US3890105A - Metallic sintering powder or alloy - Google Patents
Metallic sintering powder or alloy Download PDFInfo
- Publication number
- US3890105A US3890105A US353454A US35345473A US3890105A US 3890105 A US3890105 A US 3890105A US 353454 A US353454 A US 353454A US 35345473 A US35345473 A US 35345473A US 3890105 A US3890105 A US 3890105A
- Authority
- US
- United States
- Prior art keywords
- carbides
- percent
- composition
- weight
- steel alloy
- 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.)
- Expired - Lifetime
Links
- 239000000843 powder Substances 0.000 title claims abstract description 43
- 239000000956 alloy Substances 0.000 title claims abstract description 29
- 229910045601 alloy Inorganic materials 0.000 title abstract description 25
- 238000005245 sintering Methods 0.000 title abstract description 13
- 150000001247 metal acetylides Chemical class 0.000 claims abstract description 92
- 239000000203 mixture Substances 0.000 claims abstract description 83
- 229910000851 Alloy steel Inorganic materials 0.000 claims abstract description 54
- 238000005275 alloying Methods 0.000 claims abstract description 18
- 229910052751 metal Inorganic materials 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 14
- 239000011651 chromium Substances 0.000 claims description 37
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 33
- 229910052799 carbon Inorganic materials 0.000 claims description 33
- 229910052804 chromium Inorganic materials 0.000 claims description 28
- 239000000654 additive Substances 0.000 claims description 25
- 230000000996 additive effect Effects 0.000 claims description 24
- 239000011572 manganese Substances 0.000 claims description 24
- 229910052748 manganese Inorganic materials 0.000 claims description 21
- -1 CHROMIUM CARBIDES Chemical class 0.000 claims description 19
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 13
- 230000002950 deficient Effects 0.000 claims description 12
- 239000010955 niobium Substances 0.000 claims description 12
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 11
- 239000010936 titanium Substances 0.000 claims description 10
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 7
- 229910052750 molybdenum Inorganic materials 0.000 claims description 7
- 239000011733 molybdenum Substances 0.000 claims description 7
- 229910052720 vanadium Inorganic materials 0.000 claims description 7
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 5
- 229910052796 boron Inorganic materials 0.000 claims description 5
- 239000010941 cobalt Substances 0.000 claims description 5
- 229910017052 cobalt Inorganic materials 0.000 claims description 5
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 5
- 229910001021 Ferroalloy Inorganic materials 0.000 claims description 4
- 229910052735 hafnium Inorganic materials 0.000 claims description 4
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 4
- 229910052758 niobium Inorganic materials 0.000 claims description 4
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 4
- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 claims description 4
- 229910052715 tantalum Inorganic materials 0.000 claims description 4
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 238000000280 densification Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 15
- 239000010959 steel Substances 0.000 description 15
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 8
- 235000021355 Stearic acid Nutrition 0.000 description 5
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 5
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- 239000008117 stearic acid Substances 0.000 description 5
- XCNJCXWPYFLAGR-UHFFFAOYSA-N chromium manganese Chemical compound [Cr].[Mn].[Mn].[Mn] XCNJCXWPYFLAGR-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000007792 addition Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 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 2
- 238000010310 metallurgical process Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 229910000997 High-speed steel Inorganic materials 0.000 description 1
- 229910000914 Mn alloy Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 241001417490 Sillaginidae Species 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 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
- 238000005255 carburizing Methods 0.000 description 1
- UFGZSIPAQKLCGR-UHFFFAOYSA-N chromium carbide Chemical compound [Cr]#C[Cr]C#[Cr] UFGZSIPAQKLCGR-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000009770 conventional sintering Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 239000006023 eutectic alloy Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 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
- 238000005272 metallurgy Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910003470 tongbaite Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
- C22C33/0292—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with more than 5% preformed carbides, nitrides or borides
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
- C22C33/0285—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with Cr, Co, or Ni having a minimum content higher than 5%
Definitions
- Metallic sintered alloys are prepared from a composition of metal powder and the alloying components and/or from an alloying powder and admixtures of carbides such as chromium-carbides by pressure and sintering. If desired, a following cold or warm working step may be used to improve the densification.
- the starting powder composition contains 05-50 percent by weight of carbides consisting completely or substantially of complex chromiumcarbides and/or complex manganesecarbides and/or mixed carbides compose these elements.
- This invention relates to metallic sintering alloys, especially sintering steel alloys and powder mixtures for producing such alloys.
- These powders consist of a composition of metal and the alloying components and/or alloying powder with additions of carbides, for example, chromium carbides.
