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公开(公告)号：US11731389B2
公开(公告)日：2023-08-22
申请号：US17796919
申请日：2021-08-25
Inventor： Dongdong Gu , Jie Gao , Chenglong Ma , Yingjie Song , Wei Chen
CPC classification number: B32B3/20 , B32B3/14 , B32B15/01 , B33Y10/00 , B32B2307/51 , B32B2307/558 , B32B2307/56
Abstract: A chiral cell includes a cell structure. The cell structure includes an upper ring, a middle ring, a lower ring, upper connecting rods, and lower connecting rods. The upper ring and the lower ring have the same geometrical shape, and the middle ring is located between the upper ring and the lower ring. A plurality of upper connecting rods is provided; the two ends of each upper connecting rod are respectively correspondingly connected to the upper ring and the middle ring and the upper connecting rods are obliquely and uniformly distributed between the upper ring and the middle ring; a plurality of lower connecting rods is provided; the two ends of each lower connecting rod are respectively correspondingly connected to the lower ring and the middle ring and the lower connecting rods are obliquely and uniformly distributed between the lower ring and the middle ring.
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公开(公告)号：US11946122B2
公开(公告)日：2024-04-02
申请号：US17263876
申请日：2020-07-23
Inventor： Dongdong Gu , Kaijie Lin , Jingfeng Quan , Yamei Fang , Qing Ge , Jie Zhuang , Yang Liu , Weisong Dong , Pengjiang Shuai
IPC: C22C38/00 , B22F1/05 , B22F1/065 , B22F9/04 , B22F10/28 , B22F10/322 , B22F10/36 , B22F10/366 , B23K26/00 , B23K26/342 , B33Y10/00 , B33Y70/00 , B23K103/04
CPC classification number: C22C38/007 , B22F9/04 , B22F10/28 , B22F10/36 , B22F10/366 , B23K26/0006 , B23K26/342 , B33Y70/00 , B22F1/05 , B22F1/065 , B22F2009/043 , B22F10/322 , B22F2301/255 , B22F2301/35 , B22F2304/10 , B23K2103/05 , B33Y10/00 , B22F2998/10 , B22F1/052 , B22F2009/043 , B22F10/28
Abstract: The present disclosure relates to a micron silver particle-reinforced 316L stainless steel matrix composite, including a 316L stainless steel matrix and silver particles uniformly distributed in the 316L stainless steel matrix. The silver particles have a weight 1% to 5% of the total weight of the composite; and the composite has a density of 7.9 g/cm3 to 8.2 g/cm3 and a relative density of more than 98%. The composite is prepared by the following method: mixing raw materials of a spherical silver powder and a spherical 316L stainless steel powder; subjecting a resulting mixture to mechanical ball milling to obtain a mixed powder; sieving the mixed powder and adding a resulting powder to a powder cylinder of an SLM forming machine; and charging an inert protective gas for printing to obtain the composite.
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公开(公告)号：US11826827B2
公开(公告)日：2023-11-28
申请号：US18000830
申请日：2021-10-21
Inventor： Dongdong Gu , Xinyu Shi , Yanze Li , Donghua Dai , Qing Ge , Yixuan Sun
IPC: B22F12/53 , B33Y30/00 , B29C64/35 , B29C64/209
CPC classification number: B22F12/53 , B29C64/35 , B33Y30/00 , B29C64/209
Abstract: A coaxial powder-feeding nozzle includes a partition wall-type shell, a powder flow area, a cooling liquid flow area and a shielding gas conveying channel. A powder self-cleaning filter is on the outer side of the partition wall-type shell; the powder self-cleaning filter includes a set of powder collecting tubes on each side of the partition wall-type shell in the axial direction; each set of powder collecting tubes includes at least one powder collecting tube; under the coaction of a suction force applied by a powder collecting system and the self-weight of residual powder, a residual powder inlet of each powder collecting tube causes the residual powder on the opposite side to roll down to the bottom along the wall surface of a metal tube to be processed on the same side, and to be gathered at the front end of the residual powder inlet of the powder collecting tube.
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