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A method for producing large-width and large-area stainless steel composite panels

A production method, stainless steel technology, applied in chemical instruments and methods, layered products, metal layered products, etc., can solve the problems of high investment and production costs, difficult product quality control, low production efficiency, etc., to improve production efficiency. , The effect of reducing welding workload and high reliability

Active Publication Date: 2019-03-08
嘉峪关天源新材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a production method of large-width and large-area stainless steel clad plate to solve the problems of complex process, difficult control of product quality, low production efficiency and high investment and production cost due to the need of special rolling mill in the existing production method

Method used

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  • A method for producing large-width and large-area stainless steel composite panels
  • A method for producing large-width and large-area stainless steel composite panels
  • A method for producing large-width and large-area stainless steel composite panels

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Step 1. Blank design:

[0044] (1) According to the total thickness of the finished stainless steel clad plate, the thickness of the finished clad layer, the thickness of the finished base layer, the thickness ratio of the finished base clad layer, and according to the deformation law of the clad plate and the base plate during rolling, the total reduction rate is calculated at 80 %, the total thickness of the composite slab and the thickness of the composite slab and the base plate can meet the design requirements, and determine the thickness of the stainless steel double plate and carbon steel base plate and the total thickness of the composite slab for explosive billet making;

[0045] The calculation formula of the total thickness H of the stainless steel clad slab is: H=h / (1- );

[0046] Stainless steel cladding thickness H f The calculation formula is: H f = h f / (1- ) / k;

[0047] Carbon steel substrate thickness H j The calculation formula is: H j = H-h...

Embodiment 2

[0086] Step 1. Blank design:

[0087] (1) According to the total thickness of the finished stainless steel clad plate, the thickness of the finished clad layer, the thickness of the finished base layer, and the thickness ratio of the base clad layer, according to the deformation law of the clad plate and the base plate during rolling, the total reduction rate is calculated at 90% When the thickness of double plate and base plate can meet the design requirements, determine the thickness of stainless steel double plate and carbon steel base plate for explosive billet making;

[0088] The calculation formula of the total thickness H of the stainless steel clad slab is: H=h / (1- );

[0089] Stainless steel cladding thickness H f The calculation formula is: H f = h f / (1- ) / k;

[0090] Carbon steel substrate thickness H j The calculation formula is: H j = H-h f / (1- ) / k;

[0091] In the formula: h is the total thickness of the finished stainless steel clad plate;

[0...

Embodiment 3

[0129] Step 1. Blank design:

[0130] 304 stainless steel is selected as the double plate, and the explosion-welded slab of Q235B is selected as the substrate. The thickness of the 304 stainless steel is 20mm, the thickness of the Q235B steel plate is 100mm, and the total thickness is 120mm; the width of the stainless steel double plate is 1380mm, and the length is 2580mm; the width of the carbon steel substrate is 1340mm, and the length is 2540mm;

[0131] Step two, slab surface cleaning:

[0132] Grinding the two composite surfaces of the stainless steel cladding plate and the carbon steel substrate after billeting to remove rust, oil and other dirt on the surface of the steel plate;

[0133] Step 3. Explosive billet making:

[0134] Such as figure 1 As shown, the edge triangular ladder distribution method and the center detonation method are used for explosive billet making: an explosive layer 2 is set on the stainless steel doubler plate 3, and the explosive layer 2 use...

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Abstract

The invention discloses a production method for a large-width large-area stainless steel composite plate and belongs to the technical field of bi-metal composite plate rolling. The problems that an existing production method is complicated in process, the product quality is difficult to control, the production efficiency is low, and the investment cost and the production cost are high due to the fact that a special rolling mill is needed are solved. The production method comprises the steps of blank assembling design, blank surface cleaning, explosive blank making, flaw detection, repair welding grinding, edge defect removing, blank heating, descaling, rolling, cooling, straightening and finishing. According to the production method for the large-width large-area stainless steel composite plate, the limitation that the large-width stainless steel composite plate cannot be produced through a direct explosive welding method is overcome; the stainless steel composite plate with the width larger than 1600 mm is produced; the splice welding grinding process before explosive welding is omitted; the blank preparation time of explosive welding is shortened; the follow-up welding workload is reduced; the production efficiency is improved; and the stainless steel composite plate produced through the production method is high in bonding interface strength, safe and high in reliability.

Description

technical field [0001] The invention belongs to the technical field of bimetal composite plate rolling, and in particular relates to a production method of a large-width and large-area stainless steel composite plate. Background technique [0002] At present, there are three main production methods of stainless steel clad steel plates, one is the direct explosive welding method, the other is the rolling method, and the other is the explosive rolling method. The direct explosive welding method is to place stainless steel and ordinary carbon steel on a soft sand bed, and then lay an appropriate amount of explosives to explode and combine. This method can generally only produce stainless steel with a thickness of 2-12mm (width below 1600mm). Composite steel plate. In order to produce clad stainless steel clad panels with a thickness of 2-4mm and a width greater than 1600mm, the only way is to increase the width of the clad stainless steel clad plates by tailor welding, and the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B15/01B23K101/18
CPCB23K20/08B23K20/24B23K2101/18
Inventor 邵建勇李具仓马艳丽陈立章王军宏孙爱楠白江虎王群薛海军陈磊
Owner 嘉峪关天源新材料有限责任公司
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