Apparatus for the curing of cores and/or moulds made from sand with the use of a binder and used for casting castings composed of metallic or non-metallic molten starting materials

摘要

In an apparatus for the curing of cores and/or moulds made from sand with the use of a binder and used for casting castings composed of metallic or non-metallic molten starting materials, with a line for the liquid reagent leading from a storage vessel to a mixing chamber, a feed pump situated in this line and taking the form of an oscillating diaphragm pump for the reagent, a heating device for the mixing chamber and controlled valves which control the entry of the compressed air and entry of the reagent to the heated mixing chamber in time with the sequence of operations, a pressure-holding valve is provided between the heated mixing chamber and the feed pump.