阅读说明：本技术 一种建筑行业用耐腐蚀金属复合板的制作方法 (Manufacturing method of corrosion-resistant metal composite plate for construction industry ) 是由 刘金涛 李亚 任江毅 蒋晓博 李军 翟伟国 张保奇 邓光平 于 2019-10-22 设计创作，主要内容包括：一种建筑行业用耐腐蚀金属复合板的制作方法,先通过爆炸焊接制作两块由耐腐蚀复板和基层钢板构成的爆炸焊接复合板坯,然后将两块爆炸焊接复合板坯上耐腐蚀复板一侧的长×宽的表面相对叠放并填充隔离剂,然后对两块爆炸焊接复合板坯的长宽边沿进行封焊和真空处理,使两块爆炸焊接复合板坯连接为一体,获得轧制组坯,对轧制组坯沿其长度方向进行轧制,然后按照所需复合板的长宽尺寸对轧制组坯封焊的边沿部位进行切割,使两块轧制后的爆炸焊接复合板坯分离,表面清理后即获得两块相同尺寸的耐腐蚀金属复合板。本发明能够避免直接采用爆炸焊接或者轧制方法制作耐腐蚀金属复合板的弊端,便于对较大尺寸的耐腐蚀金属复合板进行高效高质量的制造。(A method for manufacturing corrosion-resistant metal composite plates for the building industry includes the steps of firstly manufacturing two explosion-welded composite plate blanks consisting of corrosion-resistant composite plates and base steel plates through explosion welding, then oppositely stacking the length multiplied by width surfaces of one sides of the corrosion-resistant composite plates on the two explosion-welded composite plate blanks, filling an isolating agent, then carrying out sealing welding and vacuum treatment on the length and width edges of the two explosion-welded composite plate blanks to enable the two explosion-welded composite plate blanks to be connected into a whole to obtain a rolled assembly, rolling the rolled assembly along the length direction of the rolled assembly, then cutting the edge parts of the rolled assembly subjected to sealing welding according to the length and width dimensions of required composite plates to enable the two rolled explosion-welded composite plate blanks to be separated, and cleaning the surfaces of the two corrosion-resistant metal composite plates with the same dimensions. The invention can avoid the defect that the corrosion-resistant metal composite plate is manufactured by directly adopting an explosive welding or rolling method, and is convenient for manufacturing the corrosion-resistant metal composite plate with larger size with high efficiency and high quality.)

1. A method for manufacturing a corrosion-resistant metal composite plate for the construction industry is characterized by comprising the following steps of:

firstly, manufacturing two corrosion-resistant composite plates (1) with the same size, manufacturing two base steel plates (2) with the same size, and performing explosion welding on the two corrosion-resistant composite plates (1) and the respective base steel plate (2) respectively to ensure that the surfaces of the corrosion-resistant composite plates (1) and the base steel plates (2) with the length multiplied by the width are attached and connected to obtain two explosion-welded composite plate blanks with the same size;

step two, oppositely stacking the length multiplied by the width surfaces of one side of the corrosion-resistant clad plates (1) on the two explosion-welded composite plate blanks, filling a layer of isolating agent (3) between the opposite surfaces of the two explosion-welded composite plate blanks, and then carrying out seal welding and vacuum treatment on the length and width edges of the opposite sides of the two explosion-welded composite plate blanks which are aligned with each other, so that the two explosion-welded composite plate blanks are connected into a whole to obtain a rolled assembly;

and step three, rolling the rolling assembly along the length direction of the rolling assembly according to a rolling proportion of 5-15 times, rolling the thicknesses of two explosion-welded composite slabs in the rolling assembly to the thickness size of the required composite slab, then cutting the edge part of the sealing welding of the rolling assembly according to the length and width sizes of the required composite slab, separating the two rolled explosion-welded composite slabs, and cleaning the residual separant (3) on the surface to obtain two corrosion-resistant metal composite slabs with the same size.

2. The method for manufacturing a corrosion-resistant metal composite plate for the construction industry according to claim 1, wherein the method comprises the following steps: in the first step, the thickness of the base steel plate (2) is larger than that of the corrosion-resistant composite plate (1).

3. The method for manufacturing a corrosion-resistant metal composite plate for the construction industry according to claim 1, wherein the method comprises the following steps: in the second step, a layer of separant (3) is coated on the length-multiplied-width surfaces of one side of the corrosion-resistant composite plate (1) on the two explosion-welded composite plate blanks respectively, and then the surfaces of the separant (3) coated on the two explosion-welded composite plate blanks are oppositely stacked.

