CN104292767A - Vacuum casting mold material used for electrical insulation parts, and preparation method of mold - Google Patents
Vacuum casting mold material used for electrical insulation parts, and preparation method of mold Download PDFInfo
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- CN104292767A CN104292767A CN201410015608.1A CN201410015608A CN104292767A CN 104292767 A CN104292767 A CN 104292767A CN 201410015608 A CN201410015608 A CN 201410015608A CN 104292767 A CN104292767 A CN 104292767A
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- mould
- parts
- mold
- vacuum pouring
- electric insulation
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- 239000000463 material Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 238000005266 casting Methods 0.000 title abstract description 4
- 238000010292 electrical insulation Methods 0.000 title abstract 3
- 239000000843 powder Substances 0.000 claims abstract description 37
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000003822 epoxy resin Substances 0.000 claims abstract description 25
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 25
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 23
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000004411 aluminium Substances 0.000 claims abstract description 19
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 238000009413 insulation Methods 0.000 claims description 29
- 238000000465 moulding Methods 0.000 claims description 17
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 10
- MWSKJDNQKGCKPA-UHFFFAOYSA-N 6-methyl-3a,4,5,7a-tetrahydro-2-benzofuran-1,3-dione Chemical group C1CC(C)=CC2C(=O)OC(=O)C12 MWSKJDNQKGCKPA-UHFFFAOYSA-N 0.000 claims description 7
- 150000008065 acid anhydrides Chemical class 0.000 claims description 7
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 6
- 229910000077 silane Inorganic materials 0.000 claims description 6
- 238000011417 postcuring Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 5
- VYKXQOYUCMREIS-UHFFFAOYSA-N methylhexahydrophthalic anhydride Chemical compound C1CCCC2C(=O)OC(=O)C21C VYKXQOYUCMREIS-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 238000005516 engineering process Methods 0.000 abstract description 8
- 238000010125 resin casting Methods 0.000 abstract description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 150000008064 anhydrides Chemical class 0.000 abstract 1
- 229940106691 bisphenol a Drugs 0.000 abstract 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000003672 processing method Methods 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000013036 cure process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Abstract
The invention discloses a vacuum casting mold material used for electrical insulation parts, and a preparation method of a mold, and belongs to the technical field of electrical manufacturing and power equipment. The mold material is mainly composed of the following raw materials by weight: 95-110 parts of bisphenol-A type epoxy resin, 25-35 parts of an anhydride curing agent, 110-130 parts of metal aluminium powder and 60-80 parts of alumina powder. According to the invention, an epoxy resin casting material is adopted; a conventional casting technology and a rapid forming technology are combined; the time required by the method is about 1/3 of a conventional mold processing method; and the method has the characteristics of short mold preparation period, low cost, high precision and long service life. Besides, the mold has light weight, can be repaired easily, can meet production and use requirements well, can reduce labor intensity significantly and has significant economic benefits. Thermal conductivity, and mechanical and technological performances of the mold can meet requirements for a manufacturing process of the electrical insulation parts; heat conductivity coefficient of the mold is 2.5-5.4 W.m<-1>K<-1>; a tensile strength is 75-105 MPa; and a compression strength is 180-220 MPa.
Description
Technical field
The present invention is specifically related to a kind of electric insulation part vacuum pouring moulding stock, and the preparation method of this mould, belongs to Electric Manufacture and electrical equipment technical field.
Background technology
Along with industrial production is gradually to the future development of multi items, short run, high quality, low cost, people start requirement and control the construction cycle of mould (manufacturing the critical process equipment of various product) and manufacturing cost.Epoxy resin casting mold is by different structures and purpose classification, as switching cabinet insulated product, because its size is little, batch production time same class product number of molds demand many, and accuracy requirement is not too high, adopt epoxy resin casting mold to shorten the moulding cycle, repeated mould can mass production, and the starting material that epoxy resin casting mold uses are lightweight relative to traditional moulds material, be easy to repair, and low price, significantly can reduce labor strength.
At present, epoxide resin vacuum casting mold technology is generally applied in industrial systems such as automobile industry, toy production, household appliances manufacturing, hardware industry and plastics.Along with the development of novel material, new technology and the popularization of epoxy resin utilisation technology, the over-all properties of epoxy resin mould and manufacturing technology is widely understood and understanding, in addition the raising of epoxide resin material performance and the simplification of resin die manufacture craft and application art, epoxy resin mould obtains rapid development, becomes new high-level efficiency, the advanced mould of low cost.But, in mesolow insulated product industry, the domestic application example still not having such mould.
