What is the cover annealing furnace inner cover? What is the use? 发布时间：2019.03.13　　浏览次数：  

    The hood annealing furnace is a kind of annealing furnace, which mainly indirectly heats the strip through the inner cover of the hood annealing furnace, and the heat that can be obtained by the strip steel is the radiation heat transfer with the inner hood wall. And the gas convection heat transfer capacity is closely related. What is the inner cover of the hood annealing furnace? Let's discuss it with Zhongmenzi Xiaobian!

    In fact, the cover annealing furnace inner cover is an integral part of the cover annealing furnace, and is an indispensable component of the cover annealing furnace to heat the workpiece. What are the uses of the cover annealing furnace inner cover? The main function of the bell annealing furnace is to isolate the coil from the combustion space, so that the coil can be annealed in a protective atmosphere and not oxidized, and heat can be transferred during heating and cooling. The cover annealing furnace inner cover is very important and is a structural component that cannot be lacked in the cover annealing furnace.

        The main body of the inner cover of the cover annealing furnace is a corrugated cylinder welded by a high temperature resistant chrome-nickel steel plate, and the upper part is a sealing head, and a lifting ring for lifting the three-jaw jig is welded on the upper surface of the sealing head. At the bottom is a machined sealing flange. This flange is mainly made of plain carbon steel.

        The flange of the inner cover is placed on the sealing flange surface of the furnace table. Therefore, the inner surface of the inner cover of the cover annealing furnace is completely isolated from the outside by the action of the rubber sealing ring embedded in the sealing surface of the furnace table. It is very good to avoid the entry of air. An annular sealing groove is also arranged on the flange of the inner cover, and a heat-resistant silicone rubber is placed therein to isolate the heating space from the outside, thereby improving the thermal efficiency.

        Between the annular seal groove and the corrugated cylinder, there is also a water tank dedicated to cooling water. The purpose of this water tank is to prevent heat from radiating onto the rubber seal of the furnace to extend its service life. There is also a flow tank on the wall of the sealing groove, which is mainly for facilitating the discharge of cooling water during spray cooling. When the inner cover is not used and placed in other positions, in order not to damage the sealing plane, the outer edge of the flange also contains a support stud.