CN100479622C - Silver-base alloy strip material conductive heating equipment - Google Patents
Silver-base alloy strip material conductive heating equipment Download PDFInfo
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- CN100479622C CN100479622C CNB2006100225284A CN200610022528A CN100479622C CN 100479622 C CN100479622 C CN 100479622C CN B2006100225284 A CNB2006100225284 A CN B2006100225284A CN 200610022528 A CN200610022528 A CN 200610022528A CN 100479622 C CN100479622 C CN 100479622C
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- alloy strip
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Abstract
An electric conductive heating device of silver based alloy strip is prepared as connecting temperature transducer and temperature controller to silicon controlled regulator being connected to electric control cabinet, connecting electric control cabinet to primary side of transformer, connecting secondary side of transformer to two pairs of conductive rollers, clamping a section of strip to be heated by two pairs of rollers at back and front, using a rolling machine to draw strip to move and driving conductive rings at outer layer of conductive rollers by said strip.
Description
(1) technical field
The present invention relates to a kind of conductive heating equipment, particularly a kind of silver-base alloy strip material conductive heating equipment also is applicable to the heating of silver-base alloy wire rod.
(2) technical background
The heat that the sheet metal strip conductive heating equipment utilizes himself resistance of sheet metal strip energising back to produce makes the material heating, and this kind equipment is simply energy-conservation.Present existing conductive heating equipment mainly is applicable to tungsten, sheet metal strip or wire rod heating that the molybdenum constant resistance is bigger.Existing this kind equipment still can use for copper material, but is difficult to use in the conductive heater of silver-base alloy strip material.Reason is that silver-base alloy resistance is too small, and when voltage was big slightly, electric current was just excessive, and equipment damages easily, and resistance hour needs the heating rapidly of bigger electric current, to current delivery is required height to the electric installation that is heated on the band.Special in online conductive heating equipment, need to guarantee that online mobile band to be heated contacts with conducting end well, need to prevent electric installation heating back damage simultaneously, existing conductive heating equipment is difficult to realize, so the online conductive heating equipment that is applicable to silver-base alloy strip material is not arranged at present as yet.
(3) summary of the invention
The objective of the invention is to design a kind of silver-base alloy strip material conductive heating equipment, be particularly suitable for milling train online supportingly, be used for the processing of silver-base alloy strip material.
The silver-base alloy strip material conductive heating equipment of the present invention's design comprises transformer, electric installation, and electric installation is the two pairs of conductive rollers in front and back, near back conductive rollers of being called of roll, also includes temperature controller, temperature sensor, controllable silicon regulator and electrical control cubicles.A side joint electrical control cubicles of transformer, temperature sensor is close with the band at conductive rollers place, back, and temperature sensor is connected with temperature controller through holding wire, and the latter is connected with controllable silicon regulator, controllable silicon regulator inserts electrical control cubicles, regulates transformer primary side voltage.Two pairs of conductive rollers are at one section heated silver-base alloy strip material of front and back position clamping, and each is connected 2 conducting end of Circuit Fault on Secondary Transformer through the two ends that pair of conductive roller and band are heated part.
Be subjected to the influence of the factors such as sectional area of ambient temperature, the band speed of service, band, the temperature that band is heated part can produce fluctuation.Temperature controller is according to the measured signal of temperature sensor during this equipment work, and control silicon controlled trigger angle makes it control transformer primary side voltage, thereby regulates Circuit Fault on Secondary Transformer voltage, keeps the temperature stabilization of conductive rollers place, back band.
The conductive rollers of this silver-base alloy strip material conductive heating equipment comprises conducting ring, central shaft, and conducting ring is set on the central shaft that is fixed in frame rotationally, between conducting ring and the central shaft insulated thermal insulating layer is arranged, and central shaft is a hollow shaft, logical cooling water in it.Band successively passes the heated one section silver-base alloy strip material of clamping before and after two pairs of conductive rollers, the two pairs of conductive rollers, and the band that leaves the back conductive rollers inserts between the roll of milling train, and the band between the two pairs of conductive rollers is heated.The output termination brush of Circuit Fault on Secondary Transformer, brush matches with the outer field conducting ring of conductive rollers.Milling train pulling band moves, and band drives the outer field conducting ring of conductive rollers and rotates.
