Graphite thermal gasket

Short Description:

Graphite thermal gasket thickness:0.5-40mm

Graphite thermal gasket width:5-40mm

Work temperature:-40 to 120 degrees

Coefficient of thermal conductivity:5~10W/m-k


Product Detail

Borosilicate glass

Aluminosilicate glass

Quartz glass

Ceramic glass

Sapphire glass

Cobalt Blue Glass

Product Tags

Graphite thermal conductive pad is made of graphite heat dissipation film as thermal conductive substrate, high rebound foam core as compression rebound carrier, through special wrapping and coating process.
Graphite thermal gasket because of its graphite heat dissipation film itself of high thermal conductivity, and has excellent thermal diffusion ability, can quickly heat source devices (such as chips, etc.) generated by the heat transfer through the graphite heat dissipation film surface to the heat dissipation body (such as metal shell inner wall, etc.), so as to achieve excellent heat conduction. Middle high rebound foam, soft stick, compression rebound, shock absorption and other properties.
Advantages:
Graphite is used as heat conduction base material, high thermal conductivity, high heat transfer and heat dissipation efficiency
High rebound foam gives graphite does not have the softness and compressibility, can buffer shock absorption
Light weight, promote the lightweight machine
Can fill very large thermal interface gap;
Can be customized size specifications, shape;
Typical applications:
Handheld electronic devices
UAV flight control module, battery, etc
LCD TV, monitor
Medical electronic equipment and instruments
Other applications with large gaps and difficult heat dissipation


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  • *Borosilicate glass

    Borosilicate Glass for circular sight glasses or tubular sight glasses
    Borosilicate glass is a kind of glass with silica and boron trioxide as the main glass-forming element. Borosilicate glasses become famous for having very low coefficients of thermal expansion, making them more resistant to thermal shock than soda-lime glass. borosilicate glass is fit to be used in sight glass lens,
    Borosilicate glass is ultra and clear glass with good thermal and chemical properties and outstanding transparent
    Parameters
    Dimensions(mm): 1200×600 ,1150×850 ,1150×1700.(other size upon request)
    Available thickness(mm): 1mm-25mm,we also can offer it if you want more thickness.
    Density (g/㎝3 ) (at 25℃): 2.23±0.02
    Co-efficient of expansion(α)(20-300℃): 3.3±0.1×10-6
    Softening point(℃): 820±10
    Identical temperature difference(K): 100 >300(Strengthening type)
    Maximum working temperature(℃): ≥450
    Refractive(nd ) : 1.47384
    Light transmission: 92%(thickness≤4mm;91%(thickness≥5mm)
    Application
    Circular sight glass lens
    Tubular borosilicate glass
    Appliance glass such as furnace, microwave, gas stove etc.
    Industry Glass such as sight glass, linings, etc.
    Lighting equipment (protective glass for high-power spotlights and other lamps)
    Photovoltaic module
    Optical filters
    Primary material for fully tempered glass
    Main properties
    High temperature stability
    Good surface quality
    Outstanding transparency in the visible, UV and IR ranges
    Can be tempered
    High chemical resistance
    Environmental engineering and chemical engineering (lining layer of repellence, autoclave of chemical reaction and safety spectacles);
    Our circular sight glass is required in all areas where the visual inspection of processes in vessels has to be ensured under pressure, at high temperatures or on exposure to chemicals. These sight glasses is made mainly from borosilicate glass, we also produce sight glass lens with alumino-silicate glass or quartz glass or sapphire glass

    *Aluminosilicate glass

    Aluminosilicate glass for boiler gauge glass
    Alumino-silicate glass is mainly composed of Si-Ca-Al-Mg and other alkali metal oxides through a scientific ratio combination, in which the content of K2O+Na2O ≤0.3%, belongs to the non-alkali aluminum silicate glass system, after high temperature tempering treatment with high temperature resistance, high pressure resistance, acid and alkali resistance and other excellent physical and chemical properties, is a variety of high pressure glass window excellent material.It is mainly used in power plant, petrochemical, nuclear power plant, deep-sea exploration equipment and other kinds of high temperature and high pressure steam package on the high pressure water level gauge glass window.
    Features
    Color: colorless or slightly yellow
    Shape: circular, rectangular
    Density: 2.62–2.67 g/cm3
    Transmissivity: 91.8%
    Refractive index: 1.5325 (yellow)
    Shock temperature: ≤ 370 °C
    Softening temperature: ≥ 920 °C
    Bending strength: 240–300 MPa
    Max working temperature: 550 °C
    Resistant pressure:1Mpa-32.0Mpa
    Size
    round sight glass:diameter:8mm-300mm
    Rectangle sight glass:8mm*8mm-300mm*300mm
    Linear gauge level glass:Max length 400mm
    Thickness:2mm-40mm

    *Quartz glass

    Quartz glass for round sight gauge glass or tubular sight gauge glass
    Normally,quartz glass is fused quartz is the widely usage in industry and home appliances.it is a glass consistant of almost pure silica in amorphous form,it’s purity up to 99.9% according to requirement.
    Advantages
    Softening point is 1730℃,long time work temperature 1100℃,short time work temperature 1400℃
    Shock thermal:taking out the glass from 1100℃ furnace into 20℃ water,no breakage three times.
    The visible light transmittance is more than 93%.
    Corrosion resistant:quartz glass can work in the intense acid and alkaline environment
    Synthetic Quartz Silica and Infrared Optical Quartz both used as the optical glass.

