CN109482645B - Cold rolling method of zinc-plated chromium alloy composite material - Google Patents
Cold rolling method of zinc-plated chromium alloy composite material Download PDFInfo
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- CN109482645B CN109482645B CN201811326885.9A CN201811326885A CN109482645B CN 109482645 B CN109482645 B CN 109482645B CN 201811326885 A CN201811326885 A CN 201811326885A CN 109482645 B CN109482645 B CN 109482645B
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- 239000002131 composite material Substances 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000005097 cold rolling Methods 0.000 title claims abstract description 15
- 229910000599 Cr alloy Inorganic materials 0.000 title claims abstract description 12
- 239000000788 chromium alloy Substances 0.000 title claims abstract description 12
- 239000010935 stainless steel Substances 0.000 claims abstract description 87
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 87
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 86
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 86
- 229910000975 Carbon steel Inorganic materials 0.000 claims abstract description 74
- 239000010962 carbon steel Substances 0.000 claims abstract description 74
- 239000000203 mixture Substances 0.000 claims abstract description 33
- 238000010438 heat treatment Methods 0.000 claims abstract description 31
- 238000005096 rolling process Methods 0.000 claims abstract description 26
- DQIPXGFHRRCVHY-UHFFFAOYSA-N chromium zinc Chemical compound [Cr].[Zn] DQIPXGFHRRCVHY-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000007747 plating Methods 0.000 claims abstract description 16
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910000861 Mg alloy Inorganic materials 0.000 claims abstract description 13
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910001069 Ti alloy Inorganic materials 0.000 claims abstract description 13
- PGTXKIZLOWULDJ-UHFFFAOYSA-N [Mg].[Zn] Chemical compound [Mg].[Zn] PGTXKIZLOWULDJ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052802 copper Inorganic materials 0.000 claims abstract description 13
- 239000010949 copper Substances 0.000 claims abstract description 13
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 13
- 239000011733 molybdenum Substances 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 20
- 238000005554 pickling Methods 0.000 claims description 20
- 238000005406 washing Methods 0.000 claims description 16
- 238000005488 sandblasting Methods 0.000 claims description 15
- 239000012535 impurity Substances 0.000 claims description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 10
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 8
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 8
- 238000000137 annealing Methods 0.000 claims description 8
- 229910052804 chromium Inorganic materials 0.000 claims description 8
- 239000011651 chromium Substances 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 claims description 8
- 238000009499 grossing Methods 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 8
- 239000011701 zinc Substances 0.000 claims description 8
- 229910052725 zinc Inorganic materials 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 244000137852 Petrea volubilis Species 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 238000005422 blasting Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 4
- 230000006698 induction Effects 0.000 claims description 4
- 230000001788 irregular Effects 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000004381 surface treatment Methods 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 abstract description 3
- 238000005496 tempering Methods 0.000 abstract description 2
- 238000009713 electroplating Methods 0.000 description 11
- 238000000227 grinding Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B2003/008—Zinc or its alloys
Abstract
The invention relates to the technical field of zinc-chromium alloy, in particular to a cold rolling method of a zinc-chromium alloy plated composite material, which comprises the following steps: s1: preparing materials, namely selecting a stainless steel plate, a carbon steel plate and an aluminum plate with the same length and width, and S2: preheating stainless steel plate, carbon steel plate and aluminum plate before welding by a heating device, S3: 2-3 parts of pure copper, 2-3 parts of aluminum alloy, 1-2 parts of titanium alloy, 0.5-1 part of high-quality pure molybdenum and 1-2 parts of zinc-magnesium alloy are mixed S4: placing the stress-removed annealed stainless steel plate on a processing device, S5: rolling the composite plate by using a rolling mill, and S6: and (4) performing zinc-chromium plating mixture treatment on the composite board with the smooth surface. The method adopts the processes of firstly heating and tempering and then cold rolling in the cold rolling process of the chromium-plated alloy composite material, thereby greatly improving the treatment efficiency of the composite plate in the subsequent processing.
Description
Technical Field
The invention relates to the technical field of zinc-chromium alloy, in particular to a cold rolling method of a zinc-chromium alloy plated composite material.
