论文部分内容阅读
我厂目前使用的中型悬辊管模((?)1050～1400共6个规格)有50套。小型悬辊管模((?)700～900)有40套。中型管模已使用8年多,端环受到不同程度磨损,严重的,内径增大十几毫米。这种端环如果继续使用,将严重影响水泥管的外观几何尺寸和内在质量。例如:使管壁厚度减薄;影响骨架内保护厚度;易造成骨架露筋和断筋;磨损后的端环两侧形成半径约为10毫米的磨损坡口,使管口产生飞边等等。针对上述情况,我们于1987年先后采用
At present, there are 50 sets of medium-sized suspension pipe dies ((?) 1050~1400 total 6 specifications). There are 40 sets of small suspension roller moulds ((?) 700-900). The medium-sized tube mold has been used for more than 8 years. The end rings have been worn to varying degrees, and the internal diameter has increased by more than ten millimeters. If this type of end ring continues to be used, it will seriously affect the apparent geometry and inherent quality of the cement pipe. For example: to reduce the thickness of the pipe wall; to affect the thickness of the protection within the framework; easy to cause skeleton dewring and broken ribs; worn edges on both sides of the end ring form a worn groove with a radius of about 10 mm, so that the nozzle has flashes, etc. . In response to the above situation, we adopted it in 1987.