Summary of the invention
The object of this invention is to provide a kind of electric insulation part vacuum pouring moulding stock.
Meanwhile, the present invention also provides a kind of preparation method of electric insulation part vacuum pouring mould.
In order to realize above object, the technical solution adopted in the present invention is:
A kind of electric insulation part vacuum pouring moulding stock, the raw material primarily of following parts by weight forms: bisphenol A type epoxy resin 95 ~ 110 parts, acid anhydride type curing agent 25 ~ 35 parts, metallic aluminium powder 110 ~ 130 parts, aluminum oxide powder 60 ~ 80 parts.
Concrete, a kind of electric insulation part vacuum pouring moulding stock, can also comprise the raw material of following parts by weight: mill base 1 ~ 2 part.
The viscosity of described bisphenol A type epoxy resin at 25 DEG C is 4000 ~ 7000mPas, and second-order transition temperature is 130 ~ 140 DEG C.
The viscosity of described acid anhydride type curing agent at 25 DEG C is 1000 ~ 3000mPas; Preferable methyl tetrahydrophthalic anhydride or methyl hexahydrophthalic anhydride.
Described metallic aluminium powder is through silane treatment, and its particle diameter is 1.5 ~ 5 microns, purchased from ocean Aluminum company limited, is the aluminium powder finished product after silane treatment.
The particle diameter of described aluminum oxide powder is 300 ~ 350 orders.
Described mill base is commercial goods, can need to determine according to color.
A preparation method for electric insulation part vacuum pouring mould, comprises the following steps:
(1) first by aluminum oxide powder preheating 4 ~ 6h at 90 ~ 120 DEG C, then be cooled to 30 ~ 50 DEG C for subsequent use;
(2) get bisphenol A type epoxy resin, metallic aluminium powder, acid anhydride type curing agent and aluminum oxide powder, at 55 ~ 70 DEG C stir be evacuated to vacuum tightness be down to below 150Pa mould material;
(3) at the mold cavity surface-coated releasing agent of vacuum pouring mould, and be preheated to 70 ~ 90 DEG C for subsequent use;
(4) process is vacuumized to the mould of step (3), below 150Pa is down to vacuum tightness, get 1/2 ~ 3/4 place of mould material note to mold cavity volume of step (2), pouring speed is 8 ~ 10kg/min, stop material feeding 5 ~ 10min, continue again to fill, be poured, keep vacuumizing state 10 ~ 15min;
(5) post curing treatment is carried out to the vacuum pouring mould of step (4), at 80 ~ 90 DEG C, heat 2h successively, at 90 ~ 110 DEG C, heat 2h, at 110 ~ 120 DEG C, heat 2h, heat 12h at 120 ~ 135 DEG C, then be cooled to room temperature with furnace temperature.
In described step (3) except mould and die preheating, the vacuum pouring tank of splendid attire mould also needs to be preheated to 70 ~ 80 DEG C.
Beneficial effect of the present invention:
In the present invention, electric insulation part vacuum pouring mould adopts poured with epoxy resin material, traditional mold making technology is combined with rapid shaping technique, substitute traditional metallic substance (45# steel or Q235 steel), required time is about 1/3 of traditional moulds working method, there is moulding cycle short, the feature such as cost is low, precision is high, the life-span is long, and mold weight light, be easy to repair, better can meet production and application requirement (i.e. vacuum pouring method manufacture requirements), significantly can reduce labor strength, overall economic efficiency is remarkable.
In the present invention, the heat conductivility of vacuum pouring mould, mechanical property, processing performance all can meet electric insulation part manufacturing processed to the requirement of mould, and its thermal conductivity is 2.5 ~ 5.4Wm
-1k
-1, tensile strength is 75 ~ 105MPa, and compressive strength is 180 ~ 220MPa.Can significantly improve heat conductivility and the shock resistance of the rear material of solidification by adding metallic aluminium powder in poured with epoxy resin material, the thermal conductivity of its epoxy resin is only 0.2Wm
-1k
-1, the thermal conductivity of mould can be increased to 2.5 ~ 5.4Wm by adding metallic aluminium powder
-1k
-1.
