Kutenga zvinhu zvekurongedza | Maitiro ekusarudza zvigadzirwa zvepurasitiki zvemhando yepamusoro

Kusarudzwa uye kunaka kwezvinhu ndizvo zvakakosha pakuona kuti mapombi akanaka, izvo zvinozokanganisa zvakananga kugadzirwa uye kushandiswa kwekupedzisira kwemapombi. Zvinhu zvemapombi epurasitiki zvinosanganisira polyethylene (yemuviri wechubhu nemusoro wechubhu), polypropylene (chubhu inofukidza), masterbatch, barrier resin, inki yekudhinda, varnish, nezvimwewo. Saka, kusarudzwa kwezvinhu chero chipi zvacho kuchakanganisa zvakananga kunaka kwepaipi. Zvisinei, kusarudzwa kwezvinhu zvinoenderanawo nezvinhu zvakaita sezvinodiwa nehutsanana, hunhu hwezvinodzivirira (zvinodiwa zveokisijeni, utsi hwemvura, kuchengetedza kunhuhwirira, nezvimwewo), uye kuramba makemikari.

Kusarudzwa kwemapombi: Chekutanga, zvinhu zvinoshandiswa zvinofanira kuzadzisa mitemo yehutsanana, uye zvinhu zvinokuvadza zvakaita sesimbi dzinorema uye zvinhu zvinopenya zvinofanira kudzorwa mukati mehuwandu hwakatarwa. Semuenzaniso, kumapombi anotumirwa kuUnited States, polyethylene (PE) nepolypropylene (PP) zvinoshandiswa zvinofanira kuzadzisa chiyero cheUS Food and Drug Administration (FDA) 21CFR117.1520.

Hunhu hwezvipingamupinyi zvezvinhu: Kana zviri mupakeji yemakambani emakemikari ezuva nezuva zviri zvimwe zvigadzirwa zvinonzwa zvakanyanya okisijeni (senge mamwe mafuta ekuchenesesa) kana hwema hwacho huchichinja-chinja (senge mafuta akakosha kana mamwe mafuta, acids, munyu nemamwe makemikari anoparadza), machubhu ane machubhu mashanu anofanira kushandiswa panguva ino. Nekuti kupenya kweokisijeni kwechubhu ine machubhu mashanu (polyethylene/adhesive resin/EVOH/adhesive resin/polyethylene) kuri 0.2-1.2 units, nepo kupenya kweokisijeni kwechubhu yakajairika yepolyethylene single-layer iri 150-300 units. Munguva yakati, mwero wekurasikirwa nehuremu kwechubhu ine machubhu maviri ine ethanol wakaderera kakawanda pane wechubhu ine machubhu maviri. Pamusoro pezvo, EVOH iethylene-vinyl alcohol copolymer ine hunhu hwakanaka hwekudzivirira uye kuchengetedza hwema (ukobvu hwe15-20 microns ndiyo yakanyanya kunaka).

Kuomarara kwezvinhu: Makambani emakemikari ezuva nezuva ane zvinodiwa zvakasiyana pakuomarara kwemapombi, saka ungawana sei kuomarara kwaunoda? Polyethylene inowanzoshandiswa mumapombi inonyanya kuve polyethylene yakaderera, polyethylene yakawanda, uye polyethylene yakaderera. Pakati pazvo, kuomarara kwepolyethylene yakakura kuri nani pane kwepolyethylene yakaderera, saka kuomarara kwaunoda kunogona kuwanikwa nekugadzirisa chiyero chepolyethylene yakawanda/polyethylene yakaderera.

Kusabatwa nemakemikari: Polyethylene ine huwandu hwakanyanya hwemakemikari inosabatwa nemakemikari zviri nani pane polyethylene ine huwandu hwakaderera.

Kusapindirana kwemamiriro ekunze kwezvinhu: Kuti udzore mashandiro epaipi kwenguva pfupi kana refu, zvinhu zvakaita sekutaridzika kwayo, kusapindirana nekumanikidzwa/kudonha kwemvura, simba rekuvharira, kusapindirana nekukanganiswa kwezvakatipoteredza (ESCR value), kunhuhwirira uye kurasikirwa nezvinhu zvinoshanda zvinofanirwa kufungwa nezvazvo.

