CN105177317B - A kind of electron-beam cold bed furnace rectangle melting section feeding technology of titanium or titanium alloy - Google Patents
A kind of electron-beam cold bed furnace rectangle melting section feeding technology of titanium or titanium alloy Download PDFInfo
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- CN105177317B CN105177317B CN201510561133.0A CN201510561133A CN105177317B CN 105177317 B CN105177317 B CN 105177317B CN 201510561133 A CN201510561133 A CN 201510561133A CN 105177317 B CN105177317 B CN 105177317B
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Abstract
The electron-beam cold bed furnace rectangle melting section feeding technology of titanium or titanium alloy, it is determined that stopping charging after needing feeding section, after material all melts, the electron gun that will be responsible for scanning beam cold hearth smelting zone, fining cell and casting area cuts out, until crystallizer of the casting gate without molten metal stream time to electron-beam cold bed furnace；Keep the extension position of ingot casting constant, maintain liquid level position in crystallizer；Start to perform feeding；If feeding position is casting head, recover to be responsible for the electron gun scanning patter size of scanning crystallizer after the completion of feeding, recover the scan power of its electron gun, and open the electron gun for being responsible for smelting zone, fining cell and casting area, the direct pouring after electron gun is stable；When feeding position is ingot casting afterbody, electron gun is directly closed.Present invention process design is simple and convenient to operate, using effect is good, the defect that energy effectively solving rectangular slab head, afterbody occur, and greatly improves the once lumber-preserving rate of ingot casting.
Description
Technical field
The present invention relates to the electron-beam cold bed furnace rectangle melting section Feeding field of titanium or titanium alloy.
Background technology
For the vacuum consumable smelting (VAR) of titanium or titanium alloy, at the end of melting soon, generally requiring carries out feeding
To reduce the depth of ingot casting afterbody shrinkage cavity, the lumber recovery of ingot casting is improved.Existing feeding technology is typically using reduction fusing step by step
Electric current, is carried out in the way of small current is incubated.Need to calculate remaining electrode weight when feeding starts using the feeding technology, often
Level electric current, voltage and time etc..As the parameters such as electric current during every stove melting, voltage, vacuum can occur fluctuation, it is easily caused
When every stove titanium or titanium alloy smelting feeding, not enough, feeding terminates the remaining electrode weight of appearance in advance, the shrinkage cavity scope of its ingot casting
Fluctuation is larger or more in remaining electrode weight so that the ingot casting lumber recovery of the stove declines.Becoming a useful person for ingot casting is affected into finally
Rate.In follow-up production, also need to carry out to strip off the skin, the operation such as cogging forging, the lumber recovery of product can be made greatly to decline.
Ingot casting blank for following process can be directly produced out using continuous casting technology, it is to avoid cogging of still needing after VAR meltings
Forging, the secondary operation such as strip off the skin, simultaneously because the ingot casting specification cast using continuous casting is big, are greatly improved the lumber recovery of ingot casting.
But the technique productions strand is adopted, its depth-width ratio is big, and due to many Bian Constraint Cooling Technologies of ingot casting outer surface, causes outer surface
Temperature is too low, easily cracks in appearance.These drawbacks limit rectangular billet CC is to more big cross section size (thickness>
Development 400mm).For the thick and large section continuous cast round billets of more than 400mm, thickness equally exists that internal shrinkage is loose and face crack
Deng gross imperfection.
Electron-beam cold bed furnace melting technique is different from traditional vacuum consumable electrode arc furnace melting and continuous casting technology, and which is by melting
Area is separated with cold bed with casting area, while conveniently can realizing casting in melting, is also capable of achieving to realize " mending while casting
Contracting ".But the impurity and gas of crystallizer inwall are involved in into casting head easily in casting initial stage molten metal and form pore (bubble),
And if feeding (insulation) is not carried out after casting terminates, it is easy to formed rising head, section cracking etc. casting flaw.General employing is cut
The method that truncates of head, to eliminate impact of the defect to following process, but adopts this method, under making the lumber recovery of ingot casting greatly
Drop.
The content of the invention
Present invention aim to address the deficiencies in the prior art, there is provided one kind can reduce ingot casting crop, back-end crop amount, improve electricity
The lumber recovery of beamlet cold hearth melting strand, solves the defects such as rectangular cross section strand internal shrinkage, loose and section breach, improves
The electron-beam cold bed furnace rectangle melting section feeding technology of the head, the titanium of the casting quality of afterbody or titanium alloy of casting slab.
