After the damaged military equipment boxes, equipment boxes, aluminum welding wire welding usually use 301 and 311 of Al-Si wire to left welding method, welding torch and work into a 60 ° angle, welding thickness 15mm or more, total station instrument case manufacturer to the right welding method, welding torch and workpiece at 90 ° angle in the air, aluminum oxide combined with simple to produce fine aluminum oxide film (thickness of about 0.1-0.2μm), high melting point (approx. 2050 ℃), well beyond the melting point of aluminum and aluminum alloys (about 600 ℃ or so). alumina density 3.95-4,10g / cm3, aluminum is approximately 1.4 times, the appearance of the alumina film of easy absorption water, welding, which prevents fusion of the base metal. It simply constitute pores. slag, incomplete fusion and other shortcomings, resulting in reduced weld function. Hebei Aviation aluminum instrument box factory, contract Trunk, equipment boxes across the country, meter boxes, aluminum box design and processing business. Xiongxian plastic carrying case CATIC factory to remind you that the use of aircraft which size box do most peace of mind, 20-inch and add trilateral 115CM (except British Virgin is 105CM) can take on the plane and the 28-inch size and add trilateral 158CM aircraft can be checked free of charge in a standard size. Lever to choose to have a steel inner cabinet opposed skeleton, preferably rainproof fabric, bigger particles of the material is good, because the more wear-resistant, the wheels do not have to say it must have to be built, (by the way , said a lot of boxes installed four wheels can turn, can be checked boxes must not use such wheels, because too much out cheeky so easily cast off) course material is rubber wheels, and custom-made trolley equipment boxes, pulled up at the time the sound, the better. located in Baoding, Hebei Province, the industrial zone, specializing in the production equipment boxes, aluminum instrument case, aviation equipment boxes, mining equipment special equipment boxes, rod boxes, crates, suitcase, trolley welcome to discuss ordering instrument case |. instrument case | Aviation equipment boxes provided by Xiong Aviation aluminum instrument box factory. Xiong Aviation aluminum instrument box factory (www.lljbf.com) (www.lljbf.com) strong, credible, in Baoding kits, toolboxes and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead me in the aircraft instrument into the brilliant and you work for a better future!