CN106424662A - Equipment and method of preparing cobalt-based alloy welding wire through counter-gravity vacuum suction casting - Google Patents
Equipment and method of preparing cobalt-based alloy welding wire through counter-gravity vacuum suction casting Download PDFInfo
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- CN106424662A CN106424662A CN201611060716.6A CN201611060716A CN106424662A CN 106424662 A CN106424662 A CN 106424662A CN 201611060716 A CN201611060716 A CN 201611060716A CN 106424662 A CN106424662 A CN 106424662A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/06—Vacuum casting, i.e. making use of vacuum to fill the mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/10—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
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Abstract
The invention provides counter-gravity vacuum suction casting forming equipment which comprises a vacuum induction melting furnace and a counter-gravity vacuum suction casting component; two ventilation holes are formed in the side walls of the vacuum induction melting furnace respectively; a crucible, a hopper arranged above the crucible and a cast mold arranged below the crucible are arranged in the vacuum induction melting furnace; an induction coil is wound outside the crucible; the counter-gravity vacuum suction casting component is composed of a vacuum tank, a vacuum pump and a quartz tube bundle; the vacuum pump is connected with the vacuum tank; and the vacuum tank is connected with the quartz tube bundle and is provided with a vacuum gauge. The invention also provides a method of preparing a cobalt-based alloy welding wire by utilizing the equipment. The method comprises the following steps: 1, incipient melting; 2, remelting; 3, counter-gravity vacuum suction casting; and 4, post-treating to obtain the cobalt-based alloy welding wire. With adoption of the prepared cobalt-based alloy welding wire, the performance can meet the relative technical requirements, and the finished product rate is high.
Description
Technical field
The invention belongs to metal working technical area is and in particular to a kind of antigravity suction pouring prepares cobalt-base alloy welding wire
Apparatus and method for.
Background technology
Cobalt-base alloy welding wire is based on cobalt, adds the casting alloy of the alloy meltings such as chromium, tungsten, nickel.It has firmly
The features such as degree height, wearability, corrosion resistance are strong, even if use, it may have excellent heat resistanceheat resistant is rotten under the high temperature higher than 1000 DEG C
Corrosion energy.Therefore, such alloy is mainly used in the surface overlayings such as valve, turbo blade for a long time, plays wear-and corrosion-resistant effect,
Thus greatly prolonging their service life.But this alloy rigidity is big, and moulding machine-shaping is extremely difficult, welding wire can not be using biography
The technique productions such as system rolling, cold drawing.Welding wire, welding wire surface matter are prepared using hot-pull technique by domestic at present only minority producer
Amount is poor, and manufacturing cycle is longer simultaneously.Cobalt-base alloy welding wire prepared by existing process, general diameter range is Ф 2mm～Ф
5mm, is relatively large in diameter and second-rate, seriously limits the application of cobalt-base alloy welding wire.
Up to now, not yet find that the correlation technique that any antigravity suction pouring prepares cobalt-base alloy welding wire is seen in report
Road.
Content of the invention
The technical problem to be solved is for above-mentioned the deficiencies in the prior art, provides a kind of antigravity
Suction pouring prepares the equipment of cobalt-base alloy welding wire.This equipment is capable of antigravity suction pouring thus preparing superior in quality
Cobalt-base alloy welding wire, be with a wide range of applications.
For solving above-mentioned technical problem, the technical solution used in the present invention is：A kind of antigravity vacuum suction casting forming equipment,
It is characterized in that, including vacuum induction melting furnace and antigravity suction pouring assembly, the side wall of described vacuum induction melting furnace is opened
It is provided with blow vent, be provided with crucible in described vacuum induction melting furnace, be located at the hopper above crucible and be located at below crucible
Mold, is wound with induction coil outside described crucible, and described antigravity suction pouring assembly includes vacuum tank, vacuum pump and quartz ampoule
Bundle, described vacuum pump is connected with vacuum tank by the first vacuum line, and described vacuum tank is connect by the second vacuum line and conversion
Head is connected with quartz tube bank, and described vacuum tank is provided with vacuum meter.
A kind of above-mentioned antigravity vacuum suction casting forming equipment is it is characterised in that described mold top is provided with rising head.
