TMCP type marine austenitic stainless steel composite plate and preparation method thereof

A technology of austenitic stainless steel and clad plate, applied in chemical instruments and methods, lamination, layered products, etc., can solve the problems of influence of rolling power and complicated process, and achieve high rolling power and simple process. , reduce the effect of drilling

Inactive Publication Date: 2018-12-07
NANJING IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, using the vacuum rolling method to produce composite panels has better advantages than the existing traditional technology. The traditional billet assembly process mainly uses the method of sealing and welding around, then dril

Method used

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  • TMCP type marine austenitic stainless steel composite plate and preparation method thereof
  • TMCP type marine austenitic stainless steel composite plate and preparation method thereof
  • TMCP type marine austenitic stainless steel composite plate and preparation method thereof

Examples

Experimental program
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Effect test

Example Embodiment

[0034] Example 1

[0035] This embodiment provides a TMCP type marine austenitic stainless steel composite plate and a preparation method thereof. The billet structure is as follows figure 1 As shown, the details are as follows:

[0036] Select the DH32 steel grade with the base material blank thickness of 102mm, and the chemical composition is shown in Table 1. The composite blank is S31603 austenitic stainless steel with a thickness of 18mm, and the rolled product thickness is 3+17mm S31603+DH32 composite plate.

[0037] Grind one surface of two DH32 base material blanks and two S31603 composite material blanks so that the surface is completely exposed with fresh metal. Apply silicone release agent or alumina / magnesia type release agent to the unpolished surface of the composite material, and dry the release agent at 550℃~650℃. Fix the seal by spot welding on the four peripheral parts of the polished surface of one of the base materials. The seal is made of carbon steel; superimpo...

Example Embodiment

[0040] Example 2

[0041] The TMCP type marine austenitic stainless steel composite plate and preparation method provided in this embodiment are specifically as follows:

[0042] The DH36 steel grade with a base material blank thickness of 60mm is selected. The chemical composition is shown in Table 1. The composite blank is S30403 austenitic stainless steel with a thickness of 12.5mm, and the rolled product thickness is S30403+DH36 composite plate with a thickness of 2.5+12mm.

[0043] Grind one surface of two DH36 base material blanks and two S30403 composite material blanks so that the surface is completely exposed with fresh metal. Apply silicone release agent or alumina / magnesia type release agent to the unpolished surface of the composite material, and dry the release agent at 550℃~650℃. Fix the seal by spot welding on the four peripheral parts of the polished surface of one of the base materials. The seal is made of carbon steel; superimpose the non-composite surfaces of the ...

Example Embodiment

[0045] Example 3

[0046] This embodiment provides a TMCP type marine austenitic stainless steel composite plate and a preparation method thereof, which are specifically as follows:

[0047] Select the AH32 steel grade with the thickness of the base material blank of 82.5mm, and the chemical composition is shown in Table 1. The composite blank is selected as S31703 austenitic stainless steel with a thickness of 16.5mm, and the rolled product thickness is S31703+AH32 composite plate with a thickness of 3.0+15mm.

[0048] Grind one of the surfaces of two AH32 base material blanks and two S30403 composite blanks so that the surface is completely exposed with fresh metal. Apply silicone release agent or alumina / magnesia type release agent to the unpolished surface of the composite material, and dry the release agent at 550℃~650℃. Fix the seal by spot welding on the four peripheral parts of the polished surface of one of the base materials. The seal is made of carbon steel; superimpose t...

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Abstract

The invention discloses a TMCP type marine austenitic stainless steel composite plate and a preparation method thereof and relates to the technical field of bimetal composite manufacture. The preparation method comprises blank preparation, surface grinding, isolating agent brush-coating, assembly blank sealing, electron beam soldering and sealing, heating, rolling and cooling, straightening, and cutting separation. The TMCP type marine austenitic stainless steel composite plate effectively solves the problem of corrosion resistance of the composite austenitic stainless steel in the composite plate, and in the blank preparation process, the steps of drilling and vacuuming are avoided. The preparation method has simple processes and a high rolling yield.

Description

technical field [0001] The invention relates to the technical field of bimetal composite manufacturing, in particular to a TMCP type marine austenitic stainless steel clad plate and a preparation method thereof. Background technique [0002] In recent years, the number of chemical tankers built in China has gradually increased. One of the key technologies for building chemical tanker tanks is the selection of tank lining materials. Good chemical corrosion resistance is an important condition for material selection. Therefore, most of its liquid cargo tanks and liquid cargo pipes are made of stainless steel. In order to ensure corrosion resistance, weldability and economy, the stainless steel commonly used is 316L (00Cr17Ni14Mo2), 304L (0Cr18Ni9) and 2205 duplex stainless steel (22Cr23Ni5Mo3N). Among them, duplex stainless steel has better corrosion resistance and structural strength, but its price is still high at present, which has become a major bottleneck restricting the ...

Claims

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Application Information

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IPC IPC(8): B32B15/18B32B15/01B32B37/06B32B3/08B32B37/10B32B37/08B32B38/00B23P15/00C22C38/02C22C38/04C22C38/06C22C38/42C22C38/44C22C38/46C22C38/48C22C38/50
CPCB23P15/00B32B2307/558B32B2307/71C22C38/001C22C38/02C22C38/04C22C38/06C22C38/42C22C38/44C22C38/46C22C38/48C22C38/50
Inventor 王从道党军李强段东明孙超李东晖
Owner NANJING IRON & STEEL CO LTD
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