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A resistance welding method for amorphous alloy

An amorphous alloy, resistance welding technology, applied in resistance welding equipment, welding equipment, metal processing equipment and other directions, can solve the problems that amorphous alloys are difficult to popularize and apply in depth, difficult to realize bolt and nut structure, and the connection strength cannot meet production. , to achieve a wide range of welding parameters selection, easy mechanization and automation, small thermal deformation effect

Active Publication Date: 2016-04-20
DONGGUAN PROMETAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the prior art, when welding amorphous alloys, due to the unreasonable welding method, the crystallization of amorphous alloys often occurs, which makes it difficult to promote the application of amorphous alloys in depth
[0004] Because it is difficult to realize the tapping process on amorphous alloy materials, it is difficult to realize the structure of bolts and nuts on amorphous alloy products. Moreover, if adhesives are used to bond bolts and nuts to amorphous products, the connection strength does not meet the needs of production

Method used

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  • A resistance welding method for amorphous alloy
  • A resistance welding method for amorphous alloy
  • A resistance welding method for amorphous alloy

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Embodiment 1

[0045] In this embodiment, the welding base material is a zirconium-based amorphous alloy Zr-Cu-Ni-Al-Nb, and the welding workpiece 1 is a zirconium workpiece.

[0046] See figure 1 . In the resistance welding method of an amorphous alloy in this embodiment, the contact mode between the amorphous alloy and the welding workpiece is as follows: the amorphous alloy 1 is provided with a first plane, the welding workpiece 2 is provided with a second plane, and the amorphous alloy 1 is provided with a second plane. The first plane is in contact with the second plane of the welding workpiece 2 . Before welding, after the amorphous alloy 1 and the welding workpiece 2 are respectively connected to the electrode 3, the electrode 3 applies a pressure of 5 MPa and uses the resistance heat generated by the current to heat the amorphous alloy 1 and the welding workpiece 2 to above their respective melting points, and The TTT diagram is used as a reference, so that welder 2 and amorphous ...

Embodiment 2

[0048] In this embodiment, the welding base material is a zirconium-based amorphous alloy Zr-Cu-Ni-Al-Nb, and the welding workpiece 1 is a copper workpiece.

[0049] See figure 2. In the resistance welding method of an amorphous alloy in this embodiment, the contact mode of the amorphous alloy and the welding workpiece is as follows: the amorphous alloy 1 is provided with a first arc surface, the welding workpiece 2 is provided with a second arc surface, and the amorphous alloy 1 is provided with a second arc surface. The first arc surface of the crystal alloy 1 is in contact with the second arc surface of the welding workpiece 2 . Before welding, after the amorphous alloy 1 and the welding workpiece 2 are respectively connected to the electrode 3, the electrode 3 applies a pressure of 10 MPa and uses the resistance heat generated by the current to heat the amorphous alloy 1 and the welding workpiece 2 to their respective supercooled liquid phase regions , and based on the ...

Embodiment 3

[0051] In this embodiment, the welding base material is a zirconium-based amorphous alloy Zr-Cu-Ni-Al-Nb, and the welding workpiece 1 is a nickel workpiece.

[0052] See image 3 . In the resistance welding method of an amorphous alloy in this embodiment, the contact mode of the amorphous alloy and the welding workpiece is as follows: the amorphous alloy 1 is provided with an arc surface, the welding workpiece 2 is provided with a plane, and the arc of the amorphous alloy 1 The surface is in contact with the plane of the welding workpiece 2. Before welding, after the amorphous alloy 1 and the welding workpiece 2 are respectively connected to the electrode 3, the electrode 3 applies a pressure of 0.1 MPa and uses the resistance heat generated by the current to heat the amorphous alloy 1 and the welding workpiece 2 to above their respective melting points, and Based on the TTT diagram, welder 2 and amorphous alloy 1 are welded without crystallization reaction.

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Abstract

The invention relates to the technical field welding of amorphous alloy, in particular to a resistance welding method for the amorphous alloy. The resistance welding method for the amorphous alloy comprises the steps that the base metal amorphous alloy and welding workpieces are welded, the amorphous alloy and the welding workpieces make contact with each other, after the amorphous alloy and the welding workpieces are connected with electrodes respectively, the electrodes apply pressure, resistance heat generated through currents is utilized for heating the amorphous alloy and the welding workpieces to exceed respective melting points or to reach respective supercooled liquid phase regions, a TTT drawing serves as a standard, and the welding workpieces and the amorphous alloy are welded under the condition that a crystallization reaction does not occur. The welding workpieces contain one or more elements contained in the amorphous alloy. The welding method solves the problem that tapping is hard to carry out on the amorphous alloy, achieves joint of the amorphous alloy and the welding workpieces quite well, the intensity of the welding positions between the amorphous alloy and the welding workpieces is made to be quite high, and the welded amorphous alloy still maintains an amorphous structure.

Description

technical field [0001] The invention relates to the technical field of welding of amorphous alloys, in particular to a resistance welding method of amorphous alloys. Background technique [0002] Amorphous alloys have been widely used in the fields of electronics, machinery, and chemicals because of their excellent properties in terms of strength, hardness, toughness, wear resistance, corrosion resistance, soft magnetism, and superconductivity. However, although the amorphous alloy has the above-mentioned excellent characteristics, it has the disadvantages of being difficult to process and weld, which greatly limits its application range. Therefore, the welding of amorphous alloys has become a technical difficulty in expanding the application of amorphous alloys. [0003] In the prior art, when welding amorphous alloys, due to unreasonable welding methods, crystallization of amorphous alloys often occurs, which makes it difficult to popularize and apply amorphous alloys in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K11/16
CPCB23K11/16
Inventor 李奉珪
Owner DONGGUAN PROMETAL TECH CO LTD
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