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Application of down-the-hole drill pipe-Yikuang Technology
Release time:
2020-06-09
Author:
Source:
It is mainly used in rock drilling and crushing, anchoring drilling, geothermal air conditioning hole, water well drilling, etc. The pipe body is made of materials produced by well-known large-scale iron and steel enterprises in China. The two ends of the pipe body are internally thickened, tempered after friction welding, quenched and tempered after rough machining of drill pipe joints, and nitrided after surface finishing. The failure rates such as gluing, broken buckles, outer diameter expansion and cracking are effectively eliminated, and the pipe body is more wear-resistant and easy to disassemble. All imported precision CNC lathes and custom-made forming knives are used for thread processing. All threads are equipped with thread gauges in line with international standards, so the quality of the drill pipes produced is stable and reliable.
It is mainly used in rock drilling and crushing, anchoring drilling, geothermal air conditioning hole, water well drilling, etc.The pipes are made of materials produced by well-known large-scale iron and steel enterprises in China. With the internal thickening process, friction welding after tempering treatment, drill pipe joints for rough machining after quenching and tempering heat treatment, after finishing surface nitriding treatment, effectively put an end to the sticky, Failure rate such as broken buckle, outer diameter burst crack, etc., more wear-resistant, easy to disassemble.All imported precision CNC lathes, custom molding knives for thread processing, all threads are configured In line with international standards of thread gauge, so the production of drill pipe quality is stable, reliable, greatly lengthened the life cycle.
Specification and model table
| Serial NumberNo. |
Diameter of drill pipe |
Thread standard |
Steel Grade |
Rod body wall thickness |
thickening form |
Length of drill pipe1 |
|
| inch |
mm |
mm |
mm |
||||
| 1 |
/ |
42 |
Flat/cone buckle |
DZ40, R780 |
6.2 |
inner thickening |
1000-5000 |
| 2 |
/ |
50 |
Flat/cone buckle |
DZ40, R780 |
6.5 |
inner thickening |
1000-5000 |
| 3 |
/ |
60 |
Flat/cone buckle |
DZ40, R780 |
7.1 |
inner thickening |
1000-5000 |
| 4 |
3 |
76 |
2-3/8” REG |
R780, G105s S135 |
6,8 |
inner thickening |
1000-5000 |
| 5 |
3 1/2 |
89 |
2 3/8" IF NC26 |
R780,G105,S135 |
6.5,8 |
inner thickening |
1000-5000 |
| 6 |
4 |
102 |
2 7/8" IF NC31 |
R780,G105,S135 |
8,9.19 |
inner thickening |
1000-5000 |
| 7 |
4 1/4 |
108 |
2 7/8" IF NC31 |
R780,G105,S135 |
8,9.19 |
inner thickening |
1000-5000 |
| 8 |
4 1/2 |
114 |
2 7/8" IF NC31 |
R780,G105,S135 |
8,10 |
inner thickening |
1500-6000 |
| 6 |
5 |
127 |
3 1/2" IF NC38 |
R780,G105,S135 |
8, 10, 12 |
inner thickening |
1500-6000 |
Key words:
Technology, thickened, r780,1000-5000,s135,g105,if, thread, drill pipe, mm
