CN101693288A - Continuous casting-rolling production method for strips of copper and copper alloys - Google Patents
Continuous casting-rolling production method for strips of copper and copper alloys Download PDFInfo
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- CN101693288A CN101693288A CN200910210421A CN200910210421A CN101693288A CN 101693288 A CN101693288 A CN 101693288A CN 200910210421 A CN200910210421 A CN 200910210421A CN 200910210421 A CN200910210421 A CN 200910210421A CN 101693288 A CN101693288 A CN 101693288A
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Abstract
Disclosed is a continuous casting-rolling production method for strips of copper and copper alloys. The method comprises a continuous casting-rolling production technology and device configurations related to the continuous casting-rolling production technology, wherein the continuous casting-rolling production technology is generally set as the following seven working procedures: melting-stream guiding-purification-head box-distribution-continuous casting and rolling-winding. The device configurations comprise a melting device, stream guiding devices, a purification device, a head-box device, a distributer device, a continuous casting-rolling machine and a winding device. The connection sequence of the device configurations is: the melting device-a stream guiding device-the purification device-a stream guiding device-the head-box-a stream guiding device-the distributer device-the continuous casting-rolling machine-the winding device. The production method organically combines casting technology and rolling technology into one working procedure, and is a novel near-net-shaped processing technology, thereby apparently improving production efficiency of the strips of copper and copper alloys, dramatically decreasing energy consumption and conforming to national industrial development direction.
Description
[technical field]
The invention belongs to technical field of nonferrous metal processing, refer more particularly to the continuous casting-rolling production method of a kind of copper and copper alloy band.
[background technology]
The production method of present known copper and copper alloy band adopts following dual mode mostly:
One, ingot casting hot rolling method
Batching and melting-semi-continuous casting " slab ingot "-sawing-heating-hot rolling-mill face-cold rolling-annealing-cold rolling-finishing-shearing-goods packaging process.
Two, continuous casting made-up belt cold-rolling practice
Batching and melting-horizontal casting " slab "-mill face-sawing-cold rolling-annealing-cold rolling-finishing-shearing-goods packaging process.
The technological process relative time of above-mentioned two kinds of production methods is longer, yield rate is lower, for example 1.0mm thin band of copper alloy yield rate is about about 60%, and has the defective that energy resource consumption is big, metal loss is many, cost is too high, and the power that does not meet the national conservation-minded society that proposes is basic.
The application unit uses and is implemented in aluminium and aluminium alloy sheet and strip field and magnesium and magnesium alloy strip field with continuous casting-rolling production method, but copper and copper alloy band field are not applied as yet and implement, this mainly is that the physics of copper and copper alloy and chemical property and aluminium and aluminium alloy or magnesium and magnesium alloy exist very big-difference, copper and copper alloy are because high its smelting temperature of fusing point is also high, the solution temperature drop is very fast, forms the pairing technological parameter of production method of continuous casting and rolling and the equipment setting that matches around this technological parameter and the continuous casting and rolling of aluminium and aluminium alloy and magnesium and magnesium alloy and has very big-difference equally.
Continuous casting-rolling production method for copper and copper alloy band has very big social benefit and economic worth, this is many in common knowledge, but yet there are no relevant report so far, the difficult point of solution is technology setting and the technical problems such as coordinative composition of equipments that are provided with around technology.
[summary of the invention]
In order to address the above problem, the invention provides the continuous casting-rolling production method of a kind of copper and copper alloy band, this production method has solved copper and copper alloy fusing point height, the solution temperature drop reaches the good technical barrier of flow of solution performance soon, the tool and mould of contact metal bath surface is taked to carry out in advance the technical scheme of preheating according to copper and the described characteristic of copper alloy element, obtained copper and copper alloy band can be widely used in aspects such as electronics, electric power, traffic, the energy through the following process product again after curling, have that energy resource consumption is low, metal loss is few, cost can reduce significantly.
For achieving the above object, the present invention adopts following technical scheme:
The continuous casting-rolling production method of described a kind of copper and copper alloy band constitutes jointly by the continuous casting and rolling production technology with around the configuration of the equipment of this continuous casting and rolling production technology, wherein the continuous casting and rolling production technology totally is set to seven process of melting → water conservancy diversion → purification → preceding case → distribution → continuous casting and rolling → batch, though described water conservancy diversion is only as a process setting, but water conservancy diversion can intert between other operation adapted flexibly, and overall seven process divisions that are provided with are as follows:
I, melting
Prepare burden and carry out melting by copper and copper alloy processing request, copper that melts out and copper alloy melt tapping temperature are controlled at 1180～1350 ℃;
II, water conservancy diversion
Water conservancy diversion is arranged between the different operations, and the process route of Chan Shenging is therefrom: melting → water conservancy diversion → purification → water conservancy diversion → preceding case → water conservancy diversion → distribution; Be incubated if melted copper and copper alloy melt be placed in the holding furnace earlier, then holding temperature equals to melt out 1180～1350 ℃ of furnace temperatures, treat melting+insulation this moment as a process, but need to realize in the process of insulation in melting, so corresponding process route is: melting → water conservancy diversion → insulation → water conservancy diversion → purification → water conservancy diversion → preceding case → water conservancy diversion → distribution → continuous casting and rolling → batch by the water conservancy diversion transition;
III, purification
Copper and copper alloy melt import cleaning procedure by water conservancy diversion and carry out filter cleaner;
IV, preceding case
Copper with filter cleaner after clean and the copper alloy melt is pure import by water conservancy diversion before case, preceding case operation is provided with purpose and is: preceding case has heater, water conservancy diversion by different sections can make copper and copper alloy melt produce temperature decline, copper and copper alloy melt are heated up or are incubated at preceding case in-process, heat up or the temperature of insulation is controlled at 1120～1350 ℃;
