如何卸掉损坏的螺丝

方法 1

方法 1 的 2:如何卸掉断头螺丝

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1
使用螺丝取出器。螺丝取出器是专门用来取出坏螺丝的工具。一般在五金店都能买到,而且价格也不贵。用螺丝取出器能让你省点劲。
要卸掉螺丝头磨花或者断掉了的螺丝,用螺丝取出器最方便了。WH.performance.mark(‘step1_rendered’);

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2
在螺丝上钻个洞。选一个比螺丝更细一些的钻头,对准螺丝中央钻一个洞。如果钻不动,那就换一个小点的钻头试试,比如1.6毫米的钻头。钻的时候要轻一点、慢一点,以免弄断钻头。
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3
用锤子把螺丝取出器锤到底。把螺丝取出器插进钻好的洞里,用力按紧。然后用锤子把它敲到底。[2]
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4
逆时针转动螺丝取出器,把螺丝拧下来。把螺丝取出器使劲按进螺丝后,用螺丝刀或者手钻逆时针转动螺丝取出器。螺丝取出器上的螺纹会卡住螺丝,拧动螺丝取出器的时候,就可以把螺丝一起卸下来了。[3]
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如果还是拧不下来,试试用力敲打螺丝取出器,让它在螺丝里插得更深一点;或者在螺丝上倒点润滑剂。然后等30分钟再试一试。

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如果没有螺丝取出器,你也可以用钳子夹住螺丝杆,然后把螺丝拧下来。要把断头螺丝拧下来,可以用钳子夹住螺丝杆的末端把它拧下来。[4]
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方法 2

方法 2 的 2:如何卸掉螺丝头磨花了的螺丝

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1
换其他尺寸的螺丝刀试试,看能不能拧动。有时候,即使螺丝头已经磨得很花了,换一个大一点或者小一点的螺丝刀,就可以卡住螺丝头。如果十字螺丝刀不行,你可以换个一字螺丝刀试试。[5]
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如果第一次没有拧动,不妨换把其他尺寸的螺丝刀。如果硬拧,可能会让螺丝头变得更滑。

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2
在螺丝头上放一块橡胶条,可以增加螺丝头和螺丝刀之间的摩擦力。把橡胶条切成长条状,这样放在螺丝头上时就会比较平,不会卷在一起。然后把橡胶条盖在螺丝头上面,再用螺丝刀拧螺丝头。橡胶条可以增大摩擦力,没准就能把螺丝拧下来了。[6]
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3
在生锈的螺丝上倒一些化学制品,没准会有助于卸掉螺丝。有时,生锈的螺丝会和周围的材料粘在一起。在螺丝上喷点或者倒点类似于润滑剂、烤箱清洁剂等化学制品,或者是碳酸钠(可乐)甚至柠檬汁,然后等待10分钟再试试。你可能需要重复几次上面的步骤,有时甚至要等一天才能看到效果。[7]
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4
如果螺丝头磨花了,拧的时候老是打滑,可以用胶水把螺丝刀或钻头和螺丝头粘在一起。在螺丝头上滴一些强力胶水,然后把螺丝刀或钻头粘在上面。等胶水干了之后,向下用力顶着螺丝刀或钻头,把螺丝拧下来。[8]
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5
如果还是不行,可以试试用旋转切割器在螺丝上切一道新的凹槽。如果螺丝头已经彻底磨花了,你可以用旋转切割器在螺丝头上切一道新的凹槽。然后用一字螺丝刀或一字钻头把螺丝拧下来。[9]
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6
要是螺丝实在是拧不下来,可以直接用钻头钻掉它们。如果上述方法都不奏效,那么就用钻头钻掉螺丝。例如,你可以用比螺丝大一号的钻头向下钻,直接把螺丝钻没。你也可以用钻头把螺丝头钻掉,然后用钳子把螺丝杆拔出来。[10]
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