A kind of above-mentioned antigravity vacuum suction casting forming equipment is it is characterised in that be provided with described first vacuum line
First vacuum butterfly valve, described second vacuum line is provided with the second vacuum butterfly valve and vacuum breaker.
In addition, present invention also offers a kind of using the said equipment prepare cobalt-base alloy welding wire method it is characterised in that
The alloying element of described cobalt-base alloy welding wire includes Co, Cr, W, Ni, B and Mn, and the preparation method of described cobalt-base alloy welding wire includes
Following steps：
Step one, incipient melting：Alloying element Ni, B and Mn are added in hopper, by remaining alloy in addition to Ni, B and Mn
Element is added in crucible, then carries out evacuation process to vacuum induction melting furnace, treats that furnace pressure is down to 1 × 10-2Pa～9
×10-2After Pa, heat the material in melting crucible using induction coil, stop heating after refine 10min～15min, treat crucible
In fused materials solidification after, the material in hopper is added in crucible, then into vacuum induction melting furnace, is passed through argon,
Till furnace pressure is 0.06MPa～0.08MPa, continue with the material in induction coil heating melting crucible afterwards,
Stop heating after refine 10min～15min, after the fused materials solidification in crucible, reuse induction coil heating melting
Material in crucible, stops heating after refine 5min～10min, finally the fused materials in crucible is cast in mold, cold
But the demoulding after, obtains ingot casting；
Step 2, remelting：It is added to after ingot casting stripping and slicing described in step one in crucible, then to vacuum induction melting furnace
Carry out evacuation process, be down to after 1Pa～10Pa after furnace pressure, using the material in induction coil heating crucible, treat crucible
In material start melting after stop heating, be passed through argon into vacuum induction melting furnace, until furnace pressure be 0.06MPa～
Till 0.08MPa, continue with the material in induction coil heating crucible afterwards until it melts completely, obtain alloy molten solution；
Step 3, antigravity suction pouring：Quartz tube bank is put in vacuum induction melting furnace, is then entered using vacuum pump
Row evacuation is processed, and under conditions of vacuum meter reading is 0.05MPa～0.07MPa, quartz tube bank is inserted in step 2
Carry out antigravity suction pouring in described alloy molten solution, be full of after quartz tube bank after alloy molten solution, stop evacuation, to full of conjunction
The quartz tube bank of golden liquation carries out Water Quenching, then removes quartz tube bank, obtains cast bar；
Step 4, post processing：Cast bar described in step 3 is carried out successively swage, vacuum annealing and drawing process, finally
Obtain cobalt-base alloy welding wire；The cross sectional shape of described cobalt-base alloy welding wire is circle, the diameter of section of described cobalt-base alloy welding wire
For 1.0mm～1.5mm.
Above-mentioned method is it is characterised in that the alloying element B being added in step one in hopper is with Ni-B intermediate alloy
Form is allocated into, and alloying element Mn is allocated in the form of Ni-Mn intermediate alloy, and alloying element Ni is with described Ni-B intermediate alloy, institute
State Ni-Mn intermediate alloy and the form of Ni paper tinsel is allocated into；In described Ni-B intermediate alloy, the weight/mass percentage composition of B is 4%～10%,
In described Ni-Mn intermediate alloy, the weight/mass percentage composition of Mn is 40%～70%.
Above-mentioned method is it is characterised in that the cross sectional shape of cast bar described in step 3 is circle, the section of described cast bar
A diameter of 6mm.
It is characterised in that the road number of times swaged described in step 4 is 15～20 passages, every time swages above-mentioned method
Radial direction sizing reduction be 0.1mm～0.4mm.
Above-mentioned method is it is characterised in that the detailed process of vacuum annealing described in step 4 is：By the cast bar after swaging
It is placed in vacuum annealing furnace, in vacuum≤5.0 × 10-1Under conditions of Pa, the cast bar after swaging is first with the liter of 10 DEG C/min
Warm ramp is incubated 30min to after 900 DEG C, is then warming up to insulation 30min after 1200 DEG C with the heating rate of 4 DEG C/min,
Cool to 400 DEG C afterwards with the furnace, last argon filling is cooled to 25 DEG C of room temperatures.
