CN101003080A - Equipment and method for hot continuously casting metal wire - Google Patents
Equipment and method for hot continuously casting metal wire Download PDFInfo
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- CN101003080A CN101003080A CN 200710063322 CN200710063322A CN101003080A CN 101003080 A CN101003080 A CN 101003080A CN 200710063322 CN200710063322 CN 200710063322 CN 200710063322 A CN200710063322 A CN 200710063322A CN 101003080 A CN101003080 A CN 101003080A
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- crystallizer
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Abstract
A hot-type conticasting apparatus for casting metal (or alloy) wire is composed of a vacuum furnace communicated with external inertial gas source, a smelting furnace in said vacuum furnace with crystallizer, cooler and billet pulling system, a PLC control system, and a pressure detecting unit on said vacuum furnace for detecting its internal pressure.
Description
Technical field
The invention belongs to the hot-mold continuous cast technical field, relate to a kind of preparation facilities and method with continuous columnar or single-crystal metal wire rod.
Background technology
From the end of the sixties in last century, after big wild sincere U.S.A has proposed hot-mold continuous cast method (OCC method), a lot of scholars have carried out the research of hot-mold continuous cast, and achievement in research is applied to a lot of fields, wherein relatively typical application to be exactly the ingot casting that will have a continuous cylindrical crystalline texture be prepared into the very little wire rod of diameter through forcing the worker under the low temperature such as cold rolling, drawing, be used as electric car contact wire, high-fidelity music center lead and semiconductor package wiring etc., wherein the diameter as the semiconductor package wiring has only about 20 μ m.The broken string phenomenon occurs through regular meeting in technologies such as wire rod cold rolling, drawing and in the use, influence the quality and the application of wire rod, one of them main cause is exactly that the wire internal tissue is unstable.The patent No. is that 02227920.2 utility model " a kind of novel hot-mold continuous cast foundry furnace " discloses a kind of hot-mold continuous cast unit, comprise plunger mechanism that crucible, heater, control molten metal flow out and horizontal chute, casting mold, dummy bar, pulling rolls, wherein heater places the outside of crucible, horizontal chute is arranged on the sidewall of crucible, the one end communicates with crucible by plunger mechanism, the other end communicates with casting mold, one end of dummy bar places in the casting mold, and the other end is provided with the throwing roller that makes it to move.The molten metal melted through smelting furnace enters into this continuous casting installation for casting through ad hoc chute, and stable back is pulled out ingot casting through cooling device by the throwing roller.This hot-mold continuous cast unit carries out the hot-mold continuous cast operation under antivacuum, and the pressure of casting mold porch and the temperature of casting mold is not controlled, so the continuous casting wire quality is very unstable, and the success rate that hot-mold continuous cast is produced is also lower.
Summary of the invention
At the problem of above-mentioned existence, the object of the present invention is to provide a kind of hot continuously casting metal wire device and method, can directly produce surface-brightening, stay-in-grade hot-mold continuous cast column crystal wire rod.
For achieving the above object, a kind of hot continuously casting metal wire device provided by the invention comprises: vacuum drying oven, melting body of heater, PLC control system and pressure-detecting device; Pressure-detecting device is arranged on the vacuum drying oven, is used to detect the air pressure of vacuum drying oven, and detection signal is transferred to described PLC control system; Vacuum drying oven is by the external inertia source of the gas of control valve, and control valve is controlled by described PLC control system; The melting body of heater is arranged in the described vacuum drying oven, and the port of export of melting body of heater is connected with a crystallizer, and the output of this crystallizer is disposed with cooling device and throwing system.
Further, be disposed with taper water conservancy diversion end, column heat accumulating sections, taper diversion section and column shaped segment on the described crystallizer, the internal diameter of described heat accumulating sections is 1.2～3 times of internal diameter of shaped segment.
Further, also be provided with the temperature measuring equipment that detects this crystallizer outlet temperature on the described crystallizer, this temperature measuring equipment is transferred to described PLC control system with the signal that detects.
Further, described cooling device connects a cooling water recirculation system by a control valve, and this control valve is controlled by described PLC control system.
A kind of hot continuously casting metal wire method provided by the invention comprises the steps:
1) master alloy melting in vacuum drying oven, vacuum remains on 10
-1Below the Pa;
2) foundry alloy melted after, under 20～120 ℃ of degrees of superheat, be incubated 20～50 minutes;
3) charge into inert protective gas in vacuum drying oven, gas pressure is controlled at 0.1～0.2Mp;
4) foundry alloy is imported the crystallizer crystallization and is shaped, and the mode by atmospheric pressure compensating hydraulic pressure to make the inlet pressure of crystallizer be definite value, thereby make the pressure of crystallizer outlet keep constant.
Further, be disposed with taper water conservancy diversion end, column heat accumulating sections, taper diversion section and column shaped segment on the described crystallizer, the internal diameter of described heat accumulating sections is 1.2～3 times of internal diameter of shaped segment.
The present invention is by utilizing vacuum system molten alloy under the certain vacuum degree, and then crystallization is shaped under inert gas shielding, and keeps crystallizer outlet pressure and outlet temperature certain, thereby prepares the wire rod of steady quality, surface-brightening.In addition, employing is provided with the crystallizer of taper water conservancy diversion end, column heat accumulating sections, taper diversion section and column shaped segment, not only also significantly reduced the blemish of continuous casting wire rod, and help to form the wire rod of surface-brightening, and reduced resistance possible when being shaped, make that wire rod is more difficult to be broken.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a structure of mould schematic diagram among Fig. 1.
1 is that air accumulator, 2 is that filtering pressure reducing valve, 3 is that control valve, 5 is that breather line, 7 is that pressure-detecting device, 8 is that Pressure gauge, 10 is that temperature measurer, 11 is that peephole, 12 is that bell, 13 is that vacuum drying oven, 14 is that molten metal, 15 is that heater coil, 16 is that melting body of heater, 17 is that crystallizer, 18 is that cooling device, 19 is that throwing system, 20 is that temperature measuring equipment, 21 is that control valve, 22 is that cooling water recirculation system, 23 is the PLC control system.
The specific embodiment
As shown in Figure 1, the present invention includes: vacuum drying oven 13, melting body of heater 16, PLC control system 23 and pressure-detecting device 7; Pressure-detecting device 7 is arranged on the vacuum drying oven 13, is used to detect the air pressure of vacuum drying oven 13, and detection signal is transferred to PLC control system 23; Vacuum drying oven 13 is by control valve 3 external inertia source of the gas air accumulators 1, and the output of air accumulator 1 is equipped with filtering pressure reducing valve 2; Melting body of heater 16 is arranged in the vacuum drying oven 13, the port of export of melting body of heater 16 is connected with a crystallizer 17, the output of this crystallizer 17 is disposed with cooling device 18 and throwing system 19, cooling device 18 connects a cooling water recirculation system 22 by control valve 21, and control valve 21 is by 23 controls of PLC control system.Also be provided with the temperature measuring equipment 20 that detects these crystallizer 17 outlet temperatures on the crystallizer 17, this temperature measuring equipment 20 is transferred to PLC control system 23 with the signal that detects, PLC control system 23 is compared the temperature value that records with setting value, if inconsistently can regulate cooling water inflow by the control valve 21 on the PLC control system 23 control water routes, thus the temperature of crystallization control device 17 outlets.Also be provided with temperature measurer 10 on the vacuum drying oven 13, the transfer of data that this temperature measurer 10 records is given PLC control system 23, thereby can the strict temperature of controlling foundry alloys in the melting body of heater 16.Also be provided with Pressure gauge 8 on the vacuum drying oven 13.
As shown in Figure 2, be disposed with taper water conservancy diversion end 24, column heat accumulating sections 25, taper diversion section 26 and column shaped segment 27 on the crystallizer 17, the internal diameter of heat accumulating sections 25 is 1.2～3 times of internal diameter of shaped segment 27, crystallizer 17 leading portion heat accumulating sections 25 intracavity diameters are greater than gauge or diameter of wire, can also well fill type when playing the accumulation of heat effect, it is more obvious that it fills the type effect during for the less wire rod of continuous casting diameter, back segment shaped segment 27 zero drafts and wire rod profile are coincide, reduce the resistance possible when being shaped and the destruction of wire surface, helped to form the wire rod of surface-brightening.
During to the metal wire rod continuous casting, specifically comprise the steps:
1) open the bell 12 of vacuum drying oven 13, melting body of heater 16 master alloy meltings 14 that in vacuum drying oven 13, are provided with, vacuum remains on 10
-1Below the Pa;
2) after molten 14 refinings well of foundry alloy, under 20～120 ℃ of degrees of superheat, be incubated 20～50 minutes;
3) pressure of setting filtering pressure reducing valve 2 is opened control valve 3 and is filled inert protective gas to 0.1～0.2Mpa for melting body of heater 16;
4) open PLC control system 23, adjust the control parameter as the temperature of melting body of heater 16, the temperature of crystallizer 17 outlets, the aperture of electric control valve 21 etc., foundry alloy 14 is imported crystallizer 17 crystallizations to be shaped, open cooling-cycle device 22 simultaneously, control valve 21, drawing device 19 is realized the hot-mold continuous cast of wire rod, and the mode by atmospheric pressure compensating hydraulic pressure to make the inlet pressure of crystallizer 17 be definite value, thereby the pressure that makes crystallizer 17 outlets keeps constant, specifically: open control valve 3 in the casting process, utilize 23 controls of PLC control system to realize the constant of crystallizer 17 porch pressure, and by PLC control system 23, temperature measuring equipment 20, control valve 21, and cooling water recirculation system 22 crystallization control devices 17 outlet temperatures.
