CH505312A - Method of preparing a metal assembly of friction machines - Google Patents

Method of preparing a metal assembly of friction machines

Info

Publication number
CH505312A
CH505312A CH1571065A CH1571065A CH505312A CH 505312 A CH505312 A CH 505312A CH 1571065 A CH1571065 A CH 1571065A CH 1571065 A CH1571065 A CH 1571065A CH 505312 A CH505312 A CH 505312A
Authority
CH
Switzerland
Prior art keywords
friction
ridges
metal
preparing
carried out
Prior art date
Application number
CH1571065A
Other languages
French (fr)
Original Assignee
Berliet Automobiles
Hydromecanique & Frottement
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
Priority claimed from FR927197A external-priority patent/FR1371964A/en
Application filed by Berliet Automobiles, Hydromecanique & Frottement filed Critical Berliet Automobiles
Publication of CH505312A publication Critical patent/CH505312A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper
    • 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
    • C23C8/02—Pretreatment of the material to be coated
    • 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
    • C23C8/52—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 more than one element being applied in 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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F17/00—Multi-step processes for surface treatment of metallic material involving at least one process provided for in class C23 and at least one process covered by subclass C21D or C22F or class C25
    • 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
    • F16C33/121—Use of special materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Description

  

  
 



  Procédé de préparation d'un ensemble métallique de frottement de machines
 L'objet du brevet principal   No    432136 est un ensemble métallique de frottement de machines qui comprend un élément en acier glissant   sur    un élément en métal cuivreux ou tournant   l'un    dans l'autre.



   La zone de frottement   sul?erficielIe    de   l'élément    en acier est   nitrurée    et celle de l'élément en métal cuivreux convient du soufre et de l'azote introduits par un traitement thermique à bain de sel ou à milieu gazeux. Ce   baevet    s'étend en outre à un procédé de   prép,aration    de tels   ensembles      métallliques.    On peut effectuer ce procédé selon différentes méthodes de   nitruration    et d'introduction de soufre et d'azote ainsi qu'à des ensembles dont le métal cuivreux est un bronze.



   Le but de la présente invention est d'apporter un perfectionnement à ce procédé afin d'obtenir que la résistance à l'usure   dudit    ensemble soit sensiblement augmentée. Dans ce but   l'invention    propose un procédé de préparation d'un ensemble métallique de frottement de machines, conforme à la revendication Il du brevet principal, et   caractérisé    par le fait que la zone de frottement d'au moins   l'un    des deux éléments est soumise à un écrouissage par moletage ou martelage réalisé de telle façon qu'il   produise    des stries très inclinées sur la direction du   glissement    ou de la rotation.



   Dans un exemple du perfectionnement selon l'invention, une bague d'un diamètre intérieur de   40 mu    et d'une longueur de   50 nus,    réalisée en un alliage de cuivre   contenant    environ 88   O/o    de cuivre et 12    < )/o    d'étain, a été d'abord   moletée    intérieurement avec des stries inclinées de 600 environ sur la direction du mouvement   prévu.    profondes d'environ 0,1 mm et distantes d'environ 1,5 mm les unes des autres, puis sulfinuzée.

  L'arbre en acier non allié de catégorie XC 32 selon la norme française NF A o2001 a été moleté ou martelé de la même façon, puis traité dans un bain de sels nitrurant cyanure-cyanate à 5700 C, traitement du genre de ceux qui sont connus sous les désignations commerciales de     Ténifer   ou   Tufftride  .   



   L'arbre monté dans la bague avec un jeu de 0,1 mm
 a pu osciller dans   l'eau    sans apport de graisse pendant 300 heures sans usure appréciable. La fréquence des   oscillations    était de 1 hz, leur amplitude 1000, la charge de l'arbre dans la bague était d'environ   15000    N et le coefficient de frottement de 0,22.



   REVENDICATION



   Procédé de préparation d'un ensemble métallique de frottement de machines, selon la revendication Il du brevet principal, caractérisé par le fait que la zone de frottement d'au moins   l'un    des deux   éléments    est soumise à un   écrouissage    par moletage ou martelage réalisé de telle   façon      qu'li    produise des stries très inclinées sur la direction du glissement ou de la rotation.



   SOUS-REVENDICATIONS
 1. Procédé selon la revendication,   caractérisé    en ce que la profondeur des   stries    est d'environ 0,1 mm.



   2. Procédé selon la revendication et la   sous-revendi-    cation 1,   caractérisé    en ce que l'espacement des stries est d'environ 1,5 mm.



   3. Procédé selon la   revendication    et les sous-revendications 1 et 2, caractérisé en ce que l'inclinaison des stries par rapport à la   direction    du   glissement    ou de la rotation est d'environ 600.



   4. Procédé selon la revendication et les   sous-revendi-    cations précédentes, caractérisé en ce que l'écrouissage du métal   cuivreux    est effectué avant l'introduction de soufre et d'azote.



   5. Procédé selon la revendication et les sous-revendications précédentes, caractérisé en ce que l'écrouissage de l'élément en acier est effectué avant nitruration.

