The Cangzhou Hongyuan Pipe Industry Contact: Wang Shan 15,922,054,164 QQ: 1494092364 E-mail: 15922054164@163.com simmer elbow Cold-Formed heated, there is the machine simmer. Cold bending and backward in a process of heating is heating the first floor of the answer was in place, it is not the same machine simmer, without filling sand generally smaller than the diameter of forty, greater than the diameter of forty general irrigation good on the sand, but the sand must be filling solid. And then want to simmer made what angle the line. Simmer elbow is heating form of bending. Production process: sealing a pipe imports --- filling sand sealing the other end of the tube population build real --- ---- simmer heat to 900 degrees --- bending --- Qing sand. Hot simmer elbow generally multiples, the conventional stamping elbow is 1.5 times as well as the following, but the heat and simmer elbow out of the heat and simmer, multiples is too small that is, we often say that the center of the pitch, if too small, then simmer does not come out, so simmer elbow multiples of not less than 2 times, the plant also a corresponding multiple of tire tool, another of the most important heat and simmer elbow at the port without the straight pipe section, while the heat and simmer bend with a straight pipe section 's. Hebei Hongyuan Pipe Industry