CN111842912A - Production method of low-oxygen high-titanium-iron alloy powder - Google Patents
Production method of low-oxygen high-titanium-iron alloy powder Download PDFInfo
- Publication number
- CN111842912A CN111842912A CN202010577255.XA CN202010577255A CN111842912A CN 111842912 A CN111842912 A CN 111842912A CN 202010577255 A CN202010577255 A CN 202010577255A CN 111842912 A CN111842912 A CN 111842912A
- Authority
- CN
- China
- Prior art keywords
- titanium
- alloy powder
- low
- iron alloy
- ferrotitanium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/0848—Melting process before atomisation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
A production method of low-oxygen high-titanium-iron alloy powder comprises the following steps: starting a power supply of the medium-frequency induction furnace, filling pure iron blocks, heating and smelting, adding external sponge titanium and covering agent calcium oxide after pure iron is molten, smelting at 1350 ℃ for 30min, adding 75# ferrosilicon powder and silicon-barium alloy, smelting, closing the power supply of the medium-frequency induction furnace, and slagging off to obtain ferrotitanium alloy liquid; injecting ferrotitanium liquid into a heat-preservation tundish, enabling the ferrotitanium liquid to flow out of a flow guide port at the bottom of the tundish, entering an atomizing nozzle through a flow guide pipe, enabling argon compressed by an air compressor to enter the atomizing nozzle, enabling the ferrotitanium liquid to meet the compressed argon in the atomizing nozzle and be atomized, enabling atomized liquid drops to fall into a water channel, solidifying into alloy powder, and drying to obtain the low-oxygen high-ferrotitanium powder. The advantages are that: the production process is simple, the grade of the product after the powder preparation is basically not lost, the product quality loss is small, the oxygen content of the gas index is low, the process is completed in one step, the production cost is low, and the method is safe, environment-friendly and efficient.
Description
Technical Field
The invention relates to a production method of low-oxygen high-titanium-iron alloy powder, in particular to a production method of low-oxygen high-titanium-iron alloy powder, which is widely applied to the industries of cored wires, welding rods, 3D printing and the like.
Background
The ferrotitanium is one of the intermediate alloys, and has the functions of improving the crystalline structure, enhancing the strength of steel, fixing interstitial elements and storing hydrogen. The ferrotitanium alloy can be divided into low ferrotitanium with the titanium content of 25-35%, medium ferrotitanium with the titanium content of 35-45% and high ferrotitanium with the titanium content of 65-75% according to the different titanium contents. The high-titanium iron has high titanium content and relatively low impurity element content, and is an important raw material for smelting high-grade titanium-containing high-quality steel.
Ferrotitanium smelting is mainly carried outThe method comprises an aluminothermic reduction method and a remelting method, wherein the aluminothermic reduction method takes aluminum particles as a reducing agent to remove TiO in rutile/ilmenite2Reducing to produce high-titanium iron. Theoretically, under high temperature conditions, aluminum can convert TiO2Reducing the titanium into metallic titanium; and in fact, TiO2The reduction process is very complicated, and part of TiO2Is reduced to metallic titanium and the other part of TiO2Is reduced to TiO and also some other oxides are formed, so that the residual amount of oxygen in the production process is too high. The remelting method uses titanium as raw material and adds iron to remelt, and is the main process for producing high-titanium iron at present.
At present, the remelting method for producing high-titanium iron to prepare alloy powder is to remelt to obtain titanium iron alloy blocks, cool and cool the titanium iron alloy blocks, crush the titanium iron alloy blocks to 0-10mm by a jaw crusher, grind the titanium iron alloy blocks by a powder making machine and screen the titanium iron alloy blocks to obtain products. The high-titanium iron has inflammability and high activity, mechanical crushing powder preparation is directly contacted with air, partial combustion is carried out under mechanical friction, more combustible dust is generated, and the titanium oxide iron is generated, so that the grade of the titanium-iron alloy powder is low, and the contents of oxygen and nitrogen are high. The grade of the 0-2mm core-spun yarn powder obtained by crushing and grinding is reduced by 0.5-1% compared with that of the ferrotitanium alloy block; the grade of 80-mesh welding rod powder obtained by crushing and grinding is reduced by 1 to 1.5 percent compared with that of ferrotitanium alloy blocks per ton; the loss of each ton of ferrotitanium alloy after grinding is between 10 and 30 kilograms.