Above-mentioned method it is characterised in that drawing described in step 4 road number of times be 1～4 passage, every time drawing
Radial direction sizing reduction is 0.05mm～0.1mm.
The present invention compared with prior art has advantages below：
1st, the present invention prepares cast bar using argon protection suction casting method.Process for suction casting is a kind of machine parts'precise molding side
Method, can be used in the casting of difficult machine-shaping alloy, has the advantages that process is simple, high yield rate, casting quality are good.Mesh
The front domestic antigravity vacuum suction casting technique that yet there are no is for the report of cobalt-base alloy welding wire production.
2nd, the present invention solves the big ingot casting of Co based alloy and is difficult to the deficiencies such as deformation, technological process length.Importantly,
Inhale casting by accurate, can quickly implement the swaging of small size bar, drawing process, cracking when overcoming big ingot casting processing,
The low defect of high energy consumption, yield rate.
With reference to the accompanying drawings and examples the present invention is described in further detail.
Brief description
Fig. 1 is the structural representation of antigravity vacuum suction casting forming equipment of the present invention.
Description of reference numerals:
1 vacuum induction melting furnace；2 vacuum tanks；3 vacuum pumps；
4 vacuum meters；5 induction coils；6 crucibles；
7 molds；8 rising heads；9 quartz tube banks；
10 blow vents；11 hoppers；12-1 first vacuum line；
12-2 second vacuum line；13-1 first vacuum butterfly valve；13-2 second vacuum butterfly valve；
14 vacuum breakers.
Specific embodiment
The structure of antigravity vacuum suction casting forming equipment of the present invention is described by embodiment 1.
Embodiment 1
A kind of antigravity vacuum suction casting forming equipment as shown in Figure 1, including vacuum induction melting furnace 1 and antigravity vacuum
Inhale casting assembly, the side wall of described vacuum induction melting furnace 1 offers blow vent 10, is provided with described vacuum induction melting furnace 1
Crucible 6, the hopper 11 being located at crucible 6 top and the mold 7 being located at crucible 6 lower section, are wound with induction coil 5 outside described crucible 6,
Described antigravity suction pouring assembly includes vacuum tank 2, vacuum pump 3 and quartz tube bank 9, and described vacuum pump 3 passes through the first vacuum
Pipeline 12-1 is connected with vacuum tank 2, and described vacuum tank 2 is connected with adapter by the second vacuum line 12-2, adapter
It is connected with quartz tube bank 9, described vacuum tank 2 is provided with vacuum meter 4.
In the present embodiment, one end of adapter offers the vacuum tube plug jack for connecting the second vacuum line 12-2,
The other end offers multiple quartz ampoule jacks plugging quartz ampoule for connection.Adapter is also designed to other structures, only
It is capable of the second vacuum line 12-2 and quartz tube bank 9 closely connect.
As shown in figure 1, described mold 7 top is provided with rising head 8.
As shown in figure 1, the first vacuum butterfly valve 13-1, described second vacuum tube are provided with described first vacuum line 12-1
Second vacuum butterfly valve 13-2 and vacuum breaker 14 are provided with the 12-2 of road.
The present invention passes through embodiment 2 to reality using the method that antigravity vacuum suction casting forming equipment prepares cobalt-base alloy welding wire
Apply example 5 to be described.
