阳江双层压瓦机定制厂现货供应@中国河北沧州浩洋高端压瓦机

阳江双层压瓦机定制厂现货供应@河北沧州浩洋高端压瓦机

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如果焊件的拘束度很大，如板厚较大、形状复杂或因人为施加的夹具而处于较强的拘束状态下，此时焊件不能变形，但在焊接应力作用下会产生局部的应变，同时产生较大的残余应力。焊缝区残余应力的峰值可以达到材料的屈服强度值。压瓦机的刀不动怎么办

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