offer Control Pins And Spouts For Aluminium Casting

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Metal aluminium slabs or rolling ingot may be formed by a casting process which utilizes a vertically oriented mold situated above a large casting pit beneath the floor level of the metal casting facility. Liquid metal is poured through a spout into a mould, where the metal freezes to form a slab or ingot operation. The flow of metal through the spout is controlled by a control pin that is located within the spout. The control pin may be raised to increase the rate of flow of metal through automatic actuator, or lowered to decrease or interrupt the flow of metal. DPFS is the idea materials for control pins and spouts for slabs or ingots casting. It is able to withstand the high temperature of the molten metals,its extremely fine-grained,sintered composition of higher purity fused silica provides both outstanding wear properties and excellent thermal shoch resistance. Even so,DPFS can also be wetted and attacked by liquid aluminium,control pins made of this material therefore have to be provided with a non-stick protective coating Shell-94@ Blue made of Dsine. Special non-wetting coating prevents silica reacting and sticking with molten aluminium.The lower thermal mass and conductivity minimize the chance of freeze-ups during the start or at low metal flow rates. Features: ＊Low coefficient of thermal expansion ＊Low thermal mass and conductivity ＊Chemical inertness ＊Available in any reasonable geometry ＊Fine grain structure＊High hardness Advantages: ＊Excellent thermal shock resistance and dimensional stability ＊High strength ＊Thermal insulation,minimizes temperature loss ＊Long life,corrosion resistance ＊Cost effective,complex shape capability ●The materials（DPFS） due to have a high heat capacity and have to be pre-heated prior to commencement of the metal pouring operation, If the pin is not pre-heated, the molten metal can solidify upon contact with the control pin, thus blocking the spout. ●Particularly suit to Wagstaff@ Rolling Ingot Casting machines

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Guizhou Dsine Aluminium Technology & Equipments

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