Embodiment 2
The present embodiment cobalt-base alloy welding wire to be prepared includes the composition of following mass percent：C：0.55%, Cr：
25.5%, W：7.5%, Si：0.85%, Fe：1%, Ni：10.5%, Mn：0.85%, B：0.0065%, Co：Surplus.In conjunction with figure
1, the present embodiment using the method that antigravity vacuum suction casting forming equipment as described in Example 1 prepares cobalt-base alloy welding wire include with
Lower step：
Step one, incipient melting：In the Ni-B intermediate alloy and Ni-Mn that Mn mass content is 60% that B mass content is 6%
Between alloy with Ni paper tinsel cladding after be added in hopper 11, remaining all of alloying element is added in crucible 6, then to vacuum
Induction melting furnace 1 carries out evacuation process, treats that furnace pressure is down to 3 × 10-2After Pa, heat melting crucible 6 using induction coil 5
In material, after refine 12min stop heating, after in crucible 6 fused materials solidification after, the material in hopper 11 is added to
In crucible 6, then into vacuum induction melting furnace 1, it is passed through argon, till furnace pressure is 0.07MPa, continue profit afterwards
Heat the material in melting crucible 6 with induction coil 5, after refine 12min, stop heating, treat the fused materials solidification in crucible 6
Afterwards, reuse the material in induction coil 5 heating melting crucible 6, stop heating after refine 8min, finally by crucible 6
Fused materials are cast in mold 7, the demoulding after cooling, obtain the ingot casting that specification is Φ 45mm × 250mm；
Step 2, remelting：To be added to after ingot casting stripping and slicing described in step one in crucible 6, then utilize to vacuum induction
Smelting furnace 1 carries out evacuation process, is down to after 3Pa after furnace pressure, using the material in induction coil 5 heating crucible 6, treats earthenware
Material in crucible 6 stops heating after starting melting, is passed through argon into vacuum induction melting furnace 1, until furnace pressure is
Till 0.07MPa, continue with the material in induction coil 5 heating crucible 6 afterwards until it melts completely, obtain alloy and melt
Liquid；
Step 3, antigravity suction pouring：Quartz tube bank 9 is put in vacuum induction melting furnace 1, is then turned on vacuum pump
3 carry out evacuation process, so that the gas in vacuum induction melting furnace 1 is pumped in vacuum tank 2, in vacuum meter 4 reading are
Under conditions of 0.04MPa, quartz tube bank 9 is inserted in alloy molten solution described in step 2 and carries out antigravity suction pouring, treat
After alloy molten solution is full of quartz tube bank 9, stop evacuation, Water Quenching is carried out to the quartz tube bank 9 full of alloy molten solution, then
Removing quartz tube bank 9, obtaining cross sectional shape is circle, and diameter of section is the cast bar of 6.0mm；
Step 4, following process is carried out successively to cast bar described in step 3：
Step 401, swage：Carry out multi-pass to cast bar to swage, the machined parameters swaged are shown in Table 1.
Table 1 cast bar is swaged machined parameters
Step 402, vacuum annealing：Cast bar after swaging in step 401 is placed in vacuum annealing furnace, vacuum≤
5.0×10-1Under conditions of Pa, the cast bar after swaging first is warming up to insulation after 900 DEG C with the heating rate of 10 DEG C/min
30min, is then warming up to insulation 30min after 1200 DEG C with the heating rate of 4 DEG C/min, cools to 400 DEG C afterwards with the furnace, finally
Argon filling is cooled to 25 DEG C of room temperatures；
Step 403, drawing：2 passage drawings, the footpath of every time drawing will be carried out one by one after vacuum annealing in step 402
It is 0.1mm to sizing reduction, finally giving cross sectional shape is circle, and diameter of section is the cobalt-base alloyss welding rod of 1.5mm.
Embodiment 3
The present embodiment cobalt-base alloy welding wire to be prepared includes the composition of following mass percent：C：1.2%th, Cr：
29%th, W：4.7%th, Si：1.2%th, Mo：0.1%th, Fe：1.5%th, Ni：2.2%th, B：0.05%th, Mn：0.3%th, Co：Surplus.Knot
Close Fig. 1, the present embodiment prepares the method bag of cobalt-base alloy welding wire using antigravity vacuum suction casting forming equipment as described in Example 1
Include following steps：
Step one, incipient melting：In the Ni-B intermediate alloy and Ni-Mn that Mn mass content is 50% that B mass content is 8%
Between alloy with Ni paper tinsel cladding after be added in hopper 11, remaining all of alloying element is added in crucible 6, then to vacuum
Induction melting furnace 1 carries out evacuation process, treats that furnace pressure is down to 6 × 10-2After Pa, heat melting crucible 6 using induction coil 5
In material, after refine 12min stop heating, after in crucible 6 fused materials solidification after, the material in hopper 11 is added to
In crucible 6, then into vacuum induction melting furnace 1, it is passed through argon, till furnace pressure is 0.06MPa, continue profit afterwards
Heat the material in melting crucible 6 with induction coil 5, after refine 12min, stop heating, treat the fused materials solidification in crucible 6
Afterwards, reuse the material in induction coil 5 heating melting crucible 6, stop heating, the demoulding after cooling after refine 6min, obtain