Background
With the development of science and technology, people's life changes from the sky to the earth, and people can fly to the sky all the time.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a cold rolling method of a zinc-plated chromium alloy composite material.
In order to achieve the aim, the invention provides a cold rolling method of a zinc-plated chromium alloy composite material, which comprises the following steps:
s1: preparing materials, selecting a stainless steel plate, a carbon steel plate and an aluminum plate with the same length and width, wherein the thickness ratio of the stainless steel plate to the carbon steel plate to the aluminum plate is 1.5:1:1, the use amount of pure chromium to pure zinc is enough, 2-3 parts of pure copper, 2-3 parts of aluminum alloy, 1-2 parts of titanium alloy, 0.5-1 part of high-quality pure molybdenum and 1-2 parts of zinc-magnesium alloy are enough, performing surface treatment on the stainless steel plate, the carbon steel plate and the aluminum plate, performing surface pickling and rust removal on the stainless steel plate, the carbon steel plate and the aluminum plate, removing oxides and impurities on the surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate by using a pickling solution, performing surface sand blasting treatment on the stainless steel plate, the carbon steel plate and the aluminum plate after pickling, and performing sand blasting and grinding on the surfaces of the stainless;
s2: preheating a stainless steel plate, a carbon steel plate and an aluminum plate by a heating device before welding, wherein the preheating temperature of the stainless steel plate is 300-400 ℃, the preheating temperature of the carbon steel plate is 400-500 ℃, the preheating temperature of the aluminum plate is 200-300 ℃, and after preheating is finished, stress-relief annealing is respectively carried out on the stainless steel plate, the carbon steel plate and the aluminum plate so as to improve the subsequent composite processing quality of the stainless steel plate, the carbon steel plate and the aluminum plate;
s3: mixing 2-3 parts of pure copper, 2-3 parts of aluminum alloy, 1-2 parts of titanium alloy, 0.5-1 part of high-quality pure molybdenum and 1-2 parts of zinc-magnesium alloy, then putting the mixture into a heating furnace to be heated to more than 1200 ℃ for melting, and simultaneously putting sufficient pure chromium and pure zinc into another heating furnace to be heated to more than 800 ℃ for melting and mixing;
s4: placing the stainless steel plate subjected to stress relief annealing on a processing device, then coating a proper amount of a mixture of molten pure copper, aluminum alloy, titanium alloy, high-quality pure molybdenum and zinc-magnesium alloy on the upper surface of the stainless steel plate and not exceeding the edge of the stainless steel plate, placing an aluminum plate on the upper surface of the stainless steel plate after the liquid mixture is coated, aligning the edges, coating a proper amount of liquid mixture on the upper surface of the aluminum plate again after the placement is finished and not exceeding the edge of the aluminum plate, placing a carbon steel plate on the upper surface of the aluminum plate after the liquid mixture is coated, and finally cooling the composite plate;
s5: placing the cooled composite plate in an environment with the temperature of 30-40 ℃ and the humidity of 50-60%, and then rolling the composite plate by using a rolling mill, wherein in the rolling process, the first pass reduction rate of the rolling mill is more than 15%, the second pass reduction rate is controlled to be 50-60%, and the final pass reduction rate is controlled to be 35-45%, and after the rolling is finished, as the surface of the composite plate can form dents in the rolling process, the surface of the composite plate needs to be subjected to surface smoothing treatment;
s6: the method comprises the steps of carrying out zinc-chromium plating mixture treatment on a composite board with a smooth surface, deoiling the composite board by using alkaline mixed liquor, washing after deoiling to enable the surface of the composite board to be free of impurities, electroplating semi-bright nickel after washing, washing again after electroplating to take out impurities on the outer surface of the electroplating residue, taking a proper amount of liquid zinc-chromium mixture after washing to carry out zinc-chromium plating mixture treatment on the surface of the composite board, finally carrying out final treatment on the obtained composite board, and handing to a manufacturer for use after treatment.
Preferably, the blasting step in step S1 is as follows:
a1: firstly, the outer surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate are polished by a steel wire brush or sand paper, oxides on the outer surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate are removed, so that the flatness of the outer surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate is improved, and then the polished outer surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate are treated by a sand blasting machine to remove bulges, scratches and residual oxides on the outer surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate, so that the following processing;
a2: after the outer surface is treated, the dust on the outer surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate is blown off by the air blower, and then the outer surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate are wiped clean by acetone and alcohol, so that the aim of cleaning is fulfilled.
