Patent DE-102006036369-A1 (DE)
Title: Melting-, casting- and pressing process for producing high stressable components, by introducing, heating, melting and quantifying pieces of starting material into closed system, and promoting the material in mold cavity by pressure chamber
Inventor: KAHN FRIEDHELM
IPC: B22D17/00
Filed: 2006-08-02
Abstract: The melting-, casting- and pressing process for the production of high stressable components, comprises introducing, heating, melting and quantifying pieces of starting material into a closed system under protective gas, promoting the material over a pressure chamber (2.1) in a mold cavity (2.3) of a mold (2.2), hardening the material under increased pressure with formation of a defect free cast structure, and carrying the component structure after the hardening through further increased pressure in changeable mold cavity for processing. The melting-, casting- and pressing process for the production of high stressable components, comprises introducing, heating, melting and quantifying pieces of starting material into a closed system under protective gas, promoting the material over a pressure chamber (2.1) in a mold cavity (2.3) of a mold (2.2), hardening the material under increased pressure with formation of a defect free cast structure, and carrying the component structure after the hardening through further increased pressure in changeable mold cavity for processing. The component with ultimate dimension is transported partially into a knead structure and is taken after cooling and opening of the mold. Light alloys and/or cast- and wrought alloys are used as starting materials. The component production progresses from the starting material up to the final product in a heat without intermediate cooling and renewed heating. The starting material body is supplied through a roller and a mechanic or electro magnetic linear drive or a gas tight sluice into the closed protection gas system (1.5). The contact areas of the starting material body are formed among one another, so that a warm transition is hindered between the bodies. The weight of the material bodies corresponds to the weight of the produced component. The cross-section of the material body is round, quadratic or flat. The material body is inductively heated in a tubular heating aggregate with strong heat output. The material body is hindered in the heating aggregate with suitable agent on uncontrolled through slip. The material body heated up in the heating aggregate up to a temperature in solid-liquid-area is completely melted subsequently in coupled melting furnace (1.3) with high effort and is super heated at casting temperature. The melt is quantified at a volume corresponding to the component to be produced by a gas pressure dosing system in the melting furnace. The quantified melt volume is promoted directly from the furnace by gas pressure or electromagnetic pump through a reduced pressure chamber into the mold cavity. The pressure piston progresses first against end of the form filling and develops a high ultimate pressure. The solidification process of the melt in the mold is regulated by incorporated cool bodies according to the threshold-sequence-cooling and is supported in coordination with the cooling through pressure elements for minimizing the mold cavity. The hardened material in the mold is brought by movable form part and its cast structure is changed into the knead structure. A part of the movable form part brings a volume reduction of the mold during another part allows the corresponding volume enlargement. The form filling takes place below the mold. Independent claims are included for: (1) fabrication plant for melting-, casting- and pressing process for the production of high stressable components; (2) a melting furnace for the fabrication plant; (3) a melt dosing device for the fabrication plant; and (4) a gas pressure control system for the fabrication plant.