Disclosure of Invention
The invention aims to solve the technical problem of providing a production method of low-oxygen high-titanium-iron alloy powder, which has the advantages of simple production process of the alloy powder, basically no loss of the grade of a product after powder preparation, low product quality loss, low oxygen content of a gas index, no dust and no combustion and explosion risks, one-step completion of the process, low production cost, safety, environmental protection and high efficiency.
The technical scheme of the invention is as follows:
a production method of low-oxygen high-titanium-iron alloy powder comprises the following specific steps:
(1) starting a power supply of the medium-frequency induction furnace, loading a pure iron block material, heating and smelting, adding equal-outside sponge titanium and simultaneously adding calcium oxide serving as a covering agent after pure iron is molten, adding a 75# ferrosilicon powder deoxidizer and a silicon-barium alloy serving as diluents after smelting for 30min at 1350 ℃, wherein the mass ratio of the equal-outside sponge titanium to the pure iron is 3:1, the mass ratio of the equal-outside sponge titanium to the covering agent is 5:3, continuing to smelt for 10min-25min, closing the power supply of the medium-frequency induction furnace, and skimming to obtain ferrotitanium alloy liquid;
(2) preparing high-titanium-iron alloy powder from a titanium-iron alloy liquid by adopting a titanium-iron alloy powder pulverizing device, wherein the titanium-iron alloy powder pulverizing device comprises a middle heat-insulating bag and an atomizing nozzle, the atomizing nozzle is provided with a liquid inlet and an air inlet, the bottom of the middle heat-insulating bag is provided with a flow guide port, the flow guide port is communicated with the liquid inlet of the atomizing nozzle through a flow guide pipe, the spraying direction of the atomizing nozzle is horizontally arranged, the air inlet of the atomizing nozzle is connected with an air compressor through a pipeline, the gas inlet of the air compressor is connected with an argon gas inlet pipe, a water channel is arranged below the atomizing nozzle, the bottom of the water channel is provided with a water outlet;
Injecting ferrotitanium liquid in a medium-frequency induction furnace into a heat-preservation tundish, wherein the ferrotitanium liquid flows out from a flow guide port at the bottom of the tundish, enters an atomizing nozzle through a flow guide pipe, argon compressed by an air compressor enters the atomizing nozzle, the output pressure of the air compressor is 2.12-8.7 Mpa, the output quantity of the argon is 20-50L/min, the ferrotitanium liquid meets the compressed argon in the atomizing nozzle and is atomized, atomized liquid drops fall into a water channel and are solidified into alloy powder, and the vertical distance between the liquid level of water in the water channel and the central line of the atomizing nozzle is 0.5 m; and opening a water channel water outlet, discharging water in the water channel, and drying the alloy powder to obtain the low-oxygen high-titanium-iron alloy powder.
Furthermore, the mesh number of the low-oxygen high-titanium iron alloy powder is 10-200 meshes.
Further, the air compressor output pressure is 2.12Mpa, the argon output quantity is 20.51L/min, and the high-titanium iron alloy powder for the core-spun yarn with the fineness of-10 meshes is sprayed.
Further, the air compressor output pressure is 5.45Mpa, the argon output is 35.71L/min, and the high-titanium iron alloy powder with the fineness of minus 80 meshes for welding rod powder is sprayed.
Further, the high-titanium-iron alloy powder for 3D printing with the fineness of-200 meshes is sprayed by an air compressor with the output pressure of 8.7Mpa and the argon output of 50.91L/min.
Further, the grade of the silicon-barium alloy is FeBa30Si35, and the granularity of the silicon-barium alloy is less than or equal to 10 mm.
Furthermore, the size of the outer sponge titanium block is less than or equal to 300mm, and the titanium content of the outer sponge titanium is 97%.
Further, the size of the pure iron lump material is less than or equal to 200mm, and the iron content of the pure iron is 99%.
Further, the length of the ditch is 10 meters, and the width of the ditch is 3 meters.
Furthermore, the mesh number of the filter screen is 325 meshes.
