Preparation and Application of Gold Paste for Low, Medium, and High Temperature Welding Electrodes

Introduction:Low, medium, and high temperature welding electrode gold pasteAs an important metal material, it has the characteristics of good density and smoothness of fired film, and can be widely used in fields such as glass matrix, Al2O3 ceramic matrix, and ZrO matrix. This article will introduce the technical parameters and reference process conditions of a low, medium, and high temperature welding electrode gold paste, and explore its preparation process and application value.

Technical parameters of low, medium and high temperature welding electrode gold paste

1. Gold content (%): 80 ± 2

2. Viscosity: Pa.s (14 #/10r): 80 ± 20

3. Body resistance (m Ω): ≤ 4.0×10-5

Reference process conditions

1. Substrate selection:Low, medium, and high temperaturesWelding electrode gold pasteSuitable for materials such as glass matrix, Al2O3 ceramic matrix, and ZrO matrix.

2. Film formation method:Using screen printing method, use screen with specifications of 250-300 mesh.

3 Drying conditions:Place the printed gold paste at a temperature of 150-200 ℃ and dry it for 5 minutes.

4. Burning conditions:Place the dried sample in a furnace and sinter it at a peak temperature of 850-900 ℃ for 10 minutes. The entire sintering cycle is 45-60 minutes.

Preparation process of low, medium and high temperature welding electrode gold paste

1. Material preparation:Mix gold powder with other auxiliary materials in a certain proportion and stir evenly.

2. Liquid phase preparation:Stir the mixed gold powder with other solvents to form a uniform mixturewine of the best quality.

3. Film formation process:Apply the prepared gold paste onto different substrates, namely glass substrate, Al2O3 ceramic substrate, and ZrO substrate, through screen printing.

4. Drying treatment:Dry the preliminary film formed sample at a temperature of 150-200 ℃ to form a dense thin film on the surface of the gold paste.

5. Sintering treatment:Place the dried sample in a furnace and perform sintering treatment according to the reference process conditions to improve the adhesion and density of the gold paste.

The application value of low, medium and high temperature welding electrode gold paste

Low, medium, and high temperature welding electrode gold paste has excellent performance and wide application prospects.

1. The fired film has good density and smoothness

By controlling the firing temperature and time, the low, medium, and high temperature welding electrode gold paste can form a dense and smooth thin film during the sintering process, which is of great significance for ensuring welding quality.

2. Good compatibility between glass matrix, Al2O3 ceramic matrix, and ZrO matrix

The low, medium, and high temperature welding electrode gold paste can be well matched with various substrates, such as glass matrix, Al2O3 ceramic matrix, and ZrO matrix, and is suitable for application needs in different fields.

3. Widely applicable fields

Low, medium, and high temperature welding electrode gold paste can be applied in fields such as electronics and electrical appliances. For example, in the manufacturing process of electronic components, using low, medium, and high temperature welding electrode gold paste can improve the accuracy and strength of welding, thereby enhancing the performance of electronic products.

Summary: Low, medium, and high temperature weldingElectrode gold pasteAs an important metal material, it has the characteristics of good density and smoothness of fired film, and is suitable for materials such as glass matrix, Al2O3 ceramic matrix, and ZrO matrix. Through processes such as screen printing, drying, and sintering, low, medium, and high temperature welding electrode gold paste with excellent performance can be prepared. This kind of gold paste has a wide range of application value in the fields of electronics, electrical appliances, etc., and has made important contributions to the development of related industries.