V, distribution
Copper and copper alloy melt by preceding case intensification or insulation import the distribution operation by water conservancy diversion, and the distributor in this distribution operation is dispensed to copper and copper alloy melt between two rolls of milling train in the continuous casting and rolling operation uniformly;
Distributing operation role one is at width copper and the molten body fluid flow of copper alloy to be arrived between the roll gap of continuous casting equably, the 2nd, control copper and copper alloy melt realize that in the form of " solidifying-deformed area " copper and the copper alloy form from the melt to the continuous casting and rolling changes;
VI, continuous casting and rolling
Distribute the copper and the copper alloy that come to enter the continuous casting and rolling operation by distributing operation, copper and copper alloy melt will stand rolling deformation when solidifying distortion, on the continuous casting in the continuous casting and rolling operation, following two rolls are that the cooling water that is connected with pressurization forms the inner-cooled roll, partly solidify the copper of attitude and copper alloy last, realize continuous casting and rolling between following two rolls, on, following two roller gaps are controlled at 2～16mm, the made-up belt width of continuous casting and rolling is controlled at 200～1200mm, the roll-force of roll is controlled at 300～2000t, the mill speed of roll is controlled at 600～3000mm/min, drafts is controlled at 5～25% with the deformation extent of the preceding thickness of distortion, and the made-up belt THICKNESS CONTROL of continuous casting and rolling is at 2～16mm; The hydraulic pressure of control cooling water can be realized the copper of good flowing properties and copper alloy melt to the moulding problem of partly solidifying attitude, assurance copper and the smooth continuous casting and rolling of copper alloy band under described continuous casting and rolling control of process parameters;
VII, batch
Made-up belt on-line synchronous through the continuous casting and rolling operation enters coiling process, and coiling speed is controlled between 600～3000mm/min, batches internal diameter and is controlled between Ф 250～650mm, and the made-up belt after batching carries out stress relief annealing to be handled;
The equipment that concerned process steps disposed of all contact copper and copper alloy melt should carry out pre-heating temperature elevation in advance in the above-mentioned operation, and the temperature of pre-heating temperature elevation is controlled at 700～900 ℃;
In the above-mentioned operation from the first time water conservancy diversion initial segment until outlet section copper and copper alloy melt are all adopted industrial purity nitrogen N to distributor
2Protect, or adopt high-purity argon gas to protect, or adopt coal gas CO to protect;
Equipment configuration around the continuous casting and rolling production technology is made of smelting apparatus, guiding device, purifier, front box device, dispenser device, continuous casting and devices for taking-up, and the connection of described equipment configuration is in proper order: smelting apparatus → guiding device → purifier → guiding device → front box device → guiding device → dispenser device → continuous casting → devices for taking-up; Equipment configuration connection during the configuration holding furnace is in proper order: smelting apparatus → guiding device → holding furnace → guiding device → purifier → guiding device → front box device → guiding device → dispenser device → continuous casting → devices for taking-up.
The continuous casting-rolling production method of described a kind of copper and copper alloy band, copper that melt out from the melting operation in its continuous casting and rolling production technology or that be incubated out from holding furnace and copper alloy melt reach oxygen content＜0.0020% o'clock can omit cleaning procedure, the continuous casting and rolling production technology of this moment is adjusted into: six process of melting → water conservancy diversion → preceding case → distribution → continuous casting and rolling → batch, corresponding process route is: melting → water conservancy diversion → preceding case → water conservancy diversion → distribution → continuous casting and rolling → batch, the initial segment of water conservancy diversion all adopts industrial purity nitrogen N until the outlet section to distributor to copper and copper alloy melt from the first time
2Protect, or adopt high-purity argon gas to protect, or adopt coal gas CO to protect; The technological parameter of described six process is identical with aforementioned technological parameter.
The continuous casting-rolling production method of described a kind of copper and copper alloy band, the equipment that disposes according to six process of melting → water conservancy diversion → preceding case → distribution → continuous casting and rolling → batch is made of smelting apparatus, guiding device, front box device, dispenser device, continuous casting and devices for taking-up, and the equipment configuration connection of this formation is in proper order: smelting apparatus → guiding device → front box device → guiding device → dispenser device → continuous casting → devices for taking-up.
The continuous casting-rolling production method of described a kind of copper and copper alloy band, cleaning procedure in its continuous casting and rolling production technology and preceding case operation can be merged into conjuncted operation, and conjuncted operation can be omitted a water conservancy diversion link, reduces occupation area of equipment; The technological parameter of conjuncted operation equals the technological parameter of aforementioned cleaning procedure and preceding case operation, the continuous casting and rolling production technology of this moment is adjusted into: six process of melting → water conservancy diversion → conjuncted → distribution → continuous casting and rolling → batch, corresponding process route is: melting → water conservancy diversion → conjuncted → water conservancy diversion → distribution → continuous casting and rolling → batch, melting in described six process, water conservancy diversion, distribute, continuous casting and rolling or the technological parameter that batches are identical with aforementioned technological parameter, and the initial segment of water conservancy diversion all adopts industrial purity nitrogen N until the outlet section to distributor to copper and copper alloy melt from the first time
2Protect, or adopt high-purity argon gas to protect, or adopt coal gas CO to protect.
The continuous casting-rolling production method of described a kind of copper and copper alloy band, the equipment that disposes according to six process of melting → water conservancy diversion → conjuncted → distribution → continuous casting and rolling → batch is by smelting apparatus, guiding device, conjuncted device, dispenser device, continuous casting and devices for taking-up constitute, the equipment configuration connection of this formation is in proper order: smelting apparatus → guiding device → conjuncted device → guiding device → dispenser device → continuous casting → devices for taking-up, conjuncted device wherein is connected as a single entity by aforementioned purifier and front box device and constitutes jointly, omits the guiding device of transition between purifier and the front box device.