- the powder mixtures are pressed and sintered and, if desired, further densificd by a cold or warm processing step.
- alloyed sinter steels of ferrous powder, carbon and alloying components in a metallic condition, for example, powder condition or of alloyed powders which are completed alloys with regard to their chemical composition but in powdered form which is produced, for example, by atomizing of alloyed smelts.
- eta-carbides as an alloying component for producing alloyed steels, however, only for producing high speed steels, by way of a powdermetallurgical method.
- the carbides added according to said conventional method serve as a carburizing or hardness improving agent, whereby up to 10 percent by weight of one or several carbides of vanadium, molybdenum, chromium and titanium are used.
- the mechanical characteristics of well known sinter steel alloys are inferior to steel alloys having an equivalent chemical composition but produced by a smelt-metallurgical process because sintered alloys, as is known, used to always retain a certain porosity impairing the mechanical characteristics.
- alloying components of a high oxygen affinity are used in the well known methods, a further impairment of the mechanical characteristics is caused by oxide inclusions.
- a metallic sintered alloy which with regard to its chemical composition corresponds to the composition of metallurgically alloyed steels such as construction steels, tool-steels, valve-steels or the like;
- the foregoing objects will be achieved by using for the compressing and sintering process a powder mixture comprising metal and carbide components as well as additives, wherein the carbide components contain 0.5 to 50 percent by weight of the total mixture, and wherein the carbide components consist completely or substantially of complex chromium carbides and/or manganese-carbides and/or mixed carbides of said elements.
- oxide inclusions are substantially avoided and the porosity of the finished sintered alloy is very much reduced, since the complex carbides have an extremely high resistance to oxidation under the conditions of the sintering process, and because said complex carbides go into solution within the ferrous matrix.
- carbides were added mainly as carborizing agents.
- the complex carbides are used as real alloying components generally, for obtaining very good mechanical characteristics and not merely a higher hardness.
- the great advantage of the method according to the invention is seen in that it enables to use the sintering method for producing steels alloyed with chromium and/or manganese.
- the alloy according to the invention is produced by pressure molding and sintering the mixture or composition, comprising an iron or alloyed steel powder, alloying powder, the complex carbides, and, if desired, further alloying elements.
- the alloy may then be subjected to an after treatment such as cold or warm deformation, calibrating, hot pressing, die forging, extruding or the like for producing shaped bodies having not only the desired shape but also a very high density.
- the complex carbide compositions are of the structure type M C and/or M C and/or M C whereby M is the metal component and C is the carbon. It is also possible to add mixed carbides of the foregoing types.
- the carbide compositions used according to the invention contain elements of the 4th, 5th, and/or 6th group of the periodical system of elements, whereby these carbides may be used in the form of composed or mixed carbides and whereby the characteristics of the sinter alloy can be influenced in the same manner as is known from the melting metallurgy.
- Such elements are, for instance, titanium, vanadium, molybdenum, wolfram and noibium.
- ferrous carbonaceous alloys in addition to the compositions of carbide.
- per cent figures mean per cent by weight of the total composition.
- EXAMPLE 1 A mixture of ferrous powder and 2 percent of complex chromium-manganese mixed carbide powder, wherein Cr/Mn are present at the ratio of H125, and to which 0.5 percent of a pressing facilitating agent such as stearic acid was added, was pressed to a blank of a density of 6.5g/cm and sintered for 60 minutes at a temperature of 1200C.
- a pressing facilitating agent such as stearic acid
- the pressed and sintered blank had a density of 6.9g/cm and a Brinell hardness of HB 2.5/1 87.5 of l50kp/mm Thereafter the sintered blank was drop-forged in a die whereby the density was increased to 7.79g/cm and the Brinell hardness to HB 2.5/l87.5 to 250kp/mm
- EXAMPLE 2 A mixture of an alloyed ferrous powder including 1.6 percent of Ni and 2 percent of complex chromiummanganese mixed carbide powder, wherein Cr/Mn are present at the ratio of l/0.3, 0.05 percent of carbon and 1 percent of a pressing facilitating agent such as stearic acid was pressed to form a blank having a density of 6.0g/cm and sintered at a temperature of 1250C for 30 minutes.
- the density of the sintered blank was 6.8g/cm and the Brinell hardness l-lB 5/5 was lOkp/mm
- the sintered blank was repressed under a pressure of 7 tons/cm at a temperature of 1150C whereby a density of 7.76g/cm was achieved.
- the alloy had a Brinell hardness HB 2.5/187.5 of 340kp/mm a tensile strength of lkp/mm a yield point of 70kp/mm and an impact strength of 5m kp.
