|
Designation |
Symbol |
Description |
|
寄遞情（qíng）況 |
商標 |
作（zuò）出說明 |
|
Cold finished (hard) |
BK（+C） |
Tubes do not undergo heat treatment following the final cold forming and, thus, have a rather high resistance to deformation |
|
冷進行加工（硬） |
最終冷（lěng）進行（háng）加工隨後不（bú）開展熱采用相應辦法解決， 進而管材隻或許開展最（zuì）小的蛻變。 |
|
Cold finished (Soft) |
BKW
（+LC） |
The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding) |
|
冷（lěng）進行加工（軟） |
最終熱采用相應辦法解決隨（suí）後開展小蛻變量（liàng）的冷進行加工， 對無縫鋼管再進行加工（gōng）時決定著名的冷蛻變（biàn）（比如： 躬身行禮（lǐ）， 擴口） |
|
Cold finished and stress-relieved |
BKS（+SR） |
Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree. |
|
冷進行（háng）加（jiā）工後需要剪（jiǎn）應力退學（xué） |
最（zuì）終冷進行加工後在Acl點這陣（zhèn）兒開展退（tuì）學（xué）， 以需要（yào）冷進行加工剪應力。 |
|
Annealed |
utf-8（+A） |
The last Cold forming process is followed by annealing in a controlled atmosphere. |
|
退學（xué） |
最終冷（lěng）進行加工隨後，無縫鋼管在維護固體（tǐ）下（xià）開展全（quán）部退學（xué）。 |
|
Normalized |
NBK（+N） |
The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere. |
|
正火 |
最終冷進（jìn）行加工隨後，無縫鋼管在維護固體下開展正火。 |
