一、技术规格:
纤维细度:3~25μm
纯 度:SiO2含量99.9%以上
二、性能:
熔点:1710℃
析晶温度:700℃以上
耐温性:1200℃半小时开始酥化不变型
导热系数:(纤维毡状时)在200℃以下 < 0.03千卡/米·时·度
在1000℃时0.2千卡/米·时·度
抗拉能力:15.4N
抗拉强度:常温下 > 150Kg/mm2 500℃时强度减少20%
弹性模数:96×104Kg/mm2
介电常数:ε=4.5
体积电阻:(作电缆时)
常温下>1×1017Ω·cm
500℃时>1×1010Ω·cm
1000℃时>1×108Ω·cm
耐水性:在水中煮沸3小时无损失
耐酸性:在1NH2SO4煮沸3小时无损失
耐碱性:在0.5NNaOH煮沸3小时损失0.62%
三、用途:
①用于高温隔热:如火箭、导弹作隔热、防震材料或其它高温绝缘工程中。
②用于增强塑料:与树脂合成制作高温高强度玻璃钢材料。广泛用于航空、导弹、火箭等方面。
③特种电缆:做电缆的外包皮,用在高温特殊用途的电缆上。
④用于高温酸碱过滤器。
⑤用于电子管填充材料:水拉石英丝作为电子管的填充材料,以改善电子管的性能,延长电子管的寿命。
Continual quartz glass fiber
Teachnical specialfections:
Fiber fineness: 3 ~ 25 μ m
Purity:more than 99.9 percent content of SiO2
Performance: Melting point: 1710 ℃
Crystallization temperature: 700℃ above
Thermotolerant performance : 1200 ℃ half hour starts not to change form crisply.
Thermal coefficient: (mat-like) in the following 200 ℃ <0.03 kcal / m at the degree
In 1000 ℃ at 0.2 kcal / m at the degree
Tensile capacity: 15.4 N
Tensile strength: normal temperature > 150Kg/mm2 500 ℃ at the strength reduced by 20%
Elastic modulus: 96 × 104Kg/mm2
Dielectric constant: ε = 4.5
Volume Resistance: (for cable)
At room temperature> 1 × 1017 Ω cm
500 ℃ at > 1 × 1010 Ω cm
1000 ℃ at > 1 × 108 Ω cm
Water tolerance: in the water boiled for three hours without loss
Acid resistance: 1 NH2SO4 boiled in three hours without loss
Alkaline resistance: 0.5 NNaOH boiled three hours loss of 0.62 percent
Applying:
1、 For high-temperature insulation: such as rockets, missiles for insulation, earthquake or other high-temperature insulating materials engineering.
2、 Used for reinforced plastic: high-temperature production of synthetic resin and high-strength glass fiber reinforced plastic materials. Widely used in aviation, missiles and rockets, and so on.
3、 Special cable: use for the foreskin of the cable, used in high temperature on the special-purpose cable.
4、 Acid-base for high-temperature filters
5、 For vacuum tube filled with material: water Rafah as a quartz tube filled with silk material, in order to improve the performance of the tube,and extend the life of vacuum tube