公开(公告)号：WO2019170436A1

公开(公告)日：2019-09-12

申请号：PCT/EP2019/054453

申请日：2019-02-22

Applicant: SANDVIK MINING AND CONSTRUCTION TOOLS AB

Inventor： RINDESKÄR, Andreas

IPC: E21B17/042 ,  F16L15/00

Abstract: A coupling for connecting downhole tubulars includes: a tubular body; and at least one of: a male screw thread formed on an outer surface of the body, and a female screw thread formed in an inner surface of the body. The at least one thread has a thread-form including a crest, a root, and a pair of flanks. The crest and the root are each cambered about a respective first and second camber radius. Each camber radius is greater than an outer diameter of the coupling.

公开(公告)号：WO2022180226A2

公开(公告)日：2022-09-01

申请号：PCT/EP2022/054824

申请日：2022-02-25

Applicant: SANDVIK MINING AND CONSTRUCTION TOOLS AB

Inventor： JANSSON, Tomas ,  NORDBERG, Anders

IPC: E21B17/042

Abstract: A coupling for connecting downhole tubulars, comprising a tubular body; a female coupling part; a male coupling part; and at least one of: a male screw thread formed on an outer surface of the body, and a female screw thread formed in an inner surface of the body, wherein: the at least one thread has a thread-form including a crest, a root, and a pair of flanks, the crest and the root are each cambered about a respective first and second camber radius, Rb, Rb-T along the entire length of the thread-form, and each camber radius, Rb, Rb-T, is greater than an outer diameter of the coupling; the male screw thread has a camber radius, Rbm, and the female screw thread has a camber radius, Rbf; characterized in that: each camber radius (Rb, Rb-T) is between 700 - 1900 mm.

公开(公告)号：WO2022175378A1

公开(公告)日：2022-08-25

申请号：PCT/EP2022/053920

申请日：2022-02-17

Applicant: SANDVIK MINING AND CONSTRUCTION TOOLS AB

Inventor： JANSSON, Tomas ,  KRAFT, Conny

IPC: E21B17/03 ,  E21B17/04 ,  E21B17/042

Abstract: A rock drill component to form part of a drilling assembly, the rock drill component comprising: a main body; a hexagonal shank provided at one end of the rock drill component; a radially projecting shoulder positioned axially between the main body and the hexagonal shank; wherein there is a transition section increases in diameter in a direction from the hexagonal shank to the shoulder; wherein the cross-sectional shape profile of the outer surface of the transition section in the plane of the longitudinal axis comprises a segment of an ellipse having semi-major axis (a); a semi-minor axis (b) and an exponential factor (n) according to the equation (I) characterised in that the ratio of the semi-major to semi-minor axes (a:b) is within the range 2b

公开(公告)号：WO2021239664A1

公开(公告)日：2021-12-02

申请号：PCT/EP2021/063760

申请日：2021-05-24

Applicant: SANDVIK MINING AND CONSTRUCTION TOOLS AB

Inventor： LINDBLOM, Anders ,  LOIKKANEN, Joona

IPC: E21B7/28 ,  E21B10/28 ,  E21B10/50 ,  E21B17/10 ,  E21D3/00

Abstract: A wear support assembly comprising a wear pad arranged on top of a support plate wherein the support plate has a lower surface for connecting to a raise boring tool and both the wear pad and the support plate have at least one hole for receiving a bolt to connect the wear pad to the support plate. Also a raise boring tool for raise boring operations comprising; a reamer head having a body; a plurality of roller cutters connected to the body using a holder; a nose or drive stem connected the body; and at least one wear support assembly wherein each support plate is connected directly to raise boring too and each wear pad is radially or perpendicularly bolted to each support plate.

公开(公告)号：WO2021180800A1

公开(公告)日：2021-09-16

申请号：PCT/EP2021/056075

申请日：2021-03-10

Applicant: SANDVIK MINING AND CONSTRUCTION TOOLS AB

Inventor： JANSSON, Tomas ,  NORMAN, Andreas ,  NORDBERG, Anders

IPC: E21B17/00 ,  E21B17/042

Abstract: A drill string comprising: an elongate hollow main length section (101); a male spigot portion ( 108) provided at the second end ( 106) having an externally threaded section (107) and a non-threaded shank (109) positioned axially intermediate the main length section (101) and the threaded section (107); the shank (109) having a transition section (206) positioned adjacent the main length section (101) or a radially projecting shoulder (110) at the second end (106), the transition section (206); wherein the cross-sectional shape profile of the outer surface of the transition section (206) in the plane of the longitudinal axis (204) comprises a segment of an ellipse having semi-major axis (a); a semi-minor axis (b) wherein the ratio of the semi-major to semi-minor axes (a:b) is within the range 2b

