Deliver hot top casting table machine match with 5tons melting furnace to India
casting mould for hot top casting machine
billet rewinder machine for hot top casting table
hydraulic station for hot top casting table
Dispatch 5inch 6m long billet hot top casting machine to India. match with 5tons melting furnace.
Hot top casting machine involves installing a heat-insulating hot-top hood made of refractory material at the upper part of the DC (direct water-cooled) casting mold, eliminating the traditional funnel and achieving lateral flow supply. The metal liquid level inside the hot-top remains at the same height as the level in the flow plate, ensuring constant static pressure of the molten aluminum and reducing the solidification position of the melt in the mold. This enables stable low-mold casting and level casting. The hot-top casting mold primarily consists of two parts: a heat-insulating hot-top section, which maintains the temperature of the melt and keeps the upper molten metal level in the ingot; and a non-insulated cooling section (i.e., the effective crystallization zone), typically only 20–50 mm in height, responsible for shaping the ingot .
This technology of hot top casting table can increase the cooling rate of the ingot, reduce the depth of the liquid hole and narrow the transition zone, thereby improving the density, microstructure uniformity, and uniform distribution of chemical composition along the ingot cross-section. Due to the small height of the mold cooling section and the strong countercurrent cooling effect of secondary cooling water, it can effectively prevent the secondary remelting of the solidified shell, thereby inhibiting the formation of segregation lumps; it also prevents premature cooling of the molten metal surface, stabilizes the two-phase zone, effectively suppresses cold shuts, and reduces the extent and depth of inverse segregation in the peripheral layer of the ingot. However, hot top casting imposes stricter requirements on the precision of mold design and process parameters (such as casting speed and temperature)
hot top casting table drive also have steel rope type and hydraulic type
hot top casting table work in customer factory
On the basis of hot top casting, the method of adding an oil air lubrication system for casting.
This technology supplies gas (sometimes mixed with lubricating oil) between the crystallizer and molten metal to form a layer of air cushion or lubricating layer, reducing direct contact and friction between the metal and the crystallizer, minimizing heat dissipation from the crystallizer, with the majority of heat dissipation achieved through direct water cooling.
Airslide casting has the characteristics of fast casting speed, ingot surface smoothness close to electromagnetic casting, and lower equipment investment.
This technology also has the characteristics of thin shell and uniform grain structure. Its environmental advantages include minimizing fuel and water consumption, high extrusion speed in subsequent processing, and shortened homogenization time.
Practical applications have shown that the gas slip casting technology can basically eliminate surface segregation tumors on ingots, reduce cold shut problems by about 80%, reduce reverse segregation layers by more than 60%, increase casting speed by about 25%, significantly improve production capacity per unit time, and improve material utilization in subsequent processing.
Melting furnace can be fixed type and tilting type, casting machine can be hot top casting machine or airslip type casting , send us your requirement, supply machine layout design and details offer
Right now hot top casting table is more popular in the market because of easy operation and lower price,more and more customer require airslip casting table.
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