Generally speaking, sheet pile is rolled by grooved rolls on the 2 Hi mills and many grooves are necessary to roll it.
一般而言，钢板桩由带孔型轧辊的二辊轧机轧制而成，而且必须多孔型轧制。
2
The reliability of numerical simulation was proved by experiment, and the relation between roll-pressing force and corrugation depth was obtained as guidance for secondary machining of grooved tube.