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Stainless steel composite plate of vacuum container and preparation method thereof

A vacuum container and stainless steel plate technology, which is applied in the field of steel plate composites, can solve the problems of high price, large vacuum container size, and container steel plate thickness, etc., and achieve the effects of reducing production costs, improving welding quality, and not easily deformed

Inactive Publication Date: 2020-03-27
杭州盈铭深冷真空工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the size of the large-scale vacuum vessel is large, the steel plate of the vessel is thick, and the material consumption is large. Austenitic stainless steel is expensive, and the cost of large-scale vacuum vessels made of stainless steel is high.
[0003] The cost of carbon steel is much lower than that of stainless steel, but if it is made of ordinary carbon steel, due to structural problems in carbon steel, there are a large number of tiny pores, resulting in a large amount of outgassing and it is difficult to maintain a vacuum state

Method used

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  • Stainless steel composite plate of vacuum container and preparation method thereof
  • Stainless steel composite plate of vacuum container and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0025] Embodiment 1: as figure 1 , the stainless steel clad plate for the vacuum vessel includes a carbon steel plate 2 and a stainless steel plate 1, the carbon steel plate 2 is located outside the vacuum vessel, and the stainless steel plate 1 is located inside the vacuum vessel. The carbon steel plate 2 has a thickness of 15-20 mm, the stainless steel plate 1 has a thickness of 2-3 mm, the stainless steel plate 1 is 304 stainless steel, and the carbon steel plate 2 is Q345R carbon steel.

[0026] The method for preparing a stainless steel composite plate for a vacuum vessel includes the following steps: step 1) processing the groove, the groove is X-shaped or V-shaped, preferably X-shaped in this embodiment, and the part of the stainless steel plate 1 close to the groove is cut off, The resection width L is 14mm; the carbon steel plate 2 and the stainless steel plate 1 are stacked up and down for welding positioning. The welding positioning refers to welding and positioning...

Embodiment 2

[0033] Embodiment 2: A stainless steel clad plate for a vacuum vessel, comprising a carbon steel plate 2 and a stainless steel plate 1, the carbon steel plate 2 is located outside the vacuum vessel, and the stainless steel plate 1 is located inside the vacuum vessel. The carbon steel plate 2 has a thickness of 15-20 mm, the stainless steel plate 1 has a thickness of 2-3 mm, the stainless steel plate 1 is 304 stainless steel, and the carbon steel plate 2 is Q345R carbon steel. A layer of film is set between the carbon steel plate 2 and the stainless steel plate 1, and the film is composed of BOPET film 6 and BOPP film 7, both of which have good tensile properties, heat resistance, and impact resistance, and BOPET film 6 has Good wear resistance, so the rest of the carbon steel plate 2 contacts. The BOPP film 7 is a biaxially oriented polypropylene film; the BOPET film 6 is a biaxially oriented polyester film, which is obtained by biaxially stretching and stretching PET resin af...

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Abstract

The invention discloses a stainless steel composite plate of a vacuum container and a preparation method thereof. The stainless steel composite plate comprises a carbon steel plate and a stainless steel plate, wherein the carbon steel plate is positioned on the outer side of the vacuum container; the stainless steel plate is positioned on the inner side of the vacuum container. Compared with the prior art, the scheme has the advantages that a mode of welding and combining carbon steel and the stainless steel plate is adopted, the stainless steel plate can be processed flatly and is suitable for being positioned on the inner side of the vacuum container, the carbon steel plate (the cost is lower than that of the stainless steel plate) is used for enhancing the strength of the whole composite plate, and the carbon steel plate is difficult to deform and is positioned on the outer side of the vacuum container. The stainless steel plate and the carbon steel plate are compounded, so that theproduction cost is reduced.

Description

technical field [0001] The invention relates to the field of steel plate compounding, in particular to a stainless steel compound plate for a vacuum vessel and a preparation method thereof. Background technique [0002] The inner surface of the vacuum container generally requires materials with a small outgassing rate and no rust, and the inner surface of the container needs to be polished; the material of the vacuum container requires high strength, good welding and processing performance, and corrosion resistance, so the vacuum container is generally made of austenitic stainless steel. . However, the size of the large vacuum container is large, the steel plate of the container is thick, the material consumption is large, and the austenitic stainless steel material is expensive, and the cost of the large vacuum container made of stainless steel is high. [0003] The cost of carbon steel is much lower than that of stainless steel, but if ordinary carbon steel is used, due t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K31/02B23K33/00B23K37/00
CPCB23K31/02B23K33/00B23K37/00
Inventor 闻建芳徐旭徐光明
Owner 杭州盈铭深冷真空工程有限公司
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