Method of manufacturing stephanoporate metal honeycomb structure member
A honeycomb structure and porous metal technology, which is applied in the field of metal powder manufacturing powder metallurgy parts, can solve the problems of installation, clamping, cleaning and maintenance troubles, difficulty in adjusting the range of filtration accuracy, and difficulty in manufacturing, etc. The effect of high utilization
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Embodiment 1
[0015] A method for preparing a porous metal honeycomb structure. When the alloy powder used in the method is chromium-nickel or chromium-nickel-molybdenum stainless steel, the alloy powder prepared in a weight ratio of 80:20 and a water-based binder are placed in the Pre-mix in the mixer for 30 minutes, then knead on the mixer for 100-120 minutes to make a dough, put it into the extrusion die, and extrude under the extrusion force of <100MPa. Drying and vacuum sintering at a temperature of 1200-1350°C can make a porous metal honeycomb structure; the weight formula of the binder is 10% polyvinyl alcohol, 20% carboxymethyl cellulose, 4% glycerin, Ethanol 3%, water 63%.
Embodiment 2
[0017] A method for preparing a porous metal honeycomb structure. When the alloy powder used in the method is tin bronze, 6-6-3 bronze, or iron-copper, the alloy powder prepared in a weight ratio of 60:40 and water-based adhesive The binder is pre-mixed in the mixer for 30 minutes, and then kneaded on the mixer for 100-120 minutes to make a dough, put it into the extrusion die, and extrude under the extrusion force of <100MPa. Drying at a temperature of 750-850°C and sintering in a protective atmosphere of ammonia decomposition at a temperature of 750-850°C can make a porous metal honeycomb structure; the weight formula of the binder is 15% polyvinyl alcohol, carboxymethyl fiber Vegetable 15%, glycerin 6%, ethanol 0.5%, water 63.5%.
Embodiment 3
[0019] A method for preparing a porous metal honeycomb structure. When the alloy powder used in the method is an iron-chromium-aluminum heat-resistant alloy, the alloy powder prepared in a weight ratio of 90:10 and a water-based binder are mixed in a mixer Pre-mixed for 30 minutes, then kneaded on a mixer for 100-120 minutes to make a dough, put it into an extrusion die, and extrude it under an extrusion force of 2 (dew point-60 ℃) atmosphere sintering, can make porous metal honeycomb structure; The weight formula of described binding agent is polyvinyl alcohol 5%, carboxymethyl cellulose 25%, glycerin 1%, ethanol 5% %, water 64%.
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