SST700 screw is a vacuum sintered nickel-based alloy coated screw, suitable for high wear materials.
The base material is high quality alloy steel and the coating is imported ni-based self-fluxing alloy powder.
Characteristics:
excellent wear resistance, excellent corrosion resistance, metallurgical combination of
alloy layer and matrix. SST700 series match with SBK5 barrel
Suitable for injection molding:
all kinds of colored materials with high wear and corrosion.
Application:
Laser accessories, optical fiber, communication, motor, thermoset injection molding
Chemical composition of SST700 and SBK5:
| Composition(Typical) | % |
| Boron | 3.6 |
| Carbon | 0.55 |
| Chromium | 16.5 |
| Copper | 2.1 |
| Iron | 3.0 |
| Molybdenum | 3.5 |
| Nickel | Rem. |
| Silicon | 4.8 |
Parameter of wear test
Load 250CN, revolution 205.6 rpm, pure sliding dry friction, weighing the wear loss per 10 hours (g); the sealing and grinding sample is the upper sample Cr12MoV quenching, tempering, HRC:60. 1,59.9, 59.6 (fixed sample at 60°C)
