screw barrel for PET flake long fiber short fiber
Basic information
| Roughness of the surface | Ra0.4um |
| Linearity of the screw | ≤0.015mm |
| Linear axis limit | ≤0.02mm |
| Hardness after Hardening & Tempering | HB240-280 |
| Fragility of Nitration | ≤Two class |
Screw barrel photoes:
Production steps:
Custome Order--Product
Design(Customer
Drawing)—Production Flow Arrangement—Material Procurement—Hardening&Tempering—Drilling—Rough Turning—Rough
Thread Rolling(Alloy
Spray Welding)—Alignment—Fine Thread Rolling—Mixing—Alignment—High Frequency Treatment—Alignment—Polishing—Grinding—120
Hours Nitriding Treatment—Acid Piclking—Polishing—Chrome Plating—O.D.Grinding—Packaging&Shipping
Other screw barrel we provide:
Our packing:
