Low-temperature sealing glass powder material for spark plug

• Main Authors: YIN JIAQI, YIN MENGDI, WU ZHONGYANG, LUO YALI
• Format: Patent
• Language: Chinese; English
• Published: 09.04.2024
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; METALLURGY; MINERAL OR SLAG WOOL; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS

The invention discloses a low-temperature sealing glass powder material for a spark plug, which is prepared by the following steps: firstly, selecting and mixing high-purity raw materials according to sealing requirements; then, the glass is melted and stirred in a melting furnace to ensure uniformity, and then the molten glass is formed and rapidly cooled to form an amorphous structure. The cooled glass blocks are subjected to primary crushing and ball milling to obtain powder, and the granularity is controlled through screening. The powder needs to be packaged and stored after being cleaned and dried, and the glass powder with excellent sealing performance can be obtained by accurately controlling the raw material ratio and melting conditions. And the uniformity and proper granularity of the powder are ensured through rapid cooling and subsequent crushing and screening, so that the sealing quality is improved, and the sealing property and the insulating property of the spark plug in the using process are en