Specification is Φ 45mm × 250mm ingot casting；
Step 2, remelting：To be added to after ingot casting stripping and slicing described in step one in crucible 6, then to vacuum induction melting
Stove 1 carries out evacuation process, is down to after 5Pa after furnace pressure, using the material in induction coil 5 heating crucible 6, treats crucible 6
In material start melting after stop heating, be passed through argon into vacuum induction melting furnace 1, until furnace pressure be 0.06MPa
Till, continue with the material in induction coil 5 heating crucible 6 afterwards until it melts completely, obtain alloy molten solution；
Step 3, antigravity suction pouring：Quartz tube bank 9 is put in vacuum induction melting furnace 1, is then turned on vacuum pump
3 carry out evacuation process, so that the gas in vacuum induction melting furnace 1 is pumped in vacuum tank 2, in vacuum meter 4 reading are
Under conditions of 0.06MPa, quartz tube bank 9 is inserted in alloy molten solution described in step 2 and carries out antigravity suction pouring, treat
After alloy molten solution is full of quartz tube bank 9, stop evacuation, Water Quenching is carried out to the quartz tube bank 9 full of alloy molten solution, then
Removing quartz tube bank 9, obtaining cross sectional shape is circle, and diameter of section is the cast bar of 6.0mm；
Step 4, following process is carried out successively to cast bar described in step 3：
Step 401, swage：Carry out multi-pass to cast bar to swage, the machined parameters swaged are shown in Table 2.
Table 2 embodiment 3 cast bar is swaged machined parameters
Step 402, vacuum annealing：Cast bar after swaging in step 401 is placed in vacuum annealing furnace, vacuum≤
5.0×10-1Under conditions of Pa, the cast bar after swaging first is warming up to insulation after 900 DEG C with the heating rate of 10 DEG C/min
30min, is then warming up to insulation 30min after 1200 DEG C with the heating rate of 4 DEG C/min, cools to 400 DEG C afterwards with the furnace, finally
Argon filling is cooled to 25 DEG C of room temperatures；
Step 403, drawing：4 passage drawings, the footpath of every time drawing will be carried out one by one after vacuum annealing in step 402
It is 0.05mm to sizing reduction, finally giving cross sectional shape is circle, and diameter of section is the cobalt-base alloyss welding rod of 1.0mm.
Embodiment 4
The present embodiment cobalt-base alloy welding wire to be prepared includes the composition of following mass percent：C：1.4%th, Cr：
28%th, W：5%th, Si：1.5%th, Mo：0.15%th, Fe：1.8%th, Ni：2.8%th, B：0.08%th, Mn：0.25%th, Co：Surplus.Knot
Close Fig. 1, the present embodiment prepares the method bag of cobalt-base alloy welding wire using antigravity vacuum suction casting forming equipment as described in Example 1
Include following steps：
Step one, incipient melting：By B mass content be 10% Ni-B intermediate alloy and Ni-Mn that Mn mass content is 40%
Intermediate alloy is added in hopper 11 with after Ni paper tinsel cladding, remaining all of alloying element is added in crucible 6, then to true
Empty induction melting furnace 1 carries out evacuation process, treats that furnace pressure is down to 9 × 10-2After Pa, heat melting earthenware using induction coil 5
Material in crucible 6, stops heating after refine 15min, after the fused materials solidification in crucible 6, the material in hopper 11 is added
Enter in crucible 6, then into vacuum induction melting furnace 1, be passed through argon, until furnace pressure be 0.075MPa till, follow-up
Material in the continuous heating melting crucible 6 using induction coil 5, stops heating after refine 15min, treats the fused materials in crucible 6
After solidification, reuse the material in induction coil 5 heating melting crucible 6, stop after refine 10min heating, the demoulding after cooling,
Obtaining specification is Φ 50mm × 250mm ingot casting；
Step 2, remelting：To be added to after ingot casting stripping and slicing described in step one in crucible 6, then to vacuum induction melting
Stove 1 carries out evacuation process, is down to after 10Pa after furnace pressure, using the material in induction coil 5 heating crucible 6, treats crucible 6
In material start melting after stop heating, be passed through argon into vacuum induction melting furnace 1, until furnace pressure be 0.075MPa
Till, continue with the material in induction coil 5 heating crucible 6 afterwards until it melts completely, obtain alloy molten solution；
Step 3, antigravity suction pouring：Quartz tube bank 9 is put in vacuum induction melting furnace 1, is then turned on vacuum pump
3 carry out evacuation process, so that the gas in vacuum induction melting furnace 1 is pumped in vacuum tank 2, in vacuum meter 4 reading are
Under conditions of 0.07MPa, quartz tube bank 9 is inserted in alloy molten solution described in step 2 and carries out antigravity suction pouring, treat
After alloy molten solution is full of quartz tube bank 9, stop evacuation, Water Quenching is carried out to the quartz tube bank 9 full of alloy molten solution, then
Removing quartz tube bank 9, obtaining cross sectional shape is circle, and diameter of section is the cast bar of 6.0mm；
Step 4, following process is carried out successively to cast bar described in step 3：
Step 401, swage：Carry out multi-pass to cast bar to swage, the machined parameters swaged are shown in Table 3.
