JPS643902A - Copper wire for picture display device such as video, television, etc., and manufacture thereof - Google Patents

Copper wire for picture display device such as video, television, etc., and manufacture thereof

Info

Publication number
JPS643902A
JPS643902A JP15756687A JP15756687A JPS643902A JP S643902 A JPS643902 A JP S643902A JP 15756687 A JP15756687 A JP 15756687A JP 15756687 A JP15756687 A JP 15756687A JP S643902 A JPS643902 A JP S643902A
Authority
JP
Japan
Prior art keywords
copper
video
television
unidirectionally
picture
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
JP15756687A
Other languages
Japanese (ja)
Inventor
Masanori Kato
Takashi Ogata
Tsutomu Tominaga
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.)
Eneos Corp
Original Assignee
Nippon Mining Co 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 Nippon Mining Co Ltd filed Critical Nippon Mining Co Ltd
Priority to JP15756687A priority Critical patent/JPS643902A/en
Priority to US07/080,336 priority patent/US4792369A/en
Priority to US07/237,492 priority patent/US4874436A/en
Publication of JPS643902A publication Critical patent/JPS643902A/en
Pending legal-status Critical Current

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  • Conductive Materials (AREA)
  • Insulated Conductors (AREA)

Abstract

PURPOSE:To obtain extremely clear picture when used as a wire for video and television by making copper of a high purity with the contents of silver and sulphur respectively below 0.5ppm either solidification unidirectionally or single-crystallization. CONSTITUTION:Copper of a high purity with the contents of Ag and S respectively below 0.5ppm is either solidified unidirectionally or single-crystallized. For this purpose, electrolyte copper free from impurities is founded by the following foundry method: protruding one end of a mold 6 in a molten bath of highly pure copper 1 so that the mold 6 is heated with the heat of molten metal, solidification surface can be maintained on the inlet side of molten metal without using other heating means without overheating, and it is easily made possible to either solidify unidirectionally or single-crystallize. This makes it possible to obtain copper wire with less number of crystal grain for picture display devices such as video, television etc., and to make the picture clearer.
JP15756687A 1987-02-19 1987-06-26 Copper wire for picture display device such as video, television, etc., and manufacture thereof Pending JPS643902A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP15756687A JPS643902A (en) 1987-06-26 1987-06-26 Copper wire for picture display device such as video, television, etc., and manufacture thereof
US07/080,336 US4792369A (en) 1987-02-19 1987-07-30 Copper wires used for transmitting sounds or images
US07/237,492 US4874436A (en) 1987-02-19 1988-08-26 Method for producing high purity electrolytic copper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15756687A JPS643902A (en) 1987-06-26 1987-06-26 Copper wire for picture display device such as video, television, etc., and manufacture thereof

Publications (1)

Publication Number Publication Date
JPS643902A true JPS643902A (en) 1989-01-09

Family

ID=15652483

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15756687A Pending JPS643902A (en) 1987-02-19 1987-06-26 Copper wire for picture display device such as video, television, etc., and manufacture thereof

Country Status (1)

Country Link
JP (1) JPS643902A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59167904A (en) * 1983-03-11 1984-09-21 日立電線株式会社 Wire for audio device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59167904A (en) * 1983-03-11 1984-09-21 日立電線株式会社 Wire for audio device

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