CN105177329B - The method that a kind of electron-beam cold bed furnace working chamber condensate is quickly reclaimed - Google Patents
The method that a kind of electron-beam cold bed furnace working chamber condensate is quickly reclaimed Download PDFInfo
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- CN105177329B CN105177329B CN201510561356.7A CN201510561356A CN105177329B CN 105177329 B CN105177329 B CN 105177329B CN 201510561356 A CN201510561356 A CN 201510561356A CN 105177329 B CN105177329 B CN 105177329B
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Abstract
The method that condensate is quickly reclaimed in a kind of electron-beam cold bed furnace stove, it is after the completion of the ingot casting melting of heat, last root ingot casting is down to into electron-beam cold bed furnace and draws ingot station, working chamber is closed with the isolating valve for drawing ingot room, isolating valve of the vibration charging mouth with working chamber cuts out, the poppet of diffusion pump group is closed, booster pump is closed, is closed and is maintained pump bypass valve to make whole working chamber be in isolating seal state；Then to working chamber's applying argon gas, the air pressure to melting room is consistent with atmospheric pressure；Again refrigeration machine is connected with working chamber, refrigeration machine is opened and interior is cooled down, after the completion of cooling, close refrigeration machine, close the valve of refrigeration machine and working chamber；Working chamber's fire door bolt is finally unclamped, working chamber's bell is opened, opening axial blower fan will be the argon purging in melting room clean, you can condensate is reclaimed.The temperature of burner hearth can be quickly down to required temperature by the inventive method, on the premise of the production cycle is not affected, condensate in stove quickly be reclaimed.
Description
Technical field
The present invention relates to electron-beam cold bed furnace working chamber condensate recovery method technical field.
Background technology
Titanium alloy because its have density it is low, than strong high, high temperature resistant, corrosion-resistant, mechanical performance and good processing performance the advantages of
And be widely used.But often there is excessive crystal grain, component segregation, hole, split using Jing in the titanium alloy ingot of traditional method melting
Stricture of vagina, high density are mingled with and the deficiency such as are mingled with low-density, and the appearance of these defects was using can the parts of follow-up preparation
Occurs fatigue in journey.To improve its service life, one of the main divisions of the male role in traditional opera produces the noble and unsullied titanium alloy material of high-quality.
Electron beam cold hearth melting technology is that electron beam is combined with cold bed, carries out the metallurgy of melting in high vacuum conditions
Technology.The core of electron beam cold hearth melting skill is electron gun, and its operation principle is to produce electron bombardment negative electrode by tungsten filament
Block produces electron cloud, forms electron beam after accelerating to focus on via high pressure, and these electron beams have very high kinetic energy, when by electron beam
When being irradiated to material, the kinetic energy Transient transformation that accelerated electron institute has is to make material be raised to height in interior energy, and then short time
Temperature simultaneously melts, can effectively solving tradition method of smelting produced problem.It is high, molten as well as the vacuum of electron-beam cold bed furnace
Pond temperature is high, and the time that liquid metal keeps is long, in fusion process, while impurity volatilizees, fusing metal element evaporation
Amount is also than larger.Substantial amounts of volatile matter be condensed when condensing cover cover seizure.If condensate enrichment is excessive, condensing cover is not enough to
Its weight is born, molten bath of dropping in fusion process has a strong impact on product quality.Jing is sent out to the detection of volatile matter sample analysis
Existing, in volatile matter, main component is titanium, and content is up to 99.5%, and other are the low element of the titanium of pressure ratio containing saturated vapor (such as sodium, magnesium
Deng element), as volatile matter impurity content is less, which can be recycled.But operation is directly recycled existing
When, need to carry out blow-on after prolonged natural cooling to electron beam furnace, due in stove be in vacuum state, furnace heat without
Method spreads, and during blow-on, furnace temperature is higher, is easy to ignition and then will deposit stratiform dredge after low ignition point material and air contact
The volatile matter of loose structure ignites, and the burning of volatile matter not only can cause damage to the person of operator and equipment safety, can also
The quality of condensate is greatly declined, reduce the recovery value of condensate.
The content of the invention
The purpose of the present invention is for the deficiencies in the prior art, there is provided a kind of easy to operate, using effect is good, effectively can solve
Certainly condensate combustion problem in blow-on, the electron-beam cold bed furnace working chamber condensation of the convenient and swift recycling for realizing condensate
The method that thing is quickly reclaimed.
In order to achieve the above object, the technical solution used in the present invention is as follows：
The method that a kind of electron-beam cold bed furnace working chamber condensate is quickly reclaimed, method and step are as follows：
(1) after the completion of the ingot casting melting of heat, heat last root ingot casting will be worked as it will be down to electron-beam cold bed furnace and draw ingot work
Ingot room low level is drawn in position, and working chamber is closed with the isolating valve for drawing ingot room, and vibration charging mouth is recovered to maintenance station, vibration
Charge door and the isolating valve closing of working chamber, close the poppet of diffusion pump group, close booster pump, and closing maintenance pump bypass valve makes
Whole working chamber is in isolating seal state；
(2) the argon filling-valve of working chamber is opened, to working chamber's applying argon gas, treats that the air pressure in melting room is consistent with atmospheric pressure
When, stop applying argon gas；
(3) cryogenic temperature needed for setting on refrigeration machine, and refrigeration machine is connected into into a closed-loop with working chamber,
Open refrigeration machine to cool down interior, after the completion of cooling, close refrigeration machine, close the valve of refrigeration machine and working chamber；
(4) the fire door bolt of working chamber is unclamped, the bell of working chamber is opened, axial blower fan is opened and the argon in melting room is blown
Sweep clean, you can condensate is reclaimed.
