SE525291C2 - Surface-modified stainless steel - Google Patents
Surface-modified stainless steelInfo
- Publication number
- SE525291C2 SE525291C2 SE0202107A SE0202107A SE525291C2 SE 525291 C2 SE525291 C2 SE 525291C2 SE 0202107 A SE0202107 A SE 0202107A SE 0202107 A SE0202107 A SE 0202107A SE 525291 C2 SE525291 C2 SE 525291C2
- Authority
- SE
- Sweden
- Prior art keywords
- stainless steel
- max
- wire
- strip
- sheet metal
- Prior art date
Links
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 18
- 239000010935 stainless steel Substances 0.000 title claims abstract description 17
- 238000005121 nitriding Methods 0.000 claims abstract description 8
- 239000002344 surface layer Substances 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 229910000734 martensite Inorganic materials 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-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
- 239000000654 additive Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 239000011651 chromium Substances 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 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
- 239000012535 impurity Substances 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 239000011572 manganese Substances 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 239000011733 molybdenum Substances 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 2
- 238000004881 precipitation hardening Methods 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 229910052715 tantalum Inorganic materials 0.000 claims description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 239000010937 tungsten Substances 0.000 claims description 2
- 229910052720 vanadium Inorganic materials 0.000 claims description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims 3
- 239000002184 metal Substances 0.000 claims 3
- 230000001681 protective effect Effects 0.000 claims 1
- 239000010936 titanium Substances 0.000 claims 1
- 229910052719 titanium Inorganic materials 0.000 claims 1
- 239000000758 substrate Substances 0.000 abstract description 11
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- 238000011282 treatment Methods 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000006396 nitration reaction Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- GQPLMRYTRLFLPF-UHFFFAOYSA-N nitrous oxide Inorganic materials [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/24—Nitriding
- C23C8/26—Nitriding of ferrous surfaces
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
l0 15 20 25 30 35 40 45 525 291 processen. Genom variation av dessa parametrar kan plasmanitreringen fint avpassas för att åstadkomma de önskade egenskaperna hos en behandlad komponent. l0 15 20 25 30 35 40 45 525 291 processes. By varying these parameters, the plasma nitriding can be adjusted to achieve the desired properties of a treated component.
Ett godtyckligt järn-baserat material kan underkastas plasmanitrering. Metoden kräver inte användning av speciella typer av nitrerstål. De resultat som kan åstadkommas medelst plasmanitrering kan reproduceras med precisionssäkerhet. Detta är speciellt viktigt vid tillverkning av serieprodukter. Genom US 5,632,826 är det känt en utskiljningshârdad martensitisk legering vid vilken hårdnandet baseras på partikelutskiljning. De partiklar som ger upphov till fórhårdnandet har en kvasikristallin struktur, som väsentligen är resultatet av åldring vid temperaturer upp till 1000h och anlöpningsbehandlingar upp till 650°C. Detta hårdnande inkluderar en ökning av draghâllfasheten av minst ZOOMPa. Det har nu överraskande visat sig att om stålet enligt US 5,632,826 niteras på ytan så erhålles en oväntad ytterligare ökning av ythårdheten till skillnad från substratet hos det rostfria stålet.Any iron-based material can be subjected to plasma nitration. The method does not require the use of special types of nitrous steel. The results that can be achieved by plasma nitriding can be reproduced with precision reliability. This is especially important when manufacturing series products. U.S. Pat. No. 5,632,826 discloses a precipitation-hardened martensitic alloy in which the hardening is based on particle precipitation. The particles which give rise to the lining harden have a quasi-crystalline structure, which is essentially the result of aging at temperatures up to 1000 hours and tempering treatments up to 650 ° C. This hardening includes an increase in tensile strength of at least ZOOMPa. It has now surprisingly been found that if the steel according to US 5,632,826 is riveted to the surface, an unexpected further increase in the surface hardness is obtained in contrast to the substrate of the stainless steel.