- EXAMPLE 3 A mixture comprising ferrous powder, 12 percent Nipowder and of complex chromium manganese mixed carbide powder, wherein the ratio of Cr/Mn was l/l and 1 percent of a pressing facilitating agent such as stearic acid was pressed to a blank of a density of 6.3g/cm and sintered at a temperature of 1200C for 60 minutes to reach a density of 7.0g/cm The blank was then densitied by drop-forging in two deforming steps to a density of 7.97g/cm The tensile strength of the alloy was 95kp/mm EXAMPLE 4 A mixture comprising ferrous powder 0.5 percent of Mn, 0.4 percent of Si, percent of complex chromium-carbide containing molybdenum and vanadium in the ratios of Cr/Mo/V 18/1/0.
- a pressing facilitating agent such as stearic acid
- EXAMPLE 5 A mixture of ferrous powder, 7 percent of complex chromium-manganese mixed carbide Cr/Mn Ill, 20 percent of a powdered ferrous manganese alloy 75 percent of Mn, 5 percent of N, and 1.5 percent of a pressing facilitating agent such as stearic acid, was pressed to a blank of a density of 6.2g/cm and sintered at a temperature of 1180C for 60 minutes. The sintered blank was drop-forged and calibrated by a cold process.
- the final density was 7.75g/cm and the tensile strength of the alloy was 72kp/mm
- complex carbide refers to carbides of low carbon content, so called carbon poor carbides as distinguished from carbon rich carbides.
- the metals chromium and manganese go into solution in the basic iron mass. This has the advantage of avoiding oxide inclusions to in turn greatly reduce the porosity of the finished sinter alloy. Further, the complex carbides used according to the invention are exceptionally resistant to oxidation in the presence of the sintering conditions.
- carbides of high carbon content are added as hardness improving components of hard alloys.
- the addition of low carbon, complex carbides as taught by the invention is for the purpose of achieving especially good mechanical characteristics, especially a high toughness.
- a sinter steel alloy with chromium and/or manganese has been produced which may be used as structural, sectional steel, the texture of which is free of disturbing porosity.
- a powder composition for making a sintered steel alloy comprising a mixture of iron powders, and alloying components including carbides in powder form, said carbides being present from 0.5 to 50 percent by weight of the total composition, said carbides comprising an additive and wholly or predominantly carbon deficient carbides selected from the group consisting of chromium carbides, manganese carbides and mixed carbides of chromium and manganese and including the structural types M C, M C M C wherein M is the metal component and C is the carbon component of the carbide.
- composition for making a steel alloy according to claim 1 wherein said additive is selected from the group consisting of iron (Fe) ranging from 0 to 30 percent, cobalt (Co) ranging from 0 to 2 percent, and nickel (Ni) ranging from O to 16 percent, all by weight of the carbides.
- composition for making a steel alloy according to claim 1 wherein said additive is selected from the group consisting of titanium (Ti), zirconium (Zr), and hafnium (Hf) present from 0 to 2 percent, all by weight of the carbides.
- composition for making a steel alloy according to claim 1 wherein said additive is selected from the group consisting of vanadium (Va), niobium (Nb), and tantalum (Ta), whereby the Va is present from 0 to 25 percent, the Nb is present from 0 to 10 percent, and the Ta is present from 0 to 20 percent, all by weight of the carbides.
- Va vanadium
- Nb niobium
- Ta tantalum
- composition for making a steel alloy according to claim 1 wherein said additive is selected from the group consisting of chromium (Cr), molybdenum (Mo), and tungsten (W) all present from 0 to 25 percent, all by weight of the carbides.
- composition for making a steel alloy according to claim 1 wherein said additive comprises boron ranging from 0 to 25 percent, all by weight of the carbides.
- composition for making a steel alloy according to claim 1 further comprising carbon containing ferro-alloys ranging from 0 to 30 percent by weight of the total composition.
- composition for making a steel alloy according to claim 1 wherein said wholly or predominantly carbon deficient carbides range from 0.5 to 20 percent by weight of the total composition.
- a composition for making a sintered steel alloy comprising a mixture of powdered steel alloy or alloys and carbides in powder form, said carbides being present from 0.5 to 50 percent by weight of the totalcomposition, said carbides comprising an additive and wholly or predominantly carbon deficient carbides selected from the group consisting of chromium carbides, manganese carbides, and mixed carbides of chromium and manganese and including the structural types M C, M C M C wherein M is the metal component and C is the carbon component of the carbide.
