CN1291801C - Semi-solid-state milling equipment of cast iron plate material - Google Patents
Semi-solid-state milling equipment of cast iron plate material Download PDFInfo
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- CN1291801C CN1291801C CN 200410041567 CN200410041567A CN1291801C CN 1291801 C CN1291801 C CN 1291801C CN 200410041567 CN200410041567 CN 200410041567 CN 200410041567 A CN200410041567 A CN 200410041567A CN 1291801 C CN1291801 C CN 1291801C
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- cast iron
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- rolling
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Abstract
The present invention relates to a semisolid rolling device for cast iron plates, which is mainly composed of a feeding mechanism, an induction heating system, a double-roller rolling mill system, a subsequent heat treatment furnace, a measuring and controlling system, etc. A cast iron blank which is pretreated is fed to the induction heating system by the feeding mechanism to be heated, and a semisolid cast iron blank with the temperature difference is smaller than or equal to 10 DEG between the surface and the heart is obtained. The blank is conveyed to a rolling system by a conveyor belt, and one rolling deformation quantity is controlled within the range of 0 to 70%. Rolled plates are carried out the annealing treatment by the subsequent heat treating furnace to obtain the cast iron plates with the thickness of 0.5mm to 50mm. the running of the feeding mechanism, the self-adaptation of the power of induction heating power, the regulation of the speed of the blank and the rollers, the temperature of the blank, and the control of the temperature of the subsequent heat treatment furnace are all regulated by the measuring and controlling system. Except for being used for rolling cast iron plates, the present invention can also be used for rolling alloy systems with wider liquid-solid coexistence regions, such as aluminum alloys, magnesium alloys, zinc alloys, copper alloys, high-carbon steel, high-carbon alloy steel, etc., in a semisolid way.
Description
Technical field
The present invention is a kind of semi-solid rolling equipment of cast iron sheet material, and it comprises feed mechanism, heating system, two roller rolling machine system, subsequent heat treatment stove and TT﹠C system, belongs to the stress metal processing technique field.
Background technology
Cast iron phosphorus content height, plastic deformation ability difference during room temperature and can't carry out cold working; Can not obtain during heating can be rolling as steel single-phase austenite structure.Therefore, up to the present, cast iron sheet material also can't carry out the industrialization Rolling Production as steel, more do not have the special-purpose rolling equipment of cast iron sheet material.
The laboratory research that the rarely seen Japanese Waseda University of the research data of relevant cast iron sheet material material technology research institute is carried out, it is to utilize two roll coagulation systems to make the molten steel solidification of flowing through between two rolls become 1～1.5mm white cast-iron thin plate, will use the rolling acquisition cast iron of common steel rolling equipment sheet material after its graphitizing annealing again.The cast iron thin plate that makes thus: thick 0.2～1mm, wide 100mm, mechanical property is σ
b: 373～1107MPa, δ: 2.3%～11%, and have good heat conductivility and damping property.This process of making cast iron sheet material only is laboratory research, does not see the complete set of equipments that is used for suitability for industrialized production cast iron sheet material or the relevant report of device.
Summary of the invention
Goal of the invention: the semi-solid rolling equipment that the object of the present invention is to provide a kind of cast iron sheet material, be to utilize to be in semisolid (when the solid-liquid phase region, be distributed in the liquid phase when solid phase is subsphaeroidal uniform particles) the thixotropic behavior that cast iron had, cast iron is carried out semi-solid rolling, so just avoided the limitation of cast iron plastic deformation ability difference when solid-state, and semisolid cast iron resistance of deformation is very little, rolling equipment is simplified greatly, and a time rolling reduction can reach more than 70%, the cast iron billet of square or other cross sectional shape is rolled into the cast iron sheet material of desired thickness size and mechanical property.
