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Metal low-pressure casting mold

A low-pressure casting and metal mold technology, which is applied in the field of casting molds, can solve problems such as waste products and abnormal exhaust, and achieve the effects of reducing gas production, simple structure, and volume reduction

Active Publication Date: 2013-09-25
HAIMEN HUHAI NONFERROUS CASTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] There are two major exhaust problems in the production of metal mold low-pressure casting, one is the cavity exhaust, the other is the use of the outer metal mold inner sand core, the sand core is heated during the casting process, if the exhaust problem cannot be solved , will cause a lot of waste due to internal gas
The traditional method is to open vent holes on the upper mold, so that the vent holes will be blocked by metal water during the casting process due to the short distance between the vent holes and the cavity inside the mold, so that the normal venting will not be possible. , resulting in waste

Method used

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  • Metal low-pressure casting mold

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Embodiment Construction

[0012] like figure 1 As shown, the metal type low-pressure casting mold of the present invention comprises a bottom plate 1, a left and right mold 2, a sand core 5, a keel 4, a bolt 6 and an upper mold 7.

[0013] There is a low-pressure pouring port in the middle of the bottom plate 1, and the outer edge is concave.

[0014] Upper mold 7 is arranged on left and right mold 2 upper ends, and keel 4 is arranged on the inner side of left and right mold 2 and is connected and fixed with upper mold 7 by bolt 6, and sand core 5 is arranged on the outside of keel 4 and is fixed.

[0015] The keel 4 is a hollow cylinder with air holes evenly distributed on the outer surface, a vertical through hole is opened in the middle of the bolt 6, and exhaust gas is opened at equal intervals from top to bottom at the connection of the Huff structure of the left and right molds 2 hole.

[0016] Such a structure, when in use, applies pressure to the molten metal in the crucible, then enters the ...

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Abstract

The invention discloses a metal low-pressure casting mold which is characterized by comprising a base plate, a left-right mold, sand cores, a keel, a bolt and an upper mold. A casting port is arranged in the middle of the base plate, the outer side of the upper surface is recessed, the left-right mold is arranged in the recessed portion and is of a Hough structure, and air exhaust holes are formed in the connection position of the Hough structure. The upper mold is arranged at the upper end of the left-right mold, and the keel is arranged on the inner side of the left-right mold and is connected with the upper mold through the bolt. A vertical through hole is formed in the bolt, the sand cores are arranged on the keel, and air holes are evenly formed in the keel. The metal low-pressure casting mold has the advantages of being simple in structure and convenient to use, saving consumption of sands of the sand cores by aid of the keel structure, reducing the sand core air generation amount and being smooth in air exhausting without being blocked.

Description

technical field [0001] The invention relates to a casting mold, in particular to a metal type low-pressure casting mold. Background technique [0002] There are two major exhaust problems in the production of metal mold low-pressure casting, one is the cavity exhaust, the other is the use of the outer metal mold inner sand core, the sand core is heated during the casting process, if the exhaust problem cannot be solved , will cause a lot of waste due to internal gas. The traditional method is to open vent holes on the upper mold, so that the vent holes will be blocked by metal water during the casting process due to the short distance between the vent holes and the cavity inside the mold, so that the normal venting will not be possible. , resulting in waste. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a metal type low-pressure casting mold with good exhaust effect and without blocking the exhaust holes. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D18/04
Inventor 刘勇周素洪翟峰翟春江许丽英
Owner HAIMEN HUHAI NONFERROUS CASTING
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