A manufacturing method of shelling hammer for aluminum electrolytic cell
A manufacturing method and technology for shelling hammer heads, which are applied in the direction of manufacturing tools, furnaces, heat treatment equipment, etc., can solve the problems of lower price ratio of hammer heads, low bonding strength, and falling off of hammer heads, so as to reduce cracks in the surfacing layer and reduce the resistance of the surfacing layer. Good corrosion and wear resistance, the effect of slowing down the cooling rate
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Embodiment 1
[0019] Embodiment 1: Process the forging process into a Q235 steel hammer base of φ95mm*300mm for pretreatment. First, use mechanical grinding to remove the oil stains on the surface of the workpiece during rolling, cutting, stamping, polishing, etc., and clean the surface of the base. Rust, scale and other dirt that are not conducive to surfacing treatment to obtain a clean surface. Then fully preheat, the preheating temperature is 600-700°C, and the preheating time is about 1 hour to ensure that the inside and outside are thoroughly heated. Large-scale gantry-type CNC plasma surfacing machine is adopted.
[0020] The weight ratio of each component of the iron-based self-fluxing alloy is (Wt%): C1.8, Cr18, Ni6.0, Mo1.0, Mn1.0, Si2.5, and the rest of Fe. The plasma powder surfacing process is adopted, and the fusion interface is formed between the base material and the surfacing material, and the bonding strength is high; the thickness of the surfacing layer is about 2~3mm, t...
Embodiment 2
[0022] Embodiment 2: The forging process is processed into a Q235 steel hammer base of φ95mm*300mm for pretreatment. First, the oil stains produced on the surface of the workpiece during rolling, cutting, stamping, polishing, etc. should be removed by mechanical grinding, and the surface of the base should be cleaned. Rust, scale and other dirt that are not conducive to surfacing treatment to obtain a clean surface. Then fully preheat, the preheating temperature is 600-700°C, and the preheating time is about 1 hour to ensure that the inside and outside are thoroughly heated. The test uses a large-scale gantry-type CNC plasma surfacing machine.
[0023] The weight ratio of each component of the iron-based self-fluxing alloy is (Wt%): C1.8, Cr12, Ni1.0, Mo0.5, Mn1.0, Si1.0, WC20, Fe balance. Plasma powder surfacing process is adopted to form a fusion interface between the base material and the surfacing material, and the bonding strength is high; the thickness of the surfacing ...
Embodiment 3
[0025] Example 3: Process the forging process into a Q235 steel hammer base of φ95mm*300mm for pretreatment, first use mechanical grinding to remove the oil stains on the surface of the workpiece during rolling, cutting, stamping, polishing, etc., and clean the surface of the base Rust, scale and other dirt that are not conducive to surfacing treatment to obtain a clean surface. Then fully preheat, the preheating temperature is 600-700°C, and the preheating time is about 1 hour to ensure that the inside and outside are thoroughly heated. The test uses a large-scale gantry-type CNC plasma surfacing machine.
[0026] The weight ratio of each component of the iron-based self-fluxing alloy is (Wt%): C2.2, Cr15, Ni0.5, Mo0.5, Mn1.0, Si1.0, WC30, steel bonded carbide powder content 5 %, Fe balance. Plasma powder surfacing process is adopted to form a fusion interface between the base material and the surfacing material, and the bonding strength is high; the thickness of the surfac...
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Abstract
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