JPS57159537A - Method and apparatus for ion nitriding treatment - Google Patents

Method and apparatus for ion nitriding treatment

Info

Publication number
JPS57159537A
JPS57159537A JP4573881A JP4573881A JPS57159537A JP S57159537 A JPS57159537 A JP S57159537A JP 4573881 A JP4573881 A JP 4573881A JP 4573881 A JP4573881 A JP 4573881A JP S57159537 A JPS57159537 A JP S57159537A
Authority
JP
Japan
Prior art keywords
discharge
longlasting
nitriding treatment
voltage
circuit
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
JP4573881A
Other languages
Japanese (ja)
Other versions
JPS6112990B2 (en
Inventor
Mizuo Edamura
Shunji Takamoto
Kyoji Kajikawa
Minoru Makimura
Fumihiko Yoshioka
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.)
Sansha Electric Manufacturing Co Ltd
Kawasaki Heavy Industries Ltd
Kawasaki Motors Ltd
Original Assignee
Sansha Electric Manufacturing Co Ltd
Kawasaki Heavy Industries Ltd
Kawasaki Jukogyo KK
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 Sansha Electric Manufacturing Co Ltd, Kawasaki Heavy Industries Ltd, Kawasaki Jukogyo KK filed Critical Sansha Electric Manufacturing Co Ltd
Priority to JP4573881A priority Critical patent/JPS57159537A/en
Publication of JPS57159537A publication Critical patent/JPS57159537A/en
Publication of JPS6112990B2 publication Critical patent/JPS6112990B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To carry out perfectly good nitriding treatment in good efficiency, in generating longlasting are discharge, by detecting the generation of said longlasting arc discharge by voltage variation of discharge voltage lowered per a unit time.
CONSTITUTION: In an ion nitriding treatment method applying D.C. current by using the furnace wall of a vacuum reaction furnace 1 as an anode and an object to be treated as a cathode, when longlasting arc discharge is generated in the vacuum reaction furnace 1, voltage variation of lowered discharge voltage is detected by a current voltage detector 19 and, when the detected value is larger than a set value, a gate blocking circuit 18 is instantaneously operated as well as said detected value is applied to a longlasting arc discharge detecting circuit 21 and the output thereof is applied to a soft start circuit 20 through an alarm circuit 22. As described above, while are discharge is prevented from being generated during treatment, ion nitriding treatment is carried out.
COPYRIGHT: (C)1982,JPO&Japio
JP4573881A 1981-03-27 1981-03-27 Method and apparatus for ion nitriding treatment Granted JPS57159537A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4573881A JPS57159537A (en) 1981-03-27 1981-03-27 Method and apparatus for ion nitriding treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4573881A JPS57159537A (en) 1981-03-27 1981-03-27 Method and apparatus for ion nitriding treatment

Publications (2)

Publication Number Publication Date
JPS57159537A true JPS57159537A (en) 1982-10-01
JPS6112990B2 JPS6112990B2 (en) 1986-04-11

Family

ID=12727653

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4573881A Granted JPS57159537A (en) 1981-03-27 1981-03-27 Method and apparatus for ion nitriding treatment

Country Status (1)

Country Link
JP (1) JPS57159537A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005015964A1 (en) * 2003-08-07 2005-02-17 Hitachi Kokusai Electric Inc. Substrate processing apparatus and substrate processing method
WO2006109540A1 (en) * 2005-03-30 2006-10-19 Honda Motor Co., Ltd. Surface modifying jig of engine valve and surface modifying method employing it

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005015964A1 (en) * 2003-08-07 2005-02-17 Hitachi Kokusai Electric Inc. Substrate processing apparatus and substrate processing method
JPWO2005015964A1 (en) * 2003-08-07 2006-10-12 株式会社日立国際電気 Substrate processing apparatus and substrate processing method
US7767053B2 (en) 2003-08-07 2010-08-03 Hitachi Kokusai Electric Inc. Substrate processing apparatus and substrate processing method
WO2006109540A1 (en) * 2005-03-30 2006-10-19 Honda Motor Co., Ltd. Surface modifying jig of engine valve and surface modifying method employing it
US7892364B2 (en) 2005-03-30 2011-02-22 Honda Motor Co., Ltd. Surface modifying jig of engine valve and surface modifying method employing it

Also Published As

Publication number Publication date
JPS6112990B2 (en) 1986-04-11

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