- composition for making a steel alloy according to claim 9 wherein said additive is selected from the group consisting of iron (Fe) ranging from 0 to 30 percent, cobalt (Co) ranging from 0 to 2 percent, and nickel (Ni) ranging from 0 to 16 percent, all by weight of the carbides.
- Va vanadium
- Nb niobium
- Ta tantalum
- composition for making a steel alloy according to claim 9 further comprising carbon containing ferroalloys ranging from O to 30 percent by weight of the total composition.
- a powder composition for making a sintered steel alloy comprising a mixture of iron powders, and alloying components including carbides in powder form, said carbides being present from 0.5 to 50 percent by weight of the total composition, said carbides comprising wholly or predominantly carbon deficient carbides selected from the group consisting of chromium carbidc manganese carbides, and mixed carbides of chromium and manganese and including the structural types M C, M C M C wherein M is the metal component and C is the carbon component of the carbide.
- a composition for making a sintered steel alloy comprising a mixture of powdered steel alloy or alloys and carbides in powder form, said carbides being present from 0.5 to 50 percent by weight of the total composition, said carbides comprising wholly or predominantly carbon deficient carbides selected from the group consisting of chromium carbides, manganese carbides, and mixed carbides of chromium and manganese and including the structural types M C, M C M C wherein M is the metal component and C is the carbon component of the carbide.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2220673A DE2220673C3 (de) | 1972-04-27 | 1972-04-27 | Metallische Sinterlegierung, insbesondere Sinterstahllegierung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3890105A true US3890105A (en) | 1975-06-17 |
Family
ID=5843445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US353454A Expired - Lifetime US3890105A (en) | 1972-04-27 | 1973-04-23 | Metallic sintering powder or alloy |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3890105A (enrdf_load_stackoverflow) |
| JP (1) | JPS5213483B2 (enrdf_load_stackoverflow) |
| AT (1) | AT328482B (enrdf_load_stackoverflow) |
| CA (1) | CA984182A (enrdf_load_stackoverflow) |
| DE (1) | DE2220673C3 (enrdf_load_stackoverflow) |
| GB (1) | GB1383894A (enrdf_load_stackoverflow) |
| SE (1) | SE396619B (enrdf_load_stackoverflow) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4345942A (en) * | 1979-04-26 | 1982-08-24 | Nippon Piston Ring Co., Ltd. | Abrasion resistant sintered alloy for internal combustion engines |
| US4345943A (en) * | 1979-04-26 | 1982-08-24 | Nippon Piston Ring Co., Ltd. | Abrasion resistant sintered alloy for internal combustion engines |
| US4360383A (en) * | 1979-04-26 | 1982-11-23 | Nippon Piston Ring Co., Ltd. | Abrasion resistant sintered alloy for internal combustion engines |
| US4606767A (en) * | 1984-10-30 | 1986-08-19 | Kyocera Corporation | Decorative silver-colored sintered alloy |
| US4715486A (en) * | 1980-09-03 | 1987-12-29 | International Standard Electric Corporation | Low-wear frictionally engaging device |
| EP2163331A1 (en) * | 1998-08-06 | 2010-03-17 | Rutger Larsson Konsult AB | Alloyed, non-oxidising metal powder |
| CN104550921A (zh) * | 2014-12-25 | 2015-04-29 | 铜陵市经纬流体科技有限公司 | 一种铁基粉末冶金阀门材料及其制备方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2000257B1 (de) * | 1970-01-05 | 1971-04-01 | Deutsche Edelstahlwerke Ag | Gesinterte stahlgebundene karbidhartlegierung |
| DE2008197B1 (de) * | 1970-02-21 | 1971-07-15 | Deutsche Edelstahlwerke Ag | Gesinterte stahlgebundene karbidhartlegierung |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT247891B (de) * | 1961-11-07 | 1966-06-27 | Birmingham Small Arms Co Ltd | Metallpulvergemisch auf der Basis einer Schnellarbeitsstahllegierung mit Zusätzen von Hartstoffen für die pulvermetallurgische Herstellung von Schneidwerkzeugen |
