Title:
COAXIAL POWDER FEEDING NOZZLE CAPABLE OF PNEUMATICALLY ADJUSTING POWDER FLOW FOCUS
Document Type and Number:
WIPO Patent Application WO/2020/224521
Kind Code:
A1
Abstract:
Disclosed is a coaxial powder feeding nozzle capable of pneumatically adjusting a powder flow focus. The nozzle comprises a laser head, a sleeve, a coaxial powder feeding head, a powder feeding cavity, a water cooling sleeve, and a water cooling cavity. The sleeve is connected below the laser head. The coaxial powder feeding head is connected below the sleeve. A focus lens is provided above the sleeve. A protective lens is provided at an upper end of the coaxial powder feeding head. The powder feeding cavity is a conical annular cavity formed between an outer wall of the coaxial powder feeding head and the water cooling sleeve. The powder feeding cavity is divided by a partition plate and an adjustment piece into an inner cavity and an outer cavity. The water cooling cavity is connected to a water inlet and a water outlet. Multiple adjustment pieces are provided, are evenly distributed along a circumferential direction, and are connected to a lower end of the partition plate. The adjustment piece can be deflected relative to the coaxial powder feeding head. The coaxial powder feeding nozzle of the present invention pneumatically adjusts the powder flow focus, has a simple structure, is highly responsive, and has a wide adjustment range.
Inventors:
LIU HAO (CN)
SUN SHIFENG (CN)
ZHANG TONG (CN)
LIU JIAN (CN)
DU XIAOTONG (CN)
LI XIAOJIA (CN)
GAO WENPENG (CN)
SUN SHIFENG (CN)
ZHANG TONG (CN)
LIU JIAN (CN)
DU XIAOTONG (CN)
LI XIAOJIA (CN)
GAO WENPENG (CN)
Application Number:
PCT/CN2020/088120
Publication Date:
November 12, 2020
Filing Date:
April 30, 2020
Export Citation:
Assignee:
UNIV CHINA MINING (CN)
International Classes:
C23C24/10; B23P6/00
Foreign References:
| CN110079797A | 2019-08-02 | |||
| CN101264519A | 2008-09-17 | |||
| JP2010207877A | 2010-09-24 | |||
| US20090095214A1 | 2009-04-16 | |||
| JPH11333584A | 1999-12-07 | |||
| CN102061467A | 2011-05-18 | |||
| CN103060801A | 2013-04-24 |
Attorney, Agent or Firm:
NANJING ZHENGLIAN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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