Table 3 embodiment 4 cast bar is swaged machined parameters
Step 402, vacuum annealing：Cast bar after swaging in step 401 is placed in vacuum annealing furnace, vacuum≤
5.0×10-1Under conditions of Pa, the cast bar after swaging first is warming up to insulation after 900 DEG C with the heating rate of 10 DEG C/min
30min, is then warming up to insulation 30min after 1200 DEG C with the heating rate of 4 DEG C/min, cools to 400 DEG C afterwards with the furnace, finally
Argon filling is cooled to 25 DEG C of room temperatures；
Step 403, drawing：3 passage drawings, the footpath of every time drawing will be carried out one by one after vacuum annealing in step 402
It is 0.1mm to sizing reduction, finally giving cross sectional shape is circle, and diameter of section is the cobalt-base alloyss welding rod of 1.2mm.
Embodiment 5
The present embodiment cobalt-base alloy welding wire to be prepared includes the composition of following mass percent：C：0.9%th, Cr：
30%th, W：4.5%th, Si：1.0%th, Mo：0.3%th, Fe：1.0%th, Ni：2.0%th, B：0.07%th, Mn：0.2%th, Co：Surplus.Knot
Close Fig. 1, the present embodiment prepares the method bag of cobalt-base alloy welding wire using antigravity vacuum suction casting forming equipment as described in Example 1
Include following steps：
Step one, incipient melting：In the Ni-B intermediate alloy and Ni-Mn that Mn mass content is 40% that B mass content is 4%
Between alloy with Ni paper tinsel cladding after be added in hopper 11, remaining all of alloying element is added in crucible 6, then to vacuum
Induction melting furnace 1 carries out evacuation process, treats that furnace pressure is down to 1 × 10-2After Pa, heat melting crucible 6 using induction coil 5
In material, after refine 10min stop heating, after in crucible 6 fused materials solidification after, the material in hopper 11 is added to
In crucible 6, then into vacuum induction melting furnace 1, it is passed through argon, till furnace pressure is 0.08MPa, continue profit afterwards
Heat the material in melting crucible 6 with induction coil 5, after refine 10min, stop heating, treat the fused materials solidification in crucible 6
Afterwards, reuse the material in induction coil 5 heating melting crucible 6, stop heating, the demoulding after cooling after refine 5min, obtain
Specification is Φ 40mm × 250mm ingot casting；
Step 2, remelting：To be added to after ingot casting stripping and slicing described in step one in crucible 6, then to vacuum induction melting
Stove 1 carries out evacuation process, is down to after 1Pa after furnace pressure, using the material in induction coil 5 heating crucible 6, treats crucible 6
In material start melting after stop heating, be passed through argon into vacuum induction melting furnace 1, until furnace pressure be 0.08MPa
Till, continue with the material in induction coil 5 heating crucible 6 afterwards until it melts completely, obtain alloy molten solution；
Step 3, antigravity suction pouring：Quartz tube bank 9 is put in vacuum induction melting furnace 1, is then turned on vacuum pump
3 carry out evacuation process, so that the gas in vacuum induction melting furnace 1 is pumped in vacuum tank 2, in vacuum meter 4 reading are
Under conditions of 0.05MPa, quartz tube bank 9 is inserted in alloy molten solution described in step 2 and carries out antigravity suction pouring, treat
After alloy molten solution is full of quartz tube bank 9, stop evacuation, Water Quenching is carried out to the quartz tube bank 9 full of alloy molten solution, then
Removing quartz tube bank 9, obtaining cross sectional shape is circle, and diameter of section is the cast bar of 6.0mm；
Step 4, following process is carried out successively to cast bar described in step 3：
Step 401, swage：Carry out multi-pass to cast bar to swage, the machined parameters swaged are shown in Table 4.
