We remain as the biggest manufacture company in the world is about 20%
of all manufacturing of all worlds. Hope fully us will must be largest producer
of oil but the fact is discovered with the invention of technology will
frequent result largest reserves &
oil production number of any country on our planet little.
During the oil- producing & it moving or
using period many of quantity pipe are use
or involve wilder quantity .High frequency welded ERW
pipe produced with a welding current frequency equal to or greater than 70 kHZ.
Through high-frequency current welding resistance, the heat generated in the
contact objects, so the objected surface are heated to the plastic state, then
with or without forging to achieve a combination of steels. High frequency welded
is solid resistance heat energy. The high frequency current pass through the
metal conductor, will produce two peculiar effects, skin effect and proximity
effect. High frequency welded (HFW)
pipe Manufacturers process is to use the skin effect to concentrated on
steel object surface, use proximity effects to control the position and the
power of the high-frequency electric current flow path. Since the speed is very
high, the contacted plate edge could be heated and melted in shore time, then
extruded through docking process
Advantage of High
frequency welded pipe in the welding
process, High frequency welded
steel pipes do not need to add filling Meta. So it has fast welding speed and
high efficiency in production. High
frequency welded pipe is widely used in the fields of oil and gas
transportation, oil well pipeline, building structure and various kinds of
mechanical pipe. However, High
frequency welded steel pipe quality is affected by many factors, such as
raw material and process. And the production quality control becomes difficult.
So the yield and welding process still need to be improved continuously.
A seamless tube is a tube that does not have any welding seam. The
seamless tube will ideally be a solid metal tube with each end connected to
another tube without having any welding joint. These tubes have threads either
at one end or at both ends and can be threaded to the end of another hollow
tube or pipe. The presence of any seam on a welded tube acts as a weak point,
however if the tube is seamless, it tends to be solid and overcome various
industrial forces and pressures while in operation. A seamless tube may also be
known as a seamless pipe.
Seamless TubeA seamless tube can be made from any
of several alloys and metals such as carbon steel, stainless steel, molybdenum
or tungsten. Seamless tubes are used in those industrial applications that
mandate the highest safety requirements. In order to produce a seamless tube, a
solid block is penetrated by a piercing plug before the tube is drawn to its
desired size.
A seamless
tube is extruded and drawn from a billet whereas a welded tube is produced from
a strip that is roll formed and welded to produce a tube. Since a seamless tube
offers a higher range of safety measures it is more expensive than a welded tuba
seamless tube is relatively short in length, whereas welded tubes can be
manufactured in long continuous lengths. A seamless tube generally doesn't show
any sign of corrosion until and unless it is subjected to a highly corrosive
environment, whereas the weld area in the welded tube is much more prone to
corrosion attacks.
A welded
area is considered to be in homogeneous, thus it exhibits a different
malleability and less corrosion resistance as well as greater dimensional
variation. A seamless tube eliminates any such issues and thus offers high
corrosion resistance.
The Weatherockgroup.com is the best manufacture of Double
Submerged arc Welded (DSAW) Pipe & Longitudinal Welded Pipe Manufacturer.
Join us by one clicks Weatherockgroup.com we assure that you must be hit the
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Source: https://medium.com/@weatherockgroup/weatherockgroup-com-high-frequency-welded-hfw-pipe-seamless-tubes-manufacturers-aab97bf9236c
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