Freeze joint fishplate

The material of the splint is usually 55# steel, the thickness is 55mm, the cross section is in the form of variable section, the middle is thick, and the two sides are thin, which is more in line with the stress condition of the joint. The two outer incline surfaces of the splint are formed by CNC machining center milling and are closely fitted to the two inclines of the upper and lower jaw of the rail waist