JPS5328042A - Process for blackening pipe and apparatus therefor - Google Patents

Process for blackening pipe and apparatus therefor

Info

Publication number
JPS5328042A
JPS5328042A JP10153376A JP10153376A JPS5328042A JP S5328042 A JPS5328042 A JP S5328042A JP 10153376 A JP10153376 A JP 10153376A JP 10153376 A JP10153376 A JP 10153376A JP S5328042 A JPS5328042 A JP S5328042A
Authority
JP
Japan
Prior art keywords
blackening
pipe
apparatus therefor
therefor
blackening pipe
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
JP10153376A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5711955B2 (enrdf_load_stackoverflow
Inventor
Nobumasa Shigemoto
Toshio Hiruma
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 JP10153376A priority Critical patent/JPS5328042A/ja
Publication of JPS5328042A publication Critical patent/JPS5328042A/ja
Publication of JPS5711955B2 publication Critical patent/JPS5711955B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Chemical Treatment Of Metals (AREA)
  • Heat Treatment Of Articles (AREA)
JP10153376A 1976-08-27 1976-08-27 Process for blackening pipe and apparatus therefor Granted JPS5328042A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10153376A JPS5328042A (en) 1976-08-27 1976-08-27 Process for blackening pipe and apparatus therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10153376A JPS5328042A (en) 1976-08-27 1976-08-27 Process for blackening pipe and apparatus therefor

Publications (2)

Publication Number Publication Date
JPS5328042A true JPS5328042A (en) 1978-03-15
JPS5711955B2 JPS5711955B2 (enrdf_load_stackoverflow) 1982-03-08

Family

ID=14303077

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10153376A Granted JPS5328042A (en) 1976-08-27 1976-08-27 Process for blackening pipe and apparatus therefor

Country Status (1)

Country Link
JP (1) JPS5328042A (enrdf_load_stackoverflow)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3437532A (en) * 1965-07-14 1969-04-08 Allegheny Ludlum Steel Dark colored stainless steel surfaces
JPS4913143A (enrdf_load_stackoverflow) * 1972-06-02 1974-02-05
JPS5185068A (enrdf_load_stackoverflow) * 1974-09-02 1976-07-26 Rieber & Son As
JPS5198677A (enrdf_load_stackoverflow) * 1975-02-27 1976-08-31

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3437532A (en) * 1965-07-14 1969-04-08 Allegheny Ludlum Steel Dark colored stainless steel surfaces
JPS4913143A (enrdf_load_stackoverflow) * 1972-06-02 1974-02-05
JPS5185068A (enrdf_load_stackoverflow) * 1974-09-02 1976-07-26 Rieber & Son As
JPS5198677A (enrdf_load_stackoverflow) * 1975-02-27 1976-08-31

Also Published As

Publication number Publication date
JPS5711955B2 (enrdf_load_stackoverflow) 1982-03-08

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