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Pouring system device and pouring method for iron based sand coated cast brake drums

A technology of iron mold sand-covered casting and pouring system, which is applied to casting molding equipment, molds, cores, etc., can solve the problems of defective castings, inconvenient cleaning, shrinkage and other problems, and achieves large static pressure head, cleaning and removal. Convenient, low air pressure effect

Inactive Publication Date: 2016-07-13
浙江省机电设计研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this patent can produce castings, there will be shrinkage cavities and porosity in different degrees, and the castings will also have defects, which is inconvenient to clean, so it still has the above defects

Method used

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  • Pouring system device and pouring method for iron based sand coated cast brake drums
  • Pouring system device and pouring method for iron based sand coated cast brake drums
  • Pouring system device and pouring method for iron based sand coated cast brake drums

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Embodiment Construction

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are explanations of the present invention and the present invention is not limited to the following examples.

[0026] Example.

[0027] see Figure 3 to Figure 7 The sprue 2 and the inrunner 3 in the gating system device of the iron-type sand-covered casting brake drum are connected to each other. The overflow riser 4 is arranged at the other end of the inner circle of the upper end of the brake drum casting 1, and the exhaust overflow The groove 5 is arranged on one side of the overflow riser 4 .

[0028] The filter screen 6 in this embodiment is arranged under the sprue 2 , and the wedge is arranged at the overflow edge of the overflow riser 4 close to the inner circle of the brake drum casting 1 .

[0029] The height H of the inrunner 3 in this embodiment is 3-5 mm, the width is 80 mm, the diameter of the overflow riser...

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Abstract

The invention relates to a pouring system device and a pouring method for iron based sand coated cast brake drums, and belongs to the field of machinery.The pouring system device comprises an overflow riser, an exhaust overflow groove, a sprue and an ingate.The sprue and the ingate are connected with each other, the overflow riser is arranged at an end of an inner circle of the upper end of a brake drum casting, and the exhaust overflow groove is formed in a side of the overflow riser.The pouring system device and the pouring method have the advantages that the pouring system device is reasonable in structure and low in cost, exhausting and cleaning can be facilitated, pouring can be facilitated by the pouring method, and the casting is high in quality.

Description

technical field [0001] The invention relates to a pouring system device and a pouring method, in particular to a pouring system device and a pouring method for an iron mold sand-covered casting brake drum, which belongs to the field of machinery. Background technique [0002] Iron mold sand-coated casting is one of the special castings. The mold is formed by covering the inner cavity of the metal mold with a thin layer of coated sand. Sand-covered casting of iron molds to produce brake drums is an energy-saving and material-saving production method, which has been adopted by many brake drum casting manufacturers. [0003] Structural characteristics of brake drum castings, iron mold sand-covered casting brake drums generally adopt one piece one pouring, top pouring pouring method, as attached figure 1 As shown, the cross-shaped pouring system 1-1 is adopted, the ingate is a cross-shaped ingate 2-2, and the brake drum part 3-3 is obtained, that is, the gate position is at the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/06B22C9/08B22C9/24
CPCB22C9/068B22C9/086B22C9/088B22C9/24
Inventor 潘东杰黄列群夏小江沈永华应浩朱丹高强胡鸿斌费巍峻汤瑶
Owner 浙江省机电设计研究院有限公司
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