驳船锚机在抛锚和起锚时,承受很大的冲击载荷,常使锚机地脚螺钉及起锚机轴承盖连接螺丝断裂。这种断口往往处于螺孔中间。如不及时更换新螺丝,将严重影响船舶的安全航行。在实践中,摸索到一种用堆焊法取断螺丝的方法,即实用又简便。其具体方法如下: 1) 堆焊前先将螺丝断口及螺孔内的油污清除干净。 2) 当断丝直径为10～20毫米时,一般选用直径为2.5毫米的结422焊条,焊接电流为70 Barge anchor windlass in the anchor and anchor, bear a lot of impact load, often make the anchor machine anchor bolts and capstan bearing cap screw fracture. This fracture is often in the middle of the screw hole. Failure to replace the new screw in time will seriously affect the safe navigation of the ship. In practice, to explore a method of using the surfacing method of breaking the screw, that is practical and easy. The specific methods are as follows: 1) before welding the screw fracture and screw hole oil clean. 2) When the broken wire diameter of 10 to 20 mm, the general use of the diameter of 2.5 mm knot 422 electrodes, the welding current is 70