Eyona Njineli yeNsimbi iPrestressed Concrete Steel Strand
Intambo yentsimbi egxininisiweyo yintambo yentsimbi edibeneyo eyenziwe nge-2, i-3, i-7 okanye i-19 yeengcingo zetsimbi eziphakamileyo, kwaye uye wafumana unyango lokunciphisa uxinzelelo (unyango lokuzinzisa), olufanelekileyo kwikhonkrithi egxininisiweyo okanye iinjongo ezifanayo.
Iimpawu eziphambili zemisonto yentsimbi ecinezelekileyo zinamandla aphezulu, ukusebenza kakuhle kokuphumla, kwaye ngokuthe ngqo xa kutyhilwa. Ibakala lamandla okuqina eliqhelekileyo li-1860 MPa, kwaye kukho amabakala amandla afana ne-1720, 1770, 1960, 2000, kunye ne-2100 MPa. Amandla esivuno sale ntsimbi nawo aphezulu kakhulu.
I-high-carbon steel wire rod ibanda-itsalwa kwintsimbi yentsimbi emva konyango lomphezulu, kwaye ke inani elithile leengcingo zetsimbi lijijelwe kwimicu ngokwesakhiwo se-strand yensimbi, kwaye emva koko zenziwe ngenkqubo yokunciphisa uxinzelelo. Ukuze kwandiswe ukuqina, ucingo lwentsimbi lunokuba nentsimbi okanye i-non-metal plating okanye i-coating, njenge-galvanizing, i-epoxy coating, njl. Ukuze ukwandise amandla okubambisana kunye nekhonkrithi, umphezulu unokuba ne-nicks kunye nokunye. I-strand yensimbi ebunjiweyo ye-prestressed idlula inkqubo yokunyanzeliswa kwe-mold emva kwe-stranding, isakhiwo sinzima kwaye i-surface layer ifanelekile ngakumbi kwi-anchoring. Ukwenza iintambo zentsimbi ezingabotshwanga (iintambo zentsimbi ezingabotshwanga) sebenzisa iintambo zentsimbi ezixhaswe ngaphambili, ezigqunywe ngegrisi echasene nomhlwa okanye iparafini, emva koko isongelwe ngepolyethylene ephezulu (HDPE).
Iimpawu zoomatshini
| Dn/mm | Tensile strength Rm/MPa | Amandla aphezulu ensimbi yonke ye-strandFm / KN | Amandla awondisiweyo angalinganiyo achaziweyo FP0.2/KN | Amandla okwandisa ngokupheleleyo (L0≥500 mm) Agt/% | Ukusebenza kokuphumla koxinzelelo | Umgangatho olawulayo | |
| Umthwalo wokuqala ulingana nepesenti ephezulu yegama/% | Izinga lokuphumla koxinzelelo emva kwe1000hr/% | ||||||
| 15.2 | ≥1860 | ≥260 | ≥234 | ≥3.5 | 70 | ≤2.5 | I-GB/T5224-2014 |
| 80 | ≤4.5 | ||||||
| 15.24 | ≥1860 | ≥260.7 | ≥234.6 | ≥3.5 | 70 | ≤2.5 | I-ASTMA416-2003 |
Ubungakanani kunye nokutenxa
| Dn/mm | Ukutenxa okuvumelekileyo kwedayamitha/mm | Isalathiso sendawo enqamlezileyo sn/mm2 |
| 15.20 | +0,40 -0.20 | 140 |
| 15.24 | +0,65 -0.15 | 140 |
Iinkcukacha Bonisa
