HDZS-65 only has a high standard of porosity, and its corrosion resistance is slightly lower than that of similar foreign products, while other indicators are equal to or better than foreign standards. In terms of alternative imports, in addition to requiring the use of imported products for contact-resistant glass parts with extremely high erosion resistance, other backing bricks and hooked bricks such as tile and pool wall tiles may be replaced by domestically produced materials. Spill bricks due to the special use of the environment, on the basis of resistance to erosion also require good resistance to quenching and rapid heat, requiring bulk density 3.95g/cm3, apparent porosity 70N/mm2, load softening point 1700Ta °C, heat resistance The number of earthquakes is more than 20 times. HDZS-69 indicators have reached the requirements of skipping bricks, and have been tested on some domestic alkali-free glass fiber tank kiln. It is reported that several alkali-free fiberglass tank kilns that are currently under construction in the country will all use HDZS-69 as leakage bricks instead of imported products.
The standard zirconium bricks (Machine Press Forming) standard zirconium bricks are generally used in the space in contact with the kiln flame space and as back lining bricks for dense zirconium bricks, requiring strong corrosion resistance and a higher load softening point. Physical and chemical indicators of foreign products: ZrO265%, SiO234%, Fe3O2 ceramic fiber paper bulk density of 3.85g/cm3, apparent porosity rate ≤10%, room temperature compressive strength> 110N/mm2, load softening point> 1700 °C. At present, the more commonly used foreign brands are: ZPR from USA CORHART, ZS65AL from Germany VGT, and ZBK-L from Japan Shinagawa. This index is basically the same as the index of similar products in foreign countries. In the kiln observation hole, chest wall, feed port brick, access burner brick, cover tile, backing lining of ceramic fiber dense zirconium brick and other parts can replace imported products.
The domes and stampede bricks require strict creep resistance and thermal shock resistance. In this area, re-sintered mullite bricks with Al2O375%, Fe3O2 ≤0.3%, and SiO224% should be used, and the porosity should be kept at 13%. Below, the phases of corundum and mullite are evenly distributed. The commonly used foreign brands are USA CORHART and MU75AF of German VGT. In recent years, according to the special requirements of alkali-free fiberglass tank kilns, the domestic refractory materials plants have continuously improved on the basis of the original products, and have their own alternative imported products, and have been successfully applied in the kilns. The use of mullite bricks in the other parts of the kiln furnace is relatively lower than that of ramming bricks, and domestic refractories can meet the requirements for use.
In generally, the Window Screen including Stainless Steel Window Screen, Aluminum Window Screen, alloy window screen, fiberglass window screen, etc .
The weave type is flat weaving.
Surface treatment of window screen: painted, glavanized, PVC, etc .
The window screen is generally used in hotels, public construction, civil buiding block of the mosquitoes and other insects.
Advantages of window screen :
light weight
good toughness
embroidery
ventilated good corrosion resistance
easy to clean
Window Screen
Window Screen,Aluminum Window Screen,Plastic Window Screen,Stainless Steel Window Screen,Stainless Steel Wire Mesh
ANPING COUNTY SHANGCHEN WIREMESH PRODUCTS CO.,LTD , https://www.scfiltermesh.com