Cold-drawn square steel is a cold-drawn steel with a square cross-section. During processing, cold-drawn square steel is too long to be easily deformed during milling. So how to solve this problem, first of all, we need to control the vibration of the long workpiece. This is very important. Specifically, the workpiece can be pressed on the milling machine platform for processing or clamped with two flat pliers. At the same time, it is necessary to adopt a production process suitable for long workpiece machining, such as roughing and finishing in two or three times, and selecting a suitable tool. The cutting edge of the tool must be sharp to avoid stress and deformation of the workpiece. Avoid rough heat generation in the workpiece You can also consider using a grinder for fine grinding after milling. Therefore, to solve the deformation problem of cold drawn square steel long workpieces, it is mainly to control its deformation amount, vibration of long workpieces, and select a suitable processing technology for processing.
We should also pay attention to another problem. Cold drawn square steel should be directly checked for appearance and quality one by one at negative temperature. As far as the surface of cold drawn square steel is concerned, there should be no cracks and necking in their localized areas. When the temperature is below -20 ° C, we will actually directly prohibit a series of cold bending operations on our cold drawn square steel. If cold drawn square steel is welded under negative temperature conditions in winter, care must be taken at this time to arrange them indoors as much as possible. If welding must be performed outdoors, we should also pay attention that the ambient temperature should not be lower than -20 ° C, and welding should not be performed on snowy days.
When cold drawn square steel is welded outdoors, we should also pay attention to when the wind exceeds 3 levels, we should directly set up wind prevention measures. For joints that have not cooled after welding, we must prevent them from coming into contact with snow and ice. When transporting and processing them, care must be taken to prevent collisions or scratches.