WO2020001396A1 - 一种短流程制备金属复合板的生产装置和方法 - Google Patents

一种短流程制备金属复合板的生产装置和方法 Download PDF

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Publication number
WO2020001396A1
WO2020001396A1 PCT/CN2019/092529 CN2019092529W WO2020001396A1 WO 2020001396 A1 WO2020001396 A1 WO 2020001396A1 CN 2019092529 W CN2019092529 W CN 2019092529W WO 2020001396 A1 WO2020001396 A1 WO 2020001396A1
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Prior art keywords
composite
cooling
metal
strip
base material
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PCT/CN2019/092529
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English (en)
French (fr)
Inventor
张庆丰
焦四海
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宝山钢铁股份有限公司
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Application filed by 宝山钢铁股份有限公司 filed Critical 宝山钢铁股份有限公司
Priority to JP2020570856A priority Critical patent/JP7253576B2/ja
Priority to US17/254,659 priority patent/US11697150B2/en
Priority to KR1020207036605A priority patent/KR102483849B1/ko
Priority to EP19824655.5A priority patent/EP3797888B1/en
Publication of WO2020001396A1 publication Critical patent/WO2020001396A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/008—Continuous casting of metals, i.e. casting in indefinite lengths of clad ingots, i.e. the molten metal being cast against a continuous strip forming part of the cast product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/08—Accessories for starting the casting procedure
    • 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
    • B21B1/46—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 metal immediately subsequent to continuous casting
    • B21B1/463—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 metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before 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
    • B21B15/0007—Cutting or shearing the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0622—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/0665—Accessories therefor for treating the casting surfaces, e.g. calibrating, cleaning, dressing, preheating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/0665—Accessories therefor for treating the casting surfaces, e.g. calibrating, cleaning, dressing, preheating
    • B22D11/0668—Accessories therefor for treating the casting surfaces, e.g. calibrating, cleaning, dressing, preheating for dressing, coating or lubricating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/068—Accessories therefor for cooling the cast product during its passage through the mould surfaces
    • B22D11/0682—Accessories therefor for cooling the cast product during its passage through the mould surfaces by cooling the casting wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/18—Controlling or regulating processes or operations for pouring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/22—Controlling or regulating processes or operations for cooling cast stock or mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/04—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a rolling mill
    • 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
    • B21B15/0007—Cutting or shearing the product
    • B21B2015/0014—Cutting or shearing the product transversely to the rolling direction
    • 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
    • B21B2015/0071—Levelling the rolled product

Definitions

  • the invention relates to the field of iron and steel metallurgy production, in particular to a short-process production device and method for preparing metal composite plates, which can produce metal composite plate products with different material combinations.
  • Explosive compounding clean the contact surfaces of two pieces of different metal materials, add explosives to the interface, and use the instantaneous high temperature generated by the explosion to weld them together. The combination is not sufficient and the composite strength is low, which is suitable for single sheet and small batch production;
  • Rolling composite clean the composite surface of stainless steel and carbon steel, vacuum-weld all around after alignment, and then heat-roll to complete the composite manufacturing method. It has sufficient bonding, high composite strength, but low production efficiency. Leaflet, small batch production;
  • Centrifugal casting compound Carbon steel and stainless steel molten steel are added to the centrifuge in turn.
  • the carbon steel and stainless steel molten steel can be used to form annular composite plates and tubes, and then straightened, heated, and rolled.
  • the ideal composite process is the rolling composite method.
  • the interface of the composite plate produced is completely metallurgical, with high bonding strength and excellent product performance, but the efficiency of forming the billet is low.
  • the process of forming the billet includes multiple processes, which is difficult to achieve continuous Costs are higher for automation, scale and production.
  • the patent CN1714957A introduces a method and equipment for producing composite plates, strips of different metal materials.
  • the same continuous casting machine uses 2 to 3 carbon steel or stainless steel molten steel molds to work at the same time to achieve continuous casting and rolling of different metal materials, single and double-sided composite plates, strips.
  • the crystallizer is moved by four simultaneous cycles of up, down, left, and right.
  • the composition of the steel strip has changed the previous mold.
  • the multi-layer and base metal are solidified from the liquid metal in the crystallizer.
  • Patent CN101780532A introduces a liquid-phase composite slab continuous casting method by injecting the base metal liquid and the multi-layer metal liquid into a roll mold crystallizer molten pool formed by a crystallization cooling roll and a side sealing plate, respectively. It is divided into a base molten pool and a multi-layer molten pool.
  • the composite slab formed in the crystallizer is formed by straightening and sizing.
  • the disadvantage is that both the double layer and the base layer are formed by the solidification of the molten steel at the same time, and the control of the joint surface is difficult. It is necessary to keep the two molten steels from mixing, and to ensure that the two materials cannot be combined without cold.
  • Patent CN104249135A describes a method for preparing a double-rolled thin strip of a composite strip.
  • the metal liquid is cooled by the crystallization cooling roll and the intermediate strip.
  • the composite metal liquid is to be solidified on the surface of the base material, and after cooling out of the crystallizer, it is cooled, flattened, and rolled to obtain a composite strip.
  • Both of these methods are based on thin strip continuous casting technology.
  • the products produced are mainly thin gauge strips, and the thickness of the cladding layer after solidification is limited, which is not suitable for the preparation of thick gauge cladding composite strips.
  • the patent CN105215307A introduces a production process and equipment for a double-layer composite board, and a method for obtaining a composite board by solidifying different materials successively through two tundishes and two crystallizers.
  • the solidified slab in the first mold enters the second mold, so that the second material adheres to the surface to solidify, and the single-sided composite plate is produced through the secondary cooling and rolling processes.
  • Patent CN1141962A describes a continuous production method for reverse solidification composite strips. After unwinding, descaling and passivation, the master tape is preheated at 200-1000 ° C, and the molten metal entering the crystallization tank is continuously thermally compounded.
  • the invention provides a short-flow production device and method for preparing a metal composite plate, which can improve the production efficiency of the composite plate and reduce the production cost.
  • a short-flow production device and method for preparing a metal composite plate according to the present invention are as follows:
  • a short-process production device for preparing metal composite plates includes a base material supply device consisting of an unwinder, a pinch roller, a shot blasting machine, a welding equipment, a welding pinch roller, and an induction heating device. At least one of crystal cooling rolls, secondary cooling smoothing rolls, rolling pinch rolls, rolling mills, in-line cooling devices, straighteners, and cut-to-length shears and coilers, of which there are two base material supply equipment, set On both sides of the two crystalline cooling rolls, a flow distributor is arranged above the crystalline cooling rolls, and is used for pouring molten steel between the two crystalline cooling rolls to form a metal solution pool.
