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Высокотемпературный нагревательный стеклянный цилиндр лампы HM

Высокотемпературный нагревательный стеклянный цилиндр лампы HM

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Поставщик: Jinzhou Meihua Quartz Glass Co. Ltd.

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Характеристики

HM High Temperature Heating Glass Lamp Cylinder

Product Description

HM High Temperature Heating Glass Lamp Cylinder is made of silicon dioxide in special industrial technology glass, which is a very good base material.Quartz glass has a series of excellent physical and chemical properties.

The feature of the clear quartz glass tubes is as follows: high purity, strong transmission, strict size control, low OH content and so on. The deep processing would be done according to client's requirements, like neat cutting, fire polish, bending, sealing, polished and so on. OH content can be controlled less than 20ppm\\15ppm\\10ppm\\5ppm\\2ppm.

Divide into these series : clear quartz glass tube (OD :1.5mm to 300mm), filter UV quartz tube, colorful quartz glass tube, Milky white tube and so on.

Photo

Property:

1. Incredibly thermally shock resistant (can be taken from red heat and plunged into water without cracking)	4. Good chemical resistance
2. Low thermal coefficient of expansion (TCE) and high softening temperature	5. Excellent electrical insulator
3. Optical transmission properties from ultra violet to infra red	6. High radiation resistance

Parameters:

Property	Typical Values
Density	2.2x10³ kg/m3
Hardness	5.5 - 6.5 Mohs' Scale 570 KHN 100
Design Tensile Strength	4.8x10⁷ Pa (N/m2) (7000 psi)
Design Compressive Strength	Greater than 1.1 x l0⁹ Pa (160,000 psi)
Bulk Modulus	3.7x10¹⁰ Pa (5.3x10⁶ psi)
Rigidity Modulus	3.1x10¹⁰ Pa (4.5x10⁶ psi)
Young's Modulus	72GPa (10.5x10⁶ psi)
Poisson's Ratio	0.17
Coefficient of Thermal Expansion	5.5x10 -7 cm/cm·°C (20°C-320°C)
Thermal Conductivity	1.4 W/m·°C
Specific Heat	670 J/kg·°C
Softening Point	1683°C
Annealing Point	1215°C
Strain Point	1120 °C
Electrical Resistivity	7x10⁷ ohm cm (350°C)
Dielectric Properties	(20°C and 1 MHz)
Constant	3.75
Strength	5x10⁷ V/m
Loss Factor	Less than 4x10^-4
Dissipation Factor	Less than 1x10^-4
Index of Refraction	1.4585
Constringence (Nu)	67.56
Velocity of Sound-Shear Wave	3.75x10³ m/s
Velocity of Sound/Compression Wave	5.90X10³ m/s
Sonic Attenuation	Less than 11 db/m MHz
Permeability Constants(700°C)	(cm3 mm/cm2 sec cm of Hg)
Helium	210x10^-10
Hydrogen	21x10^-10
Deuterium	17x10^-10
Neon	9.5x10^-10