Share on:
High strength machinable macor glass ceramic rod
Machinable glass ceramic is a highly electrical insulating, heat insulating, vacuum tight composite material of glass and ceramics. It is machinable with common tungsten carbide or high speed steel cutting tools by turning, milling, drilling and sawing. Due to the machinability, customers can produce the ceramic parts in their own common workshop or laboratory, mainly for applications as electrical insulators, vacuum components, etc. Different sizes of standard length or customers' parts are available.
Our machinable ceramic has good machining performance,and can be turning,milling, grinding, drilling, drilling and tapping and other machining by ordinary machine tools and cutting tools.The machining accuracy can reach up to 5μm, finish high up 0.5μ.It has a good vacuum,high and low temperature resistance, insulation and acid and alkali corrosion resistance ect properties.
Thermal shock resistance of machinable ceramic is very good, quenching from 800 °C to 0 °C,no broken, from 200℃ to 0℃ ,the intensity does not change.
Main advantage:
-It can be turned,milled,grinded,drilled and tapped and other machining.
-Precision machining dimensions.
-Non-magnetic.
Index:
Item | Standard value | Remarks |
Density | 2.7g/m³ |
|
Porosity | 0.096% |
|
Water absorption | 0.038 |
|
Hardness | 4-5 | Mohs |
Color | pure white |
|
Thermal expansion coefficient | 86×10-7/°C | 100°C ~600°C average value |
Thermal conductivity | 1.68W/m.k | 25°C |
Working temperature | 800°C |
|
Bending Strength | 108MPa |
|
Compress strength | 488 MPa |
|
Impact Toughness | >2.56KJ/ m2 |
|
Modulus of elasticity | 65GPa |
|
Insertion loss | 1~ 4×10-3 | Room temperature |
Dielectric constant | 6-7 | " |
Dielectric strength | >40KV/mm | Thickness of sample 1mm |
Bulk density | 1.08×1014Ω.cm | 25°C |
1.5×1010 | 200°C | |
1.1×107 | 500°C | |
Gas efficiency at normal temperature | 8.8×10-9 ml/s. cm2 | Vacuum experienced for eight hours |
Helium permeating rate | 1×10-10ml/s | After 500C burning,cool to room temperature. |
5%HC1 | 0.26mg/ cm2 | 95°C,24 hours |
5%HF | 83mg/ cm2 | " |
50%Na2CO3 | 0.012 mg/ cm2 | " |
5%NaOH | 0.85mg/ cm2 | " |
Packaged by polybay and bubble bag in the stardard export carton
Every package can be offered with English installation instruction
The buyer payment within 30 days after shipment
Q: We mainly accept T/T, West Union, Credit card and L/C.
Paypal will be available in the near future.
Q: What is your delivery time?
The time of delivery is about 7-30days after we receive the deposit.
Q: Where is your main market?
We have been exported to USA, Korea, UK, France, Russia, Germany, India, Spain, Brazil etc, so far, there is about 94 countries we have been exported, we also get good reputation from our customers.
Q: What's the purity of this ceramic?
Alumina ceramic, zirconia ceramic.
Q: Do you accept customized dimension?
Yes, we can produce ceramic parts per customer's request.