SU377208A1 - METHOD OF OBTAINING METALLIC POWDERS HARDENED BY OXIDES - Google Patents
METHOD OF OBTAINING METALLIC POWDERS HARDENED BY OXIDESInfo
- Publication number
- SU377208A1 SU377208A1 SU1649439A SU1649439A SU377208A1 SU 377208 A1 SU377208 A1 SU 377208A1 SU 1649439 A SU1649439 A SU 1649439A SU 1649439 A SU1649439 A SU 1649439A SU 377208 A1 SU377208 A1 SU 377208A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- oxides
- hardened
- melt
- metallic powders
- obtaining metallic
- Prior art date
Links
- 239000000843 powder Substances 0.000 title description 9
- 238000000034 method Methods 0.000 title description 4
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 238000005507 spraying Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Powder Metallurgy (AREA)
Description
1one
Предложение относитс к области получени металлических порошков с окисными включени ми дл изготовлени дисперсноупрочненных жаропрочных материалов.The proposal relates to the field of production of metal powders with oxide inclusions for the manufacture of dispersion-strengthened heat-resistant materials.
Известен способ получени металлических порошков, частицы которых упрочнены окислами , путем окислени с поверхности образующихс при распылении капель расплава в среде газового пламени.A known method for producing metal powders, the particles of which are hardened by oxides, by oxidation from the surface of melt droplets formed in the gas flame environment during spraying.
Предложенный способ отличаетс от известного тем, что окисные включени формируют во внутреннем объеме капель, образующихс при газовом диспергировании струи расплава, содержащего легирующие элементы , окислы которых необходимо получить в матрице частицы порошка; окисление этих элементов осуществл ют путем насыщени расплава перед распылением кислородом выще равновесной концентрации продувкой его газообразным кислородом в плавильном устройстве.The proposed method differs from the well-known fact that oxide inclusions form in the internal volume of droplets formed during gas dispersion of a jet of melt containing alloying elements, the oxides of which must be obtained in the matrix of a powder particle; The oxidation of these elements is carried out by saturating the melt before spraying with oxygen above the equilibrium concentration by blowing it with gaseous oxygen in the melting device.
Предложенный способ осуществл ют следующим образом. Металлический расплав, например сплав никел с 1,5% алюмини или сталь Х13М2Ю2, наход щийс в металлеприемнике при 1610 1665°С, продувают газообразным кислородом, удельный расход которого составл ет 0.1 жз на 1 кг расплава. ИзThe proposed method is carried out as follows. A metal melt, such as an alloy of nickel with 1.5% aluminum or steel X13M2U2, located in a metal receiver at 1610 1665 ° C, is flushed with gaseous oxygen, the specific consumption of which is 0.1 kg per 1 kg of melt. Of
металлоприемника расплав, насыщенный кислородом , по металлопроводу поступает на распыление сжатым газом. В объеме образующихс при распылении частиц порощка формируютс окисные включени , представл ющие собой окись алюмини в количестве 2-5 об. %. Размер окисных частиц 0,1 - 0,5 мк.the metal reservoir melt, saturated with oxygen, through the metal pipe enters the spraying of compressed gas. In the volume of the powder particles formed during the spraying of the powder, oxide inclusions are formed, which are alumina in the amount of 2–5 vol. % The size of oxide particles is 0.1 - 0.5 microns.
Игольчата форма окислов в частицах порошка из никель-алюмипиеного сплава свидетельствует о том, что они выделились в твердом металле за счет снижени растворимости кислорода в капл х расплава при их кристаллизации .The needle shape of the oxides in the powder particles from a nickel-alumina alloy indicates that they precipitated in the solid metal by reducing the solubility of oxygen in the melt drops during their crystallization.
Исследовани ми было доказано, что окисные включени равномерно расположены в объеме частиц полученных порошков.Studies have shown that oxide inclusions are evenly distributed in the bulk of the particles of the obtained powders.
Предмет изобретени Subject invention
2020
Способ получени металлических порошков, упрочненных окислами, распылением расплава газом, отличающийс тем, что, с целью получени частиц с равномерно распределенными в их объемах окисными включени ми, расплар перед распылением насыщают кислородом выше равновесной концентрации продувкой его газообразным кислородом.The method of obtaining metal powders, hardened by oxides, by spraying the melt with gas, characterized in that, in order to obtain particles with oxide inclusions evenly distributed in their volumes, the melt is saturated with oxygen before equilibrium before spraying with an oxygen gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1649439A SU377208A1 (en) | 1971-04-17 | 1971-04-17 | METHOD OF OBTAINING METALLIC POWDERS HARDENED BY OXIDES |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1649439A SU377208A1 (en) | 1971-04-17 | 1971-04-17 | METHOD OF OBTAINING METALLIC POWDERS HARDENED BY OXIDES |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU377208A1 true SU377208A1 (en) | 1973-04-17 |
Family
ID=20473183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1649439A SU377208A1 (en) | 1971-04-17 | 1971-04-17 | METHOD OF OBTAINING METALLIC POWDERS HARDENED BY OXIDES |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU377208A1 (en) |
-
1971
- 1971-04-17 SU SU1649439A patent/SU377208A1/en active
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