Yas coated sab hauv thiab sab nraud cov yeeb nkab sib xyaw
Yas coated sab hauv thiab sab nraud cov yeeb nkab, Sab hauv thiab sab nrauv coated yas composite yeeb nkab yog ib hom steel yas puas yeeb nkab muaj li ntawm ib txheej ntawm 0.5 ~ 1.0 hli polyethylene (PE) resin, ethylene-acrylic acid copolymer (EAA), epoxy ( EP) hmoov, non-toxic polypropylene (PP) los yog non-toxic polyvinyl chloride (PVC) thiab lwm yam organic teeb meem yaj nyob rau hauv lub puab phab ntsa ntawm cov yeeb nkab.
Yas coated sab hauv thiab sab nraud cov yeeb nkab sib xyaw, Nws tsis tsuas yog muaj qhov zoo ntawm lub zog siab steel yeeb nkab, kev sib txuas yooj yim, dej cuam tshuam, tab sis kuj kov yeej cov yeeb nkab steel dej corrosion, muaj kuab paug, scaling thiab yas yeeb nkab lub zog tsis siab, kev ua haujlwm tsis zoo. thiab lwm yam shortcomings, tsim lub neej mus txog 50 xyoo.Lub ntsiab tsis zoo yog tias lub installation yuav tsum tsis txhob khoov, kub ua hauj lwm thiab vuam thiab txiav, txiav nto daim ntawv thov manufacturers nruab nrog uas tsis yog-tshuaj lom kub curing nplaum txheej.Cov ntsiab lus tseem ceeb yog φ15 - φ100.
Yas coated sab hauv thiab sab nraud cov yeeb nkab, Cov qauv tseem ceeb tau muab faib ua:GS - - X - SP - T - EP, GS - - SP - T - EP, GS - - D - SP - T - EP (PE)
Yas Coated Sab Hauv Thiab Sab Nraud Composite Pipe, Standard
Cov yeeb nkab steel nrog kev siv rau lub teb chaws tus qauv: GB / T3091-2001;Kev lag luam tus qauv ntawm cov yas-coated composite steel yeeb nkab: CJ / T120-2008;Kev lag luam tus qauv ntawm cov yas lined composite steel yeeb nkab: CJ / T136-2007;Thermal conductivity: 65 W / (mK);Linear expansion coefficient: 65 1 / K;Hlau-yas Composite yeeb nkab: GB / T 28897-2012;
Yas Coated Sab Hauv Thiab Sab Nraud Composite Yeeb Nkab, Khoom Zoo
Nrog rau siab mechanical zog, haum rau hnyav ib puag ncig;
Cov txheej sab hauv thiab txheej txheej tuaj yeem tiv thaiv cov hlau oxidation thiab muaj cov tshuaj tiv thaiv corrosion zoo.
Cov txheej muaj zog adhesion, siab sib txuas lub zog thiab zoo cuam tshuam tsis kam.
Tsawg roughness coefficient thiab kev sib txhuam coefficient, zoo heev tsis kam rau txawv teb chaws lub cev adhesion;
Los tiv thaiv kev laus, lub neej ua haujlwm ntev, tshwj xeeb tshaj yog tsim rau kev xa dej faus.
Yas Coated Sab Hauv Thiab Sab Nraud Composite Yeeb Nkab, Kev Tshuaj Ntsuam Xyuas
Kev tshuaj xyuas qhov muag
Saib xyuas qhov zoo ntawm cov yeeb nkab steel coated, thiab cov txiaj ntsig kev xeem yuav tsum ua raws li cov kev cai ntawm 5.1.
Kev ntsuas thickness
Ob ntu ntawm qhov sib txawv ntawm qhov ntev yog coj los ntawm ob qho kawg ntawm cov yeeb nkab steel coated.Hauv txhua ntu ntu, txheej txheej thickness ntawm plaub lub ntsiab lus ncaj qha cuam tshuam qhov ncig yog ntsuas nrog electromagnetic thickness gauge.Cov txiaj ntsig kev xeem yuav tsum ua raws li cov cai ntawm 5.4.
Pinhole xeem
Qhov ntev ntawm cov yeeb nkab seem qauv yog hais txog 1000 mm.Cov txheej txheem ntawm lub raj steel yog tshuaj xyuas los ntawm lub txim hluav taws xob hauv qab qhov ntsuas qhov ntsuas hluav taws xob.Cov txheej tuab yog tsawg dua 0.4 hli, qhov ntsuas hluav taws xob yog 1500 V, txheej txheej thickness yog ntau tshaj 0.4 hli, thiab qhov ntsuas hluav taws xob yog 2000 V. Tshawb xyuas seb cov hluav taws xob hluav taws xob puas tsim los thiab cov txiaj ntsig yuav tsum ua raws li 5.5.
