A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To provide a gas pressure-welding method for a rail that can reduce oxidized inclusions even when reducing amounts of compression during gas pressure-welding, suppress occurrence of push-out breakage and reduce labor for work for gas pressure-welding.SOLUTION: A gas pressure-welding method #100 welds end faces 5 of a rail to each other, by gas pressure-welding a butted portion 7 at which the end faces 5 of the rail are butted to each other. The gas pressure-welding method #100 includes an end face processing step #110 of processing edge parts of the end faces of the rail with a predetermined grinding dimension so that shapes of the end faces of the rail become smaller than a shape of a cross section of the rail. The end face processing step #100 includes a step of grinding the end faces under a processing condition in which a relational expression of Z/Y<1 is satisfied, where a grinding dimension of the edge parts of the end faces of the rail in a length direction of the rail is defined as Y and a grinding dimension of the edge parts of the end faces of the rail in a direction crossing the length direction of the rail is defined as Z.SELECTED DRAWING: Figure 4
【課題】ガス圧接時の圧縮量を低減しても酸化介在物を低減することができ、押抜き割れの発生を抑制し、ガス圧接作業の労力を削減することができるレールのガス圧接方法を提供する。【解決手段】ガス圧接方法＃１００は、レール端面５同士を突き合わせた突合せ部７をガス圧接することによって、レール端面５同士を接合する方法である。ガス圧接方法＃１００は、レール端面形状がレール断面形状よりも小さくなるように、レール端面縁部を所定の削り加工寸法で加工する端面加工工程＃１１０を含み、端面加工工程＃１００は、レール長さ方向のレール端面縁部の削り加工寸法Ｙ、レール長さ方向と交差する方向のレール端面縁部の削り加工寸法Ｚであるときに、Ｚ/Ｙ＜１の加工条件で削り加工する工程を含む。【選択図】図４
To provide a gas pressure-welding method for a rail that can reduce oxidized inclusions even when reducing amounts of compression during gas pressure-welding, suppress occurrence of push-out breakage and reduce labor for work for gas pressure-welding.SOLUTION: A gas pressure-welding method #100 welds end faces 5 of a rail to each other, by gas pressure-welding a butted portion 7 at which the end faces 5 of the rail are butted to each other. The gas pressure-welding method #100 includes an end face processing step #110 of processing edge parts of the end faces of the rail with a predetermined grinding dimension so that shapes of the end faces of the rail become smaller than a shape of a cross section of the rail. The end face processing step #100 includes a step of grinding the end faces under a processing condition in which a relational expression of Z/Y<1 is satisfied, where a grinding dimension of the edge parts of the end faces of the rail in a length direction of the rail is defined as Y and a grinding dimension of the edge parts of the end faces of the rail in a direction crossing the length direction of the rail is defined as Z.SELECTED DRAWING: Figure 4
【課題】ガス圧接時の圧縮量を低減しても酸化介在物を低減することができ、押抜き割れの発生を抑制し、ガス圧接作業の労力を削減することができるレールのガス圧接方法を提供する。【解決手段】ガス圧接方法＃１００は、レール端面５同士を突き合わせた突合せ部７をガス圧接することによって、レール端面５同士を接合する方法である。ガス圧接方法＃１００は、レール端面形状がレール断面形状よりも小さくなるように、レール端面縁部を所定の削り加工寸法で加工する端面加工工程＃１１０を含み、端面加工工程＃１００は、レール長さ方向のレール端面縁部の削り加工寸法Ｙ、レール長さ方向と交差する方向のレール端面縁部の削り加工寸法Ｚであるときに、Ｚ/Ｙ＜１の加工条件で削り加工する工程を含む。【選択図】図４
GAS PRESSURE-WELDING METHOD FOR RAIL
レールのガス圧接方法
ITO HAJIME (author)
2023-12-01
Patent
Electronic Resource
Japanese
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