公开(公告)号：WO2021089727A1

公开(公告)日：2021-05-14

申请号：PCT/EP2020/081180

申请日：2020-11-05

Applicant: SANDVIK MINING AND CONSTRUCTION TOOLS AB

Inventor： NORMAN, Andreas ,  JANSSON, Tomas

IPC: E21B17/042

Abstract: The present invention relates to a drill string for percussive drilling comprising having a first elongate percussive drill rod comprising a main section and an externally threaded male end and a second elongate percussive drill rod comprising a main section and an internally threaded mounting sleeve. The male end and female ends overlap to form a coupling region and a thread clearance area is formed adjacent to the end most female thread. The mounting sleeve has a first region having a first outer skirt diameter, D1, at the axially rearward end and a second outer skirt diameter, D2, along part of the axial length between the axially rearward end and the main section forming a strengthened region wherein D2 is greater than D1.

公开(公告)号：WO2021005076A1

公开(公告)日：2021-01-14

申请号：PCT/EP2020/069163

申请日：2020-07-08

Applicant: SANDVIK MINING AND CONSTRUCTION TOOLS AB

Inventor： LILJA, Mirjam ,  BORGH, Ida ,  ARVANITIDIS, Ioannis ,  ÅKESSON, Leif ,  HAI, Xueying ,  NORGREN, Susanne

IPC: C22C1/05 ,  C22C29/08 ,  B22F5/00

Abstract: The present disclosure relates method of making a cemented carbide mining insert, a cemented carbide mining insert with having a chemical and hardness gradient and to the use thereof wherein the cemented carbide mining insert comprises Cr.

公开(公告)号：WO2020099197A1

公开(公告)日：2020-05-22

申请号：PCT/EP2019/080305

申请日：2019-11-06

Applicant: SANDVIK MINING AND CONSTRUCTION TOOLS AB

Inventor： LILJA, Mirjam ,  ARVANITIDIS, Ioannis

IPC: C22C29/08 ,  B22F3/24 ,  B22F5/00

Abstract: A method of redistributing the binder phase of a cemented carbide mining insert comprising one or more hard-phase components and a binder comprising the steps of: a) providing a green cemented carbide mining insert; b) applying at least one binder puller selected from a metal oxide or a metal carbonate to the surface of the green cemented carbide mining insert; and c) sintering the green cemented carbide mining insert characterized in that the metal oxide or metal carbonate is only applied to at least one local area on the surface of the green cemented carbide mining insert, also a cemented carbide having a hardness gradient and the use thereof.

公开(公告)号：WO2019170437A1

公开(公告)日：2019-09-12

申请号：PCT/EP2019/054455

申请日：2019-02-22

Applicant: SANDVIK MINING AND CONSTRUCTION TOOLS AB

Inventor： HAMMARGREN, John ,  NORMAN, Andreas

IPC: E21B17/042 ,  F16L15/06

Abstract: A connection for use in percussion drilling includes a male coupling and a female coupling. Each coupling includes a body and a respective screw thread formed on a respective inner or outer surface of the respective body. Each thread has a thread-form including a crest, a root, a contact flank and a non-contact flank. Each thread-form has a contact flank angle and a non-contact flank angle inclined relative to a respective baseline located at a respective minor or major diameter thereof. Each non-contact flank angle is greater than the respective contact flank angle. The crest of each thread-form is inclined from the respective contact flank to the respective non-contact flank such that an apex of the respective thread-form defining a respective minor or major diameter thereof is located adjacent to the respective non-contact flank.

公开(公告)号：WO2023275239A1

公开(公告)日：2023-01-05

申请号：PCT/EP2022/068053

申请日：2022-06-30

Applicant: SANDVIK MINING AND CONSTRUCTION TOOLS AB

Inventor： BLOMFELDT, Thomas ,  LEANDERS, Benneth ,  PORTIN, Johan ,  ANERUD, Marcus

IPC: E21B17/10 ,  E21B17/03 ,  B23K26/34 ,  E21B17/042 ,  B23K26/70 ,  E21B17/0426 ,  E21B17/1085

Abstract: A shank adapter to form part of a drilling assembly wherein at least a part of the external surface has at least one laser cladding layer for corrosion and / or wear protection and a method of providing corrosion protection on a shank adapter wherein a corrosive and / or wear protection layer is applied to at least one part of the external surface(s) of the shank adapter using laser cladding.