Import-Export Bulletin Board Post an Offer to Sell

New here? Please subscribe
to post trade leads. It's FREE!

Watch Parts & Accessories

Home > Offers to Sell > Timepieces, Jewelry & Eyewear > Watches > Watch Parts & Accessories

Browse leads by category:
  Digital Watches  
Automatic Watches  Sports Watches  Digital Gear Watches
Kids Watches  Brand Watches  Watch Parts & Accessories
Watch Bags & Cases    Others

Summary of 1/23/22 3:56 GMT:>> Show Compact View
12/23/21 6:25 GMT
Customized ODM Service Sapphire Crystal Watch Case High Mechanical Strength

Product Description Blue Color Sapphire Watch Case For Luxury Brand Czochralski method, or CZ method for short. First heating the raw material to the melting point and then melting to form a melting soup, and then using a single crystal seed to contact the surface of the melting soup, in the crystal seed and the solid liquid interface of the melted soup due to the temperature difference and formed too cold. So the melted soup began to solidify on the surface of the seed and grow a single crystal with the same crystal structure as the seed. The seed is also pulled up at a very slow speed, and accompanied by a certain speed of rotation, with the upward pull of the seed, the melt soup gradually solidified on the liquid solid interface of the seed, and then formed a axis of symmetrical single crystal ingot. FATURES 1. High transmittance 2. High mechanical strength 3. High temperature resistance 4. Scratch resistance 5. Abrasion resistance 6. Customized shape 7. Optional color Property Specifications Thickness 0.5-200mm Size Tolerance ±0.01 Edge Finish Ground and beveled Surface Quality 40-20 scratch-dig Surface Flatness λ/4@633nm Parallelism ≤3 arc min(≤0.9mrad) Clear Aperture >80% of central diameter Hardness(Knoop) 1370 kg/mm2 Young's modulus 3.4*1011N/m2 Thermal Limit 22W/m/K Thermal expansion coefficient 8.4*10-6/K Customized ODM Service Sapphire Crystal Watch Case High Mechanical Strength 0Customized ODM Service Sapphire Crystal Watch Case High Mechanical Strength 1Customized ODM Service Sapphire Crystal Watch Case High Mechanical Strength 2 These excellent optical, mechanical, thermal, chemical and electrical properties determine its important position and role in the military and civilian fields. (1) Chemical stability: Sapphire has a high degree of chemical stability and will not be corroded during most chemical reactions. (2) Mechanical properties: Due to its high hardness and high strength, sapphire single crystal can maintain high strength, wear resistance and high stability in different environments ranging from ultra-low temperature to 1500 ℃ high temperature. At the same time, it is the oxide crystal material with the highest hardness currently known, second only to diamond up to 9 on the Mohs scale. (3) Optical transmittance: The penetration wavelength range of sapphire single crystal material is 0.19nm-5.5nm, coupled with its excellent chemical stability, abrasion resistance, high hardness and high temperature resistance, make the windows made of sapphire and Sensor optical parts are widely used in high vacuum systems, high temperature furnaces and other harsh environments. (4) Thermodynamic properties: The melting point of about 2050°C, coupled with superior chemical, mechanical and optical properties, make sapphire crystals widely used in many harsh processing environments. (5) Wear resistance: Because of its high hardness and transparency, sapphire crystals are often used to make wear-resistant windows or other precision mechanical parts. (6) Dielectric properties: dielectric insulation and constant dielectric constant. (7) Sapphire also has high tensile strength, erosion resistance, thermal conductivity, and remarkable thermal shock resistance.

Ms. Florence Chen

Send Inquiry
Chongqing Chitwing Silian Optoelectronics Co., Ltd
No.99 Tongxi Rd.Caijiagang Town,Beibei District,Chongqing China, 400707
Chongqing 400707
7/26/21 4:01 GMT
35mm Anti Reflective Sapphire Crystal

Product Description Round Plano 35mm Sapphire Watch Glass with magnifying lens for Rolex diving watch Why Choose sapphire crystal? Today Sapphire is still a Stone of Wisdom, a royal stone of learning, mental acuity and psychic activation, a seeker after spiritual truth. Its pure Blue Ray brings order and healing to the mind, lending strength and focus, and an ability to see beneath surface appearances to underlying truths and to utilize that knowledge. Sapphire Windows are manufactured from single crystal sapphire, making them ideal for demanding applications (such as laser systems) because of their extreme surface hardness, high thermal conductivity, high dielectric constant and resistance to common chemical acids and alkalis. Sapphire is the second hardest crystal next to diamonds and, because of their structural strength, sapphire windows can be made much thinner than other common dielectric windows with improved transmittance. Chemically, sapphire is single crystal aluminum oxide (Al2O3), and is useful in a transmission range from 0.2 - 5.5µm Production description: Chemical composition Al2O3 Density 3.98g bendin , g strength 320-930Pa Vickrs hardness 1800-2200 optical transmission >90% melting point 2050℃ Mohs hardness 9(Next only to diamonds:10) Bevel 0.1-0.5mm Coating u , pon customer request Material Sapphire Shape Round, square, rectangle; flat, dome, curve, bridge ,pot Cover shape, etc. Size Customized according to customers requirement Company profile: JADEZONE Sapphire optical Co.,Ltd. is a factory which is specialized on sapphire glass with 10 years export expreience. Factory covers 3,000 square meters. We got eight patents and one software copyright, and passed the ISO9001 quality certification and ISO14000 environmental certification. Packing&Delivery: About Packing : Stand export carton About Delivery: DHL/UPS/TNT/EMS/FedEX ,you can choose whatever you like.

Miss. Cao

Send Inquiry
Shenzhen Jadezone Sapphire Optical Co., Ltd.
2/F,Building 38,Jiade industry park 888 tongyu Road,Pingshan District,Shenzhen China

SOURCE: Import-Export Bulletin Board (
Post an Offer to Sell
Home - Offers to Buy - Business Opportunities - Company Profiles

© 1996-2022 All rights reserved.