氧化鋯
ZAF 25, ZAFZ 25
特徵：
| Colour | blue - grey |
| Crystal structure | α- Al₂0₃；trigonal monoclin./tetragon. ZrO₂ |
| Melting point | 1950°C |
| Absolute density | 4.30 g/cm³ |
| Hardness | 19,5 kN/mm² |
| Compact fracture force | 102N |
| ZAF 25 | ZAFZ 25 | |
|---|---|---|
| Type | 25% Fused Alumina Zirconia | 25% Fused Alumina Zirconia |
| Toughness | very high | extreme high |
| Bulk density | high | very high |
| Grain shape | augular | cubic |
TREIBACHER ALODUR® ZAF 25 and ZAFZ 25 is produced by melting alumina and zirconia in an electrical arc furnace followed by rapid cooling of the molten product. TREIBACHER ALODUR® ZAFZ 25 grits are special processed to achieve very compact and blocky grain shapes. Due to this special processing TREIBACHER ALODUR® ZAFZ 25 grits achieve a high lifetime especially under extreme steel-grinding conditions.
典型化學分析值% (Grit 24)：
| Al₂0₃ | ZrO₂+HfO₂ | TiO₂ | Total iron as Fe₂O₃ | SiO₂ | CaO+MgO |
|---|---|---|---|---|---|
| 75,00 | 24,00 | 0,12 | 0,25 | 0,30 | 0,19 |
用途：
The extreme high toughness of the material makes it suitable for all types of "high and extreme high pressure and hot cutting" steel grinding operations. Main applications are:
- hot-pressed wheels for conditioning steel billets and slabs
- hot cutting operations during the casting of steel bars
- large diameter cut off wheels
- high pressure rough grinding operations
- rail grinding operations (high force)
TREIBACHER ALODUR® ZAF 25 and ZAFZ 25 are also used for blasting media and in refractories to increase the mechanical strength due to the formation of subcritical micro cracks.
可供粒度：
TREIBACHER ALODURR ZAF 25 is produced in grits 4 to 46 and ZAFZ 25 in grits 4 to 36, sized in accordance with modified FEPA/ISO and ANSI sieve standards.
堆積密度 (g/cm³)：
| Grit | SCTSK | TSCTSK | Grit | SCTSK | TSCTSK |
|---|---|---|---|---|---|
| 4 | 2,12-2,30 | 2,31-2,50 | 16 | 2,05-2,26 | 2,29-2,41 |
| 6 | 2,10-2,25 | 2,29-2,45 | 20 | 2,01-2,24 | 2,27-2,40 |
| 8 | 2,10-2,27 | 2,28-2,44 | 24 | 1,99-2,23 | 2,25-2,36 |
| 10 | 2,20-2,38 | 2,40-2,53 | 30 | 1,98-2,22 | 2,23-2,34 |
| 12 | 2,16-2,35 | 2,37-2,49 | 36 | 1,96-2,20 | 2,21-2,32 |
| 14 | 2,10-2,31 | 2,33-2,45 | 46 | 1,92-2,12 | --- |
Determined using the current FEPA test method.
Packaging unit：
TREIBACHER ALODUR® ZAF 25 and ZAFZ 25 is available in 25kg paper bags or 1.000/500kg big bags.
ZK 40, ZZK 40
特徵：
| Colour | dark grey |
| Crystal structure | eutectic a-Al₂O₃ tetragonal ZrO₂ |
| Melting point | 1800°C |
| Absolute density | 4.63 g/cm³ |
| Hardness | 19 kN/mm² |
| Compact fracture force | 97N |
| ZK 40 | ZZK 40 | |
|---|---|---|
| Grain shape | angular | very blocky |
| Toughness | very high | extreme high |
TREIBACHER ALODUR® ZK 40 and ZZK 40, Eutectic Alumina Zirconia, is produced by melting alumina, zirconia and other additives in an electric arc furnace followed by rapid cooling of the molten product. The product is characterised by a microcrystalline and homogeneous crystal structure. This microcrystalline structure and the high content of tetragonal stabilized zirconia (t-ZrO2) create a very effective self-sharpening behaviour of the abrasive grains. TREIBACHER ALODUR® ZZK 40 is a modification of the eutectic alumina zirconia ZK 40 with compact and blocky grain shapes, manufactured by specific mechanical treatments.
典型化學分析值% (Grit 24)：
| Al₂0₃ | ZrO₂+HfO₂ | TiO₂ | Total iron as Fe₂O₃ | Si-, Mg-, Ca-, Na-, K- Oxide |
|---|---|---|---|---|
| 55,0 | 41,0 | 3,0 | 0,1 | 0,9 |
用途：
TREIBACHER ALODURR ZK 40 combines high toughness with excellent self sharpening properties and is therefore one of the best performing grain types available. Main applications are:
- cutting stainless steel and high alloyed steel types
- high pressure rough grinding and snagging
- snagging of alloyed steel castings
- rail grinding
- large diameter cut off wheels
TREIBACHER ALODUR® ZZK 40 is used for heavy duty cutting and snagging operations in resin bonded abrasives. It is characterised by a significantly extended life time and continued good cutting abilities.
可供粒度：
TREIBACHER ALODUR® ZK 40 is available in grits 12 to 220, sized in accordance with the current FEPA / ISO and ANSI sieve standards. TREIBACHER ALODUR® ZZK 40 is available in grits 10 to 60.
堆積密度 (g/cm³)：
| Grit | ZK 40 | ZZK 40 | Grit | ZK 40 | ZZK 40 |
|---|---|---|---|---|---|
| 10 | 2,05-2,25 | 2,31-2,50 | 54 | 1,85-1,95 | 1,95-2,15 |
| 12 | 2,05-2,25 | 2,29-2,45 | 60 | 1,85-1,95 | 1,95-2,15 |
| 14 | 2,05-2,27 | 2,25-2,45 | 70 | 1,85-1,95 | |
| 16 | 2,00-2,20 | 2,20-2,40 | 80 | 1,85-1,95 | |
| 20 | 2,00-2,20 | 2,20-2,40 | 90 | 1,80-1,90 | |
| 22 | 1,95-2,15 | 2,15-2,35 | 100 | 1,80-1,90 | |
| 24 | 1,90-2,10 | 2,10-2,30 | 120 | 1,80-1,90 | |
| 30 | 1,90-2,10 | 2,10-2,30 | 150 | 1,80-1,90 | |
| 36 | 1,90-2,10 | 2,10-2,30 | 180 | 1,80-1,90 | |
| 40 | 1,90-2,10 | 2,10-2,30 | 220 | 1,80-1,90 | |
| 46 | 1,90-2,10 | 2,10-2,30 |
Determined using the current FEPA test method.