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Ningbo HHC Ceramic Connectors CO.,LTD  

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99% alumina material tubes 

Price: 2.0 USD 
Payment Terms: T/T,L/C 
Place of Origin: Zhejiang, China (Mainland) 
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Product Detail

Model No.: CC-tube
Production Capacity: 30,000pcs monthly
Delivery Date: in two months
Material: 95%-99%Alumina material
Density: 3.8-3.9
Electrical insulation strength: 15-20
High temperature insulation resistance: 1000℃
Dimension: Diameter 8-200mm
Means of Transport: Ocean,Air
Packing: bulk and soft plastic bags ...
Model: CC-tube
Surface treatment: Polished
Thermal conductivity: 25
20℃ DC insulation resistance: 1014
Workig condition temperature: 1400-1900 degree

1.95-99% Alumina
2.Color was white or other
3.Polished surface
4.Good performance in insulation, resist high temperature
5.Dimension per customer

1.Description

This part was made in high purity 99% alumina ceramic material.  It was white ceramic tubes parts, which was designed per customer request .  The ceramic tube surface was polished. Very good quality

99% alumina tubes( 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. We had so many specification tubes 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.


Mr. andy
skype Mr. andy

Tel: 86-574-88026993
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Company Info

Ningbo HHC Ceramic Connectors CO.,LTD [China (Mainland)]


Business Type:Manufacturer, Trading Company, Service
City: Ningbo
Province/State: Zhejiang
Country/Region: China (Mainland)

liu.andy925:   skype

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