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A kind of inorganic fully pouring material for busbar and its preparation method and application

A technology of inorganic materials and pouring materials, which is applied in the field of medium and low voltage busbars, can solve the problems of complex composition, high cost, cracking, etc., and achieve the effects of good corrosion resistance, good fire resistance, and smaller volume

Active Publication Date: 2022-03-29
湖北兴和电力新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The composition is very complex and the cost is high
[0007] For the third-generation resin cast busbar, the applicant found that the existing technology is still based on resin, and the amount of resin and its additives exceeds 50%, but epoxy resin will burn at a certain temperature, and will support combustion when the temperature exceeds a certain temperature; As a result, its explosion-proof and fire-proof properties are not very good
In addition, too much organic matter is prone to cracking under extreme conditions, which has a negative impact on heat dissipation and weather resistance

Method used

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  • A kind of inorganic fully pouring material for busbar and its preparation method and application
  • A kind of inorganic fully pouring material for busbar and its preparation method and application
  • A kind of inorganic fully pouring material for busbar and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1 provides a kind of preparation method for the inorganic all-casting material of busbar, and method comprises the following steps:

[0033] (1) Modification: Put 220.5 kg of 4-6 mesh quartz sand, 367.5 kg of 16-26 mesh quartz sand and 147 kg of 40-70 mesh quartz sand in container one, add 7.35 kg of KH550 solution and mix well, and place in an oven at 120 ℃ drying for 1 h to obtain the main ingredient of the modified inorganic material, which is set aside. Put 46kg of alumina powder and 46kg of superfine wollastonite powder in container 2, add 4.6kg of KH550 solution and mix well, dry in an oven at 120°C for 1 hour to obtain modified inorganic material auxiliary materials, and set aside.

[0034] (2) Primary mixing: Stir and mix 100kg of E51 epoxy resin and 10kg of DINP in container three.

[0035] (3) Secondary mixing: 33 kg of D230 and 5 kg of DMP-30 were added to the mixture obtained in step (2) and stirred evenly to obtain a resin composition.

[0036]...

Embodiment 2

[0040] Embodiment 2 provides a kind of preparation method for the inorganic all-casting material of busbar, and method comprises the following steps:

[0041] (1) Modification: Put 376kg of 4-6 mesh quartz sand, 282kg of 16-26 mesh quartz sand and 94kg of 40-70 mesh quartz sand in container one, add 7.52kg of KH550 solution and mix well, and dry in an oven at 120°C 1h to obtain the main ingredient of the modified inorganic material, and set aside. Put 47kg of alumina powder and 47kg of superfine wollastonite powder in container 2, add 4.7kg of KH550 solution and mix well, dry in an oven at 120°C for 1 hour to obtain modified inorganic material auxiliary materials, and set aside.

[0042] (2) Primary mixing: Stir and mix 100kg of E51 epoxy resin and 10kg of DINP in container three.

[0043] (3) Secondary mixing: add 33 kg of D230 and 7.5 kg of DMP-30 to the mixture obtained in step (2) and stir to obtain a resin composition.

[0044] (4) Mix three times: add the resin composi...

Embodiment 3

[0048] Embodiment 3 provides a kind of preparation method for the inorganic all-casting material of busbar, and method comprises the following steps:

[0049] (1) Modification: Put 370kg of 4-6 mesh quartz sand, 277.5kg of 16-26 mesh quartz sand and 92.5kg of 40-70 mesh quartz sand in container one, add 7.4kg of KH550 solution and mix well, and place in an oven at 120 ℃ drying for 1 h to obtain the main ingredient of the modified inorganic material, which is set aside. Put 46kg of alumina powder and 46kg of superfine wollastonite powder in container 2, add 4.6kg of KH550 solution and mix well, dry in an oven at 120°C for 1 hour to obtain modified inorganic material auxiliary materials, and set aside.

[0050] (2) Primary mixing: Stir and mix 100kg of E51 epoxy resin and 10kg of DINP in container three.

[0051] (3) Secondary mixing: 33 kg of D230 and 5 kg of DMP-30 were added to the mixture obtained in step (2) and stirred evenly to obtain a resin composition.

[0052] (4) M...

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Abstract

The invention discloses an inorganic all-casting material for busbars, a preparation method and application thereof, and belongs to the technical field of medium and low voltage busbars. It is made of the following raw materials in parts by weight: 700-800 parts of inorganic material main material; 130-170 parts of resin composition; Mesh quartz sand and 40-70 mesh quartz sand are compounded according to the mass ratio of 1-5:2-4:1; the resin composition is composed of E51 epoxy resin, polyetheramine curing agent, plasticizer and accelerator The mass ratio is 100:30-36:8-12:2-10; the auxiliary inorganic material is made of alumina powder and ultrafine wollastonite powder at a mass ratio of 0.5-2:1; the main inorganic material Modified by silane coupling agent solution; inorganic material auxiliary materials are modified by silane coupling agent solution.

Description

technical field [0001] The invention relates to the technical field of medium and low-voltage busbars, in particular to an inorganic full-casting material for busbars and its preparation method and application. Background technique [0002] In domestic nuclear power plants and large-scale thermal power plants, transformers and medium-voltage busbars often use common-box busbars with simple structure, large carrying capacity, and convenient manufacturing and construction. Inherent defects such as large amount, condensation, low insulation performance, and short life. In the coastal rainy season, when the air humidity is high in summer, the busbar condensation phenomenon is more obvious, and the generation of condensed water will reduce or even destroy the insulation performance of the common box busbar, resulting in failures. Domestic nuclear power plants have experienced many electrical failures caused by condensation on the common box busbar. In order to avoid the above p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/14C04B111/92
CPCC04B26/14C04B2111/92C04B2111/27C04B2111/28C04B2111/20C04B14/06C04B14/303C04B14/043C04B2103/0068
Inventor 梅春松周锦平陈锐
Owner 湖北兴和电力新材料股份有限公司