Rails are also called steel rails and heavy rails
Rail models
Light rail models, rail materials, rail specifications/,/,/,/,/.
Heavy rail model, rail material, rail specifications/,/,/,/.
Lifting rail model, rail material, rail specifications/,/,/,/. The above rail models are commonly used rail models.
Heavy-duty rail knowledge: rails with a nominal weight per meter greater than. Train rails and crane rails are heavy rails. Train rails are used to lay railways. They have to withstand the pressure, impact load and friction during train operation, and are required to have sufficient strength and a certain degree of toughness. The quality requirements are strict. In addition to ensuring its chemical composition, it also requires testing of mechanical properties, drop weight test and acid leaching low magnification structure. The manufacturing plants include Wuhan Iron and Steel Co., Ltd., Anshan Iron and Steel Co., Ltd., Baotou Iron and Steel Co., Ltd. and Panzhihua Iron and Steel Co., Ltd. Crane rails are crane rails with a low height, large head width and waist thickness, and only require testing of chemical composition and tensile strength. Used for laying crane and trolley tracks. The production plants include Anshan Iron and Steel Co., Ltd. and Panzhihua Iron and Steel Co., Ltd.
Light-weight rail knowledge is a rail whose nominal weight per meter is less than or equal to. The quality requirements for light rail are lower than those for heavy rail. They only require testing of their chemical composition, tensile strength, hardness and drop weight test. Main uses: Light rail is mainly used to lay temporary transportation lines and light locomotive lines in forest areas, mining areas, factories and construction sites.
Rail model and size inspection mainly includes inspection of finished rail cross-section dimensions, such as rail height, head width, bottom width, waist thickness, bottom convexity and asymmetry, etc.
Rail straightness detection device.
At present, a laser device for measuring the flatness of rail ends has been successfully developed. This device can accurately measure the flatness of the rails in the horizontal or vertical direction from the rail head. The device consists of a measuring ruler with a potentiometer and an elastic buckle pin. There is a sensitive displacement sensor on the buckle pin. It moves with the measured surface and continuously transmits the signal to the computer data processing center. After data processing, the computer draws Get the roughness curve of the measured surface.
Rail tread unevenness detection.
Using laser technology and computer waveform analysis technology, the unevenness of the rail tread can be accurately measured. This measuring device consists of a laser that measures the rail height and a sensor that measures the unevenness of the tread. With the help of computer waveform analysis technology, it can print out data about the unevenness of the rail tread. If it exceeds the regulations, the marking device will be on the rail. Spray on markers.
Rail wave bending detection.
A long rigid ruler is used, and a high-precision displacement sensor is installed on the ruler. When measuring the rail, the displacement sensor installed on the rigid ruler continuously emits changing pulse signals. After computer processing, a map of the wave bending condition of the entire length of the track being measured is printed.
Rail height detection.
The rail height is measured using a large number of contact lasers. The frequency of the probe used is . By adjusting the probe, the rail height of different cross-sections can be measured.
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