回转窑领圈是支撑回转窑转动的重要部件,直径约四米,重十余吨,每个价值数万元,国内只有少数机械厂能够制作。由于它经常在高温重荷下运转,常易发生裂纹,甚至断裂,不能使用,只好另换新件,不仅耗资巨大,而且往往由于加工制造费事费时而耽误生产。因此,如何有效地修复断裂的领圈,长期以来已成为一项急待解决的技术问题。近几年来,第十一冶炼厂的工人和技术人员,在毛主席的“敢于革命、敢于胜利”的思想指导下,不断摸索经验,克服困难,终于找到了有效的修复方法。他们不仅能够焊补裂纹,而且能成功地把两个完全断裂的领圈焊接起来。修复的领圈经过三、五年的实际运转考验,完全合乎标准。这确是一项可喜的成就。本刊在1964年第6期曾简略报道了这一经验,但内容不够详尽、确切,现再次将负责施工单位所撰写的详细修复工艺刊出,供各有关单位参考推广。 Rotary kiln collar is an important part of the rotary kiln support, a diameter of about four meters, weighing more than ten tons, each worth tens of thousands of dollars, only a few domestic machinery factory to produce. Because it often runs under high temperature and heavy load, it is often easy to crack or even break. It can not be used, so it has to be replaced with new one. It is not only costly, but also delayed production due to time-consuming processing and manufacturing. Therefore, how to effectively repair broken collars has long been an urgent technical issue. In recent years, the workers and technicians of the 11th Smelter, under the guidance of Chairman Mao’s thought of “daring to revolution and daring to victory”, have constantly groped for experience and overcoming difficulties and finally found effective ways of repairing them. They not only welded to crack but also succeeded in welding two completely broken collars. Repaired collar after three or five years of the actual operation of the test, in full compliance with standards. This is indeed a gratifying achievement. This journal briefly reported this experience in the 6th issue of 1964, but the content was not exhaustive. Exactly, the detailed repair process that was written by the construction unit was once again published for reference by relevant departments for promotion.