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

A technology of suspension insulators and processing methods, which is applied in the direction of suspension/strain insulators, insulators, electrical components, etc., and can solve the potential safety hazards in the circuit of disc-shaped suspension insulators, high energy consumption in the casting process, and influence on the quality of steel caps, etc. problems, to achieve the effect of environmental protection, eliminate casting defects, and improve safety and reliability

Inactive Publication Date: 2014-05-28
HEBEI HAIHONG ELECTRICAL EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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

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Embodiment Construction

[0028] In order to fully understand the purpose, features and effects of the present invention, the present invention will be described in detail through the following specific implementation modes.

[0029] The invention discloses a steel cap for a disc suspension insulator string element and a processing method thereof. The processing method realization steps are as follows:

[0030] 1) Blank preparation: Cut Q235 carbon steel rods into cylindrical blanks according to product requirements; inspect the length of the cut cylindrical blanks and the flatness of the end faces, and proceed to step 2 after passing the inspection;

[0031] 2) Billet heating: heat the billet to 1000-1100°C, and use induction electricity for heating;

[0032] 3) Die forging: pre-forging and final forging the heated blank on the forging machine, forming a steel cap blank, using the pre-forging die and final forging die for die forging, and the pre-forging die forging the blank into the basic shape Bl...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B19/00H01B17/38H01B17/06
Inventor 及海涛及荣军王长明张炎武耿卫斌
Owner HEBEI HAIHONG ELECTRICAL EQUIP CO LTD
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