Method for preparing magnesium alloy bone screw bar via room-temperature rotary forging under alternating magnetic field in conjunction with cryogenic processing and magnesium alloy bone screw product

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United States of America

PATENT NO 12195835
APP PUB NO 20240060166A1
SERIAL NO

18234545

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Abstract

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The present application relates to the technical field of material processing, and especially relates to a method for preparing a magnesium alloy bone screw bar via room-temperature rotary forging under alternating magnetic field in conjunction with cryogenic processing and a magnesium alloy bone screw product. The method specifically comprises the following steps: preparing an ingot, extruding the ingot into a magnesium-zinc-manganese alloy bar, performing room-temperature rotary forging under alternating magnetic field for plastic deformation, wherein the strength and hardness of the magnesium-zinc-manganese alloy are improved by the work hardening effect of magnesium alloy at room temperature, and meanwhile the microstructure is regulated; additionally, via the former and later cryogenic processing, the grain size and grain orientation uniformity can be effectively regulated in the magnesium alloy microstructure, and the magnesium alloy is effectively improved in plastic deformation ability, strength and corrosion resistance, and finally a magnesium alloy bone screw bar is obtained with excellent comprehensive properties in mechanical properties, corrosion resistance and biocompatibility, which can be mechanically processed into a magnesium alloy bone screw product.

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Patent Owner(s)

Patent OwnerAddress
HUA RONG KE CHUANG BIOTECHNOLOGY (TIA JIN) CO LTDB1-105 NO 80 HAIYUN STREET TIAN JIN ECONOMIC AND TECHNOLOGICAL DEVELOPMENT ZONE TIAN JIN 300453

International Classification(s)

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  • 2023 Application Filing Year
  • B21J Class
  • 58 Applications Filed
  • 19 Patents Issued To-Date
  • 32.76 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2023202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Liu, Lina Tianjin, CN 34 95

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  • B21J Class
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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges42002.557.51012.51517.52022.52527.53032.53537.54042.545

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