To solve above-mentioned technical problem, the technical solution used in the present invention is as follows：
The electron-beam cold bed furnace rectangle melting section feeding technology of a kind of titanium or titanium alloy, the method are comprised the following steps：
(1) need the feeding section, the method for determination for determining electron-beam cold bed furnace ingot casting is, long to ingot by casting face is started
Casting head is defined as within 100mm；After the material of charging basket all adds the melting cold bed of electron-beam cold bed furnace, confirm now
Cast length is defined as ingot casting afterbody within the long 150mm of tail end face by the position of ingot length；
(2) stop charging, after material all melts, will be responsible for scanning beam cold hearth smelting zone, fining cell and pour
The electron gun in casting area cuts out, until crystallizer of the casting gate without molten metal stream time to electron-beam cold bed furnace；Keep the length of ingot casting
Position is constant, maintains liquid level position in crystallizer；
(3) start to perform feeding, the electron gun scanning patter that will be responsible for scanning beam cold hearth crystallizer is adjusted,
Adjustment order is " horizontal two vertical three translation ", i.e., first scanning patter widthwise size is adjusted, then its longitudinal size is carried out
Adjustment, finally carries out horizontal translation adjustment to scan position；The width laterally for ingot casting, thickness of the longitudinal direction for ingot casting
Direction；
(4) if feeding position is casting head, after the completion of feeding, recover to be responsible for the electron gun scanning figure of scanning crystallizer
Shape size, recovers the scan power of its electron gun, and opens the scanning figure of the electron gun for being responsible for smelting zone, fining cell and casting area
Shape, after electron gun is stable, is directly cast；If feeding position is ingot casting afterbody, electron gun is directly closed.
The order that smelting zone described in above-mentioned steps (2), fining cell, the electron gun scanning patter of casting area are closed is first to close
Close smelting zone, turn off fining cell, finally close casting area, the shut-in time, interval was not less than 20s.
The scanning patter size of the recovery electron gun described in above-mentioned steps (4), the order of recovery is first recovery translation, then extensive
Multiple longitudinal direction, finally recovers horizontal；The order that scanning patter is opened is first to open casting area, then opens fining cell, finally opens molten
Refining area, the power decision loaded by the liquid fluidity and electron gun on cold bed by time of opening.
Present invention process is simple and convenient to operate, using effect is good, and what energy effectively solving rectangular slab head, afterbody occurred lacks
Fall into, such as pore, shrinkage cavity, end face breach etc., the removal amount of casting head is down to below 30mm, ingot casting by 100 original～110mm
The removal amount of afterbody is become without the need for cutting by 30～40mm that reason is come.The once lumber-preserving rate of ingot casting is substantially increased, can be obtained
Obvious economic interests.
Specific embodiment
Embodiment 1
The electron-beam cold bed furnace ingot casting rectangle melting section feeding technology of titanium or titanium alloy, comprises the following steps：
(1) determine electron-beam cold bed furnace ingot casting needs feeding section.With specification be 1050 × 210mm, feeding position for casting
As a example by the ingot casting of ingot afterbody, the method for determination is will to start casting face to be defined as casting head to the long 100mm of ingot；Work as charging basket
Material all add the melting cold bed of electron-beam cold bed furnace after, confirm the position of now ingot length, by cast length away from aft end
Ingot casting afterbody is defined as within the long 150mm in face；
(2) feed system of system is closed, stops charging, after material all melts, observe melting cold bed overflow
The mobility status of mouthful place's metal liquid, when flowing out without metal liquid at the overfall, the 1 of closing responsible smelting zone (Melting)#
Electron gun, when area (Refine) to be refined is flowed out without metal liquid with casting area (Overflow) place, turns off and is responsible for scanning essence
The 2 of refining area#Electron gun, finally cuts out and is responsible for the 3 of scanning casting area#Electron gun, shut-in time interval is not less than 20s, until casting
Crystallizer of the mouth without molten metal stream time to electron-beam cold bed furnace；Now, keep the extension position of ingot casting constant, maintain in crystallizer
Liquid level position；
(3) start to perform feeding technology, feeding process as shown in table 1, will be responsible for electron-beam cold bed furnace scanning crystallizer
Electron gun scanning patter is adjusted, and adjustment order is " horizontal two vertical three translation ", i.e., first scanning patter widthwise size is carried out
Adjustment, then its longitudinal size is adjusted, horizontal translation adjustment is carried out to scan position finally；The width laterally for ingot casting
Degree direction, thickness direction of the longitudinal direction for ingot casting；
(4), after the completion of feeding, close and be responsible for the 4 of scanning crystallizer#Electron gun.
