- DIVISION Extrusion Technologies
- DIVISION Injection Molding Technologies
- DIVISION Recycling Technologies
DIVISION Screws and Barrels
- Production of screws and barrels
- Renovation of screws and barrels
- Screw pyrolytic cleaning
- DIVISION Thermal insulation covers
- DIVISION Peripherals, Accessories and Spare Parts
- DIVISION Wheel Clamps
- DIVISION Plastics production
- DIVISION Training and technical support
- DIVISION Cooperation
- Irrigation Agro System IRRISYS
- Used technologies
- IN STOCK
|PRODUCTION OF NITRIDED SCREWS|
Field of application:
Extrusion of plastic profiles, plastic injection, rubber production, food production etc.
Suitable for undemanding processes where requirements for wear resistence are higher, ie for manufacturing common kinds of plastics without additives, mainly abrasive additives.
Unsuitable for processes where materials filled with an abrasive element such as more than 15% glass fiber are processed. Then unsuitable for proccesed recyclated materials. Unsuitable for polycarbonate!
|Surface modification:||Gas nitridation (more efficient nitriding method than ionic or powder nitration)|
|Used materials:||We strictly use certified nitriding steel from the most known European suppliers. Nitriding steel 1.8550 (34CrAlNi7) and others.|
|Production range:||From Ø 12 to Ø 750 mm x to lenght 6000 mm (in one part).|
|Parametres of nitrided layer||Thickness from 0,5 to 0,7 mm, hardness ~ 1000 HV.|
|Production time:||Within 4 weeks depending on the complexity of the part|
The principle of nitriding process is based on penetration of atomic nitrogen into the peripheral steel layer with the tempterature of 550°C and it causes increasing the peripheral toughness by formation of nitrides and by depositing the nitrided atom in areas between grids which causes grid tension. The peripheral zone consisting of a diffuse zone and an interface layer has high toughness, good wear resistence, increased fatigue limit and increased corrosion resistence.