Mot bakgrund härav är det ett syfte med uppfinningen att åstadkomma en rostfri stållegering som kännetecknas av ökad hårdhet på ytan av legeringen erfier ytmodifiering samtidigt som hårdheten hos substratet hos det rostfria stålet också ökas.Against this background, it is an object of the invention to provide a stainless steel alloy which is characterized by increased hardness on the surface of the alloy your surface modification at the same time as the hardness of the substrate of the stainless steel is also increased.
Ett annat syfle med uppfinningen är att åstadkomma produkter gjorda av nämnda ytmodifierade rostfria stål. Ett ytterligare syfte med uppfinningen är att åstadkomma ett rostfiitt stålsubstrat för beläggning med nötningsresistenta skikt.Another object of the invention is to provide products made of said surface-modified stainless steels. A further object of the invention is to provide a stainless steel substrate for coating with abrasion resistant layers.
Beskrivning av ritninggrna Figur l visar en med ljusoptik tagen bild av rnikrostrukturen hos ett prov av ytan hos det modifierade stålet enligt uppfinningen i en förstoring av 500x där A är det ytniterade skiktet och B är grundmassan hos det rostfria stålet.Description of the drawing diagrams Figure 1 shows a light optically taken image of the microstructure of a sample of the surface of the modified steel according to the invention at a magnification of 500x where A is the surface riveted layer and B is the matrix of the stainless steel.
Figur 2 visar hårdheten (i HV) som ftmktion av djupet (i mm) mätt från ytan Detaljerad beskrivning av uppfinningen Det rostfria stålsubstratet enligt uppfinningen har, före ytmodifieringen, följande sammansättning (i vikt-%) Kol max 0,1 Kväve max 0,1 Koppar 0,5-4 Krom 10-14 Molybden 0,5-6 Nickel 7-1 1 Kobolt 0-9 Tantal max 0,1 Niob max 0,1 Vanadin max 0,1 Wolfram max 0,1 Aluminium 0,05-0,6 Titan o,4-1,4 10 15 20 25 30 jess 40 45 ':00:0 con ..Figure 2 shows the hardness (in HV) as a function of the depth (in mm) measured from the surface Detailed description of the invention The stainless steel substrate according to the invention has, before the surface modification, the following composition (in% by weight) Carbon max 0.1 Nitrogen max 0, 1 Copper 0.5-4 Chromium 10-14 Molybdenum 0.5-6 Nickel 7-1 1 Cobalt 0-9 Tantalum max 0.1 Niob max 0.1 Vanadium max 0.1 Tungsten max 0.1 Aluminum 0.05 -0.6 Titan o, 4-1.4 10 15 20 25 30 jess 40 45 ': 00: 0 con ..
Kisel max 0,7 Mangan _<_ 1,0 Järn rest samt normalt förekommande tillsatser och föroreningar vid ståltillverkning.Silicon max 0.7 Manganese _ <_ 1.0 Iron residue and normal additives and impurities in steel production.
Det nämnda rostfiia stålet innehåller kvasilnistallina partiklar i den martensitiska mikrostrukturen som ett resultat av en utskiljningshärdning.The aforementioned stainless steel contains quasi-crystalline particles in the martensitic microstructure as a result of a precipitation hardening.
Plasmanitrering är en ytbehandlingsprocess, som använder sig av egenskaperna hos gasplasma, det vill säga en joniserad gas, för att åstadkomma önskvärda mekaniska egenskaper i ytan hos arbetsstycket De parametrar som huvudsakligen påverkar nitreringen är tryck, temperatur och behandlingstid liksom den kemiska sarmnan- sättningen hos den joniserade processgasen. Plasmanitreringen äger rum vid ett vakuumtryck mellan 0,3 och 10 mbar. Det aktuella behandlingstryck som valts styrs av geometrin hos detalj en och den önskade ytskiktsstrukturen.Plasma nitriding is a surface treatment process which uses the properties of gas plasma, i.e. an ionized gas, to achieve desirable mechanical properties in the surface of the workpiece. The parameters which mainly affect the nitriding are pressure, temperature and treatment time as well as the chemical co-application of ionized process gas. Plasma monitoring takes place at a vacuum pressure between 0.3 and 10 mbar. The actual treatment pressure selected is governed by the geometry of detail one and the desired surface layer structure.
