A method for wrapping heat-shrinkable tubes in a switch cabinet branch row and a switch cabinet branch row

Abstract

The invention relates to a method for sleeving a branch row of a switch cabinet with a heat shrink tube, and a branch row of a switch cabinet, and belongs to the technical field of machining for branch rows of switch cabinets. The method for sleeving the branch row of the switch cabinet with the heat shrink tube comprises the following steps: sleeving the branch row which comprising a bent part, with the heat shrink tube, starting to carry out heating shrink from one end of the heat shrink tube by virtue of a flame injection device until the bent part of the branch row is arrived at, carrying out heating shrink on an externally-bulged surface of the bent part, then carrying out heating shrink on an internally-sunken surface of the bent part, and then carrying out heating shrink on a side surface of the bent part. According to the method for sleeving the branch row of the switch cabinet with the heat shrink tube, which is disclosed by the invention, through heating the externally-bulged surface of the bent part, and then heating the internally-sunken surface of the bent part, wrinkles of the bent part of the branch row are adequately reduced, so that the surface of the heat shrink tube is smooth and beautiful, product quality is improved, and product competitiveness is also improved.

Description

technical field [0001] The invention relates to a method for wrapping heat-shrinkable tubes on a switch cabinet branch row and a switch cabinet branch row, belonging to the technical field of switch cabinet branch row processing. Background technique [0002] With the development of distribution network technology, the market demand for power transmission and distribution equipment continues to grow. At the same time, with the reconstruction of rural power grids and the construction of UHV projects, the demand for power distribution equipment is increasing rapidly. The demand for 10kV and 35kV switchgear is increasing. The larger the size, the higher the requirements for product quality control. The traditional production process of switchgear cannot meet the needs of the market. Quality has a greater impact. In particular, the problem of wrinkles at the bends of the double-branch row and three-branch row sleeves has not been solved, which seriously affects the overall appe...

AI Technical Summary

Problems solved by technology

This method first heats the concave surface of the heterogeneous copper bar, and then heats the convex surface of the special-shaped copper bar. This method cannot completely solve the problem of wrinkles at the bend of the special-shaped copper bar, especially when heating the special-shaped double-row and triple-row, the wrinkle problem is more prominent.

In addition, this method first heats all the concave surfaces and then heats all the convex surfaces. When dealing with conductive bars with more bends, the heated heat-shrinkable tube has already cooled down, which is not conducive to the fixed position of the heat-shrinkable tube.

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