Ningbo Junyi Plastic Industry Co., Ltd.

dd d -- -.>Zhejiang sand pumping floating body manufacturer polyethylene
- ->Floating body
- -.> is a commonly used dredging project and dredging pipeline in land reclamation projects at home and abroad. Floating materials used in sand pumping pipelines, sand pumping vessels, and seawater pipe laying dredger pipelines. The following matters should be noted when selecting a floating body:
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- ->The buoyancy of the floating body
- -.> is generally required to be greater than the pipeline itself % of the weight (including mud with a specific gravity of .) The height of the pipeline above the water surface during operation is about/about the height of the steel pipe.
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- ->The overall weight of the floating body
- -.>: not less than -% of the ordering parameters because the floating body The weight is related to the weight of the floating body shell and the specific gravity and volume of the floating body foam. The strength of the floating body plastic shell and the specific gravity of the foam are difficult to guarantee if the weight is too light. The specific gravity of the foam should be around kg/m3.
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- ->Floating body
- -.> Degree of plasticization of the plastic shell. The inside of the plasticized floating body should have a smooth surface. Smooth and no obvious particles. At this time, the plastic shell has the best tensile strength.
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dd d -- -.>. The density of the filled foam should generally be about kg/cubic meter. The tensile strength at this time is around. It is qualified if it is slightly elastic, not sticky and not brittle. Only floats that guarantee the above product standards are truly durable and good floats.
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dd d -- -.>,
- ->Floating body
- -.>The welding of the foaming holes must be firm. If there are leaks, they should be repaired. .
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dd d -- -.>Zhejiang sand pumping floating body Manufacturer's large-diameter ultra-high molecular weight polyethylene
- ->Dredging pipe
- -.> is continuously extruded from ultra-high molecular weight polyethylene raw materials using a special extruder and a specially designed mold. This kind of pipeline can be used to transport various highly corrosive and highly abrasive liquids or solid-liquid mixtures, such as various acids, alkali liquids, crude oil, tailings, mud and power plant fly ash, etc. Compared with seamless steel pipes, ultra-high molecular weight polyethylene pipes have obvious advantages. Under strong corrosion and high wear conditions, the service life can be increased several times or even more than ten times. Due to the non-adhesion (non-scaling) of the inner wall of ultra-high molecular weight polyethylene pipes Due to its small resistance and friction coefficient, it can reduce the transportation pressure or reduce the diameter of the transportation pipe, which is of great significance for long-distance transportation. Because the thermal conductivity of ultra-high molecular weight polyethylene
- ->dredging pipeline
- -.> is higher than that of steel. Being more than 10,000 times smaller can greatly reduce the insulation cost of transportation pipelines, which is a major advantage for transporting crude oil and other materials in cold areas and winter.
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dd d -- -.>Zhejiang sand pumping float manufacturer, performance characteristics:
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dd d -- -.>Wear resistance ranks first among plastics The highest impact strength is - times that of carbon steel and stainless steel
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dd d -- -.>The impact strength of plastics ranks first in the list of times and times
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dd d -- -.>Self-lubricating, anti-adhesion, non-fouling, low friction coefficient comparable to PTFE
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dd d -- -.>Impact energy absorption value It has the highest sound-absorbing properties among all plastics
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dd d -- -.>Good chemical stability and can withstand various corrosive media and organic media within a certain temperature and concentration range
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dd d -- -.>Excellent low temperature resistance and ductility at -℃
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dd d -- -.>Excellent internal resistance Compressive strength, environmental stress cracking resistance, rapid cracking resistance
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dd d -- -.>Hygienic, non-toxic and can come into contact with food and drugs.
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dd d -- -.> Light weight and easy to install.
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