公开(公告)号：US20190186206A1

公开(公告)日：2019-06-20

申请号：US16222648

申请日：2018-12-17

Applicant: SANDVIK MINING AND CONSTRUCTION OY

Inventor： Kimmo ERONEN ,  Anssi HYVARINEN ,  Paul BROWN ,  Stephen CONNELLY ,  Risto KALLINEN ,  Sirpa LAUNIS ,  Juha PIIPPONEN ,  Esa RANTALA ,  Teemu MAJANDER

IPC: E21B15/00 ,  E21B7/02 ,  B32B1/08 ,  B32B27/08 ,  B32B27/06 ,  B32B27/40 ,  B32B5/18

CPC classification number: E21B15/00 ,  B32B1/08 ,  B32B5/18 ,  B32B27/065 ,  B32B27/08 ,  B32B27/40 ,  B32B2262/106 ,  B32B2266/0278 ,  B32B2307/56 ,  B32B2597/00 ,  E21B7/025

Abstract: A feed beam, a rock drilling unit and to a method of manufacturing a feed beam is provided. The feed beam includes a basic profile element, which has two or more superimposed material layers. At least one of the material layers may be made of a composite material.