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Production method of thermo-technical cold composite coiled material of ferritic stainless steel and brass for ships

A production method, stainless steel technology, applied in the direction of metal rolling, can solve the problems of uneven thickness of the composite layer, low bonding strength, easy rusting of the end steel layer, etc., to achieve a wide range of raw material sources, simple manufacturing process, and low production cost Effect

Active Publication Date: 2013-01-09
无锡银荣板业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the 1950s, the cold-rolling composite method has been used in the industrial production of composite coils, with precise dimensions and high efficiency, but the bonding strength is low and unstable, and the steel layer at the end of the composite material is prone to rust
To sum up, in the continuous production process of the copper-steel composite material produced by the traditional bimetal composite panel production method, there are problems such as inflexible process, easy rusting of the end steel layer, and uneven thickness of the composite layer, which cannot meet the current requirements. market customer needs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: A kind of production method of ferritic stainless steel and brass cold composite coil for marine thermal engineering of the present invention adopts the following process steps:

[0025] The substrate is made of 430 cold-rolled stainless steel coil with a width of 600mm and a thickness of 2.0mm; the composite layer is made of H62 brass coil with a width of 600mm and a thickness of 0.2mm; the weight of the stainless steel coil is 5000Kg, and the single-layer H62 copper coil Material weight is 500Kg;

[0026] 1. Raw material treatment: Take 430 cold-rolled stainless steel coils and H62 brass coils and put them on the cleaning and degreasing unit for chemical degreasing treatment. Put 1000 kg of water and 200 kg of degreasing agent into the solution tank. Degreasing agent solution , the degreasing solution uses NaOH solution with a mass concentration of 20%, and the solution temperature is controlled at 80°C; the degreasing time is subject to the bright surfa...

Embodiment 2

[0033] Embodiment two: a kind of production method of ferritic stainless steel and brass cold composite coil for marine thermal engineering of the present invention adopts the following process steps:

[0034] The substrate is made of 430 cold-rolled stainless steel coil with a width of 580mm and a thickness of 2.0mm; the composite layer is made of H62 brass coil with a width of 580mm and a thickness of 0.2mm; the weight of the stainless steel coil is 5000Kg, and the single-layer copper coil Material weight is 500Kg;

[0035] 1. Raw material treatment: Take 430 cold-rolled stainless steel coils and H62 brass coils and put them on the cleaning and degreasing unit for chemical degreasing treatment. Put 1000 kg of water and 180 kg of degreasing agent into the solution tank. Degreasing agent solution , the degreasing solution uses NaOH solution with a mass concentration of 18%, and the solution temperature is controlled at 70°C; the degreasing time is subject to the bright surface...

Embodiment 3

[0042] Embodiment three: a kind of production method of ferritic stainless steel and brass cold composite material for marine thermal engineering of the present invention adopts the following process steps:

[0043] The substrate is made of 430 cold-rolled stainless steel coil with a width of 550mm and a thickness of 2.0mm; the composite layer is made of H62 brass coil with a width of 550mm and a thickness of 0.2mm; the weight of the stainless steel coil is 5000Kg, and the single-layer copper coil Material weight is 500Kg;

[0044] 1. Raw material treatment: Take 430 cold-rolled stainless steel coils and H62 brass coils and put them on the cleaning and degreasing unit for chemical degreasing treatment. Put 1000 kg of water and 150 kg of degreasing agent into the solution tank. Degreasing agent solution , the degreasing solution uses NaOH solution with a mass concentration of 15%, and the solution temperature is controlled at 65°C; the degreasing time is subject to the bright s...

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Abstract

The invention relates to a production method of a thermo-technical cold composite coiled material of ferritic stainless steel and brass for ships. The production method comprises the following process steps of: (1) carrying out surface treatment on raw materials, wherein the surfaces of a 430 cold rolled stainless steel coiled material and a brass coiled material are subjected to oil removing and decontamination treatment by using a washing degreasing method; (2) rolling compositely, wherein the two metal materials, namely, the 430 cold rolled stainless steel coiled material and the brass coiled material, are synchronously and compositely rolled into a composite coiled material of stainless steel and brass; (3) flattening the composite coiled material of stainless steel and brass subjected to diffusion annealing by using a flattening machine; (4) carrying out stretch-bending straightening treatment on the flattened composite coiled material of stainless steel and brass; and (5) determining the dimensions and splitting the composite coiled material of stainless steel and brass subjected to the stretch-bending straightening treatment into strips so as to form the thermo-technical cold composite coiled material of ferritic stainless steel and brass for ships. The thermo-technical cold composite coiled material has an attractive and bright surface of the brass material and good extensibility, thermal conductivity, corrosion resistance and abrasion resistance, and also has a good mechanical machining property of the ferritic stainless steel.

Description

technical field [0001] The invention relates to a production method of ferritic stainless steel and brass cold composite coils for ship thermal engineering, and belongs to the technical field of stainless steel strip and copper composite materials. Background technique [0002] Ferritic stainless steel has the characteristics of large thermal conductivity, small expansion coefficient, good oxidation resistance, and excellent stress corrosion resistance. It is a commonly used general-purpose stainless steel with better thermal conductivity and smaller thermal expansion coefficient than austenite. , heat fatigue resistance, adding stabilized element titanium, good mechanical properties of weld parts. It is mostly used in the manufacture of parts resistant to atmospheric, water vapor, water and oxidative acid corrosion, and is widely used in the fields of architectural decoration, fuel burner parts, household appliances, and home appliance parts. [0003] The common production...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/38
Inventor 谢举霞刘岗周洪岳邓炳如
Owner 无锡银荣板业有限公司
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