A kind of preparation method of high thermal conductivity bakeware

Abstract

The invention relates to a preparation method of a high-thermal-conductivity baking tray. The preparation method comprises the steps that an aluminum alloy ingot is added into a smelting furnace to besmelted, and the smelting temperature is controlled to be 740-760 DEG C; an Al-5B alloy is added into the smelting furnace, the temperature is controlled to be 740-760 DEG C, and heat preservation isconducted for 0.5-1 h; and an Al-10Sr alloy is added into the smelting furnace, the temperature is controlled to be 740-760 DEG C, heat preservation is conducted for 0.5-1 h, and thus a molten aluminum alloy is obtained; the molten aluminum alloy is refined, degassed and subjected to slag removal, and thus die casting liquid is obtained; the die casting liquid is transferred to a high-pressure hydraulic die casting machine, and an aluminum alloy baking tray blank is obtained through die casting of the baking tray; and after the aluminum alloy baking tray blank is polished, coating is conducted to obtain a finished high-thermal-conductivity baking tray. The baking tray prepared through the preparation method is simple in manufacturing method, good in thermal conductivity effect and suitable for being used and popularized in the baking field.

Description

technical field [0001] The invention relates to the field of baking pans, in particular to a method for preparing a high thermal conductivity baking pan. Background technique [0002] The oven has now become an indispensable household appliance in the family, and the food baked in the oven is delicious. There are many kinds of materials for the baking tray of the oven, the more common ones are stainless steel baking tray, aluminum baking tray, glass baking tray, other alloy baking trays, etc. Among them, the heat conduction effect of the steel baking tray is the worst, which makes it easy to burn during the baking process. The heating is uneven, and the aluminum alloy baking pan has become the best choice. In the field of aluminum alloy manufacturing, die-casting is currently the most important casting process. It has high production efficiency and high material utilization rate, and is suitable for large-scale industrial production. In order to ensure the fluidity during ...

AI Technical Summary

Problems solved by technology

In the prior art, there have been reports of changing the thermal conductivity by changing the silicon phase. By adding 0.02% boron and 0.03% strontium to undergo composite modification, the aluminum-silicon alloy is treated, and the Si phase changes from lamellar to fibrous. After 350 ℃ for four hours, the thermal conductivity of the alloy is increased to about 179W / (m·K), but the above studies only use the aluminum alloy ENAB-44200 as the raw material. When the aluminum alloy ADC10 or ADC12 is used, due to the difference between the latter two The copper content is much higher than that of ENAB-44200, and the finished products obtained by die casting under the above conditions are prone to copper precipitation

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