Uma kuhlolwa amapayipi ensimbi ukuze kutholakale igesi enomfutho ophansi, ukuphakelwa kwamanzi, noma amanethiwekhi okufafaza umlilo,I-EN 10255indinganiso iyireferensi ebanzi cishe kuyo yonke imibuzo yobuchwepheshe. Kwabachwepheshe bokuthenga, kuyinto evamile ukuqhathanisa izingcaphuno ezisekelwe ngokuyinhloko entengo yethani ngalinye. Kodwa-ke, ekwakheni nasekufakeni okungokoqobo, intengo yokuqala ephansi ngokungalindelekile ingaholela ezindlekweni ezinkulu ezifihliwe.
Uma amapayipi alethwa endaweni yephrojekthi ebangela izinkinga ezifana nokuguga kwamathuluzi ngaphambi kwesikhathi ngesikhathi sokufakwa kwentambo, ukuvuza okuncane kwamalunga, noma ukugqwala kwasekuqaleni kwentambo yokuxhuma, ukonga kwezindleko zokuqala kulungiswa ngokushesha ngokubambezeleka kwabasebenzi kanye nezindleko zokulungisa kabusha. Njengethimba lokukhiqiza elinolwazi elisingatha yonke inqubo kusukela ekucutshungulweni kwensimbi eluhlaza kuya ekuhlolweni kokugcina, sikholelwa ukuthi ukuqonda imininingwane embalwa ebalulekile yokukhiqiza kungasiza ekuqinisekiseni ukuthi iphrojekthi yakho ihlala iphephile ngaphakathi kwesabelomali.
Kungani Ukusonta Okubushelelezi Kudinga Ukulawulwa Okuqinile Kokuqukethwe Kwekhabhoni
Isihloko esisemthethweni sencazelo ye-EN 10255 siqokomisa ukuthi la mashubhu aklanyelwe ngqo"Ukushisela kanye nokufaka intambo."Naphezu kwale ncazelo ecacile, abathengi abaningi babika okuhlangenwe nakho okukhungathekisayo ngesikhathi sokufakwa kwendawo, njengokudlidliza okukhulu emishinini yokuthunga ezenzakalelayo, amaphrofayili entambo aqinile noma adabukile, kanye nokuqhekeka njalo kwama-daes okusika abizayo.
Imbangela eyinhloko ivame ukubuyela emuva ebulukhunini obukhulu bezinto kanye nokwakheka kwamakhemikhali okungazinzile.
Ukuze kuncishiswe izindleko zokukhiqiza, abanye abakhiqizi bangasebenzisa i-genericamakhoyili ensimbingezakhiwo zamakhemikhali ezingaguquguquki kakhulu. KwangempelaAmashubhu ebanga le-S195T, ukwakheka kwamakhemikhali kumele kuphathwe kahle kusukela ekuqaleniimpahla eluhlazaisigaba:
Ikhabhoni (C):Kugcinwe ngaphansi kwesihloko0.20%
I-Manganese (Mn):Kulawulwa ngaphansi1.40%
I-Phosphorus (P) kanye ne-Sulphur (S):Imikhawulo ephezulu isethwe ku-0.035% / 0.030%
Ngokugcina okuqukethwe kwekhabhoni kuqinilengaphansi kuka-0.20%umkhawulo, insimbi igcina ukuqina kwayo okufanele. Lapho amathuluzi okusika asendaweni ebamba ipayipi, imishini yezinto zokwakha ibamba kahle nangokulinganayo. Le ndlela ivikela imishini yakho yokufaka intambo ekulimaleni kwangaphambi kwesikhathi futhi iqinisekisa izintambo ezihlanzekile, ezijulile ezihlangana kahle nezihlanganisi ezijwayelekile ukuze kwakheke ijoyinti elithembekile ngokuphelele, elingenawo amanzi.
Ithebula Lemikhawulo Ephelele Ye-OD
Uma usesha imininingwane ye-EN 10255 ku-inthanethi, izifinyezo eziningi ezitholakalayo ziveza umbono olula obonisa inani elilodwa lobubanzi bangaphandle—njengo-48.8 mm wepayipi le-DN40. Kunjiniyela wephrojekthi noma umphathi wekhwalithi, ukuthembela kuphela enombolweni eyodwa eqanjiwe akwanele.
I-EN 10255 ayisebenzi ngokubekezelelana okusekelwe kumaphesenti okungacacile njengokuthi “±1%"Ngenxa yokuthi la mashubhu kumele ahlangane kahle nezinto ezifakwe izintambo noma ezinemiphetho ejwayelekile, indinganiso ichaza i-ububanzi obuphelele obukhulu nobuncane bemilimithangosayizi ngamunye.
