Ukuthengwa kwezinto zokupakisha | Indlela yokukhetha iimveliso zehose zeplastiki eziphezulu

Ukukhethwa kunye nomgangatho wezinto eziphathekayo zingundoqo ekuqinisekiseni umgangatho wee-hoses, eziza kuchaphazela ngokuthe ngqo ukusetyenzwa kunye nokusetyenziswa kokugqibela kwee-hoses. Izinto zemibhobho yeplastiki ziquka i-polyethylene (ye-tube body kunye nentloko yetyhubhu), i-polypropylene (i-tube cover), i-masterbatch, i-barrier resin, i-inki yokushicilela, i-varnish, njl. Ngoko ke, ukukhethwa kwayo nayiphi na into iya kuchaphazela ngokuthe ngqo umgangatho we-hose. Nangona kunjalo, ukukhethwa kwezinto eziphathekayo kuxhomekeke kwizinto ezifana neemfuno zococeko, iipropati zomqobo (iimfuno ze-oksijini, umphunga wamanzi, ukugcinwa kwevumba, njl.), kunye nokumelana nemichiza.

Ukukhethwa kwemibhobho: Okokuqala, izinto ezisetyenzisiweyo kufuneka zihlangabezane nemigangatho efanelekileyo yococeko, kunye nezinto ezinobungozi ezifana nesinyithi esinzima kunye ne-fluorescent agents kufuneka zilawulwe ngaphakathi koluhlu olumiselweyo. Ngokomzekelo, kwimibhobho ethunyelwa e-United States, i-polyethylene (PE) kunye ne-polypropylene (PP) esetyenzisiweyo kufuneka ihlangabezane ne-US Food and Drug Administration (FDA) umgangatho we-21CFR117.1520.

Iipropathi zomqobo zezixhobo: Ukuba imixholo yokupakishwa kweenkampani zemichiza yemihla ngemihla zezinye iimveliso ezibuthathaka kakhulu kwioksijini (njengezinye izinto zokuthambisa ezimhlophe) okanye ivumba elimnandi liyaguquguquka kakhulu (njengeoyile efunekayo okanye ioyile, iiasidi, iityuwa kunye nevumba elimnandi. ezinye iikhemikhali ezonakalisayo), iityhubhu ezidityanisiweyo ezine-five-layer kufuneka zisetyenziswe ngeli xesha. Ngenxa yokuba ukunyanzeliswa kwe-oksijeni ye-tube ye-five-layer co-extruded (i-polyethylene / i-adhesive resin / i-EVOH / i-adhesive resin / i-polyethylene) i-0.2-1.2 iiyunithi, ngelixa i-oxygen permeability ye-tube ye-polyethylene eyodwa-layer yi-150-300 iiyunithi. Ngexesha elithile, izinga lokulahleka kobunzima betyhubhu edibeneyo equlethe i-ethanol ngamaxesha amaninzi angaphantsi kunelo letyhubhu eyodwa. Ukongeza, i-EVOH yi-ethylene-vinyl alcohol copolymer eneempawu ezigqwesileyo zokuthintela kunye nokugcinwa kwevumba (ubukhulu be-15-20 microns yeyona nto ifanelekileyo).

Ukuqina kwezinto eziphathekayo: Iinkampani zemichiza zemihla ngemihla zineemfuno ezahlukeneyo zokuqina kweehoses, ngoko ke ungafumana njani ubunzima obufunwayo? I-polyethylene edla ngokusetyenziswa kwimibhobho ikakhulu i-polyethylene yoxinaniso oluphantsi, i-polyethylene ephezulu, kunye ne-linear low-density polyethylene. Phakathi kwabo, ukuqina kwe-polyethylene ephezulu kubhetele kune-polyethylene ephantsi, ngoko ke ubunzima obufunwayo bunokufezekiswa ngokulungelelanisa umlinganiselo we-polyethylene / i-polyethylene ephantsi.

Ukumelana neekhemikhali zezinto eziphathekayo: I-polyethylene ephezulu yoxinaniso inokumelana neekhemikhali ezingcono kune-polyethylene ephantsi.

Ukumelana nemozulu yezinto eziphathekayo: Ukulawula ukusebenza kwexesha elifutshane okanye ixesha elide lombhobho, izinto ezifana nenkangeleko, ukumelana noxinzelelo / ukuchasa ukuhla, ukutywinwa, ukunyanzeliswa koxinzelelo lwendalo (ixabiso le-ESCR), ivumba kunye nokulahlekelwa kwezithako ezisebenzayo ukuba ithathelwe ingqalelo.