**ATTENTION** fin du champ DESC peut contenir debut de CLMS **.



   



  
 



  Method of preparing a metal assembly of friction machines
 The subject of main patent No. 432136 is a metal machine friction assembly which comprises a steel member sliding over a copper metal member or rotating within each other.



   The sulphide friction zone of the steel element is nitrided and that of the cuprous metal element is suitable for sulfur and nitrogen introduced by a heat treatment in a salt bath or in a gas medium. This baevet also extends to a method of preparing such metal assemblies. This process can be carried out according to different methods of nitriding and introducing sulfur and nitrogen as well as to assemblies in which the copper metal is a bronze.



   The aim of the present invention is to improve this process in order to obtain that the resistance to wear of said assembly is substantially increased. To this end, the invention proposes a process for preparing a metallic friction assembly for machines, in accordance with claim II of the main patent, and characterized in that the friction zone of at least one of the two elements is subjected to a work hardening by knurling or hammering carried out in such a way that it produces very inclined ridges on the direction of sliding or of rotation.



   In an example of the improvement according to the invention, a ring with an internal diameter of 40 mu and a length of 50 bare, made of a copper alloy containing approximately 88 O / o of copper and 12 <) / o d tin, was first internally knurled with ridges inclined about 600 in the direction of intended movement. about 0.1 mm deep and about 1.5 mm apart from each other, then sulfinuzée.

  The non-alloy steel shaft of category XC 32 according to the French standard NF A o2001 was knurled or hammered in the same way, then treated in a bath of cyanide-cyanate nitriding salts at 5700 C, treatment of the type of those which are known under the trade names of Tenifer or Tufftride.



   The shaft mounted in the ring with a clearance of 0.1 mm
 was able to oscillate in water without adding grease for 300 hours without appreciable wear. The frequency of the oscillations was 1 Hz, their amplitude 1000, the load of the shaft in the bushing was about 15000 N, and the coefficient of friction was 0.22.



   CLAIM



   Process for preparing a metallic friction assembly for machines, according to claim II of the main patent, characterized in that the friction zone of at least one of the two elements is subjected to a work hardening by knurling or hammering carried out in such a way that it produces very inclined ridges on the direction of the sliding or of the rotation.



   SUB-CLAIMS
 1. Method according to claim, characterized in that the depth of the ridges is about 0.1 mm.



   2. Method according to claim and sub-claim 1, characterized in that the spacing of the ridges is approximately 1.5 mm.



   3. Method according to claim and sub-claims 1 and 2, characterized in that the inclination of the ridges with respect to the direction of sliding or of rotation is approximately 600.



   4. Method according to claim and the preceding sub-claims, characterized in that the work hardening of the cuprous metal is carried out before the introduction of sulfur and nitrogen.



   5. Method according to claim and the preceding sub-claims, characterized in that the hardening of the steel element is carried out before nitriding.

** ATTENTION ** end of DESC field can contain start of CLMS **.

Claims (1)

