Lead sheet welding precautions: Use a symmetric welding method, so as not to cause deformation between two lead plates. To timely clean up the dregs, lead plate welding will inevitably have some dregs, not timely cleaning will affect the effect. If the lead plate has welding defects, it cannot be put aside. It should be polished with grinding wheel to reduce the influence of defects. After the radiation proof lead sheet is welded, the appearance of the weld should be checked after cooling. If the two lead plates do not fully fuse, fill in the gap. In this way, to ensure that the radiation protection lead sheet is used in the machine room, will not cause radiation leakage.

Because the wavelength of x-rays is extremely small, it can penetrate substances with large interatomic gaps, so the penetrating ability of x-rays is related to the density of materials. The density of iron is much lower than that of lead, so the effect of blocking the passage of X-rays is not as good as that of lead sheets. When the thickness of the shielding material is greater than 1/4 of the wavelength, the electromagnetic wave will have a better shielding effect, and the high frequency can be shielded, but the low frequency has no effect.

X-rays were discovered by the German physicist Roentgen. Nowadays, it is widely used in medical and internal medicine. X-rays used in medical imaging are produced by X-ray machines. It works by applying a voltage of 100kV or 300kV to an X-ray tube. The radiation produced in the process can penetrate 5~50mm steel plates.

X-rays are not detected by the five senses, so excessive exposure to X-rays in unshaded Spaces can cause radiation damage to the human body. Therefore, from the perspective of the health of patients and medical practitioners, Clinic X must be sheltered. X-ray shielding materials are not only lead sheets, but also concrete, steel plates, radiation-proof glass and other materials. But overall, the shading effect of lead is the best in these materials.