1.Description
This part was made in high purity 99% alumina ceramic material. It was white ceramic alumina parts, which was designed per customer request . The alumina parts surface was polished.
99% alumina parts( density 3.8-3.9 and working condition temperature1400-1900 degree)
2. Physical performance
They were widely used in electrical components field , such as the electrica heaters, thermocouple and so on. The alumina material was very good in resist high temperature .Also, they can had the very good insulation performance. The tubes parts can work very well in the condition to meet customers' physical performance request. The working condition can be 1400-1900 degree high temperature
3. Process
1)We will design and make the very precise mould per customer drawings dimension request.
2)Generally, we will use the hot forming process to burn and form this ceramic parts or extrusion forming the tubes.The temperature was very sensitive for alumina material to affect the dimension changing or out of specification.So will adjust it per the different lot material characteristic to gurantee the dimension was in specification.
3) After finished them, we will polish the tubes surface and we will arrange the inspection for the dimension and apperance .
4)Carefully packing them to gurantee without any crack in transitment. Using soft plastic bags and carton and enforce the pallet before sea shipment .
4. The physical parameters.
1Al2O3 percent | % | 99.7 | 99.3 | 85 | |||
2 | SiO2 percent | % | ﹤0.1 | — | — | ||
3 | density | g/cm3 | 3.95 | 3.88 | 3.2 | ||
4 | water absorption | % | 0 | 0.01 | 0.2 | ||
5 | MPa in normal temperature | MPa | 450 | 350 | 200 | ||
6 | 20℃ leakage percent | Torr/L.sec | ﹤10-11 | ﹤10-11 | ﹤10-11 | ||
7 | High temperature bending | ㎜ | 1700℃ permissing 0.2 | 1600℃ permissing 0.2 | 1400℃ permissing0.2 | ||
8 | High temperature cohere | 1700℃ no cohere | 1600℃ no cohere | 1400℃ no cohere | |||
9 | 20—1000℃ Thermal expansion coefficient | ㎜.10-6／℃.m | 8.6 | 8.2 | 8.2 | ||
10 | Thermal conductivity | W/m.k | 25 | 25 | 25 | ||
11 | Electrical insulation strength | KV/㎜ | 20 | 20 | 15 | ||
12 | 20℃ DC insulation resistance | Ohm/㎝ | 1014 | 1014 | 1014 | ||
13 | High temperature insulation resistance | 1000℃ MΩ | ≥0.08 | ≥0.08 | ≥0.08 | ||
1300℃ MΩ | ≥0.02 | ≥0.02 | ≥0.02 | ||||
14 | Resis high temperature and low temperature | 1550℃ 6 times no crack | 1550℃ 6times no crack | 1300℃ 3times no crack | |||
15 | Highest working temperature | ℃ | 1900 | 1800 | 1400 |
5. Capacity
Each month 30,000pcs. We also can adjust our production capacity per your request.
6. Quality and shipment
We will inspect all our parts before shipment to gurantee the dimension was OK and the appearance without any defects.
Our quality system was ISO 9001. We will always supply customer ontime shipment service.
7. Quality feedback
If you found out any defects in the shipment, we will send you the addtional quantity to you soon as we can. And i will give
you the 8D report to find the root cause to avoid this next time. All your any concerning or complaint, it will be replied in 24 hours.
8. Payment
We can accept TT. And if you have concerning, we can have discussion
9. Customer service
We can design the parts per customer request and parts working conditions. We also can make the parts per customer
drawings request.
10. Advantage(Why you should choose us)
We were very specialized in producing alumina tubes and other alumina parts. We had so many specification tubes and alumina parts in our inventory. we can supply you various tubes with different request. So we can use a very low cost to make the connectors under high quality level. Many parts we had moulds inventory, so you need not pay the mould cost again. It will be much benefit for you and decrease your risk.We were not trading company. We were professional manufacturer. We can control the whole process from material to finished parts and shipment and business process. We can export the parts ourselfves and can save so much cost and keep the prices competitive. It was right that you choose us.
11. We added another production line to burn more parts in one time to gurantee all the dimension more even and
gurantee the shipment on time.