Behandlingstemperaturen skall ligga i området 400-580°C och väljsi enlighet med vilken typ av material och för-behandling av detaljen och den önskade skiktsuulctur som valts. Behandlingstiden varierar mellan 10 minuter och 70 timmar och beror av detalj en som ska behandlas liksom den önskade strukturen och tj ockleken hos de skikt som ska bildas. Vid plasmanitreringen används ammoniak eller gasblandningar som innehåller metan, kväve och vätgas såsom processgas. Den processgas som används väljs beroende på naturen hos den detalj som ska behandlas och den erforderliga skiktstrukturen.The treatment temperature should be in the range 400-580 ° C and selected according to the type of material and pretreatment of the part and the desired layer structure selected. The treatment time varies between 10 minutes and 70 hours and depends on the detail to be treated as well as the desired structure and thickness of the layers to be formed. In plasma nitration, ammonia or gas mixtures containing methane, nitrogen and hydrogen are used as process gas. The process gas used is selected depending on the nature of the detail to be treated and the required layer structure.
Uppfinningen avser också ett material som behandlats medelst metoden enligt uppfmningen i form av tråd, band, rör och andra geometrier, speciellt komplexa geometrier att användas i applikationer med höga krav på en kombination av hög hållfasthet och/eller seghet och nötningsresistens, såsom exempelvis slitdelar i motorer eller andra motorkomponenter, och slagbelastade, såsom säkerhetsdetaljer, ventillyfiare, ventillyfiarkudde, ventilskafi, ventilstyrorgan, kolvbultar, kolvskaft, hydrauliska kolvar, ej ectorpinnar, låscylindrar och andra låsanordningar, blockeringselement, stöldskyddsutrusming eller liknande.The invention also relates to a material treated by the method according to the invention in the form of wire, strip, pipe and other geometries, especially complex geometries for use in applications with high demands on a combination of high strength and / or toughness and abrasion resistance, such as wear parts in engines or other engine components, and impact loads, such as safety features, valves, ventilly airbags, valves, valve guides, piston bolts, piston shafts, hydraulic pistons, non-ector pins, lock cylinders and other locking devices, blocking elements, anti-theft devices or the like.
Det enligt ovan tidigare beskrivna substratet underkastades en ytmodifiering genom plasmatnitrering vid 450-580°C under en tid av 1-40 timmar. Demia process resulterar i en härdning av ytan till ett skikt av 0,05-0,5 mm tjocklek. Härdningsprocessen kan utföras på tråd, platta, band, rör och detaljer med en bred variation ifråga om geometri, speciellt komplexa geometrier. Det är en speciell fördel hos det rostfria stålsubstratet som används enligt uppfinningen att de mycket komplexa geometrierna kan erhållas utan några dimensionstörändringar. Hårdheten hos ytan är minst två gånger hårdheten hos substratet 0,5 mm in i rundmassan. Det ger en hårdhet av 1200 HV, företrädesvis minst 1100 HV. Figur 1 visar hårdhetsprofilen från ytan hos substratet och in i grundmassan. Det har oväntat visat sig att härdningeseffekten är synbar ner till 0,5 mm in i grundmassan. Det anses därför utgöra en stor fördel med denna kombination av substrat och metoden för ytbehandling som skapar ett ytmodifierat material med en djup-härdad ytzon.The substrate as previously described above was subjected to a surface modification by plasma nitration at 450-580 ° C for a period of 1-40 hours. Demia process results in a hardening of the surface to a layer of 0.05-0.5 mm thickness. The curing process can be performed on wire, plate, strip, pipe and parts with a wide variety in terms of geometry, especially complex geometries. It is a special advantage of the stainless steel substrate used according to the invention that the very complex geometries can be obtained without any dimensional changes. The hardness of the surface is at least twice the hardness of the substrate 0.5 mm into the round mass. It gives a hardness of 1200 HV, preferably at least 1100 HV. Figure 1 shows the hardness profile from the surface of the substrate and into the matrix. It has unexpectedly been found that the curing effect is visible down to 0.5 mm into the matrix. It is therefore considered to be a great advantage with this combination of substrates and the method of surface treatment that creates a surface-modified material with a deep-cured surface zone.
