Sealing glass powder for electric connectors, preparation method for sealing glass powder and sealing process of sealing glass powder

A technology for sealing glass and electrical connectors, which is applied in connection, line/collector parts, circuits, etc., can solve problems such as failure to meet performance requirements, poor product stability, and product resistance drop, and achieve improved chemical stability and Electrical insulation, lower melting temperature, and improve high-temperature insulation performance

Active Publication Date: 2016-08-17
XIAN SEAL ELECTRONICS MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are two main problems in the product developed in China: first, the pressure resistance is average, and the commonly used lifting method is mainly to implement a complicated sealing structure, which leads to complicated process, poor product stability and low yield; second, with the With the increase

Method used

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  • Sealing glass powder for electric connectors, preparation method for sealing glass powder and sealing process of sealing glass powder

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0070] A preparation method of sealing glass powder for electrical connectors specifically includes the following steps:

[0071] 1). Select raw materials according to the following weight percentages:

[0072] K 2 O: 3%-7%

[0073] MgO: 1%-5%

[0074] CaO: 3%-7%

[0075] SrO: 0.5%-2%

[0076] BaO: 20%-30%

[0077] ZnO: 0.05%-1%

[0078] Fe 2 O 3 :0.05%-1%

[0079] Al 2 O 3 : 5%-15%

[0080] SiO 2 : 40%-60%

[0081] ZrO 2 : 0.5% -1.5%

[0082] TiO 2 :0.05%-1%

[0083] V 2 O 5 : 1%-7%

[0084] Na 3 AlF 6 : 1%-3%;

[0085] 2) Put the above ingredients in a ball mill for ball milling to make the ingredients evenly mixed, the grinding speed is 300r / min, and the time is 20-40min;

[0086] 3). Then place the ball milled and mixed materials in a corundum crucible or platinum crucible, and place the crucible in a silicon-molybdenum furnace. In the air, the temperature rises from room temperature to 700-900°C at a heating rate of 10°C / min. After being kept at 700-900℃ for 20-40min, the temperature will be...

Example Embodiment

[0099] Example 1

[0100] A sealing glass powder for electrical connectors, calculated by weight percentage, prepared from the following raw materials: K 2 O is 3%, MgO is 2%, CaO is 4%, SrO is 0.5%, BaO is 26%, ZnO is 0.9%, Fe 2 O 3 0.05%, Al 2 O 3 15%, SiO 2 45%, ZrO 2 0.5%, TiO 2 Is 0.05%, V 2 O 5 2%, Na 3 AlF 6 Is 1%.

[0101] A preparation method of sealing glass powder for electrical connectors specifically includes the following steps:

[0102] 1). Select raw materials according to the following weight percentages:

[0103] K 2 O is 3%, MgO is 2%, CaO is 4%, SrO is 0.5%, BaO is 26%, ZnO is 0.9%, Fe 2 O 3 0.05%, Al 2 O 3 15%, SiO 2 45%, ZrO 2 0.5%, TiO 2 Is 0.05%, V 2 O 5 2%, Na 3 AlF 6 Is 1%.

[0104] 2) Put the above-prepared raw materials in a ball mill for ball milling to make the ingredients evenly mixed, the grinding speed is 300r / min, and the time is 20min;

[0105] 3) Put the ball-milled and mixed materials in step (2) in a corundum crucible or platinum crucible, place the ...

Example Embodiment

[0123] Example 2

[0124] A sealing glass powder for electrical connectors, calculated by weight percentage, prepared from the following raw materials: K 2 O is 4.5%, MgO is 3.5%, CaO is 5.5%, SrO is 0.75%, BaO is 21.5%, ZnO is 0.75%, Fe 2 O 3 0.5%, Al 2 O 3 10%, SiO 2 Is 44.5%, ZrO 2 1%, TiO 2 0.5%, V 2 O 5 4%, Na 3 AlF 6 Is 3%.

[0125] A preparation method of sealing glass for electrical connectors specifically includes the following steps:

[0126] 1). Select raw materials according to the following weight percentages: K 2 O is 4.5%, MgO is 3.5%, CaO is 5.5%, SrO is 0.75%, BaO is 21.5%, ZnO is 0.75%, Fe 2 O 3 0.5%, Al 2 O 3 10%, SiO 2 Is 44.5%, ZrO 2 1%, TiO 2 0.5%, V 2 O 5 4%, Na 3 AlF 6 Is 3%,

[0127] 2) Put the above-prepared raw materials in a ball mill for ball milling to make the ingredients evenly mixed, the grinding speed is 300r / min, and the time is 15min;

[0128] 3) Put the ball-milled and mixed materials in step (2) in a corundum crucible or platinum crucible, place the...

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Abstract

The invention discloses sealing glass powder for electric connectors. According to the sealing glass powder, silicon dioxide serves as a skeleton structure and serves as a network forming body of glass, and an extremely small amount of alkali metal element is used, so that the melting temperature is lowered, the coefficient of expansion is increased, and the influence on high-temperature insulating properties of the glass is relatively low; alkaline-earth metal oxides such as MgO, CaO, SrO and BaO are added, and network gaps are filled with cations, i.e., Mg<2+>, Ca<2+>, Sr<2+> and Ba<2+> of MgO, CaO, SrO and BaO and a mixed base effect and a depressing effect are generated, so that the movement of alkali metal ions is hindered, and thus the insulating properties of the glass is improved; due to relatively high content of BaO, the material properties of the glass can be improved, and the high-temperature insulating properties of the glass is greatly improved; due to the addition of Al2O3, an AlPO4 unit can be formed in the glass, and a straight chain is changed into a network structure, so that the structure of the glass is stabilized, and the chemical stability is improved; in addition, by adding oxides such as ZnO, TiO2, ZrO2 and V2O5, the improvement on the chemical stability and electrical insulating performance of the glass is facilitated.

Description

technical field [0001] The invention belongs to the field of sealing glass and its preparation, and in particular relates to a sealing glass powder for an electric connector, a preparation method and a sealing process thereof. Background technique [0002] Electrical connectors are tools used in oil well operations to provide electrical connections and signal transmission between systems. In order to obtain the information in the oil well, a system is required, in which the connector can provide data access, such as the access between the data acquisition module and the data communication module. This type of connector is mainly composed of three parts of metal shell, metal stem and insulating sealing material sealed at high temperature. The product is required to withstand liquid pressure from 140MPa to 172MPa, and the resistance is greater than 1500MΩ at 25°C at DC500V, 175°C (some even 204°C) ) at DC500, the resistance is greater than 50MΩ. At present, there are two mai...

Claims

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Application Information

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IPC IPC(8): C03C12/00C03C27/00C03C8/24H01R43/00H01R43/20
Inventor 华斯嘉冯庆梁力赵红刚任越锋贾波黄晋
Owner XIAN SEAL ELECTRONICS MATERIAL TECH CO LTD
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