Negotiable
The date of payment from buyers deliver within days
Beijing
Long-term effective
2020-08-10 10:35
294
Company Profile
Shenzhen Jinlongda Ceramic Technology Co., LtdBy certification [File Integrity]
Contact:jldtc(Mr.)
Email:
Telephone:
Phone:
Area:Beijing
Address:Beijing
Website:http://www.jldceramics.com/ http://jldtc.civilpacktech.com/
Alumina (Al2O3) ceramics is an advanced ceramic materials. In addition, it has the advantages of super hardness, high wear-resisting,good corrosion resistance and electric insulation,resistant acid-base,high intensity,thermostable,high temperature tolerance,good insulation,high strength,precision process,high mechanical strength,good chemical stability.
Different product shapes, sizes, complex shapes and precision products require different molding methods. Generally use <1μm micron Al2O3 powder or diamond paste for grinding and polishing. In order to strengthen the alumina ceramics, the technical method adopted is to coat a layer of silicon compound film on the surface of alumina ceramics by electron beam vacuum coating, sputtering vacuum coating or chemical vapor deposition method, and the temperature is 1200℃~1580℃. Heat treatment to temper the alumina ceramics.
Product parameter table
Item |
Test the condition |
Unit |
99 porcelain |
95 porcelain |
92 porcelain |
75 porcelain |
|
Material |
- |
- | - |
99%Al2O3 |
95%Al2O3 |
92%Al2O3 |
75%Al2O3 |
Physical property |
Density |
Normal atmospheric temperature |
g/cm3 |
4.02 |
3.7 |
3.4-3.7 |
3.2-3.4 |
Water Absorption |
Normal atmospheric temperature |
% |
0 |
0 |
<0.5 |
<1 |
|
Refractoriness |
- |
°C |
1750 |
1650 |
1580 |
1360 |
|
Mechanical performance |
Rockwell hardness |
Normal atmospheric temperature |
Mohs |
12 |
10 |
12 |
10 |
Flexural Strength |
Normal atmospheric temperature |
Mpa |
330 |
300 |
290 |
380 |
|
Compression strength |
Normal atmospheric temperature |
Mpa |
2800-3000 |
2500-2800 |
2500 |
2000 |
|
Hot performance |
Maximum Use Temperature |
- |
°C |
1700 |
1500 |
1500 |
1300 |
Heat resistant shaking |
20O°C-1100O°C |
10Num |
Pass |
Pass |
Pass |
Pass |
|
Thermal Expansion Coefficient |
20O°C-80O°C |
×10-6mm/°C |
6.4-8.2 |
5.5-7.5 |
7.0-7.6 |
7.3 |
|
Heat-conduction rate |
25°C |
W/m.k |
31.4 |
21.8 |
15-20 |
6-7 |
|
W/m.k |
15.9 |
12.6 |
FAQ
Q1: The quality of how?
A: We insist on providing quality products to our customers.
Q2: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. Or it is 15-30 days if the goods are not in stock, it is according to quantity.
Q3: Do you provide samples? Is it free or extra?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q4: What is your terms of payment?
A: Payment<=1000USD, 100% in advance. Payment>=3000USD, 50% T/T in advance, balance before shippment.
Q5: Can I visit you?
A: Sure. If you're a volume buyer and would like to visit our in-house products and production line, please contact us to make an appointment.
http://www.jldceramics.com/
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