SELECTIVE LASER MELTING GRADIENT POWDER RECOVERY APPARATUS AND RECOVERY METHOD

WIPO Patent Application WO/2024/012012

A1

A selective laser melting gradient powder recovery apparatus and a recovery method. The apparatus comprises an ultrasonic powder suction apparatus (1), a vertical support frame (2), a first vacuum pump (5), a sealing apparatus (6), a second rotating motor (7), a powder storage bag, a vacuum box (9), a vibrating screen (10), a waste tank (11), a second vacuum pump (12), a powder conveying pipe (13), a cooling apparatus (14), a water tank (15), and a spiral powder conveying pipe (16). According to the present invention, the risk of metal powder explosion is effectively reduced by means of cooling of the cooling apparatus (14), and optimal gradient powder is obtained by means of multiple times of vibration screening. The apparatus is simple in structure and high in controllability, operation conditions are easy to achieve, mixing adhesion of different powder is effectively avoided, a recovery rate of gradient powder is increased, manufacturing of gradient materials having different components is achieved, the contact between powder and air is reduced by means of vacuum operation, and workers do not need to be in direct contact with the powder, thereby avoiding damage to health of the workers.

CUI CHENGYUN (CN)
SUN PANJIE (CN)
YE FUYU (CN)
WANG XINGYU (CN)
WEI LIZHEN (CN)
CUI XIGUI (CN)

PCT/CN2023/091517

January 18, 2024

April 28, 2023

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UNIV JIANGSU (CN)

B22F10/28; B07B1/28; B07B9/00; B22F10/73; B22F12/20; B22F12/90; B33Y10/00; B33Y30/00

CN115041703A	2022-09-13
CN109848416A	2019-06-07
CN107639231A	2018-01-30
CN208825555U	2019-05-07
CN214027259U	2021-08-24
US20190151954A1	2019-05-23

NANJING IPZHI INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)

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