装炉方式对铁基粉末冶金阀板烧结变形的影响  

Influence of loading mode on the sintering deformation of iron-based powder metallurgy valve plate

作　　者：梁翠[1,2] 高鹤森[2] 王贤瑞[1,2] 游航[1,2] 徐金富[1,2] 徐胜华 赖邦华 

机构地区：[1]华东理工大学材料科学与工程学院,上海200237 [2]宁波工程学院材料工艺研究所,浙江宁波315016 [3]宁波宁江粉末冶金有限公司,浙江宁波315192

出　　处：《兵器材料科学与工程》2011年第4期64-66,共3页Ordnance Material Science and Engineering

摘　　要：采用粉末冶金法批量生产用于制冷压缩机的铁基阀板,研究其在不同装炉方式下烧结、整形工序中平面度的变化情况。结果表明:阀板最佳摆放顺序为凹槽相对并彼此错开,其平面度分别为,烧结后0.14mm,整形后0.07mm;最佳摆放位置为中间放置,最佳装炉量为单排装炉,其平面度均为,烧结后0.23mm,整形后0.06mm;最佳装炉方式为阀板入炉时只装一排,放在炉子正中间,板与板之间的凹槽相对并彼此错开摆放,经此方式烧结后的阀板平面度为0.14mm,整形后可减小到0.07mm,与普通同类产品相比平面度减小30%左右。The iron-based valve plates used in refrigeration compressor were massly produced by powder metallurgy. The variation of flatness of the valve plates in sintering and shaping process with different method of loading was studied. The results show that the best order to place valve plate is that valve plate grooves are placed in opposite direction and stagger each other, the flatness of valve plate after sintering is 0.14 mm, the flatness of valve plate after shaping is 0.07 mm; The optimal placement is in the middle of furnace, the best loading capacity is to load in a single row, the best flatness after sintering is 0.23mm, the flatness of vane plate after shaping is 0.06 ram; the best method of loading is that the valve plates are placed in the middle of furnace ~u a single row. The flatness of the valve plate is 0.14 mm after sintering, and 0.07 mm after shaping when the best loading mode is used. Compared with the similar products, the flatness decreases about 30%.

关 键 词：粉末冶金 阀板 烧结变形 装炉方式 

分 类 号：TF124[冶金工程—粉末冶金]