CN104852336A - Manufacturing process method of mineral insulation bus duct - Google Patents
Manufacturing process method of mineral insulation bus duct Download PDFInfo
- Publication number
- CN104852336A CN104852336A CN201510268191.4A CN201510268191A CN104852336A CN 104852336 A CN104852336 A CN 104852336A CN 201510268191 A CN201510268191 A CN 201510268191A CN 104852336 A CN104852336 A CN 104852336A
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- China
- Prior art keywords
- bus duct
- conductor
- mineral insulation
- magnesium oxide
- powder
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Abstract
The invention discloses a manufacturing process method of a mineral insulation bus duct, which comprises the steps of (1) assembling, that is, a seamless shell and conductors are sent to an assembling platform, then the required conductors are placed in the seamless shell, and the seamless shell is fixed with one ends of the conductors; (2) weighing, that is, weighing is carried out on the shell and the conductors which are well assembled; (3) powder pouring, that is, magnesium oxide powder is poured into the seamless shell and compacted after weighing is finished, a pounding tool is used to impact repeatedly to the optimal filling density so as to be made into a bus duct, and high-temperature solubility moisture-eliminating treatment is carried out before the magnesium oxide powder is poured; and (4) weighing again, that is, weighing is carried out again on the mineral insulation bus duct after being poured with the powder, whether the density of the magnesium oxide powder filled in the seamless shell conforms to process requirements or not is detected, if not, the magnesium oxide powder is filled again until the density of the magnesium oxide powder is qualified. The manufacturing process method disclosed by the invention is simple, and the manufactured mineral insulation bus duct is simple in structure and excellent in performance. The bus duct is good in heat dissipation, great in current-carrying capacity, waterproof, fireproof and explosion-proof, corrosion resistant, long in service life, smoke and halogen free, safe and environmental friendly.
Description
Technical field
The present invention relates to a kind of method of manufacturing technology of mineral insulation bus duct.
Background technology
Now bus duct commercially has pouring bus groove, epoxide resin material as shell and insulating material.This Product Process is complicated, and cause cost high, radiating effect is poor, and equal busbar cross-section need strengthen 2-3 grade, cannot be with plug-in unit.Now commercially major part concentration bus duct, insulation all adopts polyester film, the insulating material maximum permissible temperature of this material thermal endurance class B level is 130 DEG C, when more than 130 DEG C, aging life-span just reduces half, and this insulating material can cause insulation heating because entering electric current or overvoltage aging or puncture, insulating material ageing resistance reduces the service life reduction just equaling bus duct, once insulation resistance is lower than requiring, will puncture short be there is, even cause electrical fire.
Market also there is magnesia powder fill the Chinese patent literature of carrying out insulating and disclose a kind of fireproof bus duct, patent publication No. 102290758A, this bus duct in use mainly relies on the mica tape of conductor outer cladding to be insulating barrier, because this bus duct forms housing (being assembled into tens cover bolts) by upper and lower cover plates left side plate bolt, this bus duct is caused to be difficult to waterproof and dustproof.Often occur leaking powder in transport, use, thus have impact on the fail safe of bus duct.Chinese patent literature discloses a kind of magnesium oxide mineral insulation bus duct, patent No. 103022944A, this bus duct is main in practicality relies on spacer conductor and conductor, locate between conductor and housing, firmly good, this production technology is that the method for first generation bus duct (air-type bus duct) recharges magnesia powder.This complex manufacturing, pour in the housing of spacer to magnesia powder, magnesia powder is easy to cause density inadequate, when burning at fire, damage spacer, when in use big current produces resonance by conductor, spacer easily loosens with aging, probably cause short problem, thus reduce the reliability of bus duct.
Summary of the invention
Because the above-mentioned defect of prior art, technical problem to be solved by this invention is to provide a kind of method of manufacturing technology of mineral insulation bus duct, this method of manufacturing technology is simple, the mineral insulation bus duct structure made is simple, function admirable, this bus duct good heat dissipation, ampacity is large, waterproof fireproofing is explosion-proof, corrosion fatigue life is long, smokeless halogen-free, safety and environmental protection.
For achieving the above object, the invention provides a kind of method of manufacturing technology of mineral insulation bus duct, it is characterized in that, comprise the steps, (1) assemble: seamless casing and conductor are delivered on assembly bench, then required conductor is put into seamless casing and one end of seamless casing and conductor is fixed;
(2) weigh: the housing assembled and conductor are weighed;
(3) powder filling: having weighed pours into seamless casing and compacting afterwards magnesia powder, and repeatedly carry out impacting best packed density make bus duct with smashing holding tool circulation, magnesium oxide first carried out high-temperature digestion degree humidity discharging process before pouring into;
(4) again weigh: again weigh to the mineral insulation bus duct after powder filling, detect the density that institute in seamless casing fills magnesia powder and whether meet technological requirement, as do not met, filling magnesia powder is to qualified again.
The invention has the beneficial effects as follows: this method of manufacturing technology is simple, the mineral insulation bus duct structure made is simple, function admirable, and this bus duct good heat dissipation, ampacity is large, waterproof fireproofing is explosion-proof, corrosion fatigue life is long, smokeless halogen-free, safety and environmental protection.
Accompanying drawing explanation
Fig. 1 is the structural representation of the bus duct that the present invention produces.
