JPS6137005B2 - - Google Patents

Info

Publication number
JPS6137005B2
JPS6137005B2 JP58249760A JP24976083A JPS6137005B2 JP S6137005 B2 JPS6137005 B2 JP S6137005B2 JP 58249760 A JP58249760 A JP 58249760A JP 24976083 A JP24976083 A JP 24976083A JP S6137005 B2 JPS6137005 B2 JP S6137005B2
Authority
JP
Japan
Prior art keywords
oxide film
vacuum
aluminum
hollow
gas
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.)
Expired
Application number
JP58249760A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59130624A (ja
Inventor
Hajime Ishimaru
Shigeru Nishizaki
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.)
Altemira Co Ltd
Original Assignee
Showa Aluminum Corp
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
Priority claimed from JP56177552A external-priority patent/JPS5919769B2/ja
Application filed by Showa Aluminum Corp filed Critical Showa Aluminum Corp
Priority to JP58249760A priority Critical patent/JPS59130624A/ja
Publication of JPS59130624A publication Critical patent/JPS59130624A/ja
Publication of JPS6137005B2 publication Critical patent/JPS6137005B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/14—Making other products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/009—Gas treatment of work

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Of Metal (AREA)
JP58249760A 1981-11-04 1983-12-26 真空用アルミニウム製中空押出形材の製造法 Granted JPS59130624A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58249760A JPS59130624A (ja) 1981-11-04 1983-12-26 真空用アルミニウム製中空押出形材の製造法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP56177552A JPS5919769B2 (ja) 1981-11-04 1981-11-04 真空用アルミニウム製中空押出形材の製造法
JP58249760A JPS59130624A (ja) 1981-11-04 1983-12-26 真空用アルミニウム製中空押出形材の製造法

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP56177552A Division JPS5919769B2 (ja) 1981-11-04 1981-11-04 真空用アルミニウム製中空押出形材の製造法

Publications (2)

Publication Number Publication Date
JPS59130624A JPS59130624A (ja) 1984-07-27
JPS6137005B2 true JPS6137005B2 (enrdf_load_stackoverflow) 1986-08-21

Family

ID=26498063

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58249760A Granted JPS59130624A (ja) 1981-11-04 1983-12-26 真空用アルミニウム製中空押出形材の製造法

Country Status (1)

Country Link
JP (1) JPS59130624A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS59130624A (ja) 1984-07-27

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