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Method for preparing titanium steel cladding board with thin coating

A composite board and thin cladding technology, which is applied in temperature control, metal rolling, manufacturing tools, etc., can solve problems such as warping of composite boards and affecting the shape of composite boards, achieve good board shape, avoid buckling, and save The effect of investment costs

Inactive Publication Date: 2015-02-25
NANJING IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is feasible for the rolling of thick-gauge titanium-steel clad plates, but for thin-gauge clad plates, increasing the number of descaling passes will cause clad plate warping, which will affect the shape of the final clad plate

Method used

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  • Method for preparing titanium steel cladding board with thin coating
  • Method for preparing titanium steel cladding board with thin coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The cladding layer is TA1, the base layer is Q235B titanium steel explosive composite billet, wherein the thickness of the titanium layer of TA1 is 3mm, the thickness of Q235B steel plate is 30mm, and the total thickness is 33mm;

[0025] Perform surface treatment on the selected TA1 / Q235B billet, remove the sediment and other impurities on the upper and lower surfaces of the composite billet, and clean the burrs around the composite billet at the same time;

[0026] Put the cleaned TA1 / Q235B composite billet in a walking heating furnace for heating, keep the titanium layer at the top and the steel plate at the bottom during heating, and the burners opened during the heating process are all burners on the lower side of the furnace. The steel loaded at the end of the furnace enters the preheating section, the temperature of the preheating section is 450~550°C, and the preheating time is 50 minutes; then enters the heating section, the temperature of the heating section is...

Embodiment 2

[0031] The cladding layer is TA2, the base layer is Q235B titanium steel explosive composite billet, wherein the thickness of the titanium layer of TA2 is 3mm, the thickness of the Q235B steel plate is 45mm, and the total thickness is 48mm;

[0032] Perform surface treatment on the selected TA2 / Q235B blank, remove the sediment and other impurities on the upper and lower surfaces of the composite blank, and clean the burrs around the composite blank;

[0033] Put the cleaned TA2 / Q235B composite billet in a walking heating furnace for heating, keep the titanium layer on the top and the steel plate on the bottom during heating, and the burners opened during the heating process are all burners on the lower side of the furnace. The steel loaded at the end of the furnace enters the preheating section. The temperature of the preheating section is controlled at 450~550°C, and the preheating time is 55 minutes. Then it enters the heating section. The temperature of the heating section i...

Embodiment 3

[0038] The cladding layer is TA2, the base layer is Q345B titanium steel explosive composite billet, wherein the thickness of the titanium layer of TA2 is 6mm, the thickness of Q345B steel plate is 60mm, and the total thickness is 66mm;

[0039] Perform surface treatment on the selected TA2 / Q345B blank, remove the sediment and other impurities on the upper and lower surfaces of the composite blank, and clean the burrs around the composite blank;

[0040] Put the cleaned TA2 / Q345B composite billet in the walking heating furnace for heating, keep the titanium layer on the top and the steel plate on the bottom when heating, and the burners opened during the heating process are all the burners on the lower side of the furnace. The steel loaded at the end of the furnace enters the preheating section, the temperature of the preheating section is 450~550°C, and the preheating time is 65 minutes; then it enters the heating section, the temperature of the heating section is controlled a...

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Abstract

The invention discloses a method for preparing a titanium steel cladding board with a thin coating. The method comprises the steps that (1) an explosive cladding blank with a titanium plate as the upper layer and a steel plate as the lower layer is selected; (2) surfacing cleaning is conducted on the cladding blank; (3)the cleaned cladding blank is put in a stepping type heating furnace to be heated, and steel is loaded at the furnace tail of the stepping type heating furnace; (4) the evenly-heated cladding blank penetrates through a conveying roller table to a rolling mill to be descaled and rolled, the press-down rate of a first gate of rolling is controlled to be 20% or higher, the press-down rate of the rolling of the last gate is controlled to be 10% or lower, and the total press-down rate is 60%-90%. Air cooling is conducted on the cladding board after rolling is completed, and then the rolled cladding board is straightened. According to the method for preparing the titanium steel cladding board with the thin coating, under the premises that other auxiliary devices are not added, the descaling gates and the press-down amount in the rolling process are effectively controlled by using existing equipment of a moderate thickness board production line and by adopting the stepping type heating furnace for heating, and it is ensured that the rolled titanium steel cladding board is good in shape and good in comprehensive performance.

Description

technical field [0001] The invention relates to a method for preparing a composite plate, in particular to a method for preparing a titanium-steel composite plate with a thin coating thickness, and belongs to the technical field of bimetal composite rolling. Background technique [0002] As a material with high corrosion resistance and high specific strength, titanium has been widely used in various fields, and the titanium-steel composite plate with titanium as the cladding and steel as the base layer has superior performance, low price, and extremely High cost performance, widely used in petroleum, chemical, metallurgy, electric power and other industries. At present, the production methods of titanium-steel clad plates mainly include explosive cladding and rolling cladding. However, due to the limitation of the technology, the size of the clad plate produced by the explosive cladding method is very limited, especially for the thin cladding titanium steel clad plate with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/38B21B45/08
CPCB21B1/38B21B37/74B21B45/08B21B2001/383B21B2001/386
Inventor 曾周燏江姗党军全才
Owner NANJING IRON & STEEL CO LTD
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