Active argon arc cladding Ni-based aluminum oxide-titanium diboride compound coating of coal ash and preparation method

A technology of argon arc cladding and composite coating, which is applied in coating, metal material coating process, etc., can solve problems such as increased overheating tendency, repeated heating of the cladding layer, cracks in the cladding layer, etc., and achieves cost reduction and economical Environmental protection application, the effect of improving hardness

Inactive Publication Date: 2015-05-20
LIAONING TECHNICAL UNIVERSITY +1
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  • Application Information

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Problems solved by technology

Therefore, the traditional argon arc cladding technology generally adopts the "small current, low voltage, thin layer multiple times" cladding method to prepare the cladding layer, but this method will cause the cladding layer to be heated repeatedly, and the overheating tendency will increase. Severe cracks or peeling inside

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  • Active argon arc cladding Ni-based aluminum oxide-titanium diboride compound coating of coal ash and preparation method
  • Active argon arc cladding Ni-based aluminum oxide-titanium diboride compound coating of coal ash and preparation method
  • Active argon arc cladding Ni-based aluminum oxide-titanium diboride compound coating of coal ash and preparation method

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Embodiment Construction

[0025] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] The invention provides a kind of fly ash active argon arc cladding Ni-based Al 2 o 3 -TiB 2 Composite coating and preparation method thereof, described preparation method comprises the steps:

[0027] The first step is the pretreatment of the matrix material;

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Abstract

The invention discloses an active argon arc cladding Ni-based Al2O3-TiB2 compound coating of coal ash and a preparation method, and belongs to the technical field of tungsten inert gas tig welding. According to the invention, an A-TIG welding compound activating agent is prepared by taking high-alumina fly ash as a main raw material, and moreover, the compound activating agent is applied to an argon arc cladding process to prepare the active argon arc cladding Ni-based Al2O3-TiB2 compound coating on the surface of a Q235 steel matrix, so that the weld penetration is enlarged under an isosteric heat input condition, the surface hardness, wear resistance and corrosion resistance of the material are improved, and the service lives of mechanical parts are prolonged.

Description

technical field [0001] The invention belongs to the technical field of tungsten argon arc welding, and in particular relates to a kind of fly ash active argon arc cladding Ni-based Al 2 o 3 -TiB 2 Composite coating and method for its preparation. Background technique [0002] Active tungsten argon arc welding (referred to as A-TIG welding) technology is a rapidly developing and widely used welding technology in the welding industry at home and abroad. This technology can be used for welding almost all metal materials and can obtain high-quality welded joints , The weld penetration can reach 2 to 3 times that of traditional argon tungsten arc welding. At present, A-TIG welding has been widely used in aerospace, petrochemical, mechanical ship and transportation and other fields. The research on activator formula and welding process is the core of A-TIG welding, but most of the relevant research institutions at home and abroad have patented the composition and formula of ac...

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Application Information

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IPC IPC(8): C23C24/10
CPCC23C24/103
Inventor 董世知马壮
Owner LIAONING TECHNICAL UNIVERSITY
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