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About us
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Lianyungang Haisheng Quartz Tech Co. Ltd stems from the former state-owned Donghai Quartz Glass Product Factory. Haisheng Quartz(abbr. Lianyungang Haisheng Quartz Tech Co.ltd) is a member of Quartz Industry Associate, and it covers R&D, production and marketing. At present there are 6 production line. Annually 700t quartz tube(/fused silica tube) and quartz silica plank(quartz plate, quartz wafer, quartz substrate) are being produced.
A novel technique about vertically producing quartz plate with fused silica was invented by Haisheng Quartz Co., and the intellectual property right is held.
Main products include quartz plate(/quartz plank) 2～20mm thick, quartz tube(/fused silica tube) diameter 2.5～100mm, quartz rod, UV tube, none-ozone tube, low OH tube, opaque tube, etc.
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Certificate
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ISO9002 was achieved in 2001, and ISO9001 in 2005.
Projects conducted include "Low -OH high quality quartz tube", "High intensity gas discharge UV-filtered low OH tube", “Quartz sand and powder purification”, “Quartz plate/sheet/pane for optics and semiconductor industry”.
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Duty
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Sustainable development and social responsibility have never been neglected. Advanced equipments have been adopted to treat sewage disposal, our pollution control is certificated by the local government.
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Creed
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Maneger: Mr Zhang
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- Contact Us
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Address: Haisheng Rd No.1, Fangshan Industry District, Donghai Xian, Lianyungang Shi, Jiangsu Province Phone: 13179580826
17305189758E-mail: haishengkj@163.com Fax: 0518-87563768 Alibaba: http://haisheng
sy.1688.com/
Ultraviolet(UV) blocking quartz tube
UV blocking quartz tube can effectively prevent human body from being radiated by UV ray, meantime visible light is permitted through as much as possible. UV blocking quartz tube is being adopted in various environment friendly illumination products.
Table 1. Dimension Tolerance
| Diameter/mm | Diameter tolerance | Thick | Eccentricity | Ovality (out-of-roundness) |
Curvature (1220mm long) |
| ≤6mm | ±2.0% | ±10% | 12% | 2.0% | 2.5mm |
| 6.00-15.00mm | ±1.25% | ±8% | 10% | 1.5% | 2.5mm |
| 15.00-20.00mm | ±1.25% | ±10% | 15% | 1.5% | 2.5mm |
| 20.00-25.00mm | ±1.25% | ±10% | 15% | 1.5% | 3.0mm |
| 25.00-30.00mm | ±1.35% | ±12% | 15% | 1.5% | 3.0mm |
Table 2. Chemical Elements/ppm
| Cr | Ge | Fe | Mg | Ti | Ca | Al | Na | Li | K | -OH |
| < 0.5 | < 0.4 | 1.5 | 0.5 | 2.5 | 2.3 | 2.5 | 2.5 | 0.36 | 2.5 | 1-50 |
Table 3. Transmittance(1.0mm thick)
| nm | ≤220 | 230-280 | 290-330 | 315 | 350 | 380 | 590 | 780 |
| % | 0 | <19 | 0 | 15 | 88 | 92 | 93 | 93 |
Table 4. Physical Properties
| Parameter | |
| Density 20℃ (g/cc) | 2.2 |
| Thermal Expansion(cm/cm℃) | 5.5×10e-7 |
| Softening Point（℃） | 1620 |
| Annealing Point（℃） | 1160 |
| Deformation Point(℃) | 1060 |
| Young's Modulus(Pa) | 7.3×10e9 |
Above data only for reference.