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Air-cooled sand core system for casting wind power castings

An air-cooled, casting technology, used in casting molding equipment, molds, cores, etc., can solve problems such as difficult process control, avoid coarse grains, optimize matrix structure, and reduce cooling time differences. Effect

Inactive Publication Date: 2019-11-29
SHANGHAI NO 1 MACHINE TOOL FOUNDRY SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially for casting cavities with irregular shapes, there is currently no good way to cool them. In order to ensure the quality of castings, it can only be achieved through high requirements on the casting process, which is more difficult to control.

Method used

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  • Air-cooled sand core system for casting wind power castings
  • Air-cooled sand core system for casting wind power castings
  • Air-cooled sand core system for casting wind power castings

Examples

Experimental program
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Embodiment Construction

[0016] Below in conjunction with accompanying drawing and specific embodiment this case is further described:

[0017] like Figure 1~2 , a wind power casting (such as image 3 ) an air-cooled sand core system for casting, the core is made of a metal framework wrapped in sand mixed with a sand binder; the structure of the metal framework is:

[0018] Including multiple groups of inlet pipes and outlet pipes, each group of inlet pipes and outlet pipes: the inlet pipe is set in the outlet pipe, the gap between the two is the outlet channel, and the end of the outlet pipe is closed;

[0019] The head ends of each group of air outlet pipes are connected to the same closed hollow cylinder; a main air intake pipe is inserted into the hollow cylinder from the top, and is connected with the air inlet of each group of near-term pipes; a main air outlet pipe is inserted into the hollow cylinder from the top , and the air inlet of the air outlet manifold is at the top of the hollow cyl...

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Abstract

The invention relates to an air-cooled sand core system for casting wind power castings. A mold core is formed in a manner that a metal skeleton is wrapped with molding sand doped with a molding sandbinder. The structure of the metal skeleton is characterized by including multiple groups of air inlet pipes and air outlet pipes, wherein in each group of air inlet pipe and air outlet pipe, the airinlet pipe is sleeved with the air outlet pipe, an air outlet channel is arranged in a gap between the air inlet pipe and the air outlet pipe, and the tail end of the air outlet pipe is closed; the head ends of the air outlet pipes in all groups are connected to one same closed hollow cylinder; one air inlet manifold is inserted into the hollow cylinder from the top and is connected to air inletsof all groups of air inlet pipes; and an air outlet manifold is inserted into the hollow cylinder from the top, and an air inlet of the air outlet manifold is formed in the top of the hollow cylinder.According to the principle and effect of the technical scheme, cold air enters the hollow part of the mold core, heat is taken away for cooling, and the problem about cooling of molten iron at the special position is better solved.

Description

technical field [0001] The invention belongs to the technical field of casting, and in particular relates to an air-cooled sand core system for casting wind power castings. Background technique [0002] In the prior art, when a casting with a hole in the middle is cast, the hole part is mostly formed by a core. The core is placed in the cavity before casting. After the molten iron is poured and condensed, it is taken out / cleared when the sand is released, and the cavity corresponding to the opening can be formed in the casting. The cooling of molten iron has a great influence on the quality of castings. The most ideal state is that all parts of the molten iron in the cavity are cooled synchronously. In practice, this is impossible, and the usual way is to optimize the cooling effect of each part as much as possible through cavity design. However, due to the large volume of the castings of wind power products, in most cases, the position of the core is surrounded by molten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/10B22D27/04
CPCB22C9/10B22D27/04
Inventor 仇璟韬
Owner SHANGHAI NO 1 MACHINE TOOL FOUNDRY SUZHOU