Caster Curved Section Of Mechanical Stress And Thermal Deformation Analysis

Billet continuous casting technology as one of the key technologies introduced in China’s steel industry, the rapid development of China’s steel industry has provided a guarantee After the continuous casting billet production process, the billet mold formed by the oscillating initial solidified shell, the first curved section at the caster initial straightening roller by pulling a fixed shape, while for the initial cooling and secondary cooling. After casting machine curved section shell growth is finally pulling thick slab caster line segment to complete the follow-up billet forming and cutting. Caster Caster curved section as the " head " of its harsh working conditions, while subject to complex mechanical and temperature loads role in the course prone to distortion, the impact on production quality billet obvious, there may lead to rupture of shell damage and even breakout vicious accident. Optimal design caster curved segment structure and rational manufacturing is one of the key technologies to be solved, which accurately analyze the three-dimensional mechanical and temperature stress and deformation fields is an important basis for the key technology.In this paper, Shanghai Meishan Iron&Steel Co.#2caster curved section, were mechanics modeling the overall structure, formation and role of the cooling water conditions based on the actual production of continuous casting machine, consider the tension leveler mechanical loads and thermal radiation billet temperature load, using three-dimensional nonlinear finite element method to analyze the thermal-mechanical coupling has been stress and deformation fields caster curved segment. Using Pro/E software for complex curved segment structure solid modeling full-size, using HyperMesh meshing software using ANSYS software heat-computer coupled stress and deformation fields of analysis. Finite element model comprises a main frame, straightening rolls, ribs, bearings, trunnion seat, banana seat and other body parts and auxiliary support member. In the calculation and analysis process, considering the mutual contact between the real power transmission mode caster curved section and all parts, straightening force, gravity loads, billet thermal radiation, heat conduction and cooling contact cooling water between components effect. In order to consider the effect of mechanical coupling and temperature loads calculated temperature field caster curved section, and then thermal effects as the "body load " is applied to the finite element model, and finally completed the overall structure of the thermal-mechanical coupling stress field and coupling deformation field calculated.Three-dimensional nonlinear finite element bending caster model established in this paper, can give full consideration to the actual production conditions and heat-mutual contact between the mechanical coupling effects, as well as spare parts, thermal analysis caster curved segment is reasonably accurate-mechanical coupling stress and deformation of the foundation. Heat2through#Caster curved section-mechanical coupling stress and deformation analysis of the calculation to verify the existence of two curved sections#Caster trunnion seat high stress areas, with the actual use of the middle ear pressure shaft seat often deformed phenomenon of collapse and other damage consistent, continuous casting machine#2curved section to improve the design and partial reinforcement provides calculation basis.