SU473753A1 - The method of heat treatment of locks for drill pipe - Google Patents

The method of heat treatment of locks for drill pipe

Info

Publication number
SU473753A1
SU473753A1 SU1969292A SU1969292A SU473753A1 SU 473753 A1 SU473753 A1 SU 473753A1 SU 1969292 A SU1969292 A SU 1969292A SU 1969292 A SU1969292 A SU 1969292A SU 473753 A1 SU473753 A1 SU 473753A1
Authority
SU
USSR - Soviet Union
Prior art keywords
locks
heat treatment
drill pipe
drill
induction hardening
Prior art date
Application number
SU1969292A
Other languages
Russian (ru)
Inventor
Леонид Артемьевич Лачинян
Георгий Александрович Давыдов
Виктор Дмитриевич Тютюнов
Original Assignee
Специальное Конструкторское Бюро Научно-Производственного Объединения "Геотехника"
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
Application filed by Специальное Конструкторское Бюро Научно-Производственного Объединения "Геотехника" filed Critical Специальное Конструкторское Бюро Научно-Производственного Объединения "Геотехника"
Priority to SU1969292A priority Critical patent/SU473753A1/en
Application granted granted Critical
Publication of SU473753A1 publication Critical patent/SU473753A1/en

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Description

3 индукционную закалку наружной поверхности замка, отличающийс  тем, что, с увеличени  ресурса замков путем повышени  износостойкости замковой резьбы, после индукционной закалки поверхности замка, про-5 извод т дополнительную индукционную за4 калку резьбы и низкотемпературный отпуск замка. 2. Способ по п. 1, отличающийс  тем, что дополнительную индукционную закалку производ т на глубину, в 1,5-2 раза превытающую глубину резьбы.3 induction hardening of the outer surface of the lock, characterized in that, from increasing the life of the locks by increasing the wear resistance of the locking thread, after induction hardening of the surface of the lock, additional induction hardening of the thread and low temperature tempering of the lock are induced. 2. A method according to claim 1, characterized in that the additional induction hardening is carried out to a depth 1.5-2 times the depth of the thread.

SU1969292A 1973-11-14 1973-11-14 The method of heat treatment of locks for drill pipe SU473753A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1969292A SU473753A1 (en) 1973-11-14 1973-11-14 The method of heat treatment of locks for drill pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1969292A SU473753A1 (en) 1973-11-14 1973-11-14 The method of heat treatment of locks for drill pipe

Publications (1)

Publication Number Publication Date
SU473753A1 true SU473753A1 (en) 1975-06-14

Family

ID=20567405

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1969292A SU473753A1 (en) 1973-11-14 1973-11-14 The method of heat treatment of locks for drill pipe

Country Status (1)

Country Link
SU (1) SU473753A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101876002A (en) * 2010-04-26 2010-11-03 晋西工业集团有限责任公司 Hardening and tempering method in the process of manufacturing drill stem connector
CN102140611A (en) * 2011-03-18 2011-08-03 上海海隆石油管材研究所 135 steel-level drill rod connector and heat treatment process thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101876002A (en) * 2010-04-26 2010-11-03 晋西工业集团有限责任公司 Hardening and tempering method in the process of manufacturing drill stem connector
CN102140611A (en) * 2011-03-18 2011-08-03 上海海隆石油管材研究所 135 steel-level drill rod connector and heat treatment process thereof

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