PC Steel Strand
01
Kub - Dipped Galvanized Prestressed Steel Strand
Khoom Taw Qhia
Kub-dipped Galvanized PC Strand tsis tshua muaj so prestressed steel strand yog ua los ntawm xya kub-dipped galvanized round steel nyob ntawm tej nrog zoo corrosion kuj, uas muaj peev xwm mus cuag lub neej ntawm cov khoom nyob rau hauv lub xeev ntawm corrosive ib puag ncig xws li cov ntug hiav txwv dej, uas tau lees paub raws li ib daim ntawv zoo ntawm kev tiv thaiv corrosion tam sim no thiab thoob ntiaj teb.
Cov txheej txheem no siv tau rau kev txuas txuas txuas, cov khoom sib txuas ruaj khov, nqa lossis kho qhov nro ntawm cov tsev thiab lwm cov txheej txheem prestressed, uas tsis yog siv ncaj qha rau hauv cov pob zeb grouting, txoj kab uas hla: 12.7mm, 15.mm, 15.7mm, 17.8mm, lub zog Chav kawm: 1770MPa, 1860 MPa, 1960MPa. (tom qab no hu ua "steel strand").
Cov qauv ntawm 1x7, 1x19 kub-dipped galvanized prestressed steel strand series khoom, lub zog tensile uas muaj peev xwm ncav cuag 1860MPa thiab tib specifications li dawb & round PC steel strand nyob rau hauv cov nqe lus ntawm kev kawm theem acc.to GB / T 33363, ASTM A416, EN10186, thiab NFA35-035 thiab lwm yam.
Khoom nta
Cov khoom tuaj yeem tsim tau raws li qhov kev thov ntawm zinc txheej los ntawm cov neeg siv khoom, zinc txheej tuaj yeem ncav cuag 250 gsm lossis siab dua, qhov sib xws ntawm zinc txheej txheej yog 3-4 zaug yam tsis muaj tooj liab, thiab adhesion tsis tawg thiab tsis tev. nyob rau hauv cov xwm txheej los ntawm winding 8 lub voj voog tom qab zinc coated .
Nyob ntawm lub tuam txhab cov cuab yeej siv siab heev, peb tuaj yeem tsim cov txheej txheem galvanized kom tau raws li cov kev cai tshwj xeeb ntawm cov neeg siv ntawm zinc txheej zoo, nto zoo, thiab lwm yam.
Muab piv nrog PC steel strand yam tsis muaj txheej thiab galvanized PC steel strand, lub qub tshwm liab xeb tom qab ntsev tshuaj tsuag rau 24 teev.
Kev hloov pauv ntawm PC steel strand yam tsis muaj txheej thiab galvanized PC steel strand tom qab 21 hnub ntawm nruab nrab ntsev tsuag tshuaj ntsuam raws li hauv qab no,
Cov khoom siv
1) Cov khoom siv tuaj yeem siv rau hauv kev tsim kho engineering thiab thee mine txoj kev txhawb nqa engineering nyob rau hauv ib puag ncig hnyav.
2) Nyob rau hauv xyoo tas los no, nws kuj tau siv nyob rau hauv lub tshav pob ntawm lub zog cua. "1x7-nruab nrab 21.6mm, Loj-Sized Kub-Dipped Galvanized PC Steel Strand", uas tau thov nyob rau hauv lub ntiaj teb no thawj "160m, low-cry-speed prestressed ncej cua turbine ntauwd", uas muaj peev xwm nqa, uas yog conductive los txhim kho cua tsis kam ntawm tus pej thuam. Nrog zoo corrosion kuj, uas tuaj yeem txuas ntxiv kev pab cuam lub neej ntawm tus pej thuam.
Lub ntiaj teb thawj 160m qis cua ceev sim siab ntauwd hauv Shandong
Specifications ntawm Kub-dipped Galvanized Steel Strand (Ref.standard GB/T33363-2016)
1) Deviations ntawm Dimensions, Cheeb Tsam, Nyhav, Hlau Dia.and Strand Dia.
| Nws nominal. (mm) | Hla ntu ntu (㎟) | Qhov hnyav ib Meter (g / m) | Qhov txawv nruab nrab ntawm cov xaim thiab sab nraud (min.mm) | Deviation ntawm Strand Dia. (mm) |
| 12.7 ib | 98.70 ib | 771 ib | 0.08 ib | -0.15 +0.30 Nws |
| 15.2 | 140.0 Nws | 1093 ib | 0.11 | -0.15 + 0.40 Nws |
| 15.7 ib | 150.0 Nws | 1172 ib | 0.12 | |
| 17.8 ib | 191.0 Nws | 1492 ib | 0.15 | |
| Lus Cim 1: Qhov nominal txoj kab uas hla, nominal cross-sectional cheeb tsam thiab siv hnyav ib meter ntawm cov hlau strand nrog zinc txheej. Lus Cim 2: Qhov ceev ntawm cov hlau strand yog 7.810g / cm3. | ||||
2) Mechanical Properties ntawm Kub-dipped Galvanized Steel Strand
Nws nominal.(mm) | Lub zog Mpa | Lub zog siab tshaj plaws F min / kN ≥ | Non-proportional Extension Force Fp0.2 / kN≥ | Relaxation Rate tom qab 1000.h (Initial load 0.7 Fm) r/%≤ |
12.7 ib | 1770 ib | 175 | 156 | 2.5 |
Xyoo 1860 | 184 | 164 | ||
Xyoo 1960 | 193 | 172 | ||
15.2 | 1770 ib | 248 | 221 | |
Xyoo 1860 | 260 | 231 | ||
Xyoo 1960 | 274 | 244 | ||
15.7 ib | 1770 ib | 266 | 237 | |
Xyoo 1860 | 279 | 248 | ||
Xyoo 1960 | 294 ib | 262 | ||
17.8 ib | 1770 ib | 338 | 301 | |
Xyoo 1860 | 355 | 316 | ||
Xyoo 1960 | 374 ib | 333 | ||
Lus Cim 1: Cov Elastic modulus ntawm kub-dipped galvanized steel strand yuav tsum yog(195±10)Gpa. | ||||
Lus Cim 2: Elongation ntawm Max.load tsis tsawg dua 3.5% (Lo≥500 hli, Act≥3.5%) | ||||
Lus Cim 3: Zinc Txheej: 190 ~ 350 (g /㎡) | ||||