阅读说明：本技术 一种用于汽车火花塞封接的玻璃粉及其制备方法 (Glass powder for sealing automobile spark plug and preparation method thereof ) 是由 尹嘉琦 于 2019-10-22 设计创作，主要内容包括：本发明属于玻璃材料技术领域,具体地说,是一种用于汽车火花塞封接的玻璃粉及其制备方法,包括以下配料：55%-65%SiO2、17%-27%B2O3、2%-7%Na2O、2%-8%K2O、1%-5%Al2O3、1%-3%Li2O、1%-2%ZnO、1%-2%CaO,制备方法包括配料、干混合、熔化、淬碎、干燥、磨粉和分级,本发明披露的用于汽车火花塞封接的玻璃粉及其制备方法,该玻璃粉能够有效的抵抗光照、冷热、风雨、细菌等对导体器件的表面造成的综合破坏,可适用于高端汽车点火端子上,尤其适用于95氧化铝磁件与金属螺杆之间气密和强度封接。(The invention belongs to the technical field of glass materials, and particularly relates to glass powder for sealing an automobile spark plug and a preparation method thereof, wherein the glass powder comprises the following ingredients: the glass powder for sealing the automobile spark plug and the preparation method thereof can effectively resist comprehensive damage to the surface of a conductor device caused by illumination, cold and hot, wind and rain, bacteria and the like, can be suitable for high-end automobile ignition terminals, and is particularly suitable for airtight and strong sealing between a 95 aluminum oxide magnetic piece and a metal screw.)

1. The glass powder for sealing the automobile spark plug is characterized by comprising the following ingredients: SiO2₂、B₂O₃、Na₂O、K₂O、Al₂O₃、Li₂O、ZnO、CaO。

2. The glass frit for sealing an automotive spark plug according to claim 1, wherein the respective ingredients are in weight percent: 55% -65% SiO₂、17%-27%B₂O₃、2%-7%Na₂O、2%-8%K₂O、1%-5%Al₂O₃、1%-3%Li₂O、1%-2%ZnO、1%-2%CaO。

3. The glass powder for sealing an automotive spark plug according to claim 2, wherein the weight percentages of the ingredients are as follows: 60% SiO₂、23%B₂O₃、5%Na₂O、5%K₂O、3%Al₂O₃、2%Li₂O、1%ZnO、1%CaO。

4. A method for producing a glass frit for automobile spark plug sealing according to any one of claims 1 to 3, comprising the steps of: the method comprises the following steps: mixing materials, taking SiO with certain mass₂、B₂O₃、Na₂O、K₂O、Al₂O₃、Li₂O, ZnO and CaO for later use; step two: dry mixing, namely placing the prepared materials in the step one in a stirrer to stir at a high speed to form uniformly mixed powder; step three: melting, namely putting the uniformly mixed powder obtained in the step two into a high-temperature melting furnace for heating and melting; step four: quenching, namely pouring the mixture completely melted in the step three into cooled purified water for quenching; step five: drying, namely putting the quenched substance formed in the step four into a baking oven to remove water and dry; step six: grinding, namely grinding the dried substance obtained in the fifth step into powder by using an agate ball, a corundum porcelain bottle or a planetary ball mill; step seven: and (5) grading, namely placing the powdery mixture obtained in the step six into a grading and screening device for grading, and screening 200-mesh powder to obtain a finished product.

5. The method as claimed in claim 4, wherein the steps one to seven are performed under normal pressure, the operating temperature of the high temperature furnace in the step three is 1350-1400 ℃, and the operating temperature of the baking oven in the step five is 40-50 ℃.

6. The method for preparing glass powder for sealing automobile spark plugs as claimed in claim 5, wherein in the first step, SiO is used as the raw material₂、B₂O₃、Na₂O、K₂O、Al₂O₃、Li₂The mass percent of O, ZnO and CaO is 60 percent of SiO₂、23%B₂O₃、5%Na₂O、5%K₂O、3%Al₂O₃、2%Li₂O、1%ZnO、1%CaO。

Technical Field

The invention belongs to the technical field of glass materials, and particularly relates to glass powder for sealing an automobile spark plug and a preparation method thereof.

Background

The glass powder is inorganic cubic hard superfine particle powder, and the appearance of the glass powder is white powder. In the production process, raw materials such as high-temperature high-purity silicon oxide, aluminum oxide and the like are used, and then an ultra-clean production process is carried out to form a glass transparent powder with a disordered structure, and the super-weather-resistant powder material has stable chemical property, acid and alkali resistance, chemical inertia and low expansion coefficient; the anti-scratching high-transparency powder has small particle size, good dispersibility, high transparency and good anti-settling effect; the crystal transparent primer has good affinity and strong steric hindrance ability after surface improvement, can be conveniently dispersed in the coating, can increase the fullness of the coating after film forming, and can keep clear transparency and provide good scratch resistance.

