Preparation process of 16KV cable red copper connecting pipe
A preparation process, 16KV technology, applied in the direction of metal extrusion dies, etc., can solve the problems of complicated tooling for connecting pipes, poor installation conditions, and easy failure of cable lines, etc., and achieve orderly metal flow and deformation, increased mold life, and increased processes. Effect
Pending Publication Date: 2021-07-16
NINGBO CHANGHUA COPPER PRODS
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Problems solved by technology
The section of the high-voltage cable is the weak link of the cable line. In addition, the tooling of the connecting pipe is complicated and the installation conditions on site are harsh. Therefore, the cable connecting pipe becomes the weakest point of the cable line that is most prone to failure.
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Embodiment Construction
[0032] The present invention will be further described below in conjunction with accompanying drawing.
[0033] Such as figure 1 Shown, the preparation technology of a kind of 16KV cable red copper connecting pipe of the present invention comprises the following steps:
[0034] S1. Collect technical data, refer to the relevant data of domestic and foreign electrical cable connection pipe design technology, manufacturing technology and molding equipment, and determine the structural design ideas of the connection pipe;
[0035] S2. Carry out computer 2D / 3D simulation feasibility analysis, and after expert review, the designer draws the structural drawings, and then notifies the purchasing department to purchase equipment materials and prepare molds;
[0036] Among them, the equipment material is pure copper T2 of non-ferrous metal. The yield strength s of the equipment material in the annealed state is 220-240MPa, and the elongation rate is ≥ 45%. It can reach 89-95HRA. It ha...
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Abstract
The invention discloses a preparation process of a 16KV cable red copper connecting pipe, and belongs to the technical field of cable accessories. The preparation process comprises the following steps: S1, collecting technical data, and determining a structural design thought of the connecting pipe; S2, purchasing equipment materials and a preparing mold; S3, shearing and blanking equipment materials through bars; S4, treating the blanked materials through multiple working procedures; S5, obtaining a blank piece; S6, placing the blank piece in the preparing mold; S7, performing extrusion forming on the blank in a positioning pit of a female die; S8, after forming, ejecting the workpiece out of the female die by an ejector rod; and S9, after the workpiece is taken away, placing the blank piece in the positioning pit of the female die, and repeating the operation in sequence. According to the preparation process of the 16KV cable red copper connecting pipe, the combined extrusion mode of combined extrusion and backward extrusion is adopted, the extrusion force can be reduced through the combined extrusion mode, the service life of the mold is prolonged, and meanwhile metal flowing deformation is orderly and easy to control.
Description
technical field [0001] The invention belongs to the technical field of cable accessories, in particular to a preparation process of a 16KV cable copper connecting pipe. Background technique [0002] At present, compared with advanced foreign enterprises in my country's electrical cable accessories industry, there is still a big gap in management level, technological level, technical content, product quality, etc., and the utilization rate of equipment is low. The average utilization rate of electrical cable accessories in my country is about 30%, and it is normal for advanced countries to have an equipment utilization rate of 70%. The low labor productivity of the industry is also a major obstacle for Chinese electrical cable accessories manufacturers. Although my country's electrical cable accessories industry has imported a large number of production equipment since the 1980s, which has greatly improved the labor productivity of the industry, the gap with foreign countrie...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B21C37/06B21C23/00B21C23/20B21C25/02B21C23/21
CPCB21C37/06B21C23/00B21C23/20B21C25/025B21C23/211
Inventor 胡四清
Owner NINGBO CHANGHUA COPPER PRODS