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Precise stainless steel strip annealing method special for electric cooker cap

A stainless steel strip and stainless steel technology, applied in the field of annealing of precision stainless steel strips for rice cooker lids, can solve problems such as uneven color, failure to meet the surface requirements of rice cooker lids, and high grain growth rate, etc., to achieve uniform color effects

Inactive Publication Date: 2019-09-20
JIANGSU YONGJIN METAL TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The thickness specification of the stainless steel strip commonly used in the rice cooker cover market is 0.41. Market feedback has always had the problem of surface color difference and uneven color for this product; according to the stainless steel annealing process, the longer the holding time, the greater the grain nucleation rate, and The greater the grain growth rate; the current traditional stainless steel strip annealing method has been unable to meet the market's requirements for the surface of the rice cooker cover

Method used

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Examples

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Embodiment Construction

[0014] The technical solutions in the embodiments of the present invention will be clearly and completely described below.

[0015] A method for annealing special precision stainless steel strips for electric rice cooker lids, comprising the following steps:

[0016] Step 1, preheating: the stainless steel strip is conveyed by the tension roller and enters the furnace preheating zone, where the stainless steel strip is preheated to 600~800°C;

[0017] Step 2, heating: After the stainless steel strip is preheated, it enters the heating zone of the furnace through the transmission of the tension roller. The stainless steel strip is heated in the heating zone by gradual heating and heat preservation. The stainless steel pipe strip is heated to 1050- 1150°C, in this area, the temperature reaches the recrystallization temperature of the stainless steel strip, the grains are recrystallized and refined, and the destroyed uneven grains and crystal bonds are recombined;

[0018] Step ...

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Abstract

The invention discloses a precise stainless steel strip annealing method special for an electric cooker cap. A stainless steel strip is annealed through the manners of preheating, heating, air cooling and water cooling. Compared with the prior art, the precise stainless steel strip annealing method special for the electric cooker cap has the effects that through changing the curve line of the annealing furnace temperature in the annealing acid pickling procedure, the mechanical property and the surface roughness are changed, the rust prevention is achieved, and the luster is uniform; and through the emergent cooling measure at the moment of discharging, the steel strip rapidly achieves the normal temperature, the obtained stainless steel strip is hard in surface layer and soft in nature, and the stainless steel strip achieves the material property of machining the electric cooker cap.

Description

technical field [0001] The invention relates to the technical field of precision stainless steel production, in particular to an annealing method for precision stainless steel strips specially used for electric rice cooker lids. Background technique [0002] The thickness specification of the stainless steel strip commonly used in the rice cooker cover market is 0.41. Market feedback has always had the problem of surface color difference and uneven color for this product; according to the stainless steel annealing process, the longer the holding time, the greater the grain nucleation rate, and The faster the particle growth rate is, the more traditional stainless steel strip annealing methods can no longer meet the market's requirements for the surface of rice cooker lids. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an annealing method for precision stainless steel strips specially used for electric rice cook...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/26C21D9/54
CPCC21D1/26C21D9/0062C21D9/54
Inventor 王兵闯
Owner JIANGSU YONGJIN METAL TECHNOLOGY CO LTD
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