CN103603235A - Integral angle ring pressing forming die and method for reactor - Google Patents
Integral angle ring pressing forming die and method for reactor Download PDFInfo
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- CN103603235A CN103603235A CN201310497073.1A CN201310497073A CN103603235A CN 103603235 A CN103603235 A CN 103603235A CN 201310497073 A CN201310497073 A CN 201310497073A CN 103603235 A CN103603235 A CN 103603235A
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Abstract
The invention discloses an integral angle ring pressing forming die and method for a reactor. The die comprises a wet process forming die and a hot pressing forming die. The wet process forming die is used for producing semi-finished products and lays a process basis for final hot pressing forming of products, the hot pressing forming die comprises a male die and a female die which are hollow and are provided with steam interfaces, the lower end of the male die is a convex lower end composed of two inclined planes, and an included angle of the two inclined planes is 90 degrees; the upper end of the female die is a concave upper end composed of two inclined planes, and an included angle of the two inclined planes is 90 degrees. The method comprises a wet process forming process and a hot pressing forming process. The wet process forming process is an auxiliary process for product forming, is mainly used for producing the process semi-finished products and lays a process basis for final hot pressing forming of the products; the hot pressing forming process is a main process for product forming, a frequently-used standard bow-shaped pressing machine is adopted for the hot pressing forming, the pressing machine is in a bow shape, and the bow-shaped pressing machine is suitable for product space rotating pressing.
Description
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Technical field
The present invention relates to whole square ring press-moulding die and forming method for a kind of reactor, belong to reactor part processing technique field.
Background technology
Reactor needs because transformer assembles with whole square ring, layout design has an overlap joint groove, and require product density high (surpass 1.1kg/cm3), mechanical strength good, electrical strength is high, must design, make special-purpose wet moulding and compacting tool set, guarantee height densification and the dimensionally stable of insulating part, to meet instructions for use.The complete dependence on import of integral inverted square ring for current 500kV and above reactor, domestic do not have to produce press-moulding die and the forming method that meets whole square ring quality requirement.
Summary of the invention
Goal of the invention: the problems and shortcomings that exist for prior art, the invention provides whole square ring press-moulding die and forming method for a kind of reactor, solve the product mechanical strength causing because of product density (0.7-0.85kg/cm3) on the low side existing in existing wet therapy forming process technology, the deficiency of insulation electrical performance, reactor of the present invention can produce with the combination of whole square ring press-moulding die and forming method that mechanical strength is high, insulation electrical function admirable, of high quality and at a reasonable price, meets or exceeds the product of import like product performance.
Technical scheme: whole square ring press-moulding die for a kind of reactor, comprises wet moulding mould and hot pressing formation mould;
Described wet moulding mould, for the production of semi-finished product, is carried out technique place mat for the final hot pressing moulding of product, comprises die ontology; Described die ontology is the middle cylinder that is provided with axially extending bore, and cylinder lateral wall upper end is rounding;
Described hot pressing formation mould comprises punch and the die of hollow, and punch and die edge are circumferentially arc (comprising that inclined plane is arc); 90 ° of ，Qi Liang inclined plane, the convex lower end angles that Wei Liang inclined plane, described punch lower end forms, the angle of each inclined plane and vertical direction is 45 °; 90 ° of ，Qi Liang inclined plane, the upper end angles of the spill that Wei Liang inclined plane, described die upper end forms, the angle of each inclined plane and vertical direction is 45 °; On described punch and die, be equipped with vapor interface.
Described die ontology is hollow mould body, and the sidewall of die ontology is provided with a plurality of air-vents, is convenient to technique semi-finished product drainage and moisture evaporation.
Described air-vent is Φ 6 air-vents, is 40*40 and is uniformly distributed.
Punch and die are used in conjunction with, and the upper end of punch is plane, and the lower end of die is plane, and die is placed on press bottom surface, are conducive to technique semi-finished product and carry out Space Rotating at 45° angle obliquely; For preventing that obvious concavo-convex vestige from appearring in mobile compacting intersection, the edge of punch and die all adopts the angle of falling R20 rounding off, and the edge of its convex mould and die all refers to two orthogonal edges, inclined plane.
The circumferential circular arc arc length of the punch of hot pressing shaping mould and die is 800mm ± 20mm, and radial width and height are by products radial width, highly respectively add 50mm allowance.
