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Manufacturing process for three girders of subway

A manufacturing process and subway technology, which is applied in the field of manufacturing the three major beams of the subway. It can solve the problems of difficulty in straightness adjustment, large penetration depth of corbel welds, and high flatness requirements, so as to achieve the change of process cohesion and production cycle. Short, effective work efficiency

Active Publication Date: 2015-05-13
QINGDAO LIANCHENG HONGDA RAIL TRAFFIC EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the technological requirements of the three girders are becoming more and more stringent; the requirements for welds are also getting higher and higher. At present, many welds require CPB-CPC2 welds, the inspection level is CT2, and the standard requires 10% non-destructive testing, but The current technology cannot meet the requirements of 100% non-destructive testing. In addition, the weld penetration of the corbel is large, and multi-layer and multi-pass welding are prone to defects such as insufficient penetration and unfused layers; the flatness requirements are high, and the straightness adjustment Difficult to meet market demands

Method used

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  • Manufacturing process for three girders of subway
  • Manufacturing process for three girders of subway
  • Manufacturing process for three girders of subway

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Embodiment Construction

[0018] See attached Figures 1 to 3 As shown, the present invention prepares the three major beams of the subway. The three major beams of the subway include buffer beams, traction beams and corbel beams. The steps for preparing the buffer beams are two steps. The first step adopts non-melting electrode gas shielded welding method to utilize The digital welding machine WAVE3000 welding equipment welds the welding material with a diameter of 3.2 mm at a speed of 20-30 cm / min to buffer the left node 1, where the current intensity of the welding equipment is between 210-230A, and the arc voltage is between 11-13V , the heat input is 3.7-7.2 kJ / cm; the second step is to use the non-melting electrode gas shielded welding method to use the welding equipment to weld the welding material with a diameter of 3.2 mm at a speed of 20-30 cm / min to weld the buffer right node 2, where The current intensity of the welding equipment is between 210-230A, the arc voltage is between 11-13V, and t...

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Abstract

The invention relates to a manufacturing process for three girders of a subway. The manufacturing process is used for preparing three girders of the subway, and the three girders of the subway include a buffering beam, a traction beam and a sleeper beam, the three girders of the subway are complicated in structure, and multiple components exist, and production line operation in different steps is needed, so that simpleness in simple-step operation is achieved, the duration time is shorter, the step articulation property is enhanced, the production period is shorter, so that the working efficiency is improved, and the production capacity is improved.

Description

technical field [0001] The invention belongs to the field of manufacturing technology, and in particular relates to a manufacturing process of three subway girders. Background technique [0002] The three major beams of the subway include buffer beams, traction beams and corbel beams. The buffer beams are used to alleviate the longitudinal impact and vibration caused by changes in the traction force of the locomotive or collisions between vehicles during starting, braking and shunting operations. The buffer beam has the function of dissipating the impact and vibration between vehicles, thereby reducing the damage to the vehicle body structure and loaded goods; the traction beam is an important force-bearing part of the vehicle body chassis structure, which plays a very important role in transmitting longitudinal force. important role. And it is connected to the coupler, and the traction force is transmitted through the coupler; the bolster bears all the weight of all parts ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/167
Inventor 孙三刚
Owner QINGDAO LIANCHENG HONGDA RAIL TRAFFIC EQUIP
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