- Tytuł:
- Modern Alphaset (APNB) Flexible Formulations-Enhanced Performance
- Autorzy:
- Ghosh, D. K.
- Powiązania:
- https://bibliotekanauki.pl/articles/1837863.pdf
- Data publikacji:
- 2020
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
make molds and cores
sand binder
resin performance
alkaline phenolic no-bake
APNB
wytwarzenie form i rdzeni
spoiwo piaskowe
właściwości żywic - Opis:
- APNB (alkaline phenolic no bake), widely known as Alphaset is one of the major sand binder systems used in foundries to make molds and cores without application of heat or gas. This is a two part system comprising of a phenol-formaldehyde resin in alkaline medium as binder and range of esters of dibasic acids and/or polyhydric alcohols as hardeners. Resin performance varies depending upon formulations. Major variables in formulations are mole ratio of phenol: formaldehyde, total alkali content, ratio of two alkalis (NaOH & KOH) and molecular weight of polymers i.e. chain length. In present work, one mole ratio of phenol & formaldehyde has been chosen to prepare 8 resins [...].
- Źródło:
-
Archives of Foundry Engineering; 2020, 20, 4; 18-28
1897-3310
2299-2944 - Pojawia się w:
- Archives of Foundry Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł