With the surge in demand for thick walled coiled pipes in engineering，JCOEThe rolling process has gradually replaced the traditional rolling process，Becoming the mainstream technology in the production of thick walled coils。JCOEProcess adopted“JType bending—CType matching—OType Forming”three-step approach，Precise control of each bending angle through 10000 ton molding equipment，Maximum wall thickness that can be produced100mm、length12.6High strength rolled tube of rice。Compared with traditional pipe rolling process，JCOEDeviation of roundness of coiled tube≤outer diameter1%，Control the circumference deviation within±2mminside，The stress on the weld seam is more uniform，Can withstand higher work pressure，Widely used in nuclear power、Deep sea platform、High end engineering fields such as bridge support，Becoming the core guarantee for the quality of thick walled rolled pipes