JPS5582800A - Preparation of tungusten wire for printing head - Google Patents

Preparation of tungusten wire for printing head

Info

Publication number
JPS5582800A
JPS5582800A JP15464178A JP15464178A JPS5582800A JP S5582800 A JPS5582800 A JP S5582800A JP 15464178 A JP15464178 A JP 15464178A JP 15464178 A JP15464178 A JP 15464178A JP S5582800 A JPS5582800 A JP S5582800A
Authority
JP
Japan
Prior art keywords
variable resistor
value
rods
wire
wire rod
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
JP15464178A
Other languages
Japanese (ja)
Inventor
Hisao Yabe
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP15464178A priority Critical patent/JPS5582800A/en
Publication of JPS5582800A publication Critical patent/JPS5582800A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To make the electrolytic polishing amount of whole wire rod uniform, by dipping plural short length tungsten wire rods in electrolytic liquid and automatically controlling the resistance value of variable resistor corresponding to the deviation of preliminary set up standard value, measuring the current value turned on each wire rod, after connecting the above rods with the same power source in parallel through each variable resistor.
CONSTITUTION: A fixed length of the plural wire rods 4 is dipped in the electrolyte (a) and the rods 4 are connected in parallel with the anode side of the same power source 3 through each variable resistor 5. Each current turned on each wire rod, is measured by the ammeter 6 and measured value converted in digital value by the A/D converter 7, is sent to CPU 8 and is memorized in the memory device 9 individually. Then, memorized values are compared with the standard current value set up in the memory device 10 preliminary and control signal is sent to corresponding variable resistor with the quantity of deviation is exceeded allowable limit and then, the resistance value is controlled automatically by the signal converted in analogue signal by the A/D converter 11.
COPYRIGHT: (C)1980,JPO&Japio
JP15464178A 1978-12-15 1978-12-15 Preparation of tungusten wire for printing head Pending JPS5582800A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15464178A JPS5582800A (en) 1978-12-15 1978-12-15 Preparation of tungusten wire for printing head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15464178A JPS5582800A (en) 1978-12-15 1978-12-15 Preparation of tungusten wire for printing head

Publications (1)

Publication Number Publication Date
JPS5582800A true JPS5582800A (en) 1980-06-21

Family

ID=15588646

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15464178A Pending JPS5582800A (en) 1978-12-15 1978-12-15 Preparation of tungusten wire for printing head

Country Status (1)

Country Link
JP (1) JPS5582800A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100948705B1 (en) 2007-07-13 2010-03-22 연세대학교 산학협력단 Method And Appratus For Manufacturing Hyperfine Needle Electrode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100948705B1 (en) 2007-07-13 2010-03-22 연세대학교 산학협력단 Method And Appratus For Manufacturing Hyperfine Needle Electrode

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