  • the two crystalline cooling rolls are respectively used to receive The base material strips conveyed by the two base material supply equipments, so that each base material strip is immersed into the metal solution pool along the corresponding crystalline cooling rolls and then rolled into a composite slab.
  • the secondary cooling and smoothing rolls are used for leveling.
  • Composite slabs conveyed from two crystalline cooling rolls rolling mill pinch rolls are used to convey the flat composite slabs, rolling mills are used to roll composite slabs conveyed from the mill pinch rolls to form composite slabs, and in-line cooling devices For cold
  • the composite sheet and strip conveyed from the rolling mill the straightener is used to straighten the cooled composite sheet, the cut-to-length shears are used to cut the straight-cut composite sheet and the coiler is used to take up the straightened sheet.
  • Composite strip is used to take up the straightened sheet.
  • a short-flow production method for producing a metal composite plate Based on the above-mentioned short-flow production device for producing a metal composite plate, the specific steps are as follows:
  • the base metal plate strip is sent to the induction heating device by the welding pinch roller for heating.
  • the induction heating device is protected by nitrogen or argon.
  • the heating temperature is 100 ⁇ 1200 °C and the heating speed is 1 ⁇ 50 °C / s;
  • the base metal melt contained in the distributor is injected between the two crystal cooling rolls to form a metal solution pool.
  • the surface of the metal solution pool is blown with argon to reduce the oxidation of the metal melt.
  • the temperature of the metal melt is higher than that of the mother.
  • the melting point of the sheet metal strip is 30 to 165 ° C.
  • the base metal sheet strip is heated at a speed of 0.1 to 30 m / min along the crystal cooling roll into the metal solution pool between the crystal cooling rolls, so that the base layer and the base material Strips are melted and compounded to form composite slabs;
  • the composite slab comes out of the crystalline cooling roll, it enters the secondary cooling and smoothing roll to re-cool and deform and flatten the surface of the composite slab.
  • the secondary cooling and smoothing roll is passed with cooling water or through Water spray cooling on all sides of the composite slab (C);
  • step 5 the following steps are further included:
  • the rolled composite strip (D) is cooled online by an on-line cooling device (12), the on-line cooling rate is 1 to 60 ° C / s, and the final cooling temperature is 50 to 600 ° C;
  • the composite strip (D) after being cooled on-line enters a straightening machine (13) for straightening. After straightening, it is cut by a cut-to-length shear (14) or cut-to-length or taken up by a coiler (15).
  • the base material sheet is one of the following materials: carbon steel, stainless steel, special alloy, titanium, and copper; the base metal is one of the following materials: carbon steel, stainless steel, special alloy, titanium, and copper.
  • a single-sided composite slab is formed from a single base metal strip from the surface of a crystalline cooling roll into a metal solution pool.
  • a double-sided composite slab is formed by entering two base material strips from the surfaces of two crystalline cooling rolls into a metal solution pool.
  • the temperature of the molten metal is higher than the melting point of the base material strip by 100 to 165 ° C.
  • the heated base material sheet (A) after step 2) enters the metal solution pool between the crystal cooling rolls at a speed of 0.1 to 10 m / min.
  • the heating temperature is determined by the thickness ratio of the base layer to the base material strip in the composite slab.
  • the heating temperature to thickness ratio satisfies one or more of the following:
  • the thickness ratio is 5 or less, and the heating temperature is 850 to 1200 ° C;
  • the thickness ratio is 5 to 10, and the heating temperature is 600 to 850 ° C;
  • the thickness ratio is 10 to 20, and the heating temperature is 300 to 600 ° C;
  • the thickness ratio is 20 or more, and the heating temperature is less than 300 ° C.
  • the production device and method for preparing metal composite plates in a short process according to the present invention combine the continuous casting, rolling, and heat treatment methods for single material production with the continuous and large-scale production of composite plates and strips, greatly Improved composite board production efficiency;
  • a short-process production device and method for preparing metal composite plates according to the present invention can produce single-sided or double-sided composite plates with different thickness specifications.
  • the base layer or multi-layer materials can be selected from a wide range, including carbon steel, stainless steel, special Alloy, titanium, copper, etc .;
  • the production device and method for preparing metal composite plates in a short process of the present invention realizes continuous casting and rolling of composite plates, saving energy consumption and reducing costs.
  • FIG. 1 is a schematic diagram of a specific structure of a device part of a production process and a method for manufacturing a metal composite panel in a short process of the present invention.
  • the present invention provides a short-process production device for preparing a metal composite board, which includes a coiler (1), a pinch roller (2), a shot blasting machine (3), a welding equipment (4), and a welding clip.
  • a base material supply equipment consisting of a feed roller (5) and an induction heating device (6), as well as a flow distributor (7), two crystal cooling rollers (8), a secondary cooling smoothing roller (9), and a rolling pinch roller ( 10) a rolling mill (11), an in-line cooling device (12), a leveler (13), and at least one of a cut-to-length shear (14) and a coiler (15).
  • the flow distributor (7) is arranged above the crystallization cooling roll (8), and is used for pouring molten steel between the two crystallization cooling rolls (8) to form a metal solution pool (B).
  • Two crystallization cooling rolls (8) are used to receive the base material plate strips (A) respectively transmitted from two base material supply equipments, so that each base material plate strip (A) follows the corresponding crystalline cooling rolls (8) After being immersed in the metal solution tank, it was rolled into a composite slab (C).
  • the secondary cooling levelling roll (9) is used to level the composite slab (C) conveyed from the two crystalline cooling rolls (8).
  • Mill pinch rolls (10) are used to convey the flat composite slab (C).
  • a rolling mill (11) is used to roll a composite slab (C) conveyed from a pinch roll (10) of the rolling mill to form a composite strip (D).
  • the in-line cooling device (12) is used for cooling the composite strip (D) transferred from the rolling mill (11).
  • a straightening machine (13) is used for straightening the cooled composite strip (D).
  • the winder (15) is used for winding the straightened composite strip (D).
  • the invention also provides a short-flow production method for producing a metal composite plate.
  • the specific steps are as follows:
  • the base material strip (A) is sent to the induction heating device (6) through the welding pinch roller (5) for heating.
