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| The influence of pore forming agent content on the
properties of porous metal materials |
| WANG Yaohui1，CHENG Kai2，CAO Buyuan2，WANG Ye2 |
| Western Baode Technologies Co.，Ltd，Xi An 710201，China |
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Abstract Using 316L stainless steel powder and PMMA powder as raw materials, porous stainless steel plate was
prepared by powder sintering method. The pore diameter, permeability coefficient and microstructure of the stainless
steel plate were characterized by SEM、bubble pressure aperture distributing instrument and air permeability
measuring instrument. The results show that with the decrease of PMMA content, the thickness of porous metal sintering
plate decreases, the distance between metal particles decreases after sintering, and the sintered trap is easier
to be formed. The best sintering temperature is 1 100 ℃. When the PMMA content is the lowest, the ventilation
value reaches the minimum value of 63 m3/(m2 ·kpa·h). and the average pore diameter decreases to 2.79 μm.
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Received: 09 November 2020
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2022, Vol. 32 
