JPS578108A - Manufacture of molded type eletrical apparatus - Google Patents
Manufacture of molded type eletrical apparatusInfo
- Publication number
- JPS578108A JPS578108A JP8351080A JP8351080A JPS578108A JP S578108 A JPS578108 A JP S578108A JP 8351080 A JP8351080 A JP 8351080A JP 8351080 A JP8351080 A JP 8351080A JP S578108 A JPS578108 A JP S578108A
- Authority
- JP
- Japan
- Prior art keywords
- filling material
- powder
- material layer
- epoxy resin
- electrical apparatus
- 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.)
- Pending
Links
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE: To obtain a molded type electrical apparatus which is readily manufactured and has a large mechanical strength, by a method wherein into a container housing an electrical apparatus such as transformer, a powder-shaped inorganic material and a powder-shaped thermoplastic resin, which have been mixed, are filled and then molded by heating.
CONSTITUTION: After an electrical apparatus comprising iron cores, coils and the like, such as a constant-voltage transformer, has been housed in a metal container 2, a filling material obtained by uniformly dispersing a small quantity of thermoplastic resin (suitably, bisphenol system epoxy resin, novolak system epoxy resin or the like) into inorganic powder is filled in the air gap in the container 2 to form the first filling material layer 3. Then, into the upper part of the filling material layer 3, a solventless thermoplastic resin (suitably, epoxy resin) having a low viscosity is injected to form the second filling material layer 4. Thereafter, a heating treatment is applied in order to melt and harden the resin powder in the filling material layer 3 to integrally mold the inorganic powder firmly. In addition, as the epoxy resin, one having a particle size 10W80μ is preferable.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8351080A JPS578108A (en) | 1980-06-18 | 1980-06-18 | Manufacture of molded type eletrical apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8351080A JPS578108A (en) | 1980-06-18 | 1980-06-18 | Manufacture of molded type eletrical apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS578108A true JPS578108A (en) | 1982-01-16 |
Family
ID=13804474
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8351080A Pending JPS578108A (en) | 1980-06-18 | 1980-06-18 | Manufacture of molded type eletrical apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS578108A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111716609A (en) * | 2020-07-08 | 2020-09-29 | 常州佳冠电子有限公司 | Pouring equipment and pouring process for capacitor epoxy resin |
-
1980
- 1980-06-18 JP JP8351080A patent/JPS578108A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111716609A (en) * | 2020-07-08 | 2020-09-29 | 常州佳冠电子有限公司 | Pouring equipment and pouring process for capacitor epoxy resin |
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