Specifications
1.Gauge Glass Mica/Mica for Liquid Level Indicators
2 .Electrical insulation, Spacer
3. Heating elements
4. Separators
Mica Shield & Gauge Glass Mica/Mica for Liquid Level Indicators
Chemical Name/Synonyms Mica shield
Product Use : Main uses: As shield for protection of gauge glasses, Electrical insulation, Spacer, Heating elements, Separators, Electronics-Instrumentation-Communication, Substrates for thin film coatings in research and microscopy and other uses/applications.
Chemical family..........Potassium alumina silicates
CAS #....................12001-26-2
Chemical Formula.........K2O·Al2O3·SiO2
TYPES OF Mica shield
There are two types of mica:
Muscovite and phlogopite. Generally, one differs from the other by color (Muscovite is Ruby, Green; Ruby mica is transparent and clean but Green Mica is not so transparent as Ruby mica. The maximum operating temperature for Muscovite is about 500-600°C Phlogopite is Amber, Yellow, or Silver). and for Phlogopite is about 800-900°C. It is not transparent, like Ruby and Green mica. It is mostly used for electrical insulation and dielectric application..
Sizes and thickness: as demanded by buyer/user. Tolerance: In thickness: +/- 0.03(for 0.20mm) and tolerance in size of Cut mica plates/shields: very close.
Physical and Chemical Properties
Characteristics:
Muscovite, potash type mica, sometimes known as granitic mica, is the best of all micas in dielectric strength, perfection of cleavage, and transparency.
It has the following chemical formula: H2KAI3(Si04)3.
Chemical Composition:
Silica: |
45.5% |
Alumina: |
37.5% |
Potash: |
12.0% |
Water: |
5.00% |
It has a vitreous lustre and is colourless to gray, brown, pale green, violet, dark olive green, or rose red. It may be transparent to translucent. It has strong double refraction and is optically negative. It loses water of constitution at 600°C and is practically non-magnetic. It exhibits pleochrism, which is the property of varying in colour when viewed from different angles.
RUBY muscovite is harder than green and has a pale brownish red color in thin sheets (0.020") or ruby red in thick plates (0.4"). Ruby mica can be split easily into films of 0.001" or thinner because it has such excellent cleavage. In other colours, this thinness can be obtained but at a considerable risk of cracking.
Located in Qingshan District,Wuhan City,adjacent to Wuhan iron and steel group,Wuhan Changfeng mica insulating material co.,Ltd.Formerly known as Wuhan insulating material factory,now is the largest manufacturer of mica insulating material in central China.The company also assumes the position of vice president of insulating material branch of China electrical equipment industry Association.Furthermore,it is a high-tech enterprise in Hubei province,and one of the organizations that draft that national standard of insulating material.
The company owns two production factories,the most advanced equipment for mica deep processing production line,detecting instruments,manufacture technologies and R&D bases in domestic.Necessary equipment for R&D and test are also equipped,including nearly 50 detecting devices.Key technologies and equipment are introduced from Japan,German,etc.In addition,the production capacity of the company ranks top in the country,and is one of the key production bases of mica material in China.
The company is devoted to the R&D ,Manufacture and sales of high-temperature-resistant mica insulating material,and boasts the capacity to manufacture high-quality mica papers,mica tapes,mica tubes,mica gasket,mica sheets,specially-shaped mica parts and 3240 epoxy glass-cloth laminated products.The company also provide high-temperature-resistant mica insulating parts suitable for high temperature electrical furnaces such as line frequency furnaces,intermediate frequency furnaces and furnaces for silicon production.The temperature electrical furnaces such as line frequency furnaces,intermediate frequency furnaces and furnaces for silicon production.The company is designated manufacture of several domestic steel enterprises,including Wuhan iron&steel Group ,baosteel and benxi steel group.The products manufactured by the company are widely applied in high-temperature insulating industries like iron& steel ,motor,household appliances,aeronautics,petroleum,chemical engineering,metallurgy,subway,rolling stock,power line and cables.
Adhering to the development road integrating enterprise,universities and research institutes,the company has established enterprise-university R&D with Hubei chemicals research institute,Wuhan university of technology and xi 'an Jiaotong university.Therefore,the company has a R&D team composes of doctorates,masters and undergraduates which possesses vast experience and capacity of technical innovation in R&D and application of products.The company ' s capacity to develop new products ranks top in its peers.
Since its founding,the company has administered and operated itself in strict accordance with modern enterprise system.Therefore,it has realized rapid development.Now the company boasts annual production of mica paper 1,800 tons,mica plate 2,000 tons,mica tape and other mica products 800 tons.The company and its products have been accredited and certified by ISO 9001,UL,SGS,TUV,etc.In addition,the company boasts the strongest R&D team in mica products in domestic,in which a number of experts have engaged in mica business for over 40 years,over 20 senior and intermediate personnel engage in the R&D,manufacture and application of mica insulating material.These team members are the leading figures and core force in the technical research and manufacture of mica insulating material.
The company always sticks to the philosophy"quality and user come first ;Reputation is the core and abide by the contract"relying on the high-quality,good reputation and excellent service of the company,the products are sold to nearly thirty province,cities,and autonomous regions in domestic and to the countries in Asia,Europe,Oceania and Africa.The company serves the user with high-quality and fair-prices products as well as first-rate after-sales services.The company would like to cooperate with enterprises at home and abroad to develop jointly and create a brilliant future together.
