The working principle of the steel pipe roll forming machine:
The strip steel is introduced into the pipe welding machine through the feeding machine, and the strip material is extruded through the roller, and then the argon arc welding mixed gas is used to protect the welding and rounding process, cut by the cutter mechanism, and then the steel pipe of the required length is output.
Then the steel pile will be straighten by the straightener. Spot welding machine is used for spot welding connection between strip steel heads.
The steel pipe roll forming machine is a comprehensive set of equipment that successively welds strip steel into pipes and straightens it into finished products.
The main production process of the steel pipe roll forming machine is as follows:
Feeding frame–forming–welding–leveling of inner welding seam–grinding–coarse sizing and straightening–bright annealing furnace–precise sizing and straightening–on-line steel tube eddy current testing–cutting to length –Finished product rack.
The structure composition of the steel pipe roll forming machine:
(1) Feeding rack: Purchase steel belt according to the specifications of the pipe, put the steel coil on the loading rack, and introduce the forming part.
(2) Forming section: rolling forming using welded pipe mold
(3) Welding machine: welding
(4) Grinding box: external welding seam
(5) Sizing and straightening section: fine adjustment of pipe diameter
(6) Cutting table: metal hydraulic cutting or grinding wheel cutting
(7) Cutting frame: automatic cutting
Possible problems in the process of producing pipes:
Defects such as strains, wrinkles, nail scales, fish scales, round tube roundness, and irregular surface are often produced during the pipe producing process.
The characteristics of the steel pipe roll forming machine:
The advantages of steel pipe roll forming machine:
The application of steel pipe roll forming machine:
The Maintenance of steel pipe roll forming machine:
There are three aspects needing to be noticed in the use of the steel pipe roll forming machine:
For this, before welding, all kinds of rust, all kinds of grease and moisture on the steel pipe should be removed. And for the electrode used, it should also be used selectively.
At this time, the problem we know is that although the thin plate can be bent at 180 degrees, when using the steel pipe roll forming machine, it would be better for us to choose a steel pipe or steel plate that is more than twice thick. The advantage of this is that it can reduce the crack of the bending surface.
In such processing, it is relatively easy to generate friction heat. For such problems, it is necessary to adopt steel pipes with good pressure resistance and heat resistance. After the forming process is completed, the grease on the surface should also be removed instantly.
The classification of steel pipes:
Steel pipes can be classified according to the rolling process, whether there are seams and cross-sectional shapes.
According to the rolling process classification, steel pipes can be divided into hot-rolled steel pipes and cold-rolled steel pipes.
According to whether the steel pipe has seams, the steel pipe is divided into seamless steel pipe and welded steel pipe.
Among the welded steel pipe, commonly used welded steel pipes can be divided into three types according to the types of welds: high-frequency welded pipes, straight-seam submerged arc welded pipes, and spiral submerged arc welded pipes.