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new style ceramic cups mugs What are the characteristics of porcelain |
| Ceramic Mug From:Xinxiang Ceramic Mug Manufacturers 2016-3-10 |
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new style ceramic mug
Ceramic, porcelain, also known as electrician or electrical porcelain, as every other electrical, mechanical support and connection with ceramic insulation devices. According to the working voltage of distinction, can be divided into low-voltage electrical porcelain (1kV or less), high-voltage ceramic (1kV to 110kV) and EHV porcelain (110kV and above). According to purpose, can be divided into categories and electrical lines, power plants category, according to porcelain to points, there are feldspathic porcelain, porcelain high silicon, aluminum, porcelain. From the perspective of porcelain, to better reflect the characteristics of porcelain, so the above respectively.
(1) high-silicon electrical porcelain. Chemical composition Si02 content of up to 72%. As a general high-voltage high-strength porcelain products are applied. Chemical composition range is as follows:
Si02 72 ~ 75%
A1203 20 ~ 23%
CaO + MgO <1.2%
Fe203 <1%
K20 + Na2O 2.5 ~ 3.0%
Mineral composition ranges:
45 to 55% clay
18 ~ 22% feldspar
Quartz 30 ~ 40%
The main physical properties: the pore pressure of 600 hours does not absorb red, water absorption equal to zero. Unglazed strip of flexural strength of 900 ~ 1150kg / cm2.
(2) aluminum, porcelain, chemical composition A1203 content of more than 40% of high-strength porcelain. Generally with calcined alumina or calcined bauxite industry instead of feldspathic porcelain quartz. Its presence in more microscopic structure of corundum, mullite crystals. High alumina ratio of siliceous porcelain porcelain better meet the performance requirements of some extra-high voltage porcelain products. Its chemical composition are:
Si02 40 ~ 45%
A1203 40 ~ 55%
CaO + Mg0 <1.2%
Fe203 <1%
K20 + Na20 3.5 ~ 4.5%
Mineral composition ranges:
45 to 55% clay
25 to 30% feldspar
Alumina or alumina 20-40%
The main physical properties: the pore pressure of 600 & S226; hours without red absorption, water absorption equal to zero, unglazed strip of flexural strength of 1200 ~ 1700kg / cm2.
(3) feldspathic porcelain. Is made of clay, feldspar, quartz, porcelain ordinary preparation firing. As the level of piezoelectric ceramic products in general use, the chemical composition ranges:
Si02 68 ~ 72%
A12032 0 ~ 24%
CaO + Mg0 <1.2%
Fe203 <1%
K20 + Na20 03.5 ~ 5.0%
Mineral composition ranges:
45 to 60% clay
Feldspar 25-35%
Quartz 20 ~ 30%
Microstructure by a crystal phase, the composition of the glass phase and closed porosity. The main physical properties: the pore pressure of 600 hours does not absorb red, water absorption equal to zero, unglazed strip of flexural strength of 700 ~ 900kg / cm2.
In addition, the power system is also used in some special ceramics. Titanate ceramic capacitors made; alumina ceramic interrupter switch cover; alumina, plus charcoal fired clay ceramic linear resistance, and so on.
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