CN105107842A - Method and device for producing thick plate and super-thick plate by reducing and roll cladding - Google Patents
Method and device for producing thick plate and super-thick plate by reducing and roll cladding Download PDFInfo
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- CN105107842A CN105107842A CN201510589253.1A CN201510589253A CN105107842A CN 105107842 A CN105107842 A CN 105107842A CN 201510589253 A CN201510589253 A CN 201510589253A CN 105107842 A CN105107842 A CN 105107842A
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Abstract
The invention discloses a method and device for producing a thick plate and a super-thick plate by reducing and roll cladding, and through the adoption of the method and the device, a high-quality thick plate and a high-quality super-thick plate can be produced with high efficiency at low cost. The method comprises the following steps: heating and descaling steel billets; reducing scale on the surfaces of the steel billets; positioning and combining the steel billets; conducting roll cladding of the steel billets; and rolling the clad steel billets multiple times. The device adopted by the method comprises an inlet section, a sealed section furnace body, a reducing section furnace body, a combining section furnace body and a roll cladding section. Two or more continuous casting billets or rolling billets are adopted to be subjected to high-temperature reducing and spliced combination and then directly roll-clad by a rolling mill to produce the thick plate and the super-thick plate. Compared with a traditional method for producing a thick plate and a super-thick plate by adopting mould cast steel ingots, electroslag remelting ingots and vacuum roll cladding, the method disclosed by the invention has the advantages that the oxidizing loss is small, the surface treatment and the billet combination are simple, the compression ratio is high, the super-thick plate can be produced on a simply improved traditional thick plate production line, the improvement cost is low, energy conservation and environment protection are realized, the production efficiency is high, and the product quality is good.
Description
Technical field
The invention belongs to the steel plate production field of metallurgy industry, particularly relate to a kind of Rolling compund that reduces and produce method and the device thereof of slab and special heavy plate.
At steel industry, the steel plate generally thickness being in 25mm-100mm is called slab, and steel plate thickness being greater than 100mm is called special heavy plate.Slab and special heavy plate are usually used in the specific use such as armour plate, large mold steel of atomic power station, offshore platform, Turbo-generator Set, warship and tank, be the product that a kind of quality requirement is higher, added value is higher, there is the very large market demand and application prospect.In slab and special heavy plate production process, in order to ensure the internal soundness of sheet material, usually require higher compression ratio, compression ratio is generally not less than 6.Meanwhile, compression ratio is higher, and sheet material internal soundness is better.Because finished product sheet metal thickness is thicker, internal soundness requires higher, and the thickness of large compression ratio inevitable requirement material base is also larger.At present, high-quality slab is produced and the raw materials used slab of special heavy plate mainly adopts static ingot and electroslag remelting steel ingot.When adopting die casting to produce slab and special heavy plate ingot blank used, because the sectional dimension of ingot casting is comparatively large, setting rate slows down, and cause ingot blank internal segregation serious, lumber recovery is lower.When adopting electroslag remelting process to produce slab and special heavy plate ingot blank used, ingot composition is relatively more even, organize also dense, but this technique exists the shortcomings such as production efficiency is low, power consumption is high, production cost is high.Patent document CN101773931A (a kind of method of rolling special thick board by means of vacuum compositing), the method that heating rolling produces special heavy plate is carried out again after CN101439348A (a kind of process of producing special heavy plate) and CN101590596A (a kind of method of manufacturing extra-thick plate blank by accumulative roller welding process) etc. describes a kind of base of compound under vacuum conditions, compared with static ingot, these methods solve the defects such as large-scale static ingot heart portion's segregation and tissue looseness, compared with electroslag remelting steel ingot, these methods improve production technology productive rate, reduce power consumption, reduce equipment investment, but also there is blank surface process in these methods and assembly welding procedure is loaded down with trivial details, the time that the blank of combination is heated to rolling temperature from normal temperature is oversize, energy consumption is higher, the shortcomings such as oxidization burning loss is more.
Summary of the invention
The invention provides a kind of Rolling compund that reduces and produce method and the device thereof of slab and special heavy plate, can high efficiency, produce high-quality slab and special heavy plate material at low cost.
