High-temperature-resistant and wear-resistant nanometer ceramic valve plate and process thereof

Abstract

The invention discloses a high-temperature-resistant and wear-resistant nanometer ceramic valve plate and a process thereof. The steps of castable preparing, material detecting, manufacturing of a heat-resisting steel supporting frame and a valve plate mold shell, installing of a plastic cap, pouring and forming, curing, one-time low-temperature baking, second-time high-temperature firing, finished product acceptance check and the like are adopted. Before baking and firing are carried out, the step of installing the plastic cap is added, after firing is carried out, the plastic cap can be fused, thus an expansion gap can be formed between an anchoring nail and a valve plate body, a certain expansion space can be given to a valve plate, the phenomenon that the valve plate cracks due to heating expansion is prevented, and the service life of the valve plate is prolonged. After one-time low-temperature baking is carried out, second-time high-temperature firing is added, the firing temperature reaches the working condition state of actual use, thus after firing is carried out, the formed valve plate is placed in medium and high temperature, a product is tested by the simulated workingcondition, and thus the product quality is ensured.

Description

Technical field: [0001] The invention relates to the technical field of valve plates, in particular to a high-temperature and wear-resistant nano-ceramic valve plate and its technology. Background technique: [0002] The valve plate is mainly used to adjust the balance of the air volume in the kiln and the air volume in the furnace. In the actual process, the valve plate has to be washed and worn by the high temperature of about 1000 ℃ for a long time, containing chlorine, alkali harmful components, and dust gas. Therefore, in the actual use process Among them, the valve plate castable is prone to peeling off, which makes it lose the balance between the air volume in the kiln and the air volume in the furnace, and has a greater negative impact on the stability of the entire system. At the same time, the existing valve plate is in In an environment where the temperature is constantly changing, the strength and thermal shock resistance are relatively poor. After long-term use,...

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Problems solved by technology

[0002] The valve plate is mainly used to adjust the balance of the air volume in the kiln and the air volume in the furnace. In the actual process, the valve plate has to be washed and worn by the high temperature of about 1000 ℃ for a long time, containing chlorine, alkali harmful components, and dust gas. Therefore, in the actual use process Among them, the valve plate castable is prone to peeling off, which makes it lose the balance between the air volume in the kiln and the air volume in the furnace, and has a greater negative impact on the stability of the entire system. At the same time, the existing valve plate is in In an environment where the temperature is constantly changing, the strength and thermal shock resistance are relatively poor. After long-term use, the valve plate will be damaged. Therefore, the current situation of the valve plate has short life and more maintenance needs to be improved.

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