  • the induction heating device is protected by nitrogen or argon.
  • the heating temperature is 100 ⁇ 1200 °C.
  • the heating speed is 1 ⁇ 50 °C / s for different thicknesses. Since the base material sheet is carbon steel, stainless steel, special alloy, titanium, copper and other metals, the heating purpose is to make the base material sheet and the double layer in the subsequent steps. Metal melts are easier to combine and promote metal melting on the surface of the base material;
  • the heating temperature can be determined by the thickness ratio of the base layer and the base material strip in the composite slab.
  • the heating temperature and thickness ratio satisfy one or more of the following: the thickness ratio is 5 or less, the heating temperature is 850 to 1200 ° C; the thickness ratio is 5 to 10, and the heating temperature is 600 ⁇ 850 ° C; the thickness ratio is 10-20, the heating temperature is 300-600 ° C; the thickness ratio is 20 or more, and the heating temperature is less than 300 ° C.
  • the base metal melt contained in the distributor (7) is injected between the two crystallization cooling rolls (8) to form a metal solution pool (B). Argon is blown on the surface of the metal solution pool to reduce the oxidation of the metal melt.
  • the temperature of the molten metal is 30 to 165 ° C higher than the melting point of the base material sheet. If the temperature of the metal solution is less than 30 or more than 165, it is not conducive to metallurgical bonding. Preferably, the temperature of the molten metal is 100-165 ° C higher than the melting point of the base material plate and strip.
  • the base metal can be carbon steel, stainless steel, special alloy, titanium, copper, etc.
  • the base material strip (A) After step 2) heating, the base material strip (A) enters between the crystal cooling rolls along the crystal cooling rolls at a speed of 0.1 to 30 m / min. Metal solution pool. If the base material plate and strip enter the metal solution pool between the crystallization cooling rolls at a speed of more than 30m / min, it is not conducive to interface bonding. Preferably, the base material strip (A) after heating in step 2) enters the metal solution pool between the crystal cooling rolls at a speed of 0.1 to 10 m / min.
  • the high-temperature metal solution is in contact with the relatively low-temperature surface of the base metal sheet, which causes the surface of the base material to melt slightly.
  • the metal solution as the base layer solidifies on the surface of the relatively low-temperature base material sheet, which realizes the Melt compound, the metal solution gradually solidifies under the action of the relatively low temperature base material strip and crystalline cooling roll, and is rolled into a composite slab (C), in which a single base material strip enters the metal from the surface of a crystalline cooling roll
  • C composite slab
  • the solution pool can produce single-sided composite slabs, and the two parent metal strips enter the metal solution pool from the surfaces of two crystalline cooling rolls, respectively, to produce double-sided composite slabs;
  • the composite slab (C) enters the secondary cooling and smoothing roller (9) after coming out of the crystalline cooling roller.
  • the composite slab is cooled again by the secondary cooling and smoothing roller and deforms and flattens the surface.
  • the secondary cooling and smoothing roller There is cooling water in the interior or cooling by spraying water on all sides of the composite slab (C), so that the composite slab that is not solidified is further solidified in this step;
  • step 5 the following steps may be included:
  • Rolled composite strip (D) can choose the on-line cooling of the on-line cooling device (12) according to the product performance requirements.
  • the on-line cooling speed is 1 ⁇ 60 °C / s and the final cooling temperature is 50 ⁇ 600 °C according to the thickness of the product.
  • the cooling process is mainly to meet the performance requirements of different types of composite boards;
  • the on-line cooled composite strip (D) enters a straightening machine (13) for straightening. After straightening, it is cut with a cut-to-length scissors (14) or cut-to-length or wound up by a winder (15) according to actual needs.
  • the present invention can further adjust the preheating temperature of the base material, the temperature of the molten metal, and the running speed of the base material strip after heating. Cooperate to achieve. Therefore, the present invention is applicable to the production of single-sided or double-sided composite boards by using various thicknesses of parent material sheets and strips.
  • the thickness range of the parent material sheet strips may be 2 to 100 mm, and the thickness of the composite sheet may be 0.5 to 100 mm.
  • the thickness range of the base material plate and strip may be 2-50 mm, and the thickness range of the composite plate may be 3-12 mm.
  • the 2mm thick 316L for the laminated material is provided by the parent material supply equipment on both sides, that is, the two parent material plate strips (A) are unrolled by the unwinder (1) and fed by the pinch roller (2).
  • the shot blasting machine (3) is used for surface cleaning.
  • the shot blasted steel plate enters the welding equipment (4) to complete the head and tail welding of the previous roll of steel and the next roll of steel to achieve continuous supply of 316L.
  • the welded multi-layer 316L steel plate is sent to the induction heating device (6) by the welding pinch roller (5) for heating.
  • the thickness ratio of the base metal to the base material strip is 2.5, and the heating temperature is 850 ° C. Protected by nitrogen, heating rate is 10 °C / s;
  • the composite slab (C) of the base layer Q235B and the cladding 316L steel plate is formed.
  • the composite slab (C) is a double-sided composite slab with a thickness of 2+. 10 + 2mm;
  • the composite slab (C) exits the crystallization cooling roll (8) and enters the secondary cooling and smoothing roll (9).
  • the internal cooling of the secondary cooling and smoothing roll (9) is cooled by cooling water.
  • the pinch roll (10) of the rolling mill feeds the composite slab (C) into the rolling mill (11), the rolling temperature is 1120 ° C, and the composite strip (D) is rolled into a thickness of 3.5 mm (0.5 + 2.5 + 0.5 mm).
  • the composite strip (D) is a double-sided composite strip, with a final rolling temperature of 1000 ° C.
  • the rolled composite strip (D) is cooled online by an online cooling device (12), with an open cooling temperature of 950 ° C and a final cooling temperature. 400 °C, cooling rate 45 °C / s;
  • the cooled composite strip (D) enters a straightening machine (13) for straightening, and the straightened composite strip is taken up by a winder (15).
  • the 3mm thick 304L for the laminated material is provided by the single-side base material supply equipment, that is, the base material plate (A) is unrolled by the unwinder (1) and sent to the shot blasting by the pinch roller (2).
  • the machine (3) cleans the surface, and the shot blasted steel plate enters the welding equipment (4) to complete the head-to-tail welding of the previous roll of steel and the next roll of steel to achieve continuous supply of 304L.
