Momwe mungaweruzire mtundu wa zomangira chingwe

Tepi ya pulasitiki ndi imodzi mwa zida zapadera zomwe zimagwiritsidwa ntchito pamoyo watsiku ndi tsiku.Amagwiritsidwa ntchito kwambiri pomanga mizere yolumikizira ma elekitirodi a TV, makompyuta ndi zida zina zamkati, zinthu zamagetsi, kuyatsa, ma mota, zoseweretsa zamagetsi ndi zinthu zina.Kugawa mzere kukonza, zipangizo mafakitale mafuta payipi kukonza, zombo Chingwe mizere kukonza magiya nayiloni, kulongedza njinga kapena bundling zinthu zina, ndipo angagwiritsidwenso ntchito bundling zinthu monga ulimi, kuweta nyama, minda, ntchito zamanja, etc. amagwiritsidwa ntchito m'malo osiyanasiyana ogulitsa komanso kugulitsa kwakukulu ku Europe ndi United States ndi mayiko ena.Momwe mungadziwire ngati zomangira zingwe zogulidwa ndizoyenera?Tikudziwa kuti pali zida zambiri zomangira pulasitiki.Akuti pali mitundu ingapo, yolamulidwa ndi PA (acrylic resin), PP (polypropylene woonda), PVC (polyethylene), PE (high pressure polyethylene), ndi ena sagwiritsidwa ntchito kawirikawiri.Pulasitikima cableZomwe zimatchulidwa nthawi zambiri zimamveka bwino ngati zomangira zingwe za nayiloni pang'ono, chomwenso ndi chimodzi mwa zida zodziwika bwino zomangira.Zinthu zake ndi PA.PA6, PA66, PA12, PA1010, ndi zina zambiri ndizofala m'magulu awa, ndipo kugwiritsa ntchito PA66 ndikofala kwambiri.1. Yang'anani mosamala mawonekedwe a tepi ya pulasitiki nayiloni.Kwa mankhwala abwino, maonekedwe ndi mtundu zimakhala bwino ndipo palibe zotsalira.Kwa malamba abwino kwambiri, pali thovu zambiri za mpweya muzogulitsa.zotsalira.Zopanda kanthu ndi zowotchedwa.2. Yang'anani m'mano akuluma lamba kuti muwone ngati ali abwino, kandani ndi chikhadabo kuti muwone ngati ali opunduka.Kwa mano opunduka komanso osawoneka bwino, katunduyo samangika mwamphamvu, ndipo mano a lamba wapamwamba kwambiri amakhala aukhondo komanso osavuta kupunduka.3. Yang'anani malangizo azinthu kuti muwone zomwe zimagwiritsidwa ntchito.Kwa zipangizo zina zotsika, makhalidwe awo ndi osauka kwambiri ndipo ndi osavuta kusweka.Zosavuta kukalamba, kagwiritsidwe ntchito kafupika.4. Malingana ndi mphamvu yonyamulira lamba wa pulasitiki, mukhoza kukoka ndi mphamvu pang'ono, koma osati ndi mphamvu zambiri.Zimakhalanso zosavuta kuthyola ndi mphamvu zambiri, monga zingwe zapulasitiki zamitundu yosiyanasiyana mosakayika zidzathyoka, kotero zimatengera.4. Malingana ndi mphamvu yonyamulira lamba wa pulasitiki, mukhoza kukoka ndi mphamvu pang'ono, koma osati ndi mphamvu zambiri.Zimakhalanso zosavuta kuthyola ndi mphamvu zambiri, ndipo zimatengera momwe zinthu zilili ngati lamba wapulasitiki akhoza kupirira mosiyana.5. Onani ngati chizindikiro chodziwika bwino ndi chizindikiro chodziwika bwino, komanso kuchuluka kwa chitsimikiziro cha khalidwe lodziwika bwino.6. Onani ngati malondawo ali ndi chizindikiritso cha certification, ndipo zinthu zoyenerera zimayesedwa malinga ndi Quality Supervision Bureau.