1 feeding technology plan of table
In table 1, a is feature size coefficient, and b is scan position coefficient, and c is spot size coefficient, and d is graphic width system
Number, "-" represent closing, and " 0 " represents original state.
Embodiment 2
The electron-beam cold bed furnace ingot casting rectangle melting section feeding technology of titanium or titanium alloy, comprises the following steps：
(1) determine electron-beam cold bed furnace ingot casting needs feeding section.With specification as 1380 × 210mm, feeding position is casting
As a example by head of ingot portion as a example by the ingot casting of (melting is interrupted in burst, carries out connecing ingot by feeding technology), the method for determination is to start casting
Face is defined as casting head to the long 100mm of ingot；After the material of charging basket all adds the melting cold bed of electron-beam cold bed furnace,
Confirm the position of now ingot length, cast length is defined as into ingot casting afterbody within the long 150mm of tail end face；
(2) when the casting head length of casting is 80mm, the feed system of system is closed, stops charging, treat cold bed
On material all melt after, observe the mobility status of metal liquid at melting cold bed overflow head piece, without metal at the overfall
When liquid flows out, the 1 of responsible smelting zone (Melting) is closed#Electron gun, area (Refine) to be refined and casting area
(Overflow), when place is flowed out without metal liquid, turn off and be responsible for the 2 of scanning fining cell#Electron gun, finally cuts out and is responsible for scanning
The 3 of casting area#Electron gun, shut-in time interval is not less than 20s, until casting gate is plowed to electron-beam cold bed furnace without molten metal stream
Crystallizer；Now, keep the extension position of ingot casting constant, maintain liquid level position in crystallizer；
(3) start to perform feeding technology, feeding process as shown in table 2, will be responsible for electron-beam cold bed furnace scanning crystallizer
Electron gun scanning patter is adjusted, and adjustment order is " horizontal two vertical three translation ", i.e., first scanning patter widthwise size is carried out
Adjustment, then its longitudinal size is adjusted, horizontal translation adjustment is carried out to scan position finally；The width laterally for ingot casting
Degree direction, thickness direction of the longitudinal direction for ingot casting；
(4) after the completion of feeding, recover to be responsible for the 4 of scanning crystallizer#Electron gun scanning patter size, recovers its electron gun
Scan power, and open be responsible for scanning smelting zone 1#Electron gun, be responsible for scanning fining cell 2#Electron gun and responsible scanning are poured
The 3 of casting area#The scanning patter of electron gun, after electron gun is stable, opens the electron gun of smelting zone, after continuation melting directly
Cast.Recover the order of recovery of electron gun scanning patter size first to recover translation, then recover longitudinal direction, finally recover horizontal
To；The order that scanning patter is opened is first to open casting area, then opens fining cell, finally opens smelting zone, time of opening by
The power decision loaded by liquid fluidity and electron gun on cold bed.
2 feeding technology plan of table
Remarks：A is graphic length coefficient, and b is scan position coefficient, and c is spot size coefficient, and d is graphic width coefficient,
"-" represents closing, and " 0 " represents original state
Electron-beam cold bed furnace of the present invention is prior art device.
The present invention carries out feeding by the section to ingot casting base, eliminates ingot casting head, the shrinkage cavity of tail and end face cracking, improves and dredge
Pine.