Working chamber described in step (1) of the present invention is in isolating seal state, refers to close and all connects with working chamber
After valve, melting intraventricular pressure liter rate≤8Pa/h.The cryogenic temperature that refrigeration machine is arranged in step (3) is 20～25 DEG C.
Energy effectively solving condensate combustion problem in blow-on of the invention, the convenient and swift recovery for realizing condensate, effectively
Improve in traditional blow-on cause grade to decline as condensate burns and prepurging speed waits deficiency slowly.Which reclaims speed
Hurry up, do not affect manufacturing schedule, the condensate grade of recovery is high, reusable, it is possible to increase the response rate of product, obtains preferable
Economic benefit, and method is simple and convenient to operate.
Specific embodiment
The method that a kind of electron-beam cold bed furnace working chamber condensate is quickly reclaimed, method and step are as follows：
(1) after the completion of the ingot casting melting of heat, heat last root ingot casting will be worked as it will be down to electron-beam cold bed furnace and draw ingot work
Ingot room low level is drawn in position, and working chamber is closed with the isolating valve for drawing ingot room, and vibration charging mouth is recovered to maintenance station, vibration
Charge door and the isolating valve closing of working chamber, close the poppet of diffusion pump group, close booster pump, and closing maintenance pump bypass valve makes
Whole working chamber is in isolating seal state, and melting intraventricular pressure liter rate is 8Pa/h；
(2) the argon filling-valve of working chamber is opened, to working chamber's applying argon gas, treats that the air pressure in melting room is consistent with atmospheric pressure
When, stop applying argon gas；
(3) cryogenic temperature needed for setting on refrigeration machine, be traditionally arranged to be 20～25 DEG C (room temperature is set as 30 DEG C,
5～10 DEG C generally below room temperature)；Refrigeration machine is connected into into a closed-loop with working chamber, opening refrigeration machine is carried out to interior
Cooling, closes refrigeration machine after the completion of cooling, close the valve of refrigeration machine and working chamber；
(4) the fire door bolt of working chamber is unclamped, the bell of working chamber is opened, axial blower fan is opened and the argon in melting room is blown
Sweep clean, you can condensate is reclaimed.
Electron-beam cold bed furnace of the present invention be prior art device, working chamber and its argon that described its structure is included
Filling-valve, fire door bolt, bell, draw ingot room, vibration charging mouth, isolating valve, diffusion pump group and its poppet, close booster pump and its
Bypass valve, blower fan etc. are the existing structure part of electron-beam cold bed furnace, and the refrigeration machine is also prior art device.
Claims (2)
1. the method that a kind of electron-beam cold bed furnace working chamber condensate is quickly reclaimed, it is characterised in that method and step is as follows：
(1) after the completion of the ingot casting melting of heat, heat last root ingot casting will be worked as it will be down to electron-beam cold bed furnace and draw ingot station i.e.
Ingot room low level is drawn, working chamber is closed with the isolating valve for drawing ingot room, vibration charging mouth is recovered to maintenance station, vibration charging
Mouth and the isolating valve closing of working chamber, close the poppet of diffusion pump group, close booster pump, and cut out maintenance pump bypass valve makes entirely
Working chamber is in isolating seal state；
(2) the argon filling-valve of working chamber is opened, to working chamber's applying argon gas, when the air pressure in the melting room is consistent with atmospheric pressure,
Stop applying argon gas；
(3) cryogenic temperature needed for setting on refrigeration machine, and refrigeration machine is connected into into a closed-loop with working chamber, open
Refrigeration machine is cooled down to interior, and refrigeration machine is closed after the completion of cooling, closes the valve of refrigeration machine and working chamber；Refrigeration machine is arranged
Cryogenic temperature be 20～25 DEG C；
(4) the fire door bolt of working chamber is unclamped, the bell of working chamber is opened, opening axial blower fan will be the argon purging in melting room dry
Only, you can condensate is reclaimed.
2. the method that a kind of electron-beam cold bed furnace working chamber condensate as described in claim 1 is quickly reclaimed, it is characterised in that
Working chamber described in step (1) is in isolating seal state, after referring to all valves connected with working chamber of closing, in melting room
Pressure Rise Rate≤8Pa/h.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510561356.7A CN105177329B (en) | 2015-09-07 | 2015-09-07 | The method that a kind of electron-beam cold bed furnace working chamber condensate is quickly reclaimed |
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| CN201510561356.7A CN105177329B (en) | 2015-09-07 | 2015-09-07 | The method that a kind of electron-beam cold bed furnace working chamber condensate is quickly reclaimed |
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| CN105177329B true CN105177329B (en) | 2017-04-05 |
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| CN113249586B (en) * | 2021-03-22 | 2023-02-28 | 洛阳双瑞精铸钛业有限公司 | Double-layer condensation cover for smelting titanium alloy in EB (Electron Beam) furnace |
| CN113249587B (en) * | 2021-03-22 | 2022-10-18 | 洛阳双瑞精铸钛业有限公司 | Combined condensation cover for smelting titanium alloy in EB (Electron Beam) furnace |
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| CN102618733B (en) * | 2012-03-26 | 2013-12-04 | 洛阳双瑞精铸钛业有限公司 | Smelting recovery method for pure titanium waste blocks |
| CN104195354B (en) * | 2014-08-28 | 2016-08-03 | 云南钛业股份有限公司 | A kind of method that electron-beam cold bed furnace melting reclaimed materials obtains industrially pure titanium |
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