Annealing process of cold-rolled stainless steel coil cover type annealing furnace

A technology of cold-rolled stainless steel and bell-type annealing furnace, which is applied in the direction of furnace, furnace type, heat treatment furnace, etc., can solve the problems of large gap on the side of the steel coil, uneven color and uneven surface oxidation of the inner ring of the steel coil, etc. Requirements for use, uniform surface color and effect of annealing process improvement

Pending Publication Date: 2022-02-15
ZHANGJIAGANG POHANG STAINLESS STEEL
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0004] For the 304XD antibacterial stainless steel in the prior art, after the annealing process in the bell annealing furnace, the inner ring and surface of the steel coil are not uniformly oxidized, resulting in uneven color, which leads to the problem that the steel coil cannot satisfy customers for subsequent use, the purpose of the present invention The purpose is to provide a cold-rolled stainless steel coil bell annealing furnace annealing process, through the improvement of the packaging structure of the cold-rolled stainless steel coil before annealing, the problem of large internal gaps on the side of the steel coil is solved, and the annealing process is improved at the same time , after annealing in the bell annealing furnace, the surface color is uniform, meeting customer requirements

Method used

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  • Annealing process of cold-rolled stainless steel coil cover type annealing furnace
  • Annealing process of cold-rolled stainless steel coil cover type annealing furnace
  • Annealing process of cold-rolled stainless steel coil cover type annealing furnace

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Embodiment Construction

[0035] The technical solutions of the invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the invention, not all of them. Based on the embodiments of the invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the invention.

[0036] In the description of the invention, it should be noted that the terms "centre", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate The orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be configured in a specific orientation, and ope...

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Abstract

The invention discloses an annealing process of a cold-rolled stainless steel coil cover type annealing furnace, which is used for annealing 304 antibacterial stainless steel and is characterized by comprising the following steps of: A, packaging a steel coil; and B, annealing the steel coil in the cover type annealing furnace. The annealing process has the beneficial effects that the problem that the internal gap of the side face of the steel coil is large is solved, meanwhile, the annealing process is improved, after annealing is conducted in a cover type annealing furnace, the surface color is uniform, and the use requirements of customers are met.

Description

technical field [0001] The invention belongs to the technical field of stainless steel production, and in particular relates to an annealing process of a cold-rolled stainless steel coil bell annealing furnace. Background technique [0002] The steel coil after stainless steel cold rolling needs to be placed in the air after being annealed in the bell annealing furnace, and the outer surface will be oxidized. In the prior art, after the 304XD antibacterial stainless steel is annealed in a bell annealing furnace, the inner ring and surface of the steel coil are oxidized unevenly, resulting in uneven color, which makes the steel coil unable to satisfy customers for subsequent use. Contents of the invention [0003] 1. Technical problems to be solved [0004] For the 304XD antibacterial stainless steel in the prior art, after the annealing process in the bell annealing furnace, the inner ring and surface of the steel coil are not uniformly oxidized, resulting in uneven color...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/26C21D1/74C21D9/52B65B13/18
CPCC21D1/26C21D1/74C21D9/52B65B13/18
Inventor 张华年白伟伟
Owner ZHANGJIAGANG POHANG STAINLESS STEEL
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