The invention has the beneficial effects that:
the alloy powder production process is simple, and the product quality is high; the ferrotitanium alloy is smelted in a non-vacuum mode, calcium oxide is added in the smelting process to prevent external titanium oxide from contacting with air to generate titanium oxide, 75# ferrotitanium and silicon-barium alloy are added to deoxidize and refine the crystal structure of ferrotitanium, the oxygen content in ferrotitanium alloy liquid is further reduced, meanwhile, the silicon-barium alloy can effectively prevent the ferrotitanium liquid from being sticky and ensure the smooth proceeding of the next atomization procedure, alloy powder in a molten state is injected into a middle heat-preservation bag to be directly atomized into powder with the granularity of 0-200 meshes, high ferrotitanium smelting liquid and powder spraying are synchronously produced, the process is completed in one step, secondary crushing is not needed, the grade of a product after powder preparation is basically not lost, the oxygen content of a gas index is low, the product quality is high, the loss is small, no dust or combustion explosion risk exists, the process is safe, environment-friendly and efficient, and the production cost is low.
Drawings
FIG. 1 is a schematic structural view of an apparatus for pulverizing a ferrotitanium alloy powder of the present invention;
in the figure: 1-middle heat preservation bag, 101-diversion port, 2-atomizing nozzle, 201-liquid inlet, 202-air inlet, 3-air compressor, 4-argon gas inlet pipe, 5-water channel, 501-water outlet and 501A-filter screen;
FIG. 2 is a particle size distribution report for the electrode grade high titanium iron powder of the present invention (corresponding to example 2);
FIG. 3 is a particle size distribution report for a 3D high titanium iron powder of the invention (corresponding to example 3);
FIG. 4 is an SEM image of a high titanium iron powder of the present invention (corresponding to example 1);
FIG. 5 is an SEM image of a high titanium iron powder of the present invention (corresponding to example 2);
FIG. 6 is an SEM image of a high titanium iron powder of the present invention (corresponding to example 3).
Detailed Description
The invention is further described with reference to specific embodiments, without limiting its scope.
In order to avoid repetition, the raw materials related to this specific embodiment are uniformly described as follows, and are not described in detail in the embodiments: a. the size of the outer-equal sponge titanium block is less than or equal to 300mm, and the titanium content of the outer-equal sponge titanium is 97%;
b. the size of the pure iron lump material is less than or equal to 200mm, and the iron content of the pure iron is 99 percent;
c. the grade of the silicon-barium alloy is FeBa30Si35, and the granularity of the silicon-barium alloy is less than or equal to 10 mm;
The No. d.75 ferrosilicon powder deoxidizer is ferrosilicon powder with the silicon content of 75 percent.
Example 1
(1) Starting a power supply by adopting a 2-ton medium-frequency induction furnace, loading a pure iron block material, heating and smelting, adding 900kg of external sponge titanium after 300kg of pure iron is melted, simultaneously adding 10kg of calcium oxide as a covering agent, smelting for 30min at 1350 ℃, adding 5kg of 75# ferrosilicon powder deoxidizer and 3kg of silicon-barium alloy as diluents, continuing smelting for 10min, closing the power supply of the medium-frequency induction furnace, and slagging off to obtain ferrotitanium alloy liquid;
(2) adopting a ferrotitanium powder pulverizing device to prepare ferrotitanium liquid into high ferrotitanium powder, wherein as shown in fig. 1, the ferrotitanium powder pulverizing device comprises a middle heat-insulating bag 1 and an atomizing nozzle 2, the atomizing nozzle 2 is provided with a liquid inlet 201 and an air inlet 202, the bottom of the middle heat-insulating bag 1 is provided with a flow guide port 101, the flow guide port 101 is communicated with the liquid inlet 201 of the atomizing nozzle 2 through a flow guide pipe, the spraying direction of the atomizing nozzle 2 is horizontally arranged, the air inlet 202 of the atomizing nozzle 2 is connected with an air compressor 3 through a pipeline, the gas inlet of the air compressor is connected with an argon gas inlet pipe 4, a water channel 5 is arranged below the atomizing nozzle 2, the embodiment takes the length of the water channel 5 as 10 meters, and the width of the water channel 5 as 3 meters as an example; a water outlet 501 is arranged at the bottom of the ditch 5, and a 325-mesh filter screen 501A is arranged on the water outlet 501;
Injecting ferrotitanium liquid in the medium-frequency induction furnace into a heat-preservation tundish, wherein the ferrotitanium liquid flows out from a diversion port 101 at the bottom of the tundish, enters an atomizing nozzle 2 through a diversion pipe, and enters the atomizing nozzle 2 through argon compressed by an air compressor 3, the output pressure of the air compressor 3 is 2.12Mpa, the output quantity of the argon is 20.51L/min, and the ferrotitanium liquid is sprayed into high ferrotitanium powder for a cored wire with the fineness of-10 meshes; the ferrotitanium hydraulic pressure meets compressed argon gas in the atomizing nozzle 2 to be atomized, atomized liquid drops fall into the water channel 5 to be solidified into alloy powder, and the vertical distance between the liquid level of water in the water channel 5 and the central line of the atomizing nozzle 2 is 0.5 m; opening a water outlet 501 of the water channel 5, discharging water in the water channel 5, drying the alloy powder, and sieving the dried alloy powder with a 10-mesh sieve to obtain the low-oxygen high-titanium-iron alloy powder, wherein the low-oxygen high-titanium-iron alloy powder can be used as the high-titanium-iron alloy powder for the cored wire, the yield of the product at one time is 98%, and the loss of 2.1 kg of the high-titanium-iron alloy per ton is reduced.
