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Preparation method for multilayer dissimilar metal composite ultra-thin strip

A dissimilar metal and ultra-thin strip technology, which is applied in metal rolling, roll speed control, etc., can solve problems not involving dissimilar metal double-layer and multi-layer composite material ultra-thin strips, and meet the requirements of low equipment capacity and high thickness. Uniformity, the effect of increasing the thinning rate

Active Publication Date: 2015-12-23
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned preparation methods of metal composite thin strips, it can be seen that although some key technologies have reached maturity, none of them involve the preparation of dissimilar metal double-layer and multi-layer composite ultra-thin strips by cold rolling process.

Method used

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  • Preparation method for multilayer dissimilar metal composite ultra-thin strip

Examples

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Effect test

Embodiment 1

[0028] To prepare a 0.01mm thick multi-layer titanium / aluminum / copper composite ultra-thin strip, proceed according to the following process steps:

[0029] (1) Prepare copper, aluminum, and titanium with thicknesses of 2, 15, and 2 mm respectively, and use synchronous cold rolling process to reduce the thickness of copper, aluminum, and titanium to 0.3 mm, 0.3 mm, and 0.4 mm respectively after 4 to 10 passes. Synchronous cold rolling process parameters are: rolling speed 60~250mm / s, pass reduction rate 10~30%, total deformation rate ≥ 80%;

[0030] (2) Grind the upper and lower surfaces of copper, aluminum, and titanium thin strips, rinse the upper and lower surfaces of the thin metal strips with alcohol, and then use ultrasonic vibration for further cleaning. The time is 5~10min, put it in the air to dry;

[0031] (3) Select one group of the three metal thin strips in step (2) in the order of titanium, aluminum, and copper, and attach the upper and lower surfaces closely to...

Embodiment 2

[0038] To prepare a 0.02mm thick multi-layer titanium / AZ31B magnesium alloy / aluminum composite ultra-thin strip, proceed according to the following process steps:

[0039] (1) Prepare titanium, AZ31B magnesium alloy, and aluminum with thicknesses of 2, 2, and 4mm respectively, and adopt synchronous cold rolling process to reduce the thickness of titanium, AZ31B magnesium alloy, and aluminum to 0.3~0.6mm respectively after 10 passes, and synchronously cold-roll The rolling process parameters are: rolling speed 60~250mm / s, pass reduction rate 10~30%, total deformation rate ≥ 80%;

[0040] (2) Grind the upper and lower surfaces of titanium, AZ31B magnesium alloy, and aluminum thin strips, rinse the upper and lower surfaces of the thin metal strips with alcohol, and then use ultrasonic vibration for further cleaning. The parameters are set to ultrasonic water temperature 20~40°C , the cleaning time is 5~10min, and air-dried in the air;

[0041] (3) Select two groups of the three ...

Embodiment 3

[0048] To prepare a 0.02mm thick multi-layer titanium / aluminum composite extremely thin strip, proceed according to the following process steps:

[0049] (1) Prepare an aluminum plate with a thickness of 4mm and a titanium plate with a thickness of 2mm, and use the synchronous cold rolling process to reduce the thickness of aluminum and titanium to 0.5mm respectively after 4-8 passes. The parameters of the synchronous cold rolling process are: rolling speed 60~ 250mm / s, pass reduction rate 10~30%, total deformation rate ≥ 80%;

[0050] (2) Grind the upper and lower surfaces of the aluminum and titanium thin strips, wash the remaining grit and oil on the upper and lower surfaces of the thin metal strips with alcohol, and then use ultrasonic vibration for further cleaning. 5~10min, place in the air to dry;

[0051] (3) Select 5 groups of the two metal thin strips in step (2) in the order of titanium and aluminum, closely fit the upper and lower surfaces, and punch holes at the ...

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Abstract

The invention provides a preparation method for a multilayer dissimilar metal composite ultra-thin strip. The preparation method includes the process steps that (1) different metal materials are synchronously cold-rolled for first thinning; (2) metal thin strips are polished and cleaned; (3) the upper surfaces and lower surfaces of two or more metal thin strips are closely attached; (4) two-roll synchronous cold rolling is conducted on dissimilar metal combined strips; (5) the upper surfaces and lower surfaces of 2-10 dissimilar metal thin strips subjected to preliminary combination are closely attached and then the procedures of the step (1) to the step (4) are repeated 2-10 times; (6) reversible four-roll synchronous cold rolling is conducted on a multilayer dissimilar metal composite thin strip; and (7) reversible four-roll asynchronous cold rolling is conducted on the multilayer dissimilar metal composite thin strip, and the multilayer dissimilar metal composite ultra-thin strip with the thickness being 0.01 mm-0.02 mm is obtained. According to the method, the selection range of the metal materials is wide, the requirement for equipment capacity is low, and the surface quality of the ultra-thin strip can be improved remarkably; besides, production resources are saved, production cost is reduced, and the method is suitable for large-scale industrial production.

Description

technical field [0001] The invention belongs to the technical field of metal materials, and in particular relates to a preparation method of a multi-layer dissimilar metal composite ultra-thin strip. Background technique [0002] Metal composite material is a new type of composite material prepared by using composite technology to make two or more metals with different physical, chemical and mechanical properties realize firm metallurgy on the interface. Metal composite materials combine the advantages of each component, which can significantly improve the mechanical properties, thermoelectric properties, magnetism, formability, weldability, corrosion resistance and many other properties of the material, and are widely used in automobiles, aviation, aerospace, energy, electric power , communications, etc. [0003] Traditional composite metal preparation technologies mainly include explosive cladding, rolling cladding, and explosion + rolling cladding. Explosive compounding...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/40B21B37/46
Inventor 刘立忠宋孟于庆波刘相华孙祥坤缪书昆
Owner NORTHEASTERN UNIV
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