Up-drawing continuous casting apparatus and up-drawing continuous casting method
A technology for castings and components, which is applied in the field of upward-drawing continuous casting devices, can solve problems such as casting dimensional accuracy and surface quality cracking, and achieve the effects of excellent surface quality and excellent productivity
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Embodiment approach 1
[0049] First, refer to figure 1 The free casting device (uplift type continuous casting device) according to Embodiment 1 will be described. figure 1 It is a schematic cross-sectional view of the free casting device according to Embodiment 1. Such as figure 1 As shown, the free casting device according to Embodiment 1 includes a molten metal holding furnace 101 , a shape defining member 102 , an upward blowing gas nozzle 104 , an actuator 105 , a cooling gas nozzle 106 , and an upper drawing machine 108 . figure 1 The xy plane in constitutes the horizontal plane, and the z-axis direction is the vertical direction. More specifically, the positive direction of the z-axis is vertically upward.
[0050] The molten metal holding furnace 101 accommodates molten metal M1 such as aluminum or its alloy, for example, and keeps it at a predetermined temperature. exist figure 1In the example of , since the molten metal is not supplied to the molten metal holding furnace 101 during ca...
Embodiment approach 2
[0080] Next, refer to Figure 8 The free casting device according to Embodiment 2 will be described. Figure 8 It is a schematic sectional view of the free casting apparatus concerning Embodiment 2. also, Figure 8 The xyz coordinates in are also the same as figure 1 unanimous. In the free casting device according to Embodiment 1, the upward blowing gas nozzle 104 is formed above the shape defining member 102 . On the other hand, in the free casting device according to Embodiment 2, the upward blowing gas nozzle 204 is formed inside the shape defining member 202 . In other words, a flow path for blocking gas is formed inside the shape defining member 202 . In the free casting device according to Embodiment 2, space saving can be realized compared with the free casting device according to Embodiment 1 by forming a flow path for blocking gas inside the shape defining member 202 .
[0081] In the free casting device according to Embodiment 2, an upward blowing gas nozzle 20...
Embodiment approach 3
[0084] Next, refer to Figure 9 , the free casting device according to Embodiment 3 will be described. Figure 9 It is a schematic cross-sectional view of the free casting device according to Embodiment 3. also, Figure 9 The xyz coordinates in are also the same as figure 1 unanimous. In the free casting device according to Embodiment 1, the upward blowing gas nozzle 104 is formed above the shape defining member 102 . On the other hand, in the free casting device according to Embodiment 3, a blocking wall (convex portion) 302a for blocking the cooling gas branching downward along the surface of the casting M3 is formed. The blocking wall 302 a is formed above the shape defining member 302 in the vicinity of the end on the side of the molten metal passing portion 103 .
[0085] Here, the height of the blocking wall 302 a and the distance from the molten metal passing portion 103 are determined according to the shape of the casting M3 in the longitudinal direction. Specifi...
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