20# straight seam welded pipeThe performance of price increase is commendable

announcer:hp709HP180518493 release time:2021-11-01 09:09:12

Rolled pipe is divided into straight seam rolled pipe and T-shaped welded pipe. The pipe rolling can meet the market demand for less number and more models of welded pipes. It can be used for pipe pile, column, conveying fluid, pressure vessel, etc. The longitudinal weld of the same barrel section of high pressure and high temperature continuous pipe shall not exceed two courses, and the spacing between the two longitudinal welds shall not be less than 200mm.

If the top wall thickness of the pipe is equal to the bottom wall thickness, the formula can also be simplified as: (top inner diameter + bottom inner diameter) * 1 / 2 * 0.02466 * pipe length = weight inspection of conical special-shaped coil. 16Mn thick wall coil adopts advanced technology. Jbq6xvzt52aj5 Shenzhen thick wall coil has good use characteristics and performance in use and can show important value and role. The specific functions and values of 16Mn thick wall coil are as follows: it can coil suitable quantitative and wide steel strip and Shenzhen thick wall coil into parallel coils with required inner diameter and wall thickness; The roller is driven by active stepless speed regulation, with small mandrel deformation, high pressure of Shenzhen thick wall winding pipe, high power transmission efficiency, good winding strength and flat appearance; With self-locking function, the swing arm can be automatically locked without shaking after angle adjustment; With automatic cutting device, the incision is neat without warping angle, and is reformed on the basis of similar specifications and models of traditional rolling equipment. The function of improving the parameters of the rolling and welding steel pipe equipment by 30% fills the gap that the original traditional rolling equipment can not produce. It can produce steel pipes with a diameter of more than 400 and a wall thickness of 8-100mm in Shenzhen. Materials mainly include q23 q34 20#, 16 manganese, 16 manganese capacity, etc. Product executive standard: GB / t50205-200, GB / t3092-2001, etc. The products are widely used in petroleum, chemical industry, natural gas transportation, pile driving and urban water supply, heating, gas supply and other projects. The process of designing brand inspection standard thick wall straight seam coiled pipe is generally rolled. If the diameter required by the customer is particularly large, it is difficult for Shenzhen thick wall coiled pipe like machinery and equipment. Shenzhen thick wall coiled pipe needs to be rolled. After the steel plate is rolled, Shenzhen thick wall coiled pipe will weld two rolled steel pipes, The weld formed by Shenzhen thick wall coiled pipe is also called t-weld. Sometimes, two steel plates need to be rolled and welded for thick wall straight seam steel. D7z3xjb87v21w, so two welds may appear in one pipe body, also known as double welds. Thick wall straight seam coiled pipe has a wide range of materials. As long as it is a steel plate that can be ordered in a steel plant, X ahzpdqsqu7 is basically OK. The main problem of the product is the welding quality. The welding quality directly determines the quality of the product. Shenzhen thick wall rolling pipe is the main step in thick wall rolling pipe. Suitable for buildings, bridges, dams

.Rolling circle: the steel plate heated to 850 ℃ ~ 900 ℃ is rolled by hot rolling machine to form steel plate. The common alloy materials for steel plate rolling pipe include: metal intermetallic alloy, alloy in which each component forms a compound with each other, & gamma; - brass and & epsilon; - Brass) composed of copper and zinc, etc

The process of thick wall straight seam coiled pipe is generally rolled. If the diameter required by the customer is particularly large, it is difficult for general machinery and equipment, so it is necessary to use coiled pipe. First, after the steel plate is rolled, then weld the two rolled steel pipes. The weld is also called T-welding. Sometimes the large diameter thick wall straight seam steel needs to roll and weld the two steel plates, Therefore there may be two welds on a pipe body, also known as double welds. Thick wall straight seam coiled pipe has a wide range of materials. As long as it is a steel plate that can be ordered in a steel plant, it is basically OK. The main problem of the product is the welding quality. The welding quality directly determines the quality of the product, which is the main step in the thick wall rolling pipe. It is suitable for columns for bearing steel structures such as buildings, bridges, dams and offshore platforms, super long-span building structures and electric pole tower and mast structures requiring wind resistance and earthquake resistance.

.Finish machining is performed below, and after shot peening, the scales on the inner and outer surfaces of the elbow are removed, and both ends are processed with grooves to facilitate welding.

