Kuyerekeza kwa Ma Vavu Osavala ndi Ma Vavu Omwe Amagwiritsidwa Ntchito

Pali mavuto ambiri ofala ndi ma valve, makamaka omwe amapezeka nthawi zambiri m'mafakitale. Ma valve a ma valve ambiri amapangidwa ndi rabara yopangidwa, yomwe imakhala ndi ntchito yoipa, zomwe zimapangitsa kuti zinthu zogwirira ntchito ziziziritsa kwambiri, kutentha kosayenera ndi kupanikizika, ndi zina zotero; kulongedza konse kumayikidwa pamalo osungira, ndipo kukangana kwamkati kumakhala kwakukulu; kulongedza kumagwiritsidwa ntchito kwa nthawi yayitali. Kukalamba; ntchito ndi yoopsa kwambiri; tsinde la valve lili ndi dzimbiri, kapena lachita dzimbiri chifukwa chosowa chitetezo panja, ndi zina zotero, zomwe zimayambitsa mavuto a ma valve.

Chovala cha valavu cha mndandanda wa ma valavu osatha ntchito chimapangidwa ndi rabala yosatha kugwira ntchito kwambiri, yomwe siipezeka kawirikawiri kuti ituluke. Imasakanizidwa ndi zowonjezera zochepa komanso latex yachilengedwe mu mkhalidwe wonyowa (raba yachilengedwe). Mkaka ndi wosavuta kusakaniza mu mkhalidwe wamadzimadzi), kusakaniza kumakhala kofanana, ndipo kuchuluka kwa rabala yachilengedwe ndi pafupifupi 97%, kotero kuti unyolo wautali wa mamolekyu a raba umakhalabe wosasintha, ndipo kukana kwake kutha ntchito ndi kusinthasintha kwake kumakhala kowirikiza ka 10 kuposa rabala wamba, kotero ili ndi mphamvu yolimba yokwapula ndipo ndi yoyenera pazinthu zosiyanasiyana zowononga. Ili ndi kusinthasintha kwakukulu ndipo imatha kuchepetsa kukangana, kotero ingagwiritsidwe ntchito kwa nthawi yayitali. Mavuto a dzenje ndi dzimbiri a tsinde la valavu amafunika chitetezo cha tsiku ndi tsiku ndi ogwiritsa ntchito.

Kuphatikiza apo, magwiridwe antchito otsekera a valavu yayikulu siabwino, ndipo sangathe kupirira kukhudzidwa ndi zinthu zoyendera mwachangu; mphete yotsekera sigwirizana bwino ndi mpando wa valavu ndi mbale ya valavu; kutsekako ndi kwachangu kwambiri, ndipo pamwamba potsekera sikugwirizana bwino; zinthu zina, pang'onopang'ono mutatseka. Kuziziritsa kumayambitsa mipata yopyapyala pamwamba potsekera, zomwe zimapangitsa kuti kukokoloka ndi mavuto ena. Rabala yosatha mu valavu yosatha imagwiritsa ntchito ukadaulo wa vulcanization wapamwamba kutentha kwa chipinda panthawi ya vulcanization, kotero kuti rabala yokhala ndi pansi yayikulu yokhuthala imatenthedwa ndikuwotchedwa mofanana mkati ndi kunja nthawi yomweyo, vulcanization imakhala yofanana, pamwamba pake ndi posalala, ndipo mphamvu yokoka ndi yamphamvu. Kulimba kwambiri, kumatha kuyamwa, kubweza kugwedezeka, kukangana ndi magwiridwe antchito otsekera. Palibe vuto ndi magwiridwe antchito otsekera, ili ndi malo osalala, ndipo siyimayambitsa kukhudzana koyipa kwa pamwamba potsekera chifukwa chotseka mwachangu kwambiri.

Palinso zifukwa zina, kaya ndi valavu wamba kapena valavu yosatha, wogwiritsa ntchito ayenera kuchitapo kanthu kuti atetezeke komanso kuti azigwiritsa ntchito bwino, monga: nyengo ikazizira, valavuyo sichitapo kanthu, zomwe zimapangitsa kuti thupi la valavu lisweke; kugwedezeka kapena kutalika. Gudumu lamanja limawonongeka chifukwa cha kugwira ntchito mwamphamvu kwa lever; mphamvu yosalingana pokanikiza paketi, kapena gland yolakwika imapangitsa kuti gland yonyamula katundu isweke ndi zina zotero.