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水电部杭州饥械设计研究所混凝土机械室设计、水电十二局机械厂制造的我国首套φ1600钢筒芯模于1990年11月上旬在山东电力线路器材厂安装并一次试车成功,已卷制出我国第一批φ1.6m螺旋钢筒。试车结果表明,该芯模质量达到美国同类型产品的水平。φ1600钢筒芯模是卷制φ1.6m钢筒混凝土压力管内衬的螺旋钢筒的模具,与从美国引进的钢筒成型机相配套,其直径为1.7m,长9m,重量为7t。整套模具的动作由气动控制。该设备的研制成功,不仅填补了我国在该项的空白,而且还节省了外汇,并使PCCP管的生产设备国产化能力又提高了一步。
The first set of φ1600 steel mandrel manufactured by the Department of Water and Electricity, Hangzhou Institute of Husbandry Design and the 12th Bureau of Machinery and Hydropower was installed in Shandong Electric Power Line Equipment Factory in early November 1990 and successfully tested. Out of China’s first φ1.6m spiral steel cylinder. The test results show that the quality of the mandrel reaches the level of the same type of product in the United States. The φ1600 steel mandrel is a spiral steel tube moulded with a φ1.6m steel tube concrete pressure pipe lining. It is matched with the steel tube forming machine introduced from the United States. It has a diameter of 1.7m, a length of 9m and a weight of 7t. The entire mold movement is controlled pneumatically. The successful development of this equipment has not only filled our country’s gap in this item, but also saved foreign exchange and increased the localization capability of the production equipment of PCCP.