DE3280464T2 - Verfahren zur Herstellung korrosionsbeständiger Werkstücke aus Stahl. - Google Patents
Verfahren zur Herstellung korrosionsbeständiger Werkstücke aus Stahl.Info
- Publication number
- DE3280464T2 DE3280464T2 DE3280464T DE3280464T DE3280464T2 DE 3280464 T2 DE3280464 T2 DE 3280464T2 DE 3280464 T DE3280464 T DE 3280464T DE 3280464 T DE3280464 T DE 3280464T DE 3280464 T2 DE3280464 T2 DE 3280464T2
- Authority
- DE
- Germany
- Prior art keywords
- component
- heat treatment
- layer
- carried out
- iron
- 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
- 238000000034 method Methods 0.000 title claims description 32
- 230000008569 process Effects 0.000 title claims description 17
- 238000004519 manufacturing process Methods 0.000 title description 4
- 239000010935 stainless steel Substances 0.000 title description 2
- 239000010410 layer Substances 0.000 claims description 33
- 238000010438 heat treatment Methods 0.000 claims description 32
- 239000000203 mixture Substances 0.000 claims description 29
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 26
- 239000002344 surface layer Substances 0.000 claims description 25
- 229910000704 hexaferrum Inorganic materials 0.000 claims description 24
- 230000003647 oxidation Effects 0.000 claims description 22
- 238000007254 oxidation reaction Methods 0.000 claims description 22
- 150000004767 nitrides Chemical class 0.000 claims description 20
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 18
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 16
- 238000005260 corrosion Methods 0.000 claims description 15
- 230000007797 corrosion Effects 0.000 claims description 14
- 229910052742 iron Inorganic materials 0.000 claims description 13
- 238000005121 nitriding Methods 0.000 claims description 12
- 230000001590 oxidative effect Effects 0.000 claims description 8
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 7
- 230000003746 surface roughness Effects 0.000 claims description 5
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 229910052717 sulfur Inorganic materials 0.000 claims 1
- 239000011593 sulfur Substances 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 49
- 239000007789 gas Substances 0.000 description 31
- 238000010791 quenching Methods 0.000 description 31
- 230000000171 quenching effect Effects 0.000 description 29
- 239000003570 air Substances 0.000 description 26
- 150000003839 salts Chemical class 0.000 description 26
- 229910000831 Steel Inorganic materials 0.000 description 24
- 229910052757 nitrogen Inorganic materials 0.000 description 24
- 239000010959 steel Substances 0.000 description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 24
- 229910001868 water Inorganic materials 0.000 description 21
- 238000001816 cooling Methods 0.000 description 20
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 17
- 239000001301 oxygen Substances 0.000 description 17
- 229910052760 oxygen Inorganic materials 0.000 description 17
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 16
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 14
- 239000007921 spray Substances 0.000 description 12
- 238000011282 treatment Methods 0.000 description 11
- 239000000839 emulsion Substances 0.000 description 10
- 229910021529 ammonia Inorganic materials 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 239000001569 carbon dioxide Substances 0.000 description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000006104 solid solution Substances 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000010884 ion-beam technique Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000007764 o/w emulsion Substances 0.000 description 3
