A mold body for use in a mold includes a mold cavity, a chill cavity, a fill channel, and a chill material having a thermal conductivity that is greater than the thermal conductivity of the mold body disposed within the chill cavity. The chill cavity is formed adjacent the mold cavity and is separated from the mold cavity by a chill wall. The fill channel is in communication with the chill cavity and with an exterior surface of the mold body.

A mold body for use in a mold includes a mold cavity, a chill cavity, a fill channel, and a chill material having a thermal conductivity that is greater than the thermal conductivity of the mold body disposed within the chill cavity. The chill cavity is formed adjacent the mold cavity and is separated from the mold cavity by a chill wall. The fill channel is in communication with the chill cavity and with an exterior surface of the mold body.

A die cast machine includes a die component and a back block supporting the die component, which includes a protrusion, the protrusion having a second cross-sectional shape and a first height. The cross-sectional shape is substantially similar to the cross-sectional shape of the recessed area of the die component, the protrusion being received within the recessed area. The first height of the protrusion is less than the depth of the recessed area. The die cast machine also includes a chill block positioned between the die component and the back block, the chill block having a cross-sectional shape and a second height. The cross-sectional shapes are all substantially similar. A sum of the first height and the second height is substantially similar to the depth of the recessed area.

A die cast machine includes a die component and a back block supporting the die component, which includes a protrusion, the protrusion having a second cross-sectional shape and a first height. The cross-sectional shape is substantially similar to the cross-sectional shape of the recessed area of the die component, the protrusion being received within the recessed area. The first height of the protrusion is less than the depth of the recessed area. The die cast machine also includes a chill block positioned between the die component and the back block, the chill block having a cross-sectional shape and a second height. The cross-sectional shapes are all substantially similar. A sum of the first height and the second height is substantially similar to the depth of the recessed area.

A metal casting system includes a cope mold portion, a drag mold portion, and a mold cavity. The cope mold portion comprises internal cope mold walls. The drag mold portion comprises internal drag mold walls. The cope mold portion and the drag mold portion comprise a molding material comprising a plurality of metal particles.

The mold cavity is representative of a mold pattern, wherein the internal cope mold walls and the internal drag mold walls define, at least in part, the perimeter of the mold cavity.

A metal casting system includes a cope mold portion, a drag mold portion, and a mold cavity. The cope mold portion comprises internal cope mold walls. The drag mold portion comprises internal drag mold walls. The cope mold portion and the drag mold portion comprise a molding material comprising a plurality of metal particles.

The mold cavity is representative of a mold pattern, wherein the internal cope mold walls and the internal drag mold walls define, at least in part, the perimeter of the mold cavity.

A casting process of a central rotary joint includes the steps of obtaining an upper casting mold, a lower casting mold, and a sand core through 3-dimensional printing, inserting the chill into the sand core, placing the sand core with the chill in the lower mold, inverting the upper mold onto the lower mold to form a assembled mold and define a casting cavity and a vertical pouring channel connected to the casting cavity between the upper and lower molds, injecting liquid iron into the casting cavity through the vertical pouring channel, unmolding after the liquid iron is condensed to obtain the central rotary joint. Through the vertical pouring channel, the chill and related processes, the sequential solidification of the liquid iron is achieved, effectively avoiding deformation and shrinkage porosity caused by the shrinkage of the liquid iron and graphite expansion during the solidification process.

A casting process of a central rotary joint includes the steps of obtaining an upper casting mold, a lower casting mold, and a sand core through 3-dimensional printing, inserting the chill into the sand core, placing the sand core with the chill in the lower mold, inverting the upper mold onto the lower mold to form a assembled mold and define a casting cavity and a vertical pouring channel connected to the casting cavity between the upper and lower molds, injecting liquid iron into the casting cavity through the vertical pouring channel, unmolding after the liquid iron is condensed to obtain the central rotary joint. Through the vertical pouring channel, the chill and related processes, the sequential solidification of the liquid iron is achieved, effectively avoiding deformation and shrinkage porosity caused by the shrinkage of the liquid iron and graphite expansion during the solidification process.

An example insulation enclosure for cooling a mold includes a support structure having a top end, a bottom end, and an interior, the bottom end defining an opening for receiving a mold within the interior of the support structure, and insulation material supported by the support structure and extending at least from the bottom end to the top end, wherein one or more thermal properties of at least one of the support structure and the insulation material varies longitudinally from the bottom end to the top end. In some cases, the one or more thermal properties are further varied about a circumference of the support structure.

An example insulation enclosure for cooling a mold includes a support structure having a top end, a bottom end, and an interior, the bottom end defining an opening for receiving a mold within the interior of the support structure, and insulation material supported by the support structure and extending at least from the bottom end to the top end, wherein one or more thermal properties of at least one of the support structure and the insulation material varies longitudinally from the bottom end to the top end. In some cases, the one or more thermal properties are further varied about a circumference of the support structure.