непрозрачный кварцевой трубки

With the adoptiom of distinctive technique,this opaque quartz glass tube has its typical characteristics of good visual aspects and stable physical & chemical properties.It serves as material of infrared heating lamps for heaters,micriwave oven ,electrical baking oven, sterilization container and other consumer and industrial infrared application.Further processing of trim cutting can be done according to the demand of the customers. For detailed dimensional tolerance and technical data,please see table1,table2 Dimensional Tolerance (table1)Range of ODODWTSidingEllipticityCamber/1220mm8.00-15.00mm±2.0%±10%15%1.5%2.5mm15.00-20.00mm±1.5%±10%15%1.5%2.5mm20.00-25.00mm±1.5%±10%15%1.5%3.0mm Chemical composition&OH (table2)OpalescenceSiO2Heat ResistanceSpectral transmission au 500nm Less than10%SiO29Greater than99.5%Keep Under 900°Cfor15miunutes, then put into 20°Cwater3times,no crack