金属薄膜的流延工艺研究  

Research on tape-casting technology of metal thin film

作　　者：曹卜元 方宇飞 王妍 蒲博玮 任尚远 李荣 CAO Boyuan;FANG Yufei;WANG Yan;PU Bowei;REN Shangyuan;LI Rong(National Local Joint Engineering Research Center for Filtration and Separation Technology,Xi'an 710201,China;Western BaoDe Technologies Co.,Ltd,Xi'an 710201,China;Shaanxi Filtration and Separation En‐gineering Research Center,Xi'an 710201,China)

机构地区：[1]过滤与分离技术国家地方联合工程研究中心,陕西西安710201 [2]西部宝德科技股份有限公司,陕西西安710201 [3]陕西省过滤分离工程研究中心,陕西西安710201

出　　处：《粉末冶金工业》2024年第1期89-93,110,共6页Powder Metallurgy Industry

摘　　要：流延成形方法应用于金属薄膜的生产中,由于金属粉末自身比重大以及流延工艺的制备过程复杂,金属薄膜易变形开裂。实验研究了金属流延浆料中各添加剂含量对金属薄膜成形过程和烧结后性能的影响。结果表明:粘结剂含量与粘度对金属薄膜性能起决定性影响,加入10%含量的造孔剂,有效控制了颗粒团聚现象,膜层孔径分布集中,气体透过率提升。实验验证了固含量对流延坯片均匀性的影响;固含量过低,易造成膜层表面开裂,厚度不均匀,烧结后大孔缺陷多,强度差;而固含量过高,会导致膜层气体透过率下降,同时,膜层的柔韧性也会降低。造孔剂可以显著改善膜层表面团聚现象,提高颗粒之间的结合力。The tape casting method is applied to the production of metal films.Due to the large specific gravity of the metal powder and the complicated preparation process of the casting process,the metal film is easily deformed and cracked.In this paper,the influence of the content of various additives in the metal casting slurry on the form-ing process and sintering properties of the metal film was studied.The result shows that the binder content and vis-cosity have a decisive influence on the performance of the metal film.Adding 10%pore-forming agent can effec-tively control the phenomenon of particle agglomeration,membrane pore size distribution is concentrated,the gas transmission rate increases.The influence of solid content on the uniformity of the slab is verified.The solid con-tent is too low can cause surface cracking,uneven thickness,many defects and poor strength after sintering.And the solid content is too high,will lead to the film layer gas permeability decline,at the same time,the flexibility of the film layer will also be reduced.Pore forming material can significantly improve the surface agglomeration phe-nomenon of membrane layer and improve the binding force between particles.

关 键 词：金属薄膜 粉末 粘度 气孔率 柔韧性 

分 类 号：TG14[一般工业技术—材料科学与工程] TB383.2[金属学及工艺—金属材料]