High-performance toughened porcelain insulator above 420kn level and manufacturing method thereof
A manufacturing method and technology of insulators, applied in the production of clay products, other household utensils, ceramic materials, etc., can solve the problems that cannot meet the needs of the construction of UHV DC transmission lines, etc., achieve high hardness, short manufacturing cycle, and low production cost Effect
Active Publication Date: 2018-12-18
江西高强电瓷集团有限公司
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Problems solved by technology
[0003] The purpose of the present invention is to overcome the defect that the existing technology cannot meet the needs of the construction of UHV DC transmission lines, and provide a high-performance toughened porcelain insulator above 420KN level and its manufacturing method
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[0010] The high-performance toughened porcelain insulator above 420KN grade of the present invention has the mass ratio of raw materials: 10-15% of kaolin, 5-8% of quartz ore, 3-6% of hydromica, 45-50% of bauxite, zirconium 15-20% of quartz, 5-8% of feldspar, 4-6% of waste. The waste is waste porcelain.
[0011] The production method of the present invention: selection of raw materials - metering and batching - ball milling - iron removal and sieving (particle size 250 mesh - 300 mesh) - mud making (to obtain a mixed mud cake with a moisture content of 19-20%) - - stale for 48 hours - vacuum extrusion (extruded in a vacuum mud mixer to obtain a mud section, the vacuum degree is greater than 0.095MPa) - molding - drying (45°C-100°C, so that the moisture content of the mud section is 16- 18%)——blank trimming—blank glaze—oxidation flame firing process is 25°C-100°C (half an hour), 100°C-900°C (4 and a half hours), 900°C to 1250°C (3 hours) , 1250°C-1300°C (2 hours) gradually in...
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Abstract
A 420KN level or more high-performance toughened porcelain insulator is characterized by being made of the raw materials of kaolin, quartz mine, hydromica, bauxite, zirconite, potassium feldspar and waste. The 420KN level or more high-performance toughened porcelain insulator is manufactured through the steps of finely selecting raw materials, metering accessories, ball milling, removing iron and sieving, making into mud, staling, vacuum extruding, forming, drying, fettling, glazing, roasting through oxidizing flame, cementing, electrically logging, packaging, loading into storage and leaving factory. The 420KN level or more high-performance toughened porcelain insulator is short in manufacturing period, low in production cost and convenient to overhaul and maintain. The 420KN level or more high-performance toughened porcelain insulator is a non-metal compound-structure ceramic new material of an ultra-high voltage grid element. The manufactured insulator product has the characteristics of being high in tonnage, high in strength, high in hardness, high in toughness, large in shake resistance, strong in tensile strength, good in high-cold resistance, excellent in performance, reliable in operation and free of aging.
Description
technical field [0001] The invention relates to "high-tech fields supported by the state"—new materials—inorganic non-metallic materials—preparation technology of high-performance ceramic structural parts for special purposes, and specifically relates to a high-performance toughened porcelain insulator above 420KN level its method of manufacture. Background technique [0002] As we all know, with the development of the national power industry in the world and in my country, it is developing towards the intelligent direction of long-distance, large-capacity, ultra-high voltage, and ultra-high voltage direct current transmission. For traditional insulators, high strength, pollution resistance, large creepage distance, and arc resistance have been proposed. , High volume resistance requirements. However, traditional porcelain insulators can no longer meet the needs of the construction of UHV DC transmission lines. Contents of the invention [0003] The purpose of the present...
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IPC IPC(8): C04B33/16C04B33/132C04B33/13C04B33/26
CPCC04B33/131C04B33/1324C04B33/16C04B33/26C04B2235/3217C04B2235/3427C04B2235/3472C04B2235/77C04B2235/96Y02P40/60
Inventor 刘义敏陈招明陈利民
Owner 江西高强电瓷集团有限公司