According to the distance between two pairs of conductive rollers, the speed of milling train pulling band operation and the required temperature that reaches of heating of setting, regulate Circuit Fault on Secondary Transformer voltage, obtain certain current strength, make enter two pairs between the conductive rollers bands energisings and heated rapidly, conductive rollers position after ribbon motion arrives, reach design temperature, enter milling train processing thereupon.
In running, be subjected to the influence of factors such as ambient temperature, the band speed of service, band sectional area, the temperature that band is heated part can produce fluctuation, so the temperature controller of this equipment is controlled controllable silicon regulator automatically according to the signal of temperature sensor.When the temperature of back conductive rollers place band is on the low side, increase the controllable silicon trigger angle, improve Circuit Fault on Secondary Transformer voltage, the electric current that is heated band between two pairs of conductive rollers is increased, temperature raises; During the temperature drift of back conductive rollers place band, the maximum trigger angle of restriction silicon controlled reduces Circuit Fault on Secondary Transformer voltage, and the electric current that is heated band between two pairs of conductive rollers is reduced.
The advantage of silver-base alloy strip material conductive heating equipment of the present invention is: 1, continuous online heating, be suitable for using on the silver-base alloy strip material process line, and equally also be applicable to the online heating of silver-base alloy wire rod; 2, need be heated to design temperature by processing, firing rate is fast, and temperature homogeneity is good, can not cross heating, energy savings; 3, the outer conducting ring electric conductivity of conductive rollers is good, guarantees to contact well with online mobile band, can not scratch strip surface again, and guarantees that electric current does not leak; 4, insulation is good between the conducting ring of conductive rollers and the central shaft, and the central shaft of hollow has refrigerating function, prevents that heat from conducting to central shaft and damaging bearing, prolongs conductive rollers useful life; 4, this device structure is simple, and cost is low, is suitable for applying.
(4) description of drawings
Fig. 1 is this silver-base alloy strip material conductive heating equipment embodiment 1 structural representation;
Fig. 2 is this silver-base alloy strip material conductive heating equipment embodiment conductive rollers structural representation;
Fig. 3 is Fig. 2 vertical profile schematic diagram;
Fig. 4 is Fig. 2 schematic side view;
Fig. 5 is this silver-base alloy strip material conductive heating equipment embodiment 2 structural representations.
(5) embodiment
This silver-base alloy strip material conductive heating equipment embodiment 1 comprises transformer 8, front and back conductive rollers 3, temperature controller 5 as shown in Figure 1, temperature sensor 4, controllable silicon regulator 6 and electrical control cubicles 7.Adopt transformer changing from three phases to single phase in this example, i.e. power supply three-phase input, single-phase output after the transformation, the balanced ratio and the utilization rate of electrical of raising electrical network.Two pairs of conductive rollers 3 are at the heated one section silver-base alloy strip material 1 of front and back position clamping, and near roll is back conductive rollers 3.A side joint electrical control cubicles 7 of transformer 8, temperature sensor 4 is positioned near conductive rollers 3 places, back, for example temperature sensor 4 is a thermocouple, contacting with heated silver-base alloy strip material 1 near conductive rollers 3 places, back, temperature sensor 4 is connected with temperature controller 5 through holding wire, and temperature controller 5 is a single-chip microcomputer, and it is connected with controllable silicon regulator 6, controllable silicon regulator 6 inserts electrical control cubicles, regulates transformer 8 primary side voltages.
The structure of conductive rollers 3 such as Fig. 2 are to shown in Figure 4, comprise conducting ring 3-1, central shaft 3-2, wheel hub 3-4, supporting disk 3-5, wheel hub 3-4 is installed on the central shaft 3-2 through bearing 3-3, wheel hub 3-4 two ends are left and right sides supporting disk 3-5 fixedly, the external diameter of supporting disk 3-5 is greater than the external diameter of wheel hub 3-4, the side of supporting disk 3-5 is a taper seat, and the awl bottom surface is outside.It is the rim of taper seat that supporting disk 3-5 can have lateral surface.Conducting ring 3-1 internal diameter equates that with the external diameter of supporting disk 3-5 there is the chamfering that matches with supporting disk 3-5 outside taper seat at interior ring two ends, and conducting ring 3-1 is stuck in outside the supporting disk 3-5, and insulation spacer 3-6 is arranged between the two contact-making surface.Conducting ring 3-1 is the Zr-Cu ring that resistivity is low, resistance to wear is good, fills insulation heat-barrier material 3-7 between conducting ring 3-1 and the wheel hub 3-4.Conducting ring 3-1, supporting disk 3-5 and wheel hub 3-4 can rotate around central shaft 3-2.Central shaft 3-2 is fixed in frame, and central shaft 3-2 is a hollow shaft, logical cooling water in it.
