Which pipe bending machines and operational difficulties are used in pipeline installation
The installation process of pipelines involves many techniques. Therefore, in pipeline installation engineering, a large number of bends with various angles are required, such as 90 ° and 45 ° bends, B-shaped bends (back and forth bends), curved bends (curved bends), square expansion joints, etc. Processing tools and corresponding construction processes can be selected based on the conditions of the construction site and the size of the bent pipe diameter, which can be processed on site or standardized in the processing plant.
Tools required for pipeline installation: manual pipe benders, pulley pipe benders, electric or hydraulic pipe benders, fully automatic pipe benders, blow dryers, molds, steel rulers, ovens, workbenches, acetylene generators, welding and cutting tools, etc.
Bending conditions of the pipe bending machine: Construction drawings and standard drawings have been prepared and reviewed. There is a construction site and workbench that meets safety requirements. All pipes with qualified certificates have been brought into the site. Technical briefing has been carried out, familiarize oneself with the specifications, dimensions, and angles of each processing part, and prepare material labels. When using a manual pipe bending machine to bend, the operator's face must avoid the bent steel pipe to prevent the pipe bending machine from slipping and injuring people.
When using fire to simmer and bend, it is prohibited to stand at the pipe mouth to prevent injury from blasting. The position of the coal furnace should be in contact with the fire department, and the flammable materials surrounding it must be eliminated. The fire must be extinguished before work to prevent accidents.
The acetylene generator must be equipped with a pipe bending machine with a safety device to prevent backfire. The safety chain, oxygen cylinder, oxygen meter, and welding and cutting tools are strictly prohibited from being contaminated with grease. The oxygen cylinder should have an anti-seismic rubber ring.
Like any machine, there may be various problems during use, such as springback at the bend corner of the bend, wrinkling, protrusions, and dragging marks in various bending processes
1. When fully automatic starting, be careful not to enter the area where the arm rotates and sweeps. When working on a CNC lathe, all personnel are prohibited from entering the indoor space where the rotating arm and pipes have been swept. The hydraulic transmission system of the CNC lathe uses YA-N32 general gear oil, which can be disassembled and replaced multiple times over the years under normal circumstances. The oil filter must be cleaned together.
2. When adjusting the grinding tool, the adjuster should press the button themselves to carry out the adjustment. One person should not adjust it on the CNC lathe alone, and other people should actually operate it on the control box. When adjusting the CNC lathe or driving an empty car, the core rod should be removed. The hydraulic transmission system must also pay attention to the size of the working pressure in practical operation.
3. Another strictly prohibited method is to manually push and push at a speed that exceeds the angular velocity of the rotating edge of the grinding tool. Usually, after a period of application, the tension level of the transmission chain should be checked to maintain the same tightness of the upper, lower, left, and right transmission chains.