In the present invention, electric insulation part mould adopts vacuum pouring legal system standby, and its method is simple, simple operation, is suitable for large-scale production and application.The shrinking percentage of the electric insulation part vacuum pouring mould adopting the method to prepare is only 0.05%, and wear resisting property is good, and dimensional stability is high.
Embodiment
Following embodiment is only described in further detail the present invention, but does not form any limitation of the invention.
Embodiment 1
Electric insulation part vacuum pouring moulding stock in the present embodiment, is made up of the raw material of following parts by weight: bisphenol A type epoxy resin 100 parts, and the viscosity at 25 DEG C is 6500mPas, and second-order transition temperature is 135 DEG C; Methyl tetrahydro phthalic anhydride 30 parts, the viscosity at 25 DEG C is 2900mPas; Metallic aluminium powder 120 parts, its particle diameter is 4 microns, purchased from ocean Aluminum company limited, is the aluminium powder finished product after silane treatment; Aluminum oxide powder 80 parts, particle diameter is 320 orders; Black color paste 2 parts.
The electric insulation part preparation method of vacuum pouring mould in the present embodiment, comprises the following steps:
(1) mould material is prepared:
First by aluminum oxide powder preheating 5h at 110 DEG C, then with furnace temperature be cooled to 45 DEG C for subsequent use; Get bisphenol A type epoxy resin, metallic aluminium powder, methyl tetrahydro phthalic anhydride, aluminum oxide powder and mill base, at 60 DEG C stir be evacuated to vacuum tightness be down to below 150Pa mould material (mould material is degassed very important, not can be pursuit speed and reduce the vacuum outgas time), viscosity is 8500mPas, and system temperature is 72 DEG C;
(2) pouring can and mould prepare:
Electric insulation part vacuum pouring mould is made up of six pieces of templates, fastening by thru-bolt, and one group six, its mould overlaps, first at mold cavity surface-coated releasing agent, uniform application 3 times, once and secondary terminals FX not coating release agent, and be preheated to 70 DEG C for subsequent use, pouring can be preheated to 75 DEG C for subsequent use;
(3) vacuum pouring process:
Process is vacuumized to the pouring can of step (2) and mould, below 150Pa is down to vacuum tightness, get 2/3 place of mould material note to first set mold cavity volume of step (1), pouring speed is 8kg/min, stops material feeding, then residue five mold is poured into a mould, cast one is taken turns rear (about 8min), then continues to fill first set mould, so that exhaust, six molds are poured, and keep vacuumizing state 12min;
(4) post cure processes:
Post curing treatment is carried out to the vacuum pouring mould of step (3), at 85 DEG C, heats 2h successively, at 110 DEG C, heat 2h, at 115 DEG C, heat 2h, heat 12h at 130 DEG C, then be cooled to room temperature with furnace temperature;
(5) six cover parts assemblings:
Six pieces of moulds of vacuum pouring mould are taken out in die sinking, are assembled into a set of vacuum pouring mould with thru-bolt.
Vacuum pouring mould prepared by the present embodiment, its thermal conductivity is 2.883Wm after tested
-1k
-1, tensile strength is 81.6MPa, and compressive strength is 190.3MPa.
Embodiment 2
Electric insulation part vacuum pouring moulding stock in the present embodiment, is made up of the raw material of following parts by weight: bisphenol A type epoxy resin 95 parts, and the viscosity at 25 DEG C is 5800mPas, and second-order transition temperature is 132 DEG C; Methyl tetrahydro phthalic anhydride 25 parts, the viscosity at 25 DEG C is 2700mPas; Metallic aluminium powder 110 parts, its particle diameter is 4 microns, purchased from ocean Aluminum company limited, is the aluminium powder finished product after silane treatment; Aluminum oxide powder 60 parts, particle diameter is 320 orders; Black color paste 2 parts.
