Q460b straight
Q460b large diThe pipeline installation sequence shall be adopted according to the principle of zoning and subsystem. First the lower level, then the upper level, and then the difficulty. In principle, the pipes connected to the machine are arranged from inside to outside to reduce the impact of welding stress on the installation accuracy of the machine. The joints of indoor and outdoor pipes shall be left outdoors. Q345B thick wall continuous pipe is a widely used carbon steel material. Q345B thick wall continuous pipe with thickness greater than 10mm is widely used in drainage engineering, sewage pipeline, dredging pipeline, construction pipeline, delivery related requirements can be compared with other products.
The convex hull on the surface of the crimp roll shall be treated. Before repeated processing, the equipment surface shall be treated to prevent the convex hull steel plate with abnormal roll surface from causing pits.
.Executive standard for steel plate rounding: structural tube gb8162-2008 fluid tube gb8163-2008 low and medium pressure boiler tube gb3087-2008 high pressure boiler tube GB5310-2008 special tube for chemical fertilizer GB 79-2000 petroleum cracking tube gb9948-88 steel plate rounding production process: tube blank & mdash& mdash; Inspection & mdash& mdash; Peel & mdash& mdash; Inspection & mdash& mdash; Heating & mdash& mdash; Perforation & mdash& mdash; Pickling & mdash& mdash; Grinding & mdash& mdash;Air drying & mdash& mdash; Welding head & mdash& mdash; Cold drawing & mdash& mdash;& mdash;& mdash; Pickling and passivation & mdash& mdash; Inspection & mdash& mdash; Cold rolling & mdash& mdash; Degreasing & mdash& mdash; Cutting head & mdash& mdash; Air drying & mdash& mdash; Internal polishing & mdash& mdash; External polishing & mdash& mdash; Inspection & mdash& mdash; Identification & mdash& mdash; Process flow inspection of finished product packaging industrial pipe & mdash& mdash; Peel & mdash& mdash; Inspection & mdash& mdash; Heating & mdash& mdash; Perforation & mdash& mdash; Pickling & mdash& mdash; Mushroom trimming & mdash& mdash;Air drying & mdash& mdash; Welding head & mdash& mdash; Cold drawing & mdash& mdash; Solution treatment & mdash& mdash; Pickling & mdash& mdash; Pickling and passivation & mdash& mdash; Formula of steel plate rolling weight: [(outer diameter wall thickness) * wall thickness] * 0.02466 = kg / M (weight per meter)
Thickness detection thickness detection is very simple, as long as the caliper is OK. Like other pipes.
.If the particle size of straight seam coiled pipe is too small, the adhesion and impact strength of the coating will be reduced. For serious internal pitting corrosion, it can not only rely on the high-strength impact of large particles of rinse agent, and the rate of rinsing agent can be greatly improved. Generally, the particle size of metal particles is 2 - 9mm, and the particle size of metal sand is 1 - 2mm, of which 3 - 5mm is a common component. The sand shot ratio is usually 4 to 9.
Application of hot rolled steel pipe: the disadvantage of changing hot rolled steel pipe into seamless steel pipe with fixed specification and model is another major feature of hot rolled steel pipe. In the production process, hot rolled steel pipe has been widely used, especially in large equipment such as oil cylinder production, bridge construction, engineering column, large drum and so on. Save materials and labor for the above enterprises,45# thick wall welded pipe, reduce production costs, improve the market competitiveness of finished products, and promote the development of enterprises to a certain extent. Continuous pipe is committed to producing all kinds of circumferential seam, longitudinal circumferential continuous pipe and penstock,Q550b welded pipe, and is reformed on the basis of the same specification and model of traditional pipe rolling equipment. 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 8-100mm.
During pipe rolling, the surface damage of steel plate shall be prevented. The parts with serious scratches must be polished for transition and the wall thickness of the polished parts shall not be less than the design wall thickness.
Chinese Name: welded pipe English Name: welded tube, 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 welded pipe definition: the pipe formed by crimping the plate and strip into a pipe barrel with specified shape and size, preparation and processing (level discipline); Plastic processing technology (level discipline) what are the main raw materials of electric welded steel pipe?
