Aluminum Foil Winding Spools
Description
Spools, also known as winding spools or occasionally rolling mill sleeves, are thick-walled tubes used for winding thin aluminum strips, aluminum foil, or stainless steel thin sheet metal for transportation in the manufacturing process and storage. The wound metal is called a coil. 
Product advantages
(1) Adopting the centrifugal casting process to achieve a high density of materials.
(2) Use the special tool to process the end face, taper, and the outer circle according to the inner hole to ensure the beating of the taper, the concentricity, and cylindricity of the steel spool.
(3)Selected materials: ZG35, KCP-12, and other high-temperature resistant material,non-deformable alloy steel.
Elements
Materials | C | Si | Mn | Cr | Ni | Mo | v | S, P | Introduction |
ZG310-570 | 0.50 | 0.6 | 0.90 | ≤0.040 | Low plasticity and toughness, low-temperature resistance, low cost. | ||||
35CrMo | 0.32-0.40 | 0.17-0.37 | 0.40-0.70 | 0.80-1.10 | 0.15-0.25 | ≤0.035 | High strength, toughness, and hardness, high-temperature resistance, low cost | ||
35CrMov | 0.30-0.38 | 0.17-0.37 | 0.40-0.70 | 1.00-1.30 | 0.20-0.30 | 0.10-0.20 | ≤0.035 | Better than 35CrMo performance, low cost | |
35NiCrMo | 0.30-0.37 | 0.6-0.9 | 0.40-0.90 | 0.40-0.90 | 0.60-0.90 | 0.40-0.50 | ≤0.035 | High strength and toughness, high-temperature resistance, high cost | |
KCP-12 | 0.20-0.30 | ≤0.60 | 0.90-1.10 | 0.40-0.90 | 1.00-1.50 | 0.30-0.50 | ≤0.040 | High strength and toughness, high-temperature resistance, high cost |
The production process of casting steel spool:
1. centrifugal casting
Centrifugal pressure casting can ensure the chemical composition of the spile, achieving its is reliability and accuracy. Ther will not be crack, scum stoma, and sandstone in its inner and outer surface because of centrifugal pressure casting. Besides, excellent heat treatment can ensure the mechanical properties of the spile.
2.Steel spool Machining
Professional equipment is used to process the inner hole, outer circle, and key groove to ensure the precision of the inner hole and diameter tolerance of the cylinder within 0.05 MM;
The processing needs to meet the concentricity requirements of the outer circle and the inner hole;
The machining of the outer circle and taper is finished in the same CNC lathe, which satisfies its tolerance and size requirement.
3.Dynamic balance test
The steel spool is carried out on the professional dynamic balance machine which can ensure its precision reach G2.5.
4. Package and delivery
The inner and outer surface of the steel spool is coated with anti-rust oil with the plastic cloth and the grass ropes tightly wound around it;
It is delivered by a whole lot, with measures of anti-collision without other goods. Besides, it can also be packaged and shipped according to export standards.
If you have any detailed requests for the steel spool, feel free to contact us and we warmly welcome customers and friends visit us .
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