產(chǎn)品詳情
就外包敷防腐層應(yīng)力開裂的形成過程而言,應(yīng)經(jīng)歷原始微裂紋生成、表面裂紋生成、防腐層整體開裂三個(gè)階段。就其力學(xué)破壞性質(zhì)而言,防腐層應(yīng)力開裂實(shí)際上是焊縫區(qū)防腐層的本體強(qiáng)度低于在該區(qū)集中的冷卻收縮殘余應(yīng)力的必然結(jié)果。2焊縫側(cè)防腐層減薄在焊接鋼管纏繞式三層PE防腐層成型過程中,由于實(shí)際存在著焊道的幾何突變,由膜口擠出的同寬度、同高度熔融塑料帶在焊道區(qū)的減薄是正常的,也是可以通過技術(shù)參數(shù)設(shè)定加以補(bǔ)償使之滿足技術(shù)標(biāo)準(zhǔn)要求的。
RIEGLER 613 338191 FWP63A22F FUS.22X58 63A EXT. (FUS-063) *
SCHNEIDER ZB6AF6
PIZZATO PX 10510-B 開關(guān)
PNEUMAX 17004BACP
NORGREN PSA/802032/W6X/STROKE
CAMOZZI 80-40-11/6PB 80-40-11/6PB GUARNIZ. AMMORT. PU -40°
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OMAL EM411L00CAB0AAMNV00BAMNA0
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NORGREN RA/8040/W/STROKE
Legrand 832479 2G BS 13A SP SWITCHED + USB
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OMAL V420H756YX
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PNEUMAX 1260250175MA
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Legrand 775893 LAMP
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SELET B03E128NCC3 接近開關(guān)
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CAMOZZI 61M2P050A0550(23) 61M2P050A0550(23) CILINDRI SERIE 61
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ABB TV8011
TEAFLEX PKG29MC PRES.MULTIF.PA6 4X6-3X8,5 PG29
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CALPEDA 42S72050000 POMPA 6SDX 28/5 AISI 304 PRED. 1 CAVO. FLANGIA MOTORE 4"
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TEAFLEX EXPRAT1616 PRES.ANTITORS.11,5-15,5 PG16
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Legrand 9704 CINTRE 90 POUR MRL 5557 AZ 32
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DATALOGIC 890001330 EXTERNAL LABEL KIT (10+10+10)
PNEUMAX 12718
PIZZATO E2 AC-DXBC2653 開關(guān)
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PIZZATO ES AC31002 開關(guān)
NORGREN 771
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PNEUMAX 13053202401A
TELWIN 806293 TE 550TRAINAFILO ARIA
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EWO E17005 安全閥
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MURR 7700-A3031-UBB1000
ABB 1SBN010145R1122
MURR 7000-40201-6140060
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NORGREN 1256427.0000.00000
AVENTICS 8551B301-228
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EWO 488.220DAM 安全閥
ABB 2CMA162828R1000
CABUR QBLOK4125 QBLOK4P125A11 MORSETT. 4P-125A-11F.
ABB 2CSK3355CH
CAMOZZI HN101-S-2C12CZ-28M-I HN101-S-2C12CZ-28M-I ELETT. PROFIBUS
NORGREN E/149100/052/DNM/STROKE
CAMOZZI 52M2P32A1771 52M2P32A1771 CILINDRI SERE 52
AVENTICS 1825503282
EWO 322-20 安全閥
PNEUMAX 13706300252
ITALWEBER 2156701 Interr. Automatico D0,5 3P+N 10Ka
SCHNEIDER A9F73232
TEAFLEX U8BSM23M25 RACC.NERO IP68 SM23 M25X1,5
BAUMER 10154707 IFRD 06N37T1/S35
UNIVER S5011253150
CAMOZZI HN106-4AS-2A-VA2B-B HN106-4AS-2A-VA2B-B E.PROFINET
AVENTICS E290C52V0KEFCV1
PALAZZOLI 488246 PRQUADINC 3P+N+T32A 380V 6H IP44
SCHNEIDER MGU10.203.858D
PNEUMAX 1320E
PNEUMAX 13024014501
ABB 1SDA077108R1
ABB ES1888MF2K
CAMOZZI 63MT2C040A0100G 63MT2C040A0100G CILINDRI S. 63 TUBO
CALPEDA 14055020000 QUADRO ELET. 3 POMPE TRI QTL/A3D12A-FA V.380-400 50/60Hz DIM.395x315x135SERIE "E"
PNEUMAX 13085010251AX
Legrand 283206 PEARLM 4G 1W 10A SWITCH
CAMOZZI HN1M-03A-3B-5CL-A HN1M-03A-3B-5CL-A ELETTROVAL.
