Material and Technique
Zirconia corundum mullite refractory bricks(AZS bricks) are mainly for glass furnace. use special grade bauxite and zirconite concentrate as the raw materials, are produced by reaction bonded process, introducing ZrO2 into mullite matrix, are high grade refractories.
AZS bricks & blocks can be use for glass melting furnace and fiber glass furnace, because of the following characteristics:
1. High refractoriness;
2. Good thermal shock resistance;
3. Good creep-resisting property;
4. Good chemical stability;
5. Good high temperature strength and volume stability.
6.High erosion resistance
AZS bricks which have the features of properly sintered, porosity at normal levels, good high temperature strength and volume stability can be used for L-shaped suspended arch building in glass furnace.
|Chemical Composition||Al2O3 %||≤50||≤45|
|Bulk density g/cm3||3.6||3.9|
|Cold crushing strength MPa||≥300||≥300|
|Refractoriness under load(0.2MPa,0.6%) ºC||≥1680||≥1680|
|Exudation Temperature of Glass Phase||≥1400||≥1410|
|Bubble Separation Ratio (1300ºC*10h)||≤1.5||≤1.0|
|Anti-corrosion rate of glass liquid 1500ºC*36h(mm/24h) %||≤1.45||≤1.2|
|Apparent density g/cm3||PT||≥3.45||≥3.7|
Hitech Material Group is a specialized group in refractory materials and insulation products. The headquarter is named "Zibo Hitech material co., ltd" , which is located in Zibo city, Shandong province. In addition, there are 3 factories under the Group.
Our company mainly develop and manufacture refractory bricks, monolithic refractories and ceramic fibers, which has 5000 m2 machine pressure workshop, 3000m2 the castable workshop, two 86 m and 75 m tunnel kilns, 16 sets of 350 t - 1000 t friction press, 3 sets of automatic batching system.
Hitech passed ISO 9001-2000 international quality system certification, that strictly keep accordance with the approved specification and standard requirements for production and marketing.
In recent years, Hitech has been developing new products constantly, exploring new technologies and new processes and results. Hitech have offered large amounts of refractory products and insulation products for many national important projects, and participate in many domestic and foreign large-scale engineering design and construction.
With advanced production technology, technical equipment, integrated and scientific quality control system, our products are widely used in the field of metallurgy, cement, glass, electricity, oil, chemical engineering, machinery, aerospace, construction.
Hitech Material has been in international exhibition since 2007. Hitech materials are highly commended by domestic and overseas customers with excellent quality, precise measurement and good appearance.
Our products are exported to USA, Canada, Argentina, Spain, Brazil, Mexico, Italy, Germany, Netherlands, Belgium, Turkey, Norway, India, Pakistan, Korea, UAE, Saudi Arabia, Iran, Iraq, Australia etc. Hitech materials are highly commended by domestic and overseas customers with excellent quality, precise measurement and good appearance.
Hitech would like to get your cooperation and support by our exquisite technology, excellent product quality and service. Offering continually high quality service is our unremitting pursuit.
1. How you can control your quality?
For each production processing, we have complete QC system for the chemical composition and Physical properties.
After production, all the goods will be tested, and the quality certificate will be shipped along with goods.
2. What's your delivery time?
It usually needs about 20-45 days after receiving the deposit.
3. Do you provide free samples?
Yes, we can provide a free sample for testing, If we have sample in stock.
The quantity based on the material type, The buyer should bear all the shipping costs.
4. What's your payment terms?
We can accept 30% deposit, 70% balance before shipment for ordrs over $ 2000.
5. Can we visit your Company?
Yes, certainly. You are very welcome to China and we will be honored to have a customer and friend.
6. What standards do we have?
Our products meet the standards, such as ASTM, ASME, AMS, DIN, JIS etc.
The third party testing is all available for us.
For more details, please visit our official website: http://hitechmaterial.en.made-in-china.com