公开(公告)号：EP2943308A4

公开(公告)日：2016-09-14

申请号：EP14737785

申请日：2014-01-06

申请人： BAKER HUGHES INC

发明人： LEHR JOERG

IPC分类号： B23K20/00 ,  B23K20/12 ,  B23K101/06 ,  B23K101/10

CPC分类号： B23K20/129 ,  B23K20/1205 ,  B23K20/26 ,  B23K2201/06 ,  B23K2201/10

公开(公告)号：EP3002077A1

公开(公告)日：2016-04-06

申请号：EP14460129.1

申请日：2014-12-19

申请人： "NewTech" Sp. z o.o.

发明人： Gubarev, Aleksandr ,  Chabior, Roman ,  Slapek, Stanislaw ,  Iudakov, Vladimir

IPC分类号： B23K20/02 ,  B23K20/16 ,  B23K20/227 ,  B23K20/24 ,  B23K20/26 ,  C21D9/50 ,  B23K101/06 ,  B23K101/10 ,  B23K103/04

CPC分类号： B23K20/023 ,  B23K20/16 ,  B23K20/227 ,  B23K20/24 ,  B23K20/26 ,  B23K2201/06 ,  B23K2201/10 ,  B23K2203/05 ,  C21D1/42 ,  C21D9/50 ,  Y02P10/253

摘要： The method of welding pipes made of stainless steel in a hard phase, wherein, in the first stage, the preliminary preferably mechanical processing of the front surfaces of pipes by the help of the cutter is made, in the second stage, the front surfaces of metal pipes are covered with hydrocarbons preferably liquid or in the form of pastes and gels, which protect against oxidation, and then their faces are connected, previously centring, preferably by applying a compressive force 1-8 kg, and next the contact areas are heated up by loop inductor made by the size of pipe to achieve a temperature of about 0.75 to 0.90 of temperature of melting point of the metal, wherein the loop inductor is placed in the contact area with backlash from 4 mm to 25 mm relative to the shape of pipe, after finishing the process of welding, the contact area cools off preferably to the temperature of 300 °C-500 °C, next the additional heating of contact area by the loop inductor is made, to the temperature of normalisation of the type of steel of pipes, then the heating is turned off and the clamp is removed.

摘要翻译： 在硬质相中焊接由不锈钢制成的管道的方法，其中，在第一阶段中，通过切割器的帮助进行初步优选机械加工管道的前表面，在第二阶段中， 金属管覆盖有优选液体的或以糊状和凝胶形式的烃，其防止氧化，然后它们的表面以预先定心的方式连接，优选通过施加1-8kg的压缩力，接下来接触区域被加热 通过由管道尺寸制成的环形电感器以实现金属熔点温度的约0.75至0.90的温度，其中环路电感器相对于形状设置在具有4mm至25mm的间隙的接触区域中 的管子，焊接完成后，接触区域优选冷却至300℃〜500℃的温度，接着通过环路电感器对接触面积进行附加加热，达到温度 对钢管类型进行归一化，然后关闭加热并拆下夹具。