Annealing technology of annealed structural pipe

　　Annealed structural pipe custom pure hydrogen is usually used as anneal atmosphere, the atmosphere is preferably 99 purity. More than 99%. If the other part is inert gas atmosphere, then the purity may be low, but it can not contain too much oxygen, water vapor. The annealing furnace shall be closed from the outside air; hydrogen shall be used as the protective gas, and only one vent shall be opened (the hydrogen used for ignition shall be discharged). The inspection method can be wiped with soap and water in each joint between annealing furnaces to check whether there is gas escaping; among them, the gas is the most likely to touch the annealing furnace tube, and it is placed in place of the tube, which is particularly easy to pierce the ring, often used for inspection.

　　Finally, gas pressure protection. In order to prevent micro leakage, the protective gas in the furnace shall be kept at a certain pressure. If the protective gas is hydrogen, the above general requirement is 20kbar. On the one hand, check whether the material of the drying furnace will be dried when it is initially installed; if there is too much residual water damage from two annealing structure pipes to the furnace, especially if there is a hole in the top tube, then it will not leak in, otherwise it will destroy the whole atmosphere of the furnace.

　　Thirdly, the temperature parameter of annealing temperature of annealed structural tube when primer and template are combined, the complementary sequence of 50% temperature and performance of primer is more important in this double stranded DNA molecule? It is a more important factor affecting specific PCR. In an ideal case, the annealing temperature of annealed structural tube is low enough to ensure that the sequence annealed with primer is effective,

　　But also high enough to reduce nonspecific binding.

　　Hebei Shengtian group Ruiguan Pipe Co., Ltd. is a professional manufacturer and wholesaler of seamless steel pipes. 180 automatic tube rolling production lines, 4 sets of hot rolling piercers, 16 interactive double rod cold drawing machines and multiple automatic rotating pointers, straightening machines, and anhydrous annealing furnaces. Its physical and chemical laboratory can carry out a variety of physical and chemical tests and experiments on steel pipes, the main test equipment are eddy current flaw detector, leakage fault detector and ultrasonic flaw detector spectrometer. The analyzer is complete. It can meet the requirements of steel pipe standard test and various standards of steel pipe test and inspection.