Manufacturing method of austenitic stainless steel for non-magnetic color-difference-free beer barrel

A technology of austenitic stainless steel and manufacturing method, which is applied in the field of austenitic stainless steel, can solve the problems of affecting the taste of beer drinking, not being able to fully meet the demand, and affecting the service life, so as to improve the popularity of enterprises and products, avoid the occurrence of color difference defects, Effect of improving corrosion resistance

Active Publication Date: 2021-07-13
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

The beer kegs produced by ordinary 304 stainless steel are metastable austenitic stainless steel at room temperature, and cold work hardening occurs in the process of stretching and stamping to manufacture beer kegs, and the metastable austenite structure transforms into a ferromagnetic one. Martensitic structure, beer keg products show demagnetization, which not only increases the risk of failure and cracking caused by cold hardening during use of beer keg products, affects the service life, but also affects the taste of beer due to the precipitation of iron elements
In addition, due to the surface color difference of raw materials and ribbon defects, the color difference and ribbon defects of beer keg products will still appear after stretching and stamping, which directly affects the eff

Method used

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  • Manufacturing method of austenitic stainless steel for non-magnetic color-difference-free beer barrel
  • Manufacturing method of austenitic stainless steel for non-magnetic color-difference-free beer barrel

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0047] This embodiment provides a kind of austenitic stainless steel suitable for the production of non-magnetic and non-chromatic beer kegs. Nickel 8.02%, copper 0.45%, and iron balance. The manufacturing method of the austenitic stainless steel material of the non-magnetic and non-chromatic beer keg is as follows:

[0048] S1. Smelting and continuous casting of the various raw materials of the austenitic stainless steel into billets, and then performing hot rolling, annealing and pickling of hot-rolled steel coils, defect grinding, cold rolling, cold rolling, annealing and pickling of the obtained billets in sequence, and Finishing, surface color difference, material magnetic testing.

[0049] S2. The hot-rolled black steel coil is continuously annealed at 950-1200°C, the temperature in the first preheating zone is 980°C, the temperature in the first to fifth heating zones is 1170°C, and the temperature in the first holding zone is 1170°C. After annealing, fast water coolin...

Embodiment 2

[0057] This embodiment provides a kind of austenitic stainless steel suitable for the production of non-magnetic and non-chromatic beer kegs. Nickel 8.03%, copper 0.48%, and iron balance. The manufacturing method of the austenitic stainless steel material of the non-magnetic and non-chromatic beer keg is as follows:

[0058] S1. Smelting and continuous casting of the various raw materials of the austenitic stainless steel into billets, and then performing hot rolling, annealing and pickling of hot-rolled steel coils, defect grinding, cold rolling, cold rolling, annealing and pickling of the obtained billets in sequence, and Finishing, surface color difference, material magnetic testing.

[0059] S2. The hot-rolled black steel coil is continuously annealed at 950-1200°C, the temperature in the first preheating zone is 980°C, the temperature in the first to fifth heating zones is 1165°C, and the temperature in the first holding zone is 1165°C. After annealing, fast water cool...

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Abstract

The invention provides a manufacturing method of austenitic stainless steel for a non-magnetic color-difference-free beer barrel. The manufacturing method comprises the following steps: continuously casting raw materials of the austenitic stainless steel into a steel billet through a smelting process; sequentially carrying out hot rolling, hot rolled steel coil annealing and pickling, defect grinding, cold rolling, cold rolling, annealing and pickling and finishing on the obtained steel billet; and sequentially performing surface color difference and material magnetism detection on the steel billet machined through the finishing process in the S2 to obtain the austenitic stainless steel suitable for producing the non-magnetic color-difference-free beer barrel. According to the manufacturing method of the austenitic stainless steel for the non-magnetic and color-difference-free beer barrel, stainless steel materials produced by the manufacturing method are used for nearly 3 million stainless steel beer barrels, draught beer barrels, wine barrels, beer fresh-keeping barrels, beer kettles and chemical barrels in numerous international famous brewery enterprises, the advanced technology of steel manufacturing in China is shown, the popularity of enterprises and products is improved, and about 30 million economic benefits are created for the enterprises.

Description

technical field [0001] The invention belongs to the technical field of austenitic stainless steel, and in particular relates to a method for manufacturing an austenitic stainless steel beer barrel without magnetism and color difference. Background technique [0002] Austenitic stainless steel is currently the most widely used chromium-nickel stainless steel, of which 304 steel is a typical austenitic stainless steel, which has good corrosion resistance, heat resistance, low temperature strength and mechanical properties. It has good processability and weldability, and is suitable for food processing, storage and transportation. It has been widely used in heat exchangers, bellows, household products (tableware, cabinets, indoor pipelines, water heaters, boilers, bathtubs), auto parts (windshield wipers, mufflers, molded products), medical appliances, building materials decoration, ship parts and other products use. Beer barrel products are mainly made of plastic, glass, sta...

Claims

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Application Information

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IPC IPC(8): C21D8/02C22C38/42C22C38/58C22C38/04C22C38/02
CPCC21D8/0263C21D8/0236C21D8/0226C21D8/0247C22C38/58C22C38/42C22C38/04C22C38/02C21D2211/001Y02P10/20
Inventor 高哲王华财禹云龙张传晶
Owner 天津太钢天管不锈钢有限公司
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