drill rod

详情

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 ***0 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.

Water well drill pipe applications

Using to projects of mine blasting, water well drilling, geothermal well drilling, pipe-shed support drilling, coal mining and non-ferrous mental mining and so on.
 

Geological drill pipe

Geological drill pipe is applicable for geographical, hydrographical, coal mining, terrestrial heat and engineering drilling. The main products include: Φ*2, Φ*0, Φ*0, Φ*3.5. The major technical indexes of these seamless steel pipes are in compliance with international standard strictly.

Our raw materials are resourced from "An Steel, Bao Steel, Heng Steel, Bao Steel and Dazhi Steel", the five famous steel plants, which have all obtained the certificate of ISO***1 Quality Management System. The pipe materials for geographic drills have strict demands in term of sizes, forms, weights, technical specifications, test methods, test regulations, packing, marking and quality certificates. The seamless steel pipes used for geographic drills, which are produced by our company all adopt the original ex-factory identifications. If the contract says that goods should be delivered in terms of steel grades, then the identifications and quality certificates of the steel pipes should be indicated with steel grades. The steel grades of drill pipes currently on the market are DZ*0, DZ*0, DZ*0 and R**0.