The continuous casting-rolling production method of described a kind of copper and copper alloy band, its guiding device are mobile and are the open type guiding gutter of concave shape, add loam cake in the upper end of open type guiding gutter concave shape and constitute sealed guiding gutter; Inlay insulating brick in open type guiding gutter or the sealed guiding gutter, its length is difference with the difference of different configuration device syndeton lengths, feeds industrial purity nitrogen N in open type guiding gutter or sealed guiding gutter
2, or feed high-purity argon gas, or feed coal gas CO.
The continuous casting-rolling production method of described a kind of copper and copper alloy band, its purifier is a kind of tank body, be provided with the stainless steel screen pack in the tank body and be used for filtration copper and copper alloy melt, tank body is provided with the melt outlet, this melt outlet or connect with guiding device, or when purifier and front box device are connected as a single entity, directly connect with front box device.
The continuous casting-rolling production method of described a kind of copper and copper alloy band, its front box device is a kind of tank body, be provided with nickel-chromium resistance wire or Elema around the tank body, copper in the case before nickel-chromium resistance wire or the Elema eddy-current heating, front box device and copper alloy melt liquid level are kept certain height according to institute's cast copper and copper alloy made-up belt width and thickness so that stablely give dispenser device for stream.
The continuous casting-rolling production method of described a kind of copper and copper alloy band, its dispenser device be front-thin-rear-thick, the back for the inlet before for the outlet fan-shaped or square box, distributor is made of dual-side, top board, lower platen, melt inlet, melt outlet, the fast fastener that reaches of shunting, the fast inner chamber that forms of fixing shunting between top board and the lower platen, top board in the inner chamber and lower platen and dual-side liner and shunting all adopt high temperature resistant, fire-resistant material to make soon; Melt outlet in the dispenser device is arranged on the central horizontal face of continuous casting roll gap, have n (n 〉=2) branching block in the fan-shaped or square box, branching block is an elongated cylindrical, or rhombus, or it is semicircle, or hexagon, cabinets cavity is separated into n+1 passage, copper that imports through guiding device and copper alloy melt merge into a flat fan-shaped melt through n+1 passage by the melt inlet of dispenser device again by n branching block shunting, again the melt by dispenser device export flow to equably continuous casting and rolling on, between following two roller gaps.
The continuous casting-rolling production method of described a kind of copper and copper alloy band, the cooling water that upper and lower two rolls of its continuous casting are connected with pressurization forms the inner-cooled roll, the pressure of control cooling water is at 20～100Kpa, and the cooling water inlet water temperature is a normal temperature, and the outlet water temperature is ≯ 60 ℃.
Owing to adopted technique scheme, the present invention to have following beneficial effect:
1, the present invention compares with ingot casting hot rolling method technology, has saved operation and multi-pass hot rollings such as the face of milling, sawing, heating, compares with continuous casting made-up belt method, saved and milled the face operation, and made-up belt is thinner and have worked structure and better plasticity.
2, the present invention organically combines foundry engieering and rolling technique, operation of comprehensive one-tenth is finished, be a kind of novel nearly end form process technology, can significantly improve the production efficiency of copper and copper alloy band, reduce energy resource consumption significantly, meet the national industry developing direction.
3, the roll coil of strip material structure of the present invention's production is better than or is equal to the alloy structure of existing copper and the production of copper alloy band production method, and the copper and the copper alloy roll coil of strip that adopt the present invention to produce can be widely used in aspects such as electronics, electric power, traffic, the energy through the product of following process.
[description of drawings]
Fig. 1 is the continuous casting and rolling equipment configuration schematic diagram of band purifier of the present invention;
Fig. 2 is that the present invention is not with the continuous casting and rolling equipment configuration schematic diagram of purifier;
Fig. 3 is the continuous casting and rolling equipment configuration schematic diagram of the conjuncted device of band of the present invention;
Fig. 4 is the dispenser device structural representation;
Among the above-mentioned figure: the 1-smelting apparatus; The 2-guiding device; The 3-purifier; The 4-front box device; The 5-dispenser device; The 6-continuous casting; The 7-crimping device; The conjuncted device of 8-; The 9-side; The 10-lower platen; The 11-top board; The 12-shunting is fast.
[specific embodiment]
In conjunction with Fig. 1, the continuous casting-rolling production method of a kind of copper of the present invention and copper alloy band is made of smelting apparatus 1, guiding device 2, purifier 3, front box device 4, dispenser device 5, continuous casting 6 and devices for taking-up 7 around the equipment configuration of continuous casting and rolling production technology, and the connection of equipment configuration is in proper order: smelting apparatus 1 → guiding device 2 → purifier 3 → guiding device 2 → front box device 4 → guiding device 2 → dispenser device 5 → continuous casting 6 → devices for taking-up 7.
Embodiment 1
The common red copper roll coil of strip that is of a size of 6.0 * 600mm with production T2 is an example
At first that proportioning is good red copper drops into smelting apparatus 1 and carries out melting; The melt tapping temperature is at 1300 ℃; The red copper melt imports the purifier 3 that is made of refractory material through spill open type guiding device 2, imports baked front box device 4 after purifying, and front box device 4 temperature remain on 1220 ℃; Enter the dispenser device 5 of four passages that inner chamber forms by three branching blocks again, the red copper melt is distributed through dispenser device 5 to flow to upper and lower two that continuous casting 6 is provided with and have between the inner-cooled roller gap equably, roller gap is controlled at 2mm, and all adopt industrial purity nitrogen N through guiding device 2 to dispenser device 5 melts outlet
2 Continuous casting 6 roll-forces are 1000t, and mill speed is 3000mm/min, and its deformation extent (drafts and the percentage that is out of shape preceding thickness) reaches 25%.The red copper melt is through the roll condensation and be rolled into made-up belt, and continuous casting and rolling made-up belt width is 600mm, and thickness reaches 6mm.The red copper made-up belt carries out on-line synchronous through devices for taking-up 7 again and batches, and coiling speed is 3000mm/min, and batching internal diameter is Ф 650mm, carries out stress relief annealing then.