In figure: 1, bus duct; 2, conductor; 3, magnesia powder; 4, seamless casing.
Embodiment
The invention discloses a kind of method of manufacturing technology of mineral insulation bus duct, comprise the steps, (1) assemble: seamless casing 4 and conductor 2 are delivered on assembly bench, then required conductor 2 is put into seamless casing 4 and one end of seamless casing 4 and conductor 2 is fixed;
(2) weigh: the seamless casing 4 assembled and conductor 2 are weighed;
(3) powder filling: having weighed pours into seamless casing 4 compacting afterwards magnesia powder 3, and repeatedly carry out impacting best packed density make bus duct 1 with smashing holding tool circulation, magnesia powder 3 first carried out high-temperature digestion degree humidity discharging process before pouring into;
(4) again weigh: again weigh to the mineral insulation bus duct 1 after powder filling, detect the density that institute in seamless casing 4 fills magnesia powder 3 and whether meet technological requirement, as do not met, filling magnesia powder 3 is to qualified again.
Technical problem to be solved by this invention is to provide a kind of method of manufacturing technology of mineral insulation bus duct, this manufacture method material all adopts inorganic material to be only made up of conductor 2, magnesia powder 3 insulator, seamless casing 4, structure is very simple, easy to operate, performance safety.By conductor 2, magnesia powder 3 insulating material, seamless casing 4, by smashing, holding tool impacts conductor 2 to the method, magnesia powder 3 insulating material, seamless casing 4 three form dense compaction body in addition, even if thus make bus duct 1 in transit, use in suffer from fierce collision housing and meet with distortion, magnesia powder 3 and conductor 2, lead in the heart apart from constant between conductor 2 and seamless casing 4, also can not affect the security performance of bus duct 1.This bus duct 1 good heat dissipation, ampacity is large, waterproof fireproofing is explosion-proof, corrosion fatigue life is long, smokeless halogen-free, safety and environmental protection.
This method of manufacturing technology is simple, mineral insulation bus duct 1 structure made is simple, function admirable, if the fusing point adopting copper is 1083 DEG C, the fusing point of magnesia powder 3 is 2800 DEG C, when when fire, temperature is no more than 1000 DEG C, mineral insulation bus duct 1 structure there will not be problem, can ensure the continued power time of more than 3 hours, and this bus duct 1 good heat dissipation, ampacity is large, waterproof fireproofing is explosion-proof, corrosion fatigue life is long, smokeless halogen-free, safety and environmental protection.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just design according to the present invention can make many modifications and variations without the need to creative work.Therefore, all technical staff in the art, all should by the determined protection range of claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (1)
1. a method of manufacturing technology for mineral insulation bus duct, is characterized in that, comprises the steps, (1) assembles: deliver on assembly bench by seamless casing and conductor, then required conductor put into seamless casing and fixed one end of seamless casing and conductor;
(2) weigh: the housing assembled and conductor are weighed;
(3) powder filling: having weighed pours into seamless casing and conductor and compacting afterwards magnesia powder, and repeatedly carry out impacting best packed density make bus duct with smashing holding tool circulation, magnesium oxide first carried out high-temperature digestion degree humidity discharging process before pouring into;
(4) again weigh: again weigh to the mineral insulation bus duct after powder filling, detect the density that institute in seamless casing fills magnesia powder and whether meet technological requirement, as do not met, filling magnesia powder is to qualified again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510268191.4A CN104852336A (en) | 2015-05-22 | 2015-05-22 | Manufacturing process method of mineral insulation bus duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510268191.4A CN104852336A (en) | 2015-05-22 | 2015-05-22 | Manufacturing process method of mineral insulation bus duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104852336A true CN104852336A (en) | 2015-08-19 |
Family
ID=53851779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510268191.4A Pending CN104852336A (en) | 2015-05-22 | 2015-05-22 | Manufacturing process method of mineral insulation bus duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104852336A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101315820A (en) * | 2007-05-29 | 2008-12-03 | 上海摩恩电气有限公司 | Magnesia powder pouring method in large size mineral insulation fireproof cable production |
| CN202210665U (en) * | 2011-09-27 | 2012-05-02 | 李永勤 | Mineral-insulated fireproof bus duct |
| CN103022944A (en) * | 2011-09-20 | 2013-04-03 | 江苏江鹤滑线电气有限公司 | Magnesium oxide mineral insulation bus |
| CN204333848U (en) * | 2015-01-14 | 2015-05-13 | 重庆联控电气有限公司 | A kind of fireproof bus duct |
-
2015
- 2015-05-22 CN CN201510268191.4A patent/CN104852336A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101315820A (en) * | 2007-05-29 | 2008-12-03 | 上海摩恩电气有限公司 | Magnesia powder pouring method in large size mineral insulation fireproof cable production |
| CN103022944A (en) * | 2011-09-20 | 2013-04-03 | 江苏江鹤滑线电气有限公司 | Magnesium oxide mineral insulation bus |
| CN202210665U (en) * | 2011-09-27 | 2012-05-02 | 李永勤 | Mineral-insulated fireproof bus duct |
| CN204333848U (en) * | 2015-01-14 | 2015-05-13 | 重庆联控电气有限公司 | A kind of fireproof bus duct |
Non-Patent Citations (1)
| Title |
|---|
| 王卫东: "《电缆工艺技术原理及应用》", 30 September 2011 * |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150819 |