ABB 1SDA073767R0001
CAMOZZI 354-925/33 354-925/33 LEVA SICUREZ.PED.ROSSA 1421
AVENTICS 11SAD400C000040
AVENTICS 8327B202-005
NORGREN 8027550020002400
SCHNEIDER VZ308E15BP03
MURR 7000-44721-7960750
UNIVER M1600200025M
Legrand 419744 RX3 MCB 4P C32 4500A
BAUMER 11157847 OR18W.ZI-PW1P.9VO/B013
AVENTICS 8551A309-133
CAMOZZI 50M2P63A0550 50M2P63A0550 CILINDRI SERIE 50
ABB 4TQA668372R0000
AECO FT1000112 FT18-ABE LC10 傳感器
FINDER 553390602000 繼電器
ABB 2CCS471001R1168
MURR 7700-74315-S4X2000
MURR 7000-70001-7520150
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Legrand 6632 ICTA 3422 32 ATF STANDARD 50M
SCHNEIDER 9001KP35LLL9
DATALOGIC 933-63-738 Lens, Compact Telecentric, 3X, 110mm Wor
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Legrand 420156 DPX3 160 TM+RCD 4P 125A 50KA
UNIVER RS2010400025
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CAMOZZI 24N2A25A170EX 24N2A25A170EX MINICILINDRI
ABB 1SDA063414R1
PNEUMAX 17101AB
CAMOZZI 61M2P080A0150(300)EX 61M2P080A0150(300)EX CILINDRI SERIE 61
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ABB 7TCA017300R0758
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CALPEDA 54321711000 MXVL 40-817 PRED. MOTORE 132
ABB 3299H-A0010068
EWO 651 安全閥
NORGREN PRA/802100/MX
ABB 2CPX039070R9999
PIZZATO FG 60TD1E0A 開關(guān)
ABB 1SDA058243R1
MURR 7050-40141-6250500
NORGREN F72G-KITA05
PIZZATO FR 612-M2 開關(guān)
ILME 2265845 ILTAVC 24 G32
SCHNEIDER MGU3.515.12
ABB 1SBL281001R8310
PNEUMAX SMPA111115XN
CAMOZZI 61M2P100A0100N 61M2P100A0100N CILINDRI SERIE 61
SCHNEIDER LV429931
ABB 1STQ004713B0000
ABB 2CSR272101R1324
ABB 1SFA187055R1300
PNEUMAX 132510004001
ABB 1SBN081311R1000
AVENTICS R412020659
AECO QMP000059 SMS88-P5 NO+NC H1 PR 傳感器
CAMOZZI E551/9 E551/9 VITE M3X16 UNI 8112 AUTOFORMANT
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DATALOGIC 956401080 FQ06P REFLEX POL.14-230 VAC DC
PIZZATO E2 2PL2R421L51 開關(guān)
SCHNEIDER A9F83106
SCHNEIDER NSYSQCR12060
MERSEN TS400-13 KIT 3 Term.shrd M400 1p L
ABB 1SBE111111R0611
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AVENTICS 8230307036
CABUR CAF3N2S1 TESS. MARC. CAVO D. 0,5-1,5MM2 SIM. #2#
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MP FILTRI MPH2504COSWG1A10P01 過濾器
CAMOZZI 52R2C25A0500 52R2C25A0500 CILINDRI SERE 52
TELWIN 981650 STUDDER GUN AUTOMATIC 95 L=2,5M DX95
MP FILTRI EM1BG1VP01 過濾器
TELWIN 981792 KIT MANTELLO
AVENTICS 820060311
NORGREN RA/192063/MU/50/29
NORGREN CCNA/080/50
PIZZATO FS 2196D024-F8M2 開關(guān)
SCHNEIDER ZB5AZ1015
SCHNEIDER LC1K1210D5
CABUR TR200 TR.4 MORSETTO DI TERRA
