Quantitative casting overflow device

Abstract

The invention provides a quantitative casting overflow device. The quantitative casting overflow device comprises a cup holder, an overflow channel, an overflow cup and a stripping opening, wherein the overflow channel penetrates through the cup holder in the vertical direction and is arranged at the center position of the cup holder; the overflow cup is located on the cup holder, is an annular groove formed by the overflow channel through surrounding and is of a basin-like structure; an upper opening of the overflow cup is lower than an upper opening of the overflow channel; and the strippingopening is formed in the bottom of the overflow cup and penetrates through the cup holder. According to the quantitative casting overflow device, an overflow solution is collected to enable the production to be safe and clean, due to the existence of the overflow channel, the liquid pressure of a gas port and a riser is increased, the density of the casting is improved, the risk of shrinkage porosity of the casting is reduced, the height of box feeding is reduced, the air permeability of a sand mold is improved, and the modeling efficiency is improved; and by observing the overflow of a metalsolution, the overflow weight of the metal solution is set through the process calculation, a quantitative overflow cup suitable for the casting process is designed, and the operating standards of the casting process is formulated and implemented, so that the process is standardized, and the process is visualized.

Description

technical field [0001] The invention relates to a quantitative casting overflow device. Background technique [0002] In the casting process, it is required to exhaust the slag and feed the riser during the filling process of the metal solution, and the metal solution that first enters the mold during the pouring process will cause air holes, slag holes, etc. due to factors such as temperature loss and metal oxidation. The risk of poor casting such as sand hole concentration and loss of feeding ability is extremely high, so the metal solution at the front end of the mold filling is generally discharged from the cavity through the gas and riser. [0003] There are three main problems in the current production: 1. In order to meet the requirements of discharging molten metal and ensuring the feeding capacity of the riser, the height of the upper box of the sand mold must be high enough, resulting in poor air permeability of the upper box of the sand mold, increasing the risk o...

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Problems solved by technology

[0003] There are three main problems in the current production: 1. In order to meet the requirements of discharging molten metal and ensuring the feeding capacity of the riser, the height of the upper box of the sand mold must be high enough, resulting in poor air permeability of the upper box of the sand mold, increasing the risk of poor casting, and also Resulting in a large workload of operators and low production efficiency; 2. The riser casting liquid enters the cavity from the casting port, and the liquid is discharged from the gas and riser to the ground. There is a high-temperature metal solution flowing everywhere in the production area, which will affect production. Environment, easy to cause fire, burns and other personal safety and production safety accidents, increase the risk of equipment failure, and it is difficult to recycle the overflow liquid; 3. The operator cannot confirm the overflow of the metal solution, so that the process stability of the pouring process cannot be guaranteed The casting flow rate is judged by experience, resulting in a certain difference in the performance of multiple products

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