摘要
采用一定比例的粘结剂并尝试利用流动温压成形结合熔渗制备射孔弹药型罩。通过改变钨(W)骨架中Cu粉类型(雾化Cu粉,电解Cu粉,超细Cu粉)、粘结剂添加量和成形温度,考察不同工艺参数对杯状试样的密度分布影响,获得流动温压成形药型罩钨骨架的最佳工艺。结果表明,添加了超细Cu粉和35%(体积分数)粘结剂的混合粉末在55℃时成形的钨骨架孔隙分布最均匀,该骨架在1 200℃熔渗30 min后,密度分布均匀,整体密度达到15.4 g/cm3(相对密度99.0%)。通过该工艺制备的127型射孔弹在大庆检测中心检测,API RP19B标准混泥土靶穿深达到1 433 mm。
To near-net-form complex parts has drawn extensive interest in the field of powder metallurgy, in the present paper, W70Cu materials with a complex liner shape manufactured by a novel process （warm flow compaction ＋ sintering filtration） were studied systematically. The effects of the type of copper powder （atomization copper powder, electrolytic copper powder and ultra-fine grained copper powder）, content of the binder, and pressing temperature on porosity distribution were investigated. It was shown that the W-skeleton with a homogeneous porosity distribution can be obtained at 55℃, as the ultra-fine copper powder with slick and regular surface was used as a copper source and 35 vol% binder was dispersed in the powder composite. As a result, a homogeneous density distribution and a general density of 15.4 g/era3 （R. D. 99.0%） can be achieved by infiltrating at 1 200℃ for 30 rain. The SDP127 jet which is manufactured by this technique can penetrate 1 433 mm in RP19B target.
出处
《测井技术》
CAS
CSCD
北大核心
2010年第4期403-407,共5页
Well Logging Technology
关键词
石油射孔弹
药型罩
温态流动
成形
熔渗
petroluem perforating charge, linershape, warm flow compaction, shaping, infiltration
