CN208584710U - Epoxy insulation vacuum pouring mold with cooling structure - Google Patents
Epoxy insulation vacuum pouring mold with cooling structure Download PDFInfo
- Publication number
- CN208584710U CN208584710U CN201821095334.1U CN201821095334U CN208584710U CN 208584710 U CN208584710 U CN 208584710U CN 201821095334 U CN201821095334 U CN 201821095334U CN 208584710 U CN208584710 U CN 208584710U
- Authority
- CN
- China
- Prior art keywords
- mold
- ontology
- sprue gate
- slot
- casting mold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000004593 Epoxy Substances 0.000 title claims abstract description 19
- 238000009413 insulation Methods 0.000 title claims abstract description 13
- 238000001816 cooling Methods 0.000 title claims abstract description 12
- 238000005266 casting Methods 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000203 mixture Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 4
- 238000004512 die casting Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 238000009835 boiling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Insulating Bodies (AREA)
Abstract
The utility model discloses a kind of epoxy insulation vacuum pouring mold with cooling structure, including casting mold ontology, the sprue gate of the casting mold ontology is located at the top of casting mold ontology, the casting mold ontology includes core model and external mold, the top of the external mold is equipped with annular boiled water slot, the annular boiled water slot position is in the outside at sprue gate, the height of the core model is higher than the height of external mold, the top of the casting mold ontology is equipped with cover board, the bottom of the cover board is equipped with groove, the width of the groove face core model and groove is slightly larger than the width with core model, the centre of the cover board is equipped at least two through slot, through slot face sprue gate.The utility model is equipped with annular boiled water slot at the top of external mold, i.e., annular boiled water slot is enclosed around sprue gate one, to ensure that film has the temperature at sprue gate lower than mold middle and lower part, final epoxy mixture is lower part → middle part → top in the curing reaction sequence of mold.
Description
Technical field
The utility model relates to a kind of high-tension power transmission and transformation equipments, especially the epoxy insulation vacuum pouring mould with cooling structure
Tool.
Background technique
Epoxy insulation is the most important insulating products of high-voltage electrical apparatus, and there are mainly two types of production methods, i.e., vacuum pouring and
APG pressure injection.But the epoxy insulator of 110KV above is directed to due to used epoxide resin material property
(molecular weight and viscosity) is different, and uses vacuum pouring.
Vacuum pouring needs mixing, casting mold at a temperature of 130-140 DEG C to be firstly placed in 130 DEG C of baking oven and preheat, pour
Mold is put into vacuum pouring tank when note, the mixture of high temperature by pouring can upper pipe by great ?pressure and self gravity make
With flowing into mold, mold is sent into hot setting and is shared after continuing vacuum outgas 10-30 minutes after filling to be continued to solidify.
The mixture temperature of vacuum pouring is higher, therefore the energy first choice in curing reaction is the energy from mixture itself
Amount, the reaction of mixture system is more fierce when reaction, and exothermic heat of reaction is very big.And it is general from vacuum pouring mold from baking oven is cured to
It wants 2 hours that can just start sticky, gel, continue heat release after becoming rubber-elastic state material and shrinks, the receipts of entire pour mass
Shrinkage reaches 2%-3% or so.
For casting mold in 130 DEG C of baking oven, sprue gate is that 130 DEG C of high temperature in open exposure, with baking oven are
It directly contacts, therefore the curing rate at sprue gate is faster than the lower part of casting mold, and the temperature in baking oven is uneven
It is even, lower part is partially higher than in the temperature in general baking oven, the epoxy at sprue gate mixes the gel that can take the lead in always, solidification.Cause
Entirely it is gradually gradually gel solidification from top to bottom.The shrink defects for solidifying the 2-3% generated just appear in each portion of product
Point, so that product outer surface forms irregular recess piebald.
Utility model content
A kind of ring with cooling structure is provided purpose of the utility model is to solve above-mentioned the deficiencies in the prior art
Oxygen insulation vacuum pouring mold.
To achieve the goals above, the epoxy insulation vacuum pouring mold designed by the utility model with cooling structure,
Including casting mold ontology, the sprue gate of the casting mold ontology is located at the top of casting mold ontology, the casting mold
Ontology includes core model and external mold, and the top of the external mold is equipped with annular boiled water slot, and the annular boiled water slot position is in the outer of sprue gate
Portion, the height of the core model are higher than the height of external mold, and the top of the casting mold ontology is equipped with cover board, the bottom of the cover board
Portion is equipped with groove, and slightly larger than the width with core model, the centre of the cover board is equipped with the width of the groove face core model and groove
At least two through slot, through slot face sprue gate.
In order to facilitate opening, the top of the cover board is equipped with hanging ring.
