公开(公告)号：US4949895A

公开(公告)日：1990-08-21

申请号：US695048

申请日：1985-01-25

申请人： Yoshihiko Sugiyama ,  Tadashi Nosetani ,  Keizo Namba ,  Hiromiti Sano

发明人： Yoshihiko Sugiyama ,  Tadashi Nosetani ,  Keizo Namba ,  Hiromiti Sano

IPC分类号： F16L13/02 ,  F16L9/02 ,  F16L13/04 ,  F16L41/02 ,  F16L41/08

CPC分类号： F16L41/084 ,  F16L9/02

摘要： A process of fixing a double-walled tubing structure to a titanium tube sheet, the tubing structure comprising a non-titanium outer tube and a titanium inner lining tube, comprising the steps of: pressure-welding a titanium collar to an end face of the outer tube to form an integral titanium end portion at one end of the outer tube; inserting the titanium lining tube in the outer tube and fixing the titanium lining tube to the outer tube in pressed contact with the inner surface of the outer tube to form the titanium-lined double-walled tubing structure; and inserting an end section of the tubing structure in a hole in the tube sheet, and welding the titanium end portion of the outer tube and an end portion of the lining tube to the tube sheet. Instead of the titanium collar being directly welded to the outer tube, an auxiliary collar made of a metal material for sound welding to the outer tube may be pressure-welded at its one end to the titanium collar, and fusion-welded at the other end to the outer tube. In either case, the titanium end portion of the internally titanium-lined double-walled tubing structure is positioned in the hole and welded to the tube sheet.

摘要翻译： 将双壁管结构固定在钛管片上的方法，所述管结构包括非钛外管和钛内衬管，所述方法包括以下步骤：将钛套环压焊到所述钛管的端面 外管，以在外管的一端形成整体的钛端部; 将钛衬管插入外管，并将钛衬管固定在与外管内表面压接的外管上，形成钛衬双壁管结构; 并且将管结构的端部插入管板的孔中，并且将外管的钛端部和衬管的端部焊接到管板。 代替钛合金轴环直接焊接到外管，由金属材料制成的用于对外管进行声音焊接的辅助轴环可以在其一端被压焊到钛套环上，并在另一端熔焊 到外管。 在任一情况下，内钛基双层管结构的钛端部定位在孔中并焊接到管板。

公开(公告)号：US5334814A

公开(公告)日：1994-08-02

申请号：US890017

申请日：1992-05-27

申请人： Tadashi Nosetani ,  Keizo Namba ,  Hiromichi Sano ,  Makoto Yonemitsu ,  Masaki Kumagai ,  Masanori Tsunekawa

发明人： Tadashi Nosetani ,  Keizo Namba ,  Hiromichi Sano ,  Makoto Yonemitsu ,  Masaki Kumagai ,  Masanori Tsunekawa

IPC分类号： B23K11/30 ,  B23K35/02 ,  B23K35/24

CPC分类号： B23K11/3009 ,  B23K35/0205 ,  Y10T428/12715

摘要： A spot welding electrode is made of a copper base material such as copper, copper alloy, or alumina dispersion strengthened copper, and has a Sn coating layer formed at the part making contact with the material being welded. The formed Sn coating layer reduces electrode wear and prolongs electrode life.

摘要翻译： 点焊电极由诸如铜，铜合金或氧化铝分散强化铜的铜基材料制成，并且在与被焊接的材料接触的部分处形成Sn涂层。 形成的Sn涂层减少电极磨损并延长电极寿命。