Technical scheme: the invention provides a kind of semi-solid rolling equipment of cast iron sheet material, comprise feed mechanism, heating system, two roller rolling machine system, subsequent heat treatment stove and TT﹠C system, each several part formation, effect and operation are as follows:
Feed mechanism is that pretreated continuous casting cast iron blank or die casting cast iron ingot square or other cross sectional shape are sent in the heating system, it is by roller-way, the fluid power pusher, formations such as displacement transducer, displacement transducer is arranged on the roller-way side, the position of control cast iron blank on roller-way, displacement signal is connected with TT﹠C system, actuating signal is passed the fluid power pusher again back, its course of work is: earlier blank is put in the perpendicular roller-way of load coil axis on, blank is shifted onto on the roller-way that parallels with the induction coil axis by the fluid power pusher then, guarantee that by the limited block of roller-way both sides blank axis and induction coil axis are on same straight line, by the fluid power pusher blank is pushed in the induction coil again, the position of blank on roller-way by displacement transducer by control.
Heating system mainly is made of induction heating power, preheating induction coil, soaking induction coil, blank connecting gear; Induction heating power is connected power supply with the preheating induction coil with the soaking induction coil, and the preheating induction coil is positioned at before the soaking induction coil; The blank connecting gear is meant that being provided with blank in the preheating induction coil transmits roller-way, is provided with the blank conveyer belt in the soaking induction coil; The blank conveyer belt is being by being arranged on the belt wheel between preheating induction coil and the soaking induction coil and the driving roll support of described milling train, and driven by the driving roll of milling train; Line speed is controlled by the roll rotational speed of control milling train; Eddy-current heating is divided into two sections: preheating section and soaking zone; Preheating section arrives a certain assigned temperature with the quick eddy-current heating of cast iron blank; Soaking zone is meant and the uniform induction of cast iron blank is heated to a certain temperature required, and guarantees that the cast iron blank surface before rolling and the temperature difference at blank central part position are not more than 10 ℃.Blank is delivered to the double-roll rolling mill porch by conveyer belt, and the easy like this blank translational speed that makes is consistent with the speed of roll, and is easy to regulate;
Rolling machine system mainly is made of two roller rolling machines, dc speed-regulating motor and electric cabinet, and dc speed-regulating motor is connected with milling train, and electric cabinet links to each other with motor, has the blank conveyer belt to pass through between two rolls of milling train; Blank is sent to milling train by conveyer belt and is rolled through behind the heating system; A time rolling reduction is controlled by the gap size of roll shop building, and adjustable in 0～70% scope.
Between milling train driving roll and subsequent heat treatment stove, be provided with water cooling plant, with the cast iron sheet material behind the cold rolling.
Rolling gained cast iron sheet material is provided with the transmission roller-way through suitably entering the subsequent heat treatment stove from an end after the cooling in the stove, the temperature adjustable extent is 750 ℃～1000 ℃ in the stove; Cast iron sheet material shifts out from the other end of subsequent heat treatment stove after the certain hour annealing in process, promptly obtains cast iron sheet material.
TT﹠C system is made of the displacement transducer of control feed mechanism, the temperature sensor of control eddy-current heating, the velocity sensor of control milling train, the temperature sensor of controlling the heating of subsequent heat treatment stove and industrial computer etc., industrial computer is electrically connected with each system respectively, by the operation of this system control feed mechanism, adjust induction heating power power with the needs that adapt to heating-up temperature, translational speed and roll rotational speed, control blank temperature and the subsequent heat treatment furnace temperature etc. of regulating blank and conveyer belt.
The temperature sensor of described control eddy-current heating has three infrared measurement of temperature points: a point for measuring temperature that is positioned at coil end is arranged in the preheating induction coil, have one to be positioned at loop length direction middle part, two points for measuring temperature that are positioned at coil end in the soaking induction coil.
The continuous casting or the die casting cast iron blank chemical analysis that are applicable to this equipment require to be (mass percent): C1.5%～2.4%; Si 1.2%～2.0%; Mn 0.5%～1.0%; P≤0.1%; S≤0.1%.
The continuous casting or the die casting cast iron ingot blank cross sectional shape that are applicable to this equipment can be circular, square or rectangular, cross-sectional maximum dimension≤150mm, and length is not limit.
Described induction heating power power is in 60KW～2000KW scope, and frequency is 100HZ～2KHZ, and the actual heating power of power supply is subjected to the blank temperature height and control automatically.
Described rolling system is meant two roller rolling machines, its roller diameter in 300mm～800mm scope, the power of motor≤100KW of milling train.