If will melted copper and the copper alloy melt be placed in the holding furnace earlier and be incubated, the equipment connection when disposing holding furnace is in proper order: smelting apparatus 1 → guiding device 2 → holding furnace → guiding device 2 → purifier 3 → guiding device 2 → front box device 4 → guiding device 2 → dispenser device 5 → continuous casting 6 → devices for taking-up 7.Equipment connection during according to the configuration holding furnace and continuous casting and rolling production technology are no longer in addition for embodiment, can set up holding furnace in embodiment 1 gets final product, this moment, holding temperature equaled to melt out 1180～1350 ℃ of furnace temperatures, and corresponding process route is: melting → water conservancy diversion → insulation → water conservancy diversion → purification → water conservancy diversion → preceding case → water conservancy diversion → distribution → continuous casting and rolling → batch.
In conjunction with Fig. 2, copper that melt out from the melting operation in the continuous casting and rolling production technology or that be incubated out from holding furnace and copper alloy melt reach oxygen content＜0.0020% o'clock can remove cleaning procedure, the continuous casting and rolling production technology of this moment is adjusted into: six process of melting → water conservancy diversion → preceding case → distribution → continuous casting and rolling → batch, corresponding process route is: melting → water conservancy diversion → preceding case → water conservancy diversion → distribution → continuous casting and rolling → batch, the initial segment of water conservancy diversion all adopts industrial purity nitrogen N until the outlet section to distributor to copper and copper alloy melt from the first time
2Protect, or adopt high-purity argon gas to protect, or adopt coal gas CO to protect; The technological parameter of described six process is identical with aforementioned technological parameter.The equipment that disposes according to six process of melting → water conservancy diversion → preceding case → distribution → continuous casting and rolling → batch is made of smelting apparatus 1, guiding device 2, front box device 4, dispenser device 5, continuous casting 6 and devices for taking-up 7, and the equipment configuration connection of this formation is in proper order: smelting apparatus 1 → guiding device 2 → front box device 4 → guiding device 2 → dispenser device 5 → continuous casting 6 → devices for taking-up 7.
In conjunction with Fig. 3, cleaning procedure in the continuous casting and rolling production technology and preceding case operation can be merged into conjuncted operation, and conjuncted operation can be omitted a water conservancy diversion link, reduce occupation area of equipment; The technological parameter of conjuncted operation equals the technological parameter of aforementioned cleaning procedure and preceding case operation, the continuous casting and rolling production technology of this moment is adjusted into: six process of melting → water conservancy diversion → conjuncted → distribution → continuous casting and rolling → batch, corresponding process route is: melting → water conservancy diversion → conjuncted → water conservancy diversion → distribution → continuous casting and rolling → batch, melting in described six process, water conservancy diversion, distribute, continuous casting and rolling or the technological parameter that batches are identical with aforementioned technological parameter, and the initial segment of water conservancy diversion all adopts industrial purity nitrogen N until the outlet section to distributor to copper and copper alloy melt from the first time
2Protect, or adopt high-purity argon gas to protect, or adopt coal gas CO to protect.The equipment that disposes according to six process of melting → water conservancy diversion → conjuncted → distribution → continuous casting and rolling → batch is by smelting apparatus 1, guiding device 2, conjuncted device 8, dispenser device 5, continuous casting 6 and devices for taking-up 7 constitute, the equipment configuration connection of this formation is in proper order: smelting apparatus 1 → guiding device 2 → conjuncted device 8 → guiding device 2 → dispenser device 5 → continuous casting 6 → devices for taking-up 7, conjuncted device wherein is connected as a single entity by aforementioned purifier 3 and front box device 4 and constitutes jointly, omits the guiding device 2 of transition between purifier 3 and the front box device 4.
The general T P2 copper strips volume that is of a size of 6.0 * 400mm with production TP2 is an example
At first that proportioning is good red copper raw material drops into smelting apparatus 1 and carries out melting, red copper melt tapping temperature is 1280 ℃, the red copper melt imports conjuncted device 8 through sealed guiding device 2, conjuncted device 8 temperature are controlled at 1180 ℃ and enter the dispenser device 5 that is formed three passages by two branching blocks, the TP2 melt is distributed upper and lower two of flowing to the continuous casting setting to have between the inner-cooled roller gap through dispenser device 5 equably, and roll gap is controlled at 16mm; All adopt high-purity argon gas to protect through guiding device 2 to dispenser device 5 melts outlet; The continuous casting roll-force is 300t, and mill speed is 600mm/min, and its deformation extent (drafts and the percentage that is out of shape preceding thickness) reaches 5%, and the TP2 melt is through the roll condensation and be rolled into made-up belt, and continuous casting and rolling made-up belt width is 400mm, and thickness is 6mm; TP2 copper strips base carries out on-line synchronous through devices for taking-up and batches, and coiling speed is 600mm/min, and batching internal diameter is Ф 250mm, carries out stress relief annealing then.
