公开(公告)号：US4531984A

公开(公告)日：1985-07-30

申请号：US476369

申请日：1983-03-17

Applicant: Michel Madsac ,  Thierry Hiron

Inventor： Michel Madsac ,  Thierry Hiron

IPC: C23C8/26 ,  C23C8/32 ,  C21D1/00 ,  C23C11/14

CPC classification number: C23C8/26 ,  C23C8/32

Abstract: In a surface hardening process for metal parts by nitriding or carbonitriding, the parts to be treated are placed in a furnace and maintained at a temperature of between 490.degree. C. and 750.degree. C., in a nitrogen bearing atmosphere, such atmosphere formed by introducing into the furnace a gaseous mixture comprising in particular ammonia and an oxidizing gas for accelerating the catalytic dissociation of ammonia in contact with said parts. The oxidizing gas is nitrous oxide and the gaseous mixture contains about 0.1% to 10% by volume of nitrous oxide. The invention is well suited for the surface hardening of steel parts.

Abstract translation: 在通过氮化或碳氮共渗的金属部件的表面硬化处理中，将待处理的部件放置在炉中并在氮气承载气氛中保持在490℃至750℃的温度， 向炉中引入包含特别是氨和氧化气体的气态混合物，用于加速与所述部件接触的氨的催化分解。 氧化气体是一氧化二氮，气体混合物含有约0.1％至10体积％的一氧化二氮。 本发明非常适用于钢部件的表面硬化。

公开(公告)号：US4496401A

公开(公告)日：1985-01-29

申请号：US433380

申请日：1982-10-08

Applicant: Cyril Dawes ,  John D. Smith

Inventor： Cyril Dawes ,  John D. Smith

IPC: C21D1/72 ,  C21D9/00 ,  C23C8/26 ,  C23C8/32 ,  C23C8/34 ,  C23C8/80 ,  C23C11/14

CPC classification number: C23C8/26 ,  C21D9/0068 ,  C23C8/34 ,  C23C8/80

Abstract: A non-alloy steel component is nitrocarburized at 550.degree. to 720.degree. C. for up to 4 hours in a nitriding gaseous atmosphere eg. ammonia or ammonia and endothermic or exothermic gas, and is thus exposed to air or other oxidizing atmosphere for 2 to 120 seconds to form an oxide-rich layer thereon before being quenched into an oil/water emulsion, degreased and a tack-free wax coating applied. Alternatively, the component may be cooled in air or other oxidizing atmosphere and then wax coated or it may be cooled in a non-oxidizing atmosphere and then reheated to provide the oxide-rich surface layer before being cooled again and wax coated. As a further alternative, the component may be cooled, lapped to a surface roughness of not more than 0.2 micrometers Ra, reheated to oxidize and then quenched. These techniques give a good corrosion resistance to the component.

Abstract translation: 非合金钢组分在氮化气氛中在550至720℃下氮碳共渗达4小时。 氨或氨和吸热或放热气体，然后暴露于空气或其他氧化气氛2至120秒，以在其中淬火成油/水乳液，脱脂和无粘性蜡涂层之前在其上形成氧化物富集层 应用。 或者，组分可以在空气或其它氧化气氛中冷却，然后蜡涂覆，或者可以在非氧化性气氛中冷却，然后再次加热，再提供富氧表面层，然后再次冷却并涂蜡。 作为另外的替代方案，可以将组分冷却，研磨成不大于0.2微米的Ra的表面粗糙度，再加热氧化然后骤冷。 这些技术对组分提供良好的耐腐蚀性。

公开(公告)号：US3830670A

公开(公告)日：1974-08-20

申请号：US24285772

申请日：1972-04-10

Applicant: SURFACE TECHNOLOGY CORP

Inventor： VAN THYNE R ,  RAUSCH J

IPC: C23C8/00 ,  C23C8/20 ,  C23C8/34 ,  C21D9/22 ,  C23C11/14

CPC classification number: C23C8/34 ,  C23C8/00 ,  C23C8/20

Abstract: A carburized, multiphase material formed of at least one metal of each of Group I, II, and III. Group I is columbium, tantalum, and vanadium; Group II is titanium, zirconium and hafnium; and Group III is molybdenum, tungsten, rhenium and chromium. Have excellent abrasion resistance.