  • the welded multi-layer 304L steel plate is fed into the induction heating device (6) by the welding machine pinch roller (5) and heated.
  • the thickness ratio of the base metal to the base material strip is 2 and the heating temperature is 850 ° C.
  • the induction heating device Protected by nitrogen, heating rate is 10 °C / s;
  • the composite slab (C) enters the secondary cooling and smoothing roll (9) after exiting the crystallization cooling roll (8).
  • the secondary cooling and smoothing roll (9) is cooled by cooling water, and the composite slab (C) and the secondary The surface contact of the cooling and smoothing roller (9) further reduces the temperature, and at the same time, the secondary cooling and smoothing of the roller (9) reduces the surface pressure to improve the surface quality of the composite slab (C).
  • the pinch roll (10) of the rolling mill feeds the composite slab (C) into the rolling mill (11), the rolling temperature is 1160 ° C, and the composite strip (D) with a thickness of 3 mm (1 + 2 mm) is rolled.
  • (D) is a single-sided composite strip with a final rolling temperature of 980 ° C.
  • the rolled composite strip (D) is cooled online by an online cooling device (12), with an open cooling temperature of 950 ° C and a final cooling temperature of 420 ° C. The speed is 45 ° C / s.
  • the cooled composite strip (D) enters a straightening machine (13) for straightening, and the straightened composite strip is taken up by a winder (15).
  • the thick plate of the base material is sent to the induction heating device (6) for heating.
  • the thickness ratio of the base metal and the base material plate is 0.2.
  • the heating temperature is 1100 ° C.
  • the induction heating device is protected by nitrogen and the heating speed is 5 ° C / s.
  • the composite slab (C) is a single-sided composite slab with a thickness of 10 + 50mm;
  • the composite slab (C) enters the secondary cooling and smoothing roll (9) after exiting the crystallization cooling roll (8).
  • the secondary cooling and smoothing roll (9) is cooled by cooling water, and the composite slab (C) and the secondary The surface contact of the cooling and smoothing roller (9) further reduces the temperature, and at the same time, the secondary cooling and smoothing of the roller (9) reduces the surface pressure to improve the surface quality of the composite slab (C).
  • the pinch roll (10) of the rolling mill feeds the composite slab (C) into the rolling mill (11), the rolling temperature is 1160 ° C, and the composite slab (D) and composite slab (D) with a thickness of 12 mm (2 + 10 mm) are rolled.
  • the rolled composite plate (D) is cooled online by an on-line cooling device (12).
  • the opening cooling temperature is 780 ° C
  • the final cooling temperature is 500 ° C
  • the cooling rate is 25 ° C. / s.
  • the cooled composite plate (D) enters a straightening machine (13) for straightening, and the straightened composite plate is sent to the cold bed offline.
  • the 2mm thick 316L for the cladding material is provided by the base material supply equipment on both sides.
