Beryllium metal surface vitrification spherical reflector and preparation method thereof

The invention provides a beryllium metal surface vitrification spherical reflector and a preparation method thereof. The beryllium metal surface vitrification spherical reflector is of a composite structure and comprises a beryllium metal substrate layer and a surface glass layer laminated on the surface of the beryllium metal substrate layer. Wherein the surface glass layer is prepared from the following components in percentage by mass: 10 to 20 percent of S < i > O < 2 >, 15 to 20 percent of B < 2 > O < 3 >, 45 to 60 percent of PbO, 6 to 10 percent of Na < 2 > O, 4 to 8 percent of K < 2 > O, 30 to 0.5 percent of As < 2 > O < 3 >, 0.2 to 1.5 percent of Ce < 2 > O < 3 > and 0.8 to 1.2 percent of Sb < 2 > O < 3 >. The reflector has the characteristics of light weight, high strength and high optical precision, is simple in structure and high in installation and adjustment reliability, reduces the machining and optical processing difficulty of a large-size reflector to a great extent, and is suitable for a larg