Preferably, the heating device in step S2 is a high-frequency heating device, wherein the high-frequency heating device is a magnetic field induction eddy current heating device, and generates a magnetic field by passing a current through a coil, so that when magnetic lines in the magnetic field pass through a metal material, the boiler body itself generates heat at a high speed, and then heats the material, and can reach a satisfactory temperature in a short time.
Preferably, the bonding between the plates in step S4 is performed by using multiple sets of robots.
Preferably, the surface smoothing process in step S5 is as follows:
a1: placing the composite board in a pickling solution for pickling so as to remove the bulges and oxides on the surface of the composite board;
a2: and cutting the edge of the pickled composite board, and cutting off the irregular part of the edge of the composite board, thereby facilitating the use of people.
Preferably, the temperature of the plating liquid in step S6 is controlled to be 45 to 60 ℃.
The cold rolling method of the zinc-plated chromium alloy composite material has the beneficial effects that: the cold rolling method of the chromium-plated alloy composite material has clear steps, adopts the processes of firstly heating and tempering and then cold rolling in the cold rolling process of the chromium-plated alloy composite material, greatly improves the treatment efficiency of the composite plate in subsequent processing, and adopts electroplating semi-bright nickel in the electroplating process, so that the chromium-plated composite plate has higher strength, better hardness and better wear resistance.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
Example 1
The invention provides a cold rolling method of a zinc-plated chromium alloy composite material, which comprises the following steps:
s1: preparing materials, selecting a stainless steel plate, a carbon steel plate and an aluminum plate with the same length and width, wherein the thickness ratio of the stainless steel plate to the carbon steel plate to the aluminum plate is 1.5:1:1, enough pure chromium to pure zinc, 2 parts of pure copper, 2 parts of aluminum alloy, 1 part of titanium alloy, 0.5 part of high-quality pure molybdenum and 1 part of zinc-magnesium alloy are used, performing surface treatment on the stainless steel plate, the carbon steel plate and the aluminum plate, firstly performing surface pickling derusting, removing oxides and impurities on the surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate by using a pickling solution, performing surface sand blasting treatment on the stainless steel plate, the carbon steel plate and the aluminum plate after pickling, and performing sand blasting and grinding on the surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate by using a sand blasting machine, wherein;
s2: preheating a stainless steel plate, a carbon steel plate and an aluminum plate by a heating device before welding, wherein the preheating temperature of the stainless steel plate is 350 ℃, the preheating temperature of the carbon steel plate is 400 ℃, the preheating temperature of the aluminum plate is 200 ℃, and after preheating is finished, stress relief annealing is respectively carried out on the stainless steel plate, the carbon steel plate and the aluminum plate so as to improve the subsequent composite processing quality of the stainless steel plate, the carbon steel plate and the aluminum plate;
s3: mixing 2 parts of pure copper, 2 parts of aluminum alloy, 1 part of titanium alloy, 0.5 part of high-quality pure molybdenum and 1 part of zinc-magnesium alloy, then putting the mixture into a heating furnace to be heated to more than 1200 ℃ for melting, and simultaneously putting sufficient pure chromium and pure zinc into another heating furnace to be heated to more than 800 ℃ for melting and mixing;
s4: placing the stainless steel plate subjected to stress relief annealing on a processing device, then coating a proper amount of a mixture of molten pure copper, aluminum alloy, titanium alloy, high-quality pure molybdenum and zinc-magnesium alloy on the upper surface of the stainless steel plate and not exceeding the edge of the stainless steel plate, placing an aluminum plate on the upper surface of the stainless steel plate after the liquid mixture is coated, aligning the edges, coating a proper amount of liquid mixture on the upper surface of the aluminum plate again after the placement is finished and not exceeding the edge of the aluminum plate, placing a carbon steel plate on the upper surface of the aluminum plate after the liquid mixture is coated, and finally cooling the composite plate;
s5: placing the cooled composite plate in an environment with the temperature of 30 ℃ and the humidity of 50%, and then rolling the composite plate by using a rolling mill, wherein in the rolling process, the first pass reduction rate of the rolling mill is more than 15%, the second pass reduction rate is controlled at 50%, the final pass reduction rate is controlled at 35%, and after the rolling is finished, as the surface of the composite plate can form dents in the rolling process, the surface of the composite plate needs to be subjected to surface smoothing treatment;
s6: the method comprises the steps of carrying out zinc-chromium plating mixture treatment on a composite board with a smooth surface, deoiling the composite board by using alkaline mixed liquor, washing after deoiling to enable the surface of the composite board to be free of impurities, electroplating semi-bright nickel after washing, washing again after electroplating to take out impurities on the outer surface of the electroplating residue, taking a proper amount of liquid zinc-chromium mixture after washing to carry out zinc-chromium plating mixture treatment on the surface of the composite board, finally carrying out final treatment on the obtained composite board, and handing to a manufacturer for use after treatment.
