15230713671
AOCHENG
Product Center
产品类型：Straight seam elbow
产品型号：114
产品厚度：sch40
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Straight seam elbow
Carbon steel straight seam elbow manufacturers mainly according to the customer ordered model and material and caliber and wall thickness to make customers ordered straight seam elbow products, straight seam elbow material is divided into carbon steel, alloy steel, stainless steel and so on.
The permeability at the corrosion defect of the carbon steel straight joint elbow is far smaller than that of the butt welding elbow. The butt welding elbow is magnetized under the action of the external magnetic field. When the butt welding elbow is sunken, most of the magnetic force lines pass through the steel pipe, and the magnetic force lines are evenly distributed. When the butt welding elbow is defective, the magnetic field line is bent, and a part of the magnetic field line leaks out of the surface of the steel pipe. The existence of defects can be determined by detecting the leakage flux from the surface of the magnetized butt welding elbow. Acoustic wave method: Acoustic wave detection method is to use the pulse reflection principle of sound wave to measure the thickness of the tube wall after corrosion. The process is formed by self-propagating centrifugal casting method, which mainly uses the chemical reaction of the substance itself, exothermic combustion produces high temperature, and syntheses the new substance in the spreading process of combustion wave. During detection, the probe transmits acoustic pulse vertically to the inner wall of the butt welding elbow. The probe first receives the reflected pulse from the inner surface of the pipe wall, and then the acoustic probe receives the reflected pulse from the outer surface of the pipe wall. The distance between the pulse and the reflected pulse on the inner surface reflects the thickness of the pipe wall.
Straight seam elbow models are complete, quality assurance, after-sales guarantee, because of the reason of the mask the company supports online consultation. 24 hours welcome your inquiry and order.
沧州奥广机械设备有限公司
手 机：15230713671
传 真：0317-6896271
Q Q：540235112
邮 箱：15230713671@163.com
地 址：河北省沧州市盐山县
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