Production technology of biroller thin band continuous casting high speed steel

Abstract

A production process of twin-roll thin strip continuous casting high-speed steel, characterized in that: (1). The side sealing plate is baked and preheated before casting, and the preheating temperature is 900-1400°C; (2). Zero roll gap is adopted. For pouring high-speed steel casting strip, the pouring temperature is 1440~<1480°C. After forming the molten pool, adjust the roll gap according to the thickness of the casting strip, and pour at 35m / min<casting strip speed≤100m / min. The invention can meet and guarantee the requirement of continuous casting of high-speed steel twin-roll thin strip, and the surface of the cast strip is smooth, and the surface and edge defects are obviously reduced, and it has the advantages of low energy consumption, good quality and high production efficiency when used in industrial production .

Description

technical field [0001] The invention belongs to the field of metal casting, in particular to a production process of twin-roll strip continuous casting high-speed steel. Background technique [0002] Twin-roll thin strip continuous casting technology can directly cast and roll molten steel into thin metal strips. It is mainly used in the production and research of stainless steel and carbon steel, and there is less research on high-speed steel. [0003] At present, more than 40 twin-roll thin strip continuous casting machines at home and abroad have carried out laboratory or industrial experiments, and there are related records. Such as: [1] 1996, (3): 25 "World Metal Herald" Bai Bingzhong's "New Progress in World Strip Steel Continuous Casting Technology"; [2] 1997 (2) "Special Steel Technology" Zhou Shouzhi, Pan Fusheng, Ding Peidao " Application research of twin-roll continuous casting thin strip technology in high-speed steel"; [3] (1997) 792-796 "Materials Processing T...

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Problems solved by technology

[0005] It can be seen from the above records that the high-speed steel twin-roll thin strip continuous casting technology cannot realize industrial production at present.

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