Km Europa Metal Ag

Kme Germany Ag & Co. Kg

Km Eurpoa Metal Ag

Dietmar Kolbeck

Gerhard Hugenschütt

Hans-Günter Wobker

Roland Hauri

Dirk Rode

Thomas Rolf

Hans-Dirk Piwowar

Gerhard Hugenschutt

Raimund Boldt

Frank Maiwald

Egon Mackowiak

Daniel Reinelt

Hans-Günter Wober

Raimund Eichholz-Boldt

Hans-Juergen Hemschemeier

Gerhard Hugenschuett

Hans-Guenter Wobker

Klaus Maiwald

Hans-Jürgen Hemschemeier

Gerhard Hugensch&uuml;tt

A permanent chill mold for the continuous casting of metal, having a mold cavity () which has a pouring slot (), an exit opening () and a casting cone (). At least one concave bulging () is provided that extends in the casting direction (G), which begins at a distance (A) below a predetermined casting bath level position () and extends up to the exit opening ().

Permanent chill mold for the continuous casting of metals

A liquid-cooled permanent mold for a continuous casting installation having a shaping permanent mold body, for example, made of copper or copper alloy. Cooling channels are provided in permanent mold body that extend from its upper side to its lower side. The cooling channels each have two longitudinal sections and the cooling sections have an alignment of their longitudinal axes that differ from one another. In this way, the horizontal distance of the cooling channels from the casting surface is varied and a cooling performance is achieved that is adjusted to the weighting profile of the permanent mold.

Liquid-cooled permanent mold

A chill tube () having a double T-shaped inner and outer cross section in beam blank format is encased in a water-guiding jacket () adapted to its outer contour while forming a water gap (). The wall thickness (D) of chill tube () in the rounded transition regions () from middle crosspieces (), which face each other head to head and are drawn in towards longitudinal axis (), to the neighboring crosswise positioned flanges () is dimensioned at least partially smaller than in the remaining wall sections (). The reduction in wall thickness is implemented by longitudinal hollow recesses (). These recesses () extend only in the height range of the bath level. Into the cross sectional regions which are formed by the outer contour of chill tube () as well as the inner contour of water-guiding jacket (), filler pieces () are incorporated, adapted to this cross section.

Chill tube

A continuous casting roll for the continuous casting of metal strip. The continuous casting roll has an essentially cylindrical core and a jacket, for example, made of a copper alloy, that is shrunk onto it. A relaxation zone is provided between the core and jacket. The relaxation zone, for example, having a radial extension of 1 mm, may be formed by a regional increase in the inside diameter of the jacket, and may be situated in the middle longitudinal range of the jacket.

Continuous casting roll

A plant for the continuous casting of aluminum strip, according to current construction type, has two counterrotating continuous casting rolls (), between which a casting gap () is formed. According to the present invention, the 1. continuous casting roll () is made of a copper material at least in its circumferential edge region, and the other, 2. continuous casting roll () is made of a steel material at least in its circumferential edge region. The copper material should have a thermal conductivity &#x3bb;of 230 to 260 W/m&#xb7;K, and the steel material should have a thermal conductivity &#x3bb;of 30 to 40 W/m&#xb7;K. Rejecting the prevailing idea that casting can only be performed with two continuous casting roll materials of the same kind, so as to ensure uniform crystal growth, a continuous casting roll pairing of steel and copper is provided in the present invention. In order to ensure a qualitatively high value casting microstructure, the difference in the thermal conductivity of the continuous casting rolls should not exceed a factor from 5 to 9. A ratio of thermal conductivity &#x3bb;of the copper material to thermal conductivity &#x3bb;of the steel material of 6:1 to 8:1 has proven particularly favorable.

Cast-rolling plant

A chill tube () for the continuous casting of metals has a double T-shaped cross section in beam blank format. Inner contour () defining the cross section of the cast billet is cooled by cooling water, which is guided through cooling channels () in tube wall (). Cooling channels () have a round cross section when manufactured. Inner contour () has rounded transitions () between wall sections () bordering a flange region () and a crosspiece region (). The distance (A) between two cooling channels () adjacent to each other in transitions () is smaller than distance (B) in the remaining wall sections ().

Chill tube for the continuous casting of metals

A liquid-cooled mold for a continuous casting of metals, including mold plates made of copper or a copper alloy, which are connected respectively to an adapter plate or a cooling-water tank by clamping bolts. The mold is characterized in that the clamping bolts are fastened to plateau pedestals which project in an island-like manner from the cooling arrangement side of the mold plate, which jut at least partially into a cooling arrangement gap formed between the mold plate and the adapter plate or the cooling-water tank, respectively, and have a streamlined shape adjusted to the flow direction of the cooling arrangement.

Liquid-cooled mold

A liquid-cooled mold for the continuous casting of metals, including mold plates made of copper or a copper alloy, which are supported at their rear on supporting plates by the use of a plurality of bolts. The bolts have bolt heads in the region of the backsides of the supporting plates facing away from the mold plates. Between the bolt heads and the supporting plate an articulation system making possible relative motion between the mold plate and the supporting plates is incorporated, having two articulation members, between which a sliding element is undetachably embedded.

Liquid-cooled mold for the continuous casting of metals

A chill tube ( ) for the continuous casting of metals has a double T-shaped cross section in beam blank format. Inner contour ( ) defining the cross section of the cast billet is cooled by cooling water, which is guided through cooling channels ( ) in tube wall ( ). Cooling channels ( ) have a round cross section when manufactured. Inner contour ( ) has rounded transitions ( ) between wall sections ( ) bordering a flange region ( ) and a crosspiece region ( ). The distance (A) between two cooling channels ( ) adjacent to each other in transitions ( ) is smaller than distance (B) in the remaining wall sections ( ).

Growing community of inventors

Steinfeld, Germany

Dietmar Kolbeck