Gạch gốm nhôm Al2O3 có đường kính lớn, chịu nhiệt độ cao, được tùy chỉnh để hỗ trợ vận chuyển lò nung nhiệt độ cao

Product DescriptionAlumina Ceramic RollerAlumina Ceramic Roller1. Support proofing 2. If there is damage, we will compensate 3. Support factory inspection 4. No MOQ 5. Error ±0.001 6. Can check the quality 7. Environmental protection materials8. Support expedited delivery 9. Drawing samples 10. Global transportation 11. Mili tary aerospace applications 12. Support after-tax delivery 13. The pictures are all real shots 
14. Multiple payment methods About Ceramic RollersCeramic roller is a kind of refractory material in roller kiln, as the role of bearing and transmission in the furnace. With the development and production of ceramic,roller kiln is widely used in building sanitary ceramics, daily porcelain and specialty ceramics. The requirements of refractory material used in furnace is continuous improvement, especially for strength and high temperature mechanical properties of roller presented updated requirements. Alumina ceramic rollers is the development trend for ceramic rollers, because they fully meet the various needs of ceramic tile production, with the other advantages which other ceramic roller can not be of. Ceramic rollers project is a key component of modern industrial track kilns, and can transmiss and bear ceramic products at temperatures of up to 1400 °C. Alumina ceramic roller has good high temperature resistance, hardness and carrying capacity is very strong, Alumina ceramic roller is widely used in high temperature furnace. It can be used to fire wall tile, glazed floor tile, sanitary ware and so on.Specification

Item	Unit	VH95	VH90	VH85	VH80	VH++
Al2O3+ZrO2	%	80~82	78~80	76~78	80~82	88
Apparent porosity	%	16~20	17~21	18~22	16~20	18
Water absorption rate	%	6.5~8.5	7.9~9.0	7.5~9.5	8.0~10.0	7.5
Density	g/cm3	2.65~2.70	2.55~2.65	2.50~2.60	2.45~2.55	2.68
Flexural strength	Mpa (20℃)	65~70	60~65	55~60	50~55	68
The max using temperature	℃	1350	1330	1300	1250	1400
Load softening start temperature	℃ (0.2MPa)	1590	1580	1560	1550	1600
Thermal expansion coefficient	×10-6/℃(25~1000℃)	5.7	5.7	5.6	5.5	5.7
Straightness	mm	≤0.07%
Tolerance of OD	mm	+0.3~-0.7(≥Φ50)		+0.3~-0.5(Φ50)
Roundness	mm	O<0.5(≥Φ50)	O<0.4(Less thanΦ50)

Main Usage1. Heat treatment furnace and toughened furnace 2. Inner liner tube and heating tube in electric furnace1.Great mechanical strength 2.High softening temperature 3.Good resistance to thermal impact4.Small thermal expansion coefficient 5.Good chill and abrupt heat properties 
6. Resistance to acid and alkali corrosionOur FactoryCertification & DeliveryCompany ProfileShenyang Vhandy Technology Co., Ltd. has been committed to the design, development and manufacture of industrial ceramics, specialized in manufacturing and exporting ceramic products, such as zirconia ceramic, alumina ceramic, cordierite, mullite, ZTA, silicon carbide, silicon nitride, boron carbide, boron nitride, etc.
After years of efforts and explorations, rich experience has been accumulated, especially in domestic and oversea ceramic processing. Producing capabilities include the latest pressing and compaction technologies, state of the art CNC green machining, sintering and precision diamond grinding techniques. With senior scientists and skilled technicians, we can handle customer drawings under the R&D, producing and processing all types of ceramic pieces. Our products have already passed the ISO 9001 quality certification system and SGS ROSH system. Because of stable performance and high precision, our products have been successfully used in various areas, including electronic, mechanical, aerospace, textile, chemical fileds, as well as scientific researches.
Quality, service and reputation are three main purposes of our company. We will manage our production and check standards strictly according to client's drawings. We promise we will spare no efforts to serving our clients with high-quality products. Welcome clients around the world come to contact us.FAQQ: Are you trading company or manufacturer?
A: We are manufacturer.
Q: How long is your delivery time?
A: Generally within 30 working days, it is according to quantity.
Q: Do you provide samples? Is it free or extra?
A: The samples can be provided, but the shipping cost should be on buyer's account.
Q: What is your term of payment?
A: Payment<=10000 USD, 100% in advance. Payment>=10000 USD, 70% T/T in advance, balance before shipment.