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HG50 welded pipe unit is a special equipment for the production of straight seam welded pipe and cold-formed steel in metallurgy, construction, transportation, machinery, vehicle and other industries. It takes the steel strip of specifications as the raw material and produces the round pipe and square rectangular pipe of required specifications through the cold-formed forming and high-frequency welding methods. The unit in the digestion and absorption of similar equipment at home and abroad on the basis of bold innovation, and widely listen to the user's opinion, design and manufacturing, equipment operation is economical and reliable, good stability. It is suitable for low carbon steel and low alloy steel, the material must be σb≤520MPa, σs≤345MPa.
The process flow of HG50 welded pipe production line is: feeding and unwinding → straight head → clamping and leveling → cutting and butt welding → lofting material storage → forming → welding → removing outer burr → cooling → sizing → fixed size flying saw (cutting) → roller table → blanking (packing) → finished products warehousing
What is the production process of HG50 welded pipe unit?
Straight welded pipe production process is simple, high production efficiency, low cost, rapid development. The strength of spiral welded pipe is generally higher than that of straight welded pipe, and the welded pipe with larger diameter can be produced with narrower billet, and the welded pipe with different diameter can also be produced with the same width billet. But compared with the same length of straight seam pipe, the weld length is increased by 30~100%, and the production speed is lower.
Therefore, the welded pipe of small caliber mostly adopts straight seam welding, and the welded pipe of large caliber mostly adopts spiral welding.
1. Welded steel pipe for low pressure fluid transportation (GB/T3092-1993), also known as the general welded pipe, commonly known as black pipe. It is a welded steel pipe used for conveying water, gas, air, oil and heating steam and other general low pressure fluids and other purposes. The wall thickness of steel pipe is divided into ordinary steel pipe and thickened steel pipe. The pipe end is divided into two forms: steel pipe without screw (light pipe) and steel pipe with screw. The specification of the steel pipe is indicated by the nominal diameter (mm), which is the approximate value of the inner diameter. Traditionally, welded steel pipes used for low-pressure fluid transportation are used as raw pipes of galvanized welded steel pipes used for low-pressure fluid transportation in addition to directly transporting fluids.
2. Galvanized welded steel pipe for low pressure fluid transportation (GB/T3091-1993), also known as galvanized electric welded steel pipe, commonly known as white pipe. It is used for conveying water, gas, air oil, heating steam, warm water and other general low pressure fluid or other uses of hot dip galvanized welding (furnace welding or electric welding) steel pipe. The wall thickness of steel pipe is divided into ordinary galvanized steel pipe and thickened galvanized steel pipe; The pipe end is divided into galvanized steel pipe without thread and galvanized steel pipe with thread. The specification of the steel pipe is indicated by the nominal diameter (mm), which is the approximate value of the inner diameter. It is customary to use inches, such as 11/2, etc.
3. Ordinary carbon steel wire bushings (GB3640-88) are steel tubes used to protect wires in industrial and civil buildings, installation machines and equipment and other electrical installation projects.
4. Straight seam electric welded steel pipe (YB242-63) is a steel pipe whose weld is longitudinally parallel to the steel pipe. Usually divided into metric welded steel pipe, welded thin-wall pipe, transformer cooling tubing and so on.
5. Spiral seam submerged arc welded steel pipe (SY5036-83) for pressurized fluid transportation is a spiral seam steel pipe used for pressurized fluid transportation, which is made of hot-rolled steel strip coil as the tube billet, usually warm spiral forming and welded by double-sided submerged arc welding method. Steel pipe bearing capacity is strong, good welding performance, after a variety of strict scientific inspection and testing, reliable use. Large diameter steel pipe, high conveying efficiency, and can save the investment of laying pipelines. A pipeline mainly used to transport oil and gas.
6. Spiral joint high-frequency welded steel pipe (SY5038-83) for pressure fluid transportation is a hot-rolled steel strip coil as a tube billet, often temperature spiral forming, welding by high-frequency lap welding method, used for pressure fluid transportation of spiral joint high-frequency welded steel pipe. The steel pipe has strong bearing capacity, good plasticity, easy to weld and process forming; After a variety of strict and scientific inspection and testing, the use of reliable, large diameter steel pipe, high transmission efficiency, and can save the investment of laying pipelines. It is mainly used for laying pipelines to transport oil and gas.
7. General spiral seam submerged arc welded steel pipe (SY5037-83) for low-pressure fluid transportation is made of hot-rolled steel strip coil as tube billet, often warm spiral forming, using double-sided automatic submerged arc welding or single-side welding method for water, gas, air and steam and other general low-pressure fluid transportation submerged arc welded steel pipe.
8. General low pressure fluid transport spiral joint high frequency welded steel pipe (SY5039-83) is made of hot rolled steel strip coil as tube billet, often temperature spiral forming, the high frequency lap welding method is used for general low pressure fluid transport spiral joint high frequency welded steel pipe.
9. Pile helical weld steel pipe (SY5040-83) is made of hot-rolled steel strip coil as pipe billet, often warm spiral forming, and made of double-sided submerged arc welding or high-frequency welding. It is used for steel pipe for foundation piles of civil building structures, wharves, Bridges and so on.
Auxiliary equipment
Technical flow:
Steel coil→Double head uncoiler→Shear and welding→Accumulator→Forming section→H.F. induction welding→Deburr frame→Cooling unit→Sizing unit and straightener→Flying saw under computer control→Run out table→Inspecting→Packing→Warehouse
Parameters:
| Model | HG50 |
| Tube diameter | 19-76 mm |
| Tube wall thickness | 0.6-3.0mm |
| Welding speed | 20-75m/min |
| Main motor power | 110 kw |
| High frequency power | 200 kw |
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