A whole square ring briquetting process for reactor, comprises wet moulding operation and hot pressing molding procedure; Wherein
1, wet moulding operation:
This operation is the aided process of formed product, is mainly production technology semi-finished product, is the final compressing technique place mat of carrying out of product.Specific implementation process:
1. by the fabric width of whole square ring semi-finished product l Water Paper (l Water Paper base) placement that faces up for reactor, product short transverse is scheme down vertically; Product R protrudes at position outwardly;
2. the semi-finished product l Water Paper of high density insulating board is coated on wet moulding mould, then with binding piece by l Water Paper base tightly colligation to wet moulding mould;
3. together with wet moulding mould, put stereotyped l Water Paper base into baking oven, adopt three sections of stoving processes to be dried;
4. after dry end, by dried technique semi-finished product, on wet moulding mould fully after cooling and shaping, the binding piece of dismantle processes surface of semi-finished, takes out technique semi-finished product;
5. the technique semi-finished product that take out are carried out to just refine operation of subsequent product, product width direction, short transverse are stayed respectively the allowance of 30mm-40mm, and technique semi-finished product are transported to hot pressing molding procedure;
2, hot pressing molding procedure
This operation is the master operation of formed product, and hot pressing moulding adopts conventional Standard arch wire press, the outer image " bow " of press, and this arc press is applicable to product space rotation compacting.
Specific implementation process:
1. the punch of hot pressing formation mould and die are separately fixed to rear (die is placed on arc press bottom surface) on arc press, the punch and the die that separate press-moulding die, technique semi-finished product are properly placed on hot pressing formation mould, attention should will be suppressed with respect to the position of center of circle symmetry in advance with technique semi-finished product groove, and the object of doing is like this to be conducive to finally suppress groove part;
2. after technique semi-finished product are fixed on hot pressing formation mould, adopt bracing frame supporting process semi-finished product simultaneously, place nylon roller on bracing frame, technique semi-finished product contact with nylon roller, and established technology semi-finished product are directly supported by nylon roller; Then open supersaturated vapor valve, steam is entered in the hollow cavity of punch and die by the vapor interface of hot pressing formation mould;
3. the hot pressing time is set as 20-30 minute, and the cooling and shaping time is 15-25 minute;
4. the punch of slow closed hot pressing formation mould and die carry out the compacting of technique semi-finished product, arrive technique initialization after the time, carry out that technique is half-finished to be moved for the first time, technique semi-finished product are moved to at least two of arc length that previous step suppressed/stop for the moment along hot pressing formation mould arc surface; By aforesaid operations, undertaken compressing for the second time;
5. repeating aforesaid operations to groove part divides while leaving 200mm ± 10mm length and suspends;
6. again technique semi-finished product are started to mobile compacting along the another side at the position of groove symmetry;
7. repeating aforesaid operations to groove part divides while leaving 200mm ± 10mm length and suspends;
8. finally groove part is divided and suppressed, compacting finishes rear product and has just substantially reached drawing required diameter.Note measuring actual product diameter now simultaneously, can suitably adjust groove length (groove length regulates in ± 10mm) and finely tune diameter, by the requirement of drawing diameter, rule and carry out mark;
9. outward appearance, dimension control are carried out refine after qualified;
10. product final inspection and packing.
Described binding piece is elastic cord.
Beneficial effect: compared with prior art, whole square ring press-moulding die and forming method for reactor provided by the invention, can make the product of producing reach IEC60641.3.1 international standard, R angle size uniformity, density is at 1.1 ~ 1.25kg/cm3, mechanical strength is good, and electrical strength is high, and product is not yielding etc.
Accompanying drawing explanation
Fig. 1 is the top view of embodiment of the present invention wet moulding mould;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is that in the embodiment of the present invention, l Water Paper base is coated to the view on wet moulding mould;
Fig. 4 is the top view of embodiment of the present invention hot pressing formation mould, and wherein, dotted portion is punch and place, R20 angle, die edge, and B-B view is punch and R20 angle part, die edge schematic diagram;
Fig. 5 is the A-A cutaway view of Fig. 4;
Machining state figure when Fig. 6 is embodiment of the present invention hot pressing moulding;
In figure, 1, die ontology 2, air-vent 3, technique semi-finished product 34, nylon roller 5, bracing frame inner tube 6, retaining adjustment screw 7, bracing frame outer tube 8, punch 9, vapor interface 10, die 11, l Water Paper base 21, arc press a, inclined plane.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, should understand these embodiment is only not used in and limits the scope of the invention for the present invention is described, after having read the present invention, those skilled in the art all fall into the application's claims limited range to the modification of the various equivalent form of values of the present invention.