Executive standard for steel plate rounding: structural tube gb8162-2008 fluid tube gb8163-2008 low and medium pressure boiler tube gb3087-2008 high pressure boiler tube GB5310-2008 special tube for chemical fertilizer GB 79-2000 petroleum cracking tube gb9948-88 steel plate rounding production process: tube blank & mdash& mdash; Inspection & mdash& mdash; Peel & mdash& mdash; Inspection & mdash& mdash; Heating & mdash& mdash; Perforation & mdash& mdash; Pickling & mdash& mdash; Grinding & mdash& mdash;Air drying & mdash& mdash; Welding head & mdash& mdash; Cold drawing & mdash& mdash;& mdash;& mdash; Pickling and passivation & mdash& mdash; Inspection & mdash& mdash; Cold rolling & mdash& mdash; Degreasing & mdash& mdash; Cutting head & mdash& mdash; Air drying & mdash& mdash; Internal polishing & mdash& mdash; External polishing & mdash& mdash; Inspection & mdash& mdash; Identification & mdash& mdash; Process flow inspection of finished product packaging industrial pipe & mdash& mdash; Peel & mdash& mdash; Inspection & mdash& mdash; Heating & mdash& mdash; Perforation & mdash& mdash; Pickling & mdash& mdash; Mushroom trimming & mdash& mdash;Air drying & mdash& mdash; Welding head & mdash& mdash; Cold drawing & mdash& mdash; Solution treatment & mdash& mdash; Pickling & mdash& mdash; Pickling and passivation & mdash& mdash; Formula of steel plate rolling weight: [(outer diameter wall thickness) * wall thickness] * 0.02466 = kg / M (weight per meter)
The distance between the two longitudinal slits of the reel assembly shall be greater than 100mm. The distance between the outer wall of the branch pipe and the weld shall not be less than 50mm.
Focus on Development.The wall thickness of coiled pipe like coiled pipe is under 20mm and the outer diameter is 450-3000mm. It is made of steel plate by direct rolling, welding, forming, butt joint and rebar removal. Coil pipe has the characteristics of short processing time, rapid delivery and low cost. The rolling pipe is mainly used for pipes, billboards, columns, etc.
In short, the use standard of coiled steel pipe is very important, and the above points can be reasonably explained. For the information of our rolled steel pipe, let's simply say so much today. If you need it, you can directly consult our manufacturer.
Deviation reel as follows (unit: mm): nominal diameter & amp; amp; lt; 800 800 to 1200 1300 to 1600 1700 to 2400 2600 to 3000 perimeter Deviation & plusmn; 5± 7± 9± 11± 13 ovality is 1% of the outer diameter, 4 6 8 10 and no more than 4 steel plate coils have standards. At present, we carry out construction according to the acceptance of standard GB / t19793-92.
Weld size has a great influence on the quality of rolled steel pipe. Weld size mainly includes welding process parameters, flux flow, flux process performance and weld forming.
market price.When the nominal diameter is greater than or equal to 600mm, back welding shall be carried out in the pipe.
It is characterized by high precision. However, the grating ruler is expensive and difficult to maintain, which has a great impact on dust and field vibration.
The offer is in progress. Welcome new and old customers to consult. Prevent surface damage of steel plate. Thick wall coil and large diameter coil are mainly made of carbon steel, Q19 q23 q34 16Mn etc. coil is a kind of welded pipe product with simple and flexible process. If the length required by the customer is special, two or more steel pipes must be connected. Therefore the process of this welded pipe is flexible, convenient and applicable. The disadvantage is that it can not be produced by mechanized line. The level of automation and mechanization is not high,16Mn large diameter thick wall welded pipe, which requires a lot of manual processing. The main problem of coiled pipes is welding. Thick wall coiled pipes can be delivered as long as they can be inspected by flaw detection. The relevant requirements are broader than other products.
.The distance between the longitudinal joints of two pipes shall be greater than 100 mm. The distance between the outer wall of the branch pipe and the weld shall not be less than 50mm.
Generally, the wall thickness of coiled pipe is 20mm and the outer diameter is 450-
Circumferential deviation of coiled pipe, pipe groove processing and joint pair: when the pipe wall thickness is less than 6mm, it is type I weld; when the pipe wall thickness is greater than 6mm, it is type V weld; For pipes with diameter greater than 600mm and wall thickness greater than 6mm, the bottom of the pipe shall be sealed at the bottom of the pipe; In addition to the lap joint, the other type of gas coil pipe is continuous and solid V-groove butt welding. If the weld is found to be defective, the weld must be re welded. Rewelding shall not be more than twice. Long term supply of hot rolled steel pipe, large diameter thick wall rolling pipe, thick wall straight seam rolling pipe, steel casing, rolling pipe factory has complete products and excellent quality, The price is favorable. The longitudinal weld of the winding pipe with the same cylindrical part shall not be greater than the spacing between two longitudinal joints shall not be less than 200mm. The arc length of the winding pipe calibration template shall be 1 / 6 ~ I of the circumference of the pipe / the gap between the template and the pipe. Let me introduce the steel plate production standard winding pipe. During the winding process, the surface of the circuit board shall 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.