電熔鋯剛玉是一種高檔磨料和電熔剛玉鋯固結磨料材料，電熔鋯剛玉可以應用高檔耐火材料。電熔鋯剛玉具有高強度、高韌性、耐高溫的特點，電熔鋯剛玉可製造磨料和高性能重型砂輪，也可用於鋼鐵工業、連鑄連軋、水口、流道、電熔剛玉鋯可用於鋼、鑄鐵、耐熱鋼、鈦、鎳合金、鋁合金、鎢鈦合金等研磨。電熔剛玉鋯有多種名稱，如氧化鋯、氧化鋯鋁（ZA）、電熔剛玉ZA 25、鋯剛玉等。
化學性質 | |||||
產品系列 | 氧化鋁3% | 氧化鋯% | 二氧化鈦% | 氧化鐵% | 二氧化矽% |
ZA25 | 68%-72% | 24%-30% | 1.5%最大 | 0.5%以下 | 1.0%最大 |
ZA40 | 55%-57% | 35%-44% | 1.5%最大 | 0.5%以下 | 1.0%最大 |
物理特性 | |
晶型 | 單斜、四方晶系 |
晶體尺寸 | ≤30μm |
真密度 | 4.20克/立方厘米 |
堆積密度 | 2.18克/立方厘米 |
莫氏硬度 | 9.0 |
結硬度 | 1450-2000公斤/平方厘米 |
顏色 | 灰色的 |
熔點 | 1900 ℃ |
最高使用溫度 | 1600℃ |
與酸、鹼反應 | 不 |
與碳的反應 | 1650 ℃起形成碳化物 |
比心容量(cal/g. ℃ ) | 0.2205(50-500 ℃ ) |
導熱率 | 0.2718卡/公分2.秒℃ |
線性膨脹率（X10-6） | 682(100-700 ℃ ) |
可用尺寸 |
餵食 | F4 F5 F6 F7 F8 F10 F12 F14 F16 F20 F22 F24 F30 F36 F46 F54 F60 F70 F80 F90 F100 F120 F150 F180 F220 |
他 | HE#4 HE#5 HE#6 HE#7 HE#8 HE#10 HE#12 HE#14 HE#16 HE#20 HE#24 HE#30 HE#36 HE#46 HE#54 HE#60 HE# 70 HE#80 HE#90 HE#100 HE#120 HE#150 HE#180 HE#220 | |
0-0.5MM 0.5-1MM 1-1.5MM 0-1MM 1-2MM 2-3MM 1-3MM 3-5MM | ||
1）硬度高。
2）高壓。
3）良好的自銳性。
4）良好的熱穩定性。
5) 耐高溫。
6) 防腐蝕。
7）化學性質穩定。
1.可製作高性能重型砂輪，在研磨鋼、鑄鐵、耐熱鋼、鈦合金、鋁合金、鎢合金等方面均取得了良好的效果。廣泛應用於連鑄連軋、流道、玻璃等鋼鐵業耐火材料生產。
2.鋯剛玉是一種高強度、高韌性、高自銳性的優質耐磨耐火材料。最常見的應用是高壓砂輪和在非常堅硬的表面上進行壓力噴砂。
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