造孔剂含量对粉末轧制制备多孔镍板性能的影响  

Effect of pore forming agent content on porous nickel plate prepared by powder rolling

作　　者：尹全中 李小强[1] 梁永仁 李荣 任尚远 康志新[1] YIN Quanzhong;LI Xiaoqiang;LIANG Yongren;LI Rong;REN Shangyuan;KANG Zhixin(School of Automotive and Mechanical Engineering,South China University of Technology,Guangzhou 510640,China;Western Baode Technologies Co.,Ltd,Xi'an 710201,China)

机构地区：[1]华南理工大学机械与汽车工程学院,广州510640 [2]西部宝德科技股份有限公司,陕西西安710201

出　　处：《粉末冶金工业》2024年第3期34-39,共6页Powder Metallurgy Industry

摘　　要：实验以碳酸氢铵(NH4HCO3)为造孔剂,通过粉末轧制技术制备了孔隙率为22.2%~52.4%的多孔镍板。研究了造孔剂含量对多孔镍板组织性能的影响。结果表明:随着造孔剂含量的增加,多孔镍板的孔隙率逐渐增大,相对透气系数也逐渐增大,而抗拉强度逐渐降低。当造孔剂含量为20%时,多孔镍板的孔隙率为40.7%,相对透气系数为10.79 m^(3)/(h·kPa·m^(2)),抗拉强度为135 MPa;当造孔剂含量为40%时,多孔镍板的孔隙率为52.4%,相对透气系数为41 m^(3)/(h·kPa·m^(2)),抗拉强度降低至51 MPa。Porous nickel plates with porosity of 22.2%-52.4%were prepared by powder rolling technology using ammonium bicarbonate(NH,HCO,)as pore-making agent.The effect of pore-forming agent content on microstruc-ture and properties of porous nickel plate was studied.The results show that with the increase of pore-forming agent content,the porosity of porous nickel plate increases gradually,the relative permeability increases gradually,and the tensile strength decreases gradually.When the content of pore-forming agent is 20%,the porosity of porous nickel plate is 40.7%,the relative permeability coefficient is 10.79 m^(3)/(h·kPa·m^(2)),and the tensile strength is 135 MPa.When the content of pore-forming agent is 40%,the porosity of porous nickel plate is 52.4%,the relative permeability coefficient is 41.0 m^(3)/(h·kPa·m^(2)),and the tensile strength is reduced to 51 MPa.

关 键 词：粉末轧制技术 造孔剂含量 多孔镍板 组织性能 

分 类 号：TG335[金属学及工艺—金属压力加工]