After casting mold ontology enters baking oven, water is filled in annular boiled water slot, since the boiling point of water is 100 DEG C, therefore
The heat of die casting oral area position can be absorbed, so that the temperature of die casting mouth is lower than mold middle and lower part, final epoxy
Mixture is lower part → middle part → top in the curing reaction sequence of mold, and is produced from the sprue gate that is contracted in of the 2-3% after solidifying
It is raw, it only needs to fill sprue gate at this time, to ensure that the complete of product.
Water body splashes in order to prevent, therefore is equipped with cover board at the top of casting mold ontology, and the effect of the groove is limit
Position, the effect of the through slot are heat dissipations.In the curing process, need to add once every 30min in the solidification process of 2 hours early periods
Water.Solidifying after final 20 hours terminates, and is opened pickup.
The epoxy insulation vacuum pouring mold with cooling structure that the utility model obtains, its technical effect is that in external mold
Top is equipped with annular boiled water slot, i.e., annular boiled water slot is enclosed around sprue gate one, to ensure that the temperature at film tool sprue gate is lower than
Mold middle and lower part, final epoxy mixture are lower part → middle part → top in the curing reaction sequence of mold.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the epoxy insulation vacuum pouring mold with cooling structure of embodiment 1；
Fig. 2 is the structural schematic diagram of the epoxy insulation vacuum pouring mold cover plate with cooling structure of embodiment 1.
In figure: casting mold ontology 1, sprue gate 2, core model 3, external mold 4, annular boiled water slot 5, cover board 6, groove 7, through slot 8,
Hanging ring 9, epoxy mixture 10.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
Embodiment 1:
As shown in Figs. 1-2, the epoxy insulation vacuum pouring mold provided in this embodiment with cooling structure, including casting moulds
Has ontology 1, the sprue gate 2 of the casting mold ontology 1 is located at the top of casting mold ontology 1, and the casting mold ontology 1 wraps
Core model 3 and external mold 4 are included, the top of the external mold 4 is equipped with annular boiled water slot 5, and the annular boiled water slot 5 is located at the outer of sprue gate 2
Portion, the height of the core model 3 are higher than the height of external mold 4, and the top of the casting mold ontology 1 is equipped with cover board 6, the cover board
6 bottom is equipped with groove 7, and the width of the 7 face core model 3 of groove and groove 7 is slightly larger than the width with core model 3, the cover board 6
Centre be equipped at least two through slot 8, the 8 face sprue gate 2 of through slot.
In order to facilitate opening, the top of the cover board 6 is equipped with hanging ring 9.
After casting mold ontology 1 enters baking oven, water is filled in annular boiled water slot 5, since the boiling point of water is 100 DEG C,
Therefore the heat at 2 position of die casting mouth can be absorbed, so that the temperature at sprue gate 2 is lower than mold middle and lower part, final epoxy
Mixture 10 is lower part → middle part → top in the curing reaction sequence of mold, and is produced from the sprue gate that is contracted in of the 2-3% after solidifying
It is raw, it only needs to fill sprue gate 2 at this time, to ensure that the complete of product.In the curing process, consolidated early period 2 hours
A water need to be added every 30min during change.Solidifying after final 20 hours terminates, and is opened pickup.
Claims (2)
1. a kind of epoxy insulation vacuum pouring mold with cooling structure, including casting mold ontology (1), it is characterised in that: institute
The sprue gate (2) for stating casting mold ontology (1) is located at the top of casting mold ontology (1), and the casting mold ontology (1) includes
Core model (3) and external mold (4), the top of the external mold (4) are equipped with annular boiled water slot (5), and the annular boiled water slot (5) is located at casting
The outside of mouth (2), the height of the core model (3) are higher than the height of external mold (4), set at the top of the casting mold ontology (1)
Have cover board (6), the bottom of the cover board (6) is equipped with groove (7), the width of groove (7) the face core model (3) and groove (7)
Slightly larger than the width with core model (3), the centre of the cover board (6) is equipped at least two through slot (8), through slot (8) the face casting
Mouth (2).
2. the epoxy insulation vacuum pouring mold according to claim 1 with cooling structure, it is characterised in that: the cover board
(6) top is equipped with hanging ring (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821095334.1U CN208584710U (en) | 2018-07-11 | 2018-07-11 | Epoxy insulation vacuum pouring mold with cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821095334.1U CN208584710U (en) | 2018-07-11 | 2018-07-11 | Epoxy insulation vacuum pouring mold with cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208584710U true CN208584710U (en) | 2019-03-08 |
Family
ID=65540510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821095334.1U Expired - Fee Related CN208584710U (en) | 2018-07-11 | 2018-07-11 | Epoxy insulation vacuum pouring mold with cooling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208584710U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113733427A (en) * | 2021-09-07 | 2021-12-03 | 广东四会互感器厂有限公司 | Hot curing feeding process for composite material by using casting mold |
-
2018
- 2018-07-11 CN CN201821095334.1U patent/CN208584710U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113733427A (en) * | 2021-09-07 | 2021-12-03 | 广东四会互感器厂有限公司 | Hot curing feeding process for composite material by using casting mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190308 |