Momwe mungasankhire zida za mica board zopangira ma commutator

commutator mica board, yomwe imatchedwanso commutator mica board, ndi imodzi mwazinthu zofunika kwambiri zotetezera mu DC motors. Pali zida ziwiri zazikulu zopangira ma commutator mica board: imodzi ndi pepala laling'ono la mica, ndipo linalo ndi pepala la ufa. Kuti mankhwalawa afikire makulidwe ofunikira, mbale ya mica yopangidwa ndi mapepala a mica iyenera kupedwa kapena kupukutidwa. Mukakanikiza, mbali ziwirizo zimakhala ndi mapepala osiyana siyana ndi nsalu, kotero kuti makulidwewo ndi ofanana ndipo kutsekedwa kwamkati kumatheka pambuyo pokakamiza. Pamene pepala la mica la ufa likugwiritsidwa ntchito popanga bolodi la mica la ufa, ngati kukakamiza kuli bwino, mphero kapena mphero ikhoza kuchotsedwa.

Kuphatikiza apo, malinga ndi milingo yosiyanasiyana yotchinjiriza ya mota, komanso zofunikira za anti-arc ndi chinyezi kukana, shellac, utoto wa poliyesitala, utoto wa melamine polyacid, ammonium phosphate aqueous solution, cyclic resin guluu kapena utoto wosinthidwa wa silikoni amagwiritsidwa ntchito ngati zomatira. kupanga Mitundu yosiyanasiyana ya matabwa a mica.

Kugwiritsiridwa ntchito kwa shellac kungapangitse mbale za commutator mica zomwe zimatha kufika kutentha kwa 100 ° C ndi pamwamba, kuphatikizapo ma commutator cloud plates a motors othamanga kwambiri. Koma kuipa kwake ndikuti kupanga bwino kumakhala kochepa.

Ndi bwino kuposa shellac kugwiritsa ntchito polyacid resin condensed kuchokera ortho-jasmonic anhydride ndi glycerin. Ndiosavuta kusenda ndi kumata mapepala a mica, komanso imatha kupanga makina omata mapepala a mica, kotero kuti eni nyumba ambiri amatha kupanga ma commutator mica board. . Komabe, kuipa ndikuti pali utomoni wopanda polymerized mu bolodi la mica, ndipo depolymerization ya utomoni mu bolodi la mica imakulitsidwa chifukwa cha kutentha kwambiri komanso kuthamanga kwambiri. pamwamba pa injini ya commutator.

Mukamagwiritsa ntchito mbale ya polyacid resin commutator mica ngati injini yotentha kwambiri kuti itseke cholumikizira cha crane kapena mota yayikulu, iyenera kutenthedwa musanagwiritse ntchito. Pambuyo pochita izi, mukakanikiza commutator, kutuluka kwa utomoni kudzachepetsedwa, zomwe zimatsimikiziranso kudalirika kwa commutator ikugwira ntchito.

Kugwiritsa ntchito ufa wa Anfu monga zomatira kumatha kupangitsa kuti mawonekedwe a commutator mica board asasinthe pansi pamikhalidwe ya chinyezi komanso kutentha kwambiri (200 ℃ kapena kupitilira apo). Mlingo wake wocheperako ndi wocheperako kuposa ma board ena a mica, ndipo kutentha kwake kumapitilira 600 ℃. Chifukwa chake, mtundu wake nthawi zambiri umakhala wapamwamba kuposa ma board a mica omwe tawatchulawa, ndipo mawonekedwe ake ndi okulirapo.

Mica board yopangidwa ndi epoxy kapena melamine ndi polyacid resin imakhala ndi kukana kwa arc ndipo imagwiritsidwa ntchito pama motors othamanga kwambiri a DC.

Mica board yopangidwa ndi utomoni wosinthidwa imatha kupirira kutentha kwambiri ndipo imagwiritsidwa ntchito pamakina apadera otaya.

NIDE imapereka ma mica board ndi ma commutators osiyanasiyana, omwe amagwiritsidwa ntchito kwambiri pazida zamagetsi, ma motors opanda maburashi, ma mota amagetsi atsopano, zida zapakhomo, matebulo onyamulira, mabedi a zida zamankhwala ndi magawo ena.