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公开(公告)号：US20230211398A1
公开(公告)日：2023-07-06
申请号：US17640356
申请日：2022-01-06
发明人： Baikang ZHU , Hengcong TAO , Le ZHANG , Bo DING
CPC分类号： B21C23/002 , C21D1/32 , C21D6/004 , C22C38/50
摘要： The present disclosure relates to the field of screw pump technologies, and in particular to a rotary mold extrusion molding process of a screw pump rotor. The rotary mold extrusion molding process of a screw pump rotor includes: performing isothermal spheroidizing annealing for a metal embryo material after treating the metal embryo material ultrasonically for 8˜30 s; performing cylindrical turning for the annealed metal embryo material and then performing sand-blasting, and soaking the metal embryo material in saponified oil for 10˜30 min for lubrication treatment, where the saponified oil contains a nano-silicon carbide of 0.5%˜8% which is a nano-silicon carbide mixture with particle sizes of 20˜60 nm and 140˜200 nm with a mixed weight ratio of 1:(2.8˜4); at room temperature, placing the metal embryo material into an extrusion cylinder to perform rotary mold extrusion molding so as to obtain a finished product.
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公开(公告)号：US20240042654A1
公开(公告)日：2024-02-08
申请号：US17642707
申请日：2022-01-06
发明人： Baikang ZHU , Hengcong TAO , Le ZHANG , Bo DING
IPC分类号： B29C33/38
CPC分类号： B29C33/3842
摘要： A preparation method of a screw pump screw pump screw rod rubber lining mould includes: mixing a high strength wear-resistant material with a binder to obtain a mixed slurry; injecting the mixed slurry into a female die for solidification and taking out to form a screw rod rubber lining mould preform; drying and sintering the screw rod rubber lining mould preform to obtain a screw rod rubber lining mould; immersing the screw rod rubber lining mould into a surface treatment liquid for surface heat treatment to form a wear-resistant layer, and cooling down to obtain a final mould. The high strength wear-resistant material is prepared by using a ZnFe2O4 nano-particle reinforced Ti(C,N)-based metal ceramic composite material; the surface treatment liquid includes an aluminum borosilicate whisker/polyimide composite material solution; the high strength wear-resistant material having good strength, good hardness, good fracture toughness, and good wear resistance is prepared and applied.
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