阅读说明：本技术 一种短流程制备金属复合板的生产装置和方法 (Production device and method for preparing metal composite plate in short process ) 是由 张庆丰 焦四海 于 2018-06-29 设计创作，主要内容包括：本发明的一种短流程制备金属复合板的生产装置和方法将用于单一材质生产的连铸、轧制、热处理手段与复合板带的连续、规模化生产很好的结合,大幅度提高了复合板生产效率。本发明可进行不同厚度规格的单面或双面复合板生产,基层或复层材料可选择范围宽泛,包括碳钢、不锈钢、特种合金、钛、铜等。本发明实现了复合板连铸连轧,节约能耗,降低成本。(The production device and the method for preparing the metal composite plate in the short process, disclosed by the invention, well combine the continuous casting, rolling and heat treatment means for producing single materials with the continuous and large-scale production of the composite plate strip, so that the production efficiency of the composite plate is greatly improved. The invention can be used for producing single-sided or double-sided composite boards with different thickness specifications, and the selection range of the base layer or the composite layer materials is wide, including carbon steel, stainless steel, special alloy, titanium, copper and the like. The invention realizes the continuous casting and rolling of the composite plate, saves energy consumption and reduces cost.)

1. The utility model provides a short flow preparation metal clad sheet's apparatus for producing, includes the base metal supply apparatus who comprises decoiler (1), pinch roll (2), shot-blasting machine (3), welding equipment (4), welding pinch roll (5), induction heating device (6), its characterized in that:

the base metal supply equipment comprises two parts in total, two base metal plate strips (A) can be conveyed to the lower part of a distributor (7) for conveying the base metal plate strips (A) to pouring molten steel through uncoilers (1), pinch rolls (2), shot blasting machines (3), welding equipment (4), welding pinch rolls (5) and induction heating devices (6) of different lines, 2 crystallization cooling rolls (8) are arranged at the positions, side sealing plates are arranged on the crystallization cooling rolls, the distributor is used for pouring the molten steel between the crystallization cooling rolls to form a metal solution pool (B), the base metal plate strips are immersed into the metal solution pool along the crystallization cooling rolls and then rolled into a composite plate blank (C) by crystallization cooling rolls, and then are conveyed into a secondary cooling leveling roll plate strip (9) arranged below the crystallization cooling rolls, and then conveyed into a rolling mill pinch roll (10) after leveling, and then conveyed into a rolling mill (11) to form a composite plate blank (D) after rolling, finally, the steel wire passes through an online cooling device (12) and a straightening machine (13) in sequence, is cut to length by a length-fixing shear (14) or is coiled by a coiling machine (15).

2. The production method of the short-process metal composite plate is based on the production device of the short-process metal composite plate according to claim 1, and comprises the following specific steps:

1) uncoiling a base metal plate strip (A) with the thickness of 2-25 mm through an uncoiler (1), directly conveying the base metal plate strip with the thickness of 26-100 mm to an impeller head (3) through a pinch roll (2) for surface cleaning, and welding the front end and the rear end of the base metal plate strip through welding equipment (4) after the impeller head is shot, so that continuous plate supply of the base metal plate strip is realized;

2) the welded base metal plate strip (A) is sent into an induction heating device (6) through a welding pinch roll (5) to be heated, nitrogen or argon is introduced into the induction heating device for protection, the heating temperature is 100-1200 ℃, the heating speed is 1-50 ℃/s according to different thicknesses, and the base metal plate strip is made of carbon steel, stainless steel, special alloy, titanium, copper and other metals, so that the base metal plate strip and the multi-layer molten metal in the subsequent steps are easy to combine in a heating purpose, and the surface metal melting of the base metal is promoted;

3) injecting base metal melt contained in a flow distributor (7) between 2 crystallization cooling rollers (8) to form a metal solution pool (B), blowing argon on the surface of the metal solution pool to reduce the oxidation of the metal melt, wherein the temperature of the metal melt is 30-150 ℃ higher than the melting point of the base metal plate strip, the base metal can be carbon steel, stainless steel, special alloy, titanium, copper and the like, the base metal plate strip (A) heated in the step 2) enters the metal solution pool between the crystallization cooling rollers along the crystallization cooling rollers at the speed of 0.1-30 m/min, the high-temperature metal solution is contacted with the surface of the base metal plate strip with relatively low temperature to slightly melt the surface of the base metal, and meanwhile, the metal solution as the base is solidified on the surface of the base metal plate strip with relatively low temperature to realize the melting compounding of the base metal plate strip and the base metal plate strip, and is gradually solidified under the combined action of the base metal plate strip, the single base plate strip enters the metal solution pool from the surface of one crystallization cooling roller to produce a single-sided composite plate blank, and the two base plate strips respectively enter the metal solution pool from the surfaces of the two crystallization cooling rollers to produce a double-sided composite plate blank;

