Strength Analysis And Structural Improvement Of A High Pressure Sintering Furnace

High pressure sintering furnaces are widely used in metallurgy, steel, ceramic and many other fields. Their structure is complex and they normally work under alternating loads. The main components of a high pressure sintering furnace include furnace body, furnace door, lathedog, inner component, door hinge and supporters.In this dissertation, strength check and fatigue assessment of a high pressure sintering furnace are carried out in the finite element software ANSYS. Thermal-mechanical coupling and contact non-linear technique are adopted and JB4732-1995 Steel Pressure Vessel-Design is taken as the pressure vessel design standard. All structures which fail to meet the requirement of stress intensity have been improved.In addition, contact analysis and shakedown assessment are conducted on the core part of the sintering furnace, the quick open-closure device, to prove the impossibility of the happening of the ratcheting phenomenon. At the same time, traditional calculation by rule and strength check are carried out on the clamp according to the standard HG20582-1998. By comparing the results of the traditional calculation results and the stress analysis, the regulation for reliable design by analysis is obtained. Then, a parameterized model of the clamp based on parametric language is built and the optimal design on the structure parameters within optimization space is conducted.Finally, an exposure rating report is compiled according to the working environment of the high pressure sintering furnace and its potential failure mode. The report provides an emergency plan and preventive measures for accidents that may occur and presents a deeper interpretation of the purpose in designing pressure vessel from the perspective of the designer.