GB847800A - Method for forming metal sulfide coatings - Google Patents
Method for forming metal sulfide coatingsInfo
- Publication number
- GB847800A GB847800A GB34021/56D GB3402156D GB847800A GB 847800 A GB847800 A GB 847800A GB 34021/56 D GB34021/56 D GB 34021/56D GB 3402156 D GB3402156 D GB 3402156D GB 847800 A GB847800 A GB 847800A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- water
- organic
- bearing
- molybdenum
- 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
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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/14—Special methods of manufacture; Running-in
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2220/00—Shaping
- F16C2220/20—Shaping by sintering pulverised material, e.g. powder metallurgy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2220/00—Shaping
- F16C2220/60—Shaping by removing material, e.g. machining
- F16C2220/70—Shaping by removing material, e.g. machining by grinding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2223/00—Surface treatments; Hardening; Coating
- F16C2223/02—Mechanical treatment, e.g. finishing
- F16C2223/08—Mechanical treatment, e.g. finishing shot-peening, blasting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2223/00—Surface treatments; Hardening; Coating
- F16C2223/30—Coating surfaces
- F16C2223/40—Coating surfaces by dipping in molten material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2223/00—Surface treatments; Hardening; Coating
- F16C2223/30—Coating surfaces
- F16C2223/42—Coating surfaces by spraying the coating material, e.g. plasma spraying
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
Organic tetrathiomolybdates and tetrathiotungstates of formula R2MS4 where R is an organic ammonium radical, the free base of which is volatile below 300 DEG C. at atmospheric pressure, and M is molybdenum or tungsten, may be prepared by introducing hydrogen sulphide into a solution of molybdic or tungstic acid in the presence of an excess of the base or by double decomposition of water-soluble thiomolybdates or thiotungstates with water soluble salts, e.g. hydro-chlorides, of the bases. The products are soluble in water or depending on the size of the organic radicals, in lower alcohols, glycols, amines, amino-alcohols, ethers or polyoxyethylene compounds; the presence of a small amount of the base corresponding to the tetrathiomolybdate or tungstate increases solubility and improves stability of the solution. Specified amines are mono-, di- and tri-methylamine, the various ethylamines, morpholine, piperazine, diethylene triamine and octylamine.ALSO:Molybdenum or tungsten disulphide coatings are formed on a bearing surface by applying to the surface and thermally decomposing thereon a compound R2MS4 where R is NH4 or an organic ammonium radical, the free base of which is volatile below 300 DEG C. and M is molybdenum or tungsten. The compound is preferably applied, e.g. by spraying, dipping or brushing, as a solution in water, lower alcohols, glycols, amines, amino alcohols, ethers or polyoxyethylene compounds, to which if desired there may be added a small amount of a free base corresponding to or similar to that of the compound, or of a volatile wetting agent. For best penetration the surface is treated with a warm saturated solution, after or whilst subjecting to a vacuum to evacuate crevices, or whilst subjecting to ultrasonic vibration. The surface may if desired be etched or sand blasted before applying the solution. The thermal decomposition may be carried out in a single step to evaporate the solvent, decompose to form a trisulphide (this may take place at 250-300 DEG C. at 1 atmosphere) and decompose the trisulphide to a disulphide (this may take place at 450-480 DEG C. at 1 atmosphere or as low as 340 DEG C. at 1 mm. Hg.). These changes may alternatively be carried out separately in two or three stages. Specified organic basis are monomethylamine, dimethylamine, trimethylamine, ethanolamines, morpholine, piperazine, diethylenetriamine and octylamine. Examples refer to (1) impregnating a sintered iron bearing with a hot saturated solution of ammonium tetrathiomolybdate in ethyl alcohol containing monomethylamine after subjecting the sintered bearing to a vacuum, repeating the procedure, drying and heating the bearing in a nitrogen atmosphere at 450 DEG C. to form a molybdenium disulphide coating; (2) coating a furnace chain heated to 350 DEG C. by passing it through a bath containing a solution of (NH4)2WS4 in water containing triethanolamine and a polyglycol; a lubricating WS2 layer is formed; (3) treating the sliding surfaces of a stoneware sulphuric acid pump with an ammoniacal aqueous monomethylammonium tetrathiomolybdate solution and then heating at 480 DEG C. in a stream of a nitrogen to form a self-lubricating p acid-resistant MoS2 film.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US847800XA | 1956-01-04 | 1956-01-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB847800A true GB847800A (en) | 1960-09-14 |
Family
ID=22187155
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB34021/56D Expired GB847800A (en) | 1956-01-04 | 1956-11-07 | Method for forming metal sulfide coatings |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB847800A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0777058A1 (en) * | 1995-11-30 | 1997-06-04 | Toyota Jidosha Kabushiki Kaisha | Sliding material and methods of producing same |
WO2008148679A2 (en) | 2007-06-07 | 2008-12-11 | Siemens Aktiengesellschaft | Method for creating a dry lubricant layer |
US7918274B2 (en) | 2006-02-08 | 2011-04-05 | Thomas John Oliver Thornton | Downhole tools |
US8545930B2 (en) | 2007-12-07 | 2013-10-01 | Applied Nano Surfaces Sweden Ab | Manufacturing of low-friction elements |
-
1956
- 1956-11-07 GB GB34021/56D patent/GB847800A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0777058A1 (en) * | 1995-11-30 | 1997-06-04 | Toyota Jidosha Kabushiki Kaisha | Sliding material and methods of producing same |
US5879816A (en) * | 1995-11-30 | 1999-03-09 | Nihon Parkerizing Co., Ltd. | Metallic sliding material |
US7918274B2 (en) | 2006-02-08 | 2011-04-05 | Thomas John Oliver Thornton | Downhole tools |
WO2008148679A2 (en) | 2007-06-07 | 2008-12-11 | Siemens Aktiengesellschaft | Method for creating a dry lubricant layer |
WO2008148679A3 (en) * | 2007-06-07 | 2009-10-22 | Siemens Aktiengesellschaft | Method for creating a dry lubricant layer |
US8460750B2 (en) | 2007-06-07 | 2013-06-11 | Siemens Aktiengesellschaft | Method for creating a dry lubricant layer |
US8545930B2 (en) | 2007-12-07 | 2013-10-01 | Applied Nano Surfaces Sweden Ab | Manufacturing of low-friction elements |
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