Hose, cholembera chosavuta komanso chopanda ndalama, chimagwiritsidwa ntchito kwambiri pazamankhwala atsiku ndi tsiku ndipo chimatchuka kwambiri. Bokosi labwino silingateteze zomwe zili mkati, komanso kupititsa patsogolo mlingo wa mankhwala, motero kupindula ogula ambiri kwa makampani opanga mankhwala tsiku ndi tsiku. Kotero, kwa makampani opanga mankhwala tsiku ndi tsiku, momwe mungasankhiremapaipi apulasitiki apamwambazomwe zili zoyenera pazogulitsa zawo?
Kusankhidwa ndi khalidwe la zipangizo ndizofunika kwambiri pakuonetsetsa kuti ma hoses ali abwino, omwe angakhudze mwachindunji kukonza ndi kugwiritsa ntchito komaliza kwa hoses. Zida zamapaipi apulasitiki zimaphatikizapo polyethylene (kwa thupi la chubu ndi mutu wa chubu), polypropylene (chivundikiro cha chubu), masterbatch, utomoni wotchinga, inki yosindikizira, varnish, etc. Choncho, kusankha kwa zinthu zilizonse kudzakhudza kwambiri khalidwe la payipi. Komabe, kusankha kwa zipangizo kumadaliranso zinthu monga ukhondo zofunika, zotchinga katundu (zofunika mpweya, nthunzi madzi, kusunga fungo kusungirako, etc.), ndi kukana mankhwala.
Kusankhidwa kwa mapaipi: Choyamba, zida zomwe zimagwiritsidwa ntchito ziyenera kukwaniritsa miyezo yoyenera yaukhondo, ndipo zinthu zovulaza monga zitsulo zolemera ndi zopangira fulorosenti ziyenera kuyendetsedwa mkati mwazomwe zalembedwa. Mwachitsanzo, pamapaipi omwe amatumizidwa ku United States, polyethylene (PE) ndi polypropylene (PP) zomwe zimagwiritsidwa ntchito ziyenera kukwaniritsa muyeso wa US Food and Drug Administration (FDA) 21CFR117.1520.
Zolepheretsa zazinthu: Ngati zomwe zili m'mapaketi amakampani opanga mankhwala atsiku ndi tsiku ndi zinthu zomwe zimakhudzidwa kwambiri ndi mpweya (monga zodzoladzola zina zoyera) kapena kununkhira kwake kumakhala kosasunthika (monga mafuta ofunikira kapena mafuta ena, ma acid, mchere ndi zina). mankhwala ena owononga), machubu opangidwa ndi zigawo zisanu ayenera kugwiritsidwa ntchito panthawiyi. Chifukwa mpweya permeability wa asanu wosanjikiza co-extruded chubu (polyethylene / zomatira utomoni / EVOH / zomatira utomoni / polyethylene) ndi 0.2-1.2 mayunitsi, pamene mpweya permeability wa wamba polyethylene wosanjikiza chubu ndi 150-300 mayunitsi. Mu nthawi ina, kuwonda mlingo wa co-extruded chubu munali Mowa ndi kangapo m'munsi kuposa wa single wosanjikiza chubu. Kuphatikiza apo, EVOH ndi ethylene-vinyl alcohol copolymer yokhala ndi zotchinga zabwino kwambiri komanso kusunga fungo (zotsatira zabwino zimatheka pamene makulidwe ake ndi ma 15-20 microns).
Kuuma kwa zida: Makampani opanga mankhwala atsiku ndi tsiku amakhala ndi zofunikira zosiyanasiyana pakuuma kwa ma hoses, ndiye kuti angapeze bwanji kuuma komwe kumafunikira? Polyethylene yomwe imagwiritsidwa ntchito kwambiri m'mapaipi ndi polyethylene yotsika kwambiri, polyethylene yolimba kwambiri, komanso polyethylene yocheperako pang'ono. Pakati pawo, kuuma kwa polyethylene yapamwamba kwambiri ndi yabwino kuposa ya polyethylene yotsika kwambiri, kotero kuti kuuma komwe kumafunidwa kungapezeke mwa kusintha chiŵerengero cha polyethylene / low-density polyethylene.
Kukana kwa Chemical kwa zida: Polyethylene yolimba kwambiri imakhala ndi kukana kwamankhwala kuposa polyethylene yotsika kwambiri.
Kulimbana ndi Nyengo: Kuwongolera magwiridwe antchito kwakanthawi kochepa kapena kwanthawi yayitali, zinthu monga mawonekedwe, kukana kukakamiza / kutsika, mphamvu yosindikiza, kukana kusokoneza chilengedwe (mtengo wa ESCR), kununkhira ndi kutayika kwa zinthu zomwe zimagwira ntchito. kuganiziridwa.