The silver-bearing copper roll coil of strip that is of a size of 8.0 * 1000mm with production TAg0.1 is an example
At first that proportioning is good silver-bearing copper raw material drops into smelting apparatus 1 and carries out melting, and silver-bearing copper melt tapping temperature is 1200 ℃.The silver-bearing copper melt imports holding furnace through sealed guiding device 2, and the holding furnace temperature is 1200 ℃.The silver-bearing copper melt temperature that enters conjuncted device 8 is controlled at 1160 ℃, enter the dispenser device 5 of five passages that form by four branching blocks then, the silver-bearing copper melt is distributed upper and lower two of flowing to the continuous casting setting to have between the inner-cooled roller gap through dispenser device 5 equably, and roller gap is controlled at 8mm.All adopt coal gas CO through guiding device 2 to dispenser device 5 melts outlet; The continuous casting roll-force is 800t, and mill speed is 2000mm/min, and its deformation extent (drafts and the percentage that is out of shape preceding thickness) reaches 20%, and the silver-bearing copper melt is through the roll condensation and be rolled into made-up belt, and continuous casting and rolling made-up belt width is at 1000mm, and thickness reaches 8mm.The silver-bearing copper made-up belt carries out on-line synchronous through devices for taking-up and batches, and coiling speed is 2000mm/min, and batching internal diameter is Ф 450mm, carries out stress relief annealing then.
In the foregoing description:
Smelting apparatus 1 or constitute by smelting furnace, or constitute jointly by smelting furnace+holding furnace, smelting furnace connects holding furnaces by guiding device 2.
Guiding device 2 is mobile and is the open type guiding gutter of concave shape, adds loam cake in the upper end of open type guiding gutter concave shape and constitute sealed guiding gutter; Inlay insulating brick in open type guiding gutter or the sealed guiding gutter, its length is difference with the difference of different configuration device syndeton lengths, feeds industrial purity nitrogen N in open type guiding gutter or sealed guiding gutter
2, or feed high-purity argon gas, or feed coal gas CO.
In conjunction with Fig. 4, dispenser device 5 be front-thin-rear-thick, the back for the inlet before for the outlet fan-shaped or square box, dispenser device 5 is made of dual-side 9, top board 11, lower platen 10, melt inlet, melt outlet, shunting fast 12 and fastener, fixing shunting fast 12 forms inner chamber between top board 11 and the lower platen 10, and top board 11 in the inner chamber and lower platen 10 and dual-side 9 liners and shunting fast 12 all adopt high temperature resistant, fire-resistant material to make; Melt outlet in the dispenser device 5 is arranged on the central horizontal face of continuous casting 6 roll gap, have n (n 〉=2) branching block 12 in the fan-shaped or square box, branching block 12 is an elongated cylindrical, or rhombus, or it is semicircle, or hexagon, cabinets cavity is separated into n+1 passage, copper that imports through guiding device 2 and copper alloy melt merge into a flat fan-shaped melt through n+1 passage by the melt inlet of dispenser device 5 again by n branching block shunting, again the melt by dispenser device 5 export flow to equably continuous casting 6 on, between following two roller gaps.
The cooling water that upper and lower two rolls of continuous casting 6 are connected with pressurization forms the inner-cooled roll, the inner-cooled roll generally uses at metallurgy industry, the pressure of the strict control of the present invention cooling water is at 20～100Kpa, and the cooling water inlet water temperature is a normal temperature, and the outlet water temperature is ≯ 60 ℃.
In sum, the present invention constitutes jointly by the continuous casting and rolling production technology with around the configuration of the equipment of this continuous casting and rolling production technology, wherein the continuous casting and rolling production technology totally is set to seven process of melting → water conservancy diversion → purification → preceding case → distribution → continuous casting and rolling → batch, though described water conservancy diversion is only as a process setting, but water conservancy diversion can intert between other operation adapted flexibly, and overall seven process divisions that are provided with are as follows:
Melting: prepare burden and carry out melting by copper and copper alloy processing request, copper that melts out and copper alloy melt tapping temperature are controlled at 1180～1350 ℃.
Water conservancy diversion: water conservancy diversion is arranged between the different operations, and the process route of Chan Shenging is therefrom: melting → water conservancy diversion → purification → water conservancy diversion → preceding case → water conservancy diversion → distribution; Be incubated if melted copper and copper alloy melt be placed in the holding furnace earlier, then holding temperature equals to melt out 1180～1350 ℃ of furnace temperatures, treat melting+insulation this moment as a process, but need to realize in the process of insulation in melting, so corresponding process route is: melting → water conservancy diversion → insulation → water conservancy diversion → purification → water conservancy diversion → preceding case → water conservancy diversion → distribution → continuous casting and rolling → batch by the water conservancy diversion transition.
Purify: copper and copper alloy melt import cleaning procedure by water conservancy diversion and carry out filter cleaner.
Before case: the copper with filter cleaner after clean and the copper alloy melt is pure import by water conservancy diversion before case, preceding case operation is provided with purpose and is: preceding case has heater, water conservancy diversion by different sections can make copper and copper alloy melt produce temperature decline, copper and copper alloy melt are heated up or are incubated at preceding case in-process, heat up or the temperature of insulation is controlled at 1120～1350 ℃.
Distribute: copper and copper alloy melt by preceding case intensification or insulation import the distribution operation by water conservancy diversion, and the distributor in this distribution operation is dispensed to copper and copper alloy melt between two rolls of milling train in the continuous casting and rolling operation uniformly.Distributing operation role one is to make copper and the molten body fluid flow of copper alloy reach roller gap equably at width, the 2nd, and control copper and copper alloy melt realize that in the form of " solidifying-deformed area " copper and the copper alloy form from the melt to the continuous casting and rolling changes.
