TheQianmiqiaoburied-hilloil&gasreservoirlocatedinDagangoilareaofBobalBay,possesses60squarekilometersofoil-bearingareawithmorethan100-meterthicknessofoilreservoi
TechnologyandDevelopmentTrendsofChina'sViscousCrudeSurfaceProductionFacilitiesMiaoChengwu(President,ChinaPetroleum,Planning&E...
水轮机转轮下环的材料为马氏体不锈钢,下环是水轮机中技术含量最高,制造难度最大,制造周期最长的部件。由于下环吨位重、直径大、壁薄,在加工过程中极易变形,通过多方面的分析与确认,下环防变形的措施有装卡防变形、加工过程热应力释放放变形、吊运防变形、翻转防变形等。