The blasting process in step S1 is as follows:
a1: firstly, the outer surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate are polished by a steel wire brush or sand paper, oxides on the outer surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate are removed, so that the flatness of the outer surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate is improved, and then the polished outer surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate are treated by a sand blasting machine to remove bulges, scratches and residual oxides on the outer surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate, so that the following processing;
a2: after the outer surface is treated, the dust on the outer surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate is blown off by the air blower, and then the outer surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate are wiped clean by acetone and alcohol, so that the aim of cleaning is fulfilled.
The heating device in step S2 is a highly distributed heating device, wherein the high frequency heating device is a magnetic field induction eddy current heating principle, and generates a magnetic field by passing a current through a coil, so that when magnetic lines of force in the magnetic field pass through a metal material, the boiler body itself automatically generates heat at a high speed, and then heats the material, and can reach a satisfactory temperature in a short time.
And the plates in the step S4 are jointed by adopting a plurality of groups of robots.
The surface smoothing process in step S5 is as follows:
a1: placing the composite board in a pickling solution for pickling so as to remove the bulges and oxides on the surface of the composite board;
a2: and cutting the edge of the pickled composite board, and cutting off the irregular part of the edge of the composite board, thereby facilitating the use of people.
The temperature of the plating liquid in step S6 is controlled to 50 ℃.
Example 2
The invention provides a cold rolling method of a zinc-plated chromium alloy composite material, which comprises the following steps:
s1: preparing materials, selecting a stainless steel plate, a carbon steel plate and an aluminum plate with the same length and width, wherein the thickness ratio of the stainless steel plate to the carbon steel plate to the aluminum plate is 1.5:1:1, enough pure chromium to pure zinc, 3 parts of pure copper, 3 parts of aluminum alloy, 2 parts of titanium alloy, 1 part of high-quality pure molybdenum and 2 parts of zinc-magnesium alloy are used, performing surface treatment on the stainless steel plate, the carbon steel plate and the aluminum plate, performing surface pickling derusting firstly, removing oxides and impurities on the surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate by using a pickling solution, performing surface sand blasting treatment on the stainless steel plate, the carbon steel plate and the aluminum plate after pickling, and performing sand blasting and grinding on the surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate by using a sand blasting machine, wherein;
s2: preheating a stainless steel plate, a carbon steel plate and an aluminum plate by a heating device before welding, wherein the preheating temperature of the stainless steel plate is 400 ℃, the preheating temperature of the carbon steel plate is 500 ℃, the preheating temperature of the aluminum plate is 300 ℃, and after preheating is finished, stress relief annealing is respectively carried out on the stainless steel plate, the carbon steel plate and the aluminum plate so as to improve the subsequent composite processing quality of the stainless steel plate, the carbon steel plate and the aluminum plate;
s3: 3 parts of pure copper, 3 parts of aluminum alloy, 2 parts of titanium alloy, 1 part of high-quality pure molybdenum and 2 parts of zinc-magnesium alloy are mixed, then the mixture is placed into a heating furnace to be heated to more than 1200 ℃ for melting, and simultaneously sufficient pure chromium and pure zinc are put into another heating furnace to be heated to more than 800 ℃ for melting and mixing;
