| Autor |
|
|
|
| Stainless steel seamless pipe manufacturing process 1 |
|
|
| 2278 Beiträge - Forenlegende
|
|
|
{
1. Hot rolling (extrusion seamless steel pipe): round billet → heating → perforation → three-roll cross-rolling, continuous rolling or extrusion → pipe removal → sizing (or reducing diameter) → cooling → straightening → hydraulic test (or flaw detection) → mark → the raw material for the seamless tube is the round tube blank. The round tube embryo is cut into a blank with a length of about 1 meter by a cutting machine, and sent to the furnace for heating through a conveyor belt.
The billet is fed into a furnace and heated to a temperature of approximately 1200 degrees Celsius. The fuel is hydrogen or acetylene. Furnace temperature control is a key issue. After the round billet is released, it is subjected to a through-hole punching machine. The more common perforating machine is a conical roller punching machine. This perforating machine has high production efficiency, good product quality, large diameter of perforation and can wear a variety of steel types. After perforation, the round billet is successively rolled, rolled or extruded by three rolls. After extrusion, the tube should be sizing. The sizing machine is rotated at a high speed by a conical drill bit into a steel core to form a steel pipe.
The inner diameter of the steel pipe is determined by the outer diameter of the sizing machine drill bit. After the steel pipe has been sized, it enters the cooling tower and is cooled by water spray. After the steel pipe is cooled, it is straightened. After the steel pipe is straightened, it is sent to a metal flaw detector (or water pressure test) by a conveyor belt for internal flaw detection. If there are cracks inside the steel pipe, bubbles and other problems will be detected.
read more:
Barra Plana Roscada Astm A576 Barra Redonda De Acero
Astm A182 304 Brida Roscada De Acero Inoxidable
Aisi 1010 1015 Bola De Acero De Bajo Carbono Suave... Endurecer
|
| Beitrag vom 19.11.2018 - 09:32 |
|
Usermap
Seitenanfang: