CN104218749A - Manufacturing method for vacuum pressure impregnation (VPI) insulated technology clamp - Google Patents
Manufacturing method for vacuum pressure impregnation (VPI) insulated technology clamp Download PDFInfo
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- CN104218749A CN104218749A CN201310221435.4A CN201310221435A CN104218749A CN 104218749 A CN104218749 A CN 104218749A CN 201310221435 A CN201310221435 A CN 201310221435A CN 104218749 A CN104218749 A CN 104218749A
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- manufacturing
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- vacuum pressure
- clamping plate
- vpi
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- Manufacture Of Motors, Generators (AREA)
Abstract
The invention provides a manufacturing method for vacuum pressure impregnation (VPI) insulated technology clamp. The manufacturing method is characterized in that the technology clamp is of a box assembling structure with an upper clamping plate and a lower clamping plate matched on an L-shaped slip body. The manufacturing method includes: blanking an L-shaped pickling steel plate ranging from 3 to 5 millimeters; bending the pickling steel plate with a numerical-control machine tool prior to performing cleaning and grinding; subjecting the L-shaped pickling steel plate to leaching and stripping prior to putting the same in a 200-DEG C oven for 24-hour thermal treatment. By the box assembling structure with the upper clamping plate and the lower clamping plate matched on the L-shaped split body, production circle of the clamp is shortened, and manufacturing cost of the clamp is lowered; the number of stator bars is increased in a specially-made steel die, utilization rate of the clamp is increased, and production efficiency of the stator bars is also improved; the manufacturing method has the advantages of simpleness in machining method, low machining cost and the like.
Description
Technical field
The invention belongs to vacuum pressure impregnation of high voltage motor VPI insulation technology field, particularly relate to a kind of manufacture method of vacuum pressure impregnation VPI insulating process fixture.
Background technology
My company lowers consumption, improves hydraulic generator service life and operating efficiency, my company have introduced external vacuum pressure impregnation of high voltage motor VPI insulation technology in order to effective energy-conserving and environment-protective at present.Be mainly used in the high-voltage motor insulated treatment technology of 13.8 ten thousand more than KV.In existing production, in hydraulic generator stator coil wrapping main insulation after, with stainless steel fixture to straightway carry out coated, be placed in special steel mold fix straight line clamp, after vacuum pressure impregnation VPI series of process flow process, after going out tank, operator compresses special stainless steel mould straight line position, wastes time and energy again, then will put in baker to heat 165 DEG C and solidifies by mould over the ground.When stator coil mould unloading, the cleaning of mould is crucial.Operator's cleaning remnants be attached on stainless steel mould when painting, to waste time and energy, and stainless steel fixture poor to Resin permeability in the mica paper tape main insulation stator bar insulating barrier held layer by layer, have impact on Resin Absorbent.There is gas in insulating barrier effectively not discharge again, cause line rod to send out empty.Treat that stator coil is produced complete, stainless steel fixture and namely scrapped.And the difficulty of processing of this project organization of stainless steel is very large, cost of raw and processed materials is large, the bad guarantee of precision, fixture cost are high, waste a large amount of raw material, be unfavorable for again the civilized field management of mould, add Mold Making man-hour and operator's labour intensity, also have impact on the production cycle.
Summary of the invention
The invention provides and a kind ofly shorten the production cycle of fixture, reduce the manufacturing cost of fixture, again can in special steel mold, increase stator bar quantity, namely improve the utilance of fixture, also improve the production efficiency of stator bar, there is the manufacture method of the vacuum pressure impregnation VPI insulating process fixture of the advantages such as processing method is simple, processing cost is low.
Technical scheme of the present invention is: a kind of manufacture method of vacuum pressure impregnation VPI insulating process fixture, feature is: technique fixture of the present invention is that L-type split train wheel bridge and lower plate match box-packed combining structure, manufacture method is: lower 3-5 millimeter L-type pickled plate material, bending is carried out with Digit Control Machine Tool, then polishing is cleared up, by the L-type pickled plate leaching demoulding, put into 200 DEG C of baker heat treatments 24 hours.
The advantage that the present invention has and good effect are: present invention employs L-type split train wheel bridge and lower plate match box-packed combining structure, shorten production cycle of fixture, reduce the manufacturing cost of fixture, again can in special steel mold, increase stator bar quantity, namely improve the utilance of fixture, also improve the production efficiency of stator bar, there is the advantages such as processing method is simple, processing cost is low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is side structure schematic diagram of the present invention.
In figure:
1, train wheel bridge 2, lower plate 3, stator bar
Embodiment
Below in conjunction with accompanying drawing, the present invention is elaborated:
As shown in Figure 1, 2, the invention provides a kind of manufacture method of vacuum pressure impregnation VPI insulating process fixture, feature is: technique fixture of the present invention to be L-type split train wheel bridge 1 with lower plate 2 match box-packed combining structure, manufacture method is: lower 3-5 millimeter L-type pickled plate material, bending is carried out with Digit Control Machine Tool, then clear up polishing, by the L-type pickled plate leaching demoulding, put into 200 DEG C of baker heat treatments 24 hours.
The course of work of the present invention: during use, first after stator bar 3 being wrapped up main insulation, to straightway train wheel bridge 1 and lower plate 2 it is coated, stick with glue band fixing, outside glass fiber contraction bands is tied tight, is placed on segmentation in special steel mold and fixes straight line clamping.
The advantages such as the present invention not only processing and fabricating is simple, and installs convenient especially, has not only saved material cost but also has shortened machining period, having had method simple, rational in infrastructure, reliable.
Above one embodiment of the present of invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (1)
1. the manufacture method of a vacuum pressure impregnation VPI insulating process fixture, feature is: technique fixture of the present invention is that L-type split train wheel bridge and lower plate match box-packed combining structure, manufacture method is: lower 3-5 millimeter L-type pickled plate material, bending is carried out with Digit Control Machine Tool, then polishing is cleared up, by the L-type pickled plate leaching demoulding, put into 200 DEG C of baker heat treatments 24 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310221435.4A CN104218749A (en) | 2013-06-05 | 2013-06-05 | Manufacturing method for vacuum pressure impregnation (VPI) insulated technology clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310221435.4A CN104218749A (en) | 2013-06-05 | 2013-06-05 | Manufacturing method for vacuum pressure impregnation (VPI) insulated technology clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104218749A true CN104218749A (en) | 2014-12-17 |
Family
ID=52099971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310221435.4A Pending CN104218749A (en) | 2013-06-05 | 2013-06-05 | Manufacturing method for vacuum pressure impregnation (VPI) insulated technology clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104218749A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3419150A1 (en) * | 2017-06-22 | 2018-12-26 | General Electric Company | Stator bar mold insert |
-
2013
- 2013-06-05 CN CN201310221435.4A patent/CN104218749A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3419150A1 (en) * | 2017-06-22 | 2018-12-26 | General Electric Company | Stator bar mold insert |
| US10784755B2 (en) | 2017-06-22 | 2020-09-22 | General Electric Company | Stator bar mold insert |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141217 |