I-ISO 21809-1isebenza kwiinkqubo zemibhobho ezingcwatywe okanye ezingaphantsi komhlaba kwishishini leoyile negesi kwaye ichaza iimfuno zengubo zangaphandle zokukhusela ukugqwalaI-3LPE kunye ne-3LPPngenxaimibhobho yentsimbi edibeneyo nengenamthungo.
Kukho iindidi ezintathu zezinto zokugquma umphezulu, kuxhomekeke kuhlobo lwezinto zokugquma umphezulu:
A: I-LDPE (i-polyethylene enoxinano oluphantsi);
B: MDPE/HDPE (i-polyethylene enoxinano oluphakathi)/(i-polyethylene enoxinano oluphezulu);
C: I-PP (iPolypropylene).
Iimfuneko zoxinano lwento nganye zichazwe ngokweenkcukacha kwicandelo elilandelayo malunga neemfuno zezinto ezintathu ezikrwada.
| Iklasi yokwaleka | Izinto ezikwimaleko ephezulu | Ubushushu boyilo (°C) |
| A | I-LDPE | -20 ukuya ku + 60 |
| B | I-MDPE/HDPE | -40 ukuya ku + 80 |
| C | PP | -20 ukuya ku + 110 |
Inkqubo yokwaleka kufuneka ibe neengqimba ezintathu:
Umaleko woku-1: i-epoxy (ulwelo okanye umgubo);
Umaleko wesibini: iglu;
Umaleko wesithathu: Umaleko ophezulu we-PE/PP osetyenziswa yi-extrusion.
Ukuba kuyimfuneko, uboya oburhabaxa bungafakwa ukuze kwandiswe ukumelana nokutyibilika. Ingakumbi apho kufuneka ukubamba okuphuculweyo kunye nokunciphisa umngcipheko wokutyibilika.
Ubukhulu Bomaleko we-Epoxy Resin
Ubuninzi be-400 um
Ubuncinane: Ulwelo epoxу: ubuncinane 50um; FBE: Ubuncinci be-125um.
Ubukhulu Bomaleko Oncamathelayo
Ubuncinane be-150um emzimbeni wombhobho
Ubukhulu obupheleleyo bokugquma
Ubukhulu bomaleko ochasene nokugqwala buyatshintshwa ngomthwalo wendawo kunye nobunzima bombhobho,kwaye inqanaba lobukhulu beleyali yokulwa nokugqwala kufuneka likhethwe ngokweemeko zokwakha, indlela yokubeka imibhobho, iimeko zokusetyenziswa, kunye nobukhulu bombhobho.
I-PM bubunzima bombhobho wentsimbi ngemitha nganye.
enokubuzwa ngokujonga ulwazi olufanelekileyoitafile yobunzima bomgangatho wombhobho wentsimbi, okanye ngefomula:
I-PM=(DT)×T×0.02466
U-D bububanzi obungaphandle obuchaziweyo, obuvezwa nge-mm;
U-T bubukhulu bodonga obuchaziweyo, obuchazwe nge-mm;
Iimfuno ze-Epoxy Material
Iimfuno zeZinto ezincamathelayo
Iimfuneko ze-PE/PP Top Layer
Inkqubo yokulwa nokugqwala ingahlulwahlulwa ngolu hlobo:
1. Ukulungiswa komphezulu;
2. Ukusetyenziswa kokwaleka
3. Ukupholisa
4. Ukunciphisa
5. Ukumakisha
6. Ukuhlolwa kwemveliso egqityiweyo
1. Ukulungiswa komphezulu
Iimfuno ezifanayo zifumaneka kwimigangatho ye-SSPC kunye ne-NACE, kwaye oku kulandelayo yimbalelwano ngokubanzi:
| I-ISO 8501-1 | I-NACE | I-SSPC-SP | Ukutyunjwa |
| Ngomhla 2.5 | 2 | 10 | Ukucoca isinyithi esiphantse sibe mhlophe |
| uMgqibelo 3 | 1 | 5 | Ukucoca ngentsimbi emhlophe |
Nceda uqaphele ukuba isiphumo se-Sa 2.5 asilungiswanga ngokuxhomekeke kwinqanaba lokugqwala kombhobho wentsimbi, ohlulwe ngo-A, B, C, kunye no-D, ohambelana neziphumo ezi-4.
2. Isicelo sokugquma
Qinisekisa ukuba ubushushu bokufudumeza kwangaphambili kunye nesantya somgca wombhobho wentsimbi kwinkqubo yokugquma zifanelekile ukuze kufezekiswe ukuqiniswa ngokupheleleyo komgubo kunye nokuqinisekisa ukunamathela kombala kunye nokulawula ubukhulu bombala.
Ubukhulu bomaleko wokukhusela ukugqwala bunxulumene nemilinganiselo yezixhobo zokugquma.
3. Ukupholisa
Ingubo esetyenzisiweyo mayipholiswe kubushushu obuthintela umonakalo ekuphatheni ngexesha lokugqiba nokuhlolwa kokugqibela.
Ngokubanzi, iqondo lobushushu lokupholisa le-3LPE alikho ngaphezulu kwe-60℃, kwaye iqondo lobushushu lokupholisa le-3LPP liya kuba phezulu kancinci.
