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钢板厚度方向拉力试样的加工钢板厚度方向拉力试样是在板厚方向取样,板厚足够时可直接取样。板厚为15～50mm时,采用焊接加长的办法。使用C20型摩擦焊机焊接试样加长部分的最佳工艺为:板厚在16mm以下时,二级摩擦力为20kgf/cm~2,二级摩擦时间为0.5s,顶锻时间为1.5s;板厚为16～40mm时,二级摩擦力为20kgf/cm~2,二级摩擦及顶锻时间各为2s;板厚大于40mm时,二级摩擦力为25kgf/cm~2,二级摩擦时间1s,顶锻时间为2s。
Plate thickness direction Rally sample processing Plate thickness direction Rally sample is taken in the direction of the plate thickness, plate thickness can be directly sampled. Thickness of 15 ~ 50mm, the use of welding extension method. The optimum process for welding the extended part of the sample with C20 friction welding machine is as follows: the secondary friction force is 20kgf / cm ~ 2 when the thickness is less than 16mm, the secondary friction time is 0.5s and the upsetting time is 1.5s; When the thickness is 16 ~ 40mm, the secondary friction force is 20kgf / cm ~ 2, the secondary friction and the upsetting time are 2s each. When the thickness is more than 40mm, the secondary friction force is 25kgf / cm ~ 2, Time 1s, upset for 2s.