- 12
- Apr
Litšobotsi tsa tšebeliso ea pipe ea epoxy
Litšobotsi tsa tšebeliso ea pipe ea epoxy
Litšobotsi tsa tšebeliso ea pipe ea epoxy:
1. Mefuta e sa tšoaneng. Ho na le mefuta e mengata e fapaneng ea li-resin, lisebelisoa tse phekolang, le lisebelisoa tse fetolang li fumaneha ho lumellana le litlhoko tsa mofuta o mong le o mong oa kopo, ho tloha ho li-viscosity tse tlase haholo ho isa ho tse tiileng tse phahameng.
2. Ho bonolo ho phekola. Ka ho sebelisa mefuta e fapaneng ea pheko, litsamaiso tsa epoxy resin li ka phekoloa maemong a mocheso a 0 ho isa ho 180 °C.
3. Ho khomarela ka matla. Ho ba teng ha polar hydroxyl le li-ether bond tse teng moketjaneng oa molek’hule oa epoxy resin [1] e etsa hore e be le mamarelo a phahameng linthong tse fapaneng. Li-resin tsa epoxy li na le shrinkage e tlase ha li phekoloa ‘me li hlahisa khatello e fokolang ea ka hare, e leng se tlatsetsang ho ntlafatsa matla a ho khomarela.
4. Ho fokotseha ho tlaase. Boitšoaro ba epoxy resin le pheko e sebelisitsoeng e etsoa ka karabelo e tobileng ea tlatsetso kapa polymerization e bulehileng ea lihlopha tsa epoxy ka molek’hule ea resin, ntle le ho lokolloa ha metsi kapa lihlahisoa tse ling tse fetohang. Li bontša shrinkage e tlase haholo (ka tlase ho 2%) nakong ea ho folisa ha e bapisoa le li-resin tsa polyester le li-phenolic resin.
5. Mechini ea mechini. Sisteme e phekotsoeng ea epoxy resin e na le litšobotsi tse ntle haholo tsa mochini.