    Parameters:
    Property Typical Values
    Density 2.2×103 kg/m3
    Hardness 5.5 – 6.5 Mohs’ Scale 570 KHN 100
    Design Tensile Strength 4.8×107 Pa (N/m2) (7000 psi)
    Design Compressive Strength Greater than 1.1 x l09 Pa (160,000 psi)
    Bulk Modulus 3.7×1010 Pa (5.3×106 psi)
    Rigidity Modulus 3.1×1010 Pa (4.5×106 psi)
    Young’s Modulus 72GPa (10.5×106 psi)
    Poisson’s Ratio 0.17
    Coefficient of Thermal Expansion 5.5×10 -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 7×107 ohm cm (350°C)
    Dielectric Properties (20°C and 1 MHz)
    Constant 3.75
    Sonic Attenuation Less than 11 db/m MHz
    Permeability Constants(700°C) (cm3 mm/cm2 sec cm of Hg)
    Helium 210×10-10
    Hydrogen 21×10-10
    Deuterium 17×10-10
    Strength 5×107 V/m
    Loss Factor Less than 4×10-4
    Dissipation Factor Less than 1×10-4
    Index of Refraction 1.4585
    Constringence (Nu) 67.56
    Velocity of Sound-Shear Wave 3.75×103 m/s
    Velocity of Sound/Compression Wave 5.90X103 m/s
    Neon 9.5×10-10
    Application:
    Circular sight glass
    Tubular sight glass

    *Ceramic glass

    Ceramic Glass for panel of boiler and fireplace and electric heater

    Ceramic Glass has characters: heat resistant, shock temperature resistant, strengthen, hardness, acid-resistant, alkalinity-resistant, low-expansion. transparent ceramic glass, black ceramic glass, bronze ceramic glass, salient point ceramic glass. milk white ceramic glass.

    Item Parameter
    Bending Strength 180 – 220 MPa
    Coefficient of Thermal Expansion(-50-600℃) ±8×10-7/℃
    Softening Temperature ≥ 800℃
    Work Temperature ≥ 800℃, ≤1000℃
    Shock Temperature ≥ 700℃
    Product Density 2.62 – 2.67 g / cm3
    Transmittance
    Thickness 4mm,5mm
    Size 200*250mm,300*400mm,400*500mm,400*600mm,400*780mm
    Density 2.5±0.1g/cm2
    Process Grind edge, safety corner, bend
    Water resistant ISO719/DIN12111 HGB1
    Acid resistant ISO1776/DIN12116 3
    Alkalinity resistant IS0695/DIN52322 A2

     

    Application:

    Panel of Boiler and Fireplace, Wave Soldering, Oven, Panel of Electric Heater, Protective Panel of Spotlight, Infrared Drying Equipment, Ultraviolet Protection Equipment, Barbecue Plate, Laboratory and High Temperature Welding Mask, Safety Glass.

     

    *Sapphire glass

    Sapphire glass for observation window or screen protector
    Sapphire glass is now gradually used in pressure observation window, dangerous situation monitoring instrument, deep-water pressure environment instrument and oilfield, coal mine and other occasions.
    Our sapphire glass products can be coating treatment, screen printing treatment or special heat treatment according to customer requirements, to adapt to customer’s special needs.
    Sapphire window is suitable for ultra high pressure environment.
    Compared with tempered glass and other pressure-resistant glass products, sapphire can be thinner under the same pressure environment, effectively reducing the volume of the instrument.
    Generally, sapphire can withstand 10MPa of pressure per 5mm thickness.Of course, specific application is still affected by window diameter, use temperature, flange installation.
    Our products are used by many petroleum instrument manufacturers in the oil exploitation, drilling industry, product quality is highly recognized.
    Shape molding: CNC or laser.
    Product thickness range: thickness 0.2-100mm.
    Product finish after polishing: 80/50, 60/40, 40/20 (US army standard).
    Surface parallelism: less than 20 arc seconds.

    Sapphire tube is generally used for high temperature, pressure, corrosion level observation.

    Cobalt Blue Glass

    Cobalt Blue Glass for observing flame
    Cobalt blue glass is used in steel work and cement plant observation scenarios where IR protection is not required, but observation of bright furnaces requires blue eyewear to be able to see into the furnace better.
    Cobalt blue glass is NOT a good substitute for green IR glass. Cobalt blue lenses do not protect the eyes from IR radiation like the green IR does, but cobalt blue lenses are not designed for that. Furnace observation cobalt blue glass is designed with the furnace observer in mind, and it allows those who are observing hot furnaces without IR radiation to see into the furnace so they can reduce eye fatigue and increase their vision of the items in the furnace.

    The spectrum of cobalt elements makes it incapable of absorbing blue light (i.e., reflecting or passing through blue light, while completely absorbing yellow light with different wavelengths of blue light). Blue cobalt glass filters yellow light because of the presence of cobalt ions.
    In observing the flame reaction of potassium needs through cobalt blue glass, because the potassium compounds are not pure, often mixed with some impurities, such as sodium (not easy separation), in the flame reaction, due to the flame yellow sodium, interfere with the flame reaction of potassium (purple), so you have to take yellow light filter, by the light of the principle of complementary color, yellow and blue are complementary colors. Using blue cobalt glass to filter out the yellow light, the potassium’s flame-color, purple, is clearly visible.

    Application:
    Steel plant and cement plant for observing the flame color.
    Round or rectangle cobalt blue glass be installed in the observation window.
    Cobalt blue glasses.

    Size
    50mm*50mm; 50mm*100mm; 50mm*107mm,other size can be customized
    Thikckness:2.5-3mm
    Cobalt light blue glass be used in laboratory.
    Cobalt dark blue glass be used in cement plant and steel works.
    Cobalt blue glass component:SiO2:75.01%; B2O3:0.27%; CaO:4.18%; Na2O:15.94%; K2O:1.19%;
    CoO:0.51%; Fe2O3:2.9%