SU97178A1 - Nitriding method of structural alloyed steels - Google Patents
Nitriding method of structural alloyed steelsInfo
- Publication number
- SU97178A1 SU97178A1 SU446858A SU446858A SU97178A1 SU 97178 A1 SU97178 A1 SU 97178A1 SU 446858 A SU446858 A SU 446858A SU 446858 A SU446858 A SU 446858A SU 97178 A1 SU97178 A1 SU 97178A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- alloyed steels
- nitriding method
- structural
- structural alloyed
- temperature
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title description 4
- 239000010959 steel Substances 0.000 title description 4
- 238000000034 method Methods 0.000 title description 3
- 238000005121 nitriding Methods 0.000 title description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- OGSYQYXYGXIQFH-UHFFFAOYSA-N chromium molybdenum nickel Chemical compound [Cr].[Ni].[Mo] OGSYQYXYGXIQFH-UHFFFAOYSA-N 0.000 description 1
- QFSKIUZTIHBWFR-UHFFFAOYSA-N chromium;hydrate Chemical compound O.[Cr] QFSKIUZTIHBWFR-UHFFFAOYSA-N 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Description
Предметом изобретени вл етс сиоооб азоБ розани конструкционных легированных сталей при температуре 370-380.The subject of the invention is sio-ozo-b rozane structural alloyed steels at a temperature of 370-380.
Об1цеиз.вестны способы азотировани конструкционных легированных сталей, выполн емые при температуре не ниже 450° чаще нри .Observation. Known methods of nitriding structural alloyed steels, carried out at a temperature not lower than 450 ° more often.
Описываемый способ отл:ичаетс от известных тем. что требуемые глубИНа и -пвердость азот ро занного слхт достигаютс при бо.аее низкой температуре в 370-380°. При таком теп::03ом режиме в констрз.кщлонпых лелироваНных, например, хромо-никель-молибденовых стал х, не по вл етс отпускной хрупкости, в то врем как азотирование при температуре вып:-с 500° з}1ачител1 но спИЖаст их в ЗКость.The described method exc: reads from known topics. that the required depth and -hardness of nitrogen borne sinter is achieved at a very low temperature of 370-380 °. With such a warmth :: 03th mode, in the design of highly selective, for example, chromium-nickel-molybdenum steels, there is no release of brittleness, while nitriding at a discharge temperature: -C 500 ° C} ZKost.
Подвергаема азотированию деталь , предварительно обмазываетс насьицен;ньи1 водным раствором xpoMOiBoro а;нгидрида, способствуюП1 ,его образаван1ию тонкого поверх}ю:тного сло высокой твердости, затем номеплаетс в муфель вблизи от пороигкообразного ферросилици , обеспечивающего более раннююThe part to be nitrided is pre-coated with nacycene; nyi1 water solution xpoMOiBoro and nhydride, which contributes to P1, its formation on the thinnest top: high hardness layer, then melts into a muffle near the pigment-like ferrosilicon, providing an earlier
диссоциацию с-гммиака в nj)eae.:iax 18-32%.dissociation of s-gmmaia in nj) eae.:iax 18-32%.
В муфеле деталь нагреваетс в слабой струе при температуре 370-380. Продолж тапьность выдержки определ етс заданной твердостью поверхности азот:ируемой детали. Однозременно применен}1е ферроаилици и хромового ггтгидри.да, выполн ющих в слабой струе ам миака роль катал:изатора, обеспечивает твердость азотироаа Hoii поверхности 45-50/(. прп глупи} с сло 0,2 мм.In the muffle, the part is heated in a weak stream at a temperature of 370-380. Exposure duration is determined by the specified nitrogen surface hardness of the part being worked. Simultaneously,} 1e ferroilicon and chromium hydroxyhydride, which play the role of a catalyst: an insulator in a weak ammonia jet, provides a hardness of 45-50 / (Nippi) from a 0.2 mm layer.
11 р е д м е т II 3 о б р е т е и н 11 remedi II 3 obrete n i
Сг:о:.аб азоти рованй конструкционных лепирОВйННых сталей, отлич а ю HJ. н ii с тем, что деталь пе1 )ед азотированием обмазываетс насьицен1 ым водным раствором хромового ангидрида, после чего помещаетс в муфель вблизи по )1ощкообразного ферросилици , где нагреваетс в слабой струе аммиака при температурах в интервале 370-380 и выдержках, олредел еNSbix твердостью пове ххности азоCr: o: ab nitrogen structural steel, different from HJ. n ii, so that the pe1) u unit is nitrided and coated with a nasicenous aqueous solution of chromic anhydride, after which it is placed in a muffle close to the crushed ferrosilicon, where it is heated in a weak stream of ammonia at temperatures in the range of 370-380 and shutter speeds hhnost azo
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU446858A SU97178A1 (en) | 1951-05-26 | 1951-05-26 | Nitriding method of structural alloyed steels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU446858A SU97178A1 (en) | 1951-05-26 | 1951-05-26 | Nitriding method of structural alloyed steels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU97178A1 true SU97178A1 (en) | 1953-11-30 |
Family
ID=48371843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU446858A SU97178A1 (en) | 1951-05-26 | 1951-05-26 | Nitriding method of structural alloyed steels |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU97178A1 (en) |
-
1951
- 1951-05-26 SU SU446858A patent/SU97178A1/en active
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