The sheet metal thickness of the cast iron plate of rolling gained is in 0.5mm～50mm scope.
Beneficial effect
Remarkable advantage of the present invention is:
1, the present invention is the complete set of equipments that a cover can be realized serialization, mass Rolling Production semi-solid casting iron plate material;
2, the power of motor of used pair of roller rolling machine is little, but a time deflection can reach more than 70%;
3, the cast iron sheet material gauge of this device fabrication is adjustable in 0.5mm～50mm scope, and sheet material tensile strength is greater than 400MPa, and percentage elongation is greater than 5%;
4, the present invention is the semi-solid rolling equipment of cast iron sheet material, except that can be used for the cast iron plate rolling, it still is used to have the alloy system of broad solid-liquid coexistence, rolling as aluminium alloy, magnesium alloy, kirsite, copper alloy, high-carbon steel and high-carbon alloy steel etc.
Description of drawings
Accompanying drawing 1 is the structural principle schematic diagram of cast iron sheet material semi-solid rolling equipment of the present invention.
The 1-feed mechanism; 2-preheating induction coil; 3-soaking induction coil;
The two roller rolling machines of 4-; 5-subsequent heat treatment stove; The 6-conveyer belt;
7-feeding observing and controlling; Blank temperature observing and controlling (not shown); The observing and controlling of 9-furnace temperature;
The 10-induction power supply; 11-control centre; The 12-stand motor;
The 13-support; 14-water-cooled shower nozzle.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described.
Embodiment: cast iron blank shape of cross section is a square, size 50mm * 50mm * 1200mm, and chemical composition is C 1.5%～3.0%, Si1.5%～3.2%, Mn 0.5%～1.0%, P≤0.1%, S≤0.1%.
The semi-solid rolling equipment of cast iron sheet material, include feed mechanism 1, heating system, two roller rolling machine 4, subsequent heat treatment stove 5 and control centre 11, control centre 11 is electrically connected with feed mechanism 1, heating system, two roller rolling machine 4, subsequent heat treatment stove 5 respectively.
Feed mechanism 1 comprises roller-way, fluid power pusher, displacement transducer; Displacement transducer is arranged on the roller-way side, the position of control cast iron blank on roller-way, and displacement signal is connected with TT﹠C system, and actuating signal is passed the fluid power pusher again back; The roller-way of feed mechanism 1 has two, article one, roller-way and load coil axis are perpendicular, the second roller-way parallels with the load coil axis, is provided with limited block in the both sides of second roller-way, is on same the straight line to guarantee blank axis and induction coil axis.
Heating system mainly contains induction heating power 10, preheating induction coil 2, soaking induction coil 3, blank connecting gear composition, induction heating power 10 is connected power supply with preheating induction coil 2 with soaking induction coil 3, and preheating induction coil 2 is positioned at before the soaking induction coil 3; Induction heating power power is 1000KW, and frequency is 1000HZ, and the actual heating power of power supply is subjected to the height of blank temperature and controls automatically; In preheating induction coil 2, be provided with blank and transmit roller-way, in soaking induction coil 3, be provided with blank conveyer belt 6, blank conveyer belt 6 is being by being arranged on the belt wheel between preheating induction coil 2 and the soaking induction coil 3 and the driving roll support of milling train, and driven by the driving roll of milling train 4; Line speed is controlled by the roll rotational speed of control milling train 4.
Two roller rolling machine system mainly contains two roller rolling machines 4, dc speed-regulating motor 12 and electric cabinet and constitutes, and dc speed-regulating motor 12 is connected with milling train 4, and electric cabinet links to each other with motor 12, has blank conveyer belt 6 to pass through between two rolls of milling train; The roller diameter 500mm of two roller rolling machines, the power of motor 100KW of milling train.Between milling train driving roll and subsequent heat treatment stove 5, be provided with cold water shower nozzle 14, with the cast iron sheet material behind the cold rolling.
Subsequent heat treatment stove 5 is meant annealing furnace, is provided with the transmission roller-way in the stove, and temperature is regulated in 700-1500 ℃ of scope.
