JPS552710A - Improving method for antiseizing property of parts - Google Patents

Improving method for antiseizing property of parts

Info

Publication number
JPS552710A
JPS552710A JP7329878A JP7329878A JPS552710A JP S552710 A JPS552710 A JP S552710A JP 7329878 A JP7329878 A JP 7329878A JP 7329878 A JP7329878 A JP 7329878A JP S552710 A JPS552710 A JP S552710A
Authority
JP
Japan
Prior art keywords
parts
irradiated
simply
antiseizing
heat source
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.)
Pending
Application number
JP7329878A
Other languages
Japanese (ja)
Inventor
Hideo Hisada
Tomoyuki Takahashi
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.)
Komatsu Ltd
Original Assignee
Komatsu 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 Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP7329878A priority Critical patent/JPS552710A/en
Publication of JPS552710A publication Critical patent/JPS552710A/en
Pending 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/06—Surface hardening
    • C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation

Abstract

PURPOSE:To simply, economically improve the antiseizing property, by irradiating the high energy density heat source (laser for instance) on the outer surface of the parts for forming the high hard protuberance placing an interval. CONSTITUTION:The specifically shaped parts 1 is moved to the left and the right by the rack 17 and the pinion 18, while being rotated by the turning jig 13. On the other hand, the beam 11 being generated by the laser generator 10 is irradiated on the outer surface of the parts 1 through the mirror system 12. The spot 2, being irradiated by this high energy density heat source, is hardened and is transformed into the martensite causing expansion; as a result, the ring type hard pro-tuberances 2 are formed placing an equal interval, so that the labyrinth grooves are formed between the adjoining protuberances 2. By this method, the labyrinth groove can be simply, rapidly formed without depending on the machining work. This method is appropriate for improving the antiseizing property of the hydraulic valve's spool, the cylinder's piston, etc.
JP7329878A 1978-06-19 1978-06-19 Improving method for antiseizing property of parts Pending JPS552710A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7329878A JPS552710A (en) 1978-06-19 1978-06-19 Improving method for antiseizing property of parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7329878A JPS552710A (en) 1978-06-19 1978-06-19 Improving method for antiseizing property of parts

Publications (1)

Publication Number Publication Date
JPS552710A true JPS552710A (en) 1980-01-10

Family

ID=13514105

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7329878A Pending JPS552710A (en) 1978-06-19 1978-06-19 Improving method for antiseizing property of parts

Country Status (1)

Country Link
JP (1) JPS552710A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59212572A (en) * 1983-05-14 1984-12-01 Teikoku Piston Ring Co Ltd Cylinder with inner periphery subjected treatment by laser hardening
JPH0681030A (en) * 1991-11-15 1994-03-22 Tone Corp Sliding member excellent in seizure resistance and its production
KR100418457B1 (en) * 2001-01-15 2004-02-14 현대중공업 주식회사 Laser Hardening methods of the piston and the piston ring for marine diesel engine and its apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2743992A1 (en) * 1976-10-05 1978-04-06 Boc Ltd PROCESS AND EQUIPMENT FOR TREATMENT OF METALLIC STORAGE SURFACES OF COMPONENTS

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2743992A1 (en) * 1976-10-05 1978-04-06 Boc Ltd PROCESS AND EQUIPMENT FOR TREATMENT OF METALLIC STORAGE SURFACES OF COMPONENTS

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59212572A (en) * 1983-05-14 1984-12-01 Teikoku Piston Ring Co Ltd Cylinder with inner periphery subjected treatment by laser hardening
JPH0512586B2 (en) * 1983-05-14 1993-02-18 Teikoku Piston Ring Co Ltd
JPH0681030A (en) * 1991-11-15 1994-03-22 Tone Corp Sliding member excellent in seizure resistance and its production
KR100418457B1 (en) * 2001-01-15 2004-02-14 현대중공업 주식회사 Laser Hardening methods of the piston and the piston ring for marine diesel engine and its apparatus

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