Manufacture supply tabular alumina price
- A pelletizer is used to form balls from fine calcined alumina continuously ground to maximise the green strength and forming capability of the alumina.
Use of an organic binder gives temporary cohesion. The addition of boron is possible to reduce soda during heating.
- The balls are dried before being loaded into the kiln. The key stage is the continuous sintering of the balls, with diameter from 6-26mm, at very high temperatures. In a 9m high vertical shaft kiln, for example, equipped with gas burners, temperatures can exceed 1900°C in the hottest zone.
The balls take 15 hours to descend through the furnace, following a heating and cooling cycle.
After sintering the balls have low residual porosity because they have shrunk by 20%.
- They are then crushed, ground, iron is removed magnetically, and finally screened into a range of grain size distributions from 45µm to 10mm.
- Tabular alumina is made up of grains of alpha alumina with a diameter of 50 to 300 µm, formed by crystalline growth during sintering.
- It is dense, >3.55g/cm-3, and only slightly porous, < 5%.
- Its spherical porosity is mainly closed - water absorption: 1.5% - preventing cracks from spreading.
High purity tabular alumina can be produced (99.8% Al2O3, Na2O < 1000 ppm) aided by the absence of non-volatile mineral additions in the preparation of green balls.
It is therefore very refractory and not subject to high temperature creep.
• Chemical inertness– resistant to most alkalis and mineral acids
• High-density
• Low water absorption
• Extreme hardness
• High thermal conductivity
• Good resistance to thermal and mechanical shock
• High heat capacity
• High electrical resistance
• Excellent abrasion resistance
Why choose us
Our services
1.We can offer you the customer size services.
2.We can offer you the best quanlity and price.
3.We can offer you the related test report,both at factory and the third party.
4.Packaging: 25/50kgs per bag or as client's requirement.
5.We have sufficient manufacturing capability to delivery the goods safely and in time,because we have strong : own reliability testing lab ,most importantly, we owed productive factory.
Company information
Henan Sicheng Abrasives Tech Co., Ltd, founded in 1999, is specialized in White Fused Alumina, Brown Fused Alumina, Silicon Carbide, Glass beads and other abrasive products. Our production runs under the certifications of GB, ISO, FEPA, and JIS. We offer various items depending on the demands of our customers.Based on the principles of equality and mutual benefits, we persist in abiding by agreements; enable us to do business and cooperation with all countries in the field of economy and technology.
FAQ
1. Q: Do you provide free sample?
A: Yes, We provide sample for free but the freight will be on your side.
2. Q: Do you receive L/C payment terms?
A: Yes, we do.
3. Q: When will you deliver the goods?
A:Within 5 days after payment in general.
4. Q: Can you customized package according to customer?
A: Yes, We can do OEM products and package, tailored products provided according to your requinments.
5. Q: Are you a manufacturer or trader?
A: We are the manufacturer.
6. Q:How do you check all the goods in the production line?
A:We have spot inspection and finished inspection.
We check all the goods when they go into next production procedure.
Contact Us:
Mob : 0086 18236795218
WhatsApp : +8618236795218
Skype : Krystal Dai