Sålunda har härigenom tillskapats ett ytmodifierat rostfritt stål enligt uppfmningen som är speciellt lämpat för att användas som substrat för påtörande av en nötningsresistent beläggning.Thus, a surface-modified stainless steel according to the invention has been created which is particularly suitable for use as a substrate for applying an abrasion-resistant coating.
Claims (6)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0202107A SE525291C2 (en) | 2002-07-03 | 2002-07-03 | Surface-modified stainless steel |
| AU2003245216A AU2003245216A1 (en) | 2002-07-03 | 2003-07-02 | Surface modified stainless steel |
| EP03738843A EP1518002A1 (en) | 2002-07-03 | 2003-07-02 | Surface modified stainless steel |
| JP2004519462A JP2005531694A (en) | 2002-07-03 | 2003-07-02 | Surface modified stainless steel |
| US10/519,711 US20060102253A1 (en) | 2002-07-03 | 2003-07-02 | Surface modified stainless steel |
| PCT/SE2003/001159 WO2004005572A1 (en) | 2002-07-03 | 2003-07-02 | Surface modified stainless steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0202107A SE525291C2 (en) | 2002-07-03 | 2002-07-03 | Surface-modified stainless steel |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| SE0202107D0 SE0202107D0 (en) | 2002-07-03 |
| SE0202107L SE0202107L (en) | 2004-02-26 |
| SE525291C2 true SE525291C2 (en) | 2005-01-25 |
Family
ID=20288446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE0202107A SE525291C2 (en) | 2002-07-03 | 2002-07-03 | Surface-modified stainless steel |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20060102253A1 (en) |
| EP (1) | EP1518002A1 (en) |
| JP (1) | JP2005531694A (en) |
| AU (1) | AU2003245216A1 (en) |
| SE (1) | SE525291C2 (en) |
| WO (1) | WO2004005572A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4461014B2 (en) * | 2002-07-29 | 2010-05-12 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Plasma nitriding of maraging steel, shaver cap and cutting device for electric shaver manufactured from such maraging steel, and electric shaver |
| SE526501C2 (en) * | 2003-01-13 | 2005-09-27 | Sandvik Intellectual Property | Method of surface modifying a precipitation-hardened stainless steel |
| SE526481C2 (en) * | 2003-01-13 | 2005-09-20 | Sandvik Intellectual Property | Surface hardened stainless steel with improved abrasion resistance and low static friction |
| DE102005013088B4 (en) * | 2005-03-18 | 2006-12-28 | Man B & W Diesel Ag | Gas exchange valve with corrosion protection layer |
| SE529010C2 (en) * | 2005-10-17 | 2007-04-10 | Sandvik Intellectual Property | Thin walled tube for sport appliance, hand tool, unit for transportation and furniture such as chair, contains precipitated hardenable stainless steel and has ratio of outer circumference and wall thickness in preset range |
| SE531483C2 (en) * | 2005-12-07 | 2009-04-21 | Sandvik Intellectual Property | String for musical instruments including precipitation hardening stainless steel |
| JP4866178B2 (en) * | 2006-08-29 | 2012-02-01 | バンドー化学株式会社 | Auto tensioner |
| JP5217244B2 (en) * | 2007-05-22 | 2013-06-19 | 日産自動車株式会社 | Non-aqueous secondary battery |
| US20110277886A1 (en) | 2010-02-20 | 2011-11-17 | Nucor Corporation | Nitriding of niobium steel and product made thereby |
| US9212416B2 (en) * | 2009-08-07 | 2015-12-15 | Swagelok Company | Low temperature carburization under soft vacuum |
| CN102308118B (en) * | 2010-04-28 | 2013-04-17 | 丰田自动车株式会社 | Metal ring and method for producing same |
| AU2013210034A1 (en) | 2012-01-20 | 2014-09-11 | Swagelok Company | Concurrent flow of activating gas in low temperature carburization |