A kind of method of reducing Rolling compund production slab and special heavy plate provided by the invention comprises the following steps:
A. heating steel billet and de-scaling: with common continuous casting steel billet or hot rolling steel billet for raw material, the heating process be placed in by steel billet in conventional heater for rolling steel is conveniently heated to 950 DEG C ~ 1350 DEG C, and the steel billet of heating utilizes conventional high pressure water descaling device removing billet surface because adding thermogenetic iron scale after coming out of the stove;
B. iron oxide on surface of billet steel skin reduction: the steel billet after high-pressure water descaling is transported in reduction section body of heater, reducibility gas is passed in reduction section body of heater, through the reduction reaction of 1 ~ 30min, secondary being reduced property of the iron scale gas reduction of billet surface becomes metallic iron;
C. the location of steel billet and combination: scale on surface is reduced into the steel billet conveying of metallic iron in the combined segment body of heater being full of inert gas, in combined segment body of heater, utilize roller-way by after first piece of steel billet conveying to the location, position of specifying, hold up frame by steel billet and clamp steel billet, and steel billet is held up, be placed in the top of conveyor roller, now, second block of steel billet is transported to immediately below first block of steel billet of picking-up, hold up frame to fall with by the first block of steel billet held up, drop on above second block of steel billet, be stacked together with second block of steel billet, complete location and the combination of two blocks of steel billets, according to said method the steel billet of the 3rd piece and more than three pieces can be stacked together,
D. the Rolling compund of steel billet: two pieces that combine or three or more steel billet conveying are to combined segment body of heater exit position, and adjustment mill roll-gap, to suitable degree, utilizes guide and guards that combination blank is directly imported mill roll-gap and is rolled pressing;
E. the multi-pass rolling of composite steel billet: combination steel billet just can tentatively be combined with each other after Rolling compund, form composite steel billet, for eliminating compound interface, further raising interface bond strength, composite steel billet is made to form a complete entirety, recycling milling train carries out conventional multi-pass controlled rolling, till reaching satisfactory thickness and performance to composite steel billet.
The device that a kind of method of reducing Rolling compund production slab and special heavy plate adopts, this device comprises: entrance, seal section body of heater, reduction section body of heater, combined segment body of heater and Rolling compund section, described entrance is in original position, and then be seal section body of heater, centre is reduction section body of heater, being combined segment body of heater after reduction section body of heater, is finally Rolling compund section, all adopts connecting bolt to be tightly connected between each section, adopt seal section baffle plate (10) to separate between described seal section body of heater and reduction section body of heater, between reduction section body of heater and combined segment body of heater, adopt reduction section baffle plate (15) to separate, described entrance is led mouth (3) by entrance deflector roll (2) and inlet seal and is formed, steel billet (1) is imported inlet seal and leads mouth (3) by entrance deflector roll (2), and coordinates with steel billet (1) and seal the inert gas in seal section body of heater, described seal section body of heater is by seal section furnace shell (7), conveyor roller (8) in stove, seal section inert gas entrance (9), heat-insulation layer (5), heating element heater (6) and seal section baffle plate (10) composition, seal section furnace interior filling inert gas, the reducibility gas of reduction section furnace interior is intercepted and sealed, seal section furnace shell (7) adopts Plate Welding to make, the inner refractory material that adopts does heat-insulation layer (5), seal section inert gas entrance (9) is arranged on seal section furnace shell (7) top, in heating element heater (6) and stove, conveyor roller (8) is arranged in seal section body of heater, heating element heater (6) controls fire box temperature, in stove, conveyor roller (8) completes steel billet (1) transport in body of heater, the opening of the seal section baffle plate (10) between seal section body of heater and reduction section body of heater is identical with steel billet (1) cross dimensions, seal section baffle plate (10) coordinates the gas intercepted in reduction section body of heater to pass through seal section