Example 2
(1) Starting a power supply by adopting a 2-ton medium-frequency induction furnace, loading a pure iron block material, heating and smelting, adding 900kg of external sponge titanium after 300kg of pure iron is melted, simultaneously adding 10kg of calcium oxide as a covering agent, smelting for 30min at 1350 ℃, adding 5kg of 75# ferrosilicon powder deoxidizer and 3kg of silicon-barium alloy as diluents, continuously smelting for 15min, closing the power supply of the medium-frequency induction furnace, and slagging off to obtain ferrotitanium alloy liquid;
(2) Adopting a ferrotitanium powder pulverizing device to prepare ferrotitanium liquid into high ferrotitanium powder, wherein as shown in fig. 1, the ferrotitanium powder pulverizing device comprises a middle heat-insulating bag 1 and an atomizing nozzle 2, the atomizing nozzle 2 is provided with a liquid inlet 201 and an air inlet 202, the bottom of the middle heat-insulating bag 1 is provided with a flow guide port 101, the flow guide port 101 is communicated with the liquid inlet 201 of the atomizing nozzle 2 through a flow guide pipe, the spraying direction of the atomizing nozzle 2 is horizontally arranged, the air inlet 202 of the atomizing nozzle 2 is connected with an air compressor 3 through a pipeline, the gas inlet of the air compressor is connected with an argon gas inlet pipe 4, a water channel 5 is arranged below the atomizing nozzle 2, the embodiment takes the length of the water channel 5 as 10 meters, and the width of the water channel 5 as 3 meters as an example; a water outlet 501 is arranged at the bottom of the ditch 5, and a 325-mesh filter screen 501A is arranged on the water outlet 501;
injecting ferrotitanium liquid in the medium-frequency induction furnace into a heat-preservation tundish, wherein the ferrotitanium liquid flows out from a diversion port 101 at the bottom of the tundish, enters an atomizing nozzle 2 through a diversion pipe, and enters the atomizing nozzle 2 through argon compressed by an air compressor 3, the output pressure of the air compressor 3 is 5.45Mpa, the output quantity of the argon is 35.71L/min, and the ferrotitanium liquid is sprayed into high ferrotitanium powder for welding rod powder with the fineness of-80 meshes; the ferrotitanium hydraulic pressure meets compressed argon gas in the atomizing nozzle 2 to be atomized, atomized liquid drops fall into the water channel 5 to be solidified into alloy powder, and the vertical distance between the liquid level of water in the water channel 5 and the central line of the atomizing nozzle 2 is 0.5 m; and opening a water outlet 501 of the water channel 5, discharging water in the water channel 5, and drying the alloy powder to obtain the low-oxygen high-titanium iron alloy powder. The low-oxygen high-titanium-iron alloy powder can be used as high-titanium-iron alloy powder for welding rod powder.