Uma ububanzi bepayipi budlula umkhawulo ophezulu ngisho nango-0.1 mm, idayisi yokucupha ingase yehluleke ukuhlangana kahle. Ngakolunye uhlangothi, uma ububanzi buncane kakhulu, ukujula kwentambo okubangelwayo ngeke kwanele, okuvame ukubangela ukwehluleka ngesikhathi sokuhlolwa kwe-hydrostatic. Ngezansi imingcele eqondile egcinwa ngesikhathi sokulinganisa imishini yethu yokusebenzela:
| Usayizi (i-DN) | Usayizi Wentambo (Inch) | Ububanzi be-OD obukhanyayo (mm) | Ububanzi be-OD obuphakathi/obusindayo (mm) | Udonga Olukhanyayo (mm) | Udonga Oluphakathi (mm) | Udonga Olunzima (mm) | Isisindo Esimaphakathi (kg/m) |
| I-DN8 | 1/4″ | 13.2 – 13.6 | 13.2 – 13.9 | 1.8 | 2.3 | 2.9 | 0.641 |
| I-DN10 | 3/8″ | 16.7 – 17.1 | 16.7 – 17.4 | 1.8 | 2.3 | 2.9 | 0.839 |
| I-DN15 | 1/2″ | 21.0 – 21.4 | 21.0 – 21.7 | 2.0 | 2.6 | 3.2 | 1.210 |
| I-DN20 | 3/4″ | 26.4 – 26.9 | 26.4 – 27.2 | 2.3 | 2.6 | 3.2 | 1.560 |
| I-DN25 | 1″ | 33.2 – 33.8 | 33.2 – 34.2 | 2.6 | 3.2 | 4.0 | 2.410 |
| I-DN32 | 1-1/4″ | 41.9 – 42.5 | 41.9 – 42.9 | 2.6 | 3.2 | 4.0 | 3.100 |
| I-DN40 | 1-1/2″ | 47.8 – 48.4 | 47.9 – 48.8 | 2.9 | 3.2 | 4.0 | 3.570 |
| I-DN50 | 2″ | 59.6 – 60.2 | 59.7 – 60.8 | 2.9 | 3.6 | 4.5 | 5.030 |
| I-DN65 | 2-1/2″ | 75.2 – 76.0 | 75.3 – 76.6 | 3.2 | 3.6 | 4.5 | 6.430 |
| I-DN80 | 3″ | 87.9 – 88.7 | 88.0 – 89.5 | 3.2 | 4.0 | 5.0 | 8.370 |
| I-DN100 | 4″ | 113.0 – 113.9 | 113.1 – 114.9 | 3.6 | 4.5 | 5.4 | 12.200 |
| I-DN125 | 5″ | — | 138.5 – 140.6 | — | 5.0 | 5.4 | 16.600 |
| I-DN150 | 6″ | — | 163.9 – 165.1 | — | 5.0 | 5.4 | 19.700 |
(Qaphela: Ngaphansi kweziqondiso ezisemthethweni ze-EN 10255, ubukhulu obukhulu njengo-5″ no-6″ abufaki inketho yochungechunge lokukhanya, emelelwa yi-“—” eshadini.)
Iphrothokholi Yekhwalithi: Ukuqinisekisa Ukuqinisekiswa Kokujiya Okunembile
Ezinye izincwadi zokuphromotha zisikisela ukuthi ukuhlolwa kobukhulu bodonga kwenziwa njalo ngaphakathi enkabeni yepayipi eliqediwe ngesikhathi sokukhiqiza ngesivinini esikhulu. Ngokombono ongokoqobo, ukwenza ukuhlolwa kwe-micrometer ephakathi kwepayipi kukho konke ukwenziwa kokukhiqiza ngesivinini esikhulu akunakwenzeka ngokwesakhiwo. Inqubo yethu yokuqinisekisa ikhwalithi igxile endleleni ecacile, ewusizo, nenembe kakhulu.
Uma isaha elindizayo lisika ipayipi lensimbi elihambayo libe ubude, amandla angokoqobo e-blade ngokungenakugwenywa adala ama-burrs amancane omshini kanye nokuguquguquka komphetho endaweni ethile ebusweni obusikiwe. Ukubeka i-micrometer ejwayelekile ngqo phezu kwaleli rim langaphandle kungaphazamisa ngokwenziwa ukulinganisa, ngezinye izikhathi kufihle iphrofayili yodonga olungaphansi kobukhulu ngokubonisa ukufundwa okungamanga, okukhuphukile.