Continuous casting and rolling: by distributing operation to distribute the copper and the copper alloy that come to enter the continuous casting and rolling operation, copper and copper alloy melt will stand rolling deformation when solidifying distortion, on the continuous casting in the continuous casting and rolling operation, following two rolls are that the cooling water that is connected with pressurization forms the inner-cooled roll, partly solidify the copper of attitude and copper alloy last, realize continuous casting and rolling between following two rolls, on, following two roller gaps are controlled at 2～16mm, the made-up belt width of continuous casting and rolling is controlled at 200～1200mm, the roll-force of roll is controlled at 300～2000t, the mill speed of roll is controlled at 600～3000mm/min, drafts is controlled at 5～25% with the deformation extent of the preceding thickness of distortion, and the made-up belt THICKNESS CONTROL of continuous casting and rolling is at 2～16mm; The hydraulic pressure of control cooling water can be realized the copper of good flowing properties and copper alloy melt to the moulding problem of partly solidifying attitude, assurance copper and the smooth continuous casting and rolling of copper alloy band under described continuous casting and rolling control of process parameters.
Batch: the made-up belt on-line synchronous through the continuous casting and rolling operation enters coiling process, and coiling speed is controlled between 600～3000mm/min, batches internal diameter and is controlled between Ф 250～650mm, and the made-up belt after batching carries out stress relief annealing to be handled;
The equipment that concerned process steps disposed of all contact copper and copper alloy melt should carry out pre-heating temperature elevation in advance in the described operation, and the temperature of pre-heating temperature elevation is controlled at 700～900 ℃.The equipment that concerned process steps disposed is meant guiding device 2, purifier 3, front box device 4 and dispenser device 5, be included in equally for 3 embodiment in.Equipment preheating or employing coal gas CO that concerned process steps disposed are heated up, or adopt other mode of heating all can, temperature is controlled at 700～900 ℃, and it is too fast to help not making copper and copper alloy melt to be lowered the temperature in cyclic process, guarantees the flowability of copper and copper alloy melt.
In the described operation from the first time water conservancy diversion initial segment until outlet section copper and copper alloy melt are all adopted industrial purity nitrogen N to distributor
2Protect, or adopt high-purity argon gas to protect, or adopt coal gas CO to protect.
Equipment configuration around the continuous casting and rolling production technology is made of smelting apparatus 1, guiding device 2, purifier 3, front box device 4, dispenser device 5, continuous casting 6 and devices for taking-up 7, and the connection of equipment configuration is in proper order: smelting apparatus 1 → guiding device 2 → purifier 3 → guiding device 2 → front box device 4 → guiding device 2 → dispenser device 5 → continuous casting 6 → devices for taking-up 7.
The equipment connection of configuration holding furnace is in proper order: smelting apparatus 1 → guiding device 2 → holding furnace → guiding device 2 → purifier 3 → guiding device 2 → front box device 4 → guiding device 2 → dispenser device 5 → continuous casting 6 → devices for taking-up 7.
In addition, copper that melt out from the melting operation in the continuous casting and rolling production technology or that be incubated out from holding furnace and copper alloy melt reach oxygen content＜0.0020% o'clock can remove cleaning procedure, the continuous casting and rolling production technology of this moment is adjusted into: six process of melting → water conservancy diversion → preceding case → distribution → continuous casting and rolling → batch, corresponding process route is: melting → water conservancy diversion → preceding case → water conservancy diversion → distribution → continuous casting and rolling → batch, the initial segment of water conservancy diversion all adopts industrial purity nitrogen N until the outlet section to distributor to copper and copper alloy melt from the first time
2Protect, or adopt high-purity argon gas to protect, or adopt coal gas CO to protect; The technological parameter of described six process is identical with aforementioned technological parameter.The equipment that disposes according to six process of melting → water conservancy diversion → preceding case → distribution → continuous casting and rolling → batch is made of smelting apparatus 1, guiding device 2, front box device 4, dispenser device 5, continuous casting 6 and devices for taking-up 7, and the equipment configuration connection of this formation is in proper order: smelting apparatus 1 → guiding device 2 → front box device 4 → guiding device 2 → dispenser device 5 → continuous casting 6 → devices for taking-up 7.
