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在济南钢铁总厂中板分厂大修中,我们运用环氧砂浆粘结法,精心组织施工,仅用10个小时就在主电机传动基础中粘结10根M100螺栓获得成功。 下面谈谈具体的施工方法。 1 螺栓孔的成孔及孔内灌注环氧砂浆前的处理 1.1 该螺栓孔的成孔要求:孔径精确Φ130±5mm,垂直度误差不超过孔深的1/10。孔深h=1200mm～1400mm。 1.2 由于采用水钻成孔,而灌注环氧砂浆要求成孔必须彻底干燥,为此要首先将水掏干,再送风风干,然后轮番送进烧红的Φ100钢管,彻底烘干(这种方法至少要连续烘干12个小时以上)。 注意:不能用明火直接烧干以免损伤孔侧壁的
In the overhaul of the Zhongban branch of the Jinan Iron and Steel Corporation, we applied the epoxy mortar bonding method and carefully organized the construction. It took 10 hours to successfully bond 10 M100 bolts to the main motor transmission foundation. Let’s talk about specific construction methods. 1 Hole formation of bolt holes and treatment before injecting epoxy mortar into the holes 1.1 The requirements for hole formation of the bolt holes: the hole diameter is Φ130±5mm, and the squareness error does not exceed 1/10 of the hole depth. The hole depth h=1200mm to 1400mm. 1.2 Due to the use of rhinestones to form holes, and impregnation with epoxy mortar requires that the holes must be thoroughly dried. To do this, the water must first be dried, air-dried, and then rotated into a red-hot Φ100 steel pipe, thoroughly dried (this method is at least Continuous drying for more than 12 hours). Note: Do not dry directly with open flame so as not to damage the sidewall of the hole