How To Choose The X-ray Flaw Detector?
x-ray flaw detector is mainly used to detect machining parts with or without defects, such as inclusion, white spots, sand holes, cracks, pores, etc., so as to determine whether the workpiece is qualified.The X-ray flaw detector is a device that uses X-ray beam transmission test pieces produced by X-ray tubes to detect internal defects.So how to choose the type of flaw detector?
How to choose the X-ray flaw detector is according to the need to purchase the right, want to an economic and practical X-ray flaw detector, we must choose the X-ray flaw detector correctly.General selection of X-ray flaw detector to consider the X-ray tube focus size, the shape of the workpiece and the penetration capacity.
The penetration capacity of the X-ray flaw detector depends on the capacity of the X-ray detector, both the tube voltage of the X-ray detector, the harder the X-ray, the higher the tube voltage, the larger the energy, the stronger the penetration capacity, the penetration capacity is proportional to the square of the tube voltage. In addition, under the same tube voltage, it is also related to the density and other properties of the material of the workpiece being tested, that is, it is related to the X-ray attenuation ability of the workpiece being tested.For heavy metals such as steel and thick workpiece, due to its strong X-ray attenuation ability, it should choose higher tube voltage X-ray flaw detector; And for aluminum, magnesium and other light metals and thinner workpiece, can choose low tube voltage X-ray flaw detector.
For circular workpiece, such as boiler or container on the girth weld, should first consider the choice of circumferential exposure radiographic flaw detection machine, in order to improve the efficiency of the workpiece, reduce labor intensity, reduce radiation damage.
For the workpiece is small, easy to move, can choose mobile flaw detector (fixed) X-ray detector, and the workpiece is tall or heavy equipment, because it is not convenient to move, so you can choose portable X-ray detector.
