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Method for adjusting straightness of on-line steel rail welding joint
The invention discloses a method for adjusting straightness of an on-line steel rail welding joint. The method is characterized by taking a heater as a heating source and repeatedly heating the bottom surface of the joint of the steel rail. Furthermore, the adjusting method comprises the following steps: taking down steel rail fasteners on the two sides of the joint; lifting the steel rail near the welding seam and putting the heater under the joint; igniting the heater, moving the heater to the two sides by taking the joint as the center in a reciprocating manner so as to repeatedly heat the bottom surface of the steel rail joint; stopping heating after the temperature reaches the predetermined temperature; and naturally cooling the steel rail. By virtue of the technical scheme, the straightness of the steel rail joint accords with the standard without cutting off the joint and inserting the steel rail; the hardness of the top surface of the steel rail is not changed; the external force is not required to be applied, so that the steel repairing work is simple and liable to operate; the unnecessary processes are eliminated; the manpower and material resources are saved.
Method for adjusting straightness of on-line steel rail welding joint
The invention discloses a method for adjusting straightness of an on-line steel rail welding joint. The method is characterized by taking a heater as a heating source and repeatedly heating the bottom surface of the joint of the steel rail. Furthermore, the adjusting method comprises the following steps: taking down steel rail fasteners on the two sides of the joint; lifting the steel rail near the welding seam and putting the heater under the joint; igniting the heater, moving the heater to the two sides by taking the joint as the center in a reciprocating manner so as to repeatedly heat the bottom surface of the steel rail joint; stopping heating after the temperature reaches the predetermined temperature; and naturally cooling the steel rail. By virtue of the technical scheme, the straightness of the steel rail joint accords with the standard without cutting off the joint and inserting the steel rail; the hardness of the top surface of the steel rail is not changed; the external force is not required to be applied, so that the steel repairing work is simple and liable to operate; the unnecessary processes are eliminated; the manpower and material resources are saved.
Method for adjusting straightness of on-line steel rail welding joint
GAO WENHUI (author) / TIAN TIAN (author) / NI ZHENGRONG (author) / HU YUTANG (author) / DAI TAO (author)
2015-06-10
Patent
Electronic Resource
English
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
| European Patent Office | 2023