Whole square ring press-moulding die for reactor, comprises wet moulding mould and hot pressing formation mould;
Wet moulding mould, for the production of semi-finished product, is carried out technique place mat for the final hot pressing moulding of product, and as shown in Figure 1-2, wet moulding mould comprises hollow mould body 1; Die ontology 1 is the middle cylinder that is provided with axially extending bore, and cylinder lateral wall upper end is rounding; The sidewall of die ontology is provided with a plurality of air-vents 2, is convenient to technique semi-finished product 3 drainages and moisture evaporation.Air-vent 2 is Φ 6 air-vents 2, is 40*40 and is uniformly distributed.
As shown in Fig. 4-5, hot pressing formation mould comprises punch 8 and the die 10 of hollow, and punch 8 and die 10 edges are circumferentially arc (comprising that inclined plane a is arc); 90 ° of ，Liang inclined plane, the convex lower end a angles that punch 8 Wei Liang inclined plane, lower end a form, the size that the middle round-corner transition in two inclined planes is product R size (below roughly the same) R angle requires to do according to customer order; The angle of each inclined plane a and vertical direction is 45 °; 90 ° of ，Liang inclined plane, the upper end a angles of the spill that die 10 Wei Liang inclined plane, upper end a form, each inclined plane a is 45 ° about the angle of vertical direction; On punch 8 and die 10, be equipped with vapor interface 9.
Punch 8 and die 10 are used in conjunction with up and down, and the upper end of punch 8 is plane, and the lower end of die 10 is plane, and die 10 is placed on arc press 21 bottom surfaces, are conducive to technique semi-finished product 3 and carry out Space Rotating at 45° angle obliquely; For preventing that obvious concavo-convex vestige from appearring in mobile compacting intersection, the edge of punch 8 and die 10 all adopts the angle of falling R20 rounding off, and the edge of its convex mould 8 and die 10 all refers to the two orthogonal edges of inclined plane a.
The punch 8 of hot pressing shaping mould and the circumferential circular arc arc length of die 10 are 800mm, and radial width and height are by products radial width and highly respectively add 50mm allowance.
Whole square ring briquetting process for reactor, comprises wet moulding operation and hot pressing molding procedure; Wherein
1, wet moulding operation:
This operation is the aided process of formed product, is mainly production technology semi-finished product 3, is the final compressing technique place mat of carrying out of product.Specific implementation process:
1. by the fabric width of whole square ring product semi-finished product l Water Paper (the l Water Paper base 11) placement that faces up for reactor, product short transverse (arc surface) is scheme down vertically.Product R protrudes at position outwardly, is conducive to wet moulding.
2. as shown in Figure 3, the semi-finished product l Water Paper of high density insulating board (l Water Paper base 11) is coated on wet moulding mould, overlap joint groove (U place in Fig. 3) separates with clean nylon wire, be convenient to drainage and oven dry, the elastic cord of then using thick 1.5 mm of wide 50 mm * by l Water Paper base tightly colligation to wet moulding mould; Overlap joint groove U size need increase 10mm.
3. together with wet moulding mould, put stereotyped l Water Paper base 11 into baking oven, adopt three sections of stoving processes to be dried: first with 80, spend low temperature preliminary drying 4 hours, in 100 degree, temperature is dewatered, shaped 8 hours, 120 degree oven dry 12 hours.
4. after dry end, dried technique semi-finished product 3(l Water Paper base 11, after shaping and drying, is called to technique semi-finished product 3) abundant cooling and shaping 12 hours on wet moulding mould, the elastic cord on dismantle processes semi-finished product 3 surfaces, takes out technique semi-finished product 3.
5. the technique semi-finished product 3 that take out are carried out to just refine operation of subsequent product, technique semi-finished product 3 radial width directions, short transverse are stayed respectively 30mm allowance, and the technique semi-finished product 3 after first refine are transported to hot pressing molding procedure.
2, hot pressing molding procedure
This operation is the master operation of formed product, and hot pressing moulding adopts conventional Standard arch wire press 21, the outer image of arc press 21 " bow ", and this arc press 21 is applicable to product space rotation compacting.
Specific implementation process:
1. as shown in Figure 6, the punch of hot pressing formation mould 8 and die 10 are separately fixed to rear (die 10 is placed on arc press 21 bottom surfaces) on arc press 21, the punch 8 and the die 10 that separate press-moulding die, technique semi-finished product 3 are properly placed on hot pressing formation mould, attention should will be suppressed with respect to the position of center of circle symmetry in advance with technique semi-finished product 3 grooves, and the object of doing is like this to be conducive to finally suppress groove part.
2. after technique semi-finished product 3 are fixed on hot pressing formation mould, adopt 3 stainless steel bracing frame supporting process semi-finished product 3 simultaneously, for preventing deformation of products, on bracing frame, place the nylon roller 4 with bearing, product only contacts with nylon roller 4, can prevent the pollution that product is caused by external factor like this, be convenient to the rotation of product moving process simultaneously.Open supersaturated vapor valve, steam is entered in the hollow cavity of punch 8 and die 10 by the vapor interface 9 of hot pressing formation mould.
