The standard name of the hot -dip galvanized steel pipe product is "low -voltage fluid transportation of hot -dip galvanized welding steel pipe". It is the inner and outer hot -dip galvanized inner and outer heat galvanized on the basis of welded steel pipes, so that the inner and outer wall of the steel pipe has a zinc layer, which greatly improves the anti -corrosion performance of the steel pipe. Real about 20 times that of ordinary steel pipes. The hot -dip galvanized steel pipe is used as a conveying pipe or metal structure. It is widely used in fire engineering, natural gas transportation, petroleum processing industry, water conservancy engineering buildings, and residential buildings. This product refers to the use of the US standard ASTM A53, the British bid BS1387, the national standard GB/T3091 and the national standard GB/T13793, and should not be exposed in non -neutral environments such as acid, alkali, salt.
Pipeline technical requirements
(1) The surface of the tube -end to the groove section is flat, there is no bump without rolling marks.
(2) The center of the groove should be concentric with the tube wall, and the width and depth of the groove should meet the requirements.
(3) The grooved grooves that are processed by the tank machine shall not damage the galvanized steel pipe.
The hydraulic test hydraulic test of the galvanized pipe should be performed in the black tube, and the vortex detection can also be used instead of the hydraulic test. Test pressure or vortex detection comparison sample size shall comply with the regulations of GB 3092.
Steel mechanics performance is an important indicator of ensuring the final performance (mechanical performance) of steel, which depends on the chemical composition and thermal treatment system of steel. In the steel pipe standard, according to different use requirements, stretching performance (tensile strength, yield strength or yield point, elongation point) and hardness, toughness indicators, and high and low temperature performance required by users.
Processing of galvanized steel pipe grooves
1. Use the cutting machine to cut the steel pipe on demand length, and the incision should be flat.
2. Set the steel pipe rack that needs to be processed on the groove machine.
3. Place the horizontal ruler on the steel pipe and flatten the horizontal ruler to keep the steel pipe horizontally.
4. Paste the end surface of the steel pipe and the roller tightly.
5. Start the groove machine, and slowly press the pound to make the upper wheel evenly roll the steel pipe until the setting groove is stopped.
6. Check the depth and width of the groove with a glyphors. After confirming that meet the standard requirements, remove the pound to the load and remove the steel pipe.
