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Production process suitable for controlling oil stains on surface of austenite cold-rolled stainless steel

A cold-rolled stainless steel, surface oily technology, applied in manufacturing tools, contour control, workpiece surface treatment equipment, etc., can solve the problems of long placement time and high plate temperature, improve surface quality, improve yield and qualified product rate, Even and fine color effect

Pending Publication Date: 2021-10-08
天津太钢天管不锈钢有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Because the temperature of the cold-rolled coil is too high after rolling, and the storage time is too long, the paper mimeograph printed on the surface of the steel strip by heat after the craft paper absorbs oil

Method used

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Embodiment Construction

[0029] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0030] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...

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Abstract

The invention provides a production process suitable for controlling oil stains on the surface of austenitic cold-rolled stainless steel. The production process comprises the following steps that annealing, scale breaking, shot blasting and acid pickling are sequentially carried out on a hot-rolled black coil through a hot-rolling annealing and acid pickling unit, and then, the hot-rolled black coil is manufactured into a No.1 plate; cold rolling is carried out on the No.1 plate through a rolling mill of a production unit, and the No.1 plate is manufactured into a cold-rolled coil; after the cold-rolled coil is sequentially subjected to annealing and pickling work through a cold plate annealing and pickling unit, the cold-rolled coil is manufactured into a cold-rolled stainless steel 2D surface; and the cold-rolled stainless steel 2D surface is subjected to flattening work through a flattening unit, and the cold-rolled stainless steel 2D surface is manufactured into a stainless steel 2B surface. According to the production process suitable for controlling the oil stains on the surface of the austenitic cold-rolled stainless steel, through the step A2, the possibility that white oil stains appear can be reduced to the maximum extent, the color of the surface of the cold-rolled coil is uniform and fine, and pollution to the environment during surface polishing and grinding is relieved.

Description

technical field [0001] The invention belongs to the application field of stainless steel cold-rolled products, and in particular relates to a production process suitable for controlling oil stains on the surface of austenitic cold-rolled stainless steel. Background technique [0002] In the production process of cold-rolled stainless steel sheet, the rolling process is an important process to control the plate shape, thickness and surface quality. Production quality is crucial. [0003] In actual production, the surface of the cold plate after rolling often has quality defects like white oil stains, which are caused by the uneven distribution of residual rolling oil on the surface; in the process of actual application of stainless steel, such as in decoration, elevators Some industries, such as home appliances and tableware, use untreated 2B surfaces, and defects such as color difference caused by white oil stains do not meet the requirements for use; at the same time, oil ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/24B21B37/28B21B45/02B21B38/04
CPCB21B1/24B21B37/28B21B45/0251B21B45/0278B21B38/04
Inventor 李兰兰刘国王华财
Owner 天津太钢天管不锈钢有限公司
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