公开(公告)号：US3818966A

公开(公告)日：1974-06-25

申请号：US25988772

申请日：1972-06-05

Applicant: TEXTRON INC

Inventor： BAUM C

IPC: B60C11/16 ,  B60C11/00

CPC classification number: B60C11/16

Abstract: A tire stud is formed by filling a tubular rivet, from its open end, with tungsten carbide grit of a relatively large particle size. After tamping and vibratory compacting of this grit the voids between the grit particles are filled with carbide grit of a substantially smaller particle size by vibratory techniques. The skeleton thus formed is filled with a molten matrixing metal and then cooled. The stud exhibits wear properties which approximate those of a rubber tire in which it embedded so that the end of the stud projects slightly beyond the tread surface of the tire during the life of the unit.

Abstract translation: 通过从其开口端填充管状铆钉来形成具有较大粒度的碳化钨砂粒而形成的轮胎螺栓。 在该砂粒的夯实和振动压实之后，通过振动技术将颗粒之间的空隙填充到具有基本较小粒度的碳化物砂粒。 由此形成的骨架填充有熔融的基体金属，然后冷却。 螺栓具有的磨损性能近似于嵌入其中的橡胶轮胎的磨损特性，使得螺栓的端部在单元的使用寿命期间略微超过轮胎的胎面表面。

公开(公告)号：US3827885A

公开(公告)日：1974-08-06

申请号：US36136073

申请日：1973-05-17

Applicant: TEXTRON INC

Inventor： BAUM C

IPC: B22F7/08 ,  B60C11/16 ,  B22F5/00

CPC classification number: B22F7/08 ,  B60C11/16 ,  Y10T29/4998 ,  Y10T152/10279

Abstract: A TIRE STUD AND THE METHOD OF MAKING SAME. THE TIRE STUD INCLUDES AN ELONGATED METAL BODY HAVING A HEAT AT ONE END AND A SHANK EXTENDING FROM THE HEAD WITH A CAVITY EXTENDING INTO THE SHANK TOWARD THE HEAD. IN MAKING THE COMPLETED STUD, THE BODY IS DISPOSED IN A BORE HAVING A SHANK RECEIVING PORTION AND A SMALLER PROTION WHICH IS GENERALLY OF THE SAME CROSS SECTIONAL AREA AS THE CAVITY AND WHICH EXTENDS UPWARDLY FROM THE CAVITY TO AN OPENING. MATERIAL IS DISPOSED THROUGH THE OPENING TO FILL THE CAVITY AND AT LEAST A PART OF THE SMALLER PORTION OF THE BORE ABOVE THE CAVITY. THESE MATERIALS INCLUDE PARTICLES MADE OF CARBON GRAINS SINTERED TOGETHER BY A BINDER SUCH AS COBALT AND AN ADDITIONAL FILLER METAL POWDER. THE FILLER METAL POWDER IS MELTED SO AS TO FILL THE SPACES BETWEEN THE PARTICLES AND THEREAFTER SOLIDIFIES TO FORM A COMPOSITE OF THE PARTICLES BONDED TOGETHER BY THE FILLER MATERIAL.