s4: placing the stainless steel plate subjected to stress relief annealing on a processing device, then coating a proper amount of a mixture of molten pure copper, aluminum alloy, titanium alloy, high-quality pure molybdenum and zinc-magnesium alloy on the upper surface of the stainless steel plate and not exceeding the edge of the stainless steel plate, placing an aluminum plate on the upper surface of the stainless steel plate after the liquid mixture is coated, aligning the edges, coating a proper amount of liquid mixture on the upper surface of the aluminum plate again after the placement is finished and not exceeding the edge of the aluminum plate, placing a carbon steel plate on the upper surface of the aluminum plate after the liquid mixture is coated, and finally cooling the composite plate;
s5: placing the cooled composite plate in an environment with the temperature of 40 ℃ and the humidity of 60%, and then rolling the composite plate by using a rolling mill, wherein in the rolling process, the first pass reduction rate of the rolling mill is more than 15%, the second pass reduction rate is controlled at 60%, the final pass reduction rate is controlled at 45%, and after the rolling is finished, as the surface of the composite plate can form dents in the rolling process, the surface of the composite plate needs to be subjected to surface smoothing treatment;
s6: the method comprises the steps of carrying out zinc-chromium plating mixture treatment on a composite board with a smooth surface, deoiling the composite board by using alkaline mixed liquor, washing after deoiling to enable the surface of the composite board to be free of impurities, electroplating semi-bright nickel after washing, washing again after electroplating to take out impurities on the outer surface of the electroplating residue, taking a proper amount of liquid zinc-chromium mixture after washing to carry out zinc-chromium plating mixture treatment on the surface of the composite board, finally carrying out final treatment on the obtained composite board, and handing to a manufacturer for use after treatment.
The blasting process in step S1 is as follows:
a1: firstly, the outer surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate are polished by a steel wire brush or sand paper, oxides on the outer surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate are removed, so that the flatness of the outer surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate is improved, and then the polished outer surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate are treated by a sand blasting machine to remove bulges, scratches and residual oxides on the outer surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate, so that the following processing;
a2: after the outer surface is treated, the dust on the outer surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate is blown off by the air blower, and then the outer surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate are wiped clean by acetone and alcohol, so that the aim of cleaning is fulfilled.
The heating device in step S2 is a highly distributed heating device, wherein the high frequency heating device is a magnetic field induction eddy current heating principle, and generates a magnetic field by passing a current through a coil, so that when magnetic lines of force in the magnetic field pass through a metal material, the boiler body itself automatically generates heat at a high speed, and then heats the material, and can reach a satisfactory temperature in a short time.
And the plates in the step S4 are jointed by adopting a plurality of groups of robots.
The surface smoothing process in step S5 is as follows:
a1: placing the composite board in a pickling solution for pickling so as to remove the bulges and oxides on the surface of the composite board;
a2: and cutting the edge of the pickled composite board, and cutting off the irregular part of the edge of the composite board, thereby facilitating the use of people.
