China Round to Square Welded Pipe Units Without Roller Changing

Round to square pipe mill without roller changing introduction:
Round to square pipe mill without roll changing is our company new product. During the diameter changing, the whole complete forming line does not need to change the roller in compared with before precise forming roller changing. Sizing section bears the responsibility for the work from round to square. Our mill adopt the newest technology. The sizing section from round to square does not need the roller changing too. This kind of technology not only avoids the large investment on the roller, which is suitable for the large and medium mill. When the diameter changing , the roller adjustment is complete automatic. It only needs to input the diameter, pipe wall thickness, material and other parameter in the IPC. Then, the entire roller will be automatically adjusted to the right position. Then, the machine can be started directly to have the production. A lot of time can be saved for the roller changing to let the variety diameters pipesproduction in little quantity to be possible. It improves the machine efficiency and machine starting rate. Besides, automatic adjustment can make the adjustment accurate, decrease the error on the manual adjustment, improve the qualified rate, and the economic efficiency.
The square pipe manufacture can be divided to two kinds of technology. One is direct to square cold rollforming technology in general use for the domestic market. Because this kind of technology can use one kind of roller to produce many kinds of square pipe, which saves the lots of roller investment. But the pipes from this kind of technology have the defect, such as unevenness of four angles in square pipe and unfull on round angle. Therefore, this kind of pipe basically is not accepted in the foreign market. It is no problem for sale in domestic market. But export is the problem. Another kind of technology is round to square pipe technology, which is generally used in the foreign market. The round angle of the pipe from this kind technology is full and four angles are even. The outlook of pipe is pretty beautiful. But this kind of mill also has the certain fault. Due to the limited technology, each kind of pipe needs to change one set rollers. The investment of rollers is large and the roller changing takes time and energy. Our company adopts the newest technology, which solves the problem. Our machine only needs to change the welding roller. It is no need to change other rollers. The roller changing adopts computer control. This kind of technology not only avoids the large investment on the roller, but also can produce high quality square pipe. This mill is the best square pipe mill. This kind of mill can manufacture high standard exported square & rectangle pipe, the same as structure pipe.
Recommend mill model:
1, 90x90~200x200 square pipe mill,wall thickness range: 2-12mm,Max. material: Q345B;
2, 100x100~250x250 square pipe mill,wall thickness range: 2-14mm,Max. material: Q345B
3,120x120~300x300 square pipe mill,wall thickness range: 3-16mm,Max. material: Q345B
4, 150x150~350x350 square pipe mill,wall thickness range: 3-18mm,Max. material: Q345B
5, 200x200~400x400 square pipe mill,wall thickness range: 4-20mm,Max. material: Q345B
6, 250x250~450x450 square pipe mill,wall thickness range: 4-22mm,Max. material: Q345B
7, 300x300~500x500 square pipe mill,wall thickness range: 5-25mm,Max. material: Q345B
Recommend mill production process
Coil loading-Uncoiling-Leveling-Steel cutting and welding-Accumulator-Precise leveling-Forming-HF welding-Stable steel pulling-Water cooling-Sizing( round to square)-Fly saw sizing cutting off-Square pipe automatic stacking-Packing-Pipe storage
Technolog:
The Round Pipe mill Without Roller Changing Research
The round pipe mill without roller changing is our developed newest product. During the diameter changing, the whole complete forming line does not need to change the roller in compared with before precise forming roller changing. Then, the investment for the roller can be saved, which is suitable for the large and medium diameter machine. During the diameter changing, the adjustment of roller is automatic too. It only needs to input the diameter, pipe wall thickness, material and other parameter in the IPC. Then, the entire roller will be automatically adjusted to the right position. Then, the machine can be started directly to have the production. A lot of time can be saved for the roller changing to let the variety diameters pipes production in little quantity to be possible. It improves the machine efficiency and machine starting rate. Besides, automatic adjustment can make the adjustment accurate, decrease the error on the manual adjustment, improve the qualified rate, and the economic efficiency.
Round to Square Pipe Mill Without Roller Changing Research
Round to square pipe mill without roll changing is our company new product. During the diameter changing, the whole complete forming line does not need to change the roller in compared with before precise forming roller changing. Sizing section bears the responsibility for the work from round to square. Our mill adopt the newest technology. The sizing section from round to square does not need the roller changing too. This kind of technology not only avoids the large investment on the roller, which is suitable for the large and medium mill. When the diameter changing , the roller adjustment is complete automatic. It only needs to input the diameter, pipe wall thickness, material and other parameter in the IPC. Then, the entire roller will be automatically adjusted to the right position. Then, the machine can be started directly to have the production. A lot of time can be saved for the roller changing to let the variety diameters pipes production in little quantity to be possible. It improves the machine efficiency and machine starting rate. Besides, automatic adjustment can make the adjustment accurate, decrease the error on the manual adjustment, improve the qualified rate, and the economic efficiency.
The square pipe manufacture can be divided to two kinds of technology. One is direct to square cold rollforming technology in general use for the domestic market. Because this kind of technology can use one kind of roller to produce many kinds of square pipe, which saves the lots of roller investment. But the pipes from this kind of technology have the defect, such as unevenness of four angles in square pipe and unfull on round angle. Therefore, this kind of pipe basically is not accepted in the foreign market. It is no problem for sale in domestic market. But export is the problem. Another kind of technology is round to square pipe technology, which is generally used in the foreign market. The round angle of the pipe from this kind technology is full and four angles are even. The outlook of pipe is pretty beautiful. But this kind of mill also has the certain fault. Due to the limited technology, each kind of pipe needs to change one set rollers. The investment of rollers is large and the roller changing takes time and energy. Our company adopts the newest technology, which solves the problem. Our machine only needs to change the welding roller. It is no need to change other rollers. The roller changing adopts computer control. This kind of technology not only avoids the large investment on the roller, but also can produce high quality square pipe. This mill is the best square pipe mill.