Bracing frame comprises feet, bracing frame inner tube 5, retaining adjustment screw 6, bracing frame outer tube 7 and supporting surface; Bracing frame inner tube 5 and bracing frame outer tube 7 are stainless steel square tube, and feet is located at the bottom of bracing frame outer tube 7; Bracing frame inner tube 5 lower ends probe in bracing frame outer tube 7, and the relative bracing frame outer tube 7 of bracing frame inner tube 5 can move up and down, thus the height of adjusting support frame, and by retaining adjustment screw 6, bracing frame inner tube 5 is connected with bracing frame outer tube 7; Supporting surface is located at the upper end of bracing frame inner tube 5, and supporting surface is by nylon roller 4 supporting process semi-finished product 3.
3. the hot pressing time is set as 25 minutes, and the cooling and shaping time is 20 minutes.
4. the punch 8 of slow closed hot pressing formation mould and die 10 carry out 3 compactings of technique semi-finished product, arrive technique initialization after the time, carry out moving for the first time of technique semi-finished product 3, by technique semi-finished product 3, along hot pressing formation mould arc surface, (inclined plane a) moves to two of arc length that previous step suppressed/stop for the moment (must overlap 1/2 while at every turn suppressing).By aforesaid operations, undertaken compressing for the second time.
5. repeating aforesaid operations to groove part divides while leaving 200mm length and suspends.
6. again technique semi-finished product 3 are started to mobile compacting along the another side at the position of groove symmetry.
7. repeating aforesaid operations to groove part divides while leaving 200mm length and suspends.
8. finally groove part is divided and suppressed, compacting finishes rear product and has just substantially reached drawing required diameter.Note measuring actual product diameter now simultaneously, can suitably adjust groove length (groove length regulates in ± 10mm) and finely tune diameter, by the requirement of drawing diameter, rule and carry out mark.
9. outward appearance, dimension control are carried out refine after qualified, form finished product.
10. to finished product final inspection and packing.
Claims (10)
1. a whole square ring press-moulding die for reactor, is characterized in that: comprise wet moulding mould and hot pressing formation mould;
Described wet moulding mould, for the production of semi-finished product, is carried out technique place mat for the final hot pressing moulding of product, comprises die ontology; Described die ontology is the middle cylinder that is provided with axially extending bore, and cylinder lateral wall upper end is rounding;
Described hot pressing formation mould comprises punch and the die of hollow, and punch and die edge are circumferentially arc (comprising that inclined plane is arc); 90 ° of ，Qi Liang inclined plane, the convex lower end angles that Wei Liang inclined plane, described punch lower end forms, the angle of each inclined plane and vertical direction is 45 °; 90 ° of ，Qi Liang inclined plane, the upper end angles of the spill that Wei Liang inclined plane, described die upper end forms, the angle of each inclined plane and vertical direction is 45 °; On described punch and die, be equipped with vapor interface.
2. whole square ring press-moulding die for reactor as claimed in claim 1, is characterized in that: described die ontology is hollow mould body, and the sidewall of die ontology is provided with a plurality of air-vents.
3. whole square ring press-moulding die for reactor as claimed in claim 2, is characterized in that: described air-vent is Φ 6 air-vents, is 40*40 and is uniformly distributed.
4. whole square ring press-moulding die for reactor as claimed in claim 1, it is characterized in that: punch and die are used in conjunction with, the upper end of punch is plane, the lower end of die is plane, die is placed on press bottom surface, the edge of punch and die all adopts the angle of falling R20 rounding off, and the edge of its convex mould and die all refers to two orthogonal edges, inclined plane.
5. whole square ring press-moulding die for reactor as claimed in claim 1, it is characterized in that: the circumferential circular arc arc length of the punch of hot pressing shaping mould and die is 800mm ± 20mm, radial width and height are by products radial width, highly respectively add 50mm allowance.