Adhesion xeem
Kev kuaj adhesion yuav tsum tau ua raws li 7.4.2 ntawm CJ / T 120-2008, thiab cov txiaj ntsig kev xeem yuav tsum ua raws li 5.6.
Khoov xeem
Khoov xeem rau coated steel yeeb nkab DN≤50mm.Qhov ntev ntawm cov yeeb nkab seem qauv yog (1200 ± 100) mm.
Ntawm qhov kub ntawm (20 ± 5) ℃, 8 zaug ntawm lub nominal txoj kab uas hla ntawm cov yeeb nkab steel raws li lub vojvoog ntawm curvature, dabtsi yog khoov Lub kaum sab xis ntawm 30O, khoov ntawm cov yeeb nkab bender lossis tuag.Thaum kev sim khoov, tsis muaj qhov muab tso rau hauv lub raj, thiab cov vuam yog nyob rau ntawm sab ntawm lub ntsiab bending nto.
Tom qab qhov kev xeem, txiav cov qauv ntawm nruab nrab ntawm lub nkhaus arc los xyuas cov txheej txheem sab hauv, thiab cov txiaj ntsig kev xeem yuav tsum ua raws li cov cai ntawm 5.7.
Kev ntsuam xyuas
DN> 50 hli coated steel raj yuav tsum tau compressed.Qhov ntev ntawm cov yeeb nkab seem qauv yog (50 ± 10) mm.
Cov qauv tau muab tso rau nruab nrab ntawm ob daim hlau ntawm qhov kub ntawm (20 ± 5) ℃, thiab tau maj mam muab tso rau ntawm lub tshuab ntsuas siab kom txog rau thaum qhov kev ncua deb ntawm ob daim hlau yog plaub feem tsib ntawm cov kab npoo sab nraud ntawm cov qauv.Lub welded seam ntawm coated steel yeeb nkab yog perpendicular mus rau cov kev taw qhia ntawm load daim ntawv thov.Tom qab kev xeem, cov txheej txheej sab hauv yuav tsum tau kuaj xyuas thiab cov txiaj ntsig kev xeem yuav tsum ua raws li 5.8.
Impact test
Ib qho piv txwv txog 100 hli ntev raug txiav los ntawm txhua txoj hauj lwm ntawm cov yeeb nkab steel coated, thiab qhov kev ntsuam xyuas cuam tshuam tau ua raws li cov kev cai hauv Table 2 ntawm qhov kub ntawm (20 ± 5) ℃ los soj ntsuam kev puas tsuaj ntawm cov txheej sab hauv. .Thaum lub sij hawm kev xeem, lub vuam yuav tsum nyob rau hauv lub opposite kev taw qhia ntawm qhov cuam tshuam nto, thiab qhov kev ntsuam xyuas yuav tsum ua raws li cov kev cai ntawm 5.9.
Table 2 Impact test conditions
Nominal txoj kab uas hla DN
mm rauj hnyav, kg poob qhov siab, mm
15-251.0300 Nws
32-502.1500 Nws
80 ~ 3006.31000
Impact test apparatus
Nqus kuaj
Qhov ntev ntawm cov yeeb nkab seem qauv yog (500 ± 50) mm.Siv cov kev ntsuas tsim nyog los thaiv qhov nkag thiab qhov hluav taws xob ntawm cov yeeb nkab, thiab maj mam nce qhov tsis zoo ntawm qhov nkag mus rau 660 mm hg, khaws cia rau 1 min.Tom qab qhov kev xeem, xyuas cov txheej sab hauv, thiab cov txiaj ntsig kev xeem yuav tsum ua raws li cov cai ntawm 5.10.
Kub ntsuas kub
Qhov ntev ntawm cov yeeb nkab seem qauv yog (100 ± 10) mm.Cov qauv tau muab tso rau hauv qhov cub thiab rhaub rau (300 ± 5) ℃ rau 1 h.Tom qab ntawd nws tau muab tshem tawm thiab txias ib txwm mus rau qhov kub thiab txias.Tom qab qhov kev xeem, tshem tawm cov qauv thiab xyuas cov txheej txheem sab hauv (tso thiab tsaus dua qhov pom tau pom), thiab cov txiaj ntsig kev xeem yuav tsum ua raws li 5.11.