  • the thickness ratio of the base metal and the base material plate is 7, the heating temperature is 730 ° C, and the induction heating device is protected by nitrogen. Heating rate is 20 °C / s;
  • the composite slab (C) After the composite slab (C) exits the crystallization cooling roll (8), it enters the secondary cooling and smoothing roll (9) or water-cooled section. After the solidified composite slab (C) is further solidified, it enters the rolling mill at 1200 ° C ( 11), rolled into a composite strip (D) with a thickness of 10 mm (0.625 + 8.75 + 0.625 mm).
  • the production device and method for preparing a metal composite plate in a short process combine the continuous casting, rolling, and heat treatment means for the production of a single material with the continuous and large-scale production of the composite plate and strip, which greatly improves Production efficiency of composite board.
  • the invention can produce single-sided or double-sided composite boards with different thickness specifications, and the base layer or multi-layer material can be selected from a wide range, including carbon steel, stainless steel, special alloys, titanium, copper, etc.
  • the invention realizes continuous casting and rolling of composite plates, saves energy consumption and reduces costs.

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Abstract

一种短流程制备金属复合板的生产装置，包括由开卷机(1)、夹送辊(2)、抛丸机(3)、焊接设备(4)、焊接夹送辊(5)、感应加热装置(6)组成的母材供给设备，还包括布流器(7)、两个结晶冷却辊(8)、二次冷却平整辊(9)、轧机夹送辊(10)、轧机(11)、在线冷却装置(12)、矫直机(13)，以及定尺剪(14)与卷取机(15)中的至少一个。以及一种短流程制备金属复合板的生产方法。该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。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，实现了复合板连铸连轧，节约能耗，降低成本。

Description

一种短流程制备金属复合板的生产装置和方法 技术领域
本发明涉及钢铁冶金生产领域，尤其涉及一种短流程制备金属复合板的生产装置和方法，可生产不同材料组合的金属复合板产品。
背景技术
随着现代科技和国民经济的发展，用户对材料的性能提出了越来越苛刻的要求，单一的金属材料难以满足实际使用过程中的多方面性能要求，兼具功能性与结构性的金属复合材料应运而生，在满足用户个性化需求中发挥了重要作用，越来越被广大用户关注和使用。比较常见的制造复合板带的方法和设备有以下几种：
1.爆炸复合：把两块不同金属材料的接触面清理干净，界面加入炸药，利用爆炸产生的瞬时高温使其焊合，其结合不够充分，复合强度较低，适合单张、小批量生产；
2.轧制复合：把不锈钢和碳钢的复合表面清理干净，对齐后将四周抽真空焊接，然后经过加热轧制完成复合的制造方法，其结合充分，复合强度高，但生产效率低，适合单张、小批量生产；
3.离心浇铸复合：将碳钢和不锈钢钢水依次加入离心机，通过碳钢和不锈钢钢水先后能顾成环形复合板、管等，后进行矫直、加热、轧制等工序。
目前较为理想的复合工艺为轧制复合法，其生产的复合板界面实现完全冶金结合，结合强度高，产品性能优良，但组坯效率较低，其组坯过程包括多道工序，难以实现连续化、自动化和规模化生产，成本较高。近些年来出现了一些复合板连铸连轧、薄带连铸等连续化生产复合板的工艺和方法，如专利CN1714957A介绍了一种不同金属材料的复合板、带生产方法及设备，通过在同一部连铸机上使用2～3台碳钢或不锈钢钢水结晶器同时工作，实现不同金属材料单、双面复合板、带的连铸和连轧，其结晶器是由上下左右四条同步循环移动的钢带组成，改变了以往结晶器形式。其复层和基层金属都由结晶器中的液态金属凝固而成。
专利CN101780532A介绍了一种液相复合板坯连铸方法，通过将基层金属液、复层金属液分别注入结晶冷却辊与侧封板形成的辊式结晶器熔池中，熔池由中间隔板分割 成基层熔池和复层熔池，结晶器中形成的复合板坯经矫直定尺后形成。其缺点是复层、基层均由钢液同时凝固形成，其结合面控制难度较大，既要保持两种钢液不发生混液，也要保证两种材料不过冷结合不上。
专利CN104249135A介绍了一种复合板带的双辊薄带制备方法，通过在双辊薄带连铸的熔池中送入中间板带，使金属液在结晶冷却辊和中间板带的冷却作用下快速凝固，形成单面或双面复合板带；类似的，专利CN103495618A介绍了一种金属复合板的铸轧复合生产装置及方法，通过将待复合母材送入薄带连铸机的熔池中，熔池内待复合金属液体在母材表面凝固，出结晶器后二次冷却、平整、轧制，得到复合板带。这两种方法都是以薄带连铸技术为基础，制备的产品以薄规格带材为主，且凝固而成的复层厚度有限，对制备厚规格复层的复合板带不适宜。
专利CN105215307A介绍了一种双层复合板的生产工艺及设备，通过两个中间包、两个结晶器实现不同材料先后凝固制得复合板的方法。第一结晶器中凝固的铸坯进入第二个结晶器，使第二种材料依附于其表面凝固，经过二冷、轧制等工序生产出单面复合板。
专利CN1141962A介绍了一种反向凝固复合板带连续生产方法，把母带经开卷、除鳞、钝化后，在200～1000℃预热，进入结晶池内的熔融金属进行连续热复合。