The temperature of the plating liquid in step S6 is controlled to 60 ℃.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (1)
1. A cold rolling method of a zinc-plated chromium alloy composite material is characterized by comprising the following steps:
s1: preparing materials, selecting a stainless steel plate, a carbon steel plate and an aluminum plate with the same length and width, wherein the thickness ratio of the stainless steel plate to the carbon steel plate to the aluminum plate is 1.5:1:1, the use amount of pure chromium to pure zinc is enough, 2-3 parts of pure copper, 2-3 parts of aluminum alloy, 1-2 parts of titanium alloy, 0.5-1 part of high-quality pure molybdenum and 1-2 parts of zinc-magnesium alloy, performing surface treatment on the stainless steel plate, the carbon steel plate and the aluminum plate, performing surface pickling derusting at first, removing oxides and impurities on the surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate by using pickling solution, performing surface sand blasting treatment on the stainless steel plate, the carbon steel plate and the aluminum plate after pickling, performing sand blasting treatment on the surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate by using a sand blasting machine;
s2: preheating a stainless steel plate, a carbon steel plate and an aluminum plate by a heating device before welding, wherein the preheating temperature of the stainless steel plate is 300-400 ℃, the preheating temperature of the carbon steel plate is 400-500 ℃, the preheating temperature of the aluminum plate is 200-300 ℃, and after preheating is finished, stress-relief annealing is respectively carried out on the stainless steel plate, the carbon steel plate and the aluminum plate so as to improve the subsequent composite processing quality of the stainless steel plate, the carbon steel plate and the aluminum plate;
s3: mixing 2-3 parts of pure copper, 2-3 parts of aluminum alloy, 1-2 parts of titanium alloy, 0.5-1 part of high-quality pure molybdenum and 1-2 parts of zinc-magnesium alloy, then putting the mixture into a heating furnace to be heated to more than 1200 ℃ for melting, and simultaneously putting sufficient pure chromium and pure zinc into another heating furnace to be heated to more than 800 ℃ for melting and mixing;
s4: placing the stainless steel plate subjected to stress relief annealing on a processing device, then coating a proper amount of a mixture of molten pure copper, aluminum alloy, titanium alloy, high-quality pure molybdenum and zinc-magnesium alloy on the upper surface of the stainless steel plate and not exceeding the edge of the stainless steel plate, placing an aluminum plate on the upper surface of the stainless steel plate after the liquid mixture is coated, aligning the edges, coating a proper amount of liquid mixture on the upper surface of the aluminum plate again after the placement is finished and not exceeding the edge of the aluminum plate, placing a carbon steel plate on the upper surface of the aluminum plate after the liquid mixture is coated, and finally cooling the composite plate;
s5: placing the cooled composite plate in an environment with the temperature of 30-40 ℃ and the humidity of 50-60%, and then rolling the composite plate by using a rolling mill, wherein in the rolling process, the first pass reduction rate of the rolling mill is more than 15%, the second pass reduction rate is controlled to be 50-60%, and the final pass reduction rate is controlled to be 35-45%, and after the rolling is finished, as the surface of the composite plate can form dents in the rolling process, the surface of the composite plate needs to be subjected to surface smoothing treatment;
s6: performing zinc-chromium plating mixture treatment on the composite board with the smooth surface, firstly removing oil from the composite board by using alkaline mixed liquor, performing washing after oil removal to ensure that the surface of the composite board has no impurities, performing semi-bright nickel plating after washing, performing washing again after the plating to take out impurities on the outer surface of the plating residue, performing zinc-chromium plating mixture treatment on the surface of the composite board by taking a proper amount of liquid zinc-chromium mixture after washing, finally performing final treatment on the obtained composite board, and handing the composite board for use by a manufacturer after the treatment is finished;
the blasting process in step S1 is as follows:
a1: firstly, the outer surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate are polished by a steel wire brush or sand paper, oxides on the outer surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate are removed, so that the flatness of the outer surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate is improved, and then the polished outer surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate are treated by a sand blasting machine to remove bulges, scratches and residual oxides on the outer surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate, so that the following processing;
a2: after the outer surface is treated, blowing off dust on the outer surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate by using a blower, and wiping the outer surfaces of the stainless steel plate, the carbon steel plate and the aluminum plate clean by using acetone and alcohol to achieve the aim of cleaning;
the heating device in the step S2 is a high-temperature heating device, wherein the high-frequency heating device adopts the magnetic field induction eddy current heating principle, the magnetic field is generated by passing current through a coil, when magnetic lines in the magnetic field pass through a metal material, the boiler body automatically heats at a high speed, then heats the substance, and can reach a satisfactory temperature in a short time;
the plates in the step S4 are jointed by adopting a plurality of groups of robots;
the surface smoothing process in step S5 is as follows:
a1: placing the composite board in a pickling solution for pickling so as to remove the bulges and oxides on the surface of the composite board;
a2: cutting the edge of the pickled composite board, and cutting off the irregular part of the edge of the composite board, thereby facilitating the use of people;
the temperature of the plating liquid in step S6 is controlled to be 45 to 60 ℃.
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| JP5434145B2 (en) * | 2009-03-04 | 2014-03-05 | Ｊｆｅスチール株式会社 | Structural high-strength thick steel plate with excellent brittle crack propagation stopping characteristics and method for producing the same |
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