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A fan-shaped pressure cone riser for casting and its casting method

A pressure, fan-shaped technology, applied in casting molding equipment, mold, mold composition, etc., can solve the problems of reducing the feeding distance of the riser, reducing the effective height of the riser, and unable to solve the shrinkage defects of the casting, and achieve feeding The effect is good, the horizontal section is uniform, and the effect of preventing pressure drop

Active Publication Date: 2021-01-15
苏州石川制铁有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the general triangular prism-shaped pressure cone will reduce the effective height of the riser, reduce the feeding distance of the riser, and cannot solve the shrinkage cavity defect in the part of the casting that is not easy to be fed.

Method used

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  • A fan-shaped pressure cone riser for casting and its casting method
  • A fan-shaped pressure cone riser for casting and its casting method
  • A fan-shaped pressure cone riser for casting and its casting method

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0023] see Figure 2-4 As shown, a fan-shaped pressure cone riser for casting includes a base 1 connected to the casting body and a pressure part 2 above the base. One side of the pressure part is provided with a pressure cone 3 with a fan-shaped horizontal section. Due to the pressure The cone is arranged on the side, and the pressure cone 3 is a fan-shaped gap cut along the side of the cylindrical pressure part 2, such as figure 2 , 3 As shown, the pressu...

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Abstract

The invention discloses a sector-shaped pressure cone riser for casting and a casting method of the sector-shaped pressure cone riser. The sector-shaped pressure cone riser comprises a base part connected with a cast and a pressure part positioned above the base part. A pressure cone with the sector-shaped horizontal section is arranged on one side of the pressure part. A mold cavity for containing molten metal is formed in the base part and the pressure part. The molten metal flows into the cast along the base part under the action of the pressure cone. As the sector-shaped pressure cone is arranged at the side part, the horizontal section of the pressure part is uniform, and the top part is large, so that pressure can be effectively generated, and top sealing of the pressure part in theprior art can be avoided as well. Due to the fact that the top of the pressure part of the sector-shaped pressure cone riser solidifies more slowly compared with the top of a riser in the prior art, the pressure drop caused by the top solidification can be effectively prevented, and the feeding effect is better.

Description

technical field [0001] The invention relates to a new riser used in casting, in particular to a riser with fan-shaped pressure cone and its casting method. Background technique [0002] The main function of the riser is to feed shrinkage. Since the cooling and forming process of the casting will produce volume shrinkage, the riser will supply molten iron when the casting is formed to prevent internal defects such as shrinkage cavities and shrinkage porosity. Generally, the riser will have a triangular prism-shaped pressure cone on the top, such as figure 1 , the pressure cone increases the static pressure at the top of the riser, the riser is not easy to cap, and the utilization rate of the riser molten iron is increased. However, the general triangular prism-shaped pressure cone will reduce the effective height of the riser and reduce the feeding distance of the riser, and cannot solve the shrinkage cavity defect in the part of the casting that is not easy to be fed. Con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C9/08B22C9/02C21C1/10
CPCB22C9/02B22C9/088C21C1/105
Inventor 王莹麟施伟群伊绵森
Owner 苏州石川制铁有限公司
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