以上专利都是为了提高复合板生产效率，实现连续生产而开发的新技术，也各自存在一些不足。
发明内容
本发明提出了一种短流程制备金属复合板的生产装置和方法，能提高复合板生产效率，降低生产成本。
本发明的一种短流程制备金属复合板的生产装置和方法，其装置部分和具体步骤如下所述：
一种短流程制备金属复合板的生产装置，包括由开卷机、夹送辊、抛丸机、焊接设备、焊接夹送辊、感应加热装置组成的母材供给设备，还包括布流器、两个结晶冷却辊、二次冷却平整辊、轧机夹送辊、轧机、在线冷却装置、矫直机以及，定尺剪与卷取机中的至少一个，其中，母材供给设备为两个，设置于两个结晶冷却辊的两侧，布流器设置于结晶冷却辊的上方，用于在两个结晶冷却辊之间浇注钢液以形成金属溶液池，两个结晶冷却辊用于分别接收从两个母材供给设备传送的母材板带，以使每条母材板带沿着相应的结晶冷却辊浸没入金属溶液池后被轧制成复合板坯，二次冷却平 整辊用于平整从两个结晶冷却辊传送的复合板坯，轧机夹送辊用于传送平整后的复合板坯，轧机用于轧制从轧机夹送辊传送的复合板坯以形成复合板带，在线冷却装置用于冷却从轧机传送的复合板带，矫直机用于矫直冷却后的复合板带，定尺剪用于定尺切割矫直后的复合板带，卷取机用于卷取矫直后的复合板带。
一种短流程制备金属复合板的生产方法，基于上述的一种短流程制备金属复合板的生产装置，其具体步骤如下：
1)将2～25mm厚的母材板带经开卷机开卷，而26～100mm厚的母材板带则直接经夹送辊送至抛丸机进行表面清理，抛丸后的母材板带进入焊接设备对母材板带的前后头尾进行焊接或直接进入下工序；
2)焊接后的母材板带经焊接夹送辊送入感应加热装置加热，感应加热装置内通氮气或氩气保护，加热温度在100～1200℃，加热速度为1～50℃/s；
3)将布流器中盛有的基层金属熔液注入两个结晶冷却辊之间，形成金属溶液池，金属溶液池表面吹氩气减少金属熔液的氧化，金属熔液的温度高于母材板带的熔点30～165℃，经过步骤2)加热后的母材板带以0.1～30m/min的速度沿结晶冷却辊进入结晶冷却辊之间的金属溶液池，以使基层与母材板带熔融复合，形成复合板坯；
4)复合板坯从结晶冷却辊出来后进入二次冷却平整辊，以进行再次冷却并对复合板坯的表面进行变形压平，其中，二次冷却平整辊内部通有冷却水或是通过对复合板坯(C)四面喷水冷却；
5)进一步冷却和平整后的复合板坯送入轧机夹送辊，再进入轧机轧制成0.5～100mm不同厚度规格的复合板带；
可选地，在步骤5)后还包括以下步骤：
6)轧制后的复合板带(D)通过在线冷却装置(12)在线冷却，在线冷却速度为1～60℃/s，终冷温度50～600℃；
7)在线冷却后的复合板带(D)进入矫直机(13)进行矫直，矫直后被定尺剪(14)定尺切割或被卷取机(15)卷取。
可选地，母材板带为如下材料中的一种：碳钢、不锈钢、特殊合金、钛和铜；基层金属为如下材料中的一种：碳钢、不锈钢、特殊合金、钛和铜。
可选地，通过单个母材板带从一个结晶冷却辊表面进入金属溶液池形成单面复合板坯。
可选地，通过两个母材板带分别从两个结晶冷却辊表面进入金属溶液池形成双面复合板坯。
可选地，金属熔液的温度高于母材板带的熔点100～165℃。
可选地，经过步骤2)加热后的母材板带(A)以0.1～10m/min的速度进入结晶冷却辊之间的金属溶液池。
可选地，在步骤2)中，加热温度由复合板坯中基层与母材板带的厚度比确定。
可选地，加热温度与厚度比满足以下一种或几种：
所述厚度比为5以下，所述加热温度为850～1200℃；
所述厚度比为5～10，所述加热温度为600～850℃；
所述厚度比为10～20，所述加热温度为300～600℃；
所述厚度比为20以上，所述加热温度小于300℃。
使用本发明的一种短流程制备金属复合板的生产装置和方法获得了如下有益效果：
1)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；
2)本发明的一种短流程制备金属复合板的生产装置和方法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；
3)本发明的一种短流程制备金属复合板的生产装置和方法实现了复合板连铸连轧，节约能耗，降低成本。
附图说明
图1为本发明的一种短流程制备金属复合板的生产装置和方法的装置部分的具体结构示意图。
图中：1-开卷机，2-夹送辊，3-抛丸机，4-焊接设备，5-焊接夹送辊，6-感应加热装置，7-布流器，8-结晶冷却辊，9-二次冷却平整辊，10-轧机夹送辊，11-轧机，12-在线冷却装置，13-矫直机，14-定尺剪，15-卷取机，A-母材板带，B-金属溶液池，C-复合板坯，D-复合板带。
具体实施方式
下面结合附图和实施例对本发明的一种短流程制备金属复合板的生产装置和方法做进一步的描述。
参考图1，本发明提供了一种短流程制备金属复合板的生产装置，包括由开卷机(1)、夹送辊(2)、抛丸机(3)、焊接设备(4)、焊接夹送辊(5)、感应加热装置(6)组成的母材供给设备，以及布流器(7)、两个结晶冷却辊(8)、二次冷却平整辊(9)、轧机夹送辊(10)、轧机(11)、在线冷却装置(12)、矫直机(13)以及，定尺剪(14)与卷取机(15)中的至少一个。
其中，母材供给设备为两个，设置于两个结晶冷却辊(8)的两侧。布流器(7)设置于结晶冷却辊(8)的上方，用于在两个结晶冷却辊(8)之间浇注钢液以形成金属溶液池(B)。两个结晶冷却辊(8)用于分别接收从两个母材供给设备传送的母材板带(A)，以使每条母材板带(A)沿着相应的结晶冷却辊(8)浸没入金属溶液池后被轧制成复合板坯(C)。二次冷却平整辊(9)用于平整从两个结晶冷却辊(8)传送的复合板坯(C)。轧机夹送辊(10)用于传送平整后的复合板坯(C)。轧机(11)用于轧制从轧机夹送辊(10)传送的复合板坯(C)以形成复合板带(D)。在线冷却装置(12)用于冷却从轧机(11)传送的复合板带(D)。矫直机(13)用于矫直冷却后的复合板带(D)。卷取机(15)用于卷取矫直后的复合板带(D)。
本发明还提供了一种短流程制备金属复合板的生产方法，其具体步骤如下：
1)将2～25mm厚的母材板带(A)经开卷机(1)开卷，而26～100mm厚的母材板带则直接经夹送辊(2)送至抛丸机(3)进行表面清理，抛丸后的母材板带可以进入焊接设备(4)对母材板带的前后头尾进行焊接，以实现母材板带的连续供板，也可以单块供板(厚规格)；
2)焊接后的母材板带(A)经焊接夹送辊(5)送入感应加热装置(6)加热，感应加热装置内通氮气或氩气保护，加热温度在100～1200℃，根据厚度不同其加热速度为1～50℃/s，由于母材板带为碳钢、不锈钢、特殊合金、钛、铜等金属，加热目的是为了使母材板带与后续的步骤中的复层金属熔液更易结合，促进母材表面金属熔化；
其中，加热温度可以由复合板坯中基层与母材板带的厚度比确定。可选地，加热温度与厚度比满足以下一种或几种：所述厚度比为5以下，所述加热温度为850～1200℃；所述厚度比为5～10，所述加热温度为600～850℃；所述厚度比为10～20，所述加热温度为300～600℃；所述厚度比为20以上，所述加热温度小于300℃。
