Conventional soda-limeglass expands too much, so welding introduces stresses that can lead to failure.
传统的碱石灰玻璃膨胀过大,焊接会带来很大的应力从而导致失效。
2
Absorption of nitrogen from the air and carbon from contaminating substance has been found on the surface of quartz glass, soda-limeglass and lead crystal glass samples.