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Hardening & tempering

According to the advantages of medium frequency heating, combined with the traditional process, our company designed and manufactured many quenching tempering production line, which is widely used in mining machinery (single prop, long metal beam, U type steel frame, type beam), petroleum machinery (drill pipe, drill collar, sucker rod etc.). The energy consumption is reduced by more than 20%, for customers to create more advantages in in the market competition.

hardening and tempering

Hardening & tempering process

 

hardening tempering

Successful cases:

Mining grinding rod hardening and tempering production line

● Power supply system: KGPS 160 KW-1000 KW/0.5-2.5 KHz.

● Transmission roller table: The angle between roller axis and work piece axis is 18 ~ 21 °. The work piece is rotating and go forward at the uniform rate for uniform heating. Rollers between furnace are 304 non-magnetic stainless steel and water-cooled.

● Temperature closed-loop system: Both hardening and tempering process used closed-loop control system which consists of America Raytek infrared thermometer and German Siemens S7 with high precision temperature control.

● The power consumption is 280-320 KW/H with hardening and self-tempering mode.

Oil drill pipe/rod hardening and tempering Line

●  Power supply composition : Hardening 500KW / 1000HZ        Tempering 200KW / 500HZ

● Feeding system: Independent motor reducer drive for each axis , independent inverter control; flexible design speed differential output, section speed control.

●  Powerful recipe management system for induction heating equipment–after inputting parameters of steel grade, outer diameter and wall thickness, this system can automatically call the relevant parameters, no need to manually record, check, input required parameters for various work piece.

Engineering machinery blade plate quenching Line

● Power supply system:KGPS 200~800 KW/4~8 KHZ or IGBT 200~800 KW/4~15 KHZ.

● Feeding system: Roller table+power double pitch, independent motor reducer drive for each axis , independent inverter control; flexible design speed differential output, section speed control

● The power consumption is 240-260 KW/H for heating each ton of steel to 840℃.

Bar & pipe hardening and tempering Line

● Power supply system: KGPS 160 KW-1000 KW/0.5-2.5 KHz.

● IPC system: Powerful functions including the display of the current working parameters status, work piece parameters memory, storage, print, fault display and alarm and so on.

● The power consumption is 280-320 KW/H with hardening and self-tempering mode.