Kusankhidwa kwa masterbatch: Masterbatch amatenga gawo lofunikira pakuwongolera kwabwino kwa ma hoses. Choncho, posankha masterbatch, makampani ogwiritsa ntchito ayenera kuganizira ngati ili ndi dispersibility yabwino, kusefera ndi kukhazikika kwa kutentha, kukana kwa nyengo ndi kukana kwa mankhwala. Pakati pawo, kukana kwa masterbatch ndikofunikira kwambiri pakugwiritsa ntchito hoses. Ngati masterbatch sichigwirizana ndi zomwe zili nazo, mtundu wa masterbatch umasamukira ku chinthucho, ndipo zotsatira zake zimakhala zovuta kwambiri. Chifukwa chake, makampani opanga mankhwala atsiku ndi tsiku amayenera kuyesa kukhazikika kwa zinthu zatsopano ndi ma hoses (mayeso othamanga pansi pamikhalidwe yodziwika).
Mitundu ya varnish ndi mawonekedwe ake: Varnish yomwe imagwiritsidwa ntchito pa hoses imagawidwa mu mtundu wa UV ndi mtundu wowumitsa kutentha, womwe ungathe kugawidwa kukhala pamwamba pa matte ndi mawonekedwe a matte. Varnish sikuti imangopereka zowoneka bwino, komanso imateteza zomwe zili mkati mwake ndipo imakhala ndi zotsatira zina zotsekereza mpweya, mpweya wamadzi ndi kununkhira. Nthawi zambiri, vanishi yamtundu wowumitsa kutentha imakhala yomatira bwino pakupondaponda kotsatira ndi kusindikiza kwa silika, pomwe varnish ya UV imakhala ndi gloss yabwino. Makampani opanga mankhwala a tsiku ndi tsiku amatha kusankha varnish yoyenera malinga ndi mawonekedwe azinthu zawo. Kuphatikiza apo, varnish yochiritsidwa iyenera kukhala yomatira bwino, yosalala pamwamba popanda kupindika, kukana kupindika, kukana kuvala, kukana dzimbiri, komanso kusasinthika panthawi yosungira.
Zofunikira pamutu wa chubu / mutu wa chubu:
1. Pamwamba pa thupi la chubu liyenera kukhala losalala, lopanda mikwingwirima, zokopa, zovuta, kapena kufota. Thupi la chubu liyenera kukhala lolunjika osati kupindika. Makulidwe a khoma la chubu ayenera kukhala ofanana. Makulidwe a khoma la chubu, kutalika kwa chubu, ndi kulolerana kwake ziyenera kukhala mkati mwazomwe zafotokozedwa;
2. Mutu wa chubu ndi thupi la chubu la payipi liyenera kulumikizidwa mwamphamvu, mzere wolumikizira uyenera kukhala wabwino komanso wokongola, ndipo m'lifupi uyenera kukhala wofanana. Mutu wa chubu sayenera kupotozedwa pambuyo polumikizana;
3. Mutu wa chubu ndi chivundikiro cha chubu ziyenera kugwirizana bwino, kuwombera mkati ndi kunja bwino, ndipo pasakhale kutsetsereka mkati mwazitsulo zomwe zatchulidwa, ndipo pasakhale madzi kapena mpweya wotuluka pakati pa chubu ndi chivundikirocho;
Zofunikira zosindikiza: Kukonza payipi nthawi zambiri kumagwiritsa ntchito kusindikiza kwa lithographic offset (OFFSET), ndipo inki yambiri yomwe imagwiritsidwa ntchito ndi UV-zouma, zomwe nthawi zambiri zimafuna kumamatira mwamphamvu komanso kukana kusinthika. Mtundu wosindikiza uyenera kukhala mkati mwa kuya kwake komwe kwatchulidwa, malo opitilira muyeso ayenera kukhala olondola, kupatuka kukhale mkati mwa 0.2mm, ndipo fontyo ikhale yathunthu komanso yomveka bwino.
Zofunikira pazipewa zapulasitiki: Zovala zapulasitiki nthawi zambiri zimapangidwa ndi jekeseni wa polypropylene (PP). Zovala zapulasitiki zapamwamba siziyenera kukhala ndi mizere yowoneka bwino yocheperako komanso yonyezimira, mizere yosalala ya nkhungu, miyeso yolondola, komanso yosalala ndi mutu wa chubu. Sayenera kuwononga kapangidwe kake monga ming'alu ya brittle kapena ming'alu pakagwiritsidwe ntchito bwino. Mwachitsanzo, mphamvu yotsegulira ikakhala pakati pawo, chipewacho chiyenera kupirira mapindikidwe oposa 300 popanda kusweka.
Ndikukhulupirira kuti kuyambira pazomwe zili pamwambazi, makampani ambiri opanga mankhwala tsiku ndi tsiku azitha kusankha zida zapamwamba kwambiri zapaipi.
Nthawi yotumiza: Jul-12-2024