High-stability hot pressure injection forming system

Abstract

The invention belongs to the field of ceramic material forming and particularly relates to a high-stability hot pressure injection forming system. The high-stability hot pressure injection forming system comprises a constant temperature heater, a heating trough, a mold, slurry and the like. The heating trough is of an interlayer structure. A slurry containing trough is arranged in the heating trough, and the slurry is contained in the slurry containing trough. A heating medium is injected into an interlayer of the heating trough. The constant temperature heater is attached to the periphery of the heating trough. A heating medium liquid level monitoring device is further arranged on one side of the heating trough. The slurry containing trough is sealed through a material storage cover located at the top of the heating trough. The mold is tightly arranged on the upper surface of the material storage cover. One end of a slurry conveying pipe penetrates through the material storage cover to communicate with the mold, and the other end of the slurry conveying pipe extends into the inner bottom end of the heating trough. A through hole lead-in gas path system is further arranged at the upper end of the heating trough. Through the high-stability hot pressure injection forming system, the heating medium liquid level can be monitored at any time, a proper amount of the heating medium is injected as required, and the heating efficiency and process parameter-product performance stability are improved.

Description

technical field [0001] The invention belongs to the field of ceramic material molding, and more specifically relates to a high-stability hot-press injection molding system, which can monitor the liquid level of the heating medium at any time and pour in an appropriate amount of heating medium as needed to improve heating efficiency and process parameters-products Stable performance. Background technique [0002] The basic purpose of the hot pressure injection system is to inject the waxy slurry with a certain solid content into the cavity of the mold under pressure to form a blank with a specific shape after condensation. It is widely used in the batch manufacturing process of hollow blade cores of aeroengine gas turbines. Especially when the inner hole of the turbine hollow blade is complex and fine and the edge is as thin as 0.3mm, the ceramic core for investment casting with good surface quality, high dimensional accuracy and complex shape can be obtained in batches by u...

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Problems solved by technology

[0005] Aiming at the above defects or improvement needs of the prior art, the present invention provides a highly stable hot pressure injection system, which overcomes the problems caused by equipment factors by setting a heating medium liquid level monitoring device, a solid mold ring and a temperature sensor. The problem of unstable manufacturing process parameters and low yield of corresponding hollow blade products improves the heating efficiency and the stability of process parameters-product performance, reduces the cumbersome steps of disassembling the casing and heating device, and is especially suitable for hollow blades of gas turbines such as aero engines. Mass production of blade cores

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