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Compression joint type squeezing bag penetrating umbrella composite insulator core bar jacket squeezing bag sulfuration process and device

A synthetic insulator, crimping technology, used in insulators, electrical components, circuits, etc., can solve the problems of poor vulcanization effect, difficult operation, inability to complete extrusion and vulcanization at one time, and achieve good operating conditions and ensure safe operation. , The effect of excellent vulcanization quality

Active Publication Date: 2009-11-11
STATE GRID CORP OF CHINA +2
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Problems solved by technology

When extruding the mandrel with the existing mandrel sheath extrusion process, it is very difficult to operate when extruding the long rod, and the extrusion and vulcanization cannot be completed at one time, and the vulcanization effect is not good. Composite insulators pose certain difficulties, and it is difficult to solve the problem of quality fluctuations with ordinary extrusion processes

Method used

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  • Compression joint type squeezing bag penetrating umbrella composite insulator core bar jacket squeezing bag sulfuration process and device

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Embodiment

[0016] Embodiment: before use, the surface of the mandrel is cleaned with absolute ethanol and then coated with a layer of adhesive; silicone rubber, coupling agent and other extrusion encapsulation raw materials are added to the formula for extruding the mandrel to prepare the extrusion encapsulation. Lagging; add the extruded rubber into the cavity and directly extrude the mandrel through the extruder at a speed of 1m / min, and then enter the hot air vulcanization oven for vulcanization; the rubber mandrel is in the extrusion process In the middle, through the front drying tunnel 1, the working temperature of the front drying tunnel 1 is 620±50°C, and the surface temperature of the silica gel on the core rod of the drying tunnel: 140±20°C, due to the heat conduction of the quartz heating tube 4, the radiant tube 5 and the vulcanized strengthening tube 6 Due to the dual effects of thermal radiation and heat radiation, the surface of the rubber-coated mandrel quickly reaches the...

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Abstract

The invention relates to a compression joint type squeezing bag penetrating umbrella composite insulator core bar jacket squeezing bag sulfuration process which comprises: carrying out surface treatment on a core bar before use; adding squeezing bag glue to a die space and directly squeezing the core bar out of the bag glue core bar through a squeezing bag machine; fast forming the bag glue core bar in the squeezing process through a front drying tunnel, keeping the working temperature of the front drying tunnel to be 620+ / -50 DEG C, and the surface temperature of silicon glue of the core bar of the front drying tunnel to be 140+ / -20 DEG C; realizing sulfuration and semi-sulfuration to the outer layer of the surface of the bag glue core bar; and enabling the core bar to go into a rear drying tunnel to be completely sulfurized. The process is used for squeezing bag of long bars and can complete squeezing bag and sulfuration in one step, produced composite insulator has good sulfuration quality, high efficiency and no indentation. The process enhances ultraviolet resistance, hydrophobicity and age resistance of an umbrella skirt jacket, strengthens the entire external insulation life of products, solves the difficult problem of quality of traditional sulfuration production, prolongs the aging service life of the composite insulator, and ensures the quality of ultra-high pressure and extra-high pressure composite insulators.

Description

Technical field [0001] The invention relates to a process and equipment for manufacturing composite insulators. Background technique [0002] The mandrel sheath extrusion process is one of the most commonly used processes for synthetic insulator manufacturers at present. It is mainly formed by directly extruding the mandrel through an extruder at room temperature, and then putting it into a vulcanization tank for one-time vulcanization. When extruding the mandrel with the existing mandrel sheath extrusion process, it is very difficult to operate when extruding the long rod, and the extrusion and vulcanization cannot be completed at one time, and the vulcanization effect is not good. Composite insulators pose certain difficulties, and it is difficult to solve the problem of quality fluctuations with ordinary extrusion processes. Improving the current mandrel sheath extruded shed shed process as soon as possible has become an urgent problem to be solved. Contents of the inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B19/00B29C35/02
Inventor 王晓楠吴兆峰杨红军王锋马向方周颖毕成琼
Owner STATE GRID CORP OF CHINA
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