Oil casing is a large-diameter pipe that acts to fix the wall or bore of oil and gas oil wells. The casing is inserted into the wellbore and fixed with cement to help the wellbore separate the rock formations and prevent the wellbore from collapsing while ensuring the circulation of drilling mud to
In terms of the welding process, the welding method of spiral welded pipe and straight seam steel pipe is the same, but the straight seam welded pipe will inevitably have many T-shaped welds, so the probability of welding defects is also greatly increased, and the welding residue at the T-shaped wel
1. To prevent erosion due to heating, the welding should not be too long, about 20% less than the carbon steel electrode, the arc should not be too long, the layers are cooled quickly, and a narrow weld bead is appropriate.2. The hardening of stainless steel pipe fittings after welding is fast, whic
Product name: SSAW steel pipeMaterial: Carbon steelSize: 813x9.53x6000mmStandard: API 5L/ASTM A53Quantity: 5000 tonsMany cooperations have given the customer full confidence in THREEWAY STEEL.
Important components of alloy steel and thick parts must be preheated before welding.The purpose of spiral steel pipe preheating before welding is as follows:(1) Preheating can slow down the cooling rate after welding so that hydrogen diffuses in the weld metal and escapes to avoid cracking caused b
The construction of cement mortar fabric should usually be carried out after the spiral steel pipe is laid, the pressure test is qualified, and the soil is compacted according to the planning requirements. Due to the small rigidity and thin wall of the steel pipe, the pipeline must be in a stable st
Welding and cutting of the spiral steel pipe structure are inevitable in the application of the spiral steel pipe. Because of the characteristics of the spiral steel pipe itself, compared with ordinary carbon steel, the welding and cutting of the spiral steel pipe have its particularity, and it is e
Product name: Galvanized steel pipeMaterial: Carbon steelSize: 100*2*6000mmStandard: API 5LQuantity: 2000 tonsMany cooperations have given the customer full confidence in THREEWAY STEEL.
First, safety precautions1. It is strictly forbidden to stand under the primary straight-through valve of the steam boiler pipeline drain. 2. There is no one within 1 meter in the diameter of the outlet of the drainpipe at each drain point. 3. There is no one within 50 meters of the outlet direction
