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Production method of continuous-hot-dipped aluminum-silicon-titanium-boron-coated alloy steel plate

A technology of alloy steel plate and hot-dip aluminum plating, applied in hot-dip plating process, metal material coating process, coating, etc., can solve problems such as unevenness and uneven surface of aluminum plated plate, and achieve convenient source and smooth surface , The effect of low manufacturing cost

Inactive Publication Date: 2012-04-11
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

These several compounds form various irregular alloys on the surface of the steel strip, making the surface of the aluminum plate uneven and uneven.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: The production method of a continuous hot-dip aluminum-silicon-titanium-boron alloy steel plate of the present invention adopts the following process steps: the composition ratio is calculated in parts by weight:

[0022] Take 90 parts of aluminum ingots, 10 parts of silicon ingots, 0.03 parts of copper ingots, and 0.03 parts of magnesium ingots in an induction heating furnace for heating and melting. Heating temperature: 680℃, melting time 18 days, aluminum, silicon, titanium, boron coating solution temperature It is: 680℃, ready to use; the base plate is cold-rolled steel plate, the width of the cold-rolled steel plate is 1000 mm, and the thickness is 2 mm.

[0023] 1. Take the cold-rolled steel plate and place it in the solution tank for chemical degreasing. Put 100 kg of water and 1 kg of solid alkali into the solution tank. The weight percentage of solid alkali in the aqueous alkali solution is : 1%, temperature of aqueous alkali solution: 70℃, degreasing ...

Embodiment 2

[0033] Embodiment 2: The production method of a continuous hot-dip aluminum-silicon-titanium-boron alloy steel plate of the present invention adopts the following process steps: the composition ratio is calculated in parts by weight:

[0034] Take 92 parts of aluminum ingots, 8 parts of silicon ingots, 0.1 parts of titanium ingots, and 0.03 parts of boron ingots to heat and melt in an induction heating furnace. Heating temperature: 700℃, melting time 12 days, aluminum, silicon, titanium, boron coating solution The temperature is: 700℃, ready to use; the base plate is cold-rolled steel plate, the width of the cold-rolled steel plate is 1250mm, and the thickness is 0.5mm.

[0035] 1. Take the cold-rolled steel plate and place it in the solution tank for chemical degreasing. Put 100 kg of water and 2 kg of solid alkali into the solution tank. The weight percentage of the solid alkali in the aqueous alkali solution is :2%, the temperature of the aqueous alkali solution is: 90℃, the deg...

Embodiment 3

[0045] Embodiment 3: The production method of a continuous hot-dip aluminum-silicon-titanium-boron alloy steel plate of the present invention adopts the following process steps: its composition ratio is calculated in parts by weight:

[0046] Take 91 parts of aluminum ingots, 9 parts of silicon ingots, 0.08 parts of titanium ingots, and 0.07 parts of boron ingots in an induction heating furnace for heating and melting. Heating temperature: 690℃, melting time 15 days, aluminum, silicon, titanium, and boron coating solution The temperature is: 690℃, ready to use; the substrate is cold-rolled steel plate, the width of the cold-rolled steel plate is 1150mm, and the thickness is 1mm.

[0047] 1. Take the cold-rolled steel plate and place it in the solution tank for chemical degreasing. Put 100 kg of water and 1.5 kg of solid alkali into the solution tank. The weight percentage of solid alkali in the aqueous alkali solution is :1.5%, temperature of aqueous alkali solution: 80℃, degreasin...

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Abstract

The invention relates to a production method of a continuous-hot-dip aluminum-silicon-titanium-boron-coated alloy steel plate and belongs to the technical field of steel belt plate coating composite materials. The production method comprises the following main steps: smelting an aluminum ingot, a silicon ingot, a titanium ingot and a boron ingot in an induction heating furnace to prepare an aluminum-silicon-titanium-boron coating solution; carrying out chemical degreasing and electrolytic degreasing on a cold-roll steel sheet and then dipping the aluminum-silicon-titanium-boron coating solution on the front and back surfaces of the cold-roll steel sheet; and leveling with an air knife, carrying out air cooling, finishing and withdrawing and straightening, and then passivating and drying to obtain a finished product. According to the invention, the production process is simple, raw materials are easy to obtain, production cost is low; and by using the production method of the invention, the irregular alloy of an aluminum coated sheet can be effectively improved, and the surface of the aluminum coated sheet is smooth and flat.

Description

Technical field [0001] The invention relates to a production method of continuous hot-dip aluminum-silicon-titanium-boron alloy steel plate, which belongs to the technical field of steel strip plate coating composite materials. Background technique [0002] In the continuous hot-dip aluminizing process produced by Sendzimir method, the temperature of the aluminizing pot reaches 680-700℃, the aluminum content is 90-92% by weight, and the silicon content is 8-10% by weight. The surface of the aluminum plate is smooth and flat without spangles. But after continuous production, due to the dissolution of iron in the steel strip in the aluminum pot, it reacts with the silicon and aluminum in the aluminum pot to form FeAl 3 , Fe 2 (AlSi) 5 , Fe 2 Al 5 . These compounds form various irregular alloys on the surface of the steel strip, which makes the surface of the aluminized plate uneven and uneven. Summary of the invention [0003] The purpose of the present invention is to overcome th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C2/12C23C2/40C23C2/02C23C2/26
Inventor 谢举霞周元庆刘岗
Owner 无锡银荣板业有限公司