Lead _ Jinan open door made (certified) _ Lead door

 When the X-rays through the object, the amount of different substances on the X-ray absorption is proportional to the atomic number of the substance, but also with the thickness of the material is almost proportional. Lead the atomic number of 82, are higher than the average metal atomic number, (see Mendeleev periodic table) for greater absorption of X-rays. In addition, the lead of cheap, easy to process, it became the manufacture of X-ray protective door main defense substances. Manufacturing X-ray protective door with lead sheet requires a higher purity, approximately 99.9%, also called lead sheet thickness uniformity, not a hole. If the lead sheet at length on a wide size is not large enough to allow the two lead sheet with tin lead solder from the door, but it should cover more than 10mm width another ride. X-ray protective door with a lead sheet is generally made from several layers overlap, about 2 ~ 3mm thick. Because lead sheet was soft and heavy lead door manufacturers, easy to fall, which requires them to be placed between two steel plates 1mm thick, the outside with two flat 8 × 25 frame by welding into the grip, and then with rivet tight. The reason to use a thick flat steel frame made because pierce riveting at the lead sheet, split, thick and wide flat steel to prevent leakage from the riveting at X-rays. When the radiation power of 70kV, when 100mAs, 3mm steel plate for X-rays of lead defense capability equivalent to 0.5mm. Protective door frame can be welded angle iron or square tube. Ray protective outer surface of the door available after 1mmA3 spray steel production, can also be 1mm thick stainless steel plate. Since the X-ray protective doors are generally heavier, switch inconvenient, it should be made generally large sliding doors. Try not made two outside doors. Two pairs of the door to make it difficult, and often result in leakage ct room doors lead lap at the two-door, when making single door, if the door is large, should be considered in the side sliding doors installed casters underneath; another radioactive lead doors, shall triangular framework structure in the framework of the door, the door to prevent the sinking deformation. In particular, should make is, generally private in the manufacture of X-ray protective doors, anti-leakage problem often overlooked at Mortice locks. That where leaks insignificant, long time notes, on the human body is still very large. That can not be used inside and outside with a key to open the door of the built-in lock. Ray protective doors protective principle is: time is proportional to the cumulative dose of radiation exposure suffered by the venue staff, therefore, in the exposure rate unchanged, shorten the exposure time can be reduced by the dose received, or people in a defined work within the time, you can make them suffered radiation doses below the maximum allowable dose to ensure personal safety (using only in exceptional circumstances this law), so as to achieve the purpose of protection. point guard time is to minimize the human and rays contact time (to shorten the time the body irradiated). You can take shielding and distance protection principles. Shielding refers to the use of high atomic number material, commonly used lead or lead-containing substances, as a barrier to absorb unnecessary x-ray. distance protection is the use of x-ray exposure dose is inversely proportional to the square of the distance to this principle, by increasing the x-ray source and the distance between the human body in order to reduce the exposure dose from the x-ray tube to reach the body x-ray, with primary emission lines and continue two types of emission lines, secondary radiation is emitted rays penetrate other raw material processes that occur, the energy than the original emission lines is small, then a greater impact. usually x-ray tube shell and tube aperture shading, filtering plate After the screen lead glass, lead screens, lead rubber apron, lead gloves and walls, etc., shielding protection. Increase the distance the body and x-ray source for distance protection, is simple protective measures. Lead Jinan open door made _ (certified) _ lead to open the door by Jinan Radiation Protection Technology Co., Ltd. Jinan open Radiation Protection Technology Co., Ltd. (www.jnjkfh.com) (www.jnjkfh.com) Shandong Jinan, safety, protective equipment processing leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness , and satisfy customer needs. In Jinan, open leadership with the staff warmly welcome all inquiries negotiations to create Jinan open a better future.