Guizhou pumping sand tubes - ultra high molecular weight polyethylene pipe parameters Ingredients: Our company is Shanghai Research Institute of Chemical test base, the company's ultra high molecular weight polyethylene pipe used in all its production of wear-resistant pipe for raw materials, the material properties of table No. Index Name Physical Properties ordinary pipe resin wear-resistant pipe resin test standard a viscosity average molecular weight (104) Viscosity-average Molecular Weight (104) 150 ± 20 280 ± 20 GB / T1841-1980 2 Density (g / Cm3) Density (g / Cm3) 0.94 ± 0.02 0.94 ± 0.02 GB / T1033-1986 3 moisture ≤ (%) Moisture Content≤ (%) 0.15 0.15 4 amount of wear ≤ (mg) Wear Property≤ (mg) 12.0 6.0 GB / T3960-1983 5 slide friction coefficient ≤ Coefficient of Sliding Friction ≤ 0.17 0.15 GB / T3960-1983 6 tensile yield strength ≥ (Mpa) Tensile Stress at ield ≥ (Mpa) 22 22 GB / T1040-1992 7 Tensile strength ≥ (Mpa) Tensile Strength ≥ (Mpa) 33 33 GB / T1040-1992 8 tensile elongation at break ≥ (%) Tensile Elongation at Break ≥ (%) 350 350 GB / T1040-1992 9 Izod impact strength (KJ / m2) Lzod Notched lmpact Strength ( KJ / m2) 20C 20C constantly constantly GB / T1843-1996 Lzod Notchedlmpact Strength (KJ / m2) -20C -20C continuous 10 continuous heat distortion temperature ≥ (℃) Heat Distortion Temperature (℃) 80 80 GB / T1634-1979 11 管Diameter (mm) Pipeline Diameter (mm) 130,205,250,315,350,426,536,630 12 performance Character high corrosion resistance, easy to scale, high wear resistance, high impact resistance, low temperature resistance, flexibility, convenience and securely connected, Cheap High corrosion resistance, non-stick, high anti-abrasion, outstanding impact resistance, low temperature, flexibility, connections convenient and economical 13 Main Application The main purpose of transporting a variety of acid, lye, crude oil, mortar, mud, coal slurry, gas, power plant powder ash, various ores and other durable Conveying a variety of acid, caustic, crude oil, mortar, mud, coal-water slurry, natural gas, coalash, metal ore and so on, durable State-run ultra-high molecular weight polyethylene pipe industry ethylene pipes and other pipes performance comparison table project unit test methods other engineering plastics ultra model M-11 M-111 nylon, polycarbonate, PTFE Teflon Density g / Cm3 ASTM D1505 0.935 0.930 1.14 1.2 1.4 2.16 average molecular weight - Viscosity 2,500,350 万 - - - yield stress Kg / m2 ASTM D638 400 500 750 640 700 200 Tensile Strength Kg / m2 ASTM D638 350 300 200 110 75 300 impact strength Kg.cm/cm ASTMD256 / td> destruction can not can not destroy 801,016 impact strength (notched) Kg.cm/cm ASTMD256 110 105 - - - - Brinell hardness D ASTMD2240 40 40 100 118 120 - the dynamic friction coefficient Kg / m2m / s Mitsui Shantou of 0.2 0.2 0.4 - 0.4 0.2 wear rate (sanding) Mg Mitsui Shantou for 20 15 - - 170 225 melting point ℃ ASTMD2117 136 136 255 240 166 - Vicat softening point Celsius ASTMD648 85 80 200 138 170 121 expansion coefficient of 10-4 / ℃ ASTMD696 1.5 / td > 1.5 0.8 1.0 0.66 0.81 Thermal Conductivity 10-cal /cm.S.℃ ASTMD177 8.5 8.5 5.85 4.6 5.5 6.0 Water absorption% ASTMD570 0.01 0.01 1.5 0.15 0.25 0.02 Luoyang State-run production of ultra high molecular weight polyethylene pipe industry a tube characteristics, very high wear resistance. Its wear resistance is 4-7 times that of steel, polypropylene 10 times, 2.3 times of pe. A class of small particles of fly ash transport slurry better. Sandblasting comparison test 30% Sio2 slurry erosion test material volume decreases contrast material volume loss PE80 0.25 45 gauge steel cast iron pipe 25 PE100 0.15 15 0.016 UHMWPE pipe UHMWPE pipe 62, high impact sex. Its resistance to environmental stress cracking, anti-carved ability among the best in the entire engineering plastics. Its impact strength related to molecular weight. Under the impact strength at room temperature which is 2 times the PC, more than 10 times the PE100, -30 ℃ time is more than 16 times the PE100, the anti-cracking capacity is about 2 times PE100, the lower the ambient temperature, the stronger the impact. It is worth noting that it is at liquid nitrogen temperature (-196 ℃) can maintain excellent impact strength, which is not of other plastics. Higher surface hardness after repeated shocks, which is very good against cavitation. He's such extraordinary flexibility, making it without composite pipe, it can withstand a variety of external shocks, crustal deformation, and more secure than steel, more reliable. 