Title:
METHOD FOR MANUFACTURING SLENDER METAL TUBE
Document Type and Number:
WIPO Patent Application WO/2019/172234
Kind Code:
A1
Abstract:
[Problem] To provide a method for manufacturing a slender metal tube that can be used as a hypodermic needle and has a roughened surface part on an outer-surface side. [Solution] A method for manufacturing a slender metal tube that has an outside diameter of 0.2-3 mm and a thickness of 0.05-0.3 mm, and has a roughened surface part on an outer-surface side, wherein: the method for manufacturing a slender metal tube has a step for continuously irradiating the slender metal tube with continuous-wave laser light along the length direction of the slender metal tube while rotating the slender metal tube in a state in which a support rod is inserted inside the slender metal tube, whereby the roughened surface part is formed on the outer-surface side of the slender metal tube; the rotation speed of the slender metal tube is 50-1000 r/min; and the radiation speed of the continuous-wave laser is 2000 mm/sec or higher.
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Inventors:
ITAKURA MASAHIKO (JP)
SHIMIZU KIYOSHI (JP)
UNO TAKAYUKI (JP)
KATAYAMA MASAHIRO (JP)
SHIMIZU KIYOSHI (JP)
UNO TAKAYUKI (JP)
KATAYAMA MASAHIRO (JP)
Application Number:
PCT/JP2019/008586
Publication Date:
September 12, 2019
Filing Date:
March 05, 2019
Export Citation:
Assignee:
DAICEL POLYMER LTD (JP)
International Classes:
B23K26/352
Domestic Patent References:
| WO2017216315A1 | 2017-12-21 | |||
| WO2014155481A1 | 2014-10-02 |
Foreign References:
| JP2014124330A | 2014-07-07 | |||
| JP2016078090A | 2016-05-16 | |||
| JP2017000496A | 2017-01-05 |
Attorney, Agent or Firm:
FURUYA Satoshi (JP)
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