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我公司两台90米~2烧结机各用一台6500米~3/分抽烟风机,一台是沈阳鼓风机厂制造的,一台是从苏修引进的。原来的叶片都是铆接的,磨穿后,我们更换新叶片采用焊接工艺进行修复。叶片材质仍用30CrMnSi。并在叶片上堆焊了耐磨材料。从1974年开始,现已修复四个,使用情况基本良好。修复时,在结构上做了多次改进,以适应焊接工艺的要求,并希望提高风机的性能。这里只对焊接工艺概述如下。
Two 90m ~ 2 sintering machines of our company each use one 6500m ~ 3 / min smoking fan, one is made by Shenyang Blower Factory and one is imported from Soviet Union. The original leaves are riveted, worn, we replace the new leaves using welding process to repair. Leaf material is still 30CrMnSi. And welded on the blade wear-resistant materials. Since 1974, four have now been repaired and the usage is basically good. When repaired, several improvements were made to the structure to accommodate the welding process and to improve fan performance. Here is a summary of the welding process is as follows.