2A Industry Applications: Computer Makes Precise Purlins
Erectors of steel-frame buildings may not realize that the purlins they get from Molenco (Houston) are now sized with help from a microprocessor and a brushless AC servo drive. But these commonly used structural members are roll formed in C and Z cross sections from blanks precisely cut to specified length, and punched with rivet or bolt holes, if needed. Any sledge-hammering required during fit up is due to mismatches in the surrounding steel, not to deviations in purlin length.
KeywordsTorque Shipping Pyramid
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