Momwe mungaletsere bolodi la epoxy kuti lisaswe

Epoxy bolodi ndi mkulu-ntchito insulating zakuthupi, amene amatchedwanso epoxy galasi CHIKWANGWANI bolodi, epoxy phenolic laminated galasi galasi nsalu bolodi ndi zina zotero. The epoxy board makamaka amapangidwa: galasi CHIKWANGWANI nsalu ndi omangidwa ndi epoxy utomoni ndipo amapangidwa ndi kutentha ndi kupanikizika, choncho ndi ntchito kwambiri ndi ubwino zambiri. Ndipo imatha kuwonetsa mawonekedwe ake m’malo aliwonse otentha.

Mwachitsanzo, pansi pa kutentha kwapakati, imatha kusonyeza ntchito yake yamakina bwino kwambiri; pansi pa kutentha kwakukulu, imatha kuwonetsa mphamvu zake zamagetsi bwino kwambiri. Chifukwa chake, chifukwa cha mawonekedwe awa, bolodi la epoxy ndiloyenera kwambiri pazigawo zamapangidwe apamwamba kwambiri pamagetsi ndi zamagetsi. Chilichonse chikhoza kufotokozedwa mwachidule mu chiganizo chimodzi, ndiko kuti, mapepala a epoxy ali ndi mawotchi apamwamba komanso a dielectric, ndipo amakhala ndi kutentha kwakukulu ndi kukana chinyezi. Kutentha kwapamwamba kwambiri kwa epoxy board insulation material ndi F grade, ndiko kuti, imatha kupirira kutentha kwakukulu kwa madigiri 155, ndipo imatha kukhalabe ndi ntchito yokhazikika pansi pa kutentha kwakukulu kotere.

Makulidwe ake nthawi zambiri amakhala pakati pa 0.5 ndi 100mm. Zomwe zimagwiritsidwa ntchito kwambiri ndi 1000mm * 2000mm. The 1200 × 2400 epoxy board kutchinjiriza zakuthupi adzapunduka pa kutentha kwa madigiri 180, choncho nthawi zambiri sagwiritsidwa ntchito ndi zitsulo zina, apo ayi zingachititse mapindikidwe matenthedwe a pepala zitsulo.

Utomoni wa epoxy nthawi zambiri umakumana ndi zotsatirazi pakagwiritsidwe ntchito: Kuponyera kwa EP, potting, kuumba ndi mbali zina zimang’ambika pambuyo pochiritsa kapena posungira, zomwe zimapangitsa kuti zinyalala ziwonongeke. Zigawo za EP ziwonetsanso ming’alu ikatenthedwa pang’ono kapena kutentha kosiyana ndi kuzizira. Gawo lalikulu, loyika kwambiri, komanso limakhala losavuta kuwonetsa ming’alu. Nthawi zambiri amakhulupirira kuti izi ndichifukwa choti kupsinjika kwamachiritso ndi kupsinjika kwa kutentha kumakhala kwakukulu kuposa mphamvu ya zinthuzo. Choncho, ndikofunikira kuwonjezera mphamvu za EP kuti mupewe ming’alu. Koma EP yamphamvu kwambiri imakhala ndi mphamvu zochepa. Zigawo zamapangidwe opanikizika (monga zomatira zomangira, zipangizo zamakono zamakono, ndi zina zotero) zopangidwa ndi EP zamphamvu kwambiri nthawi zambiri zimasweka mwadzidzidzi panthawi yogwiritsira ntchito, koma kupsinjika komwe amalandira kumakhala kochepa kuposa mphamvu ya EP. The fracture ndi brittle fracture trace. Amatchedwa low stress brittle fracture. EP yochiritsidwa mankhwala ndi polima yokhala ndi mulingo wapamwamba wolumikizirana ndipo imakhala yolimba kwambiri.

Pankhani toughening wa epoxy utomoni, chifukwa mphira toughened epoxy utomoni dongosolo makamaka zokhudzana ndi masanjidwewo dongosolo ndi tinthu mphira dongosolo pa ndondomeko fracture, komanso zokhudzana ndi mawonekedwe mawonekedwe a magawo awiri ndi voliyumu kagawo ka tinthu. gawo. The toughening kusinthasintha makamaka anatsimikiza ndi kulimba kwa particles, yunifolomu maukonde unyolo kutalika masanjidwewo, komanso zokhudzana interfacial adhesion ndi kapangidwe mankhwala a maukonde unyolo palokha.