Direct Rolling Process

To realize direct rolling process, the high temperature non-defective slab billet, thermal insulation equipment sending the slab corners furnace, and the production managing computer and computer hardware condition management area is essential, and a high level of continuous casting and hot coordination rolling operations, production planning and each process is key. According to Japan, South Korea, some manufacturers of experience, as these problems can be solved without affecting the production capacity of the mill hour. As a direct constraint on the steel rolling, according to the manufacturer's experience in Japan, in addition to grain oriented silicon steel, high-grade non-oriented silicon steel, stainless steel and high-grade tin plate, and the rest can be directly rolled steel. Direct hot charging and direct rolling is the development direction of modern hot strip mill. High levels of heat that is directly mounted thermal loading. It is because of direct rolling on the software and hardware requirements are high, after a period of time is difficult to put into direct rolling, the new hot strip mill abroad generally give priority to achieve thermal and direct thermal technology installed furnace installed furnace technology, reserved room with direct rolling process. 
Directly as the direction of rolling hot strip mill is indisputable. Hot rolling process furnace installed many years of production experience, you can get a good energy saving effect; direct hot rolling process furnace installed to further improve energy savings, shorten the production cycle, so caster and rolling mill more closely together. 
In the new hot rolling mill, the direct rolling process to try to consider two compact plant layout, output slab caster and rolling mill roller roller furnace baked directly connected to the layout, but the design should not pursue high percentage for the purpose of direct rolling, but consider the percentage of direct rolling according to variety, size and production capacity requirements, so that the future production plant according to the organization to determine the actual operating level of direct rolling, in order to achieve the best overall economic. No rolling and semi-endless rolling technology is a new technology emerged in recent years. Headless mainly used in hot strip rolling and wire rod production, using the traditional way of rolling mill block frequently bite steel, cast steel and transform the rolling speed, causing the steel head, the tail is difficult to guarantee the quality, lower mill operating rates, the dimensional accuracy of the product is also more difficult to control. In this regard, through scientific and technological workers in the traditional hot-rolled steel billet production line set up after using welding and finishing continuous rolling.