Lianyungang wholesale price from the quartz tube made of high quality pearl white quartz silica glass (commonly known as opaque quartz glass), due to innate tiny air bubbles in its structure, and therefore have a milky appearance, acid, high temperature, and other features. 
 Lianyungang milk wholesale price of high-purity quartz tube 

 Lianyungang quartz tube wholesale price of high-quality silica powder, 99.95% purity, was used to manufacture silicon glass. 

 Low gas content 

 Silica glass often have been used in high-temperature sintering, high temperature stability is especially important, because it contains a small amount of OH (hydroxyl), and may release a little gas, such as hydrogen. It is divided into a number of special grade, in order to provide a variety of purposes. 

 The lowest thermal expansion 

 The average expansion coefficient of silica glass is far less than other types of glass and crystal, ceramic and hard glass only about 17%, and general glass of 5% to 8%, it has a very high heat resistance, rapid cooling after heating also to maintain stability. 

 Specific heat and thermal conductivity 

 Specific heat of silica glass is 890 ~ ??1140J/kg.k (20 ℃ ~ 1000 ℃), usually glass is 920 ~ 1200J/kg.k. Thermal Conductivity at 0 ℃ 1.3w/mk100 ℃ when 115w/mk, lower than the crystal 10% when compared with silica glass and quartz glass is almost the same heat and slightly lower than the thermal conductivity. 

 Excellent electrical insulation 

 Silica glass and quartz glass have almost similar features, but it is born with a tiny bubble structure of the reason that there is less ability to induce electrical damage. 

 Excellent mechanical properties 

 The mechanical properties of silica glass and metal materials are very different, it's elastic modulus, bending strength and fracture strength increases with temperature and at 900 ℃ ~ 1000 ℃ high temperature vertical rise, high-quality silicon-silicon glass products cause form so it's particularly good thermal sticky, long-term use of short-term use temperature of 1100 ℃ or 1300 ℃, higher temperatures may be skewed. 

 High chemical stability 

 Silica glass material with excellent acid resistance, the fact concentrated acid at high temperatures can be immediately proved, in fact, due to its high chemical stability, these products are ceramic enamel acid resistance of 30 times and nickel alloy or ceramic 150 times. However, as used in hydrofluoric acid (HF) or above 300 ℃ of hot concentrated phosphoric acid (H3P04) in the corrosion will occur.