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- -1 argon ions Chemical class 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 125000004433 nitrogen atom Chemical group N* 0.000 description 2
- 238000007517 polishing process Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000010583 slow cooling Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- UTPYTEWRMXITIN-YDWXAUTNSA-N 1-methyl-3-[(e)-[(3e)-3-(methylcarbamothioylhydrazinylidene)butan-2-ylidene]amino]thiourea Chemical compound CNC(=S)N\N=C(/C)\C(\C)=N\NC(=S)NC UTPYTEWRMXITIN-YDWXAUTNSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- XKRFYHLGVUSROY-UHFFFAOYSA-N argon Substances [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000005323 carbonate salts Chemical class 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 231100000481 chemical toxicant Toxicity 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010849 ion bombardment Methods 0.000 description 1
- 229910001337 iron nitride Inorganic materials 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- GKKCIDNWFBPDBW-UHFFFAOYSA-M potassium cyanate Chemical compound [K]OC#N GKKCIDNWFBPDBW-UHFFFAOYSA-M 0.000 description 1
- NNFCIKHAZHQZJG-UHFFFAOYSA-N potassium cyanide Chemical compound [K+].N#[C-] NNFCIKHAZHQZJG-UHFFFAOYSA-N 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000011833 salt mixture Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000003440 toxic substance Substances 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
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- 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
- C23C8/34—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 more than one element being applied in more than one step
-
- 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
- C23C8/80—After-treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8131133 | 1981-10-15 | ||
| GB8138318 | 1981-12-18 | ||
| GB8205999 | 1982-02-26 | ||
| GB8220495 | 1982-07-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3280464D1 DE3280464D1 (de) | 1995-02-16 |
| DE3280464T2 true DE3280464T2 (de) | 1995-05-24 |
Family
ID=27449280
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE3280464T Expired - Lifetime DE3280464T2 (de) | 1981-10-15 | 1982-10-11 | Verfahren zur Herstellung korrosionsbeständiger Werkstücke aus Stahl. |
| DE8282305400T Expired DE3277460D1 (en) | 1981-10-15 | 1982-10-11 | Corrosion resistant steel components and method of manufacture |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE8282305400T Expired DE3277460D1 (en) | 1981-10-15 | 1982-10-11 | Corrosion resistant steel components and method of manufacture |
Country Status (11)
| Country | Link |
|---|---|
| US (2) | US4496401A (enExample) |
| EP (1) | EP0077627B1 (enExample) |
| JP (1) | JPH0699796B2 (enExample) |
| AU (1) | AU555300B2 (enExample) |
| BR (1) | BR8206004A (enExample) |
| DE (2) | DE3280464T2 (enExample) |
| ES (1) | ES516577A0 (enExample) |
| IN (1) | IN157874B (enExample) |
| PL (1) | PL139312B1 (enExample) |
| SU (1) | SU1407404A3 (enExample) |
| YU (1) | YU43100B (enExample) |
Families Citing this family (60)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8310102D0 (en) * | 1983-04-14 | 1983-05-18 | Lucas Ind Plc | Corrosion resistant steel components |
| US4756774A (en) * | 1984-09-04 | 1988-07-12 | Fox Steel Treating Co. | Shallow case hardening and corrosion inhibition process |
| GB2173513B (en) * | 1985-02-25 | 1989-06-14 | Lucas Ind Plc | Making of steel component |
| GB8507230D0 (en) * | 1985-03-20 | 1985-04-24 | Lucas Ind Plc | Thin flat article with hardened surfaces |
| FR2588281B1 (fr) * | 1985-10-08 | 1991-08-16 | Air Liquide | Procede de traitement thermique pour la realisation de pieces en acier resistant a la corrosion |
