According to Netease, the welding box can be quenched and tempered by reducing welding current, reducing heat input, increasing wire feeding speed and cooling the weld seam with melted welding wire.
The box is the key component of the drafting machine, and it is the operation and basic center of the whole machine. Its structural characteristics belong to the typical manufacturing category of large welded boxes. Therefore, it is very important to ensure the assembly welding quality of the box and the manufacturing accuracy of the bearing mounting holes for the running stability of the roller body.