The electric insulation part preparation method of vacuum pouring mould in the present embodiment, comprises the following steps:
(1) mould material is prepared:
First by aluminum oxide powder preheating 5h at 100 DEG C, then with furnace temperature be cooled to 40 DEG C for subsequent use; Get bisphenol A type epoxy resin, metallic aluminium powder, methyl tetrahydro phthalic anhydride, aluminum oxide powder and mill base, at 55 DEG C stir be evacuated to vacuum tightness be down to below 150Pa mould material (mould material is degassed very important, not can be pursuit speed and reduce the vacuum outgas time), viscosity is 8200mPas, and system temperature is 69 DEG C;
(2) pouring can and mould prepare:
Electric insulation part vacuum pouring mould is made up of six pieces of templates, fastening by thru-bolt, and one group six, its mould overlaps, first at mold cavity surface-coated releasing agent, uniform application 3 times, once and secondary terminals FX not coating release agent, and be preheated to 75 DEG C for subsequent use, pouring can be preheated to 80 DEG C for subsequent use;
(3) vacuum pouring process:
Process is vacuumized to the pouring can of step (2) and mould, below 150Pa is down to vacuum tightness, get 2/3 place of mould material note to first set mold cavity volume of step (1), pouring speed is 9kg/min, stops material feeding, then residue five mold is poured into a mould, cast one is taken turns rear (about 7min), then continues to fill first set mould, so that exhaust, six molds are poured, and keep vacuumizing state 10min;
(4) post cure processes:
Post curing treatment is carried out to the vacuum pouring mould of step (3), at 85 DEG C, heats 2h successively, at 100 DEG C, heat 2h, at 110 DEG C, heat 2h, heat 12h at 125 DEG C, then be cooled to room temperature with furnace temperature;
(5) six cover parts assemblings:
Six pieces of moulds of vacuum pouring mould are taken out in die sinking, are assembled into a set of vacuum pouring mould with thru-bolt.
Vacuum pouring mould prepared by the present embodiment, its thermal conductivity is 2.703Wm after tested
-1k
-1, tensile strength is 87.3MPa, and compressive strength is 210.7MPa.
Embodiment 3
Electric insulation part vacuum pouring moulding stock in the present embodiment, is made up of the raw material of following parts by weight: bisphenol A type epoxy resin 110 parts, and the viscosity at 25 DEG C is 6800mPas, and second-order transition temperature is 136 DEG C; Methyl hexahydrophthalic anhydride 35 parts, the viscosity at 25 DEG C is 2500mPas; Metallic aluminium powder 130 parts, its particle diameter is 4 microns, purchased from ocean Aluminum company limited, is the aluminium powder finished product after silane treatment; Aluminum oxide powder 80 parts, particle diameter is 320 orders; Black color paste 2 parts.
The electric insulation part preparation method of vacuum pouring mould in the present embodiment, comprises the following steps:
(1) mould material is prepared:
First by aluminum oxide powder preheating 5h at 120 DEG C, then with furnace temperature be cooled to 50 DEG C for subsequent use; Get bisphenol A type epoxy resin, metallic aluminium powder, methyl tetrahydro phthalic anhydride, aluminum oxide powder and mill base, at 65 DEG C stir be evacuated to vacuum tightness be down to below 150Pa mould material (mould material is degassed very important, not can be pursuit speed and reduce the vacuum outgas time), viscosity is 8500mPas, and system temperature is 72 DEG C;
(2) pouring can and mould prepare:
Electric insulation part vacuum pouring mould is made up of six pieces of templates, fastening by thru-bolt, and one group six, its mould overlaps, first at mold cavity surface-coated releasing agent, uniform application 3 times, once and secondary terminals FX not coating release agent, and be preheated to 80 DEG C for subsequent use, pouring can be preheated to 85 DEG C for subsequent use;
(3) vacuum pouring process:
Process is vacuumized to the pouring can of step (2) and mould, below 150Pa is down to vacuum tightness, get 2/3 place of mould material note to first set mold cavity volume of step (1), pouring speed is 10kg/min, stops material feeding, then residue five mold is poured into a mould, cast one is taken turns rear (about 6min), then continues to fill first set mould, so that exhaust, six molds are poured, and keep vacuumizing state 15min;
(4) post cure processes:
Post curing treatment is carried out to the vacuum pouring mould of step (3), at 90 DEG C, heats 2h successively, at 120 DEG C, heat 4h, heat 12h at 135 DEG C, then be cooled to room temperature with furnace temperature;
(5) six cover parts assemblings:
Six pieces of moulds of vacuum pouring mould are taken out in die sinking, are assembled into a set of vacuum pouring mould with thru-bolt.