As shown in Figure 1, two pairs of conductive rollers 3 are at the heated one section silver-base alloy strip material 1 of front and back position clamping, and the band 1 that leaves back conductive rollers 3 inserts between the roll 2.Two termination brushes 9 of transformer 8 secondary sides, brush 9 contacts with conductive rollers 3 outer field conducting ring 3-1.Roll 2 pulling bands 1 move, and band 1 drives conductive rollers 3 outer field conducting ring 3-1 rotations simultaneously.
The temperature controller 5 of equipment is according to the measured signal of temperature sensor 4 in this example, and control silicon controlled trigger angle makes it control transformer 8 primary side voltages, thereby regulates transformer 8 secondary side voltages, keeps the temperature stabilization of conductive rollers place, back band.When this equipment was started working, because of band 1 is in cold conditions, temperature controller 5 control controllable silicons made it trigger angle and increase, and improve transformer 8 secondary side voltages, make the electric current that is heated band 1 between two pairs of conductive rollers 3 increase accelerated warming; When the temperature drift of conductive rollers place, back band, the maximum trigger angle of temperature controller 5 restriction silicon controlleds reduce transformer 8 secondary side voltages, and the electric current of two pairs of bands 1 between the conductive rollers 3 is reduced.After the adjusting certainly of 3～5 bucks, enter the stabilization sub stage, promptly band 1 is heated continuously by rated current.
This silver-base alloy strip material conductive heating equipment embodiment 2 as shown in Figure 5.Because of also having a segment distance from this firing equipment to milling train, the temperature when guaranteeing that band enters milling train as the 3rd pair of conductive rollers, makes the roll 2 of milling train band 1 continues energising before entering milling train and is incubated.As shown in Figure 5, this example is furnished with transformer 8, conductive rollers 3, temperature controller 5, temperature sensor 4, controllable silicon regulator 6 and the electrical control cubicles 7 identical with embodiment 1, also increases a teaser transformer 11 and voltage regulator 10.Teaser transformer 11 primary sides are connected the brush 9 of conductive rollers 3 after the termination of secondary side, the brush 9 that another termination cooperates with roll 2 through voltage regulator 10 with the electrical control cubicles 7 of controllable silicon regulator 6 controls.Voltage regulator 10 is regulated the output end voltage of teaser transformers 11, thereby regulates the electric current of band 1 on 2 on back pair of conductive roller and roll.Wherein, back conductive rollers connects positive pole, and it is earth electrode that preceding conductive rollers and roll connect negative pole.Because of the heating between back conductive rollers 3 and the roll 2 has been the energising insulation effect, the electric current of teaser transformer 11 (promptly being in the electric current of band 1 between back conductive rollers 3 and the roll 2) is much smaller than the electric current (promptly being in the electric current of band 1 between two pairs of conductive rollers 3) of transformer 8.
Claims (9)
1, a kind of silver-base alloy strip material conductive heating equipment comprises transformer (8), electric installation, it is characterized in that:
Electric installation is the two pairs of conductive rollers in front and back (3), and two pairs of conductive rollers (3) are at the heated one section silver-base alloy strip material of front and back position clamping (1), and near roll (2) is back conductive rollers (3); Also comprise temperature controller (5), temperature sensor (4), controllable silicon regulator (6) and electrical control cubicles (7), a side joint electrical control cubicles (7) of transformer (8), temperature sensor (4) is positioned near back conductive rollers (3) to be located, temperature sensor (4) is connected with temperature controller (5) through holding wire, temperature controller (5) is connected with controllable silicon regulator (6), and controllable silicon regulator (6) inserts electrical control cubicles (7);
Conductive rollers (3) comprises conducting ring (3-1), central shaft (3-2), and conducting ring (3-1) is set on the central shaft (3-2) that is fixed in frame rotationally, between conducting ring (3-1) and the central shaft (3-2) insulated thermal insulating layer is arranged;
The band (1) that leaves back conductive rollers (3) inserts between the roll (2); 2 termination brushes (9) of transformer (8) secondary side, brush (9) contacts with the outer field conducting ring of conductive rollers (3) (3-1) cooperation.
