Amapayipi ensimbi yekhabhoni eShejuli 40 ahlukaniswe ngokusekelwe enhlanganisela yezici ezihlanganisa isilinganiso sobukhulu bobubanzi nodonga, amandla ezinto ezibonakalayo, ububanzi bangaphandle, ubukhulu bodonga, kanye nomthamo wokucindezela.
Ukuqokwa kweshejuli, njengeShejuli 40, kubonisa inhlanganisela ethile yalezi zici. Kumapayipi eShejuli 40, ngokuvamile aqukethe ubukhulu bodonga obuphakathi, okuhlanganisa ibhalansi phakathi kwamandla nesisindo. Isisindo sepayipi singahluka ngokusekelwe ezicini ezifana nebanga elithile lensimbi yekhabhoni esetshenzisiwe, ububanzi, kanye nobukhulu bodonga.
Ukwengeza ikhabhoni ensimbini kungathinta isisindo, kanti okuqukethwe ikhabhoni okuphezulu ngokuvamile kuholela emapayipini alula. Kodwa-ke, kokubili ukujiya kodonga kanye nobubanzi nakho kudlala indima ebalulekile ekunqumeni isisindo.
IShejuli 40 ibhekwa njengesigaba sokucindezela okuphakathi, esifanele ukusetshenziswa okuhlukahlukene lapho kudingeka khona izilinganiso zokucindezela okuphakathi. Uma udinga ulwazi oluningiliziwe noma usizo mayelana namapayipi ensimbi yekhabhoni eShejuli 40, zizwe ukhululekile ukuxhumana nathi ukuze uthole usizo olwengeziwe.
Ukucaciswa kwepayipi lensimbi yekhabhoni likaShejuli 40
| Usayizi ojwayelekile | DN | Ububanzi bangaphandle | Ububanzi bangaphandle | ukujiya kweshejuli engu-40 | |
| Ubukhulu bodonga | Ubukhulu bodonga | ||||
| [intshi] | [intshi] | [mm] | [intshi] | [mm] | |
| 1/2 | 15 | 0.84 | 21.3 | 0.109 | 2.77 |
| 3/4 | 20 | 1.05 | 26.7 | 0.113 | 2.87 |
| 1 | 25 | 1.315 | 33.4 | 0.133 | 3.38 |
| 1 1/4 | 32 | 1.66 | 42.2 | 0.14 | 3.56 |
| 1 1/2 | 40 | 1.9 | 48.3 | 0.145 | 3.68 |
| 2 | 50 | 2.375 | 60.3 | 0.154 | 3.91 |
| 2 1/2 | 65 | 2.875 | 73 | 0.203 | 5.16 |
| 3 | 80 | 3.5 | 88.9 | 0.216 | 5.49 |
| 3 1/2 | 90 | 4 | 101.6 | 0.226 | 5.74 |
| 4 | 100 | 4.5 | 114.3 | 0.237 | 6.02 |
| 5 | 125 | 5.563 | 141.3 | 0.258 | 6.55 |
| 6 | 150 | 6.625 | 168.3 | 0.28 | 7.11 |
| 8 | 200 | 8.625 | 219.1 | 0.322 | 8.18 |
| 10 | 250 | 10.75 | 273 | 0.365 | 9.27 |
Ipayipi lensimbi yekhabhoni likaSheduli 40 liyigama elijwayelekile losayizi wepayipi elisetshenziswa embonini yokwakha. Libhekisela ekujikeni kodonga lwepayipi futhi liyingxenye yesistimu ejwayelekile esetshenziselwa ukuhlukanisa amapayipi ngokusekelwe ekujikeni kwawo odongeni kanye nomthamo wokucindezela.
Kuhlelo lweShejuli 40:
- "Ishejuli" ibhekisela ekujiyeni kodonga lwepayipi.
- "Insimbi yekhabhoni" ikhombisa ukwakheka kwezinto zepayipi, okuyikhabhoni nensimbi ngokuyinhloko.
Amapayipi ensimbi yekhabhoni e-Schedule 40 avame ukusetshenziswa ezinhlotsheni ezahlukene zokusebenza, okuhlanganisa ukuthuthwa kwamanzi negesi, ukwesekwa kwesakhiwo, kanye nezinjongo zezimboni ezijwayelekile. Ayaziwa ngamandla awo, ukuqina, kanye nokuguquguquka kwawo, okwenza abe ukukhetha okuthandwayo kumaphrojekthi amaningi okwakha nobunjiniyela.
Ukwakheka Kwamakhemikhali Kwepayipi Lensimbi Yekhabhoni Leshejuli 40
Ishejuli 40 izoba nobukhulu obuthile obunqunyiwe, kungakhathaliseki ukuthi insimbi esetshenzisiwe ingakanani noma ingakanani.
| Ibanga A | Ibanga B | |
| C, ubuningi be-% | 0.25 | 0.3 |
| Mn, ubuningi % | 0.95 | 1.2 |
| P, ubuningi % | 0.05 | 0.05 |
| S, ubuningi be-% | 0.045 | 0.045 |
| Amandla okudonsa, min [MPa] | 330 | 415 |
| Amandla okukhiqiza, min [MPa] | 205 | 240 |
Isikhathi sokuthunyelwe: Meyi-24-2024