DE1012946B - Surface treatment of friction disks - Google Patents
Surface treatment of friction disksInfo
- Publication number
- DE1012946B DE1012946B DEZ5520A DEZ0005520A DE1012946B DE 1012946 B DE1012946 B DE 1012946B DE Z5520 A DEZ5520 A DE Z5520A DE Z0005520 A DEZ0005520 A DE Z0005520A DE 1012946 B DE1012946 B DE 1012946B
- Authority
- DE
- Germany
- Prior art keywords
- surface treatment
- friction disks
- friction
- lamellae
- lamellas
- 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.)
- Pending
Links
- 238000004381 surface treatment Methods 0.000 title claims description 4
- 241000446313 Lamella Species 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 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 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 235000010333 potassium nitrate Nutrition 0.000 claims description 2
- 239000004323 potassium nitrate Substances 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 235000010344 sodium nitrate Nutrition 0.000 claims description 2
- 239000004317 sodium nitrate Substances 0.000 claims description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Inorganic materials [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 2
- 238000010002 mechanical finishing Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 2
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- 238000005256 carbonitriding Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011282 treatment 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Operated Clutches (AREA)
Description
Oberflächenbehandlung von Reibscheiben Lamellen aus gehärtetem Stahl werden als Kupplungselemente vorzugsweise ihres geringen Verschleißes und ihrer billigen Herstellung verwendet.Surface treatment of friction disks lamellas made of hardened steel as coupling elements are preferably their low wear and tear cheap manufacture used.
Ein Nachteil der Stahllamellen mit blanker, metallischer Reibfläche ist ihr über die Gebrauchszeit veränderlicher Reibwert, welcher während der Einlaufzeit der Lamellen um bis zu 50°/o geringer werden kann. Da die Lamellenkupplungen in vielen Fällen ein bestimmtes, begrenztes Drehmoment übertragen sollen, ist dieser Abfall des Reibwertes unerwünsc:ht.A disadvantage of steel plates with a bare, metallic friction surface is its coefficient of friction, which changes over the period of use, which occurs during the running-in period the lamellas can be reduced by up to 50%. Since the multi-plate clutches in in many cases a specific, limited torque is to be transmitted, is this Unwanted drop in the coefficient of friction.
Durch einen vorausgehenden Einlaufvorgang kann der Reibwert nicht genügend schnell auf den Betriebswert abgesenkt werden, da hierzu mehrere tausend Vollastschaltungen notwendig sind.The coefficient of friction cannot be achieved through a preceding running-in process be lowered sufficiently quickly to the operating value, since this involves several thousand Full load circuits are necessary.
Auch durch Läppen der Berührungsflächen kann nur eine Annäherung des Reibwertes an den des Gebrauchszustandes erreicht werden. Oberfläche@nbehandlungendurch Phosphatieren, Dampfanlassen u. ä. führen ebenfalls nicht zu einer befriedigenden Lösung, ganz abgesehen davon, d aß diese Behandlungen mehr oder weniger die Herstellungskosten der Lamelle erhöhen.Even by lapping the contact surfaces, only an approximation of the Coefficient of friction can be achieved at that of the state of use. Surface treatment by Phosphating, steaming and the like also do not lead to a satisfactory one Solution, quite apart from that, these treatments had more or less the manufacturing cost increase the slat.
Nach der Erfindung werden Reibscheiben:, insbesondere Kupplungslamellen aus Stahl, insbesondere unter Anwendung von Stickstoff abgebenden Härtemitteln erst nach dem Fertigbearbeiten der Lamellemoberfläche gehärtet. Der Reibwert vom so gehärteten neuen Stahllamellen ist demjenigen von gut eingelaufenen Lamellen angeglichen und erfährt während des Betriebes keine nennenswerten Änderungen mehr. Besonders geeignet für den vorliegenden Zweck sind das Härten in einem Cyanidbad und das Karbonitrierverfahren.According to the invention, friction disks, in particular clutch disks made of steel, especially with the use of hardening agents that release nitrogen hardened after finishing the lamella surface. The coefficient of friction of the hardened one new steel lamellas is matched to that of well-worn lamellas and no longer experiences any noteworthy changes during operation. Particularly suitable for the present purpose hardening in a cyanide bath and the carbonitriding process are used.