The longitudinal weld of the same barrel part of the coiled pipe shall not be greater than 2.

Extend the length of the part: 566, divide it into 24 equal parts, symmetrical, and the length of each bisector from the middle to the side is: 11 110 106 10 93 84 75 66 57 0, 50 44 40 39 2.


20# straight seam welded pipeThe performance of price increase is commendable



Steel plate materials mainly include Q235, Q345, 20, 45, 35cimo and 42cimo with 16 manganese and 16 manganese capacity. Generally, cold rolled plate can be used for pipe winding. Like oil, chemicals, natural gas transportation, piling and urban water supply, heating, gas supply and other projects can be customized! The required thickness and length can be adjusted as required! The rolling pipe weld is a double-sided weld. Two longitudinal welds are allowed, and the weld spacing exceeds 300 mm. The welding appearance and quality standard shall not be lower than the level standard in the welding specification.

In continuous pipe production, expanding and piercing method is widely used. Large diameter pipe rolling is drilled in the center of the blank φ 20 ~ 40mm guide hole, and then push the stamping rod from the guide hole to expand the guide hole to make the hollow blank extend reversely in the die. The capillary perforation precision is high, and the capillary wall thickness is large, so the perforation precision is high.

The production process of thick wall welded pipe can be divided into cold rolling, cold rolling and hot rolling. The steel pipes are made of 10, 20 35 and 45, and 16Mn is between ordinary steel pipes and alloy steel pipes. This material is called low alloy steel pipe which are referred to as ordinary steel pipes for short, the steel pipe materials are 27SiMn, 12Cr1MoV, 10crmo9, and the stainless steel pipe is collectively referred to as alloy steel pipe. According to the use, it is divided into structural seamless steel pipe; Seamless steel pipe transportation; Seamless steel pipe for boiler; High pressure seamless steel pipe for boiler; High pressure seamless steel pipe for fertilizer equipment; Seamless steel pipe for geological exploration; Jointed steel pipe; Seamless steel pipe for petroleum cracking; Marine seamless steel pipe; Cold drawn cold rolled precision seamless steel pipe; Various alloy pipes.

manufacturer.The pipeline installation sequence is based on the principle of sub area and sub system, with small diameter, from the lower layer to the upper layer, from difficult to easy, from the pipe gallery to the equipment. In principle, the pipeline connected with the machine is configured from the inside to the outside to reduce the impact of welding stress on the installation accuracy of the machine. The interface between indoor and outdoor pipelines shall be left outdoors. Q345B thick wall coiled pipe is a kind of material in carbon steel and is widely used. The thickness of Q345B thick wall coiled pipe is generally more than 10mm, which is widely used in drainage engineering, sewage pipeline, dredging pipeline, construction pipeline, etc. Q345B thick wall coiled pipe is a welded pipe product, and the process in the welded pipe is relatively simple and flexible. This type of steel pipe usually has no inventory and is processed by user. If the quantity is small, the raw materials are not good. The main problem of Q345B thick wall coiled pipe is welding. As long as it is possible, the delivery related requirements can be compared with other products.

Clean the iron oxide scale falling off in the process of plate drum to prevent the iron oxide scale from bonding and the surface of steel plate.

1 carbon structural steel: q215-a, q215-a. & middot; F,Q215-BQ215-B· F,Q235-A,Q235-A· F,Q235-B,Q235-B· F. Q235-c ordinary carbon steel: B2 BY2 B2F by2f B3 by3 B3F by3f a2ay2 a2f ay2f A3 ay3 A3F ay3f2 high quality carbon steel: 10 15 20 transmission shaft steel 3 low alloy structural steel: 123mn 16Mn 19mn 08ti 10ti15ti4 special purpose steel plates are stacked in the open air to prevent rain from causing steel plates. The oxide scale falling off the surface of steel plates is easy to turn into blocks or clusters and adhere to steel plates or crimping rollers, the coiled pipe forms pit defects.


20# straight seam welded pipeThe performance of price increase is commendable



Flame cutting and plasma cutting are commonly used for sheet metal blanking in our factory. The equipment used includes manual cutting, copier, semi-automatic cutting machine and NC cutting machine. Manual blanking is arbitrarily large compared to other cuts Flexible and convenient, no special supporting cutting equipment is required.

