NO944627L - Rullemeiselkrone med slitefast innsats - Google Patents

Rullemeiselkrone med slitefast innsats

Info

Publication number
NO944627L
NO944627L NO944627A NO944627A NO944627L NO 944627 L NO944627 L NO 944627L NO 944627 A NO944627 A NO 944627A NO 944627 A NO944627 A NO 944627A NO 944627 L NO944627 L NO 944627L
Authority
NO
Norway
Prior art keywords
abrasive element
highly abrasive
drill bits
carbide
layer
Prior art date
Application number
NO944627A
Other languages
English (en)
Other versions
NO944627D0 (no
Inventor
Danny E Scott
Redd H Smith
Gordan A Tibbitts
Original Assignee
Baker Hughes Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/895,594 external-priority patent/US5348108A/en
Application filed by Baker Hughes Inc filed Critical Baker Hughes Inc
Publication of NO944627D0 publication Critical patent/NO944627D0/no
Publication of NO944627L publication Critical patent/NO944627L/no

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Abstract

Det er tilveiebragt en forbedret jord-borkrone av rullemeiseltypen (65) og en innsats (65, 83, 85) for bruk i denne. Et høyabrasivt element er belagt med minst ett lag av metallisk materiale (219, 221, 223). Det høyabrasive element er så plassert i et holderhulrom (215) i en på forhånd utfor- met hardmetallkappe (213). Det høyabrasive element er deret- ter slagloddet eller infiltrert til hardmetallkappan. Metallurgiske og mekaniske forbindelser mellom det høyabrasive element, laget eller lagene av metallisk materiale på det høyabrasive element, slagloddingen eller infiltrerings- bindematerialet, og hardmetallkappens bruddsterke materiale fastholder det høyabrasive element i hulrommet i hardmetallkappen. Forbedrede jord-borkroner ifølge denne utføringsform av foreliggende oppfinnelse tilveiebringer abrasjonsfaste jord-borkroner av rullemeiseltypen. Slike forbedrede borkroner, og innsatsene for disse, er utformet uten behov for høytemperatur-høytrykksprosesser.
NO944627A 1992-06-08 1994-12-01 Rullemeiselkrone med slitefast innsats NO944627L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/895,594 US5348108A (en) 1991-03-01 1992-06-08 Rolling cone bit with improved wear resistant inserts
PCT/US1993/005576 WO1993025795A1 (en) 1992-06-08 1993-06-02 Rolling cone bit with wear resistant insert

Publications (2)

Publication Number Publication Date
NO944627D0 NO944627D0 (no) 1994-12-01
NO944627L true NO944627L (no) 1995-01-26

Family

ID=26786812

Family Applications (1)

Application Number Title Priority Date Filing Date
NO944627A NO944627L (no) 1992-06-08 1994-12-01 Rullemeiselkrone med slitefast innsats

Country Status (1)

Country Link
NO (1) NO944627L (no)

Also Published As

Publication number Publication date
NO944627D0 (no) 1994-12-01

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