A kind of inorganic sealing material and its application method on ignition electric nozzle
A technology of inorganic sealing and application method, which is applied in the direction of mechanical equipment, machine/engine, gas turbine device, etc. It can solve problems such as looseness, short heat preservation time, and leakage of ignition nozzle, and achieve the effect of improving service life
Active Publication Date: 2022-06-07
SHAANXI AVIATION ELECTRICAL
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Problems solved by technology
The holding time is short, causing the sealing material to fail to fully fill the gaps around the semiconductor block and the pores around the special nut after melting, and the short holding time also makes the sealing material vitrified insufficiently
These reasons cause the sealing material and its two ends to appear "loose" defects first during work. With the extension of working time, the overall rubber sealing structure of the ignition tip becomes loose, and finally causes the ignition tip to leak.
Method used
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[0025] In order to make the objectives, technical solutions and advantages of the implementation of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the embodiments of the present application. Throughout the drawings, the same or similar reference numbers refer to the same or similar elements or elements having the same or similar functions. The described embodiments are some, but not all, embodiments of the present application. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to be used to explain the present application, but should not be construed as a limitation to the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present...
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Abstract
The application belongs to the technical field of thermal electric nozzle sealing, and relates to an inorganic sealing material and an application method thereof on an ignition electric nozzle. The method includes assembling a semiconductor block (1) and a central electrode (6), and fixing them on the housing (5) with nuts; filling the first colloidal particles formed by the inorganic sealing material into the cavity; placing the central insulator (4) Filling into the cavity, heating and pressing; filling the second portion of colloidal particles formed by the inorganic sealing material into the cavity; filling the rear end insulator (8) into the cavity, heating and press tight. Through the method, the quality stability of the ignition tip at high temperature is improved, and the service life of the ignition tip is improved.
Description
technical field [0001] The present application belongs to the technical field of ignition nozzle sealing, and in particular relates to an inorganic sealing material and an application method thereof on an ignition nozzle. Background technique [0002] Ignition nozzle is an important accessory of aircraft engine. There are more than ten kinds of ignition nozzle sealed by sealing material. This type of ignition nozzle is characterized by large volume and relatively many parts, but the process method is simple and suitable for mass production; The disadvantage is that the heat sealing parameters fluctuate greatly when the induction coil is heated, and the product consistency will be different. [0003] The existing ignition nozzles are generally sealed with DM308 glue, and the sealing method is generally to press and adhere after heating. The sealed integrated structure is damaged, and the ignition nozzle works for a long time in the high temperature and vibration environment ...
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IPC IPC(8): C03C8/24F02C7/266
CPCC03C8/24F02C7/266
Inventor 万思明乌凯党腾华
Owner SHAANXI AVIATION ELECTRICAL