Forging formula arm -tie

The utility model discloses a forging formula arm -tie, including the round steel main part, the both ends of round steel main part are forged the arm -tie respectively and are connected, have seted up the joint hole on the arm -tie connects. Use the round steel as raw and other materials, unloading to required size, it forms the arm -tie joint to adopt the mould to forge at the both ends of round steel, , adopt two arm -ties the mode of machine tooling to set up the joint hole on connecting respectively. The utility model discloses can show the steel utilization ratio that improves the arm -tie, reinforcing arm -tie fatigue resistance can, do benefit to paint and adhere to, good anti -corrosion performance has, be applied to truss cantilever crane on, can make truss cantilever crane security performance obtain obvious the improvement. 本实用新型公开了种锻造式拉板，包括圆钢主体，所述圆钢主体的两端分别锻造拉板接头，拉板接头上开设有接头孔。以圆钢为原材料，下料至所需尺寸；在圆钢的两端采用模具锻造形成拉板接头；在两个拉板接头上分别采用机加工的方式开设接头孔。本实用新型能够显著提高拉板的钢材利用率、增强拉板的抗疲劳性能，利于油漆附着，具有良好的抗腐蚀性能，应用于桁架臂式起重机上，能够使得