DUCTILE IRON PIPES C Class DN600
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Ductile Iron Cast Pipe is without any defects compare with tradition casting tech, which has many advantages particularly as follow:
(1) High density. In the "vertical upward casting" process, the melt iron of centre liquid column in center crystallizer is continuously feeding for volume shrinkage caused by condensation tube at outer circumference , which lead to be free of shrinkage porosity.
(2) High purity. When melt iron pouring, the mixed impurities such as gas, dross, sand grain which are lighter than melt iron could be eliminated at furnace mouth, its impossible to enter into the crystallizer through the channel, so the melt iron into the crystallizer is very pure.
(3) Strength with toughness. The cooling speed provided by continuous crystallizer is 30 times than sand casting and 5 times than centrifugal casting, and doesn't produce white iron, the eutectic cell volume of continuous cast iron is one eighth to one tenth compare with traditional cast iron. The density of graphite nodule in ductile iron can reach 300-700 pcs/mm2. Therefore, all reason above improve the strength and toughness of continuous cast iron.
(4) Free machining. The high speed cooling make the hardening phase (such as boride, steadite) not appear like reticular, massive or thick, but diffuse like fish bone and pane in shape, moreover, there are tiny graphite flakes inlaid hardening phase. It's free machining in BrinellHardness the range of 250-300HB. However, the Brinell Hardness of 250 is top limit to common metal materials.
(5) Uniform composition of tube wall. The convection mixing of liquid column caused by marching type drawing in crystallizer make the composition of tube wall well-distributed, and concentration gradient very little.
(6) High productivity. To the wall thickness of tube under 10mm, the speed of continuous casting is 1 meter/min, to the wall thickness of tube under 20mm, the speed of continuous casting is 0.5 meter/min, which is high efficiency that centrifugal or other casting tech couldn't reach.
- Q:Classification of cast iron pipes
- Continuous cast iron straight pipe:Continuous cast iron pipe, namely continuous casting gray cast iron pipe, suitable for water and gas pressure fluid delivery.
- Q:Ductile iron gears are generally treated without heat treatment
- Heat treatment must be necessary, generally annealed first to machine, after quenching or nitriding treatment
- Q:How does ductile iron pipe perform in areas with high soil settlement?
- Ductile iron pipes perform well in areas with high soil settlement due to their inherent strength and flexibility. Their ability to withstand soil movement and settlement helps prevent pipe damage or failure. Additionally, ductile iron pipes are designed with joints that allow for some movement, further reducing the risk of cracks or breaks. Overall, ductile iron pipes are a reliable choice for areas prone to high soil settlement.
- Q:Can ductile iron pipe be repaired if it gets damaged?
- Yes, ductile iron pipe can be repaired if it gets damaged. Various repair methods such as welding, clamping, and epoxy lining can be used to fix cracks, leaks, or other types of damage in ductile iron pipes. However, the repair method depends on the nature and extent of the damage, and it is recommended to consult with experts or professionals for proper repair procedures.
- Q:Are ductile iron pipes suitable for underground storage tanks?
- Ductile iron pipes are indeed suitable for underground storage tanks. Ductile iron is a strong and durable material that is highly resistant to corrosion and can withstand the pressure and weight of being buried underground. These pipes are widely used in various underground applications, including water and sewage systems, as they have excellent tensile strength and can handle both internal and external loads. Moreover, ductile iron pipes have a long service life, often exceeding 100 years, making them a reliable choice for underground storage tanks. They are also resistant to ground movement and can adapt to soil settling or shifting, ensuring the integrity and stability of the storage tank system. Additionally, ductile iron pipes provide excellent flow characteristics due to their smooth internal surface, preventing the accumulation of debris or sediment that could potentially clog the system. This makes them an ideal choice for storing various liquids or substances. Overall, the strength, durability, corrosion resistance, and long service life of ductile iron pipes make them a suitable and reliable option for underground storage tanks.
- Q:Are ductile iron pipes suitable for use in wastewater pumping stations?
- Indeed, in wastewater pumping stations, ductile iron pipes exhibit suitability. Ductile iron, a resilient and robust substance, possesses the capacity to endure the demanding circumstances and corrosive properties of wastewater. With its exceptional resistance to corrosion and ability to withstand high-pressure settings, ductile iron pipes represent an optimal selection for the conveyance of wastewater within pumping stations. Notably, these pipes boast an extended lifespan and necessitate minimal maintenance, thereby reducing operational expenses and guaranteeing dependable and effective wastewater transportation.
- Q:How do ductile iron pipes perform in freeze-thaw cycles?
- Ductile iron pipes demonstrate exceptional performance in freeze-thaw cycles due to their material properties. With high tensile strength and excellent impact resistance, ductile iron is highly resistant to the stresses caused by freezing and thawing. Unlike other materials, these pipes can withstand the expansion and contraction during temperature changes without cracking or breaking. One of the primary reasons for the success of ductile iron pipes in freeze-thaw conditions is their capacity to absorb and dissipate stresses. The material's high ductility allows for slight deformation under stress, releasing pressure and preventing pipe damage. This characteristic ensures that the pipes can endure repeated freezing and thawing cycles without compromising their structural integrity. Furthermore, ductile iron pipes feature a durable and protective coating, such as cement mortar lining or polyethylene encasement, which further enhances their resistance to freeze-thaw cycles. These coatings offer an extra layer of protection, preventing direct contact between water and the iron and reducing the risk of corrosion. Moreover, ductile iron pipes have an extended service life, often exceeding 100 years, thanks to their inherent strength and resistance to various environmental factors, including freeze-thaw cycles. The pipes' ability to endure these cycles without significant damage ensures the reliability and durability of water distribution systems, even in regions prone to freezing temperatures. In conclusion, ductile iron pipes are highly dependable and excel in freeze-thaw cycles. Their high tensile strength, impact resistance, capacity to absorb stresses, and protective coatings make them the preferred choice for water distribution systems in areas with harsh winter conditions.
- Q:Can ductile iron pipes be used in nuclear power plants?
- Yes, ductile iron pipes can be used in nuclear power plants. Ductile iron is a type of cast iron that has improved flexibility and strength compared to traditional cast iron pipes. These pipes are known for their durability, corrosion resistance, and ability to withstand high pressure and temperature conditions. In nuclear power plants, where there is a need for a reliable and robust piping system to transport water, coolant, and other fluids, ductile iron pipes can be a suitable choice. However, it is important to note that the specific requirements and regulations of each nuclear power plant should be considered before selecting the pipe material. Proper testing, certification, and compliance with nuclear industry standards should be ensured to guarantee the safe and efficient operation of the power plant.
- Q:How much is the installation fee of the 400 largest ductile iron pipe?
- Ductile iron pipes mainly called centrifugal ductile iron pipe, it has the properties of nature, iron and steel, excellent corrosion resistance, good ductility, good sealing effect, simple installation, mainly for municipal, industrial and mining enterprises, water supply, gas, oil etc.. Water supply pipe is the first choice, with high cost performance.
- Q:What is the excavation width of ductile iron pipes with diameters greater than 1400?
- Then, according to the soil characteristics, different slopes are calculated, and the width of the excavation is calculated according to the depth and slopeIf the soil is soft, high water content and easy to collapse, the excavation width will be wide, otherwise the slope will be steep and the excavation width will be narrow
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DUCTILE IRON PIPES C Class DN600
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- Loading Port:
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