4. The method for manufacturing a corrosion-resistant metal composite plate for the construction industry according to claim 3, wherein the method comprises the following steps: in the second step, the separant (3) adopts a magnesium oxide binder.

5. The method for manufacturing a corrosion-resistant metal composite plate for the construction industry according to claim 1, wherein the method comprises the following steps: and in the second step, the opposite sides of the two explosion-welded composite slabs which are stacked are sealed and welded at the long and wide edges which are aligned with each other, and then the sealed and welded rolling assembly is subjected to vacuum treatment by using vacuum equipment so as to reduce the influence of the air in the rolling assembly on the composite quality during rolling.

6. The method for manufacturing a corrosion-resistant metal composite plate for the construction industry according to claim 1, wherein the method comprises the following steps: and in the second step, the two explosion-welded composite slabs which are stacked are placed in a vacuum chamber for vacuumizing, and then the long and wide edges which are opposite to one side and aligned with each other on the two explosion-welded composite slabs are sealed and welded so as to reduce the influence of the air in the rolling assembly on the composite quality during rolling.

7. The method for manufacturing a corrosion-resistant metal composite plate for the construction industry according to claim 1, wherein the method comprises the following steps: and in the third step, when the edge part of the seal welding of the rolling assembly is cut, the cutting sizes of the two sides of the rolling assembly along the width direction are ensured to be the same, and the cutting sizes of the two sides of the rolling assembly along the length direction are also ensured to be the same.

8. The method for manufacturing a corrosion-resistant metal composite plate for the construction industry according to claim 1, wherein the method comprises the following steps: in the third step, plasma cutting is adopted.

Technical Field

The invention relates to the field of corrosion-resistant metal composite plates, in particular to a manufacturing method of a corrosion-resistant metal composite plate for the construction industry.

Background

In the building industry, a panel is used as a working surface and is positioned at the uppermost part of a mould platform, contact media mainly comprise concrete mortar and water, and although the corrosion of the media is not strong, a common steel material is easy to rust due to being in a wet state for a long time. At present, a panel of the multifunctional mould table for the construction industry is generally made of a Q235B steel plate, the specification size is 10 multiplied by 4000 multiplied by 9000mm, the smooth and clean surface, the rust prevention and the splicing welding prevention can be ensured, the general use requirements can be met, but due to the surface corrosion problem, the surface of a precast concrete part can be permeated with iron rust to generate spots, the surface quality of a precast product cannot reach the standard and is scrapped, the economic loss is large, and therefore the surface quality of the precast product is ensured by the panel material with the corrosion resistance, and the multifunctional mould table has important significance for reducing waste products and reducing cost.

The composite steel plate can give full play to respective advantages of the base layer material and the clad layer material, so that the materials can be perfectly matched in performance, if the die table panel is manufactured by adopting the composite steel plate to replace a single steel plate, the die table panel can have good corrosion resistance of the clad layer material and also can have the strength of the base layer material, thereby simultaneously meeting the requirements of the panel in the building industry on two aspects of mechanical strength and corrosion resistance, not only effectively solving the problem of surface corrosion and ensuring the surface quality of a concrete prefabricated part product, but also avoiding the trouble of repeated rust removal, having the characteristics of long service life and no maintenance, and having important values in all aspects of technology, economy and quality.

Steel sheets are generally obtained by rolling a slab, and composite steel sheets are generally obtained by explosion welding of a base plate and a clad plate. However, when a composite board with a large length, width and size not less than 9000 x 4000mm is directly manufactured by explosive welding, due to the fact that the width of the composite board is large and the steel plate is relatively thin, an un-compounded area is easily formed between the base plate and the composite board, and the local convex-concave shape of the plate cannot meet the quality requirement; and because the width of the plate is not less than 4000mm, the difficulty of rolling by the existing rolling mill is high, the requirement on the performance of the rolling mill is high, the poor combination of the plate edges is easily caused, and because the hardness of the corrosion-resistant clad plate is low, the surface of the corrosion-resistant clad plate is easily damaged by rolling treatment, and the quality requirement on the composite plate is also difficult to meet, the corrosion-resistant metal composite plate with the length multiplied by the width of not less than 9000 multiplied by 4000mm is difficult to efficiently and high-quality produce in the prior art, and the requirement on the panel in the building industry is difficult to meet.

