粉體行業在線展覽
AFS 40-45
46含量Chromite sand 鑄造面砂鉻礦砂AFS 40-45
46%鉻含量的鉻礦砂 AFS 40-45 不同于冶金級別的鉻鐵礦砂,它是按照消失模鑄造、熔模鑄造、覆膜砂鑄造、自硬砂鑄造等鑄造工藝的要求來確定其粒度分布和細度的。美國鑄造協會AFS( American Foundry Society)和中國行業標準都對鉻礦砂的細度做了規定。
The Chromite Sand AFS 40-45 with 46% chromium content is different from metallurgical grade chromium iron ore sand. It is determined based on the requirements of casting processes such as lost foam casting, investment casting, coated sand casting, and self hardening sand casting to determine its particle size distribution and fineness. The American Foundry Society (AFS) and Chinese industry standards both specify the fineness of chromite sand.
46含量Chromite sand 鑄造面砂鉻礦砂AFS 40-45的性能特點
1. 高熔點,燒結溫度高
2. 優異的熱穩定性
3. 高密度,比重大?
4. 中等莫氏硬度5.5
5. 熱傳導能力強
6. 熱膨脹系數低
1. High melting point, high sintering temperature
2. Excellent thermal stability
3. High density, high density -
4. Medium Mohs hardness 5.5
5. Strong thermal conductivity
6. Low coefficient of thermal expansion
46含量Chromite sand 鑄造面砂鉻礦砂AFS 40-45的技術參數:
1. 化學成分
Cr2O3 (三氧化二鉻) | ≥ 46% |
SiO2(二氧化硅) | ≤ 1.0% |
FeO(氧化鐵) | ≤ 26.5% |
Cr:Fe (鉻鐵比) | ≥1.5:1 |
MgO(氧化鎂) | ≤ 10% |
CaO(氧化鈣) | ≤ 0.3% |
Al2O3(三氧化二鋁) | ≤ 15.5% |
P(磷) | ≤30 ppm |
S(硫) | ≤30 ppm |
Cr/Fe(鉻鐵比) | ≥ 1.55:1 |
2.物理性能:
莫氏硬度(Mohs Hardness) | 5.5-6 |
熔點(Melting Point) | 2180 ℃ |
燒結溫度(Sintering Point) | >1800℃ |
比重(Specific Gravity) | 4.0-4.8 g/cm3 |
堆積密度 (Bulk Density LPD) | 2.5-3 g/cm3 |
顏色(Color) | 黑色(Black) |
PH值(PH Value) | 7-9 |
導熱系數(Thermal conductivity) | 0.63 W/M·K |
熱膨脹率(Thermal Expansion Rate)(1000℃) | 0.6% |
酸耗值(Acid Demand Value ADV) | ≤ 5ML |
渾濁度(turbidity)(JTU) | ≤ 110 |
含泥量(Soil content) | ≤ 0.1% |
含水量(Moisture) | ≤ 0.1% |
46含量Chromite sand 鑄造面砂鉻礦砂AFS 40-45的應用范圍:
1. 鑄造行業:各種鑄造工藝的面砂和型砂。
2. 冶金耐火行業:鉻質引流砂的原材料。
3. 著色劑行業:陶瓷和玻璃產品的綠色/棕色/茶色顏料。
4. 耐磨行業:剎車產品的耐磨填料。
46含量Chromite sand 鑄造面砂鉻礦砂AFS 40-45的粒度分布如下:
+30mesh(600um) | 4.8% |
+40mesh(425um) | 21.6% |
+50mesh(300um) | 45% |
+70mesh(212um) | 26.2% |
+100mesh(150um) | 2.3% |
AFS細度值 | 40.19 |
鉻礦砂Chromite sand的其他型號:
AFS細度 | 目數 | 顆粒尺寸 |
AFS25-30 | 20-40# | 0.45-0.85mm |
AFS30-35 | 20-50# | 0.3-0.85mm |
AFS30-40 | 20-60# | 0.25-0.85mm |
AFS35-40 | 30-70# | 0.2-0.6mm |
AFS40-45 | 40-70# | 0.2-0.4mm |
AFS45-50/AFS45-55 | 50-100# | 0.15-0.3mm |
AFS60-65 | 70-140# | 0.1-0.2mm |
/ | 200#-0 | 0-75um |
/ | 325#-0 | 0-45um |