body of heater with steel billet (1), seal section body of heater length is 2-30 rice, be highly 0.05-3.0 rice, seal section body of heater and inlet seal are led between mouth (3) and are adopted connecting bolt compact siro spinning technology, described reduction section body of heater is by reduction section furnace shell (12), reducing gas entrance (14), reducing gas outlet (11), heat-insulation layer (5), heating element heater (6), conveyor roller (8) in stove, reduction section baffle plate (15) and temperature element (13) composition, reduction section furnace interior is full of reducibility gas, the scale reduction on steel billet (1) surface is become metallic iron, temperature in reduction section body of heater is controlled by heating element heater (6), the traveling of blank in body of heater is controlled by conveyor roller in stove (8), reduction section furnace shell (12) adopts Plate Welding to make, the inner refractory material that adopts does heat-insulation layer (5), reducing gas entrance (14) is arranged on reduction section furnace shell top, reducing gas outlet (11) is arranged on reduction section furnace shell bottom, reducibility gas is entered by reducing gas entrance (14), export (11) by reducing gas to discharge, the opening of the reduction section baffle plate (15) between reduction section body of heater with combined segment body of heater is identical with steel billet (1) cross dimensions, reduction section baffle plate (15) coordinates the gas intercepted in reduction section body of heater to pass through combined segment body of heater with steel billet (1), reduction section body of heater length is 5-100 rice, be highly 0.05-3.0 rice, connecting bolt compact siro spinning technology is adopted between reduction section body of heater and seal section body of heater, described combined segment body of heater is by combined segment furnace shell (16), chuck (17), leading screw (18), combined segment inert gas entrance (19), hydraulic cylinder (20), dovetail groove (21), push rod (22), backstay (23), heat-insulation layer (5), conveyor roller (8) composition in heating element heater (6) and stove, combined segment furnace interior filling inert gas, temperature in combined segment body of heater is controlled by heating element heater (6), the traveling of blank in body of heater is controlled by conveyor roller in stove (8), combined segment furnace shell (16) adopts Plate Welding to make, the inner refractory material that adopts does heat-insulation layer (5), backstay (23) is arranged on combined segment lower portion of furnace body, conveyor roller (8) plane in stove is protruded in backstay (23) upper end, steel billet is stoped to travel forward, steel billet (1) head is positioned, when backstay (23) upper end returns to below conveyor roller in stove (8) plane, steel billet (1) after then allowing combination runs forward, described leading screw (18) turns clockwise, make the end of push rod (22) slide in opposition in dovetail groove (21), chuck (17) is driven to clamp the side of steel billet (1), and make steel billet (1) automatic centering, hydraulic cylinder (20) moves upward, promote dovetail groove (21) together with push rod (22), chuck (17) and steel billet (1) move upward together, next block steel billet (1) is transported to by below the steel billet (1) that holds up by conveyor roller in stove (8), through backstay (23) to head location, now, hydraulic cylinder (20) declines, dropped on next block steel billet (1) by the steel billet (1) held up, leading screw (18) inhour rotates, chuck (17) decontrols steel billet (1), complete the stack combinations of two pieces of steel billets (1) and head and edge alignment, inert gas enters in combined segment body of heater from combined segment inert gas entrance (19), steel billet (1) surface after combining is prevented again to be oxidized, and air seal is carried out to reduction section body of heater, combined segment body of heater length is 2-50 rice, be highly 0.1-8.0 rice, connecting bolt compact siro spinning technology is adopted between combined segment body of heater and reduction section body of heater, described Rolling compund section leads mouth (24) by exit seal and milling train (25) forms, exit seal is led between mouth (24) and combined segment body of heater and is adopted connecting bolt to be tightly connected, exit seal is led mouth (24) outlet and is close on the working roll of milling train (25), inert gas in combined segment body of heater is sealed, and the steel billet (1) of combination is correctly derived body of heater, import the roll gap of milling train (25), exit seal is led mouth (24) and is adopted heat resisting steel manufacture, milling train (25) is identical with conventional heavy plate mill, but need larger opening degree and larger single pass drafts, effect is combined with each other by combination billet rolling.