Claims (10)
1. the continuous casting-rolling production method of copper and copper alloy band, it is characterized in that: this continuous casting-rolling production method constitutes jointly by the continuous casting and rolling production technology with around the configuration of the equipment of this continuous casting and rolling production technology, wherein the continuous casting and rolling production technology totally is set to seven process of melting → water conservancy diversion → purification → preceding case → distribution → continuous casting and rolling → batch, though described water conservancy diversion is only as a process setting, but water conservancy diversion can intert between other operation adapted flexibly, and overall seven process divisions that are provided with are as follows:
I, melting
Prepare burden and carry out melting by copper and copper alloy processing request, copper that melts out and copper alloy melt tapping temperature are controlled at 1180～1350 ℃;
II, water conservancy diversion
Water conservancy diversion is arranged between the different operations, and the process route of Chan Shenging is therefrom: melting → water conservancy diversion → purification → water conservancy diversion → preceding case → water conservancy diversion → distribution; Be incubated if melted copper and copper alloy melt be placed in the holding furnace earlier, then holding temperature equals to melt out 1180～1350 ℃ of furnace temperatures, treat melting+insulation this moment as a process, but need to realize in the process of insulation in melting, so corresponding process route is: melting → water conservancy diversion → insulation → water conservancy diversion → purification → water conservancy diversion → preceding case → water conservancy diversion → distribution → continuous casting and rolling → batch by the water conservancy diversion transition;
III, purification
Copper and copper alloy melt import cleaning procedure by water conservancy diversion and carry out filter cleaner;
IV, preceding case
Copper with filter cleaner after clean and the copper alloy melt is pure import by water conservancy diversion before case, preceding case operation is provided with purpose and is: preceding case has heater, water conservancy diversion by different sections can make copper and copper alloy melt produce temperature decline, copper and copper alloy melt are heated up or are incubated at preceding case in-process, heat up or the temperature of insulation is controlled at 1120～1350 ℃;
V, distribution
Copper and copper alloy melt by preceding case intensification or insulation import the distribution operation by water conservancy diversion, and the distributor in this distribution operation is dispensed to copper and copper alloy melt between two rolls of milling train in the continuous casting and rolling operation uniformly;
Distributing operation role one is at width copper and the molten body fluid flow of copper alloy to be arrived between the roll gap of continuous casting equably, the 2nd, control copper and copper alloy melt realize that in the form of " solidifying-deformed area " copper and the copper alloy form from the melt to the continuous casting and rolling changes;
VI, continuous casting and rolling
Distribute the copper and the copper alloy that come to enter the continuous casting and rolling operation by distributing operation, copper and copper alloy melt will stand rolling deformation when solidifying distortion, on the continuous casting in the continuous casting and rolling operation, following two rolls are that the cooling water that is connected with pressurization forms the inner-cooled roll, partly solidify the copper of attitude and copper alloy last, realize continuous casting and rolling between following two rolls, on, following two roller gaps are controlled at 2～16mm, the made-up belt width of continuous casting and rolling is controlled at 200～1200mm, the roll-force of roll is controlled at 300～2000t, the mill speed of roll is controlled at 600～3000mm/min, drafts is controlled at 5～25% with the deformation extent of the preceding thickness of distortion, and the made-up belt THICKNESS CONTROL of continuous casting and rolling is at 2～16mm; The hydraulic pressure of control cooling water can be realized the copper of good flowing properties and copper alloy melt to the moulding problem of partly solidifying attitude, assurance copper and the smooth continuous casting and rolling of copper alloy band under described continuous casting and rolling control of process parameters;
VII, batch
Made-up belt on-line synchronous through the continuous casting and rolling operation enters coiling process, and coiling speed is controlled between 600～3000mm/min, batches internal diameter and is controlled between Φ 250～650mm, and the made-up belt after batching carries out stress relief annealing to be handled;
The equipment that concerned process steps disposed of all contact copper and copper alloy melt should carry out pre-heating temperature elevation in advance in the above-mentioned operation, and the temperature of pre-heating temperature elevation is controlled at 700～900 ℃;
In the above-mentioned operation from the first time water conservancy diversion initial segment until outlet section copper and copper alloy melt are all adopted industrial purity nitrogen N to distributor
2Protect, or adopt high-purity argon gas to protect, or adopt coal gas CO to protect;
Equipment configuration around the continuous casting and rolling production technology is made of smelting apparatus (1), guiding device (2), purifier (3), front box device (4), dispenser device (5), continuous casting (6) and devices for taking-up (7), and the connection of described equipment configuration is in proper order: smelting apparatus (1) → guiding device (2) → purifier (3) → guiding device (2) → front box device (4) → guiding device (2) → dispenser device (5) → continuous casting (6) → devices for taking-up (7); Equipment configuration connection during the configuration holding furnace is in proper order: smelting apparatus (1) → guiding device (2) → holding furnace → guiding device (2) → purifier (3) → guiding device (2) → front box device (4) → guiding device (2) → dispenser device (5) → continuous casting (6) → devices for taking-up (7).
2. the continuous casting-rolling production method of a kind of copper according to claim 1 and copper alloy band, it is characterized in that: copper that melts out from the melting operation in the continuous casting and rolling production technology or be incubated out from holding furnace and copper alloy melt reach oxygen content＜0.0020% o'clock can omit cleaning procedure, the continuous casting and rolling production technology of this moment is adjusted into: six process of melting → water conservancy diversion → preceding case → distribution → continuous casting and rolling → batch, corresponding process route is: melting → water conservancy diversion → preceding case → water conservancy diversion → distribution → continuous casting and rolling → batch, the initial segment of water conservancy diversion all adopts industrial purity nitrogen N until the outlet section to distributor to copper and copper alloy melt from the first time
2Protect, or adopt high-purity argon gas to protect, or adopt coal gas CO to protect; The technological parameter of described six process is identical with aforementioned technological parameter.
3. the continuous casting-rolling production method of a kind of copper according to claim 2 and copper alloy band, it is characterized in that: the equipment that disposes according to six process of melting → water conservancy diversion → preceding case → distribution → continuous casting and rolling → batch is by smelting apparatus (1), guiding device (2), front box device (4), dispenser device (5), continuous casting (6) and devices for taking-up (7) constitute, and the equipment configuration connection of this formation is in proper order: smelting apparatus (1) → guiding device (2) → front box device (4) → guiding device (2) → dispenser device (5) → continuous casting (6) → devices for taking-up (7).
4. the continuous casting-rolling production method of a kind of copper according to claim 1 and copper alloy band, it is characterized in that: cleaning procedure in the continuous casting and rolling production technology and preceding case operation can be merged into conjuncted operation, conjuncted operation can be omitted a water conservancy diversion link, reduces occupation area of equipment; The technological parameter of conjuncted operation equals the technological parameter of aforementioned cleaning procedure and preceding case operation, the continuous casting and rolling production technology of this moment is adjusted into: six process of melting → water conservancy diversion → conjuncted → distribution → continuous casting and rolling → batch, corresponding process route is: melting → water conservancy diversion → conjuncted → water conservancy diversion → distribution → continuous casting and rolling → batch, melting in described six process, water conservancy diversion, distribute, continuous casting and rolling or the technological parameter that batches are identical with aforementioned technological parameter, and the initial segment of water conservancy diversion all adopts industrial purity nitrogen N until the outlet section to distributor to copper and copper alloy melt from the first time
2Protect, or adopt high-purity argon gas to protect, or adopt coal gas CO to protect.
