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Oxygen sensor ceramic induction feeler forming device and molding and manufacturing method

A technology of oxygen sensor and manufacturing method, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of high processing cost, low yield rate, low production efficiency, etc., and achieve the effect of simplified and stable process flow and high mechanical strength

Inactive Publication Date: 2010-05-12
深圳市日理江澍实业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, the object of the present invention is to provide a method for forming and manufacturing an oxygen sensor ceramic induction probe to solve the problems of low production efficiency, high processing cost and low yield rate of the existing ceramic induction probe

Method used

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  • Oxygen sensor ceramic induction feeler forming device and molding and manufacturing method
  • Oxygen sensor ceramic induction feeler forming device and molding and manufacturing method
  • Oxygen sensor ceramic induction feeler forming device and molding and manufacturing method

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Embodiment Construction

[0021] In order to illustrate the idea and purpose of the present invention, the present invention will be further described below with reference to the drawings and specific embodiments.

[0022] Such as figure 1 As shown, the present invention provides a molding device used in the molding process of a ceramic induction probe, which mainly includes a female mold 13, an upper module 11, an upper second module 12, a next module 14 and a lower second module 15. The female mold 13 is provided with a mold cavity 20. The above-mentioned components are located in the same group of mold bases in the vertical direction. The upper module 11 and the upper second module 12 are located above the female mold 13, and the next module 14 and the lower second module 15 are located in the female mold. Under the mold 13, the movable sleeve of the upper module 11 is placed in the upper second module 12, and a groove 38 is formed between the two; the movable sleeve of the lower second module 15 is pla...

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Abstract

The invention discloses a shaping device of an oxygen sensor ceramic sensing checking head and a shaping fabrication method thereof. The method mainly comprises the following steps: step A, as a powerfilling step, yttrium stabilized zirconia powder is filled in the mould cavity of a mother mould; step B, as a shaping step, an upper first mould block and an upper second mould block are combined with the mother mould, a lower first mould block and a lower second mould block, and a ceramic sensing checking head is formed in the mould cavity of the mother mould; step C, as a component take-out step, the upper first mould and the upper second mould block are disconnected with the mother mould, the lower first mould block and the lower second mould block, and a mechanical clamp is used for taking out the ceramic sensing checking head; step D, as a high-temperature sintering step, the finished ceramic sensing checking head is fabricated as following: the ceramic sensing checking head is sintered for four hours at a constant temperature higher than 1450 DEG C, and the finished ceramic sensing checking head is obtained after cooling. Compared with the prior art, the invention has more simplified and stable technical process, the unqualified products caused by manual, machine and the like factors are reduced, and the shaped raw billet ceramic sensing checking head has the advantages ofhigh density structure, high mechanical strength, no waste gas penetration, etc.

Description

Technical field: [0001] The invention relates to an oxygen sensor ceramic induction probe forming device and a method for manufacturing the oxygen sensor ceramic induction probe through the device. Background technique: [0002] The oxygen sensor is a sensor for feedback control on electronic gasoline injection engines. It is mainly installed on the exhaust manifold of the engine. Its function is to detect the oxygen content in the exhaust gas through a ceramic sensor probe to obtain the signal of the air-fuel ratio of the mixture. And input the voltage signal of the detection result into the ECU (Electronic Control Unit), and the ECU (Electronic Control Unit) constantly corrects the injection pulse width according to the input voltage signal to keep the mixture concentration within the ideal air-fuel ratio range to achieve Feedback control for optimal air-fuel ratio. [0003] Ceramic sensing probes are an important part of the oxygen sensor, and their quality directly affects the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/409
Inventor 连儒宏江澍
Owner 深圳市日理江澍实业有限公司
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