TW259815B - - Google Patents

Info

Publication number
TW259815B
TW259815B TW083106467A TW83106467A TW259815B TW 259815 B TW259815 B TW 259815B TW 083106467 A TW083106467 A TW 083106467A TW 83106467 A TW83106467 A TW 83106467A TW 259815 B TW259815 B TW 259815B
Authority
TW
Taiwan
Prior art keywords
salts
oxygenated
nitrates
hydroxides
bath
Prior art date
Application number
TW083106467A
Other languages
Chinese (zh)
Original Assignee
Ct Stephanois De Rech S Mechaniqueshydromecanique Et
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ct Stephanois De Rech S Mechaniqueshydromecanique Et filed Critical Ct Stephanois De Rech S Mechaniqueshydromecanique Et
Application granted granted Critical
Publication of TW259815B publication Critical patent/TW259815B/zh

Links

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
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/70—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using melts
    • C23C22/72—Treatment of iron or alloys based thereon
    • 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
    • C23C8/40—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 liquids, e.g. salt baths, liquid suspensions
    • C23C8/42—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 liquids, e.g. salt baths, liquid suspensions only one element being applied
    • C23C8/48—Nitriding
    • C23C8/50—Nitriding of ferrous surfaces
    • 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

Abstract

The process consists in immersing the articles which have previously undergone a thermochemical diffusion of either nitriding or sulphonitriding or carbonitriding type, in a bath of molten salts made up of alkali metal carbonates, nitrates, hydroxides and their oxygenated salts, the relative anionic weight quantities of carbonates, nitrates and hydroxides, expressed for sodium salts and corresponding to the active, that is to say liquid, phase of the bath being the following: 11 < CO<2-> < 23 19 < NO3<-> < 37 6 < OH<-> < 19 while the weight quantity of oxygenated salts of alkali metals, expressed as Cr2O7<2-> equivalent, is the following: 0.05 < oxygenated anions < 0.5. This process makes it possible to guarantee a high degree of reproducibility of the results, whatever the type of articles treated.
TW083106467A 1993-08-10 1994-07-15 TW259815B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9309814A FR2708941B1 (en) 1993-08-10 1993-08-10 Method for improving the resistance to wear and corrosion of ferrous metal parts.

Publications (1)

Publication Number Publication Date
TW259815B true TW259815B (en) 1995-10-11

Family

ID=9450082

Family Applications (1)

Application Number Title Priority Date Filing Date
TW083106467A TW259815B (en) 1993-08-10 1994-07-15

Country Status (13)

Country Link
EP (1) EP0638661B1 (en)
JP (1) JP3083453B2 (en)
KR (1) KR100273924B1 (en)
CN (1) CN1054891C (en)
AT (1) ATE148178T1 (en)
BR (1) BR9403101A (en)
CA (1) CA2129162C (en)
DE (1) DE69401551T2 (en)
ES (1) ES2097012T3 (en)
FR (1) FR2708941B1 (en)
MY (1) MY111901A (en)
PL (1) PL177228B1 (en)
TW (1) TW259815B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2731232B1 (en) * 1995-03-01 1997-05-16 Stephanois Rech PROCESS FOR TREATING FERROUS SURFACES SUBJECT TO HIGH FRICTION STRESS
JP4487340B2 (en) 1999-07-21 2010-06-23 日本精工株式会社 Method for manufacturing rolling bearing cage
TW557330B (en) 2000-11-29 2003-10-11 Parker Netsushori Kogyo Kk Improved salt bath nitrogenating method for corrosion-resistant iron material and iron units
DE10124933A1 (en) * 2001-05-21 2002-11-28 Endress & Hauser Gmbh & Co Kg Device used for process measurement and control technology comprises a lid made from a metallic material, and a metallic housing of a measuring apparatus
EP2757423B1 (en) * 2013-01-17 2018-07-11 Omega SA Part for clockwork
CN103451595B (en) * 2013-09-02 2015-09-23 中国科学院金属研究所 Mg alloy surface fused salt oxygen carbon sulphur oozes Preparing Anti-corrosion Ceramic Coating and Synthesis and applications altogether
CN113897579A (en) * 2021-09-30 2022-01-07 成都工具研究所有限公司 Low-temperature QPQ treatment process for 316L stainless steel workpiece