Table 4 embodiment 5 cast bar is swaged machined parameters
Step 402, vacuum annealing：Cast bar after swaging in step 401 is placed in vacuum annealing furnace, vacuum≤
5.0×10-1Under conditions of Pa, the cast bar after swaging first is warming up to insulation after 900 DEG C with the heating rate of 10 DEG C/min
30min, is then warming up to insulation 30min after 1200 DEG C with the heating rate of 4 DEG C/min, cools to 400 DEG C afterwards with the furnace, finally
Argon filling is cooled to 25 DEG C of room temperatures；
Step 403, drawing：1 passage drawing, the radial direction tube reducing of drawing will be carried out one by one after vacuum annealing in step 402
Measure as 0.1mm, finally giving cross sectional shape is circle, and diameter of section is the cobalt-base alloyss welding rod of 1.0mm.
The above, be only presently preferred embodiments of the present invention, not the present invention imposed any restrictions.Every according to invention skill
Any simple modification, change and equivalence changes that art is substantially made to above example, all still fall within technical solution of the present invention
Protection domain in.
Claims (9)
1. a kind of antigravity vacuum suction casting forming equipment is it is characterised in that include vacuum induction melting furnace (1) and antigravity vacuum
Inhale casting assembly, the side wall of described vacuum induction melting furnace (1) offers blow vent (10), in described vacuum induction melting furnace (1)
It is provided with crucible (6), be located at the hopper (11) above crucible (6) and the mold (7) below crucible (6), described crucible (6)
It is wound with outward induction coil (5), described antigravity suction pouring assembly includes vacuum tank (2), vacuum pump (3) and quartz tube bank
(9), described vacuum pump (3) is connected with vacuum tank (2) by the first vacuum line (12-1), and described vacuum tank (2) passes through second
Vacuum line (12-2) and adapter are connected with quartz tube bank (9), and described vacuum tank (2) is provided with vacuum meter (4).
2. a kind of antigravity vacuum suction casting forming equipment according to claim 1 is it is characterised in that described mold (7) pushes up
Portion is provided with rising head (8).
3. a kind of antigravity vacuum suction casting forming equipment according to claim 1 is it is characterised in that described first vacuum tube
First vacuum butterfly valve (13-1) is provided with road (12-1), described second vacuum line (12-2) is provided with the second vacuum butterfly valve
(13-2) with vacuum breaker (14).
4. a kind of prepare the method for cobalt-base alloy welding wire using equipment as described in claim 1,2 or 3 it is characterised in that described
The alloying element of cobalt-base alloy welding wire includes Co, Cr, W, Ni, B and Mn, and the preparation method of described cobalt-base alloy welding wire includes following
Step：
Step one, incipient melting：Alloying element Ni, B and Mn are added in hopper (11), by remaining alloy in addition to Ni, B and Mn
Element is added in crucible (6), then carries out evacuation process to vacuum induction melting furnace (1), treat furnace pressure be down to 1 ×
10-2Pa～9 × 10-2After Pa, heat the material in melting crucible (6) using induction coil (5), after refine 10min～15min
Stop heating, after in crucible (6) fused materials solidification after, the material in hopper (11) is added in crucible (6), then to
Vacuum induction melting furnace is passed through argon in (1), till furnace pressure is 0.06MPa～0.08MPa, continues with sense afterwards
Answer the material in coil (5) heating melting crucible (6), stop heating after refine 10min～15min, treat the melting in crucible (6)
After material solidification, reuse the material in induction coil (5) heating melting crucible (6), stop after refine 5min～10min adding
Heat, finally the fused materials in crucible (6) is cast in mold (7), the demoulding after cooling, obtains ingot casting；
Step 2, remelting：To be added to after ingot casting stripping and slicing described in step one in crucible (6), then to vacuum induction melting furnace
