Deformation characteristics of spiral steel pipe have three points:
1. The full cross-section of the spiral steel pipe evenly distributed as a foundation, the choice of pairs or pairs of rollers to form a complete shape of the hole because of the larger roll section roller diameter.
2. The combination of the spiral steel pipe is the distribution of the force in the whole section of the curve, the wear of the plastic and the quality of the material and the quality of the analysis of the original deformation of the roll is divided into several pairs of smaller rolls to apply twists and turns, between the small roller from the non-binding twists and turns. This skill can significantly reduce the roll weight and improve the quality of the tortuous appearance, especially for large standard cross-section of the goods, the role of significant.
3. The spiral steel pipe common roller twists and turns in the tortuous deformation. Only the set of units of the hole planning guidelines remain unchanged. The lattice in the same frame deformation has the following three characteristics:
1) Straightness: the standard in the arc similar to the point, and the point can form a straight line I standard change spiral pipe can be b similar to the point of the line to move the end;
2) Parallelism: tangents and lines of similar points are always parallel;
3) Share: similar to the point of the interval and its twist radius of the amount of the amount.