The substantive distinguishing features that the present invention gives prominence to and marked improvement are mainly reflected in:
(1) compared with the method for existing employing static ingot Rolling Production special heavy plate, the steel billet that the present invention adopts is continuous casting billet or rolled blank, internal soundness is better than static ingot, and lumber recovery and production efficiency are all higher than static ingot, and production cost is lower than static ingot;
(2) compared with producing the method for special heavy plate with existing vacuum assembly Rolling compund, the present invention is before assembly Rolling compund, the heating of steel billet completes in common flame furnace according to existing heating process, and be monolithic Double-side Heating, and firing rate is higher than the polylith blank after vacuum assembly, therefore, the efficiency of heating surface is high, and oxidization burning loss is few, and heating quality is good, high temperature shove charge can be realized, be convenient to save energy and reduce the cost;
(3) compared with producing the method for special heavy plate with existing vacuum assembly Rolling compund, the present invention is when processing iron oxide on surface of billet steel skin, first utilize the water under high pressure of existing routine will add thermogenetic once oxidation iron sheet to destroy, and then utilize reducibility gas by the secondary scale reduction of billet surface, therefore, the technique of process iron oxide on surface of billet steel skin of the present invention is simple and quick, without dust and noise pollution, do not need special surface finish and cleaning equipment, production efficiency is high, energy-conserving and environment-protective, surface is entrapped contaminants not, compound interface is clean, interface bond strength improves, simultaneously, recovery rate of iron improves, reduce production cost,
(4) compared with producing the method for special heavy plate with existing vacuum assembly Rolling compund, the present invention can realize the combination of the polylith blank of more than two pieces and two pieces in blank stack combinations process, therefore, fundamentally solve continuous casting billet and produce the inadequate problem of slab compression ratio, thinner continuous casting billet can be utilized to produce slab and special heavy plate, the refinement tissue of sheet material inside, improves the uniformity of sheet material interior tissue, improves product quality;
(5) compared with the method for existing employing static ingot Rolling Production special heavy plate, the present invention can realize the combination of the polylith blank of more than two pieces and two pieces in blank stack combinations process, thinner bloom production slab and special heavy plate can be utilized, fundamentally to eliminate when special heavy plate produced by thick static ingot compression ratio not, the problem such as component segregation and internal defect, eliminate sheet material internal segregation problem, improve the uniformity of sheet material interior tissue, improve product quality;
(6) be rolled with existing employing electroslag remelting steel ingot compared with the method for producing special heavy plate, process of the present invention is higher than traditional electroslag remelting production technology efficiency, power consumption is low, production cost is low, and lumber recovery is high again;
(7) slab of the present invention utilizes common flame furnace to heat out, rolling equipment is substantially identical with existing equipment, only need set up reduction combination unit and can meet production requirement on existing equipment basis, therefore, technical scheme proposed by the invention produces special heavy plate after being particularly suitable for the transformation of existing hot rolling line;
(8) Rolling compund process is by the powerful rolling pressing of milling train, and along with the rolling that continues of several passage below, the total deformation of composite plate blanks is large, interface room machine press-in and high temperature under atoms permeating effect significantly strengthen, therefore can eliminate compound interface, improve the quality of products.
Accompanying drawing explanation
Fig. 1 is the apparatus structure schematic diagram that a kind of method of reducing Rolling compund production slab and special heavy plate adopts.
Fig. 2 a kind ofly reduces combined segment body of heater steel billet in device that method that Rolling compund produces slab and special heavy plate adopts and is held up the A-A sectional view of position.
In figure, the implication of each mark is as follows:
1 steel billet; 2 entrance deflector rolls; 3 inlet seals lead mouth; 4 connecting bolts; 5 heat-insulation layers; 6 heating element heaters; 7 seal section furnace shells; Defeated roller-way is run in 8 stoves; 9 seal section inert gas entrances; 10 seal section baffle plates; 11 reducing gas outlets; 12 reduction section furnace shells; 13 temperature elements; 14 reducing gas entrances; 15 reduction section baffle plates; 16 combined segment furnace shells; 17 chucks; 18. leading screws; 19 combined segment inert gas entrances; 20 hydraulic cylinders; 21 dovetail grooves; 22 push rods; 23 backstays; 24 exit seals lead mouth; 25 milling trains.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1 and Figure 2, a kind of Rolling compund that reduces produces method and the device thereof of slab and special heavy plate, to reduce the special heavy plate that Rolling compund prepares the 16Mn (5 tons) of 100*2000*3200mm, the specific embodiment of the present invention is described.