Abstract translation: 由I，II和III组中的至少一种金属形成的渗碳多相材料。 第一组是铌，钽和钒; 组II为钛，锆和铪; 而III族是钼，钨，铼和铬。 具有优异的耐磨性。

公开(公告)号：US3764405A

公开(公告)日：1973-10-09

申请号：US3764405D

申请日：1972-03-20

Applicant: SURFACE TECHNOLOGY CORP

Inventor： RAUSCH J ,  VAN THYNE R

IPC: B23B27/14 ,  C22C27/00 ,  C23C8/24 ,  C23C8/28 ,  C22C29/00 ,  C23C11/14

CPC classification number: C23C8/28 ,  B23B27/148 ,  C22C27/00 ,  C23C8/24

Abstract: GRADED NITRIDED ARTICLES, SURFACE MODIFIED IN ALLOY COMPOSITION WHEREIN THE SURFACE ZONE CONSISTS OF NITRIDED ALLOYS CONSISTING ESSENTIALLY OF (A) ONE OR MORE METALS OF THE GROUP COLUMBIUM, TANTALUM, AND VANADIUM; (B) TITANIUM; AND (C) ONE OR BOTH METALS OF THE GROUP MOLYBDENUM AND TUNGSTEN. A MINOR PORTION OF THE NITROGEN MAY BE REPLACED BY OXYGEN OR BORON. NITRIDED MATERIALS PREPARED FROM HOMOGENEOUS ALLOYS ARE ALSO INCLUDED. THE MATERIALS ARE CHARACTERIZED BY EXCELLENT WEAR AND ABRASION RESISTANCE.

公开(公告)号：US3764404A

公开(公告)日：1973-10-09

申请号：US3764404D

申请日：1972-03-20

Applicant: SURFACE TECHNOLOGY CORP

Inventor： VAN THYNE R ,  RAUSCH J

IPC: B23B27/14 ,  C22C27/00 ,  C23C8/24 ,  C23C11/14

CPC classification number: C23C8/24 ,  B23B27/148 ,  C22C27/00

Abstract: GRADED NITRIDED ARTICLES, SURFACE MODIFIED IN ALLOY COMPOSITION WHEREIN THE SURFACE ZONE CONSISTS OF NITRIDED ALLOYS CONSISTING ESSENTIALLY OF (A) ONE OR MORE METALS OF THE GROUP COLUMBIUM, TANTALUM, AND VANADIUM; (B) ZIRCONIUM AND ZIRCONIUM-TITANIUM MIXTURES, AND (C) ONE OR BOTH METALS OF THE GROUP MOLYBDENUM AND TUNGSTEN. A MINOR PORTION OF THE NITROGEN MAY BE REPLACED BY OXYGEN OR BORON. NITRIDED MATERIALS PREPARED FROM HOMOGENEOUS ALLOYS ARE ALSO INCLUDED. THE MATERIALS ARE CHARACTERIZED BY EXCELLENT WEAR AND ABRASION RESISTANCE.