3, with no tackiness UHMWPE pipeline capacity and anti-stick Teflon rather, conventional materials are generally not less than 9 in PH medium are scaling, which is not to scale, the roughness of the inner wall sixth steel, and there are self-lubricating, flow resistance is small, medium flow rate exceeds 2.3-4.6 m / s, it is difficult to form scale. 4, strong corrosion resistance UHMWPE is a saturated structure of molecules, chemical stability, the ability of corrosion and erosion of most organic solvents. In natural light, the aging life of more than 50 years. 5, good self-lubrication UHMWPE pipe in the field of tribology was evaluated as "cost / performance ideal" friction materials. This product contains a waxy substance, the friction coefficient of only 0.07-0.11 Flow capacity 50% higher than steel, so that long-term low-voltage transmission system flow state. 6, tensile yield strength and tensile strength at break superb high molecular weight polyethylene pipe heat distortion temperature ten degrees higher than ordinary plastic, cold brittleness temperature is almost no limit, combined with a 100% elongation, can be in a wide temperature range, withstand large pipe stress, absorb impact load and shut down the water pressure fluctuations occur. Maximum elongation at break of 400%. Crustal subsidence may have a greater stretch without breaking, to avoid accidents. 7, good hydrophobicity UHMWPE pipe does not swell in water, the water absorption is less than 0.01%. 8, easy to install ultra high molecular weight polyethylene pipe per unit length accounts for only one-eighth of steel, handling and transportation, installation more convenient. Flanged simple. Fully embodies the "energy saving, environmental protection, economic and efficient" superiority. 9, excellent low temperature resistance unique ultra high molecular weight polyethylene pipe low temperature resistance, impact resistance and abrasion resistance at -269 ℃ when basically unchanged. Is currently the only engineering plastics can work at temperatures close to absolute zero. 10, long life Theoretically, high tube life of up to several hundred years, buried for 50 years, to reduce the mechanical properties only about 20%. Other features, as well as ultra-high-energy-absorbing tube, suction noise, antistatic, for neutron shielding capability, light weight, easy machining, coloring and other prominent features. Working pressure: PN0.6-2.6MPa Flange Standard: figuring method UHMWPE pipe on HG20593-97 genuine market standards. First, the proportion of law: the proportion of pure ultra-high molecular weight polyethylene (UHMW-PE) products between 0.93-0.95, lighter than water and can float on water; add back fill material ultra high molecular weight polyethylene (UHMW-PE) product, its specific gravity will change (increase). Second, the temperature method: pure ultra-high molecular weight polyethylene (UHMW-PE) products at 200 degrees Celsius is not melted, not deformed, but become soft; add back fill material ultra high molecular weight polyethylene (UHMW -PE) products, at 200 degrees Celsius there will be deformed. Third, the visual method: pure ultra-high molecular weight polyethylene (UHMW-PE) products smooth surface, uniform, smooth, shiny black; filler material added back ultra high molecular weight polyethylene (UHMW-PE) products, surface roughness, and color gray, dark color. Fourth, flanging method: pure ultra high molecular weight polyethylene (UHMW-PE) products flange end face rounded, uniform, smooth; add back fill material of ultra high molecular weight polyethylene (UHMW-PE) products flange end surface cracks, and the dregs phenomenon occurs when heating flange.