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Non-spark aluminum bronze powder for laser cladding, preparation method and cladding method

A technology of laser cladding and aluminum bronze, applied in coating, metal material coating process, etc., can solve problems such as gas explosion hazards, achieve the effects of preventing safety hazards, improving comprehensive performance, and preventing high-energy sparks

Active Publication Date: 2015-11-25
山西玉华再制造科技有限公司 +2
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Problems solved by technology

[0005] The purpose of the present invention is to provide a non-sparking aluminum bronze powder for laser cladding, a preparation method and a cladding method. The present invention can provide aluminum bronze powder for laser cladding, so that the alloy layer after cladding does not produce dangerous high-energy Sparks, so as to solve the hidden danger of gas explosion caused by high-energy sparks generated by friction in coal mine ventilation fans

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  • Non-spark aluminum bronze powder for laser cladding, preparation method and cladding method
  • Non-spark aluminum bronze powder for laser cladding, preparation method and cladding method
  • Non-spark aluminum bronze powder for laser cladding, preparation method and cladding method

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Embodiment Construction

[0049] The first embodiment of the present invention provides a non-sparking aluminum bronze powder for laser cladding, the aluminum bronze powder comprising:

[0050] C<0.03%;

[0051] Si<0.05%;

[0052] Mn<0.10%;

[0053] S<0.006%;

[0054] Cr<0.5%;

[0055] Ni<0.5%;

[0056] Cu, 83% to 87%;

[0057] Al, 6%~10%;

[0058] and Fe<6.5%.

[0059]The aluminum bronze powder provided by the present invention is used for laser cladding. Aluminum bronze has better mechanical properties than brass and tin bronze, good fluidity in liquid state, small tendency of intragranular segregation and porosity, dense casting, corrosion resistance, Cold-resistant, wear-resistant, no sparks when impacted. Therefore, after the aluminum bronze powder of the present invention is used as the laser cladding on the surface of the impeller barrel of the coal mine ventilation fan, the alloy layer after cladding will not produce dangerous high-energy sparks, thereby solving the hidden danger of gas...

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Abstract

The invention provides non-spark aluminum bronze powder for laser cladding, a preparation method and a cladding method. No dangerous high-energy spark is generated to an alloy layer clad with aluminum bronze powder, and therefore the situation that high-energy sparks are generated by friction of a coal mine ventilation fan to cause gas explosion hazards is avoided. The non-spark aluminum bronze powder for laser cladding comprises C smaller than 0.03%, Si smaller than 0.05%, Mn smaller than 0.10%, S smaller than 0.006%, Cr smaller than 0.5%, Ni smaller than 0.5%, 83%-87% of Cu, 6%-10% of Al and Fe smaller than 6.5%. The method for cladding the non-spark alloy layer with aluminum bronze through lasers is used for replacing a traditional brass riveting process for the surface of an impeller barrel, a non-spark protection layer combined with base material alloy is used for replacing a mechanically-combined non-spark layer, and potential safety hazards possibly caused by failures of a copper riveting protection layer are avoided.

Description

technical field [0001] The invention relates to laser cladding technology and remanufacturing technology, in particular to non-spark aluminum bronze powder for laser cladding, a powder preparation method and a cladding method. Background technique [0002] Laser cladding technology refers to using the high energy density of the laser source to melt the powder, wire and other cladding materials covering the surface of the substrate together with the surface layer of the substrate to make them fuse with each other. After cooling, the substrate and the cladding alloy layer The combination between them is a metallurgical combination. Laser cladding has the advantages of small heat-affected zone, shallow melting depth, and low dilution rate of the cladding layer, and can cladding a functional layer with specific properties on the surface of the workpiece to be repaired or strengthened according to requirements, such as wear resistance, high temperature resistance, and Corrosion ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/01C23C24/10B22F1/00
Inventor 徐广源赵兵兵段虎明赵慧峰
Owner 山西玉华再制造科技有限公司
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