4. Ukunciphisa
Ubude obuthile bokugquma kufuneka bususwe kuzo zombini iziphelo zombhobho kwaye umaleko wokukhusela ukugqwala akufuneki ubekwe kwi-engile engaphezulu kwama-30° ukuthintela umonakalo onokwenzeka kugquma lokukhusela ukugqwala ngexesha lokuwelda.
5. Ukumakisha
Ukuthobela imigangatho kunye neemfuno zabathengi.
Ezi mpawu mazifakwe istencil okanye zipeyintwe ukuqinisekisa ukuba amagama acacile kwaye akapheli.
6. Ukuhlolwa kweMveliso egqityiweyo
Ukuhlolwa okupheleleyo kwemibhobho yokulwa nokugqwala egqityiweyo ukuhlangabezana neemfuno ze-ISO 21809-1.
Izicelo ze-3LPE
Iingubo ze-3LPE zibonelela ngokumelana okuphezulu kweekhemikhali, ukhuseleko oluhle kakhulu loomatshini kunye nokuqina okuhle, kunye neendleko eziphantsi zokulungisa.
Ifanelekile kwiipayipi ezigqunywe okanye ezingaphantsi kwamanzi ezifuna ukumelana nokugqwala okuphezulu kunye nokukhuselwa koomatshini kwiindawo zomhlaba nasemanzini.
Isetyenziswa kakhulu kwiinkqubo zemibhobho yokuthutha ioyile, igesi kunye namanzi.
Izicelo ze-3LPP
Iingubo ze-3LPP zinokumelana nobushushu obuphezulu kwaye zizinzile kakhulu kwiikhemikhali kune-polyethylene. Nangona kunjalo, zinokuba buthathaka xa kubushushu obuphantsi.
Ifanelekile kumaqondo obushushu aphezulu nakwiindawo ezifuna kakhulu, njengokufaka imibhobho kwiindawo ezishushu okanye kufutshane nezityalo zokucubungula iikhemikhali.
Isetyenziswa kakhulu kwiinkqubo zemibhobho yeoyile negesi apho kufuneka ukusebenza okushushu kakhulu.
I-DIN 30670: Iingubo zepolyethylene zemibhobho yentsimbi kunye nezixhobo.
Lo ngumgangatho weshishini laseJamani ngokukodwa kwiingubo ze-polyethylene zeepayipi zentsimbi kunye nezinto ezizifakelayo.
I-DIN 30678: Iingubo zePolypropylene ezikwimibhobho yentsimbi.
Inkqubo yokugquma i-polypropylene ngokukodwa kwiipayipi zentsimbi.
GB/T 23257: Imigangatho yetekhnoloji yokugquma i-polyethylene kwimibhobho yentsimbi egqunyiweyo.
Lo ngumgangatho wesizwe eTshayina oquka iteknoloji yokugquma i-polyethylene kwimibhobho yentsimbi egqunywe phantsi komhlaba.
I-CSA Z245.21: Iingubo zangaphandle ezifakwe kwizityalo zombhobho wentsimbi.
Lo ngumgangatho weCanadian Standards Association (CSA) ochaza iimfuno zeengubo zangaphandle zepolyethylene ezisetyenziselwa ukukhusela umbhobho wentsimbi.
Ukugubungela imveliso ngokupheleleyo: Sinikezela ngoluhlu olubanzi lweepayipi zentsimbi yekhabhoni ukusuka kwii-alloys ezisisiseko ukuya kwii-alloys eziphambili ukuhlangabezana neemfuno zakho ezahlukeneyo.
Isiqinisekiso somgangatho ophezuluZonke iimveliso zihambelana nemigangatho yomgangatho wamazwe ngamazwe, efana ne-ISO 21809-1, eyenzelwe ngokukodwa iimfuno zokulwa nokugqwala kwishishini leoyile negesi.
Inkonzo eyenzelwe wena: Asigcini nje ngokubonelela ngeemveliso ezisemgangathweni, kodwa ngokuxhomekeke kwiimfuno zeprojekthi kunye neemeko zokusingqongileyo, iingubo ezichasene nokugqwala kunye nemibhobho yentsimbi zinokwenziwa ngokwezifiso ukuqinisekisa ukusebenza kakuhle kunye nokusebenza kakuhle kweendleko.
Inkxaso yobugcisa kunye nenkonzo yabathengiIqela lethu leengcali libonelela ngeengcebiso zobugcisa kunye nenkxaso ukunceda abathengi bakhethe izisombululo ezifanelekileyo zemibhobho yentsimbi kunye nezisombululo zokulwa nokugqwala ukuqinisekisa ukuphunyezwa ngempumelelo kweeprojekthi zabo.
Impendulo ekhawulezileyo kunye nokuhanjiswa: Ngesixa esikhulu sempahla kunye nenkqubo yothutho esebenzayo, siyakwazi ukuphendula ngokukhawuleza kwiimfuno zabathengi kwaye siqinisekise ukuhanjiswa ngexesha elifanelekileyo.
Sijonge phambili ekusebenzisaneni nawe ukubonelela ngezisombululo zombhobho wentsimbi osemgangathweni ophezulu kunye nowokugquma iiprojekthi zakho. Nceda uzive ukhululekile ukunxibelelana nathi ukuze ufumane iinkcukacha ezithe vetshe ngemveliso, siyavuya ukukunceda ufumane ukhetho lombhobho wentsimbi olulungele iimfuno zakho!
