A lot sizing and scheduling problem prevalent in small market-driven foundries is studied. There are two related decision levels: (1) the furnace scheduling of metal alloy production, and (2) moulding machine planning which specifies the type and size of production lots.Amixed integer programming (MIP) formulation of the problem is proposed, but is impractical to solve in reasonable computing t...

In a post-pandemic world, health and environmental safety will become more important issue than it was before the COVID-19 pandemic. Several fields of engineering, including foundry industry, have already adopted measures in workplace. The risk pulmonary disease caused by inhalation fine particles silica sand, main moulding material used is rampant that industry. terms protection, new regulator...

Abstract The industrial sector is responsible for significant amounts of CO 2 emissions. Although research activities have already given their attention to major industries such as steel, small sectors metal casting been overlooked. Therefore, there are evident knowledge gaps regarding the environmental impact foundry industry and possibilities decarbonizing sector. Herein, this study focuses o...

One of the main objectives in order to increase economic efficiency foundries is determine ratio scrap material which can be used further manufacture. This factor important for determining final prices products and their competitiveness, given that zinc on world markets have increased significantly recent years. article deals with possibilities remelting foundry alloy ZnAl4Cu3 also evaluates ef...

Abstract The CW6MC alloy is a nickel-based used to withstand acidic environments, especially in the oil and gas industry where it production of valves, impellers, pipes. This foundry counterpart best known A625 for plastic deformation. Regarding alloys, scrap market like that case steel has not yet been established, therefore, foundries, generally comes from internal recycling (casting waste, f...

This research evaluated the hydrocarbon emission characteristics during pyrolysis of four carbonaceous additives that can be used in green sand foundries. These included a highly volatile bituminous coal, anthracite, lignite and cellulose. The samples were flash pyrolyzed in a Curie-point pyrolyzer at 920 C with a heating rate of about 3000 C/sec. This simulated the fast heating conditions that...

casting yield in a general sense must begin with these rules. THE consequences of a low casting yield are well known Furthermore, casting simulation does not provide the initial in the foundry industry: lower profits due to increased proriser design for a casting, nor does it automatically optimize duction costs and decreased capacity. Additional melted the risering. Thus, even if simulation is...