Lead-free glass powder for automobile tempered glass shielding silver paste glass ink
A technology of lead-free glass powder and glass ink, which is applied in the field of lead-free glass powder, can solve the problems of sinterability, poor shielding performance, and failure to reach, and achieve the effect of enhancing compactness and viscosity, and preventing migration
Inactive Publication Date: 2021-02-26
UNIV OF ELECTRONICS SCI & TECH OF CHINA ZHONGSHAN INST
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Problems solved by technology
At present, the acid resistance of domestic self-produced automotive tempered glass inks can only meet the requirements of relevant domestic standards, but not the requirements of advanced foreign standards. At the same time, they are also poor in sinterability and shielding properties.
Method used
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[0017] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. The described embodiments are some, but not all, embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0018] The lead-free glass powder formula that the embodiment of the present invention adopts is as shown in the following table:
[0019]
[0020] The preparation process adopted by the embodiments of the present invention 1, 2, 3, 4, 5 and 6 is as follows: accurately weigh each material according to the mass percentage of the material set in the above table 1, accurately weigh the raw materials according to ...
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Abstract
The invention discloses a lead-free glass powder for automobile toughened glass to shield silver paste glass ink, which is characterized in that the lead-free glass powder contains the following components and mass percentage: 20-35% SiO 2 、45‑65%Bi 2 o 3 , 0.5‑2.5%K 2 O, 0-1.0%Li 2 O, 0.3-1.4%Al 2 o 3 , 5-12%B 2 o 3 , 0.4‑1.2%CaF 2 , 0-1.0%MgO, 0.4-1.5%CaO, 3-8%BaO, 1.0-5.0%SrO, the sum of the mass percentages of the above components is 100%. where the Bi 2 o 3 and SiO 2 The sum accounts for 80-90% of the mass percentage of glass powder, the sum of the MgO, CaO, BaO and SrO accounts for 5.0-15.0% of the glass powder mass percentage, and the rest is K 2 O. Li 2 O, Al 2 o 3 , B 2 o 3 and CaF 2 . The lead-free glass powder is used to prepare automotive tempered glass shielding silver paste glass ink and sintered at 560-680°C for 6-8 minutes to completely shield the silver paste from the glass surface. According to the ASTM C724-91 standard, the acid resistance grade is 3-4.
Description
technical field [0001] The invention belongs to the field of lead-free glass powder, and in particular relates to a lead-free glass powder for automobile toughened glass to shield silver paste glass ink. Background technique [0002] Automotive toughened glass ink is used on the edges of the toughened glass of the car to effectively reduce the UV transmittance, prevent the chemical change of the glue used to bond the glass and the car body, and at the same time cover the conductive silver paste, giving the appearance of the car a sense of beauty Action ink. The emergence and development of automotive tempered glass inks are developed with the development of the automotive industry and people's requirements for the safety, comfort and beauty of cars. Automotive tempered glass ink is mainly composed of glass powder, black glass pigment, varnish, additives, etc. and formulated according to a certain proportion. The mass ratio of glass powder can generally reach about 60%-80%. ...
Claims
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IPC IPC(8): C03C12/00
Inventor 王悦辉
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA ZHONGSHAN INST