Q460b large diameter reelThe cause of the failure and its analysis and troubleshooting

announcer:hp709HP180518493 release time:2022-03-13 16:17:32

In order to make you better understand the installation method of coiled pipe, the following coiled pipe factory will introduce the installation method of coiled pipe: pipe hoop is used, and raw silk belt, white hemp wire, pipe expander, handle and other tools are used to connect coiled pipe and pipe fittings. This method may need repeated debugging due to the great influence of human factors. In addition, when the materials of coiled pipes and pipe fittings are different, due to their different thermal coefficients, leakage may occur when cold and hot water are used alternately.?

The detection of thick wall coiled pipe is mainly ultrasonic flaw detector, and the longitudinal weld on the same cylinder section of coiled pipe should not be more than two. Generally, the production process of thick wall coiled pipe can be divided into cold drawing and hot rolling. The production process of cold-rolled seamless steel pipe is generally more complex than hot rolling. Roll sizing test shall be carried out for the pipe blank first. If the surface does not respond to the crack, the round pipe shall be cut by a cutter and cut into a blank with a length of about meters. However, when entering the annealing process, acid shall be used for annealing, and attention shall be paid to whether a large number of bubbles are generated on the surface. If a large number of bubbles are generated, it indicates that the quality of steel pipe can not meet the response standard. In appearance, the cold-rolled seamless steel pipe is shorter than the hot-rolled seamless steel pipe, and its wall thickness is generally smaller than that of the hot-rolled seamless steel pipe, and there are not too many burrs in the diameter. The thick wall coiled pipe is a powerful manufacturer quotation, honest operation, genuine and of the same quality. The thick wall coiled pipe is available from stock, with complete specifications,. The group of butt welds of coiled pipe shall be flush. When the nominal diameter is greater than, back sealing welding shall be carried out in the pipe. During pipe rolling processing the surface damage of the plate shall be prevented. The factory has perfect steel plate coil, thick wall coil, T-shaped welding coil, 16Mn coil, Q345B coil, special-shaped coil and other production lines. It is a coil factory that can produce large coils of various specifications and wall thicknesses. Our thick wall coil and large coil products are sold to large enterprises all over the country and are deeply trusted and praised by customers. Steel plate coil, thick wall coil, coil, t-welded coil, flaw detection welded coil, 16Mn coil and Q345B coil shall be carried out in strict accordance with ISO9001:2000 international quality management standards.

.The straightening of thick wall coil pipe is to enter the inlet roller table of the straightener from the upstream roller table. When the head of thick wall coiled pipe is sensed by the middle position sensing element of the inlet roller table, the roller table decelerates; When the head of the thick wall coiled pipe is sensed by the position sensing element at the end of the inlet roller table, the inlet roller table section falls, and the closing delay of the inlet quick opening cylinder starts timing; When the pipe head enters the middle position of the inlet straightening roll, the inlet quick opening cylinder is closed, the thick wall coil is bitten in, the professional hot-rolled steel pipe, large-diameter thick wall coil, thick wall straight seam coil, steel casing, the performance of the coil factory is stable, safe, reliable and maintenance free, and the technical level has reached the domestic level and the advanced level of similar products in the world. At the same time the roller table at the inlet section falls. The second is the setting of quick opening cylinder delay. When the pipe head enters the middle position between the intermediate roll and the outlet roll, the quick opening cylinders of the intermediate roll and the outlet roll are closed one after another, and the rolling pipe, Q235B rolling pipe, Q345B rolling pipe, large-diameter thin-wall rolling pipe, large-diameter thick wall rolling pipe, stainless steel rolling pipe, L360 rolling pipe and 16Mn rolling pipe ensure the quality. Your satisfaction is our pursuit! Welcome to inquire. Thick wall coil enters the straightening process.

The butt joint of coiled pipe (with the same wall thickness) shall not exceed 10% of the wall thickness and not more than 2mm.

