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Highly reliable cuprous oxide semiconductor sparking plug sealing method

A cuprous oxide and semiconductor technology, applied in high-energy electric ignition and low-voltage fields, can solve problems such as air leakage, poor transition layer quality, and low pass rate of product sealing, achieve high seal pass rate, solve poor quality, and improve sealing The effect of sexual eligibility

Inactive Publication Date: 2012-04-11
成都泛华航空仪表电器有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

The quality of the transition layer at the bonding interface between the oxide film and the molten sealing glass is poor, and under a relatively high external pressure (such as 2MPa, lasting 1min), there will be air leakage, resulting in a low pass rate of product sealing, about 70% %about

Method used

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  • Highly reliable cuprous oxide semiconductor sparking plug sealing method
  • Highly reliable cuprous oxide semiconductor sparking plug sealing method
  • Highly reliable cuprous oxide semiconductor sparking plug sealing method

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Embodiment Construction

[0020] Figure 1 ~ Figure 4 Described is a cuprous oxide semiconductor electric nozzle composed of a semiconductor component 1, a central electrode 2, a sealing glass blank 3, an electric nozzle outer shell 4, a porcelain tube 5, etc., sequentially assembled. Wherein, the semiconductor component 1 is sandwiched between the center electrode 2 and the lock nut 7 . The semiconductor component 1 is an independent component that is pre-coated with semiconductor glaze and "sintered" at high temperature, and then put into the electric mouth shell 4 with sealing glass, etc., and the electric mouth glass is sealed. This process is called "sealing". The end of the central electrode 2 and the locking nut 7 are fixedly connected. The sealing glass blank 3 can be a pre-vitrified borosilicate glass material with a relatively high softening temperature.

[0021] The method for highly reliable sealing of the cuprous oxide semiconductor electric nozzle proposed by the present invention is to...

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Abstract

The purpose of a highly reliable cuprous oxide semiconductor sparking plug sealing method provided by the invention is to provide a sealing method which does not need to carry out oxidation treatment on metal parts in advance and has a high sealing percent of pass. The method is implemented by the following technical scheme: an enamel layer is coated on the lower end surface of a semiconductor part and then sintered, a pre-vitrified glass blank and a porcelain tube are coaxially mounted into a sparking plug shell, and the assembly is then put into a clamp, sent into a furnace along with the clamp and heated to be sealed under high temperature; the sealing process is carried out by two times of heating and pressurization, and in each time of heating process, the porcelain tube connected with the upper end in the sparking plug shell is utilized to apply axial pressure on the end surface of the melted glass blank, so that the melted glass blank can be sufficiently filled in the space of a sealed area. The method solves the problem that the quality of the transitional layer of the bonding interface between an oxidation film and the fused sealing glass is poor.

Description

technical field [0001] The invention belongs to the technical field of low-voltage, high-energy electric ignition, and more specifically, the invention relates to a method for sealing a cuprous oxide semiconductor ignition nozzle. Background technique [0002] The cuprous oxide semiconductor nozzle is a kind of igniter used in the engine. With the help of the voltage generated by the ignition device in the ignition system, it acts on the center electrode and side electrode of the cuprous oxide semiconductor nozzle (the outer shell of the nozzle) through the cable transmission. In between, the cuprous oxide semiconductor at the tip of the electric nozzle will generate an "avalanche" discharge, igniting the oil-gas mixture in the combustion chamber. It has the advantages of low ignition voltage, large spark energy, thermal shock resistance, spark corrosion resistance, insensitivity to environmental conditions (such as air pressure), and long service life. [0003] Since the n...

Claims

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Application Information

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IPC IPC(8): F02P3/12C03C8/02C04B37/04
Inventor 刘建
Owner 成都泛华航空仪表电器有限公司
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