China Machinable Glass Ceramic Mgc Plate Disk Block

Gongtao company specializes in the production and research of machinable ceramic .The main products:Machinable ceramics and tools, with good machining performance, good vacuum, high and low temperature resistance, insulation and acid-corrosion ect properties.It can be widely used in aviation, aerospace, electronics substrates, high temperature insulation skeleton, ion plating, vacuum coating, plasma display mirror,ion accelerators, lasers, and medical devices.
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 °C to 0 °C ,the intensity does not change.
The main advantage:
-It can be turned,milled,grinded,drilled and tapped and other machining.
-Precision machining dimensions.
-Non-magnetic.

ItemStandard valueRemarksDensity2.7g/m³ Porosity0.096% Water absorption0.038 Hardness4-5MohsColorpure white Thermal expansion coefficient86x10 -7 /°C100°C ~600°C average valueThermal conductivity 1.68W/m.k25°CWorking temperature800°C Bending Strength108MPa Compress strength488 MPa Impact Toughness>2.56KJ/ m 2 Modulus of elasticity65GPa Insertion loss1~ 4x10 -3Room temperatureDielectric constant6-7"Dielectric strength>40KV/mmThickness of sample 1mmBulk density1.08x10 14 Ω.cm25°C1.5x10 10200°C1.1x10 7500°CGas efficiency at normal temperature8.8x10 -9 ml/s. cm 2Vacuum experienced for eight hoursHelium permeating rate 1x10 -10 ml/sAfter 500C burning,cool to room temperature.5%HC10.26mg/ cm 295°C,24 hours5%HF83mg/ cm 2"50%Na2CO30.012 mg/ cm 2"5%NaOH0.85mg/ cm 2"