Help! What is the weight of a φ 16mm*8m sucker rod? About 1255kg.
Weight = volume * specific gravity
= radius * radius *Pi* length * specific gravity
=0.8*0.8*3. 14*80*7.8 (kg)
= 1255kg
Outer diameter 16mm is the number of tubes. Outside diameter 16mm is a steel pipe with outside diameter as the specification, which cannot be compared with the number of pipes with nominal diameter as the specification.
Nominal Diameter (Metric) Nominal Diameter (English) Outer Diameter
6 1/8 10 1 score
8 1/4 13.5 2 points
10 3/8 17 3 point
151/221.34 points
20 3/4 26.8 6 points
25 1 33.5 8 o'clock
What is the fraction of seamless steel pipe with inner diameter 10mm and outer diameter 16mm? The outer diameter of 1/2 "is 2 1.3, which should be 4 points.
I am engaged in oil production! Colleagues always say that sucker rods at 6 o'clock or 7 o'clock, that is, sucker rods with outer diameters of 19mm and 22mm, how long is that point? One inch equals 25.4 millimeters, and one inch equals eight minutes. That point means one British minute, which is 3. 175 mm.
How much do you want to buy a plastic water pipe ball valve with outer diameter 16mm? The "4-point" in the "4-point ball valve" is evolved according to the length unit inch;
Divide 1 inch (25.4 mm) into 8 equal parts, and divide 4 points into 4/8, that is, 1/2 inch, that is, 12.7 mm. ..
Therefore, the diameter of the "four-point ball valve" is12.7 mm.
Where is standard Japanese based? Japanese is generally divided into Kansai dialect and Kanto dialect. Naruto accent in Naruto is a relative accent. People in Tokyo usually speak standard Japanese.
Does dev strictly follow the C++ standard? What programming software is strictly in accordance with the C++ standard? Dave, no! Dev is the most relaxed requirement for programming. Vc has the strictest requirements for programming. What the same code can execute on Dev may not be executed on Vc. But Vc code runs everywhere. Of course, the code written by Dev is not a serious mistake, but a low-level warning formed by programming habits. Such as defining the position of variables, and so on. .
Ps:
Vc suggests enterprise edition. The simplified version is prone to errors.
Turbocharged c is not clear,,,
What kind of sucker rod is better? Brief introduction of sucker rod products;
With the wide application of screw pump oil production technology in various oilfields in China, the failure problem of sucker rod string matching with screw pump is becoming more and more prominent. The main reasons for the failure are sucker rod string fracture, joint thread tripping, and inconvenient installation and disassembly of sucker rod in the well. Therefore, it is suggested to develop a special sucker rod for screw pump.
Current situation abroad:
The sucker rod produced by French PCM company was tested in the first well of offshore oil field in China, and the working time in the well was less than 12 hours.
Family status:
This product produced by the largest sucker rod manufacturer in China adopts friction welding technology, coupling and rod head processing and molding, thread rolling/extrusion, which effectively improves the strength of threaded connection and solves the problems of rod breaking and loosening in the use of ordinary sucker rods to some extent. However, due to the friction welding between the rod head and the rod body, as well as the defects in the friction welding process and heat treatment process, early fatigue fracture often occurs in the heat affected zone of weld and welding problems, which affects the service life of the products after fatigue operation in the use of screw pump oil wells.
Special sucker rod for screw pump is a patented product developed by our company. The upsetting process is reasonable in structure and advanced in technology, which well solves the failure problems of sucker rod string fracture, joint tripping, sucker rod downhole and inconvenient installation and disassembly.
Do you have any standard sizes for range hoods? There are many styles of range hoods, which are commonly used. The standard width of China range hood is 750 (there are two small sizes of 700 and 720). The standard width of European range hood is 900mm (small size is 750). Side suction type is 900 820 750 700.