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The Improved Process of Belt Pulley Casting and Its Pouring System

A pouring system and pulley technology, which is applied in the direction of manufacturing tools, casting molding equipment, casting molds, etc., can solve the problems affecting the internal quality of castings and process yield, cumbersome processing operations, increasing the amount of molten iron, etc., to achieve the stability of the casting process , high process yield, and the effect of reducing turbulent flow

Active Publication Date: 2018-11-20
DALIAN JINHE CASTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of design scheme not only increases the amount of molten iron, cumbersome subsequent processing operations, and increases production costs; it is also easy to introduce external impurities and gases from the riser, forming inclusions and pore defects inside the casting, seriously affecting the internal quality of the casting and process yield

Method used

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  • The Improved Process of Belt Pulley Casting and Its Pouring System
  • The Improved Process of Belt Pulley Casting and Its Pouring System
  • The Improved Process of Belt Pulley Casting and Its Pouring System

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Embodiment Construction

[0020] Product Name Elevator Ditch Wheel, Material Ductile Iron FCD550.

[0021] In the improved process of belt pulley casting, molten iron enters from the bottom of the cavity of the middle rib plate through the inner gate 5 during the pouring process.

[0022] The gating system adopting the above-mentioned improved process includes a sprue 1, a sprue 2, an arc-shaped sprue 3 and several sub-runners 4; one end of the sprue 2 is connected to the sprue 1, and the other end of the sprue 2 is connected to The upper part of the arc-shaped runner 3 and the lower part of the arc-shaped runner 3 are connected to one end of a plurality of sub-runners 4, and the other ends of the plurality of sub-runners 4 are connected to the cavity 6 of the middle rib.

[0023] Three runners 4 are provided, and the runners are L-shaped.

[0024] The other ends of the several runners 4 are connected to the bottom of the cavity 6 of the middle rib.

[0025] In the existing pulley casting process, th...

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Abstract

The invention relates to the technical field of belt wheel production, in particular to an improved technology for belt wheel casting and a pouring system of the improved technology. In the pouring process of the pouring system, molten iron enters from the bottoms of middle rib plate cavities via inner pouring gates. The pouring system adopting the above improved technology comprises a sprue gate, a sprue, a circular arc pouring gate and a plurality of branch pouring gates. One end of the sprue is connected with the sprue gate, and the other end of the sprue is connected with the upper portion of the circular arc pouring gate. The lower portion of the circular arc pouring gate is connected with one ends of the multiple branch pouring gates, and the other ends of the multiple branch pouring gates are connected to the middle rib plate cavities. According to the improved technology and the pouring system, no dead head is needed for feeding, shrinkage cavities and shrinkage porosity do not happen, the technology is easy to operate, and the production rate of the technology is high.

Description

technical field [0001] The invention relates to the technical field of pulley production, in particular to an improved process for casting a pulley and a pouring system thereof. Background technique [0002] The belt pulley belongs to the disc and hub parts. As the main supporting part of the transmission system, the development of the belt pulley is the top priority of this industry and the entire industrial production. In the existing pulley casting process, the inner gate enters from the outside, or enters from the inner ring and outer circle of the bottom edge. After casting, the outer circle and inner hole have different degrees of shrinkage, and the addition of risers to the upper box cannot completely solve the shrinkage problem. , and the process operation is complex. [0003] Generally, the riser design mainly depends on the shape of the casting and the experience of the master worker, which is intended to supplement the molten iron and reduce hole defects. This t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C9/08B22C9/28
CPCB22C9/082B22C9/28
Inventor 马广华张申全寇富晓
Owner DALIAN JINHE CASTING
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