Fireproof coated yas PIPE API roj kab yog me ntsis seamless
Hluav taws kub coated yas yeeb nkab, Nrog ncaj los yog seamless steel raj raws li lub hauv paus yeeb nkab, sab nrauv phab ntsa yog coated nrog thermosetting hmoov txheej nrog siab adhesion, cuam tshuam tsis kam, corrosion kuj thiab huab cua tsis kam, thiab sab hauv phab ntsa yog coated nrog thermoplastic hmoov txheej nrog siab. adhesion, corrosion kuj thiab zaub mov huv.
Siv cov tshuaj sandblasting ob chav pretreatment, preheating, puab txheej, txheej txheej, kho, tom qab kev kho mob thiab lwm yam txheej txheem, ua los ntawm cov dej muab yas coated composite steel yeeb nkab, yog cov tsoos steel yas yeeb nkab, galvanized yeeb nkab upgrade hom ntawm cov khoom siv tau zoo.Cov khoom siv los ntawm lub teb chaws cov khoom siv tshuaj hauv tsev kuaj qhov chaw tua hluav taws kev tshaj lij.
Cov teeb meem corrosion thiab scaling ntawm cov kav hlau hauv cov txheej txheem ntawm faus thiab thauj dej tau daws los ntawm kev siv cov txheej txheem yas rau cov kav hlau lossis cov kav dej galvanized.Qhov tshwm sim ntawm cov yeeb nkab thaiv thiab cov tshuaj tsuag thaiv tau raug tshem tawm, thiab kev pab cuam lub neej ntawm cov yeeb nkab yog txhim kho.Lub neej kev pab cuam ntawm coated steel yeeb nkab yog ntau tshaj 50 xyoo.Cov hmoov txheej ntawm cov yas steel raj ntxiv nplaim hluav taws thiab hloov kho epoxy resin hmoov, qhov kub tsis kam ntawm txheej yog superior, thiab tsis hlawv los yog muag muag nyob rau hauv lub sij hawm ntev.Coated yas steel yeeb nkab muaj ob qho tib si lub zog siab ntawm cov yeeb nkab steel zoo tib yam thiab cov khoom tiv thaiv corrosion ntawm cov khoom roj roj.Kev ua haujlwm compressive ntawm cov khoom ncav cuag 0-5.0mpa.
Hluav Taws Coated Yas Yeeb Nkab, Pipeline Interface
Xov txuas rau: DN15-DN100
Groove kev twb kev txuas rau: DN65-DN400;
Bimetal welding txuas rau: DN100-DN800
Flange kev twb kev txuas yog haum rau: haum rau tej caliber;
Vuam txuas yog tsim rau: haum rau txhua txoj kab uas hla;
Hluav taws kub coated yas yeeb nkab, Kev siv qhov kub thiab txias
0 ~ 110 degrees siv tau ntev.
Hluav taws kub coated yas yeeb nkab, txheej thickness
Ntawm 100 microns thiab 500 microns, feem ntau 350 microns.
Hluav taws kub coated yas yeeb nkab, khoom nta
1. Kev noj qab haus huv tsis muaj tshuaj lom, tsis muaj qhov scaling, tsis muaj kev yug me nyuam ntawm cov kab mob, ua kom cov kua dej zoo
2. Resistant tshuaj corrosion, av thiab Marine kab mob, cathodic stripping
3. Cov txheej txheem installation yog paub tab, yooj yim thiab ceev, thiab kev sib txuas nrog cov yeeb nkab galvanized zoo tib yam
4. Cov huab cua tsis zoo, haum rau ib puag ncig hnyav xws li suab puam, ntsev thiab alkali
5. Smooth yeeb nkab phab ntsa, txhim kho conveying efficiency, ntev kev pab cuam lub neej
Hluav Taws Coated Yas Yeeb Nkab, Kev Tshawb Fawb Txog Kev Tshawb Fawb
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.
Ntawm qhov kub ntawm (20 ± 5) ℃, cov qauv tau muab tso rau nruab nrab ntawm ob daim hlau thiab compressed maj mam ntawm lub tshuab ntsuas siab kom txog rau thaum qhov kev ncua deb ntawm ob daim hlau yog plaub feem tsib ntawm cov kab uas hla sab nraud.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
| Hluav taws kub coated yas yeeb nkab | |||||
| OD (mm) | WT (mm) | OD (mm) | WT (mm) | OD (mm) | WT (mm) |
| 219 | 4-8 | 558.8 ib | 4–12 | 914.4 ib | 8–16 |
| 273 | 4-8 | 609.6 ib | 4–12 | 965.2 ib | 8–16 |
| 325 | 4-8 | 630 | 4–12 | 1020 | 8–16 |
| 377 ib | 4-8 | 711.2 ib | 4–13 | 1220 | 8–16 |
| 406 | 4–12 | 7 20 | 8–13 | 1420 | 8-20 |
| 426 | 4–12 | 762 ib | 8–14 | 1620 | 8-20 |
| 478 ib | 4–12 | 812.8 ib | 8–14 | 1820 | 8-20 |
| 508 | 4–12 | 863 ua | 8–14 | 2020 | 8-20 |
Khoom Qhia