According to method of the present invention, the casting diameter is Al-1%Si, the Al-1%Si-Mg of ￠ 5, ￠ 8, the continuous columnar or the monocrystalline wire rod of three kinds of alloys of Cu.The technological parameter of casting process is as shown in table 1.The wire rod that is cast out except that the check surface quality, has also carried out structure observation and mechanical test, and its structure has been listed table 2 in.
The technological parameter of table 1 embodiment wire rod hot-mold continuous cast
The surface quality and the tissue of table 2 embodiment wire rod hot-mold continuous cast
| Alloy | Gauge or diameter of wire (mm) | Surface quality | Tissue |
| Al-1％Si | 5、8 | The light zero defect | Monocrystalline |
| Al-1％Si-Mg | 5、8 | The light zero defect | Monocrystalline |
| Cu | 5、8 | The light zero defect | Fibrous crystal |
Claims (6)
1, a kind of hot continuously casting metal wire device is characterized in that, comprising: vacuum drying oven, melting body of heater, PLC control system and pressure-detecting device; Pressure-detecting device is arranged on the vacuum drying oven, is used to detect the air pressure of vacuum drying oven, and detection signal is transferred to described PLC control system; Vacuum drying oven is by the external inertia source of the gas of control valve, and control valve is controlled by described PLC control system; The melting body of heater is arranged in the described vacuum drying oven, and the port of export of melting body of heater is connected with a crystallizer, and the output of this crystallizer is disposed with cooling device and throwing system.
2, a kind of hot continuously casting metal wire device according to claim 1, it is characterized in that, be disposed with taper water conservancy diversion end, column heat accumulating sections, taper diversion section and column shaped segment on the described crystallizer, the internal diameter of described heat accumulating sections is 1.2～3 times of internal diameter of shaped segment.
3, a kind of hot continuously casting metal wire device according to claim 1 and 2 is characterized in that, also is provided with the temperature measuring equipment that detects this crystallizer outlet temperature on the described crystallizer, and this temperature measuring equipment is transferred to described PLC control system with the signal that detects.
4, a kind of hot continuously casting metal wire device according to claim 3 is characterized in that described cooling device connects a cooling water recirculation system by a control valve, and this control valve is controlled by described PLC control system.
5, a kind of hot continuously casting metal wire method is characterized in that, comprises the steps:
1) master alloy melting in vacuum drying oven, vacuum remains on 10
-1Below the Pa;
2) foundry alloy melted after, under 20～120 ℃ of degrees of superheat, be incubated 20～50 minutes;
3) charge into inert protective gas in vacuum drying oven, gas pressure is controlled at 0.1～0.2Mp;
4) foundry alloy is imported the crystallizer crystallization and is shaped, and the mode by atmospheric pressure compensating hydraulic pressure to make the inlet pressure of crystallizer be definite value, thereby make the pressure of crystallizer outlet keep constant.
6, a kind of hot continuously casting metal wire method according to claim 5, it is characterized in that, be disposed with taper water conservancy diversion end, column heat accumulating sections, taper diversion section and column shaped segment on the described crystallizer, the internal diameter of described heat accumulating sections is 1.2～3 times of internal diameter of shaped segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100633220A CN100455379C (en) | 2007-01-09 | 2007-01-09 | Equipment and method for hot continuously casting metal wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100633220A CN100455379C (en) | 2007-01-09 | 2007-01-09 | Equipment and method for hot continuously casting metal wire |
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| Publication Number | Publication Date |
|---|---|
| CN101003080A true CN101003080A (en) | 2007-07-25 |
| CN100455379C CN100455379C (en) | 2009-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100633220A Expired - Fee Related CN100455379C (en) | 2007-01-09 | 2007-01-09 | Equipment and method for hot continuously casting metal wire |
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| CN (1) | CN100455379C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179493A (en) * | 2011-04-20 | 2011-09-14 | 钢铁研究总院 | Vacuum continuous casting apparatus for high-temperature alloy |
| CN103143690A (en) * | 2013-04-02 | 2013-06-12 | 安泰科技股份有限公司 | Continuous casting device and method for directly preparing metal rod or wire |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2550097Y (en) * | 2002-05-31 | 2003-05-14 | 广东工业大学 | Hot continuous cast furnace |
| CN1317092C (en) * | 2005-08-02 | 2007-05-23 | 兰州理工大学 | Hot-mold continuous cast unit for preparing bulk amorphous material |
-
2007
- 2007-01-09 CN CNB2007100633220A patent/CN100455379C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179493A (en) * | 2011-04-20 | 2011-09-14 | 钢铁研究总院 | Vacuum continuous casting apparatus for high-temperature alloy |
| CN102179493B (en) * | 2011-04-20 | 2013-03-20 | 钢铁研究总院 | Vacuum continuous casting apparatus for high-temperature alloy |
| CN103143690A (en) * | 2013-04-02 | 2013-06-12 | 安泰科技股份有限公司 | Continuous casting device and method for directly preparing metal rod or wire |
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| Publication number | Publication date |
|---|---|
| CN100455379C (en) | 2009-01-28 |
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Granted publication date: 20090128 Termination date: 20220109 |