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Accessories-GERO　高溫管型爐零配件

Accessories-GERO

高溫管型爐零配件

Accessories

廠牌：GERO/Germany
供應商：建成科學儀器股份有限公司
聯絡電話：02-29103818
定價：與我們聯絡

快速詢價

5391

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產品規格
Notes

Work Tube Materials

	The choice of the material for the work tube depends on the temperature of the respective application and on the process parameters, e.g. on pressure, process gas, heating rates etc.
	This means that tight ceramic work tubes, for instance, can only be used up to 1400 ºC under vacuum. If heat treatments under vacuum are desired at higher temperatures, the use of our type HTK chamber furnaces should be considered.
	The gas atmosphere, too, plays an important role when choosing the work tube. In tubes containing SiO₂, heat treatments under hydrogen can only be performed up to 1000 ºC. For higher temperatures, only SiC tubes without SiO₂ or a tight high-purity Al₂O₃ tube may be used.
	Process parameters, like heating and cooling speeds, also have a direct effect on the choice of a suitable work tube. For high heating and cooling rates, only materials with a very good or excellent thermal shock resistance may be chosen, i.e. they must have low thermal expansion coefficients and good thermal conduction.

up to 1100 ºC

quartz glass or fused quartz with an excellent thermal shock resistance

up to 1250 ºC

	powder-metallurgic tight APM (CrFeAl alloy)
	good heat stability, low carbonizing rate
	excellent thermal shock resistance

up to 1300 ºC

	porous aluminium silicate with 70-80 weight-% Al₂O₃
	good to very good thermal shock resistance
	tight Si-SiC with 90 weight-% SiC

up to 1400 ºC

	tight aluminium silicate with 60-76 weight-% Al₂O₃
	good to very good thermal shock resistance

up to 1600 ºC

	porous R-SiC with 99 weight-% SiC
	very good thermal shock resistance

up to 1700 ºC

	porous high-purity Al₂O₃ (99.5 weight-%)
	good thermal shock resistance

up to 1800 ºC

	tight high-purity Al₂O₃ (99.7 weight-%)
	good thermal shock resistance

Special materials (according to client requirements):

	Si₃N₄
	AIN
	SSiC/NSiC/GPSN

For the optimization of the temperature profile in applications with vacuum and process gas equipment, the tube can be sealed with radiation protection packaging.

Quick-action locks of the flanges for operating under vacuum and process gas.

Fiber plugs in various dimensions and materials for a maximum temperature of 1800 °C.

For simple applications under process gas, an atmosphere can be created by means of a ceramic fiber plug with integrated ceramic tube which is fixed by means of an adhesive.

Vacuum pumps or complete pump systems, vacuum connections and the appropriate measuring technology are also included in our product range.

Further Accessories

Ceramic vacuum-formed fibre insulation stoppers

	subframe with integrated power device, gas supply, operation panel, etc.
	laboratory bench (electrically adjustable)
	ceramic, glass-like or metallic support for samples, calibration units for thermo couples, etc.
	moisture sensors, dew point sensors, partial pressure sensors
	movable furnaces with cooling devices
	numerous further accessories available on request

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