| US5024697A (en) * | 1986-01-13 | 1991-06-18 | Ashland Oil, Inc. | Coating composition and method for forming a self-heating corrosion preventative film |
| US4981757A (en) * | 1986-01-13 | 1991-01-01 | Ashland Oil, Inc. | Coating compositions and method for forming a self-healing corrosion preventative film |
| US5037491A (en) * | 1986-02-28 | 1991-08-06 | Fox Patrick L | Shallow case hardening and corrosion inhibition process |
| US5182171A (en) * | 1986-06-26 | 1993-01-26 | Taiyo Steel Co., Ltd. | Conductive and corrosion-resistant steel sheet |
| US4776901A (en) * | 1987-03-30 | 1988-10-11 | Teledyne Industries, Inc. | Nitrocarburizing and nitriding process for hardening ferrous surfaces |
| GB2208658B (en) * | 1987-07-17 | 1992-02-19 | Lucas Ind Plc | Manufacture of corrosion resistant steel components |
| JP2786873B2 (ja) * | 1988-02-18 | 1998-08-13 | 三洋電機株式会社 | ピストンの製造方法 |
| CA2016843A1 (en) * | 1990-05-15 | 1991-11-15 | Michel J. Korwin | Thermochemical treatment of machinery components for improved corrosion resistance |
| DE4027011A1 (de) * | 1990-08-27 | 1992-03-05 | Degussa | Verfahren zur verbesserung der korrosionsbestaendigkeit nitrocarburierter bauteile aus eisenwerkstoffen |
| FR2672059B1 (fr) * | 1991-01-30 | 1995-04-28 | Stephanois Rech Mec | Procede pour conferer a des pieces en metal ferreux, nitrurees puis oxydees, une excellente resistance a la corrosion tout en conservant les proprietes acquises de friction. |
| FR2679258B1 (fr) * | 1991-07-16 | 1993-11-19 | Centre Stephanois Recherc Meca | Procede de traitement de pieces en metal ferreux pour ameliorer simultanement leur resistance a la corrosion et leurs proprietes de friction. |
| US5501631A (en) * | 1994-01-06 | 1996-03-26 | Cummins-Allison Corp. | Coin handling device with an improved lubrication system |
| US5370575A (en) * | 1994-01-06 | 1994-12-06 | Cummins-Allison Corp. | Coin sorting mechanism |
| USH1512H (en) * | 1994-02-28 | 1996-01-02 | New Venture Gear, Inc. | Viscous coupling plate hardening and flattening method |
| DE4426846A1 (de) * | 1994-07-28 | 1994-12-15 | Suspa Compart Ag | Längenverstellbare Gasfeder für Stühle, Tische o. dgl. |
| FR2729614B1 (fr) | 1995-01-20 | 1997-04-18 | Guitel Etienne Mobilor | Roulette pivotante a blocage directionnel protege |
| US5707460A (en) * | 1995-07-11 | 1998-01-13 | Porter-Cable Corporation | Method of producing parts having improved wear, fatigue and corrosion resistance from medium alloy, low carbon steel and parts obtained therefrom |
| US5714015A (en) * | 1996-04-22 | 1998-02-03 | Frantz Manufacturing | Ferritic nitrocarburization process for steel balls |
| IT1298200B1 (it) * | 1998-01-26 | 1999-12-20 | Packing Agency S A | Procedimento per conferire una protezione diretta contro la corrosione ad usura a pezzi metallici |
| US7132018B2 (en) * | 1999-05-20 | 2006-11-07 | Magnetic Metals Corporation | Magnetic core insulation |
| US7077919B2 (en) * | 1999-05-20 | 2006-07-18 | Magnetic Metals Corporation | Magnetic core insulation |
| ATE280847T1 (de) * | 2000-02-04 | 2004-11-15 | Ipsen Int Gmbh | Verfahren und verwendung einer vorrichtung zum nitrocarburieren von eisenwerkstoffen |
| EP1122331B1 (de) * | 2000-02-04 | 2003-03-26 | Ipsen International GmbH | Verfahren zum Nitrieren und/oder Nitrocarburieren von höher legierten Stählen |
| RU2194794C2 (ru) * | 2000-08-04 | 2002-12-20 | Открытое акционерное общество "Уральский научно-исследовательский технологический институт" | Способ изготовления стальных деталей |
| DE10062431A1 (de) * | 2000-12-18 | 2002-06-20 | Continental Teves Ag & Co Ohg | Hydraulischer Kolben sowie Verfahren zu seiner Oberflächenbehandlung |