Ukukhethwa kwe-masterbatch: I-Masterbatch idlala indima ebalulekileyo ekulawuleni umgangatho we-hose. Ngoko ke, xa ukhetha i-masterbatch, inkampani yomsebenzisi kufuneka iqwalasele ukuba ingaba ne-dispersibility efanelekileyo, i-filtration kunye nokuzinza kwe-thermal, ukumelana nemozulu kunye nokuchasana kwemveliso. Phakathi kwabo, ukuchasana kwemveliso ye-masterbatch kubaluleke kakhulu ngexesha lokusetyenziswa kwe-hose. Ukuba i-masterbatch ayihambelani nemveliso, umbala we-masterbatch uya kufudukela kwimveliso, kwaye iziphumo zibi kakhulu. Ngoko ke, iinkampani zeekhemikhali zemihla ngemihla kufuneka zivavanye ukuzinza kweemveliso ezintsha kunye ne-hoses (uvavanyo olukhawulezayo phantsi kweemeko ezichaziweyo).

Iindidi zevanishi kunye neempawu zazo: I-varnish esetyenziswe kwi-hose ihlulwe ngohlobo lwe-UV kunye nohlobo lokumisa ukushisa, kwaye lunokwahlulwa lube ngumphezulu oqaqambileyo kunye nomphezulu we-matte ngokwembonakalo. I-Varnish ayinikezeli kuphela imiphumo emihle ebonakalayo, kodwa ikhusela iziqulatho kwaye inefuthe elithile lokuthintela i-oksijeni, umphunga wamanzi kunye nephunga elimnandi. Ngokubanzi, ivanishi eyomisa ubushushu inonamathela kakuhle kwisitampu esilandelayo esishushu kunye noshicilelo lwesikrini sesilika, ngelixa ivanishi ye-UV ineglosi engcono. Iinkampani zemichiza yemihla ngemihla zinokukhetha ivanishi efanelekileyo ngokweempawu zeemveliso zazo. Ukongezelela, i-varnish ephilileyo kufuneka ibe nokubambelela kakuhle, indawo egudileyo ngaphandle kokugoba, ukugoba ukugoba, ukuxhathisa, ukuxhathisa ukubola, kunye nokungabikho kombala ngexesha lokugcinwa.

Iimfuno ze-tube body / head tube: 1. Umphezulu womzimba wombhobho kufuneka ube bushelelezi, ngaphandle kwemivimbo, i-scratches, i-strains, okanye i-shrinkage deformation. Umzimba wombhobho kufuneka uthe tye kwaye ungagobi. Ubukhulu bodonga lwetyhubhu kufuneka bufane. Ubukhulu bodonga lwetyhubhu, ubude betyhubhu, kunye nokunyamezelana kwedayamitha kufuneka kube ngaphakathi koluhlu oluchaziweyo;

2. Intloko yetyhubhu kunye nomzimba wombhobho we-hose kufuneka udibaniswe ngokuqinileyo, umgca wokudibanisa kufuneka ucoceke kwaye uhle, kwaye ububanzi bufanele bufane. Intloko yetyhubhu ayifanele ijike emva kokudibanisa; 3. Intloko yetyhubhu kunye nekhava yetyhubhu kufuneka ihambelane kakuhle, i-screw ngaphakathi nangaphandle kakuhle, kwaye kungabikho ukutyibilika ngaphakathi kwinqanaba le-torque elichaziweyo, kwaye akufanele kubekho amanzi okanye ukuvuza komoya phakathi kombhobho kunye nesigqubuthelo;

Iimfuno zoshicilelo: Ukusetyenzwa kwe-hose ngokuqhelekileyo kusebenzisa i-lithographic offset printing (OFFSET), kwaye ininzi ye-inki esetyenziswayo i-UV-yomisiwe, edla ngokufuna ukunamathela okuqinileyo kunye nokuchasana nokuguqulwa kwebala. Umbala wokuprinta kufuneka ube phakathi koluhlu lobunzulu obuchaziweyo, indawo engaphezulu kufuneka ichaneke, ukutenxa kufuneka kube ngaphakathi kwe-0.2mm, kwaye ifonti kufuneka iphelele kwaye icace.

Iimfuno zeminqwazi yeplastiki: Iminqwazi yeplastiki idla ngokwenziwa nge-polypropylene (PP) yokubumba inaliti. Iminqwazi yeplastiki yomgangatho ophezulu kufuneka ingabi nemigca ecacileyo yokucutheka kunye nokudanyaza, imigca yokubumba egudileyo, imilinganiselo echanekileyo, kunye nokulungelelana okugudileyo kunye nentloko yetyhubhu. Akufunekanga babangele umonakalo owenziwe njenge-brittle cracks okanye i-cracks ngexesha lokusetyenziswa okuqhelekileyo. Ngokomzekelo, xa amandla okuvula ephakathi koluhlu, i-flip cap kufuneka ikwazi ukumelana nama-folders angaphezu kwama-300 ngaphandle kokuphuka.