1. Gabatarwa ga Jakunkunan Saka da Fasahar Sarrafa Su
Ana yin jakunkunan da aka saka na filastik galibi da polypropylene (PP), waɗanda aka samar ta hanyar extrusion, zana filament, saƙa, da yin jaka. PP wani thermoplastic ne mai haske, mai kama da crystalline mai ƙarfi sosai, mai kyau mai rufi, ƙarancin sha ruwa, zafin zafi mai yawa, ƙarancin yawa, da kuma yawan lu'ulu'u, wanda hakan ya sa ya zama babban kayan da ake amfani da shi wajen yin jakunkunan da aka saka. Abubuwan da aka gyara galibi sun haɗa da zare na gilashi, abubuwan cika ma'adinai, da robar thermoplastic.
Jakunkunan da aka saka na roba suna da amfani iri-iri. A halin yanzu, ana amfani da su ne musamman don marufi na kayayyakin noma, marufi na jakar siminti, marufi na abinci, injiniyan ƙasa, jigilar yawon buɗe ido, da kayan shawo kan ambaliyar ruwa.
Jakunkunan saka galibi ana rarraba su zuwa rukuni uku: jakunkunan saka na filastik (jakunkunan saka marasa laminated), jakunkunan saka na filastik masu haɗaka, da kuma yadudduka daban-daban masu saka.
Tsarin samar da filastikjakunkunan sakakamar haka: ana buga masakar da aka saka, a yanka, sannan a dinka ta don ta zama jaka. Dangane da kayan aikin da ake amfani da su, ana iya yankewa kafin a buga, ko kuma a yi bugu kafin a yanke. Yankewa da dinki ta atomatik na iya ci gaba da kammala bugawa, yankewa, da kuma dinki. Hakanan yana iya samar da jakunkunan bawul, jakunkunan da aka cika ƙasa, da sauransu. Ga masakar da aka saka, ana iya yin haɗin tsakiya da dinki kafin a yi jaka.
Tsarin samar da kayan haɗin gwiwaJakunkunan saka na filastikya ƙunshi laminating ko shafa masakar da aka saka, kayan shafa, da takarda ko fim. Ana iya yanke masakar bututu ko takarda da aka samu, a buga, a dinka ta don yin jakunkunan dinki na yau da kullun. Haka kuma ana iya huda shi, a ɗaure shi, a yanke shi, a buga shi, sannan a dinka shi don yin jakunkunan siminti. Yadin da aka samu zai iya zama na tsakiya, a buga shi, a yanke shi, sannan a manne shi a ƙasa don yin jakunkunan da aka manne. Haka kuma ana iya walda shi a naɗe shi don yin tarpaulins da geotextiles.
Ana iya shafa masaku masu laushi ko kuma a rufe su da wani abu mai laushi don samar da tabarmar, geotextiles, da sauransu. Haka kuma ana iya yage masaku masu siffar tubular a shafa musu ko a rufe su da wani abu mai laushi don samar da tabarmar ko geotextiles, da sauransu.
2. Hanyoyin Sarrafa Jakunkuna da Dabaru
2.1 Gilashin
Gilashin filastik muhimmin mataki ne a fannin sarrafa kayayyakin filastik. Yawancin kayan filastik suna buƙatar a yi musu granite bayan an haɗa su kafin a yi amfani da su, kuma wannan fasaha tana shafar ingancin kayayyakin filastik kai tsaye. Babban tsarin gilasan ya haɗa da: yin batching, extrusion, tacewa, sanyaya ruwa, jan hankali, yin pelletizing, busarwa, da marufi.
Ana ƙara foda na polypropylene, ƙarin abubuwa daban-daban, da kuma sinadarin calcium carbonate da aka kunna a cikin mahaɗin mai sauri a cikin wani takamaiman rabo da tsari. Bayan haɗawa a ƙaramin gudu zuwa babban gudu na wani lokaci, ana sanya cakuda a cikin hopper kuma ana isar da shi ta hanyar mai ciyar da sukurori. Kayan yana shiga ganga ta hanyar shigar abinci, inda ake narke shi kuma ana sanya shi ta hanyar robobi ta ganga da sukurori, ana ci gaba da fitar da shi zuwa tsiri. Ana sanyaya tsiri kuma ana siffanta shi a cikin tankin ruwa, sannan a cire danshi ta hanyar fanka mai rage danshi, fanka ya sanyaya shi, sannan a sake sanya shi ta hanyar pelletizer. Bayan an tantance shi ta hanyar allo mai girgiza, fanka mai isar da sako ana isar da tsiri zuwa gado mai narkewa don busar da gado mai narkewa. A ƙarshe, tsiri yana shiga tankin kayan aiki, kuma mai ciyarwa yana tsotse kayan daga tankin zuwa tankin ajiya. Bayan an duba ƙwayoyin, ana naɗe su da adadi, suna kammala dukkan aikin samarwa. 2.2 Zane Zane Zane Zane Zane na Zane, wanda aka fi sani da zane mai faɗi ko yanke zare, muhimmin tsari ne a cikin layukan samar da jaka; Hakazalika, sashin zana zaren shine babban kayan aikin masana'antar kera jaka. Ingancin tsarin zana zaren yana shafar ingancin ciki da waje na samfurin kai tsaye.
Tsarin zare mai faɗi ya haɗa da: gyaran kayan abu, haɗawa, launi, cikawa, tsari, matsalolin hana tsufa da rage lalacewa, zafin jiki, matsin lamba, da kuma sarrafa saurin kwarara yayin fitar da su, halayen rheological yayin fitar da su, matsalolin amfani da wutar lantarki da yawan amfanin ƙasa, rabon jawo, rabon busawa, rabon zana, sanyaya lu'ulu'u, daidaitawa, matsalolin magance zafi da siffanta su, samar da su yayin naɗewa, da kuma duba ingancin sandunan zare.
Bayan kayan da aka yi amfani da su wajen fitar da kayan, sai a yi masa zafi a waje a zafin 190-250℃ sannan a yanke shi tsakanin sukurori da ganga. Bayan an gama yin robobi, sai a fitar da kayan a adadi mai yawa kuma a ƙarƙashin matsin lamba akai-akai. Bayan an samar da shi a kan mashin, sai ya zama fim mai narkewa wanda ke shiga ruwan sanyi. Bayan ya sanyaya, sai a yanke fim ɗin zuwa zare da ruwan wukake. Sannan a shimfiɗa zare a yanayin zafi mai yawa a cikin tanda mai zafi har sai sun yi zare mai faɗi. Sannan a sanya zare mai faɗi a kan na'urorin juyawa masu zafi, a rage saurin jan hankali, sannan a sarrafa shi a yanayin zafi mai sauƙi ta hanyar na'urorin juyawa masu sanyi. A ƙarshe, ana naɗe shi da siffa ta tsarin naɗewar tashin hankali daban-daban.
Ana iya rarraba hanyoyin samar da zare mai faɗi ta hanyar hanyar samar da fim (fim ɗin bututu, fim ɗin lebur); ta hanyar sanyaya bayan fim (sanyaya iska, sanyaya ruwa, da sanyaya lokaci-lokaci); ta hanyar zana da dumama (faranti mai zafi, na'urori masu zafi, iska mai zafi); da kuma ta hanyar juyawar spindle (na'urar juyawa ta cycloidal mai tsakiya, na'urar juyawar injin juyawa mai juyawa mai juyawa mai juyawa, da na'urar juyawar magnetic).
Lokacin Saƙo: Janairu-05-2026