Bimetal composite plate and preparation method thereof

A composite board and bimetal technology, applied in the field of bimetal composite board and its preparation, can solve the problems of poor quality of bimetal composite board, difficulty in large-scale production, low yield, etc., to increase uniformity, enhance bonding strength and Excellent quality and comprehensive performance

Inactive Publication Date: 2021-10-22
青岛力晨新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Most of the existing methods for preparing bimetallic composite panels have various problems such as complicated steps, high cost, poor quality of bimetallic composite panels, low yield, difficulty in large-scale production, and serious environmental pollution.

Method used

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  • Bimetal composite plate and preparation method thereof

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preparation example Construction

[0029] Such as figure 1 Shown, the preparation method of described a kind of bimetal composite board, it comprises the following steps:

[0030] Pretreatment of the base steel plate;

[0031] Smelting the target carbon steel;

[0032] Preheat the pretreated base steel plate to 900-1000°C, then put it into a mold, and under the protection of an inert gas, cast molten carbon steel into the mold, and combine the molten carbon steel with the base steel plate to form a composite plate rough billet ;

[0033] Apply a pressure of 0.5 to 2 MPa to the rough composite slab and keep the pressure for 2 to 5 hours to form the as-cast composite slab;

[0034] The as-cast composite slab is cold-rolled and / or hot-rolled to obtain a bimetallic composite slab.

[0035] Further, the pretreatment of the base steel plate includes the following steps:

[0036] S1: Soak the base steel plate in sodium hydroxide solution and hydrochloric acid solution for 0.5-1 hour respectively, rinse with deion...

Embodiment 1

[0051] A method for preparing a bimetal composite plate, comprising the following steps:

[0052] Step 1: Pretreatment of the 304 steel plate, the pretreatment includes the following steps:

[0053] S1: Soak the 304 steel plate in the sodium hydroxide solution with a concentration of 0.1mol / L and the hydrochloric acid solution with a concentration of 0.1mol / L for 1 hour respectively, then rinse it with deionized water for 4 times, and then dry the water on the surface of the base steel plate;

[0054]S2: Put the 304 steel plate treated with SS1 into nickel ammonium sulfate at a temperature of 550°C, keep it warm for 45 minutes, and grow a binder film coating with a thickness of about 100nm on the surface of the base steel plate in situ;

[0055] Step 2: Smelting the Q235 carbon steel to make it into molten steel, and adjusting the temperature of the molten steel to 1600°C; the target carbon steel smelting includes the following steps:

[0056] 1): Take Q235 carbon steel and h...

Embodiment 2

[0065] A method for preparing a bimetal composite plate, comprising the following steps:

[0066] Step 1: Pretreatment of the 304 steel plate, the pretreatment includes the following steps:

[0067] S1: Soak the 304 steel plate in the sodium hydroxide solution with a concentration of 0.1mol / L and the hydrochloric acid solution with a concentration of 0.1mol / L for 1 hour respectively, then rinse with deionized water twice, and then dry the water on the surface of the base steel plate;

[0068] S2: Put the 304 steel plate treated with SS1 into nickel ammonium sulfate at a temperature of 650°C, keep it warm for 45 minutes, and grow a binder film coating with a thickness of about 150nm on the surface of the base steel plate in situ;

[0069] Step 2: Smelting the Q235 carbon steel to make it into molten steel, and adjusting the temperature of the molten steel to 1700°C; the target carbon steel smelting includes the following steps:

[0070] 1): Take Q235 carbon steel and heat it t...

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Abstract

The invention belongs to the technical field of bimetal composite plate preparation, and particularly relates to a bimetal composite plate and a preparation method thereof. According to the bimetal composite plate, by adopting a solid-liquid composite matched die-casting process, a bimetal composite plate blank with metallurgical composite strength is obtained by casting liquid carbon steel and solid stainless steel/nickel-based alloy for metallurgical composite, and then the composite plate blank is subjected to die-casting forming, so that the bonding quality and the wall thickness of the bimetal metallurgical composite plate blank meet preset requirements; and finally, a finished composite plate is obtained through hot rolling and cold rolling or cold rolling. According to the preparation method, the forging composite plate blank is directly prepared with the cooperation of casting forming and die casting processes, the quality of the composite plate blank is better than that of an as-cast composite plate blank, the process is simple, efficiency is high, and time and labor are saved.

Description

technical field [0001] The invention belongs to the technical field of bimetal composite board preparation, and in particular relates to a bimetal composite board and a preparation method thereof. Background technique [0002] Bimetal composite panel refers to a new type of composite material prepared by combining two metals with different properties, which combines the functionality of the clad material and the structural performance of the base material. Stainless steel / nickel-based alloy bimetal clad plate has both the corrosion resistance of stainless steel / nickel-based alloy and the high strength of carbon steel. It is a perfect substitute for expensive stainless steel / nickel-based alloy and can greatly save expensive stainless steel. / nickel-based alloy dosage, significantly reducing production costs. [0003] The current stainless steel / nickel-based alloy clad plate process is mainly divided into mechanical clad method and metallurgical clad method. The mechanical c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D19/08B22D19/02B22D27/09
CPCB22D19/08B22D19/02B22D27/09
Inventor 郝云龙王安国郑震甄云璞
Owner 青岛力晨新材料科技有限公司
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