Influence of outer diameter accuracy of large diameter square tube

The outer diameter accuracy of large diameter square tube is a human element management decision, and the result depends on the consumer, depending on the consumer's requirements for the diameter of the large diameter square tube, the operation and accuracy of the large diameter square tube die mouth machinery and equipment, and the management system of the large diameter square tube die mouth production process.

Large diameter square tube die mouth method is an important factor in the management decision large diameter square tube diameter standard tolerance. Longitudinal rolling die mouth of large diameter square tube, large diameter square tube outside diameter accuracy can be to about 1%, and oblique rolling die mouth of large diameter square tube high outside diameter accuracy, guarantee 0.5%.

The influence of the production process management system on the degree of large-diameter square tube diameter of the important management decisions on the stability of the hot rolling temperature and temperature of the large-diameter square tube sizing machine. Large diameter square tube hot rolling temperature increases, after rolling large diameter square tube shrinkage, generally very easy to exceed the diameter of the large diameter square tube resulting in large diameter square tube leads to negative deviation.

On the contrary, the low hot rolling temperature is likely to exceed the positive deviation, and become residual. Therefore, according to the die mouth large diameter square tube specifications model specifications, large diameter square tube model specifications, as well as temperature conditions and common tools destroyed to continuously adjust the large diameter square tube continuous extruder.

Industrialized production rapid development tends to the whole process, large-diameter square tube in China's Chinese iron and steel production volume, the share accounted for by an increasing proportion. Due to the diversified scope of application of large-diameter square tube, the quality of the large-diameter square tube is also clearly indicated higher requirements. Among them, the thin thickness deviation of large diameter square tube is one of the important indexes of its quality.

Because the wall thickness deviation will immediately affect the application range of large-diameter square tube, in today's increasingly strong market demand, if a large-diameter square tube manufacturer is unable to work on the quality, and unable to produce high-quality large-diameter square tube, then the loss of many market shares is inevitable.