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2639244A (en) * 1950-07-15 1953-05-19 Remington Arms Co Inc Metal finishing method
DE2934113C2 (en) * 1979-08-23 1985-05-09 Degussa Ag, 6000 Frankfurt Process for increasing the corrosion resistance of nitrided components made of ferrous materials
FR2525637B1 (en) * 1982-04-23 1986-05-09 Stephanois Rech Mec PROCESS FOR TREATING FERROUS METAL PARTS IN OXIDIZING SALT BATTERS TO IMPROVE CORROSION RESISTANCE, PARTS CONTAINING SULFUR
JPH0234793A (en) * 1988-07-26 1990-02-05 Kobe Steel Ltd Production of high-strength hot-rolled steel sheet to be worked having excellent scale adhesion
FR2672059B1 (en) * 1991-01-30 1995-04-28 Stephanois Rech Mec PROCESS FOR PROVIDING FERROUS METAL PARTS, NITRIDATED THEN OXIDIZED, EXCELLENT CORROSION RESISTANCE WHILE MAINTAINING THE ACQUIRED FRICTION PROPERTIES.

Also Published As

Publication number Publication date
JP3083453B2 (en) 2000-09-04
CN1054891C (en) 2000-07-26
CA2129162C (en) 2000-12-12
DE69401551T2 (en) 1997-07-03
KR100273924B1 (en) 2000-12-15
JPH0776766A (en) 1995-03-20
CN1101684A (en) 1995-04-19
MY111901A (en) 2001-02-28
PL177228B1 (en) 1999-10-29
EP0638661B1 (en) 1997-01-22
KR950006020A (en) 1995-03-20
CA2129162A1 (en) 1995-02-11
PL304595A1 (en) 1995-02-20
ATE148178T1 (en) 1997-02-15
ES2097012T3 (en) 1997-03-16
FR2708941A1 (en) 1995-02-17
BR9403101A (en) 1995-04-11
FR2708941B1 (en) 1995-10-27
DE69401551D1 (en) 1997-03-06
EP0638661A1 (en) 1995-02-15

Similar Documents

Publication Publication Date Title
JPS5754898A (en) Applying method for removing scale on surface
AU586635B2 (en) Process for controlling snout zinc vapor in a hot dip zinc based coating on a ferrous base metal strip
AU582315B2 (en) Composition and method for metal surface refinement
ES2125796A1 (en) Process and plant for pickling materials made of steel, in particular stainless steel
TW259815B (en)
YU61887A (en) Process for coating chromium steel with aluminium by immersing the article into aluminium solution
IN171977B (en)
ZA914333B (en) Process permitting the modification of the chemical composition of the inner face of a barrel,and machine implementing such a process
GB9316310D0 (en) Chemical process
CA2096116A1 (en) Composition and method for treating tin plated steel surface
KR890013206A (en) Continuous coating method of fibrous steel substrate by immersing the fibrous steel substrate in molten coating metal bath
GR3019424T3 (en) Process for the manufacture of soft gelatin capsules by a drip-feed method.
Polti Process for improving the wear and corrosion resistance of ferrous metal parts
IN170774B (en)
JPS57201583A (en) Eliminating method of oxygen contained in water
Fidler XPS Studies of the Surface Oxidation of the Intermetallic Compound HfCo
JPS56163242A (en) Special strip steel
SU775172A1 (en) Composition for diffusion chrome-plating of martensite-aged steel parts
GB999850A (en) Improvements relating to coating ferrous metal articles
DE3463527D1 (en) Process for the surface treatment of metals
JPS5791795A (en) Reduction of nitrate form nitrogen contained in waste water
Nierlich et al. Investigations of Kinetics of Decomposition of Retained Austenite Related to Different Heat Treatment Variants of a Steel Containing 1% Carbon
JPS57104621A (en) Steel with superior machinability and its manufacture
JPS5485128A (en) Heat treating method for one-side zinc-plated steel sheet
CA2031106A1 (en) Sulfur treatment of magnesium-contaminated fe-cr-al alloy for improved whisker growth

Legal Events

Date Code Title Description
MK4A Expiration of patent term of an invention patent