Disclosure of Invention

The invention aims to provide a method for manufacturing a corrosion-resistant metal composite plate for the construction industry, which is convenient for the efficient and high-quality production and manufacture of the corrosion-resistant metal composite plate with the length, width and size not less than 9000 and 4000 mm.

The technical scheme adopted by the invention for solving the technical problems is as follows: a method for manufacturing a corrosion-resistant metal composite plate for the construction industry, wherein the length and width of the composite plate are not less than 9000 multiplied by 4000mm, comprises the following steps:

firstly, manufacturing two corrosion-resistant composite plates with the same size, manufacturing two base steel plates with the same size, and performing explosion welding on the two corrosion-resistant composite plates and the respective base steel plate respectively to ensure that the length multiplied by the width surfaces of the corrosion-resistant composite plates and the base steel plates are jointed and connected to obtain two explosion-welded composite plate blanks with the same size;

secondly, oppositely stacking the length multiplied by the width surfaces of one side of the corrosion-resistant clad plates on the two explosion-welded composite plate blanks, filling a layer of isolating agent between the opposite surfaces of the two explosion-welded composite plate blanks, and then performing seal welding and vacuum treatment on the length and width edges of the opposite sides of the two explosion-welded composite plate blanks which are mutually aligned to connect the two explosion-welded composite plate blanks into a whole to obtain a rolled assembly;

and step three, rolling the rolled assembly along the length direction of the rolled assembly according to a rolling proportion of 5-15 times, rolling the thicknesses of two explosion-welded composite slabs in the rolled assembly to the thickness size of the required composite slab, then cutting the edge part of the rolled assembly in a sealing welding mode according to the length and width sizes of the required composite slab, separating the two rolled explosion-welded composite slabs, and cleaning the residual separant on the surface to obtain two corrosion-resistant metal composite slabs with the same size.

Preferably, in the step one, the thickness of the base steel plate is larger than that of the corrosion-resistant composite plate.

Preferably, in the second step, a layer of isolating agent is coated on the length-multiplied-width surfaces of the corrosion-resistant composite plates on the two explosion-welded composite plate blanks respectively, and then the surfaces of the two explosion-welded composite plate blanks coated with the isolating agent are oppositely stacked.

Preferably, in the second step, the release agent is a magnesium oxide binder.

Preferably, in the second step, the opposite sides of the two explosion-welded composite slabs which are stacked are sealed and welded with the long and wide edges aligned with each other, and then the sealed and welded rolling assembly is subjected to vacuum treatment by using vacuum equipment, so that the influence of the air inside the rolling assembly on the composite quality during rolling is reduced.

Preferably, in the second step, the two explosion-welded composite slabs which are stacked are placed in a vacuum chamber for vacuumizing, and then the long and wide edges which are opposite to one side and aligned with each other on the two explosion-welded composite slabs are sealed and welded so as to reduce the influence of the air in the rolling assembly on the composite quality during rolling.

Preferably, in the third step, when the edge portion of the seal welding of the rolling assembly is cut, the cutting sizes of the two sides of the rolling assembly in the width direction are ensured to be the same, and the cutting sizes of the two sides of the rolling assembly in the length direction are also ensured to be the same.

Preferably, in step three, plasma cutting is used.

According to the technical scheme, the invention has the beneficial effects that:

the invention provides a method for manufacturing a corrosion-resistant metal composite plate for building industry, which is characterized in that two explosion-welded composite plate blanks with the same size are stacked and rolled, so that the explosion-welded composite plate blanks directly obtained by explosion welding of a corrosion-resistant composite plate and a base steel plate can be changed into composite plates with required sizes through a rolling process, the thickness of the corrosion-resistant composite plate and the base steel plate during initial explosion welding is larger than the thickness of the corrosion-resistant composite plate and the base steel plate after final rolling in the composite plates, the bonding condition of the corrosion-resistant composite plate and the base steel plate is improved through the rolling process, the condition that an un-compounded area exists between a base plate and the composite plate and the plate is locally convex and concave due to the fact that the steel plate is relatively thin due to large plate width of the explosion-welded composite plate blanks is eliminated, and the problem that the plate shape quality is low when the large-size corrosion-resistant metal composite plate with the length multiplied by width not less than .

According to the invention, the opposite sides of the two explosion-welded composite slabs and the aligned long and wide edges are subjected to sealing welding and vacuum treatment, so that when a rolling assembly formed by connecting the two explosion-welded composite slabs is sent into a rolling mill, the edges of the explosion-welded composite slabs can be ensured to be combined in the rolling process, the problem of poor plate edge combination in the rolling process due to the fact that the plate width is not less than 4000mm is avoided, the requirements on the performance of the rolling mill are reduced, the size of the rolling assembly meets the reasonable range capable of controlling the rolling proportion to be 5-15 times, and the smooth and efficient operation of the rolling process is further ensured.

