JPS5726123A - Production of hardened piston ring made of steel - Google Patents

Production of hardened piston ring made of steel

Info

Publication number
JPS5726123A
JPS5726123A JP10190480A JP10190480A JPS5726123A JP S5726123 A JPS5726123 A JP S5726123A JP 10190480 A JP10190480 A JP 10190480A JP 10190480 A JP10190480 A JP 10190480A JP S5726123 A JPS5726123 A JP S5726123A
Authority
JP
Japan
Prior art keywords
piston ring
steel
shape
hardened
temp
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP10190480A
Other languages
Japanese (ja)
Other versions
JPS6363613B2 (en
Inventor
Manabu Toyoda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Proterial Ltd
Original Assignee
Hitachi Metals Ltd
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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Priority to JP10190480A priority Critical patent/JPS5726123A/en
Publication of JPS5726123A publication Critical patent/JPS5726123A/en
Publication of JPS6363613B2 publication Critical patent/JPS6363613B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/40—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

PURPOSE:To improve the yield of products by working a striplike annealed steel blank material into a ring shape, heating the same to a hardening temp., and plastically screwing down the shape while quickly cooling the same by means of dies at the time of producing a hardened piston ring made of steel. CONSTITUTION:A striplike steel material made by rolling or drawing is annealed to soften, and is hot- or cold-worked to a piston ring shape. Next, the work 1 is heated to a hardening temp., after which it is placed on a female die 4, and a male die 3 is put thereon. While it is quickly cooled by a middle die 2 at above the temp. at which martensite transformation initiates, it is screwed down in an arrow direction, whereby it is plastically screwed down and straightened to have the roundness and flatness of a ring; at the same time, it is hardened, whereby the piston ring of high hardness, high strength and a correct shape is produced at a high yield.
JP10190480A 1980-07-25 1980-07-25 Production of hardened piston ring made of steel Granted JPS5726123A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10190480A JPS5726123A (en) 1980-07-25 1980-07-25 Production of hardened piston ring made of steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10190480A JPS5726123A (en) 1980-07-25 1980-07-25 Production of hardened piston ring made of steel

Publications (2)

Publication Number Publication Date
JPS5726123A true JPS5726123A (en) 1982-02-12
JPS6363613B2 JPS6363613B2 (en) 1988-12-08

Family

ID=14312889

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10190480A Granted JPS5726123A (en) 1980-07-25 1980-07-25 Production of hardened piston ring made of steel

Country Status (1)

Country Link
JP (1) JPS5726123A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0711630A1 (en) * 1994-11-10 1996-05-15 Hitachi Metals, Ltd. Flat steel wire for side rails of oil ring in internal combustion engine and manufacturing method
CN100439518C (en) * 2006-05-11 2008-12-03 镇江中船设备有限公司 High-frequency quenching process for piston ring groove
JP2012067335A (en) * 2010-09-21 2012-04-05 Nsk Ltd Heat treatment deformation correcting device of annular work

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0711630A1 (en) * 1994-11-10 1996-05-15 Hitachi Metals, Ltd. Flat steel wire for side rails of oil ring in internal combustion engine and manufacturing method
CN100439518C (en) * 2006-05-11 2008-12-03 镇江中船设备有限公司 High-frequency quenching process for piston ring groove
JP2012067335A (en) * 2010-09-21 2012-04-05 Nsk Ltd Heat treatment deformation correcting device of annular work

Also Published As

Publication number Publication date
JPS6363613B2 (en) 1988-12-08

Similar Documents

Publication Publication Date Title
JPS5726123A (en) Production of hardened piston ring made of steel
JPS5614043A (en) Production of hardened piston ring made of steel
JPS5614044A (en) Production of hardened piston ring made of steel
GB772103A (en) Method for forming heads on the ends of steel rods
SU474419A1 (en) Method of making bimetallic products
JPS56114545A (en) Cold forging method for housing having plural jaws of joint
US3250648A (en) Method of producing hardened steel products
SU1306621A1 (en) Method of producing hollow articles
SU897866A1 (en) Method of producing tool-die forged billets
SU965586A1 (en) Method of producing wedge shaped forgings
RU1803243C (en) Method for forming articles
SU1006148A1 (en) Method of restoring dies
JPS5719325A (en) Production of steel product
SU721227A1 (en) Method of stamping articles with lateral branches
SU1311826A1 (en) Method of forging an ingot
SU592504A1 (en) Method of making tool for hot working of metals
SU685403A1 (en) Method of feeding work for hot stamping
FR2431067A2 (en) Metal working process for mfr. of hollow head pivot - by cold forging and redressing of billet from vibration tempered ring
SU834230A1 (en) Method of pre-treatment of super-plastic alloys
SU642064A1 (en) Method of manufacturing curvilinear parts
SU513829A1 (en) Method of making bimetallic products
SU810352A1 (en) Method of working press tool
JPS56136930A (en) Working method for high tensile steel plate
SU1731386A1 (en) Method of making hollow workpieces
SU1696519A1 (en) Method of heat treatment of dies