**ATTENTION** debut du champ CLMS peut contenir fin de DESC **. ** ATTENTION ** start of field CLMS can contain end of DESC **. Procédé de préparation d'un ensemble métallique de frottement de machines L'objet du brevet principal No 432136 est un ensemble métallique de frottement de machines qui comprend un élément en acier glissant sur un élément en métal cuivreux ou tournant l'un dans l'autre. Method of preparing a metal assembly of friction machines The subject of main patent No. 432136 is a metal machine friction assembly which comprises a steel member sliding over a copper metal member or rotating within each other. La zone de frottement sul?erficielIe de l'élément en acier est nitrurée et celle de l'élément en métal cuivreux convient du soufre et de l'azote introduits par un traitement thermique à bain de sel ou à milieu gazeux. Ce baevet s'étend en outre à un procédé de prép,aration de tels ensembles métallliques. On peut effectuer ce procédé selon différentes méthodes de nitruration et d'introduction de soufre et d'azote ainsi qu'à des ensembles dont le métal cuivreux est un bronze. The sulphide friction zone of the steel element is nitrided and that of the cuprous metal element is suitable for sulfur and nitrogen introduced by a heat treatment in a salt bath or in a gas medium. This baevet also extends to a method of preparing such metal assemblies. This process can be carried out according to different methods of nitriding and introducing sulfur and nitrogen as well as to assemblies in which the copper metal is a bronze. Le but de la présente invention est d'apporter un perfectionnement à ce procédé afin d'obtenir que la résistance à l'usure dudit ensemble soit sensiblement augmentée. Dans ce but l'invention propose un procédé de préparation d'un ensemble métallique de frottement de machines, conforme à la revendication Il du brevet principal, et caractérisé par le fait que la zone de frottement d'au moins l'un des deux éléments est soumise à un écrouissage par moletage ou martelage réalisé de telle façon qu'il produise des stries très inclinées sur la direction du glissement ou de la rotation. The aim of the present invention is to improve this process in order to obtain that the resistance to wear of said assembly is substantially increased. To this end, the invention proposes a process for preparing a metallic friction assembly for machines, in accordance with claim II of the main patent, and characterized in that the friction zone of at least one of the two elements is subjected to a work hardening by knurling or hammering carried out in such a way that it produces very inclined ridges on the direction of sliding or of rotation. Dans un exemple du perfectionnement selon l'invention, une bague d'un diamètre intérieur de 40 mu et d'une longueur de 50 nus, réalisée en un alliage de cuivre contenant environ 88 O/o de cuivre et 12 < )/o d'étain, a été d'abord moletée intérieurement avec des stries inclinées de 600 environ sur la direction du mouvement prévu. profondes d'environ 0,1 mm et distantes d'environ 1,5 mm les unes des autres, puis sulfinuzée. In an example of the improvement according to the invention, a ring with an internal diameter of 40 mu and a length of 50 bare, made of a copper alloy containing approximately 88 O / o of copper and 12 <) / o d tin, was first internally knurled with ridges inclined about 600 in the direction of intended movement. about 0.1 mm deep and about 1.5 mm apart from each other, then sulfinuzée. L'arbre en acier non allié de catégorie XC 32 selon la norme française NF A o2001 a été moleté ou martelé de la même façon, puis traité dans un bain de sels nitrurant cyanure-cyanate à 5700 C, traitement du genre de ceux qui sont connus sous les désignations commerciales de Ténifer ou Tufftride . The non-alloy steel shaft of category XC 32 according to the French standard NF A o2001 was knurled or hammered in the same way, then treated in a bath of cyanide-cyanate nitriding salts at 5700 C, treatment of the type of those which are known under the trade names of Tenifer or Tufftride. L'arbre monté dans la bague avec un jeu de 0,1 mm a pu osciller dans l'eau sans apport de graisse pendant 300 heures sans usure appréciable. La fréquence des oscillations était de 1 hz, leur amplitude 1000, la charge de l'arbre dans la bague était d'environ 15000 N et le coefficient de frottement de 0,22. The shaft mounted in the ring with a clearance of 0.1 mm was able to oscillate in water without adding grease for 300 hours without appreciable wear. The frequency of the oscillations was 1 Hz, their amplitude 1000, the load of the shaft in the bushing was about 15000 N, and the coefficient of friction was 0.22. REVENDICATION CLAIM Procédé de préparation d'un ensemble métallique de frottement de machines, selon la revendication Il du brevet principal, caractérisé par le fait que la zone de frottement d'au moins l'un des deux éléments est soumise à un écrouissage par moletage ou martelage réalisé de telle façon qu'li produise des stries très inclinées sur la direction du glissement ou de la rotation. Process for preparing a metallic friction assembly for machines, according to claim II of the main patent, characterized in that the friction zone of at least one of the two elements is subjected to a work hardening by knurling or hammering carried out in such a way that it produces very inclined ridges on the direction of the sliding or of the rotation. SOUS-REVENDICATIONS 1. Procédé selon la revendication, caractérisé en ce que la profondeur des stries est d'environ 0,1 mm. SUB-CLAIMS 1. Method according to claim, characterized in that the depth of the ridges is about 0.1 mm. 2. Procédé selon la revendication et la sous-revendi- cation 1, caractérisé en ce que l'espacement des stries est d'environ 1,5 mm. 2. Method according to claim and sub-claim 1, characterized in that the spacing of the ridges is approximately 1.5 mm. 3. Procédé selon la revendication et les sous-revendications 1 et 2, caractérisé en ce que l'inclinaison des stries par rapport à la direction du glissement ou de la rotation est d'environ 600. 3. Method according to claim and sub-claims 1 and 2, characterized in that the inclination of the ridges with respect to the direction of sliding or of rotation is approximately 600. 4. Procédé selon la revendication et les sous-revendi- cations précédentes, caractérisé en ce que l'écrouissage du métal cuivreux est effectué avant l'introduction de soufre et d'azote. 4. Method according to claim and the preceding sub-claims, characterized in that the work hardening of the cuprous metal is carried out before the introduction of sulfur and nitrogen. 5. Procédé selon la revendication et les sous-revendications précédentes, caractérisé en ce que l'écrouissage de l'élément en acier est effectué avant nitruration. 5. Method according to claim and the preceding sub-claims, characterized in that the hardening of the steel element is carried out before nitriding.
CH1571065A 1963-03-07 1965-11-15 Method of preparing a metal assembly of friction machines CH505312A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR927197A FR1371964A (en) 1963-03-07 1963-03-07 friction elements subjected to corrosion
CH275864A CH432136A (en) 1963-03-07 1964-03-04 Metallic friction assembly and method of manufacturing this assembly
FR12868A FR87697E (en) 1963-03-07 1965-04-12 Friction elements subject to corrosion

Publications (1)

Publication Number Publication Date
CH505312A true CH505312A (en) 1971-03-31

Family

ID=27173909

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1571065A CH505312A (en) 1963-03-07 1965-11-15 Method of preparing a metal assembly of friction machines

Country Status (1)

Country Link
CH (1) CH505312A (en)

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