Advanced drill pipe production lines can transfer the welding parameters
to the best position to ensure the quality of welding zone; the heat
treatment process with the feature of internal and external cooling at
the same time can make a more reliable and stable mechanical character.
Application of automatic weight, length measurement and automatic spray
records can ensure products' traceability. Application of thickening and
heating lines and 1250 tons of upsetting machine can ensure the
thickening size meet the standard of API SPEC 5DR Using of CN furnace
for whole pipe body heating and quenching, tempering machine's advanced
heat treatment process can ensure the pipe's mechanical character. Tube
hydraulic straightening machine ensures the straightness and coaxiality
of pipe body.
