JPS59110177U

JPS59110177U - Cooling jig for steel welding

Info

Publication number: JPS59110177U
Application number: JP265883U
Authority: JP
Inventors: 岡谷　義直
Original assignee: 株式会社新潟鐵工所
Priority date: 1983-01-14
Filing date: 1983-01-14
Publication date: 1984-07-25
Also published as: JPH0227992Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は、この考案に係る鋼溶接用冷却治具を示す斜視
図、第２図は、同冷却治具が鋼管の溶接　　□　　。部付近：こ挿入された状態を示す側面図、第３図は、鋼
管に挿入された状態の冷却治具の断面図、第４′図は冷
却導管付近の拡大図、第５図は、同断面図、第６図は、
吹出ノズルとタンクを示す断面図、第７図は同平面図、
第８図は、防水膜ツキンの回転ジヨイント付近の断面図
、第９図は、鋼管を回転させて溶接する作業の説明図、
第１０図は、一層溶接を示す側断面図、第１１図は、二
層以降の溶接を示す側断面図、第、１２図は、冷却水の
散布状　　稗を示す説明図、第１３図は、この考案に係
る第２の実施例の冷却治具を示す側断面図、第１４図は
、溶接による発生熱量を説明するための溶接部の斜視図
である。Ｔ、　Ｔ・・・鋼管、２・・・冷却導管、５・・・吹出
しノ、ズル、６．７・・・一方及び他方の遮蔽パツキン
、ｌｃ。３・・・排出路を構成する排出部及び向転排出ジヨイン
ト管。Fig. 1 is a perspective view showing a cooling jig for steel welding according to this invention, and Fig. 2 shows a cooling jig for welding steel pipes. Near the section: A side view showing the inserted state, Fig. 3 is a sectional view of the cooling jig inserted into the steel pipe, Fig. 4' is an enlarged view of the vicinity of the cooling pipe, and Fig. 5 is the same. The cross-sectional view, Figure 6, is
A cross-sectional view showing the blow-off nozzle and the tank, FIG. 7 is a plan view of the same,
Figure 8 is a cross-sectional view of the vicinity of the rotation joint of the waterproof membrane, Figure 9 is an explanatory diagram of the work of rotating and welding the steel pipe,
Fig. 10 is a side sectional view showing one-layer welding, Fig. 11 is a side sectional view showing second-layer welding and subsequent welding, Figs. FIG. 14 is a side sectional view showing a cooling jig according to a second embodiment of the invention, and FIG. 14 is a perspective view of a welded part for explaining the amount of heat generated by welding. T, T...Steel pipe, 2...Cooling conduit, 5...Blowout nozzle, nozzle, 6.7...One and other shielding gaskets, lc. 3... A discharge section and a turning discharge joint pipe that constitute a discharge path.

Claims

[Scope of utility model registration request]

(1) A cooling conduit that guides the refrigerant into the steel pipe to be welded, and a blow-off nozzle installed in the cooling conduit to spray the refrigerant guided by the cooling conduit toward the back side of the welded part at a predetermined flow rate. and one and the other shielding packings provided on both sides of the blow-off nozzle and forming the entire convection space for the refrigerant with the inner surface of the steel pipe, and the refrigerant that exchanged heat at the welded part from the convection space. A cooling jig for steel welding, comprising: a discharge path for discharging the discharge outside the steel pipe.

(2) The cooling jig for steel welding according to claim 1, wherein the blowing nozzle is always oriented vertically upward when rotating and welding the steel pipe.

(3) The cooling jig for steel welding according to the utility model registration claim 1, wherein the blowout opening of the blowout nozzle has an opening area larger than the cross-sectional area of the intermediate pipe.

(4) A cooling jig for steel welding according to claim 1, wherein cooling water is not used as the refrigerant.