BA ASTM 310 317 5mm Stainless Steel Channel Steel Frame Structure Waist

The basic basis for the design of the channel steel shear blade is the shape of the finished hole in the channel steel, this design is prone to the following problems in the shearing process: First, the two shoulders of the channel steel compared with other parts, relatively thick, the required shear force is also greater, the shear blade wears faster, after a period of use of the shear blade. This part of the relative amount of wear, resulting in a large gap between the shoulders, prone to shoulder collapse phenomenon; Second, the two legs of the channel steel compared with the waist, due to the impact of the shear angle, when the shear blade wear, in shearing the two legs, the shear amount becomes smaller, the leg shear from the usual shear into a tear, the channel steel leg end surface is very easy to burr; Third, the upper and lower shear blade leg slope and channel steel finished hole type is basically the same, so that the leg in shear Basic simultaneous force, shear force, shear edge wear faster, on the one hand, the leg end shear indentation serious, on the other hand, shear edge aging, very easy to appear in the shear part of the channel steel tear, burr more phenomenon. The latter two points are the main reasons affecting the quality of shear channel steel.