Steel cap for disc-shaped suspension insulator string element and machining method of steel cap

Abstract

The invention discloses a steel cap for a disc-shaped suspension insulator string element and a machining method of the steel cap. The machining method comprises the steps of (1) blank preparing, wherein Q235 carbon steel rods are cut into blank materials; (2) blank heating, wherein the blank materials are heated to 1000 DEG C-1100 DEG C; (3) die forging, wherein the heated blank materials are subjected to pre-forging and final forging on a forging machine, and a steel cap blank piece is formed; (4) trimming, wherein the steel cap blank piece is subjected to side cutting and hole punching trimming; (5) machining, wherein the trimmed steel cap blank piece is subjected to machining; (6) heat processing, wherein the steel cap blank piece is subjected to annealing treatment; (7) abrasive blasting, wherein the steel cap blank piece after heat processing is subjected to abrasive blasting, a surface oxidation layer is removed, and hot galvanizing attaching strength is enhanced; and (8) hot-dip galvanizing, wherein hot-dip galvanizing is carried out according to the standard JB / T8177. The steel cap for the disc-shaped suspension insulator string element is machined and manufactured through the method.

Description

technical field [0001] The invention relates to a steel cap and a processing method thereof, in particular to a steel cap for a disc suspension insulator string element and a processing method thereof. Background technique [0002] Disc-shaped suspension insulator string components are key components in high-voltage, ultra-high-voltage and ultra-high-voltage power grids, electrified railways, high-speed electrified railways, and rail transit catenary. Their mechanical safety and reliability seriously affect the safe operation of lines, and disc-shaped The steel cap of the suspension insulator string element is the part of the insulator that bears the mechanical load, so the steel cap is a key part of the insulator, and its mechanical reliability should be strictly controlled. [0003] At present, steel caps for disc-shaped suspension insulator string elements are all made of casting technology, so there are inevitably many casting defects in steel cap parts, such as: slag in...

AI Technical Summary

Problems solved by technology

[0003] At present, steel caps for disc-shaped suspension insulator string elements are all made of casting technology, so there are inevitably many casting defects in steel cap parts, such as: slag inclusions, pores, shrinkage porosity, trachoma, etc., which seriously affect the steel caps. Quality, so that there are potential safety hazards in the line of disc suspension insulator string elements using cast steel caps

In addition, the casting process consumes a lot of energy, seriously pollutes the environment, and has low production efficiency.

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