초록 ▼

An apparatus for the continuous casting of metallic strand from a melt has a fluid-cooled coolerbody surrounding a casting die, and resilient O-ring seals which surround the upper and lower ends of the coolerbody to contain the cooling fluid within a distribution conduit. Extensions of the cooling f

An apparatus for the continuous casting of metallic strand from a melt has a fluid-cooled coolerbody surrounding a casting die, and resilient O-ring seals which surround the upper and lower ends of the coolerbody to contain the cooling fluid within a distribution conduit. Extensions of the cooling fluid distribution conduit are formed within the coolerbody between the O-rings and the heat-dissipating strand, as protective thermal barriers to limit the temperature rise experienced by the O-rings. An annular shield also is disposed intermediate the upper O-ring and the strand to form two air gaps which enhance the thermal barrier effect.

대표청구항 ▼

In an improved apparatus for the continuous casting of a metallic strand from a melt in which said apparatus is partly immersed, having a die of a refractory material in fluid communication with said melt, the die substantially defining a mold cavity through which mold cavity said strand is drawn, a

In an improved apparatus for the continuous casting of a metallic strand from a melt in which said apparatus is partly immersed, having a die of a refractory material in fluid communication with said melt, the die substantially defining a mold cavity through which mold cavity said strand is drawn, a thermally conductive coolerbody, surrounding at least a portion of said die to extract heat therefrom, and conduit means for passing a cooling fluid through said coolerbody, said coolerbody having a first end portion positioned below a second end portion, with only said first end portion encompassing said die, the improvement comprising: O-ring sealing means mounted in a recess of said coolerbody for containing said cooling fluid within said conduit means, said O-ring sealing means comprising: a resilient first O-ring surrounding said first end portion of said coolerbody; an annular positioning member secured to said coolerbody and surrounding said first O-ring in compressive engagement therewith; a resilient second O-ring surrounding said second end portion of said coolerbody; and a coupling member which receives said second end portion of said coolerbody and surrounds said second O-ring, in compressive engagement therewith; thermal barrier means within said coolerbody and between said mold cavity and said O-ring sealing means for maintaining the temperature of said O-ring sealing means at a level insufficient to damage said O-ring sealing means.