(1) carry out evacuation process, be down to after 1Pa～10Pa after furnace pressure, using the thing in induction coil (5) heating crucible (6)
Material, starts to stop heating after melting after the material in crucible (6), is passed through argon into vacuum induction melting furnace (1), until in stove
Till pressure is 0.06MPa～0.08MPa, continue with the material in induction coil (5) heating crucible (6) afterwards until it is complete
Full-fusing, obtains alloy molten solution；
Step 3, antigravity suction pouring：Quartz tube bank (9) is put in vacuum induction melting furnace (1), is then turned on vacuum pump
(3) carry out evacuation process, under conditions of vacuum meter (4) reading is 0.05MPa～0.07MPa, by quartz tube bank (9) insertion
Carry out antigravity suction pouring to alloy molten solution described in step 2, be full of quartz tube bank (9) after alloy molten solution and stop afterwards taking out
Vacuum, carries out Water Quenching to quartz tube bank (9) full of alloy molten solution, then removes quartz tube bank (9), obtain cast bar；
Step 4, post processing：Cast bar described in step 3 is carried out successively swage, vacuum annealing and drawing process, finally give
Cobalt-base alloy welding wire；The cross sectional shape of described cobalt-base alloy welding wire is circle, and the diameter of section of described cobalt-base alloy welding wire is
1.0mm～1.5mm.
5. method according to claim 4 is it is characterised in that the alloying element B that is added in step one in hopper (11)
Allocated in the form of Ni-B intermediate alloy, alloying element Mn is allocated in the form of Ni-Mn intermediate alloy, alloying element Ni is with described
The form of Ni-B intermediate alloy, described Ni-Mn intermediate alloy and Ni paper tinsel is allocated into；The percent mass of B in described Ni-B intermediate alloy
Content is 4%～10%, and in described Ni-Mn intermediate alloy, the weight/mass percentage composition of Mn is 40%～70%.
6. method according to claim 4 is it is characterised in that the cross sectional shape of cast bar described in step 3 is circle, institute
The diameter of section stating cast bar is 6mm.
7. method according to claim 4 is it is characterised in that the road number of times swaged described in step 4 is 15～20 roads
Secondary, the radial direction sizing reduction that every time is swaged is 0.1mm～0.4mm.
8. method according to claim 4 is it is characterised in that the detailed process of vacuum annealing described in step 4 is：Will
Cast bar after swaging is placed in vacuum annealing furnace, in vacuum≤5.0 × 10-1Under conditions of Pa, first with the intensification of 10 DEG C/min
Ramp is incubated 30min to after 900 DEG C, is then warming up to insulation 30min after 1200 DEG C with the heating rate of 4 DEG C/min, it
After cool to 400 DEG C with the furnace, last argon filling is cooled to 25 DEG C of room temperatures.
9. method according to claim 4 it is characterised in that drawing described in step 4 road number of times be 1～4 passage,
The radial direction sizing reduction of every time drawing is 0.05mm～0.1mm.
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| CN111906474A (en) * | 2020-07-03 | 2020-11-10 | 北京机电研究所有限公司 | High-carbon cobalt chromium tungsten welding wire and preparation method thereof |
| CN113042934A (en) * | 2021-03-12 | 2021-06-29 | 北京北冶功能材料有限公司 | Preparation method of cobalt-based wear-resistant welding wire with high purity and high density |
| CN113134596A (en) * | 2021-04-22 | 2021-07-20 | 鞍钢股份有限公司 | Preparation method of low-oxygen-content rare earth filament |
| CN113210455A (en) * | 2021-04-08 | 2021-08-06 | 钢铁研究总院 | Preparation method of high-temperature-resistant wear-resistant cobalt-based alloy wire |
| CN115592299A (en) * | 2022-10-18 | 2023-01-13 | 中国航发北京航空材料研究院（Cn） | Short-process preparation equipment and method for hard-to-deform alloy welding wire |
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| CN116790925A (en) * | 2023-08-29 | 2023-09-22 | 成都虹波实业股份有限公司 | Casting method of cobalt-chromium-molybdenum welding wire thin rod |
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