Abstract: The invention relates to a frame (2) including at least one part that is intended to support a skin (3) for receiving a part made from a composite material to be polymerized in an autoclave, said skin (3) defining the general shape of said part. The frame (2) is characterized in that it is a single-piece foundry piece.

Abstract: This spheroidal graphite or flake graphite cast-iron alloy in weight % comprises the following elements: Carbon (C) between 1.2% and 3.5%, Silicon (Si) between 1.0% or 1.2% and 3%, Nickel (Ni) between 26% and 31%, Cobalt (Co) between 15% and 20%, the remainder being Iron and inevitable impurities. Application to the production of tooling.

Abstract: The invention relates to a frame (2) including at least one part that is intended to support a skin (3) for receiving a part made from a composite material to be polymerized in an autoclave, said skin (3) defining the general shape of said part. The frame (2) is characterized in that it is a single-piece foundry piece.

Abstract: A spheroidal graphite cast iron alloy comprises, in % by weight, in addition to addition elements, the following elements: Ni between 3.5% and 7%, Cu between 0.5% and 3%, Mo between 0.15% and 1%, the remainder being iron and inevitable impurities. The spheroidal graphite cast iron alloy may be used in manufacturing a part such as cogwheels and gear rims. The method of manufacturing the part may comprise casting a rough casting blank, notably into a mold, and letting the rough casting blank cool in the mold, thus obtaining the part.

Abstract: This drive device (6) is capable of transmitting a drive torque to the combustion chamber of a rotary kiln. The drive device (6) includes a drive ring gear (8) adapted so as to be attached to the combustion chamber. At least a portion of the drive ring gear (8) is fabricated out of cast iron.

Abstract: A spheroidal graphite cast iron alloy comprises, in % by weight, in addition to addition elements, the following elements: Ni between 3.5% and 7%, Cu between 0.5% and 3%, Mo between 0.15% and 1%, the remainder being iron and inevitable impurities. The spheroidal graphite cast iron alloy may be used in manufacturing a part such as cogwheels and gear rims. The method of manufacturing the part may comprise casting a rough casting blank, notably into a mold, and letting the rough casting blank cool in the mold, thus obtaining the part.

Abstract: The invention relates to the welding of cast-iron castings.The process for the fusion welding of spheroidal-graphite cast-iron castings comprises the following steps:a) a preheat at a temperature of between 230.degree. and 300.degree. C. is carried out before buttering the zone of the casting to be welded;b) a heat treatment at a temperature of between 800.degree. and 920.degree. C. is applied to the buttering for a suitable period and .then a cooling cycle is carried out;c) again, a preheat of the buttering is carried out at a temperature of between 130.degree. and 200.degree. C. and followed by a finish weld.Application to the repair of cast-iron castings and to the joining of cast-iron castings together or to steel castings.