Stainless Clad Pipe Welding Mill Research
The stainless clad pipe welding mill can be divided into two kinds of model according to the supply state. The supply state for thin and narrow sheet is the coil, so the mill is continuous type. The supply state for thick and wide sheet is the sheet type, so the mill is intermittent type. In normal condition, the continuous mill can be suitable to the pipe bellowing diameter 325mm and thickness 10mm. The intermittent mill can be suitable to the pipe of diameter 325 to 914mm and thickness 10mm to 25mm.
Continuous mill firstly opens the coil and levels the steel. The steel is milled to special groove online. After forming machine, the steel is formed to round pipe state. Then, the pipe state is welded to the stainless clad pipe after several welding art crafts.
Intermittent production line firstly levels and edge mills the metallurgy combined double metal sheet. Then, each sheet will enter to the forming machine. Using our patent technology-single sheet forming machine and the physical function of the roller, the clad sheet is bended to the pipe state. Then, the pipe is welded with our company patent welding device. It adopts total automatic flexible forming technology in precise control. All the forming section does not need to change the roller, which largely saves the roller investment and decreases the investment on the large diameter mill.
Straight seam submerged-arc pipe welding mill research
Straight seam submerged-arc pipe welding mill is the newest patent product in our company, which adopts the coil as the raw material to manufacture pipe in high thickness and strength. . Compared with ERW, the quality and energy consumption of Straight seam submerged-arc pipe is easier to be controlled, and is welded better and low consumption. The welding seam of Straight seam submerged-arc pipe overcomes the shortages of long welding seam and difficult inspection on spiral welding seam after inbuilt. Compared with UOE and JCOE, the investment cost and production cost are low. The quality of Straight seam submerged-arc pipe welding seam is the best in all welding seam technology. Straight seam submerged-arc pipe is the most reliable. there is no circular interface welding seam on the pipe, which is easy to weld, inspect, maintain and repair. The pipe produced by the mill just covers most pipes which are currently used by oil, gas casing. The mill also has a good market prospect. The technician in our company starts the research after the serious analysis and deep understanding. Because this mill is the first one in the world and pipe diameter 711mm is the largest one then & the most difficult part. Our technicians in my company make the bold experiments, detailed design, and repeat tries. Fortunately, 219-711 straight seam submerged-arc welding machine is successfully developed at the end of 2012.
Delivery date
8-month delivery after the contract takes effect, and according to your special requirement.
Term of Payment
Within 7 days after the contract is signed, 30% of the total amount of the contract will be prepaid, and the contract will take effect;
the contract will be effective for two months, paying 20% of the progress payment; before delivery, 50% of the total contract amount will be paid.
Following is not within Seller's supply scope
1) All cables.
2) Foundation and other components (flat horn, diagonal horn, foundation cover, pit cover, pipes and passages, adjustment pads, cable ducts and conduit covers, handrails for safety protection, pre-buried Steel plates, pipes and grounding, etc.).
3) For pipes, brackets and assembly materials from the TOP point to the equipment (from the main hydraulic station to the valve station; from the valve station to the hydraulic piping between the mechanical equipment, from the TOP point to the pneumatic piping of each equipment, from the TOP point to The steam and cooling water piping of the equipment, the wastewater piping from the equipment to the processing equipment, the buyer provides a detailed design of all TOP point pipe joints. The pipe on the seller's equipment is the scope of supply of the seller. The pipe interface point is 1000mm away from the outer edge of the equipment, and is equipped with a pair of flanges.
4) Steel structural parts (work platforms, brackets and stairs for containerized electrical control rooms, etc.) The seller provides basic data for this structure.
5) Safety gates and guards (safety guards for doors, grilles and rotating parts, etc.).
6) Inspection of the customer load basis based on the data of the seller's basic drawings.
7) All the required basic work, such as fences, cable trenches, cable trench covers, entrance ladders, work platforms, etc. The seller only provides a base map of the load.
8) Basic waterproof measures.
9) All metal parts in concrete, including hydraulic pipeline embedded parts, cable ducts, cable trays, trench cover and pit cover.
10) The user side organizes commissioning, trial operation, equipment optimization and acceptance of the test operator.
11) Hydraulic oil and lubricating oil (including initial filling) used during installation, commissioning and trial operation, on-site installation and commissioning of auxiliary switchboard power supply, compressed air, etc.
12) Materials used for trial operation, commissioning and acceptance, such as coils, bundled straps and other consumable materials.
13) Cable tray and its installation.
14) Safety devices that are not part of the production line but need to be installed in the production line area, including safety bars, work platforms, and other required isolation devices.
15) Hydraulic oil and lubricating oil used in each single machine.
Note: The equipment handover point is in principle within 1 meter of the supply equipment, all pipelines of all electrical, pneumatic and cooling water systems within 1 meter are within the scope of supply. The following items are not included in the scope of supply:
Mounting horns for the installation of equipment, threading pipes;
Supply of energy media such as turbid water, net water, and compressed air.
Hydraulic oil and lubricating oil used in each single equipment
Installation and Commissioning
The seller provides on-site installation and guidance services. The seller's visas, round-trip airfare, meals, and accommodation are the responsibility of the buyer, and the seller's staff will pay USD 100 per person per day.
Training
The training is carried out in two steps.
Step 1: During the installation process, the seller's technicians will train the buyer's personnel on the structure, principle, maintenance, maintenance, operation, etc. of the equipment.
Step 2: After the test run, the seller's technicians will conduct 10 days of intensive training for the buyer's personnel until the buyer's personnel are fully capable of operating the equipment.
Shanxi Haina H-Tech Precision Machinery Co., Ltd