Study On Strength Of Large-Scale Flat Receptacle Based On ANSYS

Aluminum has some advantages such as light mass, high precision, fine airtightness, unfailing performance, which makes it used broadly in manufacture increasingly. The combined flat receptacle is the key part of extruder which produces the aluminum, and often cracks under severe condition of high temperature, high pressure, high friction. The appropriate design and manufacture technology of large flat receptacle is not resolved until now, so in order to enhance the strength of flat receptacle and prolong life, we should analyze its stress and deformation distribution with accuracy.The thesis takes the combined flat receptacle as subject investigated with numerical simulation and physical simulation. Firstly, models in three-dimension using large finite element ANSYS software, analyzes the flat receptacle in statics and contact non-linearity. Then researches the deformation and stress distribution of flat receptacle under shrink condition systematically, and does systematic study on the deformation and stress distribution under shrink and work load. On the base of mentioned above, owing to the receptacle works under the condition of high temperature and high pressure, the thesis does finite element analysis of force-heat in coupling and educes stress rule which provides gist for strength design of flat receptacle.Comparing with 3Cr2W8V material used before, the thesis selects high quality steel 4Cr5MoSiV1 (H13) with high strength. Its toughness and fine airtightness are better than 3Cr2WSV, so the life increases one or two times.The research results provide technology help on the design, optimization and modeling and have some instruction for perfecting the design theory about profile extrusion. The large-scale extruder has adopted the result of the thesis and has debugged and run successfully. The strength design of flat receptacle reaches demands. Its every technique parameter reaches prospective indexes. Now the extruder has run in the production.