4) the composite plate blank (C) enters a secondary cooling leveling roller (9) after coming out of the crystallization cooling roller, the composite plate blank is cooled again by the secondary cooling leveling roller and the surface is deformed and flattened, wherein cooling water is introduced into the secondary cooling leveling roller, and the composite plate blank which is not completely solidified is further solidified in the step;

5) sending the further cooled and flattened composite plate blank into a pinch roll (10) of a rolling mill, then sending the composite plate blank into the rolling mill (11) to roll the composite plate blank into composite plate strips (D) with different thickness specifications of 0.5-100 mm, further compressing and deforming a composite interface at high temperature in the rolling process, recovering and recrystallizing a composite interface tissue, and promoting secondary recombination of the interface by large crystal grain growth and element diffusion at high temperature;

6) the rolled composite plate strip (D) can be subjected to online cooling by an online cooling device (12) according to the product performance requirement, the online cooling speed is 1-60 ℃/s according to the product thickness, and the final cooling temperature is 50-600 ℃;

7) and the composite plate strip (D) after on-line cooling enters a straightening machine (13) for straightening, and is cut to length by a length-fixing shear (14) or is coiled by a coiling machine (15) according to actual requirements after straightening.

Technical Field

The invention relates to the field of ferrous metallurgy production, in particular to a production device and a method for preparing a metal composite plate in a short process, which can be used for producing metal composite plate products with different material combinations.

Background

Along with the development of modern science and technology and national economy, users have more and more rigorous requirements on the performance of materials, a single metal material is difficult to meet the performance requirements in various aspects in the actual use process, and a metal composite material with both functionality and structure is produced at the same time, plays an important role in meeting the personalized requirements of users, and is more and more concerned and used by the broad masses of users. The following methods and apparatuses are more common for manufacturing composite sheet strips:

1. explosion cladding: cleaning the contact surfaces of two different metal materials, adding explosives into the interfaces, and welding the two metal materials by utilizing the instantaneous high temperature generated by explosion, wherein the combination is not sufficient, the composite strength is lower, and the method is suitable for single-piece and small-batch production;

2. rolling and compounding: the composite surface of stainless steel and carbon steel is cleaned, the periphery is vacuumized and welded after the composite surface is aligned, and then the composite manufacturing method is completed through heating and rolling, so that the composite material is fully combined, has high composite strength and low production efficiency, and is suitable for single-piece and small-batch production;

3. centrifugal casting compounding: the carbon steel and the stainless steel molten steel are sequentially added into a centrifuge, annular composite plates, pipes and the like can be sequentially considered through the carbon steel and the stainless steel molten steel, and then the processes of straightening, heating, rolling and the like are carried out.

The prior ideal composite process is a rolling composite method, the interface of the produced composite plate realizes complete metallurgical bonding, the bonding strength is high, the product performance is excellent, but the assembly efficiency is low, the assembly process comprises a plurality of working procedures, the continuous, automatic and large-scale production is difficult to realize, and the cost is high. In recent years, several processes and methods for continuously producing composite plates such as continuous casting and continuous rolling of composite plates, thin strip continuous casting and the like have appeared, for example, patent CN1714957A introduces a composite plate, strip production method and equipment of different metal materials, by using 2-3 carbon steel or stainless steel water crystallizers to work simultaneously on the same continuous casting machine, the continuous casting and continuous rolling of single-side composite plates and strips of different metal materials are realized, the crystallizer is composed of four steel strips which move synchronously and circularly up and down and left and right, and the form of the former crystallizer is changed. The composite layer and the base layer metal are both formed by solidifying liquid metal in the crystallizer.