Ukuze kuvinjelwe le nkinga, ithimba lethu lekhwalithi liqeqeshwe ukuslayida i-micrometer isuke onqenqemeni olusikiwe ukuze idlule ngokuphelele ama-burrs asendaweni kanye nendawo yokuguqulwa. Lokhu kubekwa okuqondile kunikeza ukufundwa okunembile kakhulu ukuqinisekisa ukuthi izinto zihlonipha ukubekezelelana kodonga okuphezulu okuvunyelwe yi--12.5%. Ngaphezu kwalokho, kuzo zonke iziqondiso zokufaka intambo, siqinisekisa ukuthi iziphetho zamapayipi zigcinwa zihlanzekile futhi zibushelelezi ukuze kusekelwe ukuphathwa okuphephile endaweni kanye nokusebenza kwamathuluzi okubushelelezi.
Ukunamathela Okuhlanganisiwe: Ukuvimbela Ukuqhekeka Kwezinki Ngesikhathi Sokuxubha
Kumanethiwekhi okuvikela uketshezi nomlilo, ukuvimbela ukugqwala kwangaphakathi nangaphandle kubalulekile. Ukufaka i-hot-dip kunikeza isivikelo esihle kakhulu, kodwa kubhekene nokuhlolwa okuqondile komshini ngesikhathi sokufakwa: lapho amaqembu esayithi esika imicu, ama-lathe blades asusa ngokoqobo ingxenye yensimbi ejoyintini. Uma ungqimba lwe-zinc lunganamatheli kahle, ukucindezeleka komshini kungabangela ukuthi ungqimba oluzungezile lwe-galvanizing luqhekeke noma luqhekeke njengopende owomile, okushiya insimbi engaphansi isengozini yokugqwala kwasekuqaleni.
Ukuze sibhekane nale nselele,ukucwilisa okushisayoinqubo ihlose amapharamitha asungulwe yi-I-EN 10240imininingwane:Ngaphakathi kweZinc≥55μm(ngokugcizelela ubuso bangaphakathi obubushelelezi obungenazo izigaxa ze-zinc ezirhabaxa) kanyeI-Zinc Engaphandle≥63μm.Siqapha ubude bokugeza nge-asidi kanye namazinga okushisa ebhodweni le-zinc ngokunemba okuphezulu. Lokhu kulinganisela kuvumela i-zinc encibilikisiwe kanye nesisekelo sensimbi ukuthi zihlangane kahle, zakha ungqimba oluqinile lwe-iron-zinc alloy. Lapho amathuluzi okufaka intambo esikwa epayipini, ungqimba lwe-zinc luhlala lunamathele ngokuqinile ensimbini ngaphandle kokuxebuka emuva. Ngisho nasempandeni yemifantu yentambo esanda kunqunywa lapho insimbi engenalutho ivezwa khona, ungqimba lwe-zinc oluzungezile luhlinzeka ngokuvikelwa kwe-anodic okuzidelayo, okusiza ekunciphiseni ukugqwala isikhathi eside.
Amakamelo okuhlola isifutho sikasawoti ahlola amasampula okumboza nge-hot-dip galvanized.
Ukuzibophezela Kwethu Kwekhwalithi Nokuthobela Imithetho
Emigqeni yokuhlinzeka ngempahla yezimboni, ukulinganisela isabelomali sokuthenga nokusebenza kwangempela kokufakwa kubalulekile. Ububanzi bonke bobukhulu, ukulinganiselwa kwekhabhoni, kanye nobukhulu bokumboza okuchazwe ngenhla akuyona into ongayikhetha; kumelela isisekelo sethu sokukhiqiza esijwayelekile.
Imigqa yethu yokukhiqiza isebenza ngokuqinile ngaphansi kwezinhlelo zokulawula ikhwalithi ezibhaliwe ukuqinisekisa ukuthi yonke inqwaba ihambisana nezincazelo zobuchwepheshe ezidingekayo. Sizibophezele ekuletheni amapayipi ethu ensimbi ngokuhambisana ngokuqinile nezindinganiso, futhi i-oda ngalinye lihlolwa ngaphakathi ngaphambi kokuthunyelwa kokugcina.
Ngaphezu kwalokho,I-YUANTAI DERUNwamukele ngokugcwele futhi ubambisane ngenkuthalo nanoma yiziphi izinhlangano zokuhlola ezizimele, ezivela eceleni eziqokwe amakhasimende ethu. Ikhwalithi ethembekile incike ekuhambisaneni nobuchwepheshe kanye nokucaca kokukhiqiza okucacile.
Isikhathi sokuthunyelwe: Juni-09-2026