6. a whole square ring briquetting process for reactor, is characterized in that: comprise wet moulding operation and hot pressing molding procedure; Wherein
1, wet moulding operation:
1. the placement that product width faced up, product short transverse is scheme down vertically; Product R protrudes at position outwardly;
2. the semi-finished product l Water Paper of high density insulating board is coated on wet moulding mould, then with binding piece by l Water Paper base tightly colligation to wet moulding mould;
3. together with wet moulding mould, put stereotyped l Water Paper base into baking oven, adopt three sections of stoving processes to be dried;
4. after dry end, by dried technique semi-finished product, on wet moulding mould fully after cooling and shaping, the binding piece of dismantle processes surface of semi-finished, takes out technique semi-finished product;
5. the technique semi-finished product that take out are carried out to just refine operation of subsequent product, product width direction, short transverse are stayed respectively the allowance of 30mm-40mm, and technique semi-finished product are transported to hot pressing molding procedure;
2, hot pressing molding procedure
Specific implementation process:
1. the punch of hot pressing formation mould and die are separately fixed to rear (die is placed on arc press bottom surface) on arc press, the punch and the die that separate press-moulding die, technique semi-finished product are properly placed on hot pressing formation mould, attention should will be suppressed with respect to the position of center of circle symmetry in advance with technique semi-finished product groove, and the object of doing is like this to be conducive to finally suppress groove part;
2. after technique semi-finished product are fixed on hot pressing formation mould, adopt bracing frame supporting process semi-finished product simultaneously, place nylon roller on bracing frame, technique semi-finished product contact with nylon roller, and established technology semi-finished product are directly supported by nylon roller; Then open supersaturated vapor valve, steam is entered in the hollow cavity of punch and die by the vapor interface of hot pressing formation mould;
3. the hot pressing time is set as 20-30 minute, and the cooling and shaping time is 15-25 minute;
4. the punch of slow closed hot pressing formation mould and die carry out the compacting of technique semi-finished product, arrive technique initialization after the time, carry out that technique is half-finished to be moved for the first time, technique semi-finished product are moved to at least two of arc length that previous step suppressed/stop for the moment along hot pressing formation mould arc surface; By aforesaid operations, undertaken compressing for the second time;
5. repeating aforesaid operations to groove part divides while leaving 200mm ± 10mm length and suspends;
6. again technique semi-finished product are started to mobile compacting along the another side at the position of groove symmetry;
7. repeating aforesaid operations to groove part divides while leaving 200mm ± 10mm length and suspends;
8. finally groove part is divided and suppressed, compacting finishes rear product and has just substantially reached drawing required diameter.
7. note measuring actual product diameter now simultaneously, can suitably adjust groove length (groove length regulates in ± 10mm) and finely tune diameter, by the requirement of drawing diameter, rule and carry out mark.
8. whole square ring briquetting process for reactor as claimed in claim 6, it is characterized in that: described step 2. in, at overlap joint groove, with clean nylon wire, separate, be convenient to drainage and oven dry, the elastic cord of then using the thick 1.5mm of wide 50mm* by l Water Paper base tightly colligation on wet moulding mould with binding piece by l Water Paper base tightly colligation to wet moulding mould; Overlap joint groove size need increase 10mm.
9. whole square ring briquetting process for reactor as claimed in claim 6, it is characterized in that: 3. step puts stereotyped l Water Paper base 11 into baking oven together with wet moulding mould, adopt three sections of stoving processes to be dried: first with 80, to spend low temperature preliminary drying 4 hours, in 100 degree, temperature is dewatered, is shaped 8 hours, and 120 degree are dried 12 hours.
10. whole square ring briquetting process for reactor as claimed in claim 6, is characterized in that: step is 4. after dry end, by dried technique semi-finished product 3 abundant cooling and shaping 12 hours on wet moulding mould.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310497073.1A CN103603235B (en) | 2013-10-22 | 2013-10-22 | A kind of reactor overall square ring press-moulding die and forming method |
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| CN201310497073.1A CN103603235B (en) | 2013-10-22 | 2013-10-22 | A kind of reactor overall square ring press-moulding die and forming method |
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| CN103603235B CN103603235B (en) | 2015-12-23 |
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Cited By (3)
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| CN109706796A (en) * | 2019-02-20 | 2019-05-03 | 株洲时代新材料科技股份有限公司 | Hot pressing die, product and the forming method of allotype insulation molded part |
| CN110171166A (en) * | 2019-06-30 | 2019-08-27 | 山东达驰驰翔电气有限公司 | A kind of transformer square ring manufacturing machine |
| CN111775481A (en) * | 2020-07-06 | 2020-10-16 | 江西普雷伊顿电气有限公司 | Damping type angle ring pressing machine |
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| CN111775481A (en) * | 2020-07-06 | 2020-10-16 | 江西普雷伊顿电气有限公司 | Damping type angle ring pressing machine |
| CN111775481B (en) * | 2020-07-06 | 2022-01-28 | 江西普雷伊顿电气有限公司 | Damping type angle ring pressing machine |
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| Publication number | Publication date |
|---|---|
| CN103603235B (en) | 2015-12-23 |
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