The surface of the conductor device is sensitive and is easily influenced by the surrounding environment, and the electrical property and the stability of the conductor device are changed, so that the use performance of the conductor device is influenced. With the development of conductor technology, the surface treatment of electronic and conductor devices is also receiving more and more attention. The surface of a conductor device needs to be protected, a layer of passivation film is deposited on the surface of the conductor device in a vapor phase mode for protection in the traditional process, and for conductor products with mesa structures, high voltage and high power, the vapor-deposited film is used for protection, so that the conductor products are easy to break down by the high voltage, the stability is poor, and the protection effect is poor. At present, glass powder is used for surface passivation sealing of conductor devices, and the glass powder has higher reverse breakdown voltage, mechanical strength and thermal shock resistance, but the existing glass powder for passivation sealing of conductors cannot effectively improve the weather resistance of passivation sealing materials and can not effectively resist comprehensive damage to the surfaces of the conductor devices caused by illumination, cold and heat, wind and rain, bacteria and the like.

Disclosure of Invention

In order to solve the technical problems, the invention discloses glass powder for sealing an automobile spark plug and a preparation method thereof, wherein the glass powder can effectively resist comprehensive damage of light, cold, heat, wind, rain, bacteria and the like to the surface of a conductor device.

The invention adopts the following specific technical scheme: a glass powder for sealing an automobile spark plug comprises the following ingredients: SiO2₂、B₂O₃、Na₂O、K₂O、Al₂O₃、Li₂O, ZnO and CaO, wherein the weight percentages of the ingredients are as follows: 55% -65% SiO₂、17%-27%B₂O₃、2%-7%Na₂O、2%-8%K₂O、1%-5%Al₂O₃、1%-3%Li₂O、1%-2%ZnO、1%-2%CaO。

The invention is further improved, and the weight percentages of all the ingredients are as follows: 60% SiO₂、23%B2O₃、5%Na₂O、5%K₂O、3%Al₂O₃、2%Li₂O、1%ZnO、1%CaO。

The invention also discloses a preparation method of the glass powder for sealing the automobile spark plug, which comprises the following stepsThe following steps: the method comprises the following steps: mixing materials, taking SiO with certain mass₂、B₂O₃、Na₂O、K₂O、Al₂O₃、Li₂O, ZnO and CaO for later use; step two: dry mixing, namely placing the prepared materials in the step one in a stirrer to stir at a high speed to form uniformly mixed powder; step three: melting, namely putting the uniformly mixed powder obtained in the step two into a high-temperature melting furnace for heating and melting; step four: quenching, namely pouring the mixture completely melted in the step three into cooled purified water for quenching; step five: drying, namely putting the quenched substance formed in the step four into a baking oven to remove water and dry; step six: grinding, namely grinding the dried substance obtained in the fifth step into powder by using an agate ball, a corundum porcelain bottle or a planetary ball mill; step seven: and (5) grading, namely placing the powdery mixture obtained in the step six into a grading and screening device for grading, and screening 200-mesh powder to obtain a finished product.

In the steps, the first step to the seventh step are all completed under normal pressure, the working temperature of the high-temperature smelting furnace in the third step is between 1350 and 1400 ℃, and the working temperature in the baking box in the fifth step is between 40 and 50 ℃; in the compounding of the step one, SiO₂、B₂O₃、Na₂O、K₂O、Al₂O₃、Li₂The mass percent of O, ZnO and CaO is 60 percent of SiO₂、23%B₂O₃、5%Na₂O、5%K₂O、3%Al₂O₃、2%Li₂O、1%ZnO、1%CaO。

The glass powder prepared by the ingredients and the process has the functions of sealing and bonding, has good air tightness and strength, can resist thermal shock, can bond a conductor and glass together, bond a metal conductor and a porcelain body together, and bond metal and an electrode together.

The invention has the beneficial effects that: the glass powder can effectively resist the comprehensive damage of illumination, cold and heat, wind and rain, bacteria and the like to the surface of a conductor device, can be suitable for a high-end automobile ignition terminal, and is particularly suitable for airtight and strength sealing between a 95 aluminum oxide magnetic part and a metal screw.

Detailed Description

In order to enhance the understanding of the present invention, the present invention will be described in further detail with reference to the following examples, which are provided for the purpose of illustration only and are not intended to limit the scope of the present invention.