. We also have state-of-the-art equipment, such as mokon hot oil unit, to maintain mold temperature during die casting.   In addition, we perform thermal control on the die casting machine to maintain the appropriate oil temperature, and our holding furnace maintains the appropriate metal temperature in the die casting machine. Our foundry unit is designed to help us maintain extremely accurate temperature control throughout the casting environment, as well as a team of process engineers proficient in critical temperature range and temperature control.

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