Aluminum alloy and its composite material non-vacuum semi-solid state vibration-rheological connection method

A composite material and connection method technology, applied in the direction of welding equipment, welding equipment, non-electric welding equipment, etc., can solve the problems of unavoidable interface reaction, difficult brazing process, over-burning and erosion of base metal, etc., to overcome adverse consequences, Ideal engineering significance and low soldering temperature

A composite material and connection method technology, applied in the direction of welding equipment, welding equipment, non-electric welding equipment, etc., can solve the problems of unavoidable interface reaction, difficult brazing process, over-burning and erosion of base metal, etc., to overcome adverse consequences, Ideal engineering significance and low soldering temperature

CN1876302AInactive Publication Date: 2006-12-13HARBIN INST OF TECH
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  • Aluminum alloy and its composite material non-vacuum semi-solid state vibration-rheological connection method
  • Aluminum alloy and its composite material non-vacuum semi-solid state vibration-rheological connection method

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Embodiment Construction

[0048] The following examples describe the present invention in more detail:

[0049] combine figure 1 1. Install the aluminum-based composite material weldment 6 on the fixture 2 and place medium-temperature solder 5 such as Zn-Al on the two surfaces to be welded. The solder can be sheet-like, foil-shaped, coated or sprayed on the surface to be welded in advance. Heating the weldment through the high-frequency induction coil 4, the heating temperature is between 380-400°C, the heating temperature is controlled by the thermal couple 3, the middle layer solder is melted by heating, the vibration device 7 is started, the amplitude is 0.1-1.5mm, during the vibration process The medium temperature is constant, and the vibration time is 10-300 seconds. After the vibration stops, the temperature rises according to a certain heating rate, and is kept at a predetermined temperature to make the brazing filler metal dissolve a certain thickness of the base metal. The holding temperatur...

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Abstract

The invention provides a method for anti-vacuum vibrating theological connecting aluminum alloy and its complex material. The invention is characterized in that: clamping aluminum alloy or complex material weldment on chucking appliance and placing medium temperature welding material on two pre-welding surface, heating weldment with temperature being 380-400 Deg. C, starting vibrating device after welding material fusion, the amplitude is 0.1-0.5 mm. The temperature during vibrating process is the same, and the vibrating time is 10-300 seconds. The temperature is increased to 450-520 Deg. C after vibration, and it is kept for 1-5 minutes. Then starting vibrating device again, the amplitude is 0.1-1 mm, stopping after 3-60 seconds, forcing constant pressure with pressure range being between 0.1-2 Mpa, keeping temperature for 5-30 minutes, and cooling. The invention is characterized by low cost, high efficiency and quality.

Description

(1) Technical field [0001] The invention relates to an aluminum-based composite material welding method. (2) Background technology [0002] Aluminum matrix composites stand out for their outstanding advantages such as low cost, easy preparation, good wear resistance, strong designability of performance and functions, etc., and become the mainstream of research on metal matrix composites. It has broad application prospects in thermal and wear-resistant parts, and is considered to be one of the most promising composite materials in the 21st century. However, poor weldability has become a serious obstacle to the practical application of this material. In order to obtain breakthroughs in the connection of aluminum matrix composites, many scholars at home and abroad have so far performed fusion welding (such as TIG welding, laser welding, electron beam welding, etc.) and solid phase welding (such as diffusion welding, instant welding) of aluminum matrix composites. Liquid phase...

Claims

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Application Information

Patent Timeline
13 Dec 2006
Publication
CN1876302A
IPC
B23K1/06; B23K1/19; B23K20/10; B23K20/22
Inventors
闫久春; 许惠斌