The fluorinated mica crystals have very good
high temperature resistance, corrosion resistance and light transmission
properties, and can work for a long time at a high temperature of 1100°C.
No reaction occurs
with strong acids and alkalis; complete light transmittance (pure and
transparent). The natural mica plates traditionally used in the observation
window of high-pressure boiler water level gauge are all brown, and the light
transmittance is not good, and the temperature resistance is in the range of
200-700°C, especially the corrosion resistance is poor. The boiler steam drum
water in thermal power plants contains alkali. After reacting with natural mica
and alkali, it is washed with hot air and hot water, and it is prone to
fluffing, scaling, and being broken. In the short term (about 1-2 months), the
water level is not clearly understood. After being broken, it can easily cause
leakage. The fluorite mica does not react with the acid-base solution, and does
not react with water in the hydration reaction, so that it does not form a
layer, does not scale, and does not break. In the long-term (2 to 3 years)
scouring of high-temperature and high-pressure water (including acid and
alkali), the original clarity and transparency can still be maintained. In
China, it has been widely applied to the observation window of steam boiler
water level gauge in high-pressure boilers of thermal power plants. It has also
been selected by Japanese BBK company and NDK (Colin) company for the
observation window of high pressure boiler drum level gauge.
Mica High Pressure Gasket,High Pressure Gasket,High Pressure Resistant Material,Full Size High Pressure Gasket Changchun City Taiyuan FluorphlogopiteCo. Ltd. , https://www.micaslice.com
Recently, in the first phase, Da Nanjiao Auto Parts City, which invested more than RMB 60 million and covers an area of ​​nearly 40,000 square meters, officially opened. This means that Beijing's auto parts market has formally formed four suburban auto parts markets in the East, West, South and North. These four suburban auto parts markets account for the major market share of Beijing Auto Parts.
It is reported that this is located in Fangshan District Liangxiang southern suburbs auto parts market is restructured from the original building materials market in Hong Hong restructuring, the investor is to start doing auto parts Zhejiang Wenzhou private enterprises, there are already nearly 80% of merchants staying. According to the plan, after three years, the turnover of this market will reach 2 billion yuan, mainly radiating the wholesale and retail market of auto parts in parts of southern Beijing and parts of Hebei.
It is reported that in the east, west and north suburbs of Beijing each had an auto parts market and dominated the auto parts market in Beijing. After the opening of the auto market in Da Nanjiao, it would make up for the lack of auto parts market in the south.