Vacuum pouring mould prepared by the present embodiment, its thermal conductivity is 3.230Wm after tested
-1k
-1, tensile strength is 94.9MPa, and compressive strength is 180.2MPa.
Claims (9)
1. an electric insulation part vacuum pouring moulding stock, is characterized in that: the raw material primarily of following parts by weight forms: bisphenol A type epoxy resin 95 ~ 110 parts, acid anhydride type curing agent 25 ~ 35 parts, metallic aluminium powder 110 ~ 130 parts, aluminum oxide powder 60 ~ 80 parts.
2. electric insulation part vacuum pouring moulding stock according to claim 1, is characterized in that: the raw material also comprising following parts by weight: mill base 1 ~ 2 part.
3. electric insulation part vacuum pouring moulding stock according to claim 1 and 2, it is characterized in that: the viscosity of described bisphenol A type epoxy resin at 25 DEG C is 4000 ~ 7000mPas, second-order transition temperature is 130 ~ 140 DEG C.
4. electric insulation part vacuum pouring moulding stock according to claim 1 and 2, is characterized in that: the viscosity of described acid anhydride type curing agent at 25 DEG C is 1000 ~ 3000mPas.
5. electric insulation part vacuum pouring moulding stock according to claim 4, is characterized in that: described acid anhydride type curing agent is methyl tetrahydro phthalic anhydride or methyl hexahydrophthalic anhydride.
6. electric insulation part vacuum pouring moulding stock according to claim 1 and 2, is characterized in that: described metallic aluminium powder is through silane treatment, and its particle diameter is 1.5 ~ 5 microns.
7. electric insulation part vacuum pouring moulding stock according to claim 1 and 2, is characterized in that: the particle diameter of described aluminum oxide powder is 300 ~ 350 orders.
8. a preparation method for electric insulation part vacuum pouring mould as claimed in claim 2, is characterized in that: comprise the following steps:
(1) first by aluminum oxide powder preheating 4 ~ 6h at 90 ~ 120 DEG C, then be cooled to 30 ~ 50 DEG C for subsequent use;
(2) get bisphenol A type epoxy resin, metallic aluminium powder, acid anhydride type curing agent, aluminum oxide powder and mill base, at 55 ~ 70 DEG C stir be evacuated to vacuum tightness be down to below 150Pa mould material;
(3) at the mold cavity surface-coated releasing agent of vacuum pouring mould, and be preheated to 70 ~ 90 DEG C for subsequent use;
(4) process is vacuumized to the mould of step (3), below 150Pa is down to vacuum tightness, get 1/2 ~ 3/4 place of mould material note to mold cavity volume of step (2), pouring speed is 8 ~ 10kg/min, stop material feeding 5 ~ 10min, continue again to fill, be poured, keep vacuumizing state 10 ~ 15min;
(5) post curing treatment is carried out to the vacuum pouring mould of step (4), at 80 ~ 90 DEG C, heat 2h successively, at 90 ~ 110 DEG C, heat 2h, at 110 ~ 120 DEG C, heat 2h, heat 12h at 120 ~ 135 DEG C, then be cooled to room temperature with furnace temperature.