Example 3
(1) Starting a power supply by adopting a 2-ton medium-frequency induction furnace, loading a pure iron block material, heating and smelting, adding 900kg of external sponge titanium after 300kg of pure iron is melted, simultaneously adding 10kg of calcium oxide as a covering agent, smelting for 30min at 1350 ℃, adding 5kg of 75# ferrosilicon powder deoxidizer and 3kg of silicon-barium alloy as diluents, continuously smelting for 25min, closing the power supply of the medium-frequency induction furnace, and slagging off to obtain ferrotitanium alloy liquid;
(2) adopting a ferrotitanium powder pulverizing device to prepare ferrotitanium liquid into high ferrotitanium powder, wherein as shown in fig. 1, the ferrotitanium powder pulverizing device comprises a middle heat-insulating bag 1 and an atomizing nozzle 2, the atomizing nozzle 2 is provided with a liquid inlet 201 and an air inlet 202, the bottom of the middle heat-insulating bag 1 is provided with a flow guide port 101, the flow guide port 101 is communicated with the liquid inlet 201 of the atomizing nozzle 2 through a flow guide pipe, the spraying direction of the atomizing nozzle 2 is horizontally arranged, the air inlet 202 of the atomizing nozzle 2 is connected with an air compressor 3 through a pipeline, the gas inlet of the air compressor is connected with an argon gas inlet pipe 4, a water channel 5 is arranged below the atomizing nozzle 2, the embodiment takes the length of the water channel 5 as 10 meters, and the width of the water channel 5 as 3 meters as an example; a water outlet 501 is arranged at the bottom of the ditch 5, and a 325-mesh filter screen 501A is arranged on the water outlet 501;
Injecting ferrotitanium liquid in the medium-frequency induction furnace into a heat-preservation tundish, wherein the ferrotitanium liquid flows out from a diversion port 101 at the bottom of the tundish, enters an atomizing nozzle 2 through a diversion pipe, and enters the atomizing nozzle 2 through argon compressed by an air compressor 3, the output pressure of the air compressor 3 is 8.7MPa, the output quantity of the argon is 50.91L/min, and the ferrotitanium liquid is sprayed into high-ferrotitanium powder for 3D printing with the fineness of-200 meshes; the ferrotitanium hydraulic pressure meets compressed argon gas in the atomizing nozzle 2 to be atomized, atomized liquid drops fall into the water channel 5 to be solidified into alloy powder, and the vertical distance between the liquid level of water in the water channel 5 and the central line of the atomizing nozzle 2 is 0.5 m; and opening a water outlet 501 of the water channel 5, discharging water in the water channel 5, and drying the alloy powder to obtain the low-oxygen high-titanium iron alloy powder. As can be seen from FIG. 3, the low-oxygen high-titanium-iron alloy powder D50 is 27.138 μm, as can be seen from FIG. 6, the morphology of the low-oxygen high-titanium-iron alloy powder is spherical, and the low-oxygen high-titanium-iron alloy powder is suitable for being used as high-titanium-iron alloy powder for 3D printing.
Comparative example 1
(1) Starting a power supply by adopting a 2-ton medium-frequency induction furnace, loading a pure iron block material, heating and smelting, adding 900kg of external sponge titanium after 300kg of pure iron is melted, simultaneously adding 10kg of calcium oxide as a covering agent, smelting for 30min at 1350 ℃, adding 5kg of 75# ferrosilicon powder deoxidizer and 3kg of silicon-barium alloy as diluents, continuing smelting for 10min, closing the power supply of the medium-frequency induction furnace, and slagging off to obtain ferrotitanium alloy liquid;
(2) Crushing the core-spun yarn to be less than or equal to 10mm by using a jaw crusher, grinding the core-spun yarn to be less than or equal to 2mm by using a powder making machine, and screening to obtain the high-titanium-iron alloy powder for the core-spun yarn. After grinding, the loss of each ton of high-titanium iron alloy is 20.5 kg.
TABLE 1 product indices of inventive examples 1-3 and comparative example 1
The above description is only exemplary of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A production method of low-oxygen high-titanium-iron alloy powder is characterized by comprising the following steps:
the method comprises the following specific steps:
(1) starting a power supply of the medium-frequency induction furnace, loading pure iron blocks, heating and smelting, adding extra-sponge titanium and covering agent calcium oxide after pure iron is molten, adding 75# ferrosilicon powder deoxidizer and silicon-barium alloy as diluents after smelting for 30min at 1350 ℃, continuing to smelt for 10min-25min, closing the power supply of the medium-frequency induction furnace, and skimming to obtain ferrotitanium alloy liquid, wherein the mass ratio of the extra-sponge titanium to the pure iron is 3:1, and the mass ratio of the extra-sponge titanium to the covering agent is 30: 1;
(2) Preparing high-titanium-iron alloy powder from a titanium-iron alloy liquid by adopting a titanium-iron alloy powder pulverizing device, wherein the titanium-iron alloy powder pulverizing device comprises a middle heat-insulating bag and an atomizing nozzle, the atomizing nozzle is provided with a liquid inlet and an air inlet, the bottom of the middle heat-insulating bag is provided with a flow guide port, the flow guide port is communicated with the liquid inlet of the atomizing nozzle through a flow guide pipe, the spraying direction of the atomizing nozzle is horizontally arranged, the air inlet of the atomizing nozzle is connected with an air compressor through a pipeline, the gas inlet of the air compressor is connected with an argon gas inlet pipe, a water channel is arranged below the atomizing nozzle, the bottom of the water channel is provided with a water outlet;
injecting ferrotitanium liquid in a medium-frequency induction furnace into a heat-preservation tundish, wherein the ferrotitanium liquid flows out from a flow guide port at the bottom of the tundish, enters an atomizing nozzle through a flow guide pipe, argon compressed by an air compressor enters the atomizing nozzle, the output pressure of the air compressor is 2.12-8.7 Mpa, the output quantity of the argon is 20-50L/min, the ferrotitanium liquid meets the argon in the atomizing nozzle under the pressure of the ferrotitanium liquid and is atomized, atomized liquid drops fall into a water channel and are solidified into alloy powder, and the vertical distance between the liquid level of water in the water channel and the central line of the nozzle is 0.5 m; and opening a water channel water outlet, discharging water in the water channel, and drying the alloy powder to obtain the low-oxygen high-titanium-iron alloy powder.
