Chain for a work implement, method for producing a stud for a chain and method for producing a driving member for a chain

A chain for a work implement has lateral connecting members connected to central driving members via studs. The stud has two lateral portions spaced apart from one another by a collar. A driving member is mounted pivotably on the collar. At the collar the stud has a surface layer harder than the bas...

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Bibliographische Detailangaben
Hauptverfasser:	Oliver Gerstenberger, Matthias Schulz, Nina Regnet, Jochen Buchholtz, Thomas Lux, Norbert Apfel
Format:	Patent
Sprache:	eng
Schlagworte:	BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVINGPURPOSES BLASTING CHAINS COMPONENTS OR ACCESSORIES THEREFOR ENGINEERING ELEMENTS AND UNITS FITTINGS PREDOMINANTLY USED THEREFOR GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS MECHANICAL ENGINEERING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL NAILING OR STAPLING MACHINES IN GENERAL PERFORMING OPERATIONS PUNCHING METAL SAWS FOR WOOD OR SIMILAR MATERIAL THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS WORKING CEMENT, CLAY, OR STONE WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL WORKING STONE OR STONE-LIKE MATERIALS
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Beschreibung
Zusammenfassung:	A chain for a work implement has lateral connecting members connected to central driving members via studs. The stud has two lateral portions spaced apart from one another by a collar. A driving member is mounted pivotably on the collar. At the collar the stud has a surface layer harder than the base material. For a high chain service life, the stud has a diffusion layer above a surface layer above the base material. To produce the stud, the stud is provided with a diffusion layer at least at the collar, and a surface region of the collar is hardened, such that a surface layer is formed between the diffusion layer and the base material of the stud. For a method for producing a driving member, the driving member is provided with a diffusion layer at least at a circumferential surface of a hole and the driving member is hardened.