2, silver-base alloy strip material conductive heating equipment according to claim 1 is characterized in that:
Described conductive rollers (3) also comprises wheel hub (3-4), supporting disk (3-5), wheel hub (3-4) is installed on the central shaft (3-2) through bearing (3-3), wheel hub (3-4) two ends are left and right sides supporting disk (3-5) fixedly, the external diameter of supporting disk (3-5) is greater than the external diameter of wheel hub (3-4), the side of supporting disk (3-5) is a taper seat, the awl bottom surface is outside, conducting ring (3-1) internal diameter equates with the external diameter of supporting disk (3-5), there is the chamfering that matches with supporting disk (3-5) outside taper seat at interior ring two ends, conducting ring (3-1) is stuck in outside the supporting disk (3-5), insulation spacer (3-6) is arranged between the two contact-making surface, fill insulation heat-barrier material (3-7) between conducting ring (3-1) and the wheel hub (3-4).
3, silver-base alloy strip material conductive heating equipment according to claim 2 is characterized in that:
Described central shaft (3-2) is a hollow shaft, logical cooling water in it.
4, silver-base alloy strip material conductive heating equipment according to claim 2 is characterized in that:
It is the rim of taper seat that described supporting disk (3-5) has lateral surface.
5, according to each described silver-base alloy strip material conductive heating equipment in the claim 1 to 4, it is characterized in that:
Described temperature controller (5) is according to the measured signal of temperature sensor (4), control silicon controlled trigger angle, make it control transformer (8) primary side voltage, thereby regulate transformer (8) secondary side voltage, keep the temperature stabilization that back conductive rollers (3) is located band (1).
6, according to each described silver-base alloy strip material conductive heating equipment in the claim 1 to 4, it is characterized in that:
Described transformer (8) is a transformer changing from three phases to single phase.
7, according to each described silver-base alloy strip material conductive heating equipment in the claim 1 to 4, it is characterized in that:
Described controllable silicon regulator (6) is furnished with overcurrent protector.
8, according to each described silver-base alloy strip material conductive heating equipment in the claim 1 to 4, it is characterized in that:
Also be furnished with teaser transformer (11) and voltage regulator (10), teaser transformer (11) primary side is connected through the electrical control cubicles (7) of voltage regulator (10) with controllable silicon regulator (6) control, the brush (9) of conductive rollers (3) after one termination of secondary side, the brush (9) that another termination cooperates with roll (2).
9, silver-base alloy strip material conductive heating equipment according to claim 8 is characterized in that:
Described back conductive rollers (3) connects positive pole, and it is earth electrode that preceding conductive rollers (3) and roll (2) connect negative pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100225284A CN100479622C (en) | 2006-12-12 | 2006-12-12 | Silver-base alloy strip material conductive heating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100225284A CN100479622C (en) | 2006-12-12 | 2006-12-12 | Silver-base alloy strip material conductive heating equipment |
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| CN1976547A CN1976547A (en) | 2007-06-06 |
| CN100479622C true CN100479622C (en) | 2009-04-15 |
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| CNB2006100225284A Active CN100479622C (en) | 2006-12-12 | 2006-12-12 | Silver-base alloy strip material conductive heating equipment |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102382950B (en) * | 2011-11-08 | 2013-07-31 | 建科机械（天津）股份有限公司 | Conductive wheel electric heating device for cold-rolled ribbed steel bar production line |
| US20140339210A1 (en) * | 2011-11-29 | 2014-11-20 | Neturen Co., Ltd. | Direct resistance heating apparatus and direct resistance heating method |
| JP6142409B2 (en) * | 2012-08-06 | 2017-06-07 | 高周波熱錬株式会社 | Electric heating method |
| JP6194526B2 (en) * | 2013-06-05 | 2017-09-13 | 高周波熱錬株式会社 | Method and apparatus for heating plate workpiece and hot press molding method |
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