Method for improving crimping quality of large-section wire based on crimping sequence

Abstract

The invention discloses a method for improving crimping quality of a large-section wire based on a crimping sequence. The method comprises the steps of establishing a steel core crimping total model which comprises three parts of an aluminum strain pipe, a steel-cored aluminum strand and a strain clamp steel anchor, cutting off the aluminum strand at one end of the steel-cored aluminum strand by ahacksaw and inserting the strand into the steel anchor for steel anchor crimping, then sleeving the aluminum strain pipe with the steel-cored aluminum strand, crimping the aluminum strain pipe, and crimping the steel core and the aluminum pipe in different crimping modes. Based on the crimping sequence of the large-cross-section wire, the reason why the steel core of the tension-resistant crimping pipe is broken is further analyzed, and the mechanical property analysis of the crimping process is carried out from the aspects of theory and test, so that certain reference is provided for eliminating the hidden danger. The improvement of the crimping quality control of the strain crimping pipe of a circuit can be effectively promoted.

Description

technical field [0001] The invention belongs to the technical field of improving the crimping quality of large-section wires, and in particular relates to a method for improving the crimping quality of large-section wires based on a crimping sequence. Background technique [0002] With the rapid development of the power grid and the increase of the voltage level, the performance requirements for the tension clamps of the transmission lines are also continuously improved. At present, due to the influence of unfavorable factors such as tight construction schedule, uneven technical level of construction personnel, difficult supervision, large number of crimping wire clamps and relatively lack of inspection methods after crimping, and crimping is a hidden project, it is resistant to wire clamps. The quality of crimping cannot be effectively guaranteed, causing the clamp to become the weak link of the line being put into operation. Due to the large amount of supervision and insp...

AI Technical Summary

Problems solved by technology

At present, due to the influence of unfavorable factors such as tight construction schedule, uneven technical level of construction personnel, difficult supervision, large number of crimping wire clamps and relatively lack of inspection methods after crimping, and crimping is a hidden project, it is resistant to wire clamps. The crimping quality cannot be effectively guaranteed, causing the clamp to become the weak link of the line being put into operation

Due to the large amount of supervision and inspection of wire clamps in the process of grid infrastructure construction and the relative lack of inspection methods, some installed transmission line clamps will experience different tissue aging, internal corrosion and performance degradation under different operating conditions, which will seriously lead to Tension clamps break and fail, which affects the safe and stable operation of the power grid

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