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Help CenterHigh Toughness Industrial Zirconia Ceramic Welding Pins
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High Toughness Industrial Zirconia Ceramic Welding Pins
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Typically, locating pins are used for controlled, fine tolerance positioning of a work piece. For example, a pallet that is moved along one axis, where the drive mechanism is not accurate and stable enough to place it in a position sufficiently accurate to execute a particular process, the use of locating pins may be the best solution. Usually two locating pins are enough to properly locate the work piece on one plane.
UNIPRETEC now offers a full line of standard and custom-made ceramic locating and welding pins. Advanced ceramics, which ensure a perfect fit for sheet metal and nuts and are subjected to temperatures of up to 600 °c, have long replaced metal in the production of welding pins. Metal cannot compete with ceramics with regard to insulating properties, resistance to temperature change, and minimal wear and tear due to the high degree of hardness and durability. Yet another advantage of ceramics is their smooth polished surface, which prevents welding spatter from adhering. |
Unit |
95% Al2O3 |
99% Al2O3 |
ZrO2 |
GP-Si3N4 |
|
Color |
- |
white |
ivory |
white |
gray |
Density |
g/cm³ |
3.65 |
3.88 |
5.95 |
3.22 |
Water Absorption |
% |
0 |
0 |
0 |
0 |
Young's Modulus |
Gpa |
280 |
350 |
205 |
295 |
Vickers Hardness |
Gpa |
14 |
20 |
12 |
18-20 |
Flexural Strength ( at R.T. ) |
Mpa |
280 |
300 |
900 |
650 |
Compressive Strength ( at R.T. ) |
Mpa |
2000 |
2500 |
2200 |
2200 |
Thermal Conductivity ( at R.T. ) |
W/(m.K) |
18-25 |
30 |
2.2 |
25 |
Thermal Shock Resistance |
ΔT(°C) |
220 |
180-200 |
280-350 |
450-650 |
Max. Working Temperature ( at R.T. ) |
°C |
1500 |
1700 |
850 |
1200 |
Volume Resistivity ( at R.T. ) |
Ω.cm |
>10^15 |
>10^14 |
>10^12 |
>10^14 |
Dielectric Constant (1 MHz at R.T. ) |
- |
9.50 |
9.80 |
26 |
8.20 |
Dielectric Strength |
kV/mm |
16 |
22 |
- |
16 |
|
As a professional company in advanced ceramic industries, UNIPRETEC is manufacturing and supplying high quality and high precision ceramic components for clients from worldwide. Our ceramic products are widely used in various fields of automotive, metallurgy, machinery, electronic & electrical, food, chemical, medical..... With experienced engineers and talented workers, we are able to evaluate projects and drawings properly, make valuable suggestion, supply satisfying products. Our materials including:
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Q1: What are advanced ceramics? >>> Advanced ceramics - also referred to as engineering, structural or technical ceramics - have been processed to be very pure and, in general, have superior properties to unrefined ceramics. Many are man-made, i.e. they do not occur naturally, e.g. silicon nitride, and their properties can be enhanced to produce very high strength at high temperatures, good corrosion resistance, etc. |
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