Kusarudzwa kwemasterbatch: Masterbatch ine basa rakakosha mukudzora mhando yehose. Saka, pakusarudza masterbatch, kambani inoshandisa inofanira kufunga kana ine mukana wekupararira zvakanaka, kusefa uye kugadzikana kwekupisa, kuramba mamiriro ekunze uye kuramba chigadzirwa. Pakati pavo, kuramba chigadzirwa kwemasterbatch kwakakosha zvikuru panguva yekushandiswa kwehose. Kana masterbatch isingaenderane nechigadzirwa, ruvara rwemasterbatch ruchaenda kuchigadzirwa, uye mhedzisiro yacho yakakomba zvikuru. Saka, makambani emakemikari ezuva nezuva anofanira kuyedza kugadzikana kwezvigadzirwa zvitsva nemahose (miedzo inokurumidza pasi pemamiriro akatarwa).

Mhando dzevarnish uye hunhu hwadzo: Varnish inoshandiswa mupaipi yakakamurwa kuva UV rudzi uye heat drying type, uye inogona kukamurwa kuva pamusoro nepamusoro pakasviba maererano nechitarisiko. Varnish haingopi chete mhedzisiro yakanaka yekuona, asi inodzivirirawo zviri mukati uye ine mhedzisiro yakati yekudzivirira okisijeni, utsi hwemvura uye hwema. Kazhinji, varnish inoomesa kupisa ine kunamira kwakanaka kune inotevera hot stamping uye silk-screen printing, nepo UV varnish ine gloss iri nani. Makambani emakemikari ezuva nezuva anogona kusarudza varnish yakakodzera zvichienderana nehunhu hwezvigadzirwa zvavo. Pamusoro pezvo, varnish yakarapwa inofanira kunge yakanamatira zvakanaka, pamusoro payo pakapfava pasina maburi, kuramba kupeta, kuramba kupfeka, kuramba ngura, uye kusachinja ruvara panguva yekuchengetera.

Zvinodiwa pamusoro wechubhu/mutumbi wechubhu: 1. Pamusoro pemuviri wechubhu panofanira kunge pakatsetseka, pasina mitsetse, mavanga, kukwenya, kana kuchekwa kweganda. Muviri wechubhu unofanira kunge wakatwasuka uye usina kukotama. Ukobvu hwemadziro echubhu hunofanira kunge hwakafanana. Ukobvu hwemadziro echubhu, kureba kwechubhu, uye dhayamita zvinofanirwa kunge zviri mukati mehuwandu hwakatarwa;

2. Musoro wechubhu nemuviri wechubhu yepombi zvinofanira kunge zvakabatana zvakasimba, tambo yekubatanidza inofanira kunge yakachena uye yakanaka, uye upamhi hunofanira kunge hwakafanana. Musoro wechubhu haufanirwe kutsveyamiswa mushure mekubatanidza; 3. Musoro wechubhu nekavha yechubhu zvinofanira kufanana zvakanaka, kupinda nekubuda zvakanaka, uye hazvifanirwe kutsvedza mukati me torque yakatarwa, uye hapafanirwe kuva nemvura kana mhepo inobuda pakati pechubhu nekavha;

Zvinodiwa pakudhinda: Kugadzira mapaipi emvura kunowanzo shandiswa kuprinta kwe-lithographic offset (OFFSET), uye inki yakawanda inoshandiswa yakaomeswa neUV, izvo zvinowanzo da kunamira kwakasimba uye kuramba ruvara rwayo. Ruvara rwekudhinda runofanira kunge rwuri mukati mehupamhi hwakatarwa, nzvimbo yekudhinda inofanira kunge yakarurama, kutsauka kunofanira kunge kuri mukati me0.2mm, uye fonti inofanira kunge yakazara uye yakajeka.

Zvinodiwa pamakepisi epurasitiki: Makepisi epurasitiki anowanzogadzirwa ne polypropylene (PP) injection molding. Makepisi epurasitiki emhando yepamusoro haafanire kunge asina mitsetse inooneka yekutsvedza uye inopenya, mitsetse yemold yakatsetseka, saizi chaiyo, uye inoenderana zvakanaka nemusoro wechubhu. Haafanire kukonzera kukuvara kwechimiro senge kutsemuka kana kutsemuka panguva yekushandiswa kwakajairika. Semuenzaniso, kana simba rekuvhura riri mukati menzvimbo, chivharo chekupfiga chinofanira kukwanisa kutsungirira mapete anopfuura 300 pasina kutsemuka.