Patent CN101780532A describes a continuous casting method for liquid phase composite plate blank, which comprises injecting base layer molten metal and multiple layer molten metal into roller type crystallizer molten pool formed by crystallization cooling roller and side sealing plate, wherein the molten pool is divided into base layer molten pool and multiple layer molten pool by middle partition plate, and the composite plate blank formed in the crystallizer is formed after being straightened and sized. The defects that the clad layer and the base layer are both formed by simultaneously solidifying molten steel, the control difficulty of the joint surface is high, and the two molten steels are not mixed and are not supercooled and combined.

Patent CN104249135A describes a method for preparing a double-roll thin strip of a composite plate strip, which is to send an intermediate plate strip into a molten pool of a double-roll thin strip continuous casting, so that molten metal is rapidly solidified under the cooling action of a crystallization cooling roll and the intermediate plate strip to form a single-sided or double-sided composite plate strip; similarly, patent CN103495618A describes a casting-rolling composite production apparatus and method for metal composite plate, which is to send the mother plate to be composite into the molten pool of the strip caster, the metal liquid to be composite in the molten pool is solidified on the surface of the mother plate, and after leaving the crystallizer, the mother plate is cooled, leveled and rolled to obtain the composite plate strip. Both of the two methods are based on thin-strip continuous casting technology, the prepared product is mainly thin-specification strip materials, and the solidified multiple layers have limited thickness, so that the method is not suitable for preparing thick-specification multiple-layer composite strips.

Patent CN102039309A describes a method for continuously casting and rolling thin strip with a double-roller double-strip composite structure, in which two mother strips surround a crystallization cooling roller, the crystallization cooling roller and the mother strips form a molten pool, a metal solution in the molten pool forms a composite casting strip together with the two mother strips after solidification, and the composite strip is formed after rolling by a rolling mill. In the method, the multilayer metal is a steel belt, and the base layer is formed by solidifying molten steel.

Patent CN105215307A describes a process and an apparatus for producing a double-layer composite board, which is a method for producing a composite board by sequentially solidifying different materials through two tundishes and two crystallizers. And (3) feeding the casting blank solidified in the first crystallizer into a second crystallizer to enable a second material to adhere to the surface of the casting blank to be solidified, and producing the single-sided composite board through the working procedures of secondary cooling, rolling and the like.

Patent CN1141962A describes a continuous production method of reverse solidification composite plate strip, which is characterized in that a mother strip is uncoiled, descaled and passivated, then preheated at 200-1000 ℃, and then molten metal entering a crystallization tank is subjected to continuous thermal compounding.

The above patents are all new technologies developed for improving the production efficiency of composite boards and realizing continuous production, and each of them has some disadvantages.

Disclosure of Invention

The invention provides a production device and a production method for preparing a metal composite plate in a short process, which can improve the production efficiency of the composite plate and reduce the production cost.

The invention relates to a production device and a method for preparing a metal composite plate by a short process, which comprises the following steps:

the utility model provides a short flow preparation metal clad sheet's apparatus for producing, includes the base metal supply apparatus who comprises decoiler, pinch roll, shot-blasting machine, welding equipment, welding pinch roll, induction heating device which characterized in that:

the base material supply equipment comprises two parts in total, two base material plate strips can be conveyed to the lower part of a liquid distributor for conveying the base material plate strips to pouring molten steel through an uncoiler, a pinch roll, a shot blasting machine, welding equipment, a welding pinch roll and an induction heating device of different lines, 2 crystallization cooling rolls are arranged at the positions, side sealing plates are arranged on the crystallization cooling rolls, the liquid distributor pours the molten steel between the crystallization cooling rolls to form a metal solution pool, the base material plate strips are immersed into the metal solution pool along the crystallization cooling rolls and then are rolled into a composite plate blank by crystallization cooling rolls, then the composite plate blank is conveyed into a secondary cooling leveling roll arranged below the crystallization cooling rolls and then is conveyed into a pinch roll of a rolling mill, and then the composite plate strip is rolled into the rolling mill to form the composite plate strip, and finally the composite plate strip is cut to a fixed length through the online cooling device and the leveling machine or is.

