Water turbine sleeve casting mould assembling box

A water turbine and sleeve technology, applied in the direction of mold box, mold, mold composition, etc., can solve the problems of blocked sand core exhaust, unstable molten iron flow, and no shrinkage, shrinkage and cracks in castings. Easy to shape, reasonable structure, reduce the effect of local overheating

Inactive Publication Date: 2012-11-28
张年生
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Problems solved by technology

[0002] The sleeve is a long tube type casting, which requires high finish and dimensional accuracy after processing. Therefore, the casting must not have shrinkage cavities, shrinkage porosity and cracks. The traditional cas

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  • Water turbine sleeve casting mould assembling box

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[0009] In order to deepen the understanding of the present invention, the present invention will be described in further detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0010] Such as figure 1 Shows an embodiment of the combination box of the sleeve mold of the water turbine of the present invention, including the sand box 1, the sand box 1 is uniformly provided with sand molds 5, the sand box 1 is provided with castings 2, and the upper end of the casting 2 is provided with an annular riser There is an air outlet 4 between the mouth 3, the riser 3 and the upper end of the sand box 1, which penetrates the air outlet 4, the riser 3, and the casting 2 with a sand core 5. The upper end of the sand core 5 is placed outside the sand box 1. The lower end of the core 5 passes through the casting 2 and is placed inside the sand b...

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Abstract

The invention relates to a water turbine sleeve casting mould assembling box, comprising a sand box. Sand moulds are uniformly arranged in the sand box; a casting part is arranged in the sand box; the upper end of the casting part is provided with an annular casting head; an air outlet hole is arranged between the casting head and the upper end of the sand box; a sand core penetrates through the air outlet hole, the casting head and the casting part; the upper end of the sand core is arranged at the outside of the sand box; the lower end of the sand core passes through the casting part and is arranged in the sand box; a core tube is arranged in the sand core; the lower end of the sand core is provided with a horizontally placed side gate; a first flow gate is arranged between the side gate and the lower end of the casting part; one end of the side gate is provided with a vertically placed sprue gate; the upper end of the sprue gate is connected with a pouring cup penetrating through the sand box; the upper end of the pouring cup is arranged outside the sand box; and a plurality of second flow gates placed obliquely are arranged between the outer wall of the casting part and the sprue gate. The water turbine sleeve casting mould assembling box has the advantages of reasonable structure and convenience for modeling, and guarantees an internal circle machining face of a sleeve without casting flaw.

Description

Technical field: [0001] The invention relates to a hydraulic turbine sleeve casting mold combination box. Background technique: [0002] The sleeve is a long tube type casting, which requires high finish and dimensional accuracy after processing. Therefore, the casting must not have shrinkage cavities, shrinkage porosity and cracks. The traditional casing structure of the hydraulic turbine sleeve mold is too simple, the flow of molten iron is not stable, and the sand Core exhaust is blocked, and castings are prone to slag inclusions, sand inclusions, sand holes and pores. Invention content: [0003] The object of the present invention is to overcome the above disadvantages, and provide a hydraulic turbine sleeve casting mold box with reasonable structure, convenient modeling, and ensuring that the inner circle processing surface of the sleeve has no casting defects. [0004] The purpose of the present invention is achieved through the following technical solutions: a hydr...

Claims

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Application Information

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IPC IPC(8): B22C21/00B22C9/08
Inventor 张年生
Owner 张年生
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