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Inkqubo yokwenziwa kombhobho wePolyethylene yindlela yokukhutshwa kwezixhobo zegranular ezingeniswa kwi-extruder kunye nobushushu.

Ukuveliswa kwemibhobho ye-polyethylene

Izinto ke zicutshungulwa ngesikrufu (i-spiral rod) ukuze ityhale kwaye emva koko ikhutshwe kwi-extruder kwi-mold.Ukutya okuphekwe emva kokushiya i-mold, i-cross calibrator kunye noxinzelelo lwetanki ye-vacuum zenziwe ngokufanelekileyo.Xa uphuma kumphezulu wetyhubhu ye-calibrator ngamaleko okuhamba kwamanzi uyapholiswa.
Iitanki ye-polyethylene yobushushu obuphezulu emva kokususwa kwi-vacuum kwaye iitanki zokupholisa ngokuthe ngcembe ziyancipha ngokusebenzisa amanzi abandayo.
imilinganiselo ethile kunye nokusika.
Yonke inkqubo yokuvelisa i-automation ngokupheleleyo ngezixhobo ezilawula kwaye zibeke esweni umgangatho wemveliso yokugqibela iyamkeleka kwaye igama lenkampani kunye nemigangatho.
Iimvavanyo zesiqhelo zemveliso yombhobho we-polyethylene
Iindidi zovavanyo lwemveliso yombhobho we-PE zezi zilandelayo:
Isalathiso sokunyibilika sokunyibilika (INSO 6980-1)
Ukugqiba ukuxinana (INSO 7090-1)
Ukumiselwa komsizi (ISO 6964)
Ukuhanjiswa kwesoot (ISO 18553)
Uvavanyo lwe-tensile (ISO 6259-1,3)
Uvavanyo loxinzelelo lwe-Hydrostatic (ISIRI 12181-1,2)
Uvavanyo loxinzelelo lwe-Burst (ASTM D 1599)
Buyela kuvavanyo lwe-thermal (INSO 17614)
Umlinganiselo kunye ityhubhu yoviwo olubonakalayo (INSO 2412)
Uvavanyo lokuzinza kwe-Thermal phambi kwe-oxygen OIT (ISIRI 7186-6)

Isalathiso sokunyibilika sokunyibilika (INSO 6980-1):
Kolu vavanyo, izinga lokunyibilika kwezinto eziphathekayo lilinganiswa ngexesha elimiselweyo kunye nobushushu, ukuya kwiziphumo, indlela yokusingatha izinto ngaphakathi kwe-extruder kufuneka ziqwalaselwe.
Uvavanyo lwemathiriyeli ekrwada (ukuqinisekisa umgangatho wemathiriyeli) kunye nakwimveliso.Ixabiso le-MFI lemveliso aliyi kuba ngaphezu kwe-20% ± imathiriyeli ekrwada yahlukile kwiMFI.
• Ukumisela ukuxinana (INSO 7090-1)
Uxinaniso lwemathiriyeli ekrwada kunye neendlela zoxinaniso lwemveliso zisebenzisa ibhalansi echanekileyo yolwelo kunye noxinaniso oluthile kumiselwa.“Inani lokuxinana kwemveliso, umgangatho wenkqubo yemveliso.
• ukumiselwa komsizi (ISO 6964) kunye nokuhanjiswa komsizi (ISO18553)
Umsizi kwimathiriyeli ekrwada kunye nemveliso yokugqibela imiselwe.
Ipesenti evumelekileyo yekhabhoni emnyama kumbhobho we-polyethylene 2 ukuya kwi-5.2% ubunzima ekufuneka isasazwe ngokulinganayo kuwo wonke.

• Uvavanyo (ISO 6259-1,3)
Ukusebenzisa ilabhoratri ekhethekileyo, iipropathi zomatshini zemibhobho ye-polyethylene, kubandakanywa amandla aphezulu ngokuchasene nomthwalo wangaphandle, ukwanda ngexesha lekhefu, i-coefficient of elasticity kunye nokuphambuka phantsi kwemithwalo yamanqaku amathathu inokulinganiswa kwaye ngokweziphumo zovavanyo, sinokuyivavanya ukusebenza kwemveliso ngexesha lokusebenza.
• Uvavanyo loxinzelelo lwe-Hydrostatic (ISIRI 12181-1,2)
Ukuze kuhlolwe amandla emveliso ngokuchasene novavanyo loxinzelelo lwe-hydrostatic lwenziwa., ibekwe phantsi koxinzelelo lwangaphakathi rhoqo.
Nasiphi na isiphene kwiisampulu (ukuqhekeka, ukuqhuma, ukudumba kwendawo, ukuvuza kunye nokuqhekeka okuhle) kuthetha ukuba imveliso ayiphumelelanga.
• Uvavanyo loxinzelelo lwe-Burst (ASTM D 1599)
Kolu vavanyo, ityhubhu isampulu ezidadayo echibini kunye lobushushu rhoqo 23 ° C kwaye emva koko ibekwe phantsi koxinzelelo olwandayo lwangaphakathi, ukuze ekuhambeni kwexesha 60 ukuba 70 imizuzwana, ukudumba kwaye emva koko kubangele ukuqhekeka.

Umbhobho ngaphandle kokuqhekeka okanye ukuqhuma kunye ne-longitudinal slot ayikhuselekanga ukuba isetyenziswe.
• Uvavanyo lokufudumeza ngasemva (ISO 2505)
Ubude obuqikelelwayo beesampulu ze-20 cm zibe mnye, kunye nokujikeleza komoya oshushu (2 ± 110) ° C kwiyure enye ukuya kwezintathu (ngokobukhulu bodonga lombhobho), kwaye emva kokupholisa ubude obunjalo bombhobho, kuya kuba ngaphantsi kwe. imeko yokuqala kubushushu obuqhelekileyo, nto leyo enokukhokelela kutshintsho kwimibhobho yokuziphatha efakwe kumbhobho ojikelezayo, ngoko ke umda wovavanyo ongasentla utshintsho longitudinal (ukuya kwi-3%) elabhoratri.

• ityhubhu yovavanyo lokulinganisa kunye nokubonwayo (INSO 2412)
Imibhobho yePolyethylene kufuneka ingabi naburhabaxa (ngaphakathi nangaphezulu) kunye nemingxuma enzulu.Izibonda ezincinci ukuba azinciphisi ukutyeba zibe ngaphantsi komda, azinamsebenzi.
Ukutyunjwa ngokuthe ngqo kobunzima bodonga lombhobho usebenzisa i-ultrasonic thickness gauge calibrated calipers kwicandelo lokusika ngexesha lexilongo.
Idayamitha yangaphandle yombhobho kusetyenziswa iibhanti zentsimbi ezihleliweyo (Sykrvmtr) kunye nesebe lilinganisiwe kwaye ixabiso eliphakathi liyaxelwa.