Purpose of annealing:
1. Reduce hardness and improve machinability.
2. Eliminate residual stress, stabilize size, reduce deformation
and crack tendency.
3. Refine the grains, improve the structure, and eliminate the
defects of the structure.
4. Homogenize material organization and composition, improve
material properties and prepare for subsequent heat treatment. The
seamless steel pipe annealing furnace is to heat the steel pipe to
a temperature slightly higher than Ac1, and after holding for a
certain period of time, it is cooled to 550°C ~ 600°C and the heat
treatment process with air cooling is called stress relief seamless
steel tube annealing
| product name | carbon seamless pipe Hot rolled Seamless Steel Tubes |
| standard | GB, JIS, DIN, ASTM, bs, GB 18248-2000, JIS G3463-2006 |
| Material | 10#.20#.45#15Mn.20Mn.45Mn.30Mn2 q235 A106 |
| packing | 1.Wrapped in waterproof paper of steel pipe tube
2.Sackcloth with several steel strips of steel pipe tube
3.Cover cap of steelpipe tube
4. Wooden case of steel pipe tube |
| size | OD 3-300MM wall thickness: 1-30MM |
| suface | 1. PVC, black and paint
2. Transparent oil and rust-proof oil
3. According to customer requirements |
| MOQ | 1TONS |
| Trade | T/T, 100% L/C at sight, Cash, Western Union are all accepted if you
have other payment,please contact me |
seamless steel tube
The seamless steel tube annealing furnace adopts an intermediate
frequency heating device, which is specially designed for the
seamless steel tube continuous annealing furnace. According to the
characteristics of its heating in motion and the characteristics of
the heated workpiece being a seamless steel pipe, the intermediate
frequency power supply and the parameters of the inductor are
designed in the system. Special design, the whole set of seamless
steel tube annealing furnace production line equipment system is
controlled by a separate power supply, and the performance is
stable.
Seamless steel tube annealing furnace inductor manufacturing
process:
The ratio of the inner diameter of the inductor coil to the outer
diameter of the workpiece is within a reasonable range, and is
designed according to the process parameters of the induction
heating furnace provided by the user. The inductor coil is made of
large cross-section T2 rectangular copper tube after annealing,
winding, pickling, water pressure test, baking, drying, knotting,
assembly and other major processes, and then fixed as a whole, the
entire inductor is completed. After forming into a rectangular
parallelepiped, its vibration resistance and integrity are good.
Both ends of the inductor are protected by copper plates at the
mouth of the water-cooled furnace, which can effectively prevent
electromagnetic radiation from harming the operator.
