Nitrided steel base plate with excellent corrosion resistance and production method

A technology of nitriding steel and corrosion resistance, which is applied to substrates and production fields of nitriding steel with excellent corrosion resistance, which can solve problems such as poor corrosion resistance and perforation, and achieve excellent corrosion resistance, high fatigue resistance, Avoid the effect of rust

Active Publication Date: 2016-12-14
武汉钢铁有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention overcomes the disadvantages of poor corrosion resistance and perforation in the prior art, and provides a substrate for nitriding steel with no perforation after nitriding, excellent corrosion resistance and guaranteed service life, and a production method

Method used

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  • Nitrided steel base plate with excellent corrosion resistance and production method
  • Nitrided steel base plate with excellent corrosion resistance and production method
  • Nitrided steel base plate with excellent corrosion resistance and production method

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Embodiment Construction

[0032] The present invention is described in detail below:

[0033] Table 1 is the value list of each embodiment of the present invention and comparative example;

[0034] Table 2 is the main process parameter list of each embodiment of the present invention and comparative example;

[0035] Table 3 is a list of the performance tests of the various embodiments of the present invention and comparative examples.

[0036] Each embodiment of the present invention is produced according to the following steps:

[0037] 1) After conventional smelting and continuous casting into billets;

[0038] 2) Heating the slab and controlling the heating temperature at 1200~1300°C;

[0039] 3) Carry out hot rolling, and control the final rolling temperature of the hot rolling at 880~980°C;

[0040] 4) Carry out coiling, and control the coiling temperature at 600~700°C;

[0041] 5) Carry out cold rolling, and control the total reduction rate of cold rolling at 65~80%;

[0042] 6) Annealing:...

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Abstract

A nitrided steel base plate with excellent corrosion resistance comprises, by weight percent, 0.010%-0.10% of C, 0.10%-1.00% of Mn, 0.010%-0.10% of Si, smaller than or equal to 0.02% of P, smaller than or equal to 0.01% of S, 0.50%-1.50% of Als, smaller than or equal to 0.005% of N, 0.10%-1.50% of Cr, 0.01%-1.00% of Cu and 0.01%-1.00% of Ni. A production method comprises the preparing steps of melting and continuous casting blank forming, cast blank heating, hot rolling, reeling, cold rolling, annealing and flattening. Steel used for a traditional iron pan serves as a base body, and rusting can be effectively avoided after nitriding treatment; the surface hardness is high, the corrosion resistance is excellent, the high-temperature performance is stable, and the fatigue resisting strength is high. After the low-carbon steel plate is subjected to the nitriding treatment, the low-carbon steel plate can replace stainless steel and functional coating steel plates to be used for manufacturing woks, corrosion resisting containers and the like.

Description

technical field [0001] The invention relates to a nitriding steel and a production method thereof, in particular to a substrate for nitriding steel with excellent corrosion resistance and a production method thereof. Background technique [0002] At present, the main materials for manufacturing woks are aluminum alloy, stainless steel, and iron. Aluminum alloy pans conduct heat quickly and are heated more evenly. However, when cooking acidic, alkaline or salty food, the aluminum in the pan will dissolve and pollute Food is not good for human health. The stainless steel pot has a beautiful appearance and has the characteristics of "physical non-stick" and "less oil fume", but the pot body is heavier and the price is more expensive. Traditional iron pots are cheap and do not contain other chemical substances. Even if a small amount of iron dissolves, it will not cause damage to the human body. On the contrary, it is also considered the most direct method of iron supplementati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/18C22C38/06C22C38/04C22C38/16C22C38/08C22C38/02C21D8/02
CPCC21D8/0226C21D8/0236C21D8/0242C21D8/0247C22C38/02C22C38/04C22C38/06C22C38/08C22C38/16C22C38/18
Inventor 杨宏武宋乙峰董蓓杜蓉雷洪泽黄道兵白会平涂元强蔡捷
Owner 武汉钢铁有限公司
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