Get the continuous casting billet 5 pieces being of a size of 170mm*1600mm*2000mm, common flame furnace is adopted to be heated to 1180 DEG C, water under high pressure is utilized to remove the raw iron scale of stove of billet surface, then, pinched by entrance deflector roll 2 by steel billet 1, lead mouth 3 through inlet seal and enter in seal section body of heater, furnace temperature is heated to 1200 DEG C by the heating element heater 6 in seal section body of heater, nitrogen is filled with in seal section body of heater by seal section inert gas entrance 9, is discharged by the air in whole burner hearth, steel billet 1 is transported in reduction section body of heater by conveyor roller in stove 8, furnace temperature is heated to 1200 DEG C by the heating element heater 6 in reduction section body of heater, reducing gas hydrogen is filled with in reduction section body of heater by reducing gas entrance 14, jet on steel billet 1 surface, the secondary scale reduction on steel billet 1 surface is become metallic iron, and the steam after reduction reaction discharges reduction section body of heater from reducing gas outlet 11, steel billet 1 is transported to stop 1-30min in reduction section body of heater after in combined segment body of heater, furnace temperature is heated to 1200 DEG C by the heating element heater 6 in combined segment body of heater, inert gas argon gas is filled with in combined segment body of heater by combined segment inert gas entrance 19, steel billet 1 surface after reducing is prevented again to be oxidized, backstay 23 rises, upper end exceedes the roll surface of conveyor roller 8 in stove, stop after head contact to backstay 23 when steel billet 1 runs forward, leading screw 18 turns clockwise, make the end of push rod 22 slide in opposition in dovetail groove 21, chuck 17 is driven to clamp the side of steel billet 1, make steel billet 1 automatic centering, now, hydraulic cylinder 20 moves upward, promote dovetail groove 21 together with push rod 22, chuck 17 moves upward together with steel billet 1, second block of steel billet 1 is transported to by below the steel billet 1 that holds up by conveyor roller in stove 8, through backstay 23 pairs of head locations, now, hydraulic cylinder 20 declines, dropped on second block of steel billet by the steel billet 1 held up, leading screw 18 inhour rotates, chuck 17 decontrols steel billet 1, complete the stack combinations of two blocks of steel billets and head and edge alignment, repeat above-mentioned action by the 3rd piece, 4th piece and the 5th block of steel billet are stacked together, the five blocks of steel billets combined are transported to combined segment body of heater exit position, the roll gap of milling train 25 is adjusted to 680mm (drafts of the first passage controls between 120-250mm), leads mouth 24 through exit seal and combination blank is directly imported milling train 25 be rolled pressing, blank recycling milling train through first compound proceeds transverse rolling and axial rolling distortion, till meeting the requirements of finished product thickness 100mm and width 2000mm, then can obtain through multiple length cutting the special heavy plate that finished product is 100*2000*3200mm.
Above-mentioned detailed description of the invention shows, two or more than two continuous casting billet can be utilized after high temperature reduction and stack combinations by milling train Direct Rolling laminating production slab and special heavy plate by this method and device, compare with the method for special heavy plate with vacuum rolling laminating production slab with existing employing static ingot, electroslag remelting steel ingot, oxidization burning loss of the present invention is few, surface treatment and blank combination are simply, compression ratio is large, special heavy plate can be produced after existing plate production line is simply transformed, improvement cost is low, energy-conserving and environment-protective, production efficiency is high, good product quality.It should be noted that, embodiment is only some exemplary applications of the inventive method and device, can not be interpreted as the restriction to the claims in the present invention protection domain.