2. The method for producing a low-oxygen high-titanium-iron alloy powder according to claim 1, wherein: the mesh number of the low-oxygen high-titanium-iron alloy powder is 10-200 meshes.
3. The method for producing a low-oxygen high-titanium-iron alloy powder according to claim 1, wherein: the output pressure of an air compressor is 2.12Mpa, the output quantity of argon is 20.51L/min, and the high-titanium-iron alloy powder with the fineness of minus 10 meshes for the cored wire is sprayed.
4. The method for producing a low-oxygen high-titanium-iron alloy powder according to claim 1, wherein: the output pressure of an air compressor is 5.45Mpa, the output quantity of argon gas is 35.71L/min, and the high-titanium iron alloy powder with the fineness of minus 80 meshes is sprayed.
5. The method for producing a low-oxygen high-titanium-iron alloy powder according to claim 1, wherein: the air compressor output pressure is 8.7Mpa, the argon output quantity is 50.91L/min, and the high-titanium-iron alloy powder with the fineness of-200 meshes for 3D printing is sprayed.
6. The method for producing a low-oxygen high-titanium-iron alloy powder according to claim 1, wherein: the grade of the silicon-barium alloy is FeBa30Si35, and the granularity of the silicon-barium alloy is less than or equal to 10 mm.
7. The method for producing a low-oxygen high-titanium-iron alloy powder according to claim 1, wherein: the size of the outer sponge titanium block is less than or equal to 300mm, and the titanium content of the outer sponge titanium is 97%.
8. The method for producing a low-oxygen high-titanium-iron alloy powder according to claim 1, wherein: the size of the pure iron lump material is less than or equal to 200mm, and the iron content of the pure iron is 99%.
9. The method for producing a low-oxygen high-titanium-iron alloy powder according to claim 1, wherein: the length of the ditch is 10 meters, and the width of the ditch is 3 meters.