Control centre 11 is made up of the displacement transducer 7 of control feed mechanism, the temperature sensor of control eddy-current heating, the velocity sensor of control milling train 4, the temperature sensor 9 and the industrial computer of control subsequent heat treatment stove heating, industrial computer is electrically connected with each system, by operation, needs, adjusting blank and the translational speed of conveyer belt 6 and the temperature of roll rotational speed, control blank temperature and subsequent heat treatment stove 5 of adjustment induction heating power power to adapt to heating-up temperature of this system's control feed mechanism.The temperature sensor of eddy-current heating has three infrared measurement of temperature points: a point for measuring temperature that is positioned at coil end is arranged in preheating induction coil 2, point for measuring temperature, a point for measuring temperature that is positioned at coil end that is positioned at loop length direction middle part is arranged in soaking induction coil 3.
The semi-solid rolling process of cast iron sheet material is as follows: the cast iron blank that is made by continuous metal cast process or die casting is under 7 controls of feeding measure and control device, send into certain speed by pay-off 1 and to preheat in the induction coil 2, the cast iron blank is preheated induction coil 2 and is heated to a certain temperature in motion process after, send in the soaking induction coil 3 by the conveyer belt 6 on the driving roll that preheats driven pulley and two roller rolling machines 4 between induction coil 2 and the soaking induction coil 3, arrive a certain temperature through soaking induction coil 3 eddy-current heating, enter two roller rolling machines 4 with conveyer belt 6 then and carry out semi-solid rolling, rolling gained cast iron plate is cooled to temperature required again through water-cooled shower nozzle 14 water sprays, entering anneals in the subsequent heat treatment stove 5 again promptly gets the thick cast iron sheet material of 0.5mm～50mm.The tensile strength of its rolling gained cast iron sheet material is greater than 400MPa, and percentage elongation is greater than 5%.
The present invention program is when operate as normal, the heating-up temperature of the translational speed of the feeding speed of cast iron blank, the heating-up temperature in preheating induction coil 2, the heating-up temperature in soaking induction coil 3, conveyer belt 6 (being rolling mill speed), subsequent heat treatment stove 5 is carried out feeding observing and controlling 7, induction power supply 10 power observing and controlling, blank temperature observing and controlling, furnace temperature observing and controlling 9, stand motor 12 rotating speed observing and controlling by control centre 11, thus make in the semi-solid rolling equipment each several part smoothly, operation in phase.Feed mechanism 1, preheating induction coil 2, soaking induction coil 3, two roller rolling machine 4, subsequent heat treatment stove 5 etc. all place on the support 13.
Claims (9)
1, a kind of semi-solid rolling equipment of cast iron sheet material, it is characterized in that: comprise feed mechanism, heating system, two roller rolling machine system, subsequent heat treatment stove and TT﹠C system, TT﹠C system is electrically connected with feed mechanism, heating system, rolling machine system, heat-treatment furnace respectively.
2, the semi-solid rolling equipment of cast iron sheet material according to claim 1, it is characterized in that: described feed mechanism places before the heating system, comprise roller-way, fluid power pusher, displacement transducer, displacement transducer is arranged on the roller-way side, the position of control cast iron blank on roller-way, displacement signal is connected with TT﹠C system, and actuating signal is passed the fluid power pusher again back; Described roller-way has two, article one, roller-way and load coil axis are perpendicular, the second roller-way parallels with the load coil axis, is provided with limited block in the both sides of second roller-way, is on same the straight line to guarantee blank axis and induction coil axis.
3, the semi-solid rolling equipment of cast iron sheet material according to claim 2, it is characterized in that: described heating system mainly contains induction heating power, preheating induction coil, soaking induction coil, blank connecting gear composition, induction heating power is connected power supply with the preheating induction coil with the soaking induction coil, and the preheating induction coil is positioned at before the soaking induction coil; The blank connecting gear is meant that being provided with blank in the preheating induction coil transmits roller-way, is provided with the blank conveyer belt in the soaking induction coil; The blank conveyer belt is being by being arranged on the belt wheel between preheating induction coil and the soaking induction coil and the driving roll support of described milling train, and driven by the driving roll of milling train; Line speed is controlled by the roll rotational speed of control milling train; Described induction heating power power is 60～2000KW, and frequency is 100～2000HZ, and the actual heating power of power supply is subjected to the height of blank temperature and controls automatically.