Kev ntsuas kub tsawg
Cov yeeb nkab seem piv txwv yog (100 ± 10) mm qhov loj thiab ntev.Cov hnoos qeev tau muab tso rau hauv ib lub chamber cryogenic, txias rau (-30 ± 2) ℃ thiab khaws cia ntawm qhov kub thiab txias rau 1 teev.Tom qab ntawd nws raug tshem tawm thiab muab tso rau ntawm qhov kub ntawm (20 ± 5) ℃ rau (4-7) h.Thaum kawg ntawm lub sijhawm xeem, cov qauv yuav tsum tau muab coj los kuaj xyuas cov txheej txheej sab hauv, thiab kev xeem adhesion yuav tsum tau ua raws li cov cai ntawm 6.4, thiab cov txiaj ntsig kev xeem yuav tsum ua raws li cov cai ntawm 5.12.
Kev ntsuas lub voj voog siab
Qhov ntev ntawm cov yeeb nkab seem qauv yog (500 ± 50) mm.Kev ntsuas tsim nyog tau siv los thaiv qhov nkag thiab qhov hluav taws xob ntawm cov yeeb nkab, thiab cov yeeb nkab tau txuas nrog cov kav dej.Cov dej tau ntim kom tshem tawm cov huab cua, thiab tom qab ntawd 3000 alternating hydrostatic tests los ntawm (0.4 ± 0.1) MPa rau MPa tau ua, thiab lub sijhawm ntawm txhua qhov kev xeem tsis ntau tshaj 2 s.Tom qab qhov kev xeem, cov txheej txheej sab hauv yuav tsum tau kuaj xyuas thiab kev kuaj adhesion yuav tsum tau ua raws li cov cai ntawm 6.4, thiab cov txiaj ntsig kev xeem yuav tsum ua raws li cov cai ntawm 5.13.
Kev ntsuas kub ntsuas
Qhov ntev ntawm cov yeeb nkab seem qauv yog (500 ± 50) mm.Cov qauv tau muab tso rau 24 teev ntawm txhua qhov ntsuas kub hauv qab no:
(50 ± 2) ℃;
(-10 ± 2) ℃;
(50 ± 2) ℃;
(-10 ± 2) ℃;
(50 ± 2) ℃;
(-10 ± 2) ℃.
Tom qab kev sim, cov qauv tau muab tso rau hauv ib puag ncig nrog qhov kub ntawm (20 ± 5) ℃ rau 24 teev.Cov txheej txheej sab hauv raug kuaj xyuas thiab kev kuaj adhesion tau ua raws li cov kev cai ntawm 6.4.Cov txiaj ntsig kev xeem yuav tsum ua raws li cov cai ntawm 5.14.
Sov dej aging test
Qhov loj thiab ntev ntawm cov yeeb nkab seem qauv yog hais txog 100 mm.Qhov chaw raug ntawm ob qho kawg ntawm cov yeeb nkab seem yuav tsum tau kho nrog anticorrosion.Cov kav dej yuav tsum tau muab tso rau hauv dej distilled ntawm (70 ± 2) ℃ rau 30 hnub.
Specification
| Yam khoom | Yas coated sab hauv thiab sab nraud cov yeeb nkab sib xyaw |
| Khoom siv | SPHC, Q195, Q215, Q235, Q345, SAE1010, SAE1020, API Standard khoom, ASTM A53 A, B |
| OD | 10-1219 (1/8 ''-48 '') |
| WT | 0.7-13 |
| Ntev | 2m-12m lossis raws li cov neeg siv khoom xav tau |
| Thickness kam rau ua | + 5% - |
| Nto | oiled / pleev xim rau |
| Cov yeeb nkab kawg | Plain kawg / Beveled kawg / Xov nrog coupling thiab cap |
| Kos npe | Raws li tus neeg siv khoom xav tau |
| Sdandar | ASTM / BS EN / DIN / GB |
| Daim ntawv pov thawj | ISO, BV, API |
| ODM / OEM | muaj |
| Cov qauv | ASTM A53, BS1387-1985, GB / T3091-2001, GB / T13793-92, GB / T6728-2002 |
| Khoom siv | Q195, Q215, Q235, Q345 |
| Cov txheej txheem | Welded |
