High-voltage switch aluminum magnesium alloy supporting cylinder sand core mold and assembling method thereof

Abstract

The invention discloses a high-voltage switch aluminum magnesium alloy supporting cylinder sand core mold and an assembling method thereof.The high-voltage switch aluminum magnesium alloy supporting cylinder sand core mold comprises a mold body, a first mold body, a material injection opening, a sand core, a limiting groove, a second rotating shaft, a second mold body and a rotary knob, the mold body is composed of the first mold body and the second mold body, and the sand core is arranged in the mold body; casting grooves are formed in the first mold and the second mold correspondingly, a first rotating shaft and a second rotating shaft are arranged at the two ends of the first mold and the two ends of the second mold correspondingly, an exhaust port is formed in one end of the sand core, material injection openings are formed in one side of the first mold and one side of the second mold correspondingly, and rotary knobs are arranged at the upper ends in the material injection openings. A spring is arranged at the lower end of the knob, and the lower end of the spring is connected with a sealing block. The mode that the mold body is combined with the sand core is adopted, the effect of guaranteeing normal discharge of air in the sand core in the casting process is achieved, the problem of shrinkage cavities can be effectively prevented, and the heat preservation effect on the injection port is better.

Description

technical field [0001] The invention relates to the technical field of casting molds, in particular to a high-voltage switch aluminum-magnesium alloy supporting cylinder sand core mold and an assembling method thereof. Background technique [0002] High-voltage switch, also known as high-voltage circuit breaker, is a kind of power equipment commonly used in power systems. It can not only cut off or close the no-load current and load current in high-voltage circuits, but also cut off the relay protection device when the system fails. Overload current and short-circuit current, it has quite perfect arc extinguishing structure and enough current breaking capacity. [0003] The support cylinder in the high-pressure switch, as the main support member of the high-pressure switch, is usually processed by casting. The traditional casting method generally adopts the low-pressure casting process. Due to pressure and exhaust and many other reasons, it is easy to produce shrinkage and s...

AI Technical Summary

Problems solved by technology

[0003] The supporting cylinder in the high-voltage switch, as the main supporting member of the high-voltage switch, is usually processed by casting. The traditional casting method generally adopts low-pressure casting technology. Due to many reasons such as pressure and exhaust, shrinkage and shrinkage are prone to occur. Holes, thus affecting the casting effect of the support cylinder, it is easy to cause the casting to be unusable

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