ã€China Aluminum Industry Network】 There are three ways of hot pressing of aluminum alloy ingots: single-stand hot rolling, double-stand hot rolling and semi-continuous hot rolling. The following is a brief introduction to these three methods.
(1) Single-stand hot rolling. From the beginning of the billet to the completion of hot rolling, it was completed on a hot rolling mill. Large ingots are used to increase production efficiency and reversible mills are used. To increase the board width and improve the board shape, a four-high mill is used. In single-stand hot rolling, the temperature drop of the rolling piece is large, the final rolling thickness is large (6 to 8 mm), the roll weight is relatively light, and the quality and production efficiency of the rolling piece are not ideal.
(2) Double rack hot rolling. A reversible rolling mill performs ingot debossing and hot roughing, and is transferred to a second four-high reversing mill for hot finish rolling. Due to the division of work between rough rolling and finish rolling, not only the production capacity and production efficiency are improved, but also the quality of the rolling pieces has been improved. Final thickness up to 2mm.
(3) Semi-continuous hot rolling. One or two reversing mills are used for billet and hot roughing. The rolling stock is then transferred to a three- to six-stand four-high tandem mill and hot-rolled with only one pass per rack. Due to the use of large ingots and high speed rolling, not only the production scale is large, but also the rolling gap time is short, so the final rolling temperature is high, and the rolling can be achieved in a strip corresponding to the annealed state, and the quality is also significantly improved.
1.Application : For Bicycle Frame
2.Dimension: Customized dimension, OEM & ODM
3.Material: A6063, A6061, A3003 and other series alu alloy
4.Suface treatment: Anodizing, polishing, turning ,power coating, mill finish etc
5.Equipment: CNC ,extruding machine, cold drawn machine, heating oven, straightening machine, cutting machine
|
OD |
OD Tolerance |
ID Tolerance |
Roundness |
Straightness |
Circular run-out |
|
φ16-20 |
±0.02 |
±0.02 |
0.01↓ |
0.015↓ |
0.05↓ |
|
φ20-30 |
±0.02 |
±0.02 |
0.01↓ |
0.015↓ |
0.05↓ |
|
φ30-50 |
±0.05 |
±0.05 |
0.02↓ |
0.020↓ |
0.08↓ |
|
φ50-80 |
±0.15 |
±0.10 |
0.05↓ |
0.025↓ |
0.10↓ |
6. STANDARD PACKING:Wooden case/carton
7. Trade Terms
1. Payment: 30% T/T in advance, 70% balance pay before delivery. L/C at sight.
2. Delivery time: 20 days after deposit receiverd. If opening mould, plus 7-10 days.
3. Trade Term can be chosen depending on your requirements.
4. FOB Port: Shanghai
Drawn Tube For Bicycle Frame,Bicycle Frame,Aluminum Drawn Tube For Bicycle,Bicycle Aluminum Drawn Tube
Changzhou YiFei Machinery Co., Ltd. , https://www.yifeialu.com