3)将布流器(7)中盛有的基层金属熔液注入两个结晶冷却辊(8)之间，形成金属溶液池(B)，金属溶液池表面吹氩气减少金属熔液的氧化，金属熔液的温度高于母材板带的熔点30～165℃。若金属溶液的温度小于30或大于165，则不利于冶金结合。 优选地，金属熔液的温度高于母材板带的熔点100-165℃。基层金属可以是碳钢、不锈钢、特种合金、钛、铜等，经过步骤2)加热后的母材板带(A)以0.1～30m/min的速度沿结晶冷却辊进入结晶冷却辊之间的金属溶液池。若母材板带以大于30m/min的速度进入结晶冷却辊之间的金属溶液池，则不利于界面结合。优选地，经过步骤2)加热后的母材板带(A)以0.1～10m/min的速度进入结晶冷却辊之间的金属溶液池。
高温的金属溶液与相对低温的母材板带表面接触，使母材表面产生轻微熔化，同时，作为基层的金属溶液在相对低温的母材板带的表面凝固，实现基层与母材板带的熔融复合，金属溶液在相对低温的母材板带和结晶冷却辊的共同作用下逐步凝固，被轧制成复合板坯(C)，其中，单个母材板带从一个结晶冷却辊表面进入金属溶液池，可生产单面复合板坯，而两个母材板带分别从两个结晶冷却辊表面进入金属溶液池，则可生产双面复合板坯；
4)复合板坯(C)从结晶冷却辊出来后进入二次冷却平整辊(9)，复合板坯被二次冷却平整辊再次冷却并对表面进行变形压平，其中，二次冷却平整辊内部通有冷却水或是通过对复合板坯(C)四面喷水冷却，以使未凝固完全的复合板坯在本步骤中进一步的凝固；
5)进一步冷却和平整后的复合板坯送入轧机夹送辊(10)，再进入轧机(11)轧制成0.5～100mm不同厚度规格的复合板带(D)，轧制过程中复合界面得到进一步高温压缩变形，复合界面组织发生回复和再结晶，高温下的晶粒长大和元素扩散促进了界面的二次复合。
进一步地，在步骤5)后还可以包括以下步骤：
6)轧制后的复合板带(D)可以根据产品性能需要选择在线冷却装置(12)的在线冷却，根据产品厚度不同在线冷却速度为1～60℃/s，终冷温度50～600℃，该冷却工艺主要为满足不同品种复合板的性能要求；
7)在线冷却后的复合板带(D)进入矫直机(13)进行矫直，矫直后根据实际需要用定尺剪(14)定尺切割或被卷取机(15)卷取。
为提高复合效果，本发明可以根据母材板带的厚度情况，进而通过调节母材的预热温度、金属熔液温度以及加热后母材板带的运行速度三种手段中的一个或几个以配合实现。因此，本发明适用于通过多种厚度规格的母材板带以生产单面或双面复合板，母材板带的厚度范围可以为2～100mm，复合板的厚度范围可以为0.5～100mm。优选地，母材板带的厚度范围可以为2～50mm，复合板的厚度范围可以为3～12mm。
以下，进一步通过实施例详细说明本发明，但不应该基于该实施例的记载而局限 性地理解本发明。实施例1-双面复合板
1)用于复层材料的2mm厚的316L由两侧的母材供给设备分别提供，即两条母材板带(A)分别经开卷机(1)开卷后经夹送辊(2)送至抛丸机(3)进行表面清理，抛丸后的钢板进入焊接设备(4)完成前一卷钢板和后一卷钢板的头尾焊接，实现复层316L的连续供板；
2)焊接后的复层316L钢板经焊接夹送辊(5)送入感应加热装置(6)加热，基层金属与母材板带的厚度比为2.5，加热温度为850℃，感应加热装置内通氮气保护，加热速度为10℃/s；
3)将加热后的复层316L钢板(熔点为1445℃)以3m/min沿结晶冷却辊(8)表面从金属溶液池(B)穿过，将布流器(7)中的Q235B钢液浇铸至两个结晶冷却辊(8)之间的金属溶液池(B)内，浇注温度1610℃，熔池表面吹氩气减少钢液氧化，Q235B钢液与316L表面接触凝固，复层316L钢板表面轻微熔化，实现复层与基层的初步熔融复合，形成的基层Q235B和复层316L钢板的复合板坯(C)，其中该复合板坯(C)为双面复合板坯，厚度为2+10+2mm；
4)复合板坯(C)出结晶冷却辊(8)后进入二次冷却平整辊(9)段，二次冷却平整辊(9)内部通冷却水冷却，未凝固完全的复合板坯(C)与二次冷却平整辊(9)表面接触降温使其进一步凝固，同时二次冷却平整辊(9)给以微小的表面压下使复合板坯(C)表面质量得以改善；
5)轧机夹送辊(10)将复合板坯(C)送入轧机(11)，开轧温度1120℃，轧制成3.5mm厚度(0.5+2.5+0.5mm)的复合板带(D)，复合板带(D)为双面复合板带，终轧温度1000℃,轧制后的复合板带(D)通过在线冷却装置(12)进行在线冷却，开冷温度950℃，终冷温度400℃，冷却速度45℃/s；
6)冷却后的复合板带(D)进入矫直机(13)进行矫直，矫直后的复合板带被卷取机(15)卷取。
实施例2-单面复合板
1)用于复层材料的3mm厚的304L由单侧的母材供给设备提供，即母材板带(A)分别经开卷机(1)开卷后经夹送辊(2)送至抛丸机(3)进行表面清理，抛丸后的钢板进入焊接设备(4)完成前一卷钢板和后一卷钢板的头尾焊接，实现复层304L的连续供板。
2)焊接后的复层304L钢板经焊机夹送辊(5)送入感应加热装置(6)加热，基层金属与母材板带的厚度比为2，加热温度为850℃，感应加热装置内通氮气保护，加 热速度为10℃/s；
3)将加热后的复层304L钢板(熔点为1455℃)以2m/min沿结晶冷却辊(8)表面从金属溶液池(B)穿过，将布流器(7)中的Q345B钢液浇铸至两个结晶冷却辊(8)之间的金属溶液池(B)内，浇注温度1610℃，熔池表面吹氩气减少钢液氧化，Q345B钢液与304L表面接触凝固，复层304L钢板表面轻微熔化，实现复层与基层的初步熔融复合，形成的基层Q345B与复层304L钢板的复合板坯(C)，其中该复合板坯(C)为单面复合板坯，厚度为3+6mm；
4)复合板坯(C)出结晶冷却辊(8)后进入二次冷却平整辊(9)段，二次冷却平整辊(9)内部通冷却水冷却，复合板坯(C)与二次冷却平整辊(9)表面接触进一步降温，同时二次冷却平整辊(9)给以微小的表面压下使复合板坯(C)表面质量得以改善。
5)轧机夹送辊(10)将复合板坯(C)送入轧机(11)，开轧温度1160℃，轧制成3mm厚度(1+2mm)的复合板带(D)，复合板带(D)为单面复合板带，终轧温度980℃,轧制后的复合板带(D)通过在线冷却装置(12)进行在线冷却，开冷温度950℃，终冷温度420℃，冷却速度45℃/s。
6)冷却后的复合板带(D)进入矫直机(13)进行矫直，矫直后的复合板带被卷取机(15)卷取。
实施例3-单面复合管线钢板
1)用于复层材料的50mm厚的304L由单侧的母材供给设备提供，即母材厚板(A)经夹送辊(2)送至抛丸机(3)进行表面清理并抛丸。
2)母材厚板送入感应加热装置(6)加热，基层金属与母材板带的厚度比为0.2加热温度为1100℃，感应加热装置内通氮气保护，加热速度为5℃/s；
3)将加热后的复层304L钢板以1m/min沿结晶冷却辊(8)表面从金属溶液池(B)穿过，将布流器(7)中的X70管线钢钢液浇铸至两个结晶冷却辊(8)之间的金属溶液池(B)内，厚度10mm，浇注温度1550℃，熔池表面吹氩气减少钢液氧化，X70钢液与600℃的304L表面接触凝固，复层304L钢板表面轻微熔化，实现复层与基层的初步熔融复合，形成的基层X70与复层304L钢板的复合板坯(C)，其中该复合板坯(C)为单面复合板坯，厚度为10+50mm；
