The orthogonal experiments were made to compare the influence of plasticizing degree and that of welding conditions on the fillet weld strength of PVC-U profiled materials.

• 通过正交试验对比PVC-U型材塑化度和焊接条件对焊角强度的影响试验得知:焊接温度、加热时间及型材塑化度对焊角强度的影响较大,焊接时间与进给压力对焊角强度影响相对较小。