Quality risk.The main problem of thick wall coiled pipe is welding. As long as flaw detection can be carried out, the requirements related to delivery are wider than other products. The detection of thick wall coiled pipe is mainly ultrasonic flaw detector.

Meet the requirements of American Petroleum Institute standards.

Let me introduce the standard coil produced by steel plate. In the process of rolling, the surface of the circuit board should be protected from damage. Parts with severe scars shall be ground to achieve transition, and the wall thickness of the ground part shall not be less than the design wall thickness.

.The steel plate rolling pipe we call the steel plate rolling pipe is actually a process. The following small series will describe the process sequence: plate inspection, blanking, beveling, assembly spot welding, campus, perimeter and roundness deviation inspection, welding weld inspection, pipe test and delivery. Professional hot-rolled steel pipe, large-diameter thick wall rolling pipe, thick wall straight seam rolling pipe, steel casing, rolling pipe factory and other special products, old brands, price advantages and guaranteed quality. These processes can not be less.

Columns for bearing steel structures such as offshore platforms, super long-span building structures and electric pole tower and mast structures requiring wind resistance and earthquake resistance. Inspection equipment maintenance and packaging strategy: 16Mn thick wall coil adopts PLC automatic system, and all parts of Shenzhen thick wall coil focus on panel operation. The cutting length of 16Mn thick wall coil adopts photoelectric induction, which runs smoothly, Shenzhen thick wall coiled pipe has good cutting synchronization performance. 16Mn thick wall coiled pipe has different application ranges: length: 0-1400mm, thickness: 2-15mm, diameter: 20-200mm, application: 3 inches x2 4x, application voltage: 380V 50Hz. It is used according to the specified parameters and range to ensure that it can play an important role and value in use. The packaging process of new product 16Mn thick wall coil includes main processes such as filling, wrapping and sealing, as well as related pre and post processes, such as cleaning, stacking and disassembly. The process of 16Mn thick wall rolling pipe shall be strict, and it shall be produced in the correct way and principle. In addition, the process of 16Mn thick wall coiled pipe also includes measuring or stamping on the package. The use of mechanical packaging products can improve productivity, reduce labor intensity, meet the needs of large-scale production, d7z3xjb87v21w and meet the requirements of cleanliness and hygiene. The production process of rolling pipe is round pipe blank → Heating → Perforation & rarr; Roll cross rolling, continuous rolling or → Off pipe & rarr; Sizing (or reducing) → Cooling → Straightening & rarr; Hydrostatic test (or flaw detection) → Mark & rarr; According to different production warehousing supply indicators can be divided into hot-rolled pipe, cold-rolled pipe, cold drawn pipe, pipe, etc. quality management? Hot rolled seamless tubes are produced on the automatic tube rolling mill. The solid tube blank is cut into the required length by removing the surface defects. The Shenzhen coiled tube is centered on the end face of the perforated end of the tube blank, and then sent to the heating furnace for heating. It is perforated on the piercing machine. At the same time, it rotates and advances continuously. Under the action of the roll and top head a cavity called rough tube is gradually formed inside the tube blank, Then it is sent to the automatic pipe mill for continuous rolling, and the wall thickness is adjusted by the whole machine. The Shenzhen coiled pipe is sized by the sizing machine to meet the specification requirements. The production of hot-rolled seamless steel pipe by the continuous pipe mill is relatively advanced. If you want to obtain seamless pipe with smaller size and better quality, 888yixtfrfsbu Shenzhen coil pipe must be cold rolled and cold drawn or a combination of the two. The cold rolling is usually carried out on the roll mill. The steel pipe is rolled in the annular pass composed of variable section circular hole groove and fixed conical plug. The cold drawing is usually carried out on the single chain or double chain cold drawing machine, that is, the heated pipe blank is placed in a closed cylinder, and the perforated rod and rod move, Professional hot-rolled steel pipe, thick wall straight seam rolling pipe, steel casing, rolling pipe factory has advanced technology, strict testing, more affordable price and more preferential. Welcome to consult. Make the parts extruded from the smaller die hole. This method can produce the steel pipe with smaller diameter. Work course standard requirements & amp; amp; quot;Standard requirements: the Executive Standards of hot-rolled thick wall coil product line are: GB / t50205-200, GB / t3092-2001, etc.

Be able to show important value in different industries and fields. When the coiled pipe is greater than 600mm, two longitudinal welds are allowed, and the spacing shall be greater than 200mm.