METHOD FOR PROTECTING ROLLER-CUTTER BIT AGAINST WORKING-OUT IN DIAMETER

METHOD FOR PROTECTING ROLLER-CUTTER BIT AGAINST WORKING-OUT IN DIAMETER

Method for protecting a roller-cutter bit against working out in diameter comprises melting-on large-grain alloy to the outer surface of the bottom of the back side of each bit dowel-tail in combination with inserted hard-alloy teeth. At the radius of the bottom of the outer surface of each dowel-ta...

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Hauptverfasser: SPIRIDONOV MYKOLA PETROVYCH, SOKOLOVSKYI VOLODYMYR PETROVYCH, DOVZHOK VALERII YEVHENOVYCH, LAVRESHYN IHOR MYKOLAIOVYCH, NIEZHENTSEV SERHII VOLODYMYROVYCH, GUK ROMAN YOSYPOVYCH, KRYZHANIVSKYI YEVSTAKHII IVANOVYCH, MARYK VASYL BOHDANOVYCH
Format: Patent
Sprache:eng
Schlagworte:
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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creator SPIRIDONOV MYKOLA PETROVYCH
SOKOLOVSKYI VOLODYMYR PETROVYCH
DOVZHOK VALERII YEVHENOVYCH
LAVRESHYN IHOR MYKOLAIOVYCH
NIEZHENTSEV SERHII VOLODYMYROVYCH
GUK ROMAN YOSYPOVYCH
KRYZHANIVSKYI YEVSTAKHII IVANOVYCH
MARYK VASYL BOHDANOVYCH
description Method for protecting a roller-cutter bit against working out in diameter comprises melting-on large-grain alloy to the outer surface of the bottom of the back side of each bit dowel-tail in combination with inserted hard-alloy teeth. At the radius of the bottom of the outer surface of each dowel-tail of the bit, before application of melted-on solid alloy, one additionally drills circular openings.
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subjects EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
title METHOD FOR PROTECTING ROLLER-CUTTER BIT AGAINST WORKING-OUT IN DIAMETER
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