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Help CenterStandard Quartz Glass Ground Joint
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Product Introductions
Appearance: clear and clean surface
dia:10mm--customer design ,length and thickness based on drawing
Material: fused Quartz,
Processing Technique: thermal process,
Regular working temperature: 1200°C
Resistant of strong chemistry like acid or alkali
Application: flexible connection for quartz parts
Physical Parameter of ZCQ Quartz Products:
Parameter |
Standard |
Precision |
Ultra precision |
Dimensional Tolerance |
±0.1 |
±0.1 |
±0.1 |
Clear Aperture |
>80% to >90% |
>80% to >90% |
>80% to >90% |
Surface Quality |
60-40 |
40-20 |
20-10 to 10-5 |
Parallelism |
1 arc min |
30 arc seconds |
1 arc min |
Wavefront Distortion |
1λper 25mm |
λ/4 |
λ/10 |
Protective Bevel |
<0.25x45 deg |
<0.25x45 deg |
<0.25x45 deg |
Coating |
optional |
||
Technical Information :
Density |
2.203 g/cm3 |
Hardness |
7 (Modified Scale); 5.36.5 (Mohs Scale) |
Tensile strength |
48.3 MPa |
Compressive strength |
>1.1 GPa |
Bulk modulus |
~37 GPa |
Rigidity modulus |
31 GPa |
Young's modulus |
71.7 GPa |
Poisson's ratio |
0.16 |
Coefficient of thermal expansion |
5.5×10-7 cm/(cmK) ( from 20°C to 320°C) |
Thermal conductivity |
1.3 W/(mK) |
Heat capacity |
45.3 J/mol |
Softening point |
1730°C |
Annealing point |
1180°C |
Strain point |
1075°C |
Electrical resistivity |
>1018 Ωm |
Dielectric constant |
3.75 at 20°C 1 MHz |
Dielectric loss factor |
less than 0.0004 at 20°C 1 MHz |
Index of refraction at 587.6 nm (nd) |
1.4585 |
Production Process:
Thermal processing
Applications:
l Electro Optics
l Pressure Windows
l Inspection Windows
l Sensor and Measurement Systems
l Analytical Instruments
l Scientific Research
Shipping Methods:
l EMS Express
l International Air Mail
l DHL Express
l TNT Express
l FedEx Express
Company Profile
l Private owned Ltd company established in 1998 manufacturing quartz and optical glass products.
l ISO 9001 Certified in 2008.
l Qualified personnel Total Stuff: 80
l Total Area: 22,000sqm (Workshop: 5,000sqm)
l Annual Turnover for Year 2012(Including Estimated the Fourth Season) USD 4,700,000
l Target Annual Turnover for Year 2014 USD 60,500,000
Company advantages
Located in Beijing suburb, ZCQ (Zhong Cheng Quartz Glass Co., Ltd)enjoys both beautiful natural and technology environment. With mountains sitting around, river passing through in front , ZCQ works in line with foremost technology by producing high quality quartz products. The most recognized products include quartz boat, quartz capillary tubes( with holes, square shape), fused silica windows, vacuum bell jars, UV glass filter and borosilicate tubings.We are also professional in producing lab supplies for science research projects. The most impressive things are that we can do projects challenging for general manufacturers. We ever produced micro pipe of 0.01mm pipe within a few mm capillary tubes, repaired bell jars resistant of 1300 celsius degree bell jar. Another pride is our thermal processing products . Project equipments with weird shapes and high precision difficulty can be done here .
ZCQ is interested in talks with technology and industry caring human life. If only you think your business could help us develop under this theme, please do not hesitate to contact us. We are dedicated in establishing long term partnership with global friends by supplying you high quality products and services!
WELCOME TO USE ZCQ PRODUCTS FOR BETTER TECHNOLOGY AND LIFE!
package: protection paper, green air bag, air film, carton ,
safe and ecnomic even for freight collect as well.
Shipping methods and charges:
China post(15-25days)
Epacket to USA (10-15days)
EMS(7-10days)
Fedex(5-7days)
DHL(5-7days)
Actual shipping charge will be calculated upon product weight.
1.Based in Beijing, heart of China, ZCQ is a technology and quality oriented manufaturer with 20 years history.
2.With senior engineer supervise, we are glad to advise customers on pressure, temperature etc application and engineering questions.
3.ZCQ accepts second production in case some products don’t meet requirements.
4.1 hour from international meeting center of Beijing, ZCQ invites guests to visit our company after long day meeting and get relaxed in nature. Our company is also sitted in arms of mountains and river.
Send Inquiry to This Supplier
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