A production method for preparing a metal composite plate in a short process is based on the production device for preparing the metal composite plate in the short process, and comprises the following specific steps:

1) uncoiling a base metal plate strip with the thickness of 2-25 mm by an uncoiler, directly conveying the base metal plate strip with the thickness of 26-100 mm to an impeller blasting machine through a pinch roll for surface cleaning, and welding the front end and the rear end of the base metal plate strip by the shot blasting equipment to realize continuous plate supply of the base metal plate strip;

2) the welded base metal plate strip is sent into an induction heating device through a welding pinch roll to be heated, nitrogen or argon is introduced into the induction heating device for protection, the heating temperature is 100-1200 ℃, the heating speed is 1-50 ℃/s according to different thicknesses, and the base metal plate strip is made of carbon steel, stainless steel, special alloy, titanium, copper and other metals, so that the base metal plate strip and the multi-layer metal melt in the subsequent steps can be combined more easily, and the metal melting on the surface of the base metal is promoted;

3) injecting base metal melt contained in a flow distributor between 2 crystallization cooling rollers to form a metal solution pool, blowing argon on the surface of the metal solution pool to reduce the oxidation of the metal melt, wherein the temperature of the metal melt is 30-150 ℃ higher than the melting point of a base metal plate strip, the base metal can be carbon steel, stainless steel, special alloy, titanium, copper and the like, the base metal plate strip heated in the step 2) enters the metal solution pool between the crystallization cooling rollers along the crystallization cooling rollers at the speed of 0.1-30 m/min, the high-temperature metal solution is in contact with the surface of the base metal plate strip at the relatively low temperature to slightly melt the surface of the base metal, and meanwhile, the metal solution serving as the base layer is solidified on the surface of the base metal plate strip at the relatively low temperature to realize the melt compounding of the base layer and the base metal plate strip, and the metal solution is gradually solidified under the combined action, the single base plate strip enters the metal solution pool from the surface of one crystallization cooling roller to produce a single-sided composite plate blank, and the two base plate strips respectively enter the metal solution pool from the surfaces of the two crystallization cooling rollers to produce a double-sided composite plate blank;

4) the composite plate blank is discharged from the crystallization cooling roller and enters a secondary cooling leveling roller, the composite plate blank is cooled again by the secondary cooling leveling roller and the surface is deformed and flattened, wherein cooling water is introduced into the secondary cooling leveling roller, and the composite plate blank which is not completely solidified is further solidified in the step;

5) sending the further cooled and leveled composite plate blank into a pinch roll of a rolling mill, then rolling the composite plate blank into composite plate strips with different thickness specifications of 0.5-100 mm in the rolling mill, further compressing and deforming a composite interface at high temperature in the rolling process, recovering and recrystallizing a composite interface tissue, and promoting secondary recombination of the interface by grain growth and element diffusion at high temperature;

6) the rolled composite plate strip can be subjected to online cooling by an online cooling device according to the product performance requirement, the online cooling speed is 1-60 ℃/s according to the product thickness, and the final cooling temperature is 50-600 ℃;

7) and (4) straightening the composite plate strip after on-line cooling in a straightening machine, and cutting the composite plate strip to a fixed length by using a fixed length shear or coiling the composite plate strip by using a coiling machine according to actual needs after straightening.

The production device and the method for preparing the metal composite plate by using the short process have the following beneficial effects that:

1) the production device and the method for preparing the metal composite plate in the short process well combine the continuous casting, rolling and heat treatment means for producing single materials with the continuous and large-scale production of the composite plate strip, thereby greatly improving the production efficiency of the composite plate;

2) the production device and the method for preparing the metal composite plate in the short process can be used for producing single-sided or double-sided composite plates with different thickness specifications, and the base layer or the composite layer can be made of carbon steel, stainless steel, special alloy, titanium, copper and the like in a wide selection range;

3) the production device and the method for preparing the metal composite plate in the short process realize continuous casting and rolling of the composite plate, save energy consumption and reduce cost.

Drawings

Fig. 1 is a schematic structural diagram of a device part of a production device and a method for preparing a metal composite plate in a short process.

In the figure: 1-uncoiler, 2-pinch roll, 3-shot blasting machine, 4-welding equipment, 5-welding pinch roll, 6-induction heating device, 7-current distributor, 8-crystallization cooling roll, 9-secondary cooling leveling roll, 10-rolling mill pinch roll, 11-rolling mill, 12-online cooling device, 13-straightening machine, 14-shear, 15-coiling machine, A-base metal plate strip, B-metal solution pool, C-composite plate blank and D-composite plate strip.

Detailed Description

The following describes a production apparatus and method for preparing metal composite plate in short process according to the present invention with reference to the accompanying drawings and examples.