Dedicated Stainless Steel Sleeve Of Silicon Steel Coil
GW precision has our own professional processing of the design, develop and manufacture, also have proven machining technique.
Our company has a well-developed management system. Meanwhile, our employees are highly qualified and skilled.
- GW Precision
- China，Luoyang
- Contractual Stipulation
- Anual Capacity of Steel Spool is 4000 pieces
- Information
Dedicated Stainless Steel Sleeve Of Silicon Steel Coil
| Dedicated Stainless Steel Sleeve material | specification |
| 304 stainless steel sleeve | 355*305*1200 |
Application scenarios of stainless steel sleeves for Silicon steel coil
(Suitable for high-precision aluminum foil rolling production line)
1. Core functions
Precision support: As a lining for the work roll/intermediate roll, it ensures that the radial runout of the roll system is ≤ 0.003mm (affecting the thickness tolerance of the aluminum foil ± 0.001mm)
Anti adhesive aluminum: prevents aluminum from adhering (surface roughness needs to be controlled with Ra ≤ 0.05 μ m)
Dynamic balance: Maintain vibration velocity ≤ 1.2mm/s at rolling speed of 15-30m/s (ISO 10816-3 standard)
2. Typical working conditions
Mechanical load:
Contact stress 400-800MPa (Hertz contact theory)
Impact caused by frequent roller changes (acceleration 8-12g)
Environmental challenges:
Rolling oil (low viscosity mineral oil, containing antioxidants)
Aluminum powder abrasive wear (hardness HV100-150)
Temperature fluctuation (working temperature 60-120 ℃)
Material selection and optimization of stainless steel sleeve for silicon steel coil
1. Characteristics of 304 stainless steel
Parameter index requirements
Composition Cr 18-20%, Ni 8-10.5%
Hardness HB ≤ 187 (solid solution state)
Corrosion resistance passed the 5% CuSO ? · H ? SO ? drop test
2. Material reinforcement plan
Surface hardening:
Low temperature ion nitriding (420 ℃ × 24h, surface hardness HV800-1000)
Electrolytic polishing (removing the chromium deficient areas at the surface grain boundaries, increasing corrosion resistance by three times)
Anti adhesive aluminum treatment:
Laser texturing (micro pit diameter 20-50 μ m, depth 5-10 μ m)
PTFE impregnation (friction coefficient reduced to 0.05-0.08)
The main failure modes of the sleeve on silicon steel coil are aluminum adhesion wear (70%) and fatigue deformation (25%). After adopting DLC coating, the replacement cycle can be extended to 7-8 years. The latest technology generates an Al ? O Ⅲ ceramic layer through plasma electrolytic oxidation (PEO), further reducing the adhesion rate of aluminum materials.
Company introduction
GW precision locates on the west side of luoyang city. Steel sleeve are one of our main products.
Since the very beginning of dedicated stainless steel sleeve production, the company formed the principle of top-ranking products, quality and service. We serve our customers with strict quality inspection and technology control on our steel sleeve. The sleeve products are popular for domestic and abroad companies all over the world in aluminium processing industry .