5. the continuous casting-rolling production method of a kind of copper according to claim 4 and copper alloy band, it is characterized in that: the equipment that disposes according to six process of melting → water conservancy diversion → conjuncted → distribution → continuous casting and rolling → batch is by smelting apparatus (1), guiding device (2), conjuncted device (8), dispenser device (5), continuous casting (6) and devices for taking-up (7) constitute, the equipment configuration connection of this formation is in proper order: smelting apparatus (1) → guiding device (2) → conjuncted device (8) → guiding device (2) → dispenser device (5) → continuous casting (6) → devices for taking-up (7), conjuncted device (8) wherein is connected as a single entity by aforementioned purifier (3) and front box device (4) and constitutes jointly, omits the guiding device (2) of transition between purifier (3) and the front box device (4).
6. according to the continuous casting-rolling production method of claim 1 or 3 or 5 described a kind of copper and copper alloy band, it is characterized in that: guiding device (2) is mobile and is the open type guiding gutter of concave shape, adds loam cake in the upper end of open type guiding gutter concave shape and constitute sealed guiding gutter; Inlay insulating brick in open type guiding gutter or the sealed guiding gutter, its length is difference with the difference of different configuration device syndeton lengths, feeds industrial purity nitrogen N in open type guiding gutter or sealed guiding gutter
2, or feed high-purity argon gas, or feed coal gas CO.
7. the continuous casting-rolling production method of a kind of copper according to claim 1 and copper alloy band, it is characterized in that: purifier (3) is a kind of tank body, be provided with the stainless steel screen pack in the tank body and be used for filtration copper and copper alloy melt, tank body is provided with the melt outlet, this melt outlet or connect with guiding device (1), or directly connect with front box device (4) when being connected as a single entity when purifier (3) and front box device (4).
8. according to the continuous casting-rolling production method of claim 1 or 3 described a kind of copper and copper alloy band, it is characterized in that: front box device (4) is a kind of tank body, be provided with nickel-chromium resistance wire or Elema around the tank body, copper in the case before nickel-chromium resistance wire or the Elema eddy-current heating, front box device (4) and copper alloy melt liquid level are kept certain height according to institute's cast copper and copper alloy made-up belt width and thickness so that stablely give dispenser device (5) for stream.
9. according to the continuous casting-rolling production method of claim 1 or 3 or 5 described a kind of copper and copper alloy band, it is characterized in that: dispenser device (5) is for front-thin-rear-thick, the back is the preceding fan-shaped or square box for outlet of inlet, dispenser device (5) is by dual-side (9), top board (11), lower platen (10), melt inlet, the melt outlet, shunting fast (12) and fastener constitute, fixing shunting fast (12) forms inner chamber between top board (11) and the lower platen (10), and top board in the inner chamber (11) and lower platen (10) and dual-side (9) liner and shunting fast (12) are all adopted high temperature resistant, fire-resistant material is made; Melt outlet in the dispenser device (5) is arranged on the central horizontal face of continuous casting roll gap, have n (n 〉=2) branching block in the fan-shaped or square box, branching block (12) is an elongated cylindrical, or rhombus, or it is semicircle, or hexagon, cabinets cavity is separated into n+1 passage, copper that imports through guiding device (2) and copper alloy melt are shunted by n branching block (12) by the melt inlet of dispenser device (5) and are merged into a flat fan-shaped melt through n+1 passage again, again the melt by dispenser device (5) export flow to equably continuous casting (7) on, between following two roller gaps.
10. according to the continuous casting-rolling production method of claim 1 or 3 or 5 described a kind of copper and copper alloy band, it is characterized in that: the cooling water that upper and lower two rolls of continuous casting (7) are connected with pressurization forms the inner-cooled roll, the pressure of control cooling water is at 20～100Kpa, the cooling water inlet water temperature is a normal temperature, and the outlet water temperature is ≯ 60 ℃.
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| CN102615491A (en) * | 2011-01-31 | 2012-08-01 | 肖克建 | Processing method for copper material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102615491A (en) * | 2011-01-31 | 2012-08-01 | 肖克建 | Processing method for copper material |
| CN102615491B (en) * | 2011-01-31 | 2015-05-20 | 肖克建 | Processing method for copper material |
| CN103934267A (en) * | 2014-03-07 | 2014-07-23 | 东北大学 | Double-cooling-area and double-roller cast rolling device |
| CN106345811A (en) * | 2016-09-01 | 2017-01-25 | 史汉祥 | Method for manufacturing brass rod wire |
| CN108941199A (en) * | 2018-06-27 | 2018-12-07 | 湖南三泰新材料股份有限公司 | A kind of reinforcing bar casting system and reinforcing bar casting-rolling method |
| CN109092895A (en) * | 2018-06-27 | 2018-12-28 | 湖南三泰新材料股份有限公司 | A kind of reinforcing bar continuous casting and rolling system and reinforcing bar continuous casting and tandem rolling production method |
| CN111299527A (en) * | 2019-12-12 | 2020-06-19 | 云南大泽电极科技股份有限公司 | Condensation crystallization technology for cast-rolled lead alloy plate strip |
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Effective date of registration: 20170823 Address after: 471039 No. 50, Jianxi, Luoyang District, Henan, Jianshe Road Patentee after: China Aluminum Luoyang Copper Processing Co., Ltd. Address before: 471039 No. 50, Jianxi, Luoyang District, Henan, Jianshe Road Patentee before: Zhonglu Luoyang Copper Industry Co., Ltd. |