Zinc port inductor baking technology on hot-dip-Al-Zn steel sheet production line
A baking process and induction body technology, applied in the hot dip plating process, metal material coating process, coating and other directions, can solve the problem that the baking effect and life of the induction body cannot be guaranteed, the structure of the induction body is unstable, and the baking time is shortened. Time and other problems, to achieve the effect of shortening the baking time, improving the baking process, and shortening the baking time
Active Publication Date: 2012-03-28
ZHEJIANG HUADA NEW MATERIAL
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Problems solved by technology
However, the above process cannot shorten the baking time without guaranteeing the baking effect and life of the induction body; there are technical defects such as unstable structure of the induction body, short service life, long baking time, and high energy consumption.
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[0008] The present invention will be described in detail below in conjunction with specific embodiments: the aluminum-zinc pot inductor baking process of the present invention includes the following two processes:
[0009] A. Natural curing time: Make the ramming material into a concrete fluid shape, stick a layer of asbestos board on the inner wall of the induction body with water glass, support the wooden mold and copper sleeve, pour the fluid ramming material, and 24 hours after the pouring is completed Cover the inside and the surface with wet sacks or other similar materials, and sprinkle water frequently to ensure that the covering materials are in a damp state. After 24 hours, they should be naturally cured for 7 days, and the ambient temperature should be ≥15°C.
[0010] B. Baking of the induction body: After the natural curing of the refractory material of the induction body, bake according to the following baking curve, and burn the wood mold. In the process of burnin...
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The invention discloses a zinc port inductor baking technology on a hot-dip-Al-Zn steel sheet production line, which comprises the flowing steps: 1. a natural curing process: manufacturing a pounding material into a concrete fluid shape, attaching an asbestos board layer on the inner wall of an inductor, erecting a wood pattern and a copper sheathing, and pouring the concrete fluid-shaped pounding material; and 2. an inductor baking process, baking according to the following baking curves: baking at the temperature range of the room temperature to 110 DEG C with a heating speed of 10 DEG C per hour, and preserving the temperature for 48 hours; baking at the temperature range of 111 DEG C to 200 DEG C with a heating speed of 10 DEG C per hour, and preserving the temperature for 48 hours; baking at the temperature range of 201 DEG C to 350 DEG C with a heating speed of 10 DEG C per hour, and preserving the temperature for 72 hours; cooling the temperature below 100 DEG C slowly after heat preservation; and braking according to the following temperatures after the inductor and a furnace body are in butting joint: baking at the temperature range of the room temperature to 150 DEG C with a heating speed of 30 DEG C per hour, and preserving the temperature for 5 hours; baking at the temperature range of 151 DEG C to 350 DEG C with a heating speed of 30 DEG C per hour, and preservingthe temperature for 5 hours; baking at the temperature range of 351 DEG C to 530 DEG C with a heating speed of 50 DEG C per hour, and preserving the temperature for 48 hours; and pouring an aluminium-zinc liquid into a molten channel after heat preservation. The stability of the inductor structure is guaranteed, and the service life is prolonged through improving the molding materials as well as the pounding and baking technology of the zinc port inductor for hot-dip-Al-Zn steel sheet band.
Description
technical field [0001] The invention relates to a zinc pot induction body baking process on a hot-dip galvanized steel sheet production line, which belongs to the production process of hot-dip galvanized steel sheets. Background technique [0002] The production line of hot-dip galvanized steel sheets generally adopts the following process flow: one is the rolling process of hot-rolled steel sheets being cold-rolled by the tandem rolling mill; The annealing process of annealing, the fourth is the hot-dip galvanizing process of the annealed steel plate through the zinc pot, the fifth is the stretching and bending process of the hot-dip galvanized steel plate after stretching and bending, and the sixth is the passivation and oiling of the hot-dip galvanized steel plate. The process finally becomes a finished product of hot-dip galvanized steel sheet; the galvanized layer is heated by an induction body to provide heat. The induction body includes a shell welded by steel plates...
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IPC IPC(8): C23C2/06C23C2/40
Inventor 金杭川何耀军姜长根姜震宇
Owner ZHEJIANG HUADA NEW MATERIAL