Ningbo Fangli Technology Co., Ltd. is a
mechanical equipment manufacturer with nearly 30 years’ experiences of plastic
pipe extrusion equipment, new environmental protection and new materials
equipment. Since its establishment Fangli has been developed based on user’s
demands. Through continuous improvement, independent R&D on the core technology
and digestion & absorption of advanced technology and other means, we have
developed PVC pipe extrusion line, PP-R pipe extrusion line, PE water supply /
gas pipe extrusion line, which was recommended by the Chinese Ministry of
Construction to replace imported products. We have gained the title of
“First-class Brand in Zhejiang Province”.
Due to the limitations of materials and
structures, simple wall plastic pipes are mainly used in small-diameter pipes,
while large-diameter pipes mainly use various structural wall plastic pipes,
such as double wall corrugated pipe, clara winding pipe and hollow wall winding
pipe. Among all kinds of large-diameter plastic drainage pipes, the most widely
used is high-density polyethylene (HDPE) large-diameter hollow wall winding
pipe. Compared with similar pipes, HDPE large diameter hollow wall wound pipe
has many outstanding advantages.
HDPE hollow wall winding pipe has unique
structure and production process. Because its side wall is hollow, it is called
hollow wall winding pipe (hereinafter referred to as "winding pipe").
In recent years, HDPE winding pipe has developed very rapidly, mainly because
it has many outstanding advantages compared with other pipes. It is not only
light and tough, but also changes the disadvantages of traditional pipes. It
can achieve ideal construction efficiency and economic effect while having good
application performance.
In terms of materials, HDPE has many
advantages such as temperature resistance, corrosion resistance, wear
resistance, high strength, earthquake resistance, light weight, long service
life, good insulation performance and easy molding. In addition, it has
excellent creep resistance and stress cracking resistance. As a buried drainage
and sewage pipeline, HDPE also has special functions such as resistance to
ground settlement and stratum subsidence, so it is widely used in large and
medium diameter drainage sewage pipes are mostly made of HDPE.
From the perspective of process, the
winding process has less investment in equipment, reliable process technology,
and it is easy to change the specification and performance of products. It can
manufacture buried drainage pipes with large diameter. So far, only HDPE winding
pipes with a diameter greater than 1800 mm. At the same time, the product
qualification rate and equipment utilization rate of HDPE large-diameter
winding pipe are easy to reach the ideal state. When the diameter is larger
than 1000 mm, the cost of HDPE winding pipe is lower than that of any other
pipes, and its equipment investment is far less than that of other
large-diameter structural wall pipes. Moreover, as long as the transportation
conditions allow, the pipe can be continuously wound to any length.
However, HDPE winding pipe also has
disadvantages. First, the reliability of overall strength is poor, because the
welding seam of large-diameter winding pipe is very long, which makes the
welding quality difficult to detect; Second, under the same diameter and ring
stiffness, the wound pipe generally consumes more raw materials than the
directly extruded double wall bellows.
If you need more information, Ningbo Fangli
Technology Co., Ltd. welcomes you to contact for a detailed inquiry, we will
provide you with professional technical guidance or equipment procurement
suggestions.
https://www.fangliextru.com/extrusion-equipment-for-type-a-structural-wall-winding-pipe.html