Makapu omwe amagwiritsidwa ntchito kwambiri ndi makapu amadzi, koma pali mitundu yambiri ya makapu.Pankhani ya zida za makapu, zomwe zimakhala ndi makapu agalasi, makapu enamel, makapu a ceramic, makapu apulasitiki, makapu osapanga dzimbiri, makapu a mapepala, makapu a thermos, makapu a thanzi, ndi zina zotero.
1. Chikho cha pulasitiki: sankhani pulasitiki ya chakudya
Makapu apulasitiki amakondedwa ndi anthu ambiri chifukwa cha mawonekedwe awo osinthika, mitundu yowala, komanso makhalidwe osaopa kugwa.Iwo ndi abwino kwambiri kwa ogwiritsa ntchito kunja ndi ogwira ntchito muofesi.Nthawi zambiri, pansi pa kapu ya pulasitiki imakhala ndi chizindikiro, chomwe chili nambala ya katatu kakang'ono.Wamba ndi "05", kutanthauza kuti zinthu za kapu ndi PP (polypropylene).Chikho chopangidwa ndi PP chimakhala ndi kutentha kwabwino, malo osungunuka ndi 170 ° C ~ 172 ° C, ndipo katundu wake ndi wokhazikika.Kuphatikiza pa kuipitsidwa ndi sulfuric acid yokhazikika komanso asidi wa nitric, imakhala yokhazikika kuzinthu zina zamankhwala.Koma vuto la makapu wamba apulasitiki ndi lofala.Pulasitiki ndi polymer chemical material.Kapu ya pulasitiki ikagwiritsidwa ntchito kudzaza madzi otentha kapena madzi otentha, polima imathamanga mosavuta ndikusungunuka m'madzi, zomwe zimakhala zovulaza thanzi la munthu atatha kumwa.Komanso, mkati mwa microstructure ya pulasitiki imakhala ndi ma pores ambiri, omwe amabisa dothi, ndipo mabakiteriya amabereka ngati sanatsukidwe bwino.Choncho, kusankha makapu apulasitiki n'kofunika kwambiri posankha zipangizo zapulasitiki, ndipo mapulasitiki a chakudya omwe amakwaniritsa miyezo ya dziko ayenera kusankhidwa.Izi ndi zinthu za PP.
2. Ceramic chikho: kusankha underglaze mtundu komanso
Makapu amadzi a ceramic owoneka bwino ndi osangalatsa kwambiri, koma kwenikweni pali zoopsa zazikulu zobisika mu utoto wowalawo.Khoma lamkati la kapu ya ceramic yamitundu yotsika mtengo nthawi zambiri imakutidwa ndi glaze.Kapu yonyezimira ikadzadza ndi madzi otentha kapena zakumwa zokhala ndi asidi wambiri komanso zamchere, aluminiyamu ndi zinthu zina zowopsa zachitsulo mu glaze zimasungunuka mosavuta ndikusungunuka mumadzimadzi.Panthawiyi, anthu akamamwa madzi ndi mankhwala, thupi la munthu lidzavulazidwa.Mukamagwiritsa ntchito makapu a ceramic, ndi bwino kugwiritsa ntchito makapu amtundu wachilengedwe.Ngati simungathe kulimbana ndi chiyeso cha mtundu, mutha kufikira ndikukhudza mtunduwo.Ngati pamwamba ndi yosalala, zikutanthauza kuti underglaze mtundu kapena underglaze mtundu, amene ndi otetezeka;Padzakhalanso chodabwitsa cha kugwa, zomwe zikutanthauza kuti ndi mtundu wa pa-glaze, ndipo ndibwino kuti musagule.
3. Makapu a mapepala: Makapu a mapepala otayidwa ayenera kugwiritsidwa ntchito mochepa
Pakalipano, pafupifupi banja lililonse ndi gulu lidzakonzekera kapu ya pepala lachimbudzi lotayidwa, lomwe limagwiritsidwa ntchito ndi munthu mmodzi ndikutaya pambuyo pa ntchito, zomwe zimakhala zaukhondo komanso zosavuta, koma kapu wamba woteroyo amabisa mavuto ambiri.Pali mitundu itatu ya makapu a mapepala pamsika: yoyamba imapangidwa ndi makatoni oyera, omwe sangathe kusunga madzi ndi mafuta.Chachiwiri ndi kapu ya pepala yokhala ndi sera.Malingana ngati kutentha kwa madzi kupitirira 40°C, sera imasungunuka ndi kutulutsa carcinogenic polycyclic onunkhira hydrocarbons.Mtundu wachitatu ndi makapu apulasitiki-mapepala.Ngati zida zosankhidwa sizili zabwino kapena ukadaulo wopangira siwokwanira, kusintha kwapang'onopang'ono kudzachitika panthawi ya kusungunuka kwa polyethylene kapena kupaka pa makapu amapepala, zomwe zimapangitsa kuti pakhale ma carcinogens.Pofuna kuonjezera kuuma ndi kuuma kwa makapu, mapulasitiki amawonjezeredwa ku makapu a mapepala.Zinthu zaukhondo sizingatsimikizidwe ngati mlingowo ndi wapamwamba kwambiri kapena mapulasitiki osaloledwa amagwiritsidwa ntchito.
4. Galasi: yothandiza komanso yotetezeka kuteteza kuphulika
Chosankha choyamba cha magalasi akumwa chiyenera kukhala galasi, makamaka kwa ogwiritsira ntchito ofesi ndi kunyumba.Galasi sikuti imangokhala yowonekera komanso yokongola, koma pakati pa zipangizo zonse za galasi, galasi ndilo labwino kwambiri komanso lotetezeka.Galasiyo imapangidwa ndi silika, ndipo ilibe mankhwala achilengedwe panthawi yowombera.Anthu akamamwa madzi kapena zakumwa zina za m’galasi, sadera nkhawa kuti mankhwalawo amweredwa m’mimba mwawo.;Ndipo galasi pamwamba ndi yosalala ndi yosavuta kuyeretsa, ndipo mabakiteriya ndi dothi n'zosavuta kuswana pakhoma la kapu, choncho ndi wathanzi ndi otetezeka kuti anthu kumwa madzi mu galasi.Komabe, ziyenera kukumbukiridwa kuti galasiyo imawopa kwambiri kuwonjezereka kwa kutentha ndi kuchepetsedwa, ndipo galasi lokhala ndi kutentha kochepa sayenera kudzazidwa ndi madzi otentha nthawi yomweyo kuti lisawonongeke.
Nthawi yotumiza: Dec-26-2022