To straighten out the bend and shape of EH40 angle steel in rolling, cold, transport, etc., to make the shape correct and straight by straightening so that meet the EH40 angle steel quality requirements. There are some reasons to impact the straighten of EH40 angle steel.
Effect of straightening equipment on quality of EH40 angle steel. EH40 angle steel straightening generally use 7-roll to 11-roll roller straightening machine. Small EH40 angle steel using more rolls straightening machine; The roller straightening quality is good, and the roller straightening for large EH40 angle steel is complicated, so it is often used in seven-roll straightener.
Effect of straightening technology on quality of EH40 angle steel. Because the EH40 angle steel is an asymmetrical rolled piece, the temperature is low in the thinner part of the waist, and the temperature in the thicker part of the leg is high, which results in the upward bending of the leg during cooling. In order to straighten the EH40 angle steel, first of all, the cooling of the EH40 angle steel should be controlled well, and the temperature difference and bending degree should be reduced.
