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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/
Ozone-free quartz tube
About 70% of UV with wavelength above 253.7nm can pass through ozone-free quartz, UV ray at this frequency is suitable for sterilization. Thus ozone-free quartz tube is adopted to produce sterilizers, which kill bacteria.
Table 1. Dimension Tolerance
| Diameter/mm | Thick/mm | Eccentricity | Ovality (out-of-roundness) |
Curvature (1220mm long) |
| 5.0±0.08 | 1.0±0.06 | 10% | 1.5% | 2.5% |
| 12.0±0.10 | 1.0±0.10 | 10% | 1.5% | 2.5% |
| 15.0±0.12 | 1.0±0.12 | 15% | 1.5% | 2.5% |
| 17.0±0.15 | 1.0±0.15 | 15% | 1.5% | 2.5% |
| 18.5±0.15 | 1.0±0.15 | 15% | 1.5% | 2.5% |
| 19.0±0.20 | 1.0±0.15 | 15% | 1.5% | 2.5% |
| 25.0±0.30 | 2.5±0.20 | 15% | 1.5% | 2.5% |
Table 2. Chemical Elements/ppm
| Al | Fe | K | Na | Li | Ca | Mg | Cu | Mn | Pb | B | Cr | -OH |
| 25 | 1.5 | 2.5 | 2.5 | 0.6 | 2.3 | 0.5 | 0.1 | 0.5 | 0.01 | 0.2 | 0.1 | <10 |
Table 3. Physical Properties
| Parameter | |
| Density 20℃ (g/cc) | 2.2 |
| Coefficient of expansion 25-300℃ (×10e-6)℃-1 | 0.56 |
| Softening point（℃） | 1630 |
| Annealing point（℃） | 1180 |
| Strain point(℃) | 1070 |
| Young's modulus(Pa) | 7.3×10e9 |
Table 4. Transmittance(1.0mm thick)
| nm | 185 | <220 | 230-280 | 550 | 590 | 780 |
| % | ≈0 | ≈0 | ≥85 | ≥90 | ≥92 | ≥92 |
Above data only for reference.