Claims (3)
1. the electron-beam cold bed furnace ingot casting rectangle melting section feeding technology of a kind of titanium or titanium alloy, it is characterised in that include with
Lower step：
(1) determine electron-beam cold bed furnace ingot casting need feeding section, the method for determination be will start casting face to the long 100mm of ingot with
Casting head is defined as inside；When the material of charging basket all adds the melting cold bed of electron-beam cold bed furnace after, now ingot length is confirmed
Cast length is defined as ingot casting afterbody within the long 150mm of tail end face by position；
(2) stop charging, after material all melts, will be responsible for scanning beam cold hearth smelting zone, fining cell and casting area
Electron gun close, until crystallizer of the casting gate without molten metal stream time to electron-beam cold bed furnace；Keep the extension position of ingot casting
It is constant, maintain liquid level position in crystallizer；
(3) start to perform feeding, the electron gun scanning patter that will be responsible for scanning beam cold hearth crystallizer is adjusted, adjust
Order is " horizontal two vertical three translation ", i.e., first scanning patter widthwise size is adjusted, then its longitudinal size is adjusted,
Horizontal translation adjustment is carried out to scan position finally；The width laterally for ingot casting, thickness direction of the longitudinal direction for ingot casting；
(4) if feeding position is casting head, after the completion of feeding, the electron gun scanning patter for recovering to be responsible for scanning crystallizer is big
It is little, recover the scan power of its electron gun, and opening is responsible for the scanning patter of the electron gun of smelting zone, fining cell and casting area,
After electron gun is stable, directly cast；If feeding position is ingot casting afterbody, electron gun is directly closed.
2. the electron-beam cold bed furnace ingot casting rectangle melting section feeding work of a kind of titanium according to claim 1 or titanium alloy
Skill, it is characterised in that the order that smelting zone described in step (2), fining cell, the electron gun scanning patter of casting area are closed is for first
Close smelting zone, turn off fining cell, finally close casting area, the shut-in time, interval was not less than 20s.
3. the electron-beam cold bed furnace ingot casting rectangle melting section feeding work of a kind of titanium according to claim 1 or titanium alloy
Skill, it is characterised in that the electron gun scanning patter size of scanning crystallizer, the order of recovery are responsible in the recovery described in step (4)
First to recover translation, then recover longitudinal direction, finally recover horizontal；The order that scanning patter is opened is first to open casting area, then is opened
Fining cell, finally opens smelting zone, the power decision loaded by the liquid fluidity and electron gun on cold bed by time of opening.
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| CN105838899A (en) * | 2016-05-18 | 2016-08-10 | 青海聚能钛业有限公司 | Electron beam cold hearth single melted TC4 titanium alloy cast ingot head feeding process |
| CN107760878A (en) * | 2016-08-19 | 2018-03-06 | 宁波创润新材料有限公司 | The method of smelting of ingot casting |
| CN108220612B (en) * | 2018-01-19 | 2019-12-24 | 青海聚能钛业股份有限公司 | Processing method for smelting and recovering zirconium alloy by electron beam cold hearth furnace |
| CN109868389A (en) * | 2019-01-09 | 2019-06-11 | 青海聚能钛业股份有限公司 | A method of utilizing hot-cathode electric beam cold hearth melting TA2 ingot casting |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825243A (en) * | 2012-08-02 | 2012-12-19 | 云南钛业股份有限公司 | Technique for EB (Electron Beam) furnace smelting pure titanium feeding |
| CN103484691A (en) * | 2013-09-13 | 2014-01-01 | 攀枝花云钛实业有限公司 | Nickel and nickel alloy EB furnace smelting method |
| CN104212989A (en) * | 2014-08-28 | 2014-12-17 | 云南钛业股份有限公司 | Method for smelting and producing TA10 hot continuous rolling square billet by adopting electron beam cooling bed furnace |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0421727A (en) * | 1990-05-14 | 1992-01-24 | Daido Steel Co Ltd | Method and apparatus for producing titanium cast ingot |
| JPH04218626A (en) * | 1990-07-23 | 1992-08-10 | Nikko Kyodo Co Ltd | Production of high purity ingot of refractory material |
| JPH04131330A (en) * | 1990-09-21 | 1992-05-06 | Nikko Kyodo Co Ltd | Production of pure titanium or titanium alloy material |
-
2015
- 2015-09-07 CN CN201510561133.0A patent/CN105177317B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825243A (en) * | 2012-08-02 | 2012-12-19 | 云南钛业股份有限公司 | Technique for EB (Electron Beam) furnace smelting pure titanium feeding |
| CN103484691A (en) * | 2013-09-13 | 2014-01-01 | 攀枝花云钛实业有限公司 | Nickel and nickel alloy EB furnace smelting method |
| CN104212989A (en) * | 2014-08-28 | 2014-12-17 | 云南钛业股份有限公司 | Method for smelting and producing TA10 hot continuous rolling square billet by adopting electron beam cooling bed furnace |
Non-Patent Citations (1)
| Title |
|---|
| 2400KW电子束冷床炉熔炼纯钛生产实践及工艺控制;陈战乾等;《金属世界》;20090430(第2期);第39-42页 * |
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