.Sealing and sealing shall be carried out in the pipeline. The wall thickness of general coiled pipe is 20mm and the outer diameter is 450-3000mm. The production process of general thick walled coiled pipe can be divided into cold drawing and hot rolling directly from the production process of steel plate rolling and general thick walled coiled pipe. The production process of cold-rolled seamless steel pipe is generally more complex than hot rolling. Roll sizing test shall be carried out for the pipe blank first. If there is no response crack on the surface, the round pipe shall be cut by cutting machine and cut into a blank with a length of about meters. However when entering the annealing process, and attention shall be paid to whether a large number of bubbles are generated on the surface. If a large number of bubbles are generated acid shall be used for annealing, it indicates that the quality of steel pipe can not meet the response standard. In appearance the cold-rolled seamless steel pipe is shorter than the hot-rolled seamless steel pipe, and its wall thickness is generally smaller than that of the hot-rolled seamless steel pipe, but the surface is brighter than that of the thick wall seamless steel pipe. There is not too much roughness on the surface, and there are not too many burrs in the diameter. The thick wall coiled pipe is a powerful manufacturer, quotation, honest operation, genuine and of the same quality. The thick wall coiled pipe is available from stock, with complete specifications,. Welding, forming, butt joint and pipe rolling, with short processing time,Q355b reel, fast delivery and low cost, are mainly used for hot-rolled thick wall coils such as pipes, billboard and columns. The thickness of hot-rolled thick wall coils is generally greater than 20mm and the outer diameter is 450-3000mm. The hot-rolled thick wall coils are rolled under the heating of steel plates Welding, forming, deburring, defect detection and delivery. Sometimes the wall thickness is relatively thick and secondary heating is required. The feature is that the outer diameter tolerance is small Uniform wall thickness. It is important that the hot rolled thick wall coil will not damage the properties of raw materials. The disadvantages of hot roll thick wall rolling pipe are long processing time and. Professional hot-rolled steel pipe, large-diameter thick wall coil, steel casing, coil factory inspection is strict, quality assurance. Preferential activities are in progress welcome to consult. Hot-rolled thick wall coil is widely used: cylinder block, hydraulic pressure, bridge, roller table, wall thickness and thick wall seamless steel pipe, which is mainly used for machining, coal mine, hydraulic steel and other purposes. Classification of thick wall seamless steel pipe & mdash& mdash; Hot rolled thick wall seamless steel pipe, cold rolled thick wall seamless steel pipe, cold drawn thick wall seamless steel pipe, thick wall seamless steel pipe, stainless steel seamless steel pipe for pipe jacking structure (GB / t14975-199) are widely used in corrosion-resistant pipes and structural members in chemical, petroleum, light textile, food, machinery and other industries, and stainless steel hot rolled (, end face deviation, straightness, etc.


Q460b large diameter reelThe cause of the failure and its analysis and troubleshooting



The rolled pipe shall meet the specified arc degree, end face deviation, straightness, etc.

Spiral pipe not only has high quality, such as higher flame retardancy, higher Vicat temperature, higher volume resistivity, higher strength and smaller friction coefficient. At the same time, it also has the functions of bending and coil. It is specialized in products and renewable resources business, including hot-rolled steel pipe, large-diameter thick wall coiled pipe, thick wall straight seam coiled pipe, steel casing and coiled pipe factory

Main technical measures for low hardening trend

quality standard.The misalignment of butt weld of coiled pipe shall not exceed 20% of wall thickness and shall not exceed 2mm. Butt joint of two pipes with small adjacent deviation value.

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.

1 carbon structural steel: q215-a, q215-a. & middot; F,Q215-B,Q215-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 thick wall coil is made of steel plate. Long term coil, Q235B coil, Q345B coil large diameter thin wall coil, large diameter thick wall coil, stainless steel coil, L360 coil, 16Mn coil, 20 old brands, with price advantages and quality! Thick wall coil can be divided into two types: hot coil and thick wall coil.


Q460b large diameter reelThe cause of the failure and its analysis and troubleshooting



