Copper-based and aluminum-based alloy lubricating, antifriction and wear-reducing material obtained by sintering and cladding method and preparation method thereof

Abstract

The invention discloses a copper-based and aluminum-based alloy lubricating, antifriction and wear-reducing material obtained through a sintering and cladding method and a preparation method thereof, and specifically relates to the technical fields of powder metallurgy, laser cladding, plasma cladding, spray welding, surfacing, cold welding, argon arc cladding and the like. According to the material, low-carbon steel, stainless steel plates, low-alloy steel and other plates are selected as base materials, and a water flow atomization method, an air flow atomization method, a plasma rotary atomization method, an electrolytic method, a mechanical alloying method and a mechanical crushing method are adopted. According to the material, a layer of copper alloy powder or aluminum alloy powder is used for covering a substrate steel plate by burning, and laser cladding, spray welding, surfacing, cold welding, argon shielded arc cladding, and plasma cladding technologies are used for laser cladding, spray welding, surfacing, cold welding, plasma cladding and argon arc cladding of the burnt steel-copper alloy plate or steel-aluminum alloy plate. The obtained steel-copper alloy plate or steel-aluminum alloy plate is subjected to the processes of rolling, stress relief annealing, cladding, rolling and the like.

Description

technical field [0001] The invention relates to the technical field of powder metallurgy, in particular to a copper-based and aluminum-based alloy lubricating anti-friction and anti-wear material obtained by a sintering cladding method and a preparation method thereof. Background technique [0002] Since the industrial revolution, the large-scale use of fossil fuels has caused greenhouse gas emissions, global climate change, heavy rain, large-scale flood disasters, forest fires caused by extreme high temperature and drought, and other natural disasters have occurred frequently. It is imminent to reduce greenhouse gas emissions. The friction and wear of various types of mechanical equipment accounts for a large proportion of the total energy consumption. Reducing friction and wear in mechanical equipment plays an important role in improving energy efficiency, energy saving and emission reduction; [0003] At present, when the copper-steel alloy anti-friction, lubrication and ...

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Problems solved by technology

[0003] At present, when the copper-steel alloy anti-friction, lubrication and wear-resisting materials are prepared by the traditional powder-coating sintering and rolling method, only solid-phase sintering occurs between copper alloy powder particles and no liquid-phase sintering occurs, so the prepared The copper alloy layer of the steel-copper alloy has a high metallographic porosity due to insufficient shrinkage, resulting in low strength and fatigue resistance of the material, and poor anti-friction and anti-wear effects. Obtain steel-aluminum composite anti-friction and anti-friction lubricating materials, there is a problem of low bonding strength between the aluminum alloy of the steel-aluminum composite material and the substrate steel back; therefore, we propose a copper-based alloy prepared by powder metallurgy and Preparation method of aluminum-based alloy lubricating anti-friction and anti-friction lubricating composite material

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