4, according to the semi-solid rolling equipment of claim 1 or 2 or 3 described cast iron sheet materials, it is characterized in that: described rolling machine system mainly contains two roller rolling machines, dc speed-regulating motor and electric cabinet and constitutes, dc speed-regulating motor is connected with milling train, electric cabinet links to each other with motor, has the blank conveyer belt to pass through between two rolls of milling train; The roller diameter of its pair roller rolling machine is in 300～800mm scope, and the power of motor of milling train is not more than 100KW.
5, the semi-solid rolling equipment of cast iron sheet material according to claim 2 is characterized in that: the water cooling plant of cast iron sheet material after being provided with the energy cold rolling between milling train driving roll and the subsequent heat treatment stove.
6, according to the semi-solid rolling equipment of claim 1 or 2 or 5 described cast iron sheet materials, it is characterized in that: described subsequent heat treatment stove is meant the heat-treatment of annealing stove, is provided with the transmission roller-way in the stove, and temperature regulating range is 700～1500 ℃ in the stove.
7, the semi-solid rolling equipment of cast iron sheet material according to claim 2, it is characterized in that: described TT﹠C system is by the displacement transducer of control feed mechanism, the temperature sensor of control eddy-current heating, the velocity sensor of control milling train, the temperature sensor and the industrial computer of the heating of control subsequent heat treatment stove are formed, industrial computer is electrically connected with each system respectively, by the operation of this system's control feed mechanism, adjust induction heating power power to adapt to the needs of heating-up temperature, regulate the translational speed and the roll rotational speed of blank and conveyer belt, control blank temperature and subsequent heat treatment furnace temperature.
8, the semi-solid rolling equipment of cast iron sheet material according to claim 7, it is characterized in that: the temperature sensor of described eddy-current heating has three infrared measurement of temperature points: the preheating induction coil has a point for measuring temperature that is positioned at coil end, and the soaking induction coil has the point for measuring temperature, the point for measuring temperature that is positioned at coil end that are positioned at loop length direction middle part.
9, the semi-solid rolling equipment of cast iron sheet material according to claim 4 is characterized in that: described milling train is when rolled plate, and a time rolling reduction is controlled in 0～70% scope, by the roll gap size adjustment of roll shop building.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410041567 CN1291801C (en) | 2004-07-30 | 2004-07-30 | Semi-solid-state milling equipment of cast iron plate material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410041567 CN1291801C (en) | 2004-07-30 | 2004-07-30 | Semi-solid-state milling equipment of cast iron plate material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1597158A CN1597158A (en) | 2005-03-23 |
| CN1291801C true CN1291801C (en) | 2006-12-27 |
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ID=34665133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410041567 Expired - Fee Related CN1291801C (en) | 2004-07-30 | 2004-07-30 | Semi-solid-state milling equipment of cast iron plate material |
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| Country | Link |
|---|---|
| CN (1) | CN1291801C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103240273B (en) * | 2013-05-16 | 2016-08-03 | 哈尔滨理工大学 | Alusil alloy rolling system and milling method |
| CN103341509B (en) * | 2013-06-07 | 2016-08-10 | 哈尔滨理工大学 | Reduce rolling equipment and the milling method of alusil alloy gas hole defect |
| CN103331300A (en) * | 2013-06-13 | 2013-10-02 | 南京惠德机械有限公司 | Secondary roller mill for waste iron sheet |
| CN106941738A (en) * | 2017-05-05 | 2017-07-11 | 应达工业（上海）有限公司 | A kind of blank induction heating equipment for blank roll line |
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2004
- 2004-07-30 CN CN 200410041567 patent/CN1291801C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1597158A (en) | 2005-03-23 |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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Effective date of registration: 20091204 Address after: No. 200, Xiaolingwei, Jiangsu, Nanjing: 210094 Co-patentee after: Nanjing Iron & Steel United Co., Ltd. Patentee after: Nanjing University of Science and Technology Address before: No. 200, Xiaolingwei, Jiangsu, Nanjing: 210094 Co-patentee before: Nanjing Iron & Steel United Co., Ltd. Patentee before: Nanjing University of Science and Technology |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061227 Termination date: 20120730 |