| Kev siv | Mechanical & manufacture, Steel qauv, Shipbuilding, Bridging, Tsheb chassis |
Cov ntsiab lus ntawm Cov Khoom Siv
| Qib | C | Mn | Si | S | P | UTS (MPa) | YS (MPa) | EI (%) |
| q235 ib | 0.12-0.20 Nws | 0.30-0.70 Nws | 0.30 Nws | 0.045 ib | 0.045 ib | 375-500 : kuv | 235 | 26 |
| q345 ib | 0.12-0.20 Nws | 1.20-1.60 Nws | 0.20-0.55 Nws | ≤ 0.045 | ≤ 0.045 | 510-600 Nws | 345 | 22 |
| 20 # (GB) | 0.17-0.23 dr hab | 0.38-0.65 Nws | 0.17-0.37 Nws | ≤ 0.030 | ≤ 0.030 | 410-550 : kuv | ≥245 | ≥ 20 |
| HDPE PIPE SIZES CHART | |||||||||
| Dia | Deviation | 0.4Mpa | 0.5 Mpa | 0.6 Mpa | 0.8 Mpa | 1.0 Mpa | 1.25 Mpa | 1.6MPa | 2.0 Mpa |
| Thickness | Thickness | Thickness | Thickness | Thickness | Thickness | Thickness | Thickness | ||
| mm | mm | mm | mm | mm | mm | mm | mm | mm | mm |
| 16 | 0.3 | 2.3 | |||||||
| 20 | 0.3 | 2.3 | 2.3 | ||||||
| 25 | 0.3 | 2.3 | 2.3 | 3 | |||||
| 32 | 0.3 | 2.3 | 2.4 | 3 | 3.6 | ||||
| 40 | 0.4 | 2.3 | 2.4 | 3 | 3.7 | 4.5 | |||
| 50 | 0.4 | 2.3 | 2.4 | 3 | 3.7 | 4.6 | 5.6 | ||
| 63 | 0.4 | 2.5 | 3 | 3.8 | 4.7 | 5.8 | 7.1 | ||
| 75 | 0.5 | 2.9 | 3.6 | 4.5 | 5.6 | 6.8 | 8.4 | ||
| 90 | 0.6 | 3.5 | 4.3 | 5.4 | 6.7 | 8.2 | 10.1 | ||
| 110 | 0.7 ua | 4.2 | 5.3 | 6.6 | 8.1 | 10 | 12.3 | ||
| 125 | 0.8 ua | 4.8 | 6 | 7.4 ib | 9.2 ib | 11.4 | 14 | ||
| 140 | 0.9 | 5.4 | 6.7 | 8.3 | 10.3 | 12.7 ib | 15.7 ib | ||
| 160 | 1 | 6.2 | 7.7 | 9.5 ib | 11.8 ib | 14.6 ib | 17.9 ib | ||
| 180 | 1.1 | 6.9 | 8.6 | 10.7 ib | 13.3 | 16.4 ib | 20.1 | ||
| 200 | 1.2 | 7.7 | 9.6 ib | 11.9 ib | 14.7 ib | 18.2 ib | 22.4 ib | ||
| 225 | 1.4 | 8.6 | 10.8 | 13.4 | 16.6 | 16.6 | 25.2 ib | ||
| 250 | 1.5 | 9.6 ib | 11.9 ib | 14.8 ib | 18.4 ib | 22.7 ib | 27.9 ib | ||
| 280 | 1.7 | 10.7 ib | 13.4 | 16.6 | 20.6 | 25.4 ib | 31.3 | ||
| 315 | 1.9 | 7.7 | 9.7 ib | 12.1 | 15 | 18.7 ib | 23.2 | 28.6 ib | 35.2 ib |
| 355 | 2.2 | 8.7 ib | 10.9 | 13.6 | 16.9 ib | 21.1 | 26.1 ib | 32.2 ib | 39.7 ib |
| 400 | 2.4 | 9.8 ib | 12.3 | 15.3 | 19.1 ib | 23.7 ib | 29.4 ib | 36.3 ib | 44.7 ib |
| 450 | 2.7 | 11 | 13.8 ib | 17.2 ib | 21.5 ib | 26.7 ib | 33.1 | 40.9 ua | 50.3 |
| 500 | 3 | 12.3 | 15.3 | 19.1 ib | 23.9 Nws | 29.7 ib | 36.8 ib | 45.4 ib | 55.8 ua |
| 560 | 3.4 | 13.7 ib | 17.2 ib | 21.4 ib | 26.7 ib | 33.2 ib | 41.2 ib | 50.8 ib | 62.5 ib |
| 630 | 3.8 | 15.4 ib | 19.3 ib | 24.1 | 30 | 37.4 ib | 46.3 ib | 57.2 ib | 70.3 ib |
| 7 10 | 6.4 | 17.4 ib | 21.8 ib | 27.2 ib | 33.9 ib | 42.1 ib | 52.2 ib | 64.5 ib | 79.3 ib |
| 800 | 7.2 | 19.6 ib | 24.5 ib | 30.6 ib | 38.1 ib | 47.4 ib | 58.8 ua | 72.6 ib | 89.3 ib |
| 900 | 8.1 | 22 | 27.6 ib | 34.4 ib | 42.9 ib | 5 3.3 | 66.2 ib | 81.7 ib | |
| 1000 | 9 | 24.5 ib | 30.6 ib | 38.2 ib | 47.7 ib | 59.3 ib | 72.5 ib | 90.2 ib | |
Khoom Qhia
