Hard die riser used for gravity casting pouring and casting method thereof

Abstract

The invention discloses a hard die riser used for gravity casting pouring and a casting method thereof. The hard die riser comprise a pouring shell, a pouring assembly, a local cooling assembly and a die opening assembly; the pouring shell comprises a shell body, an exhaust hole formed in the upper surface layer of the shell and a discharging opening formed in the position, adjacent to the exhaust hole, of the upper surface layer of the shell, the pouring assembly comprises a sprue cup arranged on the side of the shell, a gate sprue fixedly connected with the sprue cup and a cross gate in series connection with the gate sprue, the local cooling assembly comprises cross chilling blocks arranged on the two sides of the shell, the die opening assembly comprises a table board on the upper portion of the shell, a cushion block arranged on the upper portion of the table board and an air cylinder adjacent to and matched with the cushion block. A filter device is designed in the sprue cup, the cross chilling blocks and vertical chilling blocks are locally designed, the local cooling speed is increased, a pneumatic die opening tool is designed, manual die opening is not needed, dual pouring gates are designed, pouring liquid can be rapidly distributed, and the pouring effect is improved.

Description

technical field [0001] The invention relates to a die riser and a casting method thereof, in particular to a die riser for gravity casting and a casting method thereof. Background technique [0002] A riser is a supplementary part added to the top or side of a casting to avoid defects in the casting. Function In the casting mold, the cavity of the riser is a cavity for storing liquid metal. When the casting is formed, the metal is supplied to prevent shrinkage, shrinkage, exhaust and slag collection. The main function of the riser is feeding. Risers with different design functions have different forms, sizes and opening positions. [0003] Traditional risers are mainly divided into three categories. Ordinary risers: risers made of ordinary molding materials are called ordinary risers; insulation risers: risers made of insulation materials are called insulation risers. The riser has a long solidification time and saves metal; heating riser: adding a heating agent to the ma...

AI Technical Summary

Problems solved by technology

[0004] However, in the existing casting and pouring hard mold riser, the sprue cup is not equipped with a filter assembly, impurities will appear after the pouring is completed, and the local area cannot be cooled quickly, and the mold needs to be opened manually after the pouring is completed, which wastes a lot of manpower and affects work efficiency, and the existing pouring is generally based on the sprue, which cannot quickly distribute the pouring liquid, thus affecting the pouring effect

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