| 摘要 |
A glass-to-metal sealing device of a solar receiver has a metal collar and a glass cylinder to be sealed together. The glass cylinder is made of a borosilicate glass having a coefficient of thermal expansion within the range of [3.1, 3.5]·10−6° C.−1 in a temperature range of [50, 450]° C. The metal collar s made of an austenitic alloy having a coefficient of thermal expansion in the range of [3.5, 6.0]·10−6° C.−1 in the temperature range of [50, 450]° C. The end portion of the metal collar is beveled so as to increase its mechanical flexibility and, further, the end portion of the metal collar is processed via a thermal treatment in order to establish a bond between the metal and the glass surfaces. |
