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Edging blind riser for casting

A technology of concealed riser and welt, which is used in casting molding equipment, molds, cores, etc., can solve the problems of reducing the qualified rate of castings, unable to solve shrinkage porosity, and reducing the quality of castings, so as to improve the quality and structure of casting products. Simple, effective results

Pending Publication Date: 2020-04-21
TIANJIN HANGYU METAL PROCESSING
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the field of pouring technology, ordinary risers can only use cylindrical risers, elliptical risers, square risers, and random risers, which cannot solve the problem of shrinkage porosity limited by some positions and wall thicknesses.
The defects of casting shrinkage porosity reduce the quality of castings, and also reduce the qualified rate of castings

Method used

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  • Edging blind riser for casting
  • Edging blind riser for casting
  • Edging blind riser for casting

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0019] Such as Figure 1 to Figure 7 As shown, a welted riser for pouring includes a riser body 1, which is characterized in that the riser body 1 is arranged on the lower mold 2, and the riser body 1 includes an arc-shaped groove 3, two Feeding channel 4 and two feeding holes 5, the two feeding holes 5 are connected to the arc-shaped groove 3 through the feeding channel 4, the side 1 of the riser body of the lower mold 2 is attached to the product 6 port Closed, and the feeding hole 5 is aligned with the control boss of the product 6 port, and the arc-shaped groove 3 of the dark riser body 1 is provided with a sand core riser 7.

[0020] The sand core riser 7 is located in the inner cavity of the product 6 and is attached to the side wall of the inner cavity of the product 6 .

[0021] The sand core riser 7 is provided with a tapered hole 8 , and the taper...

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Abstract

The invention relates to an edging blind riser for casting. The edging blind riser for casting comprises a blind riser body which is arranged on a lower mold; the blind riser body comprises an arc-shaped groove, two feeding channels and two feeding machining holes, the two feeding machining holes communicate with the arc-shaped groove through the feeding channels, the blind riser body side of thelower mold fits a product port, and the feeding machining holes are aligned with control bosses of the product port; and the arc-shaped groove of the blind riser body is provided with a sand core riser. The arc-shaped groove, the feeding channels and the feeding machining holes are combined into the tadpole-shaped edging blind riser which is simple in structure, stable and durable, the problem ofshrinkage porosity of the control bosses is fundamentally solved, the quality of a cast product is improved accordingly, and the effect is very obvious. The shrinkage porosity of 90% before modification is reduced to zero shrinkage porosity at the control bosses after modification.

Description

technical field [0001] The invention relates to the technical field of pouring, in particular to a welted blind riser for pouring. Background technique [0002] In the field of pouring technology, ordinary risers can only be fed with cylindrical risers, elliptical risers, square risers, and random risers, which cannot solve the problem of shrinkage porosity limited by some positions and wall thicknesses. The defects of casting shrinkage porosity reduce the quality of castings, and also reduce the qualified rate of castings. Contents of the invention [0003] The invention aims to solve the deficiencies of the prior art, and provides a welted blind riser for pouring. [0004] In order to achieve the above object, the present invention adopts the following technical solutions: a welted riser for pouring, including a riser body, which is characterized in that the riser body is arranged on the lower mold, and the riser body includes an arc-shaped concave Groove, two feeding ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/08
CPCB22C9/088
Inventor 吴兴阳
Owner TIANJIN HANGYU METAL PROCESSING
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