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Patent Agency Ranking
1.发明公开公开(公告)号：US20240167386A1
公开(公告)日：2024-05-23
申请号：US18512227
申请日：2023-11-17
Inventor： Yueguang Yu , Lingfeng Huang , Jianming Liu , Shuai Wang , Xiaoliang Lu , Yinghui Cai , Rui Guo , Tong Liu , Dan Guo , Chao Wu
CPC classification number: F01D5/288 , B05D1/12 , C23C28/022 , C25D7/00 , F01D11/122
Abstract: A titanium alloy blade tip with a wear-resistant protective coating and a preparation method thereof are provided. The method includes: (1) spraying MCrAlY alloy powder on a surface of a titanium alloy blade tip by high velocity oxygen fuel (HVOF) spraying at a spraying distance of 300-400 mm to obtain the titanium alloy blade tip with a MCrAlY layer on the surface; where M is one of Ni and NiCo; (2) pre-plating Ni at a current density of 4-10 A/dm2; (3) placing the pre-plated titanium alloy blade tip in a Watt solution, covering a surface of the pre-plated titanium alloy blade tip obtained in the step (2) with abrasive particles, and then performing composite electroplating at a current density of 0.5-2 A/dm2. In the method, the wear-resistant protective coating with the high adhesion strength is prepared on the titanium alloy blade tip, and the wear-resistant protective coating has good wear resistance.
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公开(公告)号：US12097461B2
公开(公告)日：2024-09-24
申请号：US17546786
申请日：2021-12-09
Inventor： Guoqiang Chen , Senlin Tian , Ping Ning , Xiaosong Yang , Linan Shao , Zhilong Zhao
CPC classification number: B01D53/002 , B01D5/0021 , B01D5/0072 , B01D46/02
Abstract: A method for treating arsenic-containing flue gas is disclosed. In the method, the arsenic-containing flue gas is subjected to a dry pre-dedusting treatment, and the dedusted flue gas is pre-cooled and then introduced into a vortex quenching system. The arsenic-containing flue gas is divided into high-temperature flue gas and low-temperature flue gas through the vortex quenching system. The outlet temperature of the low-temperature flue gas is dropped below the desublimation temperature of gaseous arsenic trioxide. The low-temperature flue gas is subjected to a gas-solid separation to obtain solid arsenic trioxide and treated flue gas.
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3.发明公开公开(公告)号：US20240167142A1
公开(公告)日：2024-05-23
申请号：US18512039
申请日：2023-11-17
Inventor： Yueguang Yu , Weiao Hou , Jianming Liu , Jie Shen , Xiaoliang Lu , Xu Wang , Dan Guo , Zhaoran Zheng , Kaiping Du
Abstract: A dense thick alloy coating with no layered organizational structure and a preparation method thereof are provided. The preparation method includes the following steps: step 1, placing a substrate in a plasma spraying apparatus, controlling a vacuum degree of the plasma spraying apparatus to be 0.2 mbar-0.5 mbar, controlling a length of a plasma flame of the plasma spraying apparatus to be 1000 mm-1200 mm, and controlling a diameter of the plasma flame to be 200 mm-300 mm; step 2, preheating, by using a plasma spray gun, the substrate to a temperature of 700° C.-1000° C. to obtain a preheated substrate; step 3, plasma spraying an alloy powder on the preheated substrate under a specific plasma spraying condition to obtain a sprayed substrate; and step 4, cooling the sprayed substrate after the plasma spraying, to thereby obtain the dense thick alloy coating without layered organizational structure.
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公开(公告)号：US20250122089A1
公开(公告)日：2025-04-17
申请号：US18677950
申请日：2024-05-30
Applicant: BGRIMM Technology Group
Inventor： Hao MA , Fan GUO , Chaozhen ZHENG , Qifan ZHOU , Sanping LIU , Haibei WANG , Shengdong WANG , Da LI
Abstract: Provided is method of extracting and separating gallium by emulsion liquid membrane. The method of extracting and separating gallium by emulsion liquid membrane includes preparation of the emulsion liquid membrane, extraction and deextraction. By establishing a proper emulsion liquid membrane system, gallium is selectively extracted from the gallium leaching solution. In the scheme of the present disclosure, chosen factors are optimized through fractional fractorial design and central composite design so as to obtain an optimal processing scheme. The influences of gallium solution/emulsion volume ratio, extractant concentration, H2SO4 concentration, emulsion stirring duration and emulsion stirring speed on the gallium extraction rate are studied, and efficient enrichment of gallium is achieved. Besides, reproducibility of the emulsion liquid membrane is also studied, and after demulsification, the separated oil is used again for experiments, without obvious difference from newly prepared emulsion liquid membrane.
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公开(公告)号：US12110808B2
公开(公告)日：2024-10-08
申请号：US18512227
申请日：2023-11-17
Inventor： Yueguang Yu , Lingfeng Huang , Jianming Liu , Shuai Wang , Xiaoliang Lu , Yinghui Cai , Rui Guo , Tong Liu , Dan Guo , Chao Wu
CPC classification number: F01D5/288 , B05D1/12 , C23C4/073 , C23C28/022 , C25D5/14 , C25D7/00 , C25D15/00 , F01D11/122
Abstract: A titanium alloy blade tip with a wear-resistant protective coating and a preparation method thereof are provided. The method includes: (1) spraying MCrAlY alloy powder on a surface of a titanium alloy blade tip by high velocity oxygen fuel (HVOF) spraying at a spraying distance of 300-400 mm to obtain the titanium alloy blade tip with a MCrAlY layer on the surface; where M is one of Ni and NiCo; (2) pre-plating Ni at a current density of 4-10 A/dm2; (3) placing the pre-plated titanium alloy blade tip in a Watt solution, covering a surface of the pre-plated titanium alloy blade tip obtained in the step (2) with abrasive particles, and then performing composite electroplating at a current density of 0.5-2 A/dm2. In the method, the wear-resistant protective coating with the high adhesion strength is prepared on the titanium alloy blade tip, and the wear-resistant protective coating has good wear resistance.
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