| 简介 |
A glass fibre formable from a melt by a rotary process and having a diameter less than 5 mum and comprising in weight percent : SiO2 62 to 75 wt %, alkaline earth metal oxide 13 to 25 wt %, alkali metal oxide 8 to 15 wt %, B2O3 0 to 8 wt %, M2O3 0.5 to 3 wt % in which M is Al, a transition element, a lanthanide or a mixture thereof with these named ingredients comprising greater than or equal to 90 wt % and less than or equal to 100 wt % of the glass composition provides blankets having superior temperature resistance to conventional glass wools, and superior insulating performance (i.e. lower thermal conductivity) than an alkaline earth silicate fibre while being soluble in body. |
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