Tham khảo tài liệu 'expert systems for human materials and automation part 7', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Expert System Used on Materials Processing 171 - Orientation of the material in coolant vertical or transversal and depends on material geometry. - Cooling speed depends on viscosity of the coolant its agitation speed the oxides layer from the surface of the material. It classifies in rapid moderate or slow. - Uniformity of cooling process such as uniform or non-uniform. - Global coefficient of heat transfer depends on cooling speed material density and specific heat and geometric factors. It classifies in high average and low. - Residual tensions in the material after heat treatment depend on material history and the entire cycle of heat treatment the material supported. It classifies in negligible moderate or high. - Hardness of the material after treatment is influenced by cooling speed carbon content and type of the coolant. It classifies in high average and low. - Deformation tendency of the material depends on cooling speed nature of the coolant and residual stresses within material. It classifies in small average and high. - Cracking probability is influenced by the same parameters as deformation is. - Input variables of the expert system. List of the input variables is exhaustive but between these only those that influence the problem analyzed by the expert system are chosen. - Coolant water oil polymer - Temperature of the coolant high average low - Agitation speed for coolant insufficient moderate or excessive - Viscosity of the coolant big average small - Agitation type that defines the way agitation realizes through pump adjustment or compressor - Circulation speed of the coolant - Type of the coolant old or new - Degradation of the polymer as coolant - Material that must be treated steel mark - Material geometry - Material surface and its section - Material volume big small - Material density high low - Specific heat high low - Oxide layer from material surface - Material roughness rough or smooth - Orientation of the material in the coolant - Carbon .
