Self-compression centrifugal pouring die

Abstract

The invention relates to a self-compression centrifugal pouring die for simultaneously pouring a plurality of spherical and square castings. The self-compression centrifugal pouring die comprises disc-shaped upper and lower dies. The center of the upper die is provided with a pouring gate. A plurality of die cavities which are radially distributed by taking the pouring gate as the center are arranged between the upper and lower dies. All the die cavities are communicated with each other by pouring channels. The outer circumference of the upper die is symmetrically provided with at least one pair of balanced wings. The top of each balanced wing is a plane. The section outline of the bottom of each balanced wing is a curve arching up downward. The invention can improve the pouring quality, and has convenient operation, strong heat dissipation capacity and high production efficiency.

Description

technical field [0001] The invention relates to a self-compacting centrifugal casting mold for simultaneously pouring a plurality of spherical, square and other castings. Background technique [0002] The mold includes a disc-shaped upper mold and a lower mold. The center of the upper mold is provided with a gate, and a radially distributed sprue with the gate as the center is arranged between the upper mold and the lower mold. There are multiple sprues arranged at intervals on the sprue. The mold cavities are connected through sprues. The existing centrifugal casting mold of this type of structure mainly has the following defects: [0003] 1. During the use of the mold, the upper and lower molds rotate at high speed. Due to the vibration and air flow force, the upper mold is often lifted from the lower mold, thus affecting the quality of the casting. [0004] 2. Since one end of the radial runner is closed, the exhaust is not smooth during the pouring process, which affec...

AI Technical Summary

Problems solved by technology

[0003] 1. During the use of the mold, the upper and lower molds rotate at high speed. Due to vibration and airflow power, the upper mold is often lifted from the lower mold, thus affecting the quality of the casting

[0004] 2. Since one end of the radial runner is closed, the exhaust is not smooth during the pouring process, which affects the forming quality of the casting

[0005] 3. The heat dissipation capacity of the mold is not strong, and the cooling speed is slow during pouring, so that the quality of the casting is greatly affected by the thermal expansion and contraction of the mold, and also reduces the pouring production efficiency

During the casting process, the mold expands due to heat, and the relative displacement between the upper and lower molds cannot be effectively compensated, resulting in arching and deformation of the mold, which affects the quality of the casting; in addition, it requires high precision for mold matching and is difficult to manufacture and assemble. bigger

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