Claims (2)
1. the Rolling compund that reduces produces a method for slab and special heavy plate, it is characterized in that the method comprises the following steps:
A. heating steel billet and de-scaling: with common continuous casting steel billet or hot rolling steel billet for raw material, the heating process be placed in by steel billet in conventional heater for rolling steel is conveniently heated to 950 DEG C-1350 DEG C, and the steel billet of heating utilizes conventional high pressure water descaling device removing billet surface because adding thermogenetic iron scale after coming out of the stove;
B. iron oxide on surface of billet steel skin reduction: the steel billet after high-pressure water descaling is transported in reduction section body of heater, reducibility gas is passed in reduction section body of heater, through the reduction reaction of 1 ~ 30min, secondary being reduced property of the iron scale gas reduction of billet surface becomes metallic iron;
C. the location of steel billet and combination: scale on surface is reduced into the steel billet conveying of metallic iron in the combined segment body of heater being full of inert gas, in combined segment body of heater, utilize roller-way by after first piece of steel billet conveying to the location, position of specifying, hold up frame by steel billet and clamp steel billet, and steel billet is held up, be placed in the top of conveyor roller, now, second block of steel billet is transported to immediately below first block of steel billet of picking-up, hold up frame to fall with by the first block of steel billet held up, drop on above second block of steel billet, be stacked together with second block of steel billet, complete location and the combination of two blocks of steel billets, according to said method the steel billet of the 3rd piece and more than three pieces can be stacked together,
D. the Rolling compund of steel billet: two pieces that combine or three or more steel billet conveying are to combined segment body of heater exit position, and adjustment mill roll-gap, to suitable degree, utilizes guide and guards that combination blank is directly imported mill roll-gap and is rolled pressing;
E. the multi-pass rolling of composite steel billet: combination steel billet just can tentatively be combined with each other after Rolling compund, form composite steel billet, for eliminating compound interface, further raising interface bond strength, composite steel billet is made to form a complete entirety, recycling milling train carries out conventional multi-pass controlled rolling, till reaching satisfactory thickness and performance to composite steel billet.
2. one kind is reduced the device that method that Rolling compund produces slab and special heavy plate adopts, it is characterized in that this device comprises: entrance, seal section body of heater, reduction section body of heater, combined segment body of heater and Rolling compund section, described entrance is in original position, back to back is seal section body of heater, centre is reduction section body of heater, being combined segment body of heater after reduction section body of heater, is finally Rolling compund section, all adopts connecting bolt to be tightly connected between each section, adopt seal section baffle plate (10) to separate between described seal section body of heater and reduction section body of heater, between reduction section body of heater and combined segment body of heater, adopt reduction section baffle plate (15) to separate, described entrance is led mouth (3) by entrance deflector roll (2) and inlet seal and is formed, steel billet (1) is imported sealing and leads mouth (3) by entrance deflector roll (2), and coordinates with steel billet (1) and seal the inert gas in seal section body of heater, described seal section body of heater is by seal section furnace shell (7), conveyor roller (8) in stove, seal section inert gas entrance (9), heat-insulation layer (5), heating element heater (6) and seal section baffle plate (10) composition, seal section furnace interior filling inert gas, the reducibility gas of reduction section furnace interior is intercepted and sealed, seal section furnace shell (7) adopts Plate Welding to make, the inner refractory material that adopts does heat-insulation layer (5), seal section inert gas entrance (9) is arranged on seal section furnace shell (7) top, in heating element heater (6) and stove, conveyor roller (8) is arranged in seal section body of heater, heating element heater (6) controls fire box temperature, in stove, conveyor roller (8) completes steel billet (1) transport in body of heater, the opening of the seal section baffle plate (10) between seal section body of heater and reduction section body of heater is identical with steel billet (1) cross dimensions, seal section baffle plate (10) coordinates the gas intercepted in reduction section body of heater to pass through seal section body of heater with steel billet (1), seal section body of heater length is 2-30 rice, be highly 0.05-3.0 rice, seal section body of heater and inlet seal are led between mouth (3) and are adopted connecting bolt compact siro spinning technology, described reduction section body of heater is by reduction section furnace shell (12), reducing gas entrance (14), reducing gas outlet (11), heat-insulation layer (5), heating element heater (6), conveyor roller (8) in stove, reduction section baffle plate (15) and temperature element (13) composition, reduction section furnace interior is full of reducibility