Tea pot type sealing spheroidization casting bag

Abstract

The invention relates to a dam type sealing nodularized pouring ladle which comprises a dam type ladle body, a ladle cover and a guiding cup. The ladle cover is arranged under the guiding cup, is fixedly welded with the guiding cup and is provided with a taper ring-stiffened which is integrated with the ladle cover; the lower side of the ring-stiffened external ladle cover is provided with a double-ring sandwich asbestos sealing ring. The integral structure of a nodularized ladle and the pouring ladle of the invention has compact structure, is rational, sealed, and has good nodularization effect, stable quality and low production cost; the operation of the invention is simple, utilization ratio of nodularizer can be improved, the production cost can be reduced, pollution to the environment caused by the nodularization process can be reduced, and the nodularization and pouring processes are flexible and convenient; the invention is especially suitable for casting production lines with comparatively higher degree of automation.

Description

technical field [0001] The invention relates to a spheroidizing pouring device in the casting production process, in particular to a teapot-type sealed spheroidizing pouring ladle. Background technique [0002] We know that during the open spheroidization process of molten iron by rare earth iron-silicon-magnesium alloy, since the vapor pressure of Mg in the alloy is 1086-1419Kpa at 1450-1470°C, Mg will boil and evaporate violently in molten iron, and because Mg The affinity between elements and oxygen is extremely strong, so the evaporated Mg is particularly easy to be oxidized and burned, and 50-60% of Mg will be oxidized and burned and enter the atmosphere. At the same time, the contact between Re and oxygen is also increased during the "boiling" process Oxidation occurs and oxidized slag inclusions are formed. In the production of ductile iron parts in the world, 80-90% of the spheroidizing methods are the punching method, and the commonly used open punching method has ...

AI Technical Summary

Problems solved by technology

In the production of ductile iron parts in the world, 80-90% of the spheroidizing methods are the punching method, and the commonly used open punching method has the following shortcomings: the alloy utilization rate is low (only 30-40%), The production cost remains high; the spheroidization process of the intrusion method produces a large amount of smoke, light, and dust, which seriously pollutes the environment and is harmful to the operator's body and mind

Overseas also has cap-wrap spheroidizing devices with snap locks, but their complex structures, cumbersome operations, and low efficiency are not conducive to the application of efficient automatic molding lines

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