| JP4998654B2 (ja) * | 2001-01-31 | 2012-08-15 | 日立オートモティブシステムズ株式会社 | 鋼部材のガス軟窒化処理方法 |
| US6997099B1 (en) | 2001-03-30 | 2006-02-14 | Hydro-Gear Limited Partnership | Hydraulic pump apparatus |
| US6880449B1 (en) | 2001-03-30 | 2005-04-19 | Hydro-Gear Limited Partnership | Center section and running components for hydrostatic unit and method of manufacture |
| DE10127020B4 (de) * | 2001-06-01 | 2004-07-08 | Federal-Mogul Friedberg Gmbh | Kolbenring mit einer Oxid-Nitrid-Verbundschicht |
| GB2383800A (en) * | 2001-07-25 | 2003-07-09 | Nsk Europ Technology Co Ltd | Performance enhancement of steel auxiliary bearing components |
| JP3748425B2 (ja) * | 2002-09-04 | 2006-02-22 | パーカー熱処理工業株式会社 | 耐食性を強化された金属部材の塩浴窒化方法 |
| WO2007029772A1 (ja) | 2005-09-08 | 2007-03-15 | Nissan Motor Co., Ltd. | 遷移金属窒化物、燃料電池用セパレータ、燃料電池スタック、燃料電池車両、遷移金属窒化物の製造方法及び燃料電池用セパレータの製造方法 |
| CA2634252A1 (en) * | 2005-12-21 | 2007-07-05 | Exxonmobil Research And Engineering Company | Corrosion resistant material for reduced fouling, heat transfer component with improved corrosion and fouling resistance, and method for reducing fouling |
| US8201619B2 (en) | 2005-12-21 | 2012-06-19 | Exxonmobil Research & Engineering Company | Corrosion resistant material for reduced fouling, a heat transfer component having reduced fouling and a method for reducing fouling in a refinery |
| CN100445032C (zh) * | 2005-12-26 | 2008-12-24 | 张明亮 | 不锈钢饮用水压力容器内外表面处理工艺 |
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| JPS53371B2 (enExample) * | 1972-01-13 | 1978-01-07 | ||
| JPS5022726A (enExample) * | 1973-07-02 | 1975-03-11 | ||
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| EP0058278B1 (en) * | 1980-12-10 | 1986-04-23 | LUCAS INDUSTRIES public limited company | Link and windscreen wiper mechanism including same |
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-
1982
- 1982-10-08 US US06/433,380 patent/US4496401A/en not_active Expired - Lifetime
- 1982-10-11 DE DE3280464T patent/DE3280464T2/de not_active Expired - Lifetime
- 1982-10-11 DE DE8282305400T patent/DE3277460D1/de not_active Expired
- 1982-10-11 EP EP82305400A patent/EP0077627B1/en not_active Expired
- 1982-10-14 BR BR8206004A patent/BR8206004A/pt not_active IP Right Cessation
- 1982-10-14 SU SU823504253A patent/SU1407404A3/ru active
- 1982-10-14 AU AU89383/82A patent/AU555300B2/en not_active Ceased
- 1982-10-15 ES ES516577A patent/ES516577A0/es active Granted
- 1982-10-15 IN IN1211/CAL/82A patent/IN157874B/en unknown
- 1982-10-15 PL PL1982238640A patent/PL139312B1/pl unknown
- 1982-10-15 YU YU2328/82A patent/YU43100B/xx unknown
-
1984
- 1984-11-05 US US06/668,032 patent/US4596611A/en not_active Expired - Lifetime
-
1988
- 1988-07-13 JP JP17281288A patent/JPH0699796B2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0077627A2 (en) | 1983-04-27 |
| PL139312B1 (en) | 1987-01-31 |
| PL238640A1 (en) | 1983-05-09 |
| EP0077627A3 (en) | 1984-10-10 |
| JPH0699796B2 (ja) | 1994-12-07 |
| JPS6452054A (en) | 1989-02-28 |
| SU1407404A3 (ru) | 1988-06-30 |
| BR8206004A (pt) | 1983-09-13 |
| YU232882A (en) | 1985-03-20 |
| EP0077627B1 (en) | 1987-10-14 |
| DE3280464D1 (de) | 1995-02-16 |
| AU555300B2 (en) | 1986-09-18 |
| US4496401A (en) | 1985-01-29 |
| ES8402027A1 (es) | 1984-01-16 |
| DE3277460D1 (en) | 1987-11-19 |
| IN157874B (enExample) | 1986-07-12 |
| ES516577A0 (es) | 1984-01-16 |
| YU43100B (en) | 1989-02-28 |
| AU8938382A (en) | 1983-04-21 |
| US4596611A (en) | 1986-06-24 |
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Owner name: SENIOR HEAT TREATMENT LTD., LUTON, BEDFORDSHIRE, G |
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Free format text: SERWE, K., DIPL.-ING., PAT.-ANW., 54290 TRIER |