4)复合板坯(C)出结晶冷却辊(8)后进入二次冷却平整辊(9)段，二次冷却平整辊(9)内部通冷却水冷却，复合板坯(C)与二次冷却平整辊(9)表面接触进一步降温，同时二次冷却平整辊(9)给以微小的表面压下使复合板坯(C)表面质量得 以改善。
5)轧机夹送辊(10)将复合板坯(C)送入轧机(11)，开轧温度1160℃，轧制成12mm厚度(2+10mm)的复合板(D)，复合板(D)为单面复合管线板，终轧温度980℃,轧制后的复合板(D)通过在线冷却装置(12)进行在线冷却，开冷温度780℃，终冷温度500℃，冷却速度25℃/s。
6)冷却后的复合板(D)进入矫直机(13)进行矫直，矫直后的复合板送至冷床下线。
实施例4-双面复合板
1)用于复层材料的2mm厚的316L由两侧的母材供给设备分别提供，基层金属与母材板带的厚度比为7，加热温度为730℃，感应加热装置内通氮气保护，加热速度为20℃/s；
2)将加热后的复层316L钢板(熔点为1445℃)以1m/min沿结晶冷却辊(8)表面从金属溶液池(B)穿过，将布流器(7)中的SCM435钢液浇铸至两个结晶冷却辊(8)之间的金属溶液池(B)内，浇注温度1540℃，形成厚度为2+28+2mm的基层SCM435和复层316L钢板的复合板坯(C)；
3)复合板坯(C)出结晶冷却辊(8)后进入二次冷却平整辊(9)段或水冷段，未凝固完全的复合板坯(C)进一步凝固后，在1200℃进入轧机(11)，轧成10mm厚度(0.625+8.75+0.625mm)的复合板带(D)。
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。

Claims (10)

  1. 一种短流程制备金属复合板的生产装置，包括由开卷机(1)、夹送辊(2)、抛丸机(3)、焊接设备(4)、焊接夹送辊(5)、感应加热装置(6)组成的母材供给设备，其特征在于，包括：布流器(7)、两个结晶冷却辊(8)、二次冷却平整辊(9)、轧机夹送辊(10)、轧机(11)、在线冷却装置(12)、矫直机(13)以及，定尺剪(14)与卷取机(15)中的至少一个，其中，所述母材供给设备为两个，设置于两个所述结晶冷却辊(8)的两侧，所述布流器(7)设置于所述结晶冷却辊(8)的上方，用于在两个结晶冷却辊(8)之间浇注钢液以形成金属溶液池(B)，两个所述结晶冷却辊(8)用于分别接收从两个所述母材供给设备传送的母材板带(A)，以使每条所述母材板带(A)沿着相应的结晶冷却辊(8)浸没入所述金属溶液池后被轧制成复合板坯(C)，所述二次冷却平整辊(9)用于平整从两个所述结晶冷却辊(8)传送的所述复合板坯(C)，轧机夹送辊(10)用于传送平整后的所述复合板坯(C)，所述轧机(11)用于轧制从轧机夹送辊(10)传送的复合板坯(C)以形成复合板带(D)，所述在线冷却装置(12)用于冷却从所述轧机(11)传送的复合板带(D)，所述矫直机(13)用于矫直冷却后的所述复合板带(D)，所述(14)定尺剪用于定尺切割矫直后的所述复合板带(D)，所述卷取机(15)用于卷取矫直后的所述复合板带(D)。
  2. 一种短流程制备金属复合板的生产方法，基于上述权利要求1所述的一种短流程制备金属复合板的生产装置，其具体步骤如下：
    1)将2～25mm厚的母材板带(A)经开卷机(1)开卷，而26～100mm厚的母材板带则直接经夹送辊(2)送至抛丸机(3)进行表面清理，抛丸后的母材板带进入焊接设备(4)对母材板带的前后头尾进行焊接或直接进入下工序；
    2)焊接后的母材板带(A)经焊接夹送辊(5)送入感应加热装置(6)加热，感应加热装置内通氮气或氩气保护，加热温度在100～1200℃，加热速度为1～50℃/s；
    3)将布流器(7)中盛有的基层金属熔液注入两个结晶冷却辊(8)之间，形成金属溶液池(B)，金属溶液池表面吹氩气减少金属熔液的氧化，金属熔液的温度高于母材板带的熔点30～165℃，经过步骤2)加热后的母材板带(A)以0.1～30m/min的速度沿结晶冷却辊进入结晶冷却辊之间的金属溶液池，以使基层与母材板带熔融复合，形成复合板坯(C)；
    4)复合板坯(C)从结晶冷却辊出来后进入二次冷却平整辊(9)，以进行再次冷却并对所述复合板坯(C)的表面进行变形压平，其中，二次冷却平整辊内部通有冷却水或是通过对复合板坯(C)四面喷水冷却；
    5)进一步冷却和平整后的复合板坯送入轧机夹送辊(10)，再进入轧机(11)轧制成0.5～100mm不同厚度规格的复合板带(D)。
  3. 如权利要求2所述的短流程制备金属复合板的生产方法，其特征在于，在步骤5)后还包括以下步骤：
    6)轧制后的复合板带(D)通过在线冷却装置(12)在线冷却，在线冷却速度为1～60℃/s，终冷温度50～600℃；
    7)在线冷却后的复合板带(D)进入矫直机(13)进行矫直，矫直后被定尺剪(14)定尺切割或被卷取机(15)卷取。
  4. 如权利要求2所述的短流程制备金属复合板的生产方法，其特征在于，所述母材板带为如下材料中的一种：碳钢、不锈钢、特殊合金、钛和铜；所述基层金属为如下材料中的一种：碳钢、不锈钢、特殊合金、钛和铜。
  5. 如权利要求2所述的短流程制备金属复合板的生产方法，其特征在于，通过单个母材板带从一个所述结晶冷却辊表面进入所述金属溶液池形成单面复合板坯。
  6. 如权利要求2所述的短流程制备金属复合板的生产方法，其特征在于，通过两个母材板带分别从两个所述结晶冷却辊表面进入所述金属溶液池形成双面复合板坯。
  7. 如权利要求2所述的短流程制备金属复合板的生产方法，其特征在于，金属熔液的温度高于母材板带的熔点100～165℃。
  8. 如权利要求2所述的短流程制备金属复合板的生产方法，其特征在于，经过步骤2)加热后的母材板带(A)以0.1～10m/min的速度进入结晶冷却辊之间的金属溶液池。
  9. 如权利要求2所述的短流程制备金属复合板的生产方法，其特征在于，在步骤 2)中，加热温度由复合板坯中基层与母材板带的厚度比确定。
  10. 如权利要求9所述的短流程制备金属复合板的生产方法，其特征在于，所述加热温度与所述厚度比满足以下一种或几种：
    所述厚度比为5以下，所述加热温度为850～1200℃；
    所述厚度比为5～10，所述加热温度为600～850℃；
    所述厚度比为10～20，所述加热温度为300～600℃；
    所述厚度比为20以上，所述加热温度小于300℃。
PCT/CN2019/092529 2018-06-29 2019-06-24 一种短流程制备金属复合板的生产装置和方法 WO2020001396A1 (zh)

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KR1020207036605A KR102483849B1 (ko) 2018-06-29 2019-06-24 금속 클래드 플레이트를 단기 공정으로 제조하는 제조장치 및 방법
EP19824655.5A EP3797888B1 (en) 2018-06-29 2019-06-24 Production apparatus and method for preparing metal clad plate in short process

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