Cold rolled strip steel pre-oxidation device

A technology of cold-rolled strip steel and pre-oxidation, which is applied in the direction of coating, furnace type, furnace, etc., can solve the problems of reducing wettability, poor galvanized coating, negative impact of coating pulverization, etc., to improve wettability, structure Simple, avoid negative effects

Active Publication Date: 2017-12-12
MAANSHAN IRON & STEEL CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

When the proportion of MnO, SiO2, Mn2SiO4 and other oxides on the surface of the strip steel is high, the wettability will be reduced in the subsequent galvanizing process, causing poor galvanized coating and negatively affecting the pulverization of the coating. Zinc wire cannot be produced normally

Method used

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  • Cold rolled strip steel pre-oxidation device

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Embodiment Construction

[0018] Below with reference to the accompanying drawings, through the description of the embodiments, the specific embodiments of the present invention, such as the shape, structure, mutual position and connection relationship between the various parts, the role and working principle of the various parts, etc., will be further described. Detailed instructions:

[0019] as attached figure 1 As shown, the present invention is a cold-rolled strip pre-oxidation device, and the cold-rolled strip pre-oxidation device includes a saturated steam pipeline 1, a gas distribution component 2, one end of the saturated steam pipeline 1 and a saturated steam source 3 Connected, the other end of the saturated steam pipeline 1 extends into the annealing furnace 4, and the end of the saturated steam pipeline 1 extending into the annealing furnace 4 is the inlet nozzle 5, and the inlet nozzle 5 communicates with the gas distribution part 2, and the gas distribution part 2 Including the componen...

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Abstract

The invention provides a cold rolled strip steel pre-oxidation device applied to the technical field of cold rolled strip steel production equipment. One end of a saturated steam pipeline (1) of the cold rolled strip steel pre-oxidation device communicates with a saturated steam source (3).The other end of the saturated steam pipeline (1) extends to an annealing furnace (4). The saturated steam pipeline (1) extends to an gas inlet pipe opening (5) formed in one end of the interior of the annealing furnace (4).The gas inlet pipe opening (5) communicates with a gas distributing part (2).A part body (7) of the gas distributing part (2) is internally provided with a gas baffle (8).The cold rolled strip steel pre-oxidation device is simple in structure, controllable pre-oxidation of strip steel in the annealing furnace in the process of cold rolled strip steel producing is achieved, precipitation of Mn and Si in the strip steel is reduced, the wettability can be improved effectively in the process of subsequent galvanizing of the strip steel, poor galvanizing coating is restrained, reliable production of the high strength strip steel of continuous galvanizing line is achieved, and the quality of the strip steel is improved.

Description

technical field [0001] The invention belongs to the technical field of cold-rolled strip production equipment, and more specifically relates to a cold-rolled strip pre-oxidation device. Background technique [0002] At present, when the continuous galvanizing and annealing production line produces high-strength strip steel containing Mn and Si, these alloying elements tend to diffuse to the surface of the strip steel during the annealing process, and the surface concentration is several times higher than the internal concentration. The Mn and Si of the floating body will form oxides such as MnO, SiO2, Mn2SiO4. When the proportion of MnO, SiO2, Mn2SiO4 and other oxides on the surface of the strip steel is high, the wettability will be reduced in the subsequent galvanizing process, causing poor galvanized coating and negatively affecting the pulverization of the coating. Zinc wire cannot be produced normally. Contents of the invention [0003] The technical problem to be s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C8/18C21D1/26C21D1/74C21D9/56
CPCC21D1/26C21D1/74C21D9/561C23C8/18
Inventor 许翔候莉庆左怀拯
Owner MAANSHAN IRON & STEEL CO LTD
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