10. The method for producing a low-oxygen high-titanium-iron alloy powder according to claim 1, wherein: the mesh number of the filter screen is 325 meshes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010577255.XA CN111842912B (en) | 2020-06-23 | 2020-06-23 | Production method of low-oxygen high-titanium-iron alloy powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010577255.XA CN111842912B (en) | 2020-06-23 | 2020-06-23 | Production method of low-oxygen high-titanium-iron alloy powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111842912A true CN111842912A (en) | 2020-10-30 |
| CN111842912B CN111842912B (en) | 2023-01-13 |
Family
ID=72988045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010577255.XA Active CN111842912B (en) | 2020-06-23 | 2020-06-23 | Production method of low-oxygen high-titanium-iron alloy powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111842912B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1126766A (en) * | 1995-08-23 | 1996-07-17 | 宝鸡特殊钢厂 | Production process of ferro-titanium alloy |
| JP2005226114A (en) * | 2004-02-12 | 2005-08-25 | Nasu Denki Tekko Co Ltd | Method of producing hydrogen storage alloy powder, and hydrogen storage alloy powder obtained by the production method |
| CN1831164A (en) * | 2006-04-11 | 2006-09-13 | 李春德 | Method for producing high titanium iron contg. low oxygen and low nitrogen |
| CN102319902A (en) * | 2011-09-26 | 2012-01-18 | 常州市茂盛特合金制品厂 | Ferroalloy water-quenching granulation device and process thereof |
| CN103846447A (en) * | 2012-12-06 | 2014-06-11 | 北京有色金属研究总院 | Gas atomization preparation method of fine spherical titanium or titanium alloy powder |
| CN110842210A (en) * | 2019-11-21 | 2020-02-28 | 安徽省春谷3D打印智能装备产业技术研究院有限公司 | Plasma arc spheroidizing device and method for iron-based master alloy powder |
-
2020
- 2020-06-23 CN CN202010577255.XA patent/CN111842912B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1126766A (en) * | 1995-08-23 | 1996-07-17 | 宝鸡特殊钢厂 | Production process of ferro-titanium alloy |
| JP2005226114A (en) * | 2004-02-12 | 2005-08-25 | Nasu Denki Tekko Co Ltd | Method of producing hydrogen storage alloy powder, and hydrogen storage alloy powder obtained by the production method |
| CN1831164A (en) * | 2006-04-11 | 2006-09-13 | 李春德 | Method for producing high titanium iron contg. low oxygen and low nitrogen |
| CN102319902A (en) * | 2011-09-26 | 2012-01-18 | 常州市茂盛特合金制品厂 | Ferroalloy water-quenching granulation device and process thereof |
| CN103846447A (en) * | 2012-12-06 | 2014-06-11 | 北京有色金属研究总院 | Gas atomization preparation method of fine spherical titanium or titanium alloy powder |
| CN110842210A (en) * | 2019-11-21 | 2020-02-28 | 安徽省春谷3D打印智能装备产业技术研究院有限公司 | Plasma arc spheroidizing device and method for iron-based master alloy powder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111842912B (en) | 2023-01-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111549224B (en) | Method for improving quality of AlV55 alloy finished product | |
| CN112893852A (en) | Preparation method of refractory high-entropy alloy powder | |
| CN101457270B (en) | Method and device for preparing high quality high ferrotitanium alloy based on aluminothermy reduction | |
| CN101967572B (en) | Method for preparing aluminum and titanium master alloy from titanium chips and aluminum at low temperature | |
| CN102888492B (en) | Si-Ca-Al-Mg-RE (rare earth) composite deoxidizer and preparation method thereof | |
| CN109434117A (en) | A kind of preparation method of the spherical zirconium-niobium alloy powder of 3D printing | |
| CN102528016A (en) | Powdered alloy steel for metal injection molding and preparation method thereof | |
| CN101967573B (en) | Method for manufacturing aluminum zirconium intermediate alloy by alloying zirconium crumbs and aluminum at low temperature | |
| CN110014158A (en) | A kind of method that aerosolization prepares spherical chromium powder | |
| CN113817935A (en) | High-purity nickel-based high-temperature alloy and preparation method of spherical powder thereof | |
| WO2018228140A1 (en) | Method for preparing ferrotitanium alloy based on aluminothermic self-propagating gradient reduction and slagging refining | |
| CN107675074A (en) | A kind of soft magnetic metal sendust powder and preparation method thereof | |
| CN111647765A (en) | Method for improving apparent mass of AlV55 alloy | |
| CN111842912B (en) | Production method of low-oxygen high-titanium-iron alloy powder | |
| CN102982956A (en) | High magnetic permeability and low loss metal soft magnetic material powder and preparation method thereof | |
| CN111014651A (en) | Short fiber reinforced high-temperature titanium alloy powder for 700-750 ℃ and preparation thereof | |
| CN102146545A (en) | Method and composition for producing high-purity silicon iron | |
| CN106493374B (en) | A kind of preparation method of iron silicon magnetically soft alloy powder | |
| CN101225482A (en) | Ferrotitanium alloy electric induction furnace smelting method | |
| CN107365918A (en) | A kind of casting technique of aluminium alloy ingots | |
| CN107012294A (en) | A kind of HIGH-PURITY SILICON iron powder and preparation method thereof | |
| CN104726738A (en) | Crystalline silicon waste treatment method | |
| CN110616340B (en) | Method for preparing titanium ingot by hydrogenation and dehydrogenation of high-oxygen titanium reclaimed material | |
| CN107354486A (en) | A kind of preparation method of high ferrotitanium alloy | |
| CN111621617A (en) | Titanium iron nitride, manufacturing method thereof and cored wire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |