E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 17/02 (2006.01)
Patent
CA 2525718
The present invention relates to a connection rod (1) for rock drilling comprising a first rod part (2) which has an external thread (4) provided at one end thereof, wherein the end of the rod opposite to said one end includes an end portion (6) which carries an internal thread (5), wherein the end portion (6) is joined to the first rod part (2) by friction welding and wherein the end portion (6) has been heat treated prior to being joined to said first rod part (2). The invention also relates to a method of producing such a connection rod.
L'invention concerne une barre de liaison (1) utilisée pour le forage de roches. Cette barre de liaison comprend une première partie de barre (2) pourvue d'un filet externe (4) au niveau d'une extrémité. L'extrémité de la barre située à l'opposé de cette extrémité comprend une partie terminale (6) pourvue d'un filet interne (5). Selon l'invention, cette partie terminale (6) est unie à ladite première partie de barre (2), par soudage par friction, ladite partie terminale (6) étant soumise à un traitement thermique avant d'être unie à la première partie de barre (2). Cette invention se rapporte en outre à un procédé de production de ladite barre de liaison.
Atlas Copco Secoroc Ab
Kirby Eades Gale Baker
LandOfFree
A connection rod for rock drilling and a method of producing... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with A connection rod for rock drilling and a method of producing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A connection rod for rock drilling and a method of producing... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1948414