Yixing Hengyuan Ceramic Technology Co., Ltd.
Bear a heavy burden and cover a long distance,persist with unremitting efforts.
Add to Cart
There are three types of spiral blades for screw conveyors: solid spiral surface type, belt spiral surface type, and blade spiral surface type. The solid spiral surface is called the s-method, and its spiral pitch GX type is 0.8 times the blade diameter. The LS type spiral conveyor is suitable for conveying powdered and granular materials. Belt type helical surface, also known as D method, has a helical pitch equal to the diameter of the helical blades and is suitable for conveying powdered and small pieces of material. The blade type helical surface is rarely used and is mainly used for conveying materials with high viscosity and compressibility. During the conveying process, it completes mixing and other processes simultaneously, and its helical pitch is about 1.2 times the diameter of the helical blade.
| Naterial | Unit | A95% Alumina Ceramics | A97% Alumina Ceramics | A99% Alumina Ceramics | A99.7% Alumina Ceramics |
| Density | g/cm³ | 3.6 | 3.72 | 3.85 | 3.85 |
| Flexural Strength | Mpa | 290 | 300 | 350 | 350 |
| Compressive Strength | Mpa | 3300 | 3400 | 3600 | 3600 |
| Modulus of Elasticity | Gpa | 340 | 350 | 380 | 380 |
| Impact Resistance | MPam1/2 | 3.9 | 4 | 5 | 5 |
| Weibull Modulus | M | 10 | 10 | 11 | 11 |
| Vickers Hardulus | HV0.5 | 1800 | 1850 | 1900 | 1900 |
| Thermal Expansion Coefficient | 10-6K-1 | 5.0-8.3 | 5.0-8.3 | 5.4-8.3 | 5.4-8.3 |
| Thermal Conductivity | W/Mk | 23 | 24 | 27 | 27 |
| Thermal Shock Resistance | △T℃ | 250 | 250 | 270 | 270 |
| *Maximum Use Temperature | ℃ | 1600 | 1600 | 1650 | 1650 |
| Volume Resistivity at 20℃ | Ω | ≥1014 | ≥1014 | ≥1014 | ≥1014 |
| Dielectric Strength | KV/mm | 20 | 20 | 25 | 25 |
| Dielectric constant | εr | 10 | 10 | 10 | 10 |