公开(公告)号：US3713906A

公开(公告)日：1973-01-30

申请号：US3713906D

申请日：1970-03-04

Applicant: SURFACE TECHNOLOGY CORP

Inventor： VAN THYNE R ,  RAUSCH J

IPC: C22C27/02 ,  C23C8/24 ,  C22C27/00 ,  C23C11/14

CPC classification number: C22C27/02 ,  C23C8/24 ,  Y10S428/932 ,  Y10T428/12458

Abstract: A NOVEL GROUP OF NITRIDED ALLOYS HAVING EXCELLENT WEAR AND ABRASION RESISTANCE CONTAINING AS THEIR MAJOR CONSTITUENT ONE METAL OF THE GROUP COLUMUBIUM, TANTALUM AND VANADIUM ALLOYED WITH TITANIUM AND/OR ZIRCONIUM. SUCH ALLOYS ARE FABRICABLE TO SHAPE AND ARE THEN NITRIDED TO PRODUCE HIGH SURFACE HARDNESS THEREON. THE NITRIDED ALLOYS HAVING UTILITY AS CUTTING TOOL MATERIALS AND OTHER AREAS OF USE WHERE EXCELLENT WEAR AND ABRASION RESISTANCE IS DESIRED.

公开(公告)号：US3677832A

公开(公告)日：1972-07-18

申请号：US3677832D

申请日：1970-03-04

Applicant: SURFACE TECHNOLOGY CORP

Inventor： THYNE RAY J VAN ,  RAUSCH JOHN J

IPC: C22F1/18 ,  C23C8/24 ,  C22C27/00 ,  C23C11/14

CPC classification number: C22F1/183 ,  C23C8/24 ,  Y10S428/932 ,  Y10T428/12458

Abstract: A NOVEL GROUP OF NITRIDED ALLOYS HAVING EXCELLENT WEAR AND ABRASION RESISTANCE AND UTILITY AS CUTTING TOOL MATERIALS CONTAINING (A) TITANIUM, (B) ONE OR MORE METALS OR THE GROUP VANADIUM, COLUMBIUM, OR TANTALUM, AND (C) MOLYBDNUM OR TUNGSTEN. THE ALLOYS CAN BE READILY FABRICATED TO SHAPE AND THEN HARDENED BY NITRIDING TO PRODUCE HIGH SURFACE HARDNESS.

公开(公告)号：US3549427A

公开(公告)日：1970-12-22

申请号：US3549427D

申请日：1968-08-27

Applicant: SURFACE TECHNOLOGY CORP

Inventor： RAUSCH JOHN J ,  THYNE RAY J VAN

IPC: B23B27/14 ,  C22C27/00 ,  C23C11/14 ,  C23C9/00

CPC classification number: B23B27/148 ,  C22C27/00

公开(公告)号：US3468119A

公开(公告)日：1969-09-23

申请号：US3468119D

申请日：1967-05-31

Applicant: TAKEO KAGITANI

Inventor： KURATOMI TATSUO

IPC: D07B1/06 ,  C23C11/10 ,  C23C11/14

CPC classification number: D07B1/0693 ,  D07B1/147 ,  D07B2201/2023 ,  D07B2201/204 ,  D07B2201/2041 ,  D07B2205/306 ,  D07B2801/10 ,  D07B2801/18

公开(公告)号：US4346123A

公开(公告)日：1982-08-24

申请号：US174610

申请日：1980-08-01

Applicant: Helmut Kaufmann

Inventor： Helmut Kaufmann

IPC: C23C14/06 ,  C23C14/00 ,  C23C14/24 ,  C23C11/14

CPC classification number: C23C14/0021

Abstract: A method of depositing hard, wear-resistant coatings on workpieces and utility articles by evaporating a metal such as titanium in a reactive atmosphere. To make the coating hard as far as possible, wear resistant, and less susceptible to oxidation, the deposition is effected in an atmosphere containing nitrogen, oxygen and carbon, with the atomic number proportion of O to C ranging between 0.5 and 1.5. An evaporation by means of a low voltage arc discharge and the use of CO as the residual gas atmosphere are particularly advisable.

Abstract translation: 通过在反应性气氛中蒸发诸如钛的金属，在工件和实用物品上沉积硬质耐磨涂层的方法。 为了尽可能地使涂层变硬，耐磨损且不易氧化，沉积是在含有氮，氧和碳的气氛中进行的，O至C的原子序数比例在0.5和1.5之间。 通过低压电弧放电的蒸发和使用CO作为残留气体气氛是特别可取的。