Reducing misjudgment of high-pressure boiler pipe eddy current testing

Release Time :

2022-10-27 13:38

Reducing high-pressure boiler pipe eddy current testing misjudgment several key factors:

(1) Coil eddy current testing and inspection center roller consistency in relation to the accuracy inspection rate high pressure boiler tube inspection system of the entire product, the coil center alignment requirements than the sample through holes circumferentially poor sensitivity ≤2dB, signal to noise ratio ≥ 8dB.
(2) If it is found the instrument signal is mixed at the time of commissioning, then the damage to the comparative sample coil or bad and should be replaced.
(3) The pinch roller clamp adjustment principles: to promote the pinch rollers and high pressure boiler tube is driven not just appropriate, to ensure stable concentricity testing, reducing the impact of false positives.

With the above high pressure boiler tube eddy current testing method misjudgment rate can be controlled within a minimum range, in particular the master of abnormal signal processing method of the gram to ensure the smooth conduct of the production site.

Reducing misjudgment of high-pressure boiler pipe eddy current testing

The welding process used for submerged arc welded straight seam steel pipe is submerged arc welding technology, which adopts filler welding and particle protection flux submerged arc. The diameter of production can reach 1500mm. LSAW is the English abbreviation of submerged arc welded straight seam steel pipe. The production process of submerged arc welded straight seam steel pipe includes JCOE forming technology and coil forming submerged arc welding technology. When the diameter is large, two steel plates may be used for rolling, which will form the phenomenon of double welds.

2022-10-27

Reducing misjudgment of high-pressure boiler pipe eddy current testing

Reducing high-pressure boiler pipe eddy current testing misjudgment several key factors: (1) Coil eddy current testing and inspection center roller consistency in relation to the accuracy inspection rate high pressure boiler tube inspection system of the entire product, the coil center alignment requirements than the sample through holes circumferentially poor sensitivity ≤2dB, signal to noise ratio ≥ 8dB.

2022-10-27

Reducing misjudgment of high-pressure boiler pipe eddy current testing

Argon reduces the burning loss of alloy elements and obtains denseand high-quality welded joints; The protection can isolate the adverse effects of oxygen, nitrogen and hydrogen in the air on arcand molten pool.

2022-10-27

Reducing misjudgment of high-pressure boiler pipe eddy current testing

Submerged arc welding technology is ideal for important applications such as pipelines, pressure vessels and tanks, rail manufacturing and large buildings. There are the simplest form of monofilament, double-filament structure, tandem double-filament structure, and multi-filament structure.

2022-10-27

Reducing misjudgment of high-pressure boiler pipe eddy current testing

1.What is welding power supply? Weldingpower supply refers to the equipment with electrical characteristicssuitable for welding in the electric welding machine and provides theelectric energy required for welding, which is called welding powersupply.

2022-10-27

Reducing misjudgment of high-pressure boiler pipe eddy current testing

Gas welding is a welding method that uses the flame generated by themixed combustion of combustible gas and combustion supporting gas asthe heat source to melt the weldment and welding material and realizeatomic bonding. Electric welding uses electric energy to pressurize,heat, or both, with or without filler material to achieve atomicbonding of weldments.

Shandong Xinghan Aluminum Industry Group Co., Ltd.

Tel : +8615562508601
Email : cnxh005@xhsteelgroup.com
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