CN111979387A
|
|
Heat treatment method of spring steel 38Si7 with controlled surface decarburization and mechanical properties
|
CN111889518A
|
|
Water-saving roll pass surface cooling device, manufacturing method and rolling mill set
|
CN111889600A
|
|
Method for batch production of right-angle square steel by using precision forging machine
|
CN111715829A
|
|
Forging method for improving ultrasonic flaw detection qualification rate of large-step-difference roller blank
|
CN111760906A
|
|
Blooming mill rolling process for improving internal quality of large-size bar
|
CN111760907A
|
|
Controlled rolling and cooling method for carbon structural steel
|
CN111647721A
|
|
Method for solving low-temperature impact energy of high-alloy structural steel after hardening and tempering
|
CN111644552A
|
|
Forging method of multistage step roller with cone frustum
|
CN111644550A
|
|
Forging forming device matched with upper anvil for free forging and method for forging multistage step roller by using forging forming device
|
CN111644551A
|
|
Wedge-shaped plate forging processing method
|
CN111485242A
|
|
Low-carbon steel surface treatment method
|
CN111534759A
|
|
Processing method for improving end cracking of high-hardenability steel after annealing
|
CN111581751A
|
|
Design method of initial rolling down-the-hole type used on continuous rolling mill
|
CN111411198A
|
|
Method for increasing nitrogen of nitrogen-containing steel for wind power flange by utilizing RH vacuum degassing system
|
CN111500926A
|
|
Steel material for ships and manufacturing method thereof
|
CN111482568A
|
|
Control method of net-shaped carbide of hot-rolled bearing steel
|
CN111167984A
|
|
Forging method for forging sector plate by using arc anvil
|
CN111167986A
|
|
Forging method for improving net shape of roller blank by using radial forging machine
|
CN111266504A
|
|
Forging method for reducing bending degree of slender steel
|
CN111151693A
|
|
Forming method for forging fillet square steel by precision forging machine
|