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High-corrosion-resistance stainless steel and manufacturing method thereof

A stainless steel, corrosion-resistant technology, applied in the field of high-corrosion-resistant stainless steel production, can solve the problem that the lid of the thermos cup is not easy to unscrew, and achieve the effect of avoiding excessive internal pressure, saving process and cost, and avoiding difficulty in opening

Pending Publication Date: 2021-07-02
陈兆启
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to make up for the deficiencies of the prior art, if the hot water poured into the thermos cup is not drunk for a long time, the water temperature will gradually drop to normal temperature. The pressure inside the thermos cup is relatively low compared to the initial pressure, and the interior of the thermos cup will form a relatively negative pressure state, which makes the lid of the thermos cup difficult to unscrew. The invention proposes a high corrosion-resistant stainless steel and its manufacturing method

Method used

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  • High-corrosion-resistance stainless steel and manufacturing method thereof
  • High-corrosion-resistance stainless steel and manufacturing method thereof
  • High-corrosion-resistance stainless steel and manufacturing method thereof

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preparation example Construction

[0050] The preparation method of corrosion resistance stainless steel is as follows:

[0051] S1: Weigh the corresponding ratio of the corresponding ratio in the above-mentioned material group 2, and add it to the high temperature arc furnace, melting, the melting temperature is 1570-1630 ° C, then the steel water temperature is heated to 1630 -1690 ° C, the corresponding components are added, and the steel water is refined in the steel baffle. After refining, it is placed in a vacuum degassing apparatus for degassing treatment, and the absolute pressure in the vacuum degassing device is less than 70Pa. The holding time is 15-20 min;

[0052] S2: Pour the steel water in S1 into the mold to cast into a slab, heat 1187-1260 ° C at 5-10 ° C / min, then heat rolled into a hot rolled sheet, and then cold rolling The plate is placed in the forging machine forging the stainless steel of the columnar groove structure, the forging temperature of the first forging program is 1130-1250 ° C, ...

Embodiment approach

[0060] As an embodiment of the present invention, the inner wall of the first annular connection groove 4 is uniformly provided with convex thorn 11; the convex thorn 11 is composed of a material group; when operating, injecting the first annular connection groove 4 inside The connection steel water will be integrally formed with the convex thorn 11 in the inner wall of the first annular connection groove 4, which in turn has a more secure connection of the inner wall of the steel water to the first annular connection groove 4, further increases the first annular shape. The connection intensity and anti-drawing of the connecting groove 4 and the stainless steel four 5 are connected.

[0061] As an embodiment of the present invention, the bottom edge of the stainless steel 2 2 and the top edge of the stainless steel one 3 are opened with a second annular connection groove 8 associated with two sets of first annular connecting grooves 4; the second annular shape The connecting groov...

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Abstract

The invention belongs to the technical field of high-corrosion-resistance stainless steel production, and particularly relates to high-corrosion-resistance stainless steel and a manufacturing method thereof. The high-corrosion-resistance stainless steel comprises a first material group, a second material group and a third material group; and the first material group is prepared from the following raw materials in percentage by weight: 0.08 to 0.15 percent of C, 0.01 to 0.6 percent of Si, 0.02 to 0.6 percent of Mn, 0.01 to 0.03 percent of P, 0.0002 to 0.03 percent of S, 12 to 14 percent of Cr, 0.8 to 1.5 percent of Mo, 1.2 to 6 percent of Bi, 0.1 to 0.3 percent of V and the balance of Fe. Third elastic stainless steel can maintain the interiors of second stainless steel and the third stainless steel III to be in a state similar to constant pressure, so that the problem that a sealing cover on a vacuum cup is difficult to open when the temperature is reduced after water in the second stainless steel and the third stainless steel is stored for a long time is avoided; the third stainless steel is made of the first material group, the second stainless steel is made of the second material group, and the content of Cr in the first material group and the content of Cr in the second material group are high, so that the corrosion resistance of the second stainless steel and the first stainless steel is good; and meanwhile, the splicing position of the second stainless steel and the third stainless steel does not need to be welded, and therefore convenience is achieved.

Description

Technical field [0001] The present invention belongs to the technical field of high corrosion stainless steel production, and is specifically a high corrosion stainless steel and a manufacturing method thereof. Background technique [0002] Stainless Steel is a short-resistant steel-resistant steel, air, steam, water, etc. weakly corrosive media or stainless steel, referred to as stainless steel; chemically resistant to chemically resistant media (acid, alkali, salt and other chemical immersion) Corrosion-corrosive steel is called acid resistant steel. [0003] Since the difference between the two is different from the chemical composition, ordinary stainless steel generally does not chemologically corrode, and acid-resistant steel is generally stainless. The term "stainless steel" is more than just a simple refers to a stainless steel, but a good performance of more than 100 industrial stainless steels, each of which has good performance in its particular application. The key to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/22C22C38/24C22C38/38C22C38/06C22C33/04B22D19/16B23P15/00
CPCC22C38/02C22C38/04C22C38/22C22C38/002C22C38/24C22C38/38C22C38/06C22C33/04B22D19/16B23P15/00
Inventor 陈兆启姚天成
Owner 陈兆启
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