BE366227A - - Google Patents
Info
- Publication number
- BE366227A BE366227A BE366227DA BE366227A BE 366227 A BE366227 A BE 366227A BE 366227D A BE366227D A BE 366227DA BE 366227 A BE366227 A BE 366227A
- Authority
- BE
- Belgium
- Prior art keywords
- steel alloys
- steel
- articles
- alloys
- chromium
- Prior art date
Links
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 11
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 229910052804 chromium Inorganic materials 0.000 claims description 5
- 239000011651 chromium Substances 0.000 claims description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 239000011733 molybdenum Substances 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 230000005923 long-lasting effect Effects 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 239000010936 titanium Substances 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 229910052720 vanadium Inorganic materials 0.000 claims 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims 1
- 239000011701 zinc Substances 0.000 claims 1
- 229910052725 zinc Inorganic materials 0.000 claims 1
- 230000007774 longterm Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229920000914 Metallic fiber Polymers 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Description
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Objets en alltages d'acter,, tels que réservoirs, tuyaux,
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parties de ohaudières et analogues, exigeant une grande résistanoe tnoartable.
La présente invention concerne des objets en alliages
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d'acier; tels que réserotrs tuyaux; partles de chaudières et analogues; extgeant une grande résistance Invarlable, Par réststance Invarlable, il faut entendre la résistance à des efforts mécaniques re1at1Jement élevés se produisant en particulter à de hautes températures (par exemple 250-600oC)Q L'tnventlon consiste en ce que les objets sont fabrtqués en des alliages d'acier qui résistent à un essai sous des
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efforts de longue durée en particulier a des températures élevéeso Comme tels alliages entrent en ligne de compte par ;
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exemple, des alliages d'acterp qui renferment du aolybdàne -i ou du vanadtum ou du tungstène ou de 22MtuN ou du 1
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silicium ou du titane ou du zirconium, séparément ou en mélange, et dont les propriétés sont, dans certains cas, améliorées par l'addition de chrome, manganèse, nickel, cobalt ou cuivre, séparément ou en mélange.
On trouve des alliages d'acier appropriés au but men- tionné, en soumettant par exemple des fils métalliques à un effort de flexion relativement élevé, de longue durée, à des températures élevées (par exemple jusqu'à 6000 C) et en déterminant quels sont les fils métalliques qui ne se sont pas notablement pliés dans cet essai.
Comme exemples d'alliages d'acier, qui conviennent tout particulièrement pour la fabrication des objets mentionnés, il y a lieu de citer des alliages qui, pour une teneur en carbone d'en viron 0.15 %, renferment environ 1-2.5% de tungstène, 0.5-2% de chrome et 0.4 % de molybdène, ou en- viron 0.8 % de molybdène et 1% de chrome.
Si l'on améliore par un traitement thermique les al- liages d'acier employés pour la fabriction des objets mentionnés, la résistance à chaud des objets augmente à un degré appréciable,
Au lieu de l'essai sous un effort de flexion de longue durée, qui est particulièrement simple, fournit des ré- sultats clairs et permet cessai simultané de beaucoup de genres d'acier dans des conditions complètement iden- tiques, on peut également avoir recours à d'autres genres dressais, par exemple à des essais de traction de longue durée., lorsqu'on veille à ce que 1'essai fasse ressortir la manière dont se comporte l'alliage d'acier sous un effort de longue durée.
R e v e n d i c a t i o n s.
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Objects in alltages of act, such as tanks, pipes,
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parts of boilers and the like, requiring a high degree of resistance.
The present invention relates to objects made of alloys
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of steel; such as hoses reservoirs; parts of boilers and the like; Extgeant a great Invarlable resistance, By Invarlable resistance is meant the resistance to very high mechanical stresses occurring in particular at high temperatures (for example 250-600oC) Q The invention consists in that the objects are manufactured in steel alloys that withstand testing under
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long-lasting stresses, in particular at elevated temperatures. As such alloys are taken into account by;
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example, alloys of acterp which contain aolybdenum -i or vanadtum or tungsten or 22MtuN or 1
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silicon or titanium or zirconium, separately or as a mixture, and the properties of which are, in certain cases, improved by the addition of chromium, manganese, nickel, cobalt or copper, separately or as a mixture.
Steel alloys suitable for the above purpose are found, for example by subjecting metal wires to a relatively high, long-lasting bending force at high temperatures (for example up to 6000 C) and determining which are the metallic threads which did not noticeably bend in this test.
As examples of steel alloys which are particularly suitable for the manufacture of the objects mentioned, there should be mentioned alloys which, for a carbon content of about 0.15%, contain about 1-2.5% of tungsten. , 0.5-2% chromium and 0.4% molybdenum, or about 0.8% molybdenum and 1% chromium.
If the steel alloys used for the manufacture of the mentioned articles are improved by heat treatment, the hot strength of the articles increases to an appreciable degree,
Instead of the test under long-term bending stress, which is particularly simple, gives clear results and allows simultaneous cessation of many kinds of steel under completely identical conditions, it is also possible to have recourse to to other kinds, such as long-term tensile tests, where care is taken that the test shows how the steel alloy behaves under long-term stress.
R e v e n d i c a t i o n s.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE366227A true BE366227A (en) |
Family
ID=38394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE366227D BE366227A (en) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE366227A (en) |
-
0
- BE BE366227D patent/BE366227A/fr unknown
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