The surfaces of the corrosion-resistant clad plates on the two explosion-welded composite plate blanks are opposite, so that the surfaces which are in direct contact with a roller of a rolling mill in the rolling process can be ensured to be all base steel plates, and the isolating agent is filled between the two stacked explosion-welded composite plate blanks, so that the surfaces of the corrosion-resistant clad plates can be fully protected in the rolling process, the corrosion-resistant clad plates are prevented from being damaged due to low hardness, the quality requirement of the rolled composite plates is ensured, the corrosion-resistant metal composite plates with the length multiplied by the width not less than 9000 multiplied by 4000mm can be conveniently produced and manufactured with high efficiency and high quality, and the requirements for panels in the building industry can be better met.

Drawings

FIG. 1 is a schematic view of a rolling stack of the present invention;

FIG. 2 is a schematic view of an explosion welded composite slab of the present invention;

fig. 3 is a schematic top view of a rolled assembly being cut, wherein the solid line is the rolled edge of the rolled assembly and the dotted line is the long and wide edge of the desired composite plate.

The labels in the figure are: 1. corrosion-resistant clad plate, 2, base steel plate, 3 and isolating agent.

Detailed Description

Referring to the drawings, the specific embodiments are as follows:

a method for manufacturing a corrosion-resistant metal composite plate for the construction industry, wherein the length and width of the composite plate are not less than 9000 multiplied by 4000mm, comprises the following steps:

firstly, two corrosion-resistant composite plates 1 with the same size are manufactured, two base steel plates 2 with the same size are manufactured, the two corrosion-resistant composite plates 1 are respectively subjected to explosion welding with the respective base steel plate 2, the surfaces of the corrosion-resistant composite plates 1 and the base steel plates 2 with the length multiplied by the width are attached and connected, and two explosion-welded composite plate blanks with the same size are obtained. The cost of the base steel plate 2 is far lower than that of the corrosion-resistant clad plate 1, so that the thickness of the base steel plate 2 in the composite plate is usually larger than that of the corrosion-resistant clad plate 1, and the cost of the composite plate is relatively reasonable.

And secondly, oppositely stacking the length multiplied by the width surfaces of one side of the corrosion-resistant composite plates 1 on the two explosion-welded composite plate blanks, and filling a layer of isolating agent 3 between the opposite surfaces of the two explosion-welded composite plate blanks. The filling process adopts a method that a layer of separant 3 is coated on the surfaces of two explosion-welded composite slabs respectively, and then the surfaces of the separant 3 coated on the two explosion-welded composite slabs are oppositely stacked, wherein the separant 3 can adopt a magnesium oxide binder.

And then, carrying out seal welding and vacuum treatment on the long and wide edges which are aligned with each other and are arranged on the opposite sides of the two explosion-welded composite plate blanks to connect the two explosion-welded composite plate blanks into a whole to obtain a rolling assembly. During the concrete operation, the opposite sides of the two explosion-welded composite slabs which are stacked can be sealed and welded at the long and wide edges which are aligned with each other, then the rolling assembly which is sealed and welded is subjected to vacuum treatment by using vacuum equipment, or the two explosion-welded composite slabs which are stacked can be placed in a vacuum chamber for vacuumizing, then the opposite sides of the two explosion-welded composite slabs and the long and wide edges which are aligned with each other are sealed and welded, the air remained in the rolling assembly is reduced by the vacuum environment treatment in the two modes, and therefore the influence of the air in the rolling assembly on the composite quality of the two explosion-welded composite slabs during rolling is reduced.

And thirdly, rolling the rolling assembly along the length direction according to a rolling proportion of 5-15 times, rolling the thicknesses of two explosion-welded composite slabs in the rolling assembly to the thickness size of the required composite slab, then cutting the edge parts of the sealing welding of the rolling assembly according to the length and width sizes of the required composite slab, ensuring that the cutting sizes of the two sides of the rolling assembly along the width direction are the same, ensuring that the cutting sizes of the two sides of the rolling assembly along the length direction are also the same, and adopting plasma cutting to separate the two rolled explosion-welded composite slabs, and cleaning the residual separant 3 on the surface to obtain the two corrosion-resistant metal composite slabs with the same size.