Improved molding of DAP (diallyl phthalate) electrical components in aluminum housings
Diallyl phthalate (DAP) resin-based compounds with fiberglass reinforcements were used for the transfer molding of electrical components in aluminum housings. The gate size for this molding is less than 1 mm, and the end products, which are very small parts, must conform to stringent dimensional tolerances (typically {plus minus}0.05 mm). Parts must also exhibit physical properties that exceed the requirements specified by Mil-M-14G without compromising excellent electrical characteristics. In the past, processing had proceeded with only minor difficulties, but an alloy change instituted for the electrode material caused molding yields to plummet from 80 to 25%. Subsequent evaluations and process modifications not only remedied the impact of the alloy change but also increased yields to 96%. 9 figs., 1 tab.
- Research Organization:
- EG and G Mound Applied Technologies, Miamisburg, OH (USA)
- Sponsoring Organization:
- DOE/DP
- DOE Contract Number:
- AC04-88DP43495
- OSTI ID:
- 6334147
- Report Number(s):
- MLM-3672(OP); CONF-901104--2; ON: DE91006446
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360601* -- Other Materials-- Preparation & Manufacture
42 ENGINEERING
426000 -- Engineering-- Components
Electron Devices & Circuits-- (1990-)
CARBOXYLIC ACID SALTS
ELECTRICAL EQUIPMENT
EQUIPMENT
FABRICATION
FIBERGLASS
MATERIALS
MOLDING
MOLDING MATERIALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PHTHALATES
PLASTICS
POLYMERS
REINFORCED MATERIALS
RESINS
SYNTHETIC MATERIALS