Cangzhou Boyang Pipeline Equipment Manufacture Co., Ltd.
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  • Contact Person : Ms. Fan Tracy
  • Company Name : Cangzhou Boyang Pipeline Equipment Manufacture Co., Ltd.
  • Tel : 86-153-83790332
  • Fax : 86-317-6302738
  • Address : Hebei,Cangzhou,Longtan industry ,Yanshan coutry
  • Country/Region : China
  • Zip : 061300

high temperature Ceramic Furnace Support Tubes

high temperature Ceramic Furnace Support Tubes
Product Detailed
Related Categories:Ceramics
We mainly produce alumina tubes, rods and various industrial ceramic parts, which are mainly used in thermalcouple temperature,

Ceramic Supporting Rollers for Glass Tempering Furnaces

 

In glass tempering furnaces the glass is transported on rollers through the furnace. Product is run directly on the rollers, i.e. without supports.

The tempering time can be regulated via the rotational speed of the rollers as well as by applying different heating systems.

 

All large sized glass plates are subject to this secondary thermal treatment because of new regulations. (single pane safety glass)

 

Reasons for Tempering Glass

The aim of this process is to cause prestressing the glass through heat, 

so that there are no sharp splinters if the glass breaks. Like safety glass, the pane must break into many harmless particles.

 

Properties of Ceramic Rollers for Glass Tempering

 

Because of the sensitivity of the glass surface, the ceramic rollers used must be very smooth and free of the smallest undulation. The bending and the concentricity are very important factors, too.

 

Furthermore, the ceramic material must have good thermal shock resistance properties in order to withstand changes of temperature occurring in the process.

 

Materials for Glass Tempering Furnace Rollers

The material used for these rollers is our Fused Silica/quartz. In use today are solid as well as quartz or fused silica rollers which can be supplied with mounted metal end caps.

If you are interested,please contact us for more details and attractive price.

 Main performance index    
Serial numberperformance indexMeasuring unitHigh purity aluminaAlumina

High

alumina

1Al2O3%99.799.385
2SiO2%less than0.1
3Densityg/cm33.953.883.2
4Wter absorption%00.010.2
5Cld compressive strengthMPa450350200
620 degree Celsius leak ratesTorr/L.secless than10-11less than10-11less than10-11
7Twisting in high temperaturemm

1700 degree

Celsius 0.2

allowance

1600 degree

Celsius 0.2

 allowance

1400 degree

Celsius 0.2

allowance

8Bonding in high temperature 

1700 degree

 Celsius

non-caked

1600 degree

Celsius

non-caked

1400 degree

Celsius

non-caked

920—1000 degree Celsius coefficient of

mm.10-6/degree

Celsius.m

8.68.28.2
thermal expansion
10Thermal conductivityW/m.k252525
11Electric insulation strengthKV/mm202015
1220 degree Celsius direct currentOhm/cm101410141014
insulating resistance
13High-temperature

1000 degree

Celsius MΩ

≥0.08≥0.08≥0.08
insulation resistance

1300 degree

Celsius MΩ

≥0.02≥0.02≥0.02
14Thermal shock resistance 

1550 degree

 Celsius 6

times not

racked

1550 degree

Celsius 6

 times not

cracked

1300 degree

Celsius 3

times not

cracked

15Maximum service temperaturedegree Celsius19001800 

We are an ISO certified Factory, specializing in production of 

engineering ceramic, industrial ceramics and electric ceramic products. 

Main material include:

Corundum: 95% alumina, 99% alumina, 99.7% alumina

Alumina: 85% alumina

Mullite: 75% alumina

Chemical Ceramic: 40% alumina

Magnesia: 98% magnesia, 99.5% magnesia

Fused silica/Quartz glass heating elements

Our products include:

 high temperature roller tube for furnace and kiln ,

 thermocouple protection tube,

 muti-bore insulation tube, 

 ceramic roller & rod, 

 ceramic crucible and boat,

 wear resistant ceramic tiles and balls.

Custom products are available from us.

With more than 10 years experiences, our ceramic products enjoy a high 

reputation for the high quality, stable performance, longer working life ,both at home and abroad. 

If you are interested,please contact us for more details and attractive price.

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high temperature Ceramic Furnace Support Tubes



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