gas, the scale reduction on steel billet (1) surface is become metallic iron, temperature in reduction section body of heater is controlled by heating element heater (6), the traveling of blank in body of heater is controlled by conveyor roller in stove (8), reduction section furnace shell (12) adopts Plate Welding to make, the inner refractory material that adopts does heat-insulation layer (5), reducing gas entrance (14) is arranged on reduction section furnace shell top, reducing gas outlet (11) is arranged on reduction section furnace shell bottom, reducibility gas is entered by reducing gas entrance (14), export (11) by reducing gas to discharge, the opening of the reduction section baffle plate (15) between reduction section body of heater with combined segment body of heater is identical with steel billet (1) cross dimensions, reduction section baffle plate (15) coordinates the gas intercepted in reduction section body of heater to pass through combined segment body of heater with steel billet (1), reduction section body of heater length is 5-100 rice, be highly 0.05-3.0 rice, connecting bolt compact siro spinning technology is adopted between reduction section body of heater and seal section body of heater, described combined segment body of heater is by combined segment furnace shell (16), chuck (17), leading screw (18), combined segment inert gas entrance (19), hydraulic cylinder (20), dovetail groove (21), push rod (22), backstay (23), heat-insulation layer (5), conveyor roller (8) composition in heating element heater (6) and stove, combined segment furnace interior filling inert gas, temperature in combined segment body of heater is controlled by heating element heater (6), the traveling of blank in body of heater is controlled by conveyor roller in stove (8), combined segment furnace shell (16) adopts Plate Welding to make, the inner refractory material that adopts does heat-insulation layer (5), backstay (23) is arranged on combined segment lower portion of furnace body, conveyor roller (8) plane in stove is protruded in backstay (23) upper end, steel billet is stoped to travel forward, steel billet (1) head is positioned, when backstay (23) upper end returns to below conveyor roller in stove (8) plane, steel billet (1) after then allowing combination runs forward, when leading screw (18) turns clockwise, make the end of push rod (22) slide in opposition in dovetail groove (21), chuck (17) is driven to clamp the side of steel billet (1), and make steel billet (1) automatic centering, hydraulic cylinder (20) moves upward, promote dovetail groove (21) together with push rod (22), chuck (17) and steel billet (1) move upward together, next block steel billet (1) is transported to by below the steel billet (1) that holds up by conveyor roller in stove (8), through backstay (23) to head location, now, hydraulic cylinder (20) declines, dropped on next block steel billet (1) by the steel billet (1) held up, when leading screw (18) inhour rotates, chuck (17) decontrols steel billet (1), complete the stack combinations of two pieces of steel billets (1) and head and edge alignment, inert gas enters in combined segment body of heater from combined segment inert gas entrance (19), air seal is carried out to reduction section body of heater, combined segment body of heater length is 2-50 rice, be highly 0.1-8.0 rice, connecting bolt compact siro spinning technology is adopted between combined segment body of heater and reduction section body of heater, described Rolling compund section leads mouth (24) by exit seal and milling train (25) forms, exit seal is led between mouth (24) and combined segment body of heater and is adopted connecting bolt to be tightly connected, exit seal is led mouth (24) outlet and is close on the working roll of milling train (25), inert gas in combined segment body of heater is sealed, and the steel billet (1) of combination is derived body of heater, import the roll gap of milling train (25).
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| CN106929789A (en) * | 2017-04-09 | 2017-07-07 | 柯富荣 | One kind reduction hot-dip aluminizing devices and methods therefor |
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2015
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| JPS61103603A (en) * | 1984-10-24 | 1986-05-22 | Kawasaki Steel Corp | Manufacture of thick steel plate having plural step differences in thickness |
| JP2007296542A (en) * | 2006-04-28 | 2007-11-15 | Sumitomo Metal Ind Ltd | Method for continuously casting cast slab for ultra-thick steel plate |
| CN101812640A (en) * | 2009-02-23 | 2010-08-25 | 宝山钢铁股份有限公司 | In-situ composite high-strength thick steel plate and manufacturing method thereof |
| CN101773931A (en) * | 2009-12-30 | 2010-07-14 | 东北大学 | Method for rolling special thick board by means of vacuum compositing |
| CN101736204A (en) * | 2010-01-21 | 2010-06-16 | 山西太钢不锈钢股份有限公司 | High-strength atmospheric corrosion-resistant medium plate and manufacturing method thereof |
| CN102310077A (en) * | 2010-06-30 | 2012-01-11 | 辽宁科技大学 | Method for continuously reducing, rolling and compositing stainless steel/plain steel composite plate and device thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106929789A (en) * | 2017-04-09 | 2017-07-07 | 柯富荣 | One kind reduction hot-dip aluminizing devices and methods therefor |
| CN106929789B (en) * | 2017-04-09 | 2019-04-19 | 柯富荣 | A kind of reduction hot-dip aluminizing devices and methods therefor |
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| CN105107842B (en) | 2017-05-31 |
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