9. the preparation method of electric insulation part vacuum pouring mould according to claim 8, is characterized in that: the vacuum pouring tank for splendid attire mould in described step (3) is preheated to 70 ~ 80 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410015608.1A CN104292767B (en) | 2014-01-13 | 2014-01-13 | Vacuum casting mold material used for electrical insulation parts, and preparation method of mold |
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| CN201410015608.1A CN104292767B (en) | 2014-01-13 | 2014-01-13 | Vacuum casting mold material used for electrical insulation parts, and preparation method of mold |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105838033A (en) * | 2016-05-05 | 2016-08-10 | 太仓小小精密模具有限公司 | Compression resisting die material |
| CN107746530A (en) * | 2017-11-18 | 2018-03-02 | 五河县黄淮粮油机械有限公司 | A kind of manufacture method of insulated product mould |
| CN108410129A (en) * | 2017-02-10 | 2018-08-17 | 宝成工业股份有限公司 | Composition of sole mold and manufacturing method thereof |
| CN110542843A (en) * | 2019-09-29 | 2019-12-06 | 广东电网有限责任公司 | Pouring type bubble discharge model and manufacturing method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1160063A (en) * | 1995-12-28 | 1997-09-24 | 株式会社日立制作所 | Epoxy resin composition and insulating spacer |
| JP2011089063A (en) * | 2009-10-23 | 2011-05-06 | Asahi Kasei E-Materials Corp | Epoxy resin cured product in which metal powder is highly filled up, and manufacturing method therefor |
| CN102181128A (en) * | 2011-03-30 | 2011-09-14 | 吴江固德电材系统有限公司 | Epoxy resin premix and preparation technology of the epoxy resin premix |
| CN102241868A (en) * | 2010-05-11 | 2011-11-16 | 上海赛沃化工材料有限公司 | Epoxy resin composition for high-voltage power insulation |
| CN102515626A (en) * | 2012-01-06 | 2012-06-27 | 桂林理工大学 | High heat-conductivity epoxy casting material for dry power transformer and preparation method thereof |
| CN102633986A (en) * | 2012-04-11 | 2012-08-15 | 上海雄润树脂有限公司 | Extra-high voltage SF6 electrical insulation epoxy resin composition |
| CN102690496A (en) * | 2012-06-08 | 2012-09-26 | 苏州巨峰电气绝缘系统股份有限公司 | Nano modified epoxy vacuum pressure impregnation resin and preparation method thereof |
| CN103059513A (en) * | 2013-02-17 | 2013-04-24 | 桂林理工大学 | Castable for manufacturing high-voltage motor nano composite main insulation |
-
2014
- 2014-01-13 CN CN201410015608.1A patent/CN104292767B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1160063A (en) * | 1995-12-28 | 1997-09-24 | 株式会社日立制作所 | Epoxy resin composition and insulating spacer |
| JP2011089063A (en) * | 2009-10-23 | 2011-05-06 | Asahi Kasei E-Materials Corp | Epoxy resin cured product in which metal powder is highly filled up, and manufacturing method therefor |
| CN102241868A (en) * | 2010-05-11 | 2011-11-16 | 上海赛沃化工材料有限公司 | Epoxy resin composition for high-voltage power insulation |
| CN102181128A (en) * | 2011-03-30 | 2011-09-14 | 吴江固德电材系统有限公司 | Epoxy resin premix and preparation technology of the epoxy resin premix |
| CN102515626A (en) * | 2012-01-06 | 2012-06-27 | 桂林理工大学 | High heat-conductivity epoxy casting material for dry power transformer and preparation method thereof |
| CN102633986A (en) * | 2012-04-11 | 2012-08-15 | 上海雄润树脂有限公司 | Extra-high voltage SF6 electrical insulation epoxy resin composition |
| CN102690496A (en) * | 2012-06-08 | 2012-09-26 | 苏州巨峰电气绝缘系统股份有限公司 | Nano modified epoxy vacuum pressure impregnation resin and preparation method thereof |
| CN103059513A (en) * | 2013-02-17 | 2013-04-24 | 桂林理工大学 | Castable for manufacturing high-voltage motor nano composite main insulation |
Non-Patent Citations (2)
| Title |
|---|
| 伊启中等: "填料对环氧树脂模具材料力学性能的影响", 《福建工程学院学报》, vol. 5, no. 4, 31 August 2007 (2007-08-31), pages 348 - 350 * |
| 李子东等: "《胶黏剂助剂》", 28 February 2005, 化学工业出版社, article "甲基四氢苯酐", pages: 36-39 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105838033A (en) * | 2016-05-05 | 2016-08-10 | 太仓小小精密模具有限公司 | Compression resisting die material |
| CN108410129A (en) * | 2017-02-10 | 2018-08-17 | 宝成工业股份有限公司 | Composition of sole mold and manufacturing method thereof |
| CN107746530A (en) * | 2017-11-18 | 2018-03-02 | 五河县黄淮粮油机械有限公司 | A kind of manufacture method of insulated product mould |
| CN110542843A (en) * | 2019-09-29 | 2019-12-06 | 广东电网有限责任公司 | Pouring type bubble discharge model and manufacturing method thereof |
| CN110542843B (en) * | 2019-09-29 | 2024-01-23 | 广东电网有限责任公司 | Casting type bubble discharge model and manufacturing method thereof |
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