1. furnace heating temperature on the quality of casting material

Dissolution characteristics of the large range between the solidus and liquids of high-carbon chromium bearing steel and carbide steel to control the furnace temperature to control the melt temperature, the furnace gas heat temperature control 1 150-1 180 ° C, and thus to ensure that the carbide steel, fluid analysis and basic elimination of the premise, as far as possible to reduce decarburization amount.

2. furnace heating time on the quality of casting material

According to the decarburization of the furnace heating time of casting material, ribbon, fluid analysis and the impact of the loose rating range, we can see, and appropriately increase the heating time, and allows decarburization an average increase of 0.01mm; ribbon level decreased by 0.2 in loose rating pass rate has increased significantly.


3. Compression ratio of casting material quality

Compression ratio by analyzing the impact of the casting material quality, we can see to improve the compression ratio can improve the finished material in loose rating.

4. casting materials, performance and quality of research
 The casting material and mold zinc material impact on the quality of wear tube

To explore due to the inherent flaws in the casting material core part quality impact on the wastepaper and cold-drawn tube hot piercing, were casting with molded bearing steel billet, processed into steel pipe quality comparison test.



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