Magnesium/titanium composite plate with large thickness ratios and gradient heterothermal rolling bonding method

Patent metadata

Field	Value
Publication number	US-2025041961-A1
Application number	US-202418612255-A
Country	US
Kind code	A1
Filing date	Mar 21, 2024
Priority date	Jul 31, 2023
Publication date	Feb 6, 2025
Grant date	—

Abstract

A magnesium/titanium composite plate with large thickness ratios and a gradient heterothermal rolling bonding method are provided by the present disclosure, relating to the technical field of rolling bonding plates. The method includes following steps: assembling blanks according to a sequence of titanium strip, transition layer foil and magnesium alloy plate to obtain a composite blank; carrying out induction heating treatment on one side of the titanium strip of the composite blank, then rolling, and carrying out heat treatment on a composite plate blank after rolling to obtain the magnesium/titanium composite plate with large thickness ratios; and a thickness ratio of the magnesium alloy plate to the titanium strip is greater than or equal to 20:1.

First claim

1 . A preparation method of a magnesium/titanium composite plate, comprising following steps:
assembling blanks according to a sequence of a titanium strip, a transition layer foil and a magnesium alloy plate to obtain a composite blank; carrying out an induction heating treatment on one side of the titanium strip of the composite blank, and then rolling, and carrying out a heat treatment on a composite plate blank after rolling to obtain the magnesium/titanium composite plate; a thickness ratio of the magnesium alloy plate to the titanium strip is greater than or equal to 20:1; the titanium strip, the transition layer foil and the magnesium alloy plate are respectively subjected to an annealing treatment before the assembling, specifically, the titanium strip is held at 900-1000° C. for 60-90 min, the transition layer foil is held at 300-400° C. for 5-15 min, and the magnesium alloy plate is held at 300-400° C. for 30-60 min; after the annealing treatment, the titanium strip, transition layer foil and magnesium alloy plate are further subjected to a step of surface treatment to remove oxide layers; the transition layer foil is aluminum foil, zinc foil or aluminum-zinc alloy foil; the induction heating treatment specifically comprises: placing an induction heating coil on one side of the titanium strip of the composite blank to make the induction heating coil parallel to the composite blank, adjusting a distance between the induction heating coil and the composite blank to be 3-10 mm, and setting a heating temperature of heating the composite blank to be 400-600° C. for 15-150 s; a rolling reduction is 15-20% and a rolling speed is 0.5-1.0 m/s; a heterothermal rolling device for the preparation method of the magnesium/titanium composite plate comprises a guide rail support, two sides of the guide rail support are fixedly connected with a two-roll mill, a coil lifting device is fixedly connected to a feeding side of the two-roll mill and a top surface of one end of the guide rail support, the guide rail support is located between bottom ends of the two-roll mill, and the feeding side of the two-roll mill is correspondingly arranged with a discharging end of the coil lifting device.

2 . The preparation method according to claim 1 , wherein the heat treatment specifically comprises holding at 400-500° C. for 60-90 min.

3 . The preparation method according to claim 1 , wherein a thickness of the magnesium alloy plate is 8-20 mm, a thickness of the titanium strip is 0.1-0.3 mm, and a thickness of the transition layer foil is 0.02-0.1 mm.

Assignees

• Univ Taiyuan Technology

Inventors

• Han Jianchao
• Wei Junxin
• Zhang Shuaishuai
• Yuan Zhenhao
• Zhang Yizhi
• Li Ran
• Liu Xinxin
• Jia Yi
• Wang Tao

Classifications

• B23K20/04 Primary

  by means of a rolling mill · CPC title

• B23K20/16

  with interposition of special material to facilitate connection of the parts, e.g. material for absorbing or producing gas · CPC title

• B23K20/2333

  one layer being aluminium, magnesium or beryllium · CPC title

• B23K2101/18

  Sheet panels · CPC title

• B23K2103/15

  Magnesium or alloys thereof · CPC title