Abrégé

A butt-welding method for a U-shaped stainless steel rib with a drainage function. In the method, a stainless steel sheet patching section (6) of a certain length is provided between bridge decks of adjacent beam sections, and a U-shaped stainless steel rib patching section (5) of a certain length is provided between U-shaped stainless steel ribs; the side of the U-shaped stainless steel ribs close to a butt-weld (11) is affixed with water-soluble paper (8) by means of hydrosol, the butt weld is sealed by means of adhesive tape paper, the adhesive tape paper at the uppermost end is provided with an exhaust hole, and the U-shaped stainless steel ribs, the bridge decks (1), the water-soluble paper on two sides of the butt weld, and the U-shaped stainless steel rib patching section form a local enclosed space; and a side surface of the U-shaped stainless steel rib patching section is provided with a gas filling hole (7) for filling shielding gas. According to the welding method, the water-soluble paper is used to artificially form an enclosed space around the butt weld, so as to solve the problem of it being inconvenient to fill shielding gas and achieve filling of the welding shielding gas into a space which is narrow and long and has an obstruction inside.

Classes IPC  ?

• B23K 9/16 - Soudage ou découpage à l'arc utilisant des gaz de protection
• B23K 9/167 - Soudage ou découpage à l'arc utilisant des gaz de protection et une électrode non consommable
• B23K 9/235 - Traitement préalable
• B23K 33/00 - Extrémités de pièces spécialement profilées pour effectuer des assemblages brasés ou soudésRemplissage des joints continus ainsi formés
• B23K 9/025 - Soudage de joints continusSupportsPièces rapportées pour des joints rectilignes

Abrégé

The present invention provides a 1676 mm and 1000 mm dual-gauge mixed gauge turnout, mainly consisting of a switch and a fixed frog. The switch comprises three fixed basic rails and three switch rails moving in union; the three basic rails are respectively a 1676 mm straight basic rail, a 1000 mm straight basic rail, and a shared curved basic rail; the three switch rails are respectively a 1676 mm curved switch rail, a 1000 mm curved switch rail, and a shared straight switch rail; the fixed frog mainly consists of a bidirectional obtuse-angle frog, a first acute-angle frog, and a second acute-angle frog. The present invention provides a mixed gauge solution for a broad gauge of 1676 mm and a meter gauge of 1000 mm, and designs a bidirectional obtuse-angle frog having a self-protection function in the case where the space is limited and no guard rail can be provided.

Classes IPC  ?

• E01B 7/00 - AiguillagesCroisements

Abrégé

The present invention provides a 1676 mm and 1000 mm double-rail-distance mixed gage turnout, mainly consisting of a strip switch and a stiff frog. The strip switch comprises three fixed stock rails and three linked point rails. The three stock rails are a 1676 mm straight-strand stock rail, a 1000 mm straight-strand stock rail and a common curve-strand stock rail, respectively. The three point rails are a 1676 mm curve point rail, a 1000 mm curve point rail and a common linear point rail, respectively. The stiff frog is mainly composed of a bidirectional obtuse frog, a first obtuse frog and a second obtuse frog. A mixed gage scheme is provided for 1676 mm width rails and 1000 mm meter gage rails, and in the situation that the space is confined and guardrails cannot be arranged, bidirectional obtuse frogs with a self-protection function are designed.

Classes IPC  ?

• E01B 7/00 - AiguillagesCroisements