-
1972
- 1972-04-27 DE DE2220673A patent/DE2220673C3/de not_active Expired
- 1972-05-19 AT AT441772A patent/AT328482B/de active
-
1973
- 1973-04-18 CA CA169,045A patent/CA984182A/en not_active Expired
- 1973-04-23 US US353454A patent/US3890105A/en not_active Expired - Lifetime
- 1973-04-25 SE SE7305825A patent/SE396619B/xx unknown
- 1973-04-26 GB GB1989173A patent/GB1383894A/en not_active Expired
- 1973-04-26 JP JP48048380A patent/JPS5213483B2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2000257B1 (de) * | 1970-01-05 | 1971-04-01 | Deutsche Edelstahlwerke Ag | Gesinterte stahlgebundene karbidhartlegierung |
| DE2008197B1 (de) * | 1970-02-21 | 1971-07-15 | Deutsche Edelstahlwerke Ag | Gesinterte stahlgebundene karbidhartlegierung |
Non-Patent Citations (1)
| Title |
|---|
| Chemical Abstracts, No. 104306, Vol. 71, 1969, pp. 200 QD 1.A51. * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4345942A (en) * | 1979-04-26 | 1982-08-24 | Nippon Piston Ring Co., Ltd. | Abrasion resistant sintered alloy for internal combustion engines |
| US4345943A (en) * | 1979-04-26 | 1982-08-24 | Nippon Piston Ring Co., Ltd. | Abrasion resistant sintered alloy for internal combustion engines |
| US4360383A (en) * | 1979-04-26 | 1982-11-23 | Nippon Piston Ring Co., Ltd. | Abrasion resistant sintered alloy for internal combustion engines |
| US4715486A (en) * | 1980-09-03 | 1987-12-29 | International Standard Electric Corporation | Low-wear frictionally engaging device |
| US4606767A (en) * | 1984-10-30 | 1986-08-19 | Kyocera Corporation | Decorative silver-colored sintered alloy |
| EP2163331A1 (en) * | 1998-08-06 | 2010-03-17 | Rutger Larsson Konsult AB | Alloyed, non-oxidising metal powder |
| CN104550921A (zh) * | 2014-12-25 | 2015-04-29 | 铜陵市经纬流体科技有限公司 | 一种铁基粉末冶金阀门材料及其制备方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4947206A (enrdf_load_stackoverflow) | 1974-05-07 |
| GB1383894A (en) | 1974-02-12 |
| ATA441772A (de) | 1975-06-15 |
| DE2220673B2 (de) | 1974-11-21 |
| AT328482B (de) | 1976-03-25 |
| SE396619B (sv) | 1977-09-26 |
| DE2220673C3 (de) | 1979-10-04 |
| CA984182A (en) | 1976-02-24 |
| JPS5213483B2 (enrdf_load_stackoverflow) | 1977-04-14 |
| DE2220673A1 (de) | 1973-11-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3864809A (en) | Process of producing by powder metallurgy techniques a ferritic hot forging of low flow stress | |
| EP0302430B1 (en) | Alloyed steel powder for powder metallurgy | |
| US3620690A (en) | Sintered austenitic-ferritic chromium-nickel steel alloy | |
| US4437891A (en) | Oil-atomized low-alloy steel powder | |
| US3890105A (en) | Metallic sintering powder or alloy | |
| EP1550734A1 (en) | Stainless steel powder for high temperature applications | |
| US4049429A (en) | Ferritic alloys of low flow stress for P/M forgings | |
| US4131450A (en) | Process for manufacturing cobalt-base reduced powder | |
| JP2837798B2 (ja) | 耐食性、耐摩耗性及び高温強度にすぐれるコバルト基合金 | |
| US4702772A (en) | Sintered alloy | |
| JPH10504353A (ja) | クロム、モリブデンおよびマンガンを含む鉄基粉末 | |
| EP0274542B1 (en) | Alloy steel powder for powder metallurgy | |
| JP3765633B2 (ja) | 高密度焼結合金材料およびその製造方法 | |
| JP3517505B2 (ja) | 焼結耐摩耗材用原料粉末 | |
| JPH0266139A (ja) | 低酸素粉末高速度工具鋼 | |
| JPH09157805A (ja) | 高強度鉄基焼結合金 | |
| EP0334968B1 (en) | Composite alloy steel powder and sintered alloy steel | |
| US20090142220A1 (en) | Sinter-hardening powder and their sintered compacts | |
| JPS61295302A (ja) | 焼結用低合金鉄粉末 | |
| JPH09157806A (ja) | 高強度鉄基焼結合金 | |
| JP3257196B2 (ja) | 強度および耐摩耗性に優れた摺動部材用鉄基焼結合金 | |
| JP3347773B2 (ja) | 粉末冶金用純鉄粉混合物 | |
| JPH0114985B2 (enrdf_load_stackoverflow) | ||
| JPS61117202A (ja) | 焼結用低合金鉄粉末 | |
| JPS60215736A (ja) | 高温耐摩耗性に優れた焼結合金の製造方法 |