| DE102012212426B3 (en) * | 2012-07-16 | 2013-08-29 | Schaeffler Technologies AG & Co. KG | Rolling element, in particular rolling bearing ring |
| US20160208372A1 (en) * | 2013-08-27 | 2016-07-21 | University Of Virginia Patent Foundation | Lattice materials and structures and related methods thereof |
| US10151043B1 (en) * | 2013-12-10 | 2018-12-11 | Ibc Technologies, Ltd. | Methods of producing coated locator pins and locator pins made therefrom |
| DE102015111993A1 (en) * | 2015-07-23 | 2017-01-26 | Schott Ag | Forming mandrel with diffusion layer for glass forming |
| US10859031B2 (en) * | 2018-03-06 | 2020-12-08 | Ai Alpine Us Bidco Inc | Thermally compensated bore guide systems and methods |
| JP7252051B2 (en) * | 2018-05-17 | 2023-04-04 | 株式会社神戸製鋼所 | Solid wire and weld joints for electroslag welding |
| IT201900002849A1 (en) * | 2019-02-27 | 2020-08-27 | Asso Werke S R L Unipersonale | Set screw for piston rings |
| KR102330937B1 (en) | 2020-05-22 | 2021-11-24 | 동의대학교 산학협력단 | Method for manufacturing martensitic precipitation hardening stainless steel for improving corrosion resistance and surface hardness and method for surface treatment of cable protector |
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| US3988955A (en) * | 1972-12-14 | 1976-11-02 | Engel Niels N | Coated steel product and process of producing the same |
| USH1210H (en) * | 1990-04-04 | 1993-07-06 | Surface hardening of reprographic machine components by coating or treatment processes | |
| US5197783A (en) * | 1991-04-29 | 1993-03-30 | Esso Resources Canada Ltd. | Extendable/erectable arm assembly and method of borehole mining |
| US5241748A (en) * | 1991-06-27 | 1993-09-07 | Teikoku Piston Ring Co., Ltd. | Method for manufacturing a compression ring |
| JPH0544839A (en) * | 1991-08-09 | 1993-02-23 | Teikoku Piston Ring Co Ltd | Combined oil ring |
| DE4421144C2 (en) * | 1993-07-21 | 2003-02-13 | Unaxis Balzers Ag | Coated tool with increased service life |
| SE508684C2 (en) * | 1993-10-07 | 1998-10-26 | Sandvik Ab | Precision-hardened iron alloy with quasi-crystalline structure particles |
| GB9715180D0 (en) * | 1997-07-19 | 1997-09-24 | Univ Birmingham | Process for the treatment of austenitic stainless steel articles |
| SE518600C2 (en) * | 1999-11-17 | 2002-10-29 | Sandvik Ab | automotive Suppliers |
| GB2364530B (en) * | 2000-06-21 | 2002-10-16 | Alstom Power Nv | Method of finish treating a steel blade for use in turbomachinery |
| IL158081A0 (en) * | 2001-03-27 | 2004-03-28 | Crs Holdings Inc | Stainless steel alloy and elongated strips formed thereof |
| JP2003301888A (en) * | 2002-04-12 | 2003-10-24 | Tsubakimoto Chain Co | Silent chain |
| SE526501C2 (en) * | 2003-01-13 | 2005-09-27 | Sandvik Intellectual Property | Method of surface modifying a precipitation-hardened stainless steel |
| SE526481C2 (en) * | 2003-01-13 | 2005-09-20 | Sandvik Intellectual Property | Surface hardened stainless steel with improved abrasion resistance and low static friction |
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2002
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- 2003-07-02 AU AU2003245216A patent/AU2003245216A1/en not_active Abandoned
- 2003-07-02 EP EP03738843A patent/EP1518002A1/en not_active Withdrawn
- 2003-07-02 WO PCT/SE2003/001159 patent/WO2004005572A1/en active Application Filing
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| SE0202107D0 (en) | 2002-07-03 |
| SE0202107L (en) | 2004-02-26 |
| US20060102253A1 (en) | 2006-05-18 |
| WO2004005572A1 (en) | 2004-01-15 |
| JP2005531694A (en) | 2005-10-20 |
| EP1518002A1 (en) | 2005-03-30 |
| AU2003245216A1 (en) | 2004-01-23 |
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