Cold rolling is refers to under the normal temperature, through cold drawing and cold bending, cold drawn steel plate and steel strip processing into various types of steel.
Advantages:
Molding speed, high output, and does not damage the coating, can make all kinds of section form, the conditions of use, to adapt to the demand of cold rolled steel can produce large plastic deformation, thus improving the yield point of steel.
Molding speed, high output, and does not damage the coating, can make all kinds of section form, the conditions of use, to adapt to the demand of cold rolled steel can produce large plastic deformation, thus improving the yield point of steel.
Disadvantages:
1, although there is no hot plastic compression molding process, but there are residual stress in the cross section steel, avoid the local buckling effect;
2, cold rolled steel style is usually open section, the part for free torsional rigidity is very low. Took turns, under pressure
Bending torsional buckling and torsional performance is poor;
3, cold rolled into a steel tube wall thickness is small, no thickening on the corner of cohesion of the panel is around the corner, weak local concentrated load to bear ability.
1, although there is no hot plastic compression molding process, but there are residual stress in the cross section steel, avoid the local buckling effect;
2, cold rolled steel style is usually open section, the part for free torsional rigidity is very low. Took turns, under pressure
Bending torsional buckling and torsional performance is poor;
3, cold rolled into a steel tube wall thickness is small, no thickening on the corner of cohesion of the panel is around the corner, weak local concentrated load to bear ability.
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