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Casting unit and casting method

A core, molten metal technology, used in casting and molding equipment, molds, mold components, etc., can solve problems such as defects

Inactive Publication Date: 2012-05-23
MORIKAWA SANGYO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

then, castings containing remnants of vanishing patterns or soot must be considered defective

Method used

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  • Casting unit and casting method
  • Casting unit and casting method
  • Casting unit and casting method

Examples

Experimental program
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Embodiment Construction

[0055] An embodiment of a casting unit related to the invention is shown in figure 1 middle. exist figure 1 In the casting unit shown, two cores 12 and 12 are inserted in a metal flask 10 . Such as figure 2 As shown, each core 12 and 12 is formed from a pair of interconnected core molds 12a and 12b in which a cavity 14 is formed. Each ingate 16, which acts as a molten metal inlet for introducing molten metal into the cavity 14 of the core 12, is located on the upper inclined surface of the core 12, and is formed at the parting between the core molds 12a and 12b. Wire. The ingate 16 may be formed at an optional position other than the parting line according to the shape of the core 12 .

[0056] By coating the inner wall surface of the cavity 14 with a refractory mold coating agent, it is possible to cast using a high-temperature molten metal such as molten stainless steel.

[0057] Note that the pair of core molds 12a and 12b may be constructed of a shell mold, a self...

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PUM

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Abstract

Problems of a troublesome assembly and post-treatment after casting that a conventional casting unit in which a non-consumable sprue (16) is connected to a lost foam gate attached to a core has, are solved. Provided is a casting unit in which a plurality of cores (12) having molten metal inlets (16) which open into the surface of the cores and through which a molten metal is caused to flow into cavities (14) formed in the cores, and a lost foam pattern (20) which forms a sprue between each of the molten metal inlets (16) and a sprue cup (18) in which a molten metal is poured and which has a peripheral surface coated with a refractory mold coating agent are embedded in dry sand (24), except for the sprue cup (18). The cores which are adjacent to each other are connected to each other so that the plurality of cores (12, 12,).

Description

technical field [0001] The invention relates to a casting unit and a casting method. Background technique [0002] Conventional casting methods using a lost foam pattern composed of a resin such as styrene foam are known. [0003] In the above traditional casting method, using Figure 17 Casting unit shown. exist Figure 17 In the casting unit shown, dry sand 106 is stored in a metal flask 100, and a vanishing mold composed of resin such as styrene foam and including a product part 102 and a runner part 104 is provided in the runner part 104 except for The sprue cup 108 at the upper end is buried in dry sand. [0004] A tubular member 110 having a plurality of through-holes 110a, 110a... having a diameter smaller than the grain size of the dry sand 106 is inserted in the dry sand 106 to collect and discharge of decomposition gas. [0005] currently using Figure 17 In the conventional casting method of the casting unit shown, by pouring molten metal into the sprue cup 10...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/02B22C9/10
CPCB22C9/103B22C9/02B22C9/10
Inventor 寺岛宗好
Owner MORIKAWA SANGYO