The wall thickness of hot coil thick wall continuous pipe is generally greater than 20mm, and the outer diameter range is 450-3000mm. Hot rolled thick wall continuous pipe is rolled, welded, formed, reinforced, flaw detected and delivered under the condition of steel plate heating. Sometimes the wall thickness is very special and needs secondary heating. It is characterized by small outer diameter tolerance and uniform wall thickness. The main reason is that the hot rolled thick wall continuous pipe will not damage the performance of raw materials. The disadvantages of hot rolled thick wall continuous pipe are long processing time and high cost. Hot rolled thick wall pipe is widely used: oil cylinder, hydraulic, bridge, roll, etc. Compared with seamless steel pipe, thick wall continuous pipe has the disadvantages of low cost, fast delivery, breaking the fixed specification of seamless steel pipe and so on. Thick wall coil is welded by bending steel plate or steel strip. According to the weld form, it is divided into straight welded pipe and spiral welded pipe. It can be divided into ordinary welded pipe, galvanized welded pipe, oxygen blowing welded pipe, wire sleeve, metric welded pipe, idler pipe, deep well pump pipe, automobile pipe, transformer pipe, welded thin-wall pipe, welded special-shaped pipe and spiral welded pipe. It is a special product manufacturing enterprise integrating research, development and service. It has long been specialized in hot-rolled steel pipe, large-diameter thick wall rolling pipe,Q345B large diameter welded pipe, thick wall straight seam rolling pipe, and is reformed on the basis of the same specification and model of traditional rolling equipment. The function of parameters of coil welded steel pipe equipment is improved by 30%, which fills the gap that can not be produced by traditional rolling equipment. It can produce steel pipes with diameter of more than 400 and wall thickness of 8-100mm. The main materials are q23 q34 20, 16Mn, etc. the product standards are GB / t50205-200, GB / t3092-2001, etc. the products are widely used in petroleum, natural gas transmission, pile driving, urban water supply heating, gas supply and other projects.

packing.Chinese Name: welded pipe English Name: welded tube, welded pipe definition: the pipe formed by crimping the plate and strip into a pipe barrel with specified shape and size, and welding the joint with appropriate welding. Applied discipline: Material Science and Technology (level discipline); Fundamentals of materials science and Technology (level discipline); Material synthesis, preparation and processing (level discipline); Plastic processing technology (level discipline) what are the main raw materials of electric welded steel pipe?

Hot coil thick wall pipe rolling process before hot coil thick wall pipe processing, you must be familiar with the technical requirements such as paper and process material properties, and determine whether cold coil, warm coil or hot coil.

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, strong winding force 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 the cutting length of Shenzhen thick wall coiled pipe is optional and adjustable. To operate by two people. 16Mn thick wall coiled pipe is durable and stable in use. Shenzhen thick wall coiled pipe is easy to operate. According to the safety and health standards, the rolling pipe is committed to producing all kinds of rolling pipes and steel penstocks with circumferential seams and longitudinal rings, 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, 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

.The function of parameters of pipe rolling equipment is improved by 30%, which fills the gap that can not be produced by traditional steel rolling equipment. It can produce steel pipes with diameter of more than 400 and wall thickness of 4-100mm. The main materials are q23q3420, 435cimo and 42cimo, 16 manganese and 16 manganese capacity. Generally speaking, cold-rolled sheet can be used for pipe rolling. Product standards: GB / t50205-200, GB / t3092-2001, etc.

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, 35 and 45, which are referred to as ordinary steel pipes for short, and 16Mn is between ordinary steel pipes and alloy steel pipes. This material is called low alloy steel pipe, the steel pipe materials are 27SiMn, 12Cr1MoV 10crmo9, 15CrMo and 35CrMo, 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.

The wall thickness of general coiled pipe is 20mm and the outer diameter is 450-3000mm. It is made of steel plate by direct rolling, welding and forming. The production process of general thick walled coiled pipe can be divided into cold drawing and hot rolling. The production process of cold rolled seamless steel pipe is generally more complex than hot rolling. Roll sizing test shall be carried out for pipe blank first. If there is no response crack on the surface, the round pipe shall be cut by cutting machine, Cut into blanks about meters in length. However, when entering the annealing process acid shall be used for annealing, it indicates that the quality of steel pipe can not meet the response standard. In appearance, the cold-rolled seamless steel pipe is shorter than the hot-rolled seamless steel pipe, and its wall thickness is generally smaller than that of the hot-rolled seamless steel pipe, but the surface is brighter than that of the thick wall seamless steel pipe. There is not too much roughness on the surface, and there are not too many burrs in the diameter. The thick wall coiled pipe is a powerful manufacturer, honest operation, genuine and of the same quality. The thick wall coiled pipe is available from stock, with complete specifications,. Docking and strengthening. Coil pipe processing time is short and delivery is fast Low cost. The rolling pipe is mainly used for pipes, billboards, columns, etc.