In Ergänzung dieser chemischen und härtemäßigen Beeinflussungen der Randzone,der Lamelle soll nach der Erfindung ferner das Abschrecken der Lamellen in einem Salzbad, beispielsweise in einer Schmelze von Natrium- und Kalisalpeter, vorgenommen werden. Hierdurch wird an der Oberfläche der Lamellen eine Oxydschieht erzeugt, die ohne Kostenaufwand eine zusätzliche Erhöhung .der Belastbarkeit der Lamellen ergibt.In addition to these chemical and hardness-related influences on the According to the invention, the edge zone of the lamella is also intended to quench the lamellae in a salt bath, for example in a melt of sodium and potassium nitrate, be made. This creates an oxide layer on the surface of the lamellae generated, which at no cost an additional increase in the resilience of the Lamellas results.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEZ5520A DE1012946B (en) | 1956-04-28 | 1956-04-28 | Surface treatment of friction disks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEZ5520A DE1012946B (en) | 1956-04-28 | 1956-04-28 | Surface treatment of friction disks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1012946B true DE1012946B (en) | 1957-08-01 |
Family
ID=7619478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEZ5520A Pending DE1012946B (en) | 1956-04-28 | 1956-04-28 | Surface treatment of friction disks |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1012946B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2460896A1 (en) * | 2010-12-03 | 2012-06-06 | Miba Frictec GmbH | Method for producing a friction element |
| DE102018211063A1 (en) * | 2018-07-04 | 2020-01-09 | Magna Pt B.V. & Co. Kg | Manufacturing process for a steel plate of a plate clutch |
-
1956
- 1956-04-28 DE DEZ5520A patent/DE1012946B/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2460896A1 (en) * | 2010-12-03 | 2012-06-06 | Miba Frictec GmbH | Method for producing a friction element |
| AT510787A1 (en) * | 2010-12-03 | 2012-06-15 | Miba Frictec Gmbh | METHOD FOR MANUFACTURING A REEL ELEMENT |
| US8734603B2 (en) | 2010-12-03 | 2014-05-27 | Miba Frictec Gmbh | Method for producing a friction element |
| US9410583B2 (en) | 2010-12-03 | 2016-08-09 | Miba Frictec Gmbh | Method for producing a friction element |
| DE102018211063A1 (en) * | 2018-07-04 | 2020-01-09 | Magna Pt B.V. & Co. Kg | Manufacturing process for a steel plate of a plate clutch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2921352A1 (en) | ELASTIC RING FOR FASTENING GROOVED OR TOOTHED COMPONENTS | |
| DE1223200B (en) | Disc coupling for shafts with a metallic washer | |
| DE112011103966T5 (en) | Method for improving the fatigue strength of a cast iron material | |
| DE2002345A1 (en) | Process for the production of a friction element for continuously variable friction gears | |
| DE2354565A1 (en) | BOLTS FOR A STEEL CHAIN | |
| DE68914601T2 (en) | Gears with great strength. | |
| DE1012946B (en) | Surface treatment of friction disks | |
| DE2264275A1 (en) | Frictional contact set - comprising one metal member and one plastic bonded member with short-life, running-in surface layer | |
| DE102017100248A1 (en) | transmission assembly | |
| DE68915719T2 (en) | Method of manufacturing bushings for caterpillar tractors. | |
| CH351992A (en) | Process for the surface treatment of friction disks, in particular clutch plates | |
| AT200599B (en) | Process for the production of hardened friction disks from structural steel, in particular clutch disks | |
| DE102008046911A1 (en) | Connecting device for providing fixed sliding connection between two elements, comprises upper surface, which has coefficient of friction, and is formed around fixed sliding connection to indefinite surface of one of two elements | |
| DE2450267A1 (en) | SPRING COMPONENT, SUCH AS A DISC SPRING IN PARTICULAR | |
| DE102016109884A1 (en) | Sliding element, clutch disc and manufacturing method therefor | |
| DE69302790T2 (en) | FRICTION CLUTCH | |
| WO2018086658A1 (en) | Method for producing a rolling bearing ring having an improved robustness against the formation of white etching cracks (wec) | |
| DE1103690B (en) | Disk springs for clutches, in particular for motor vehicle clutches, and process for their manufacture | |
| DE1160698B (en) | Friction disc for friction clutches, in particular for multi-plate clutches, and method for manufacturing the friction disc | |
| DE1000651B (en) | Piston ring | |
| DE899926C (en) | Circulating power transmission medium for clocks and similar fine mechanical devices | |
| DE1924458A1 (en) | Electromagnetic clutch | |
| DE681610C (en) | Electromagnetic clutch, especially for gearboxes in motor vehicles | |
| AT227039B (en) | ||
| DE1758208A1 (en) | Process for the heat treatment of steel |