MURR 7000-88241-2300200
SCHNEIDER XSPV11801
ABB 1SAM461000R1011
TEAFLEX PKGM25MB PRES.MULTIF.PA6 2X3,2-4X5
ABB 2CKA000230A0438
SCHNEIDER VGS211F-50CS
PALAZZOLI 772134 X-CEE PR FIX DIR 3P+T 16A 110V 4H
Legrand 22237 SWIDISC COVER I 80/100A
ILME 27482 ILPE 3263 PI
ABB FPTN372726R1004
SCHNEIDER VZ4
UNIVER S5033250070
AVENTICS R481603882
ABB 1SFN154390R8706
PIZZATO NG 2D5D411U-F30 開關(guān)
PNEUMAX EMPBD11119LW
CAMOZZI 31M2A063A075N2 31M2A063A075N2 CILINDRI TANDEM SR.31
OMAL L420H776YX
SCHNEIDER KZ18635L
UNIVER W1600630020M
AVENTICS G238A044SCA3
ABB 1SDA068314R1
CAMOZZI 25N2A16A010W 25N2A16A010W MINICILINDRI
TELWIN 362036 TASCA
EAO 704.609.9/1779 Marking plate plastic translucent, D29, with symbol 1779
CAMOZZI YP1M-4M4B-C YP1M-4M4B-C ELETTROVALVOLE
ABB 1SVR450331R0100
ABB 1STQ005642B0000
UNIVER W1000500015M
PNEUMAX 158125003012
PNEUMAX 16053204002MH
ABB 1SDA071571R1
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ABB PO1660
ABB 1SDA071142R0001
CAMOZZI 63MP2C050A0800 63MP2C050A0800 CILINDRI S.63 PROFILO
FINDER 381100240060 繼電器
ABB 1SFL451001R8300
Legrand 061736LS G5LED 250LM 1H IP42 M STD
CAMOZZI 6600 6-4-S02 6600 6-4-S02 RACCORDI SUPER-RAPIDI
NORGREN PRA/802080/N2X/EX
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MP FILTRI FMM0504BAIP03 過濾器
Legrand 414629 15A 1000V CARTRIDGE FUSE GPV
MURR 7000-08041-6203000
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ABB 2CDS274337R0064
SELET OCV81/D2PNOC5 接近開關(guān)
ABB KO2261
DATALOGIC 952021360 S50-MR-5-D00-PP foc-prox pnp no-nc M12
ABB 1SFA611214R3001
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PNEUMAX 16054015001MH
ABB 2CMA100397R1000
CAMOZZI YP1M-7BC-C YP1M-7BC-C ELETTROVALVOLE
PALAZZOLI 670042 ASC 4 PRESE 16A 2/2P 2/3P IP66
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MURR 25373
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DATALOGIC ZR0DS2201 DS2200 (laser scanner) control & test
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ABB 2TLA040038R0900
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PIZZATO FD 1209-M2 開關(guān)
ABB 1SDA081177R1
CAMOZZI 388-011-02EX 388-011-02EX ELETTROVALVOLE
ABB 2CKA008300A1247
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EAO 82-10-001350 82-6151.2000.B004.pushbutton.maintained.22 mm.stainless steel.flush/flat.no LED.no colour.no LED.soldering terminal.inbation
ABB GHE3421101R0001
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NORGREN M/146163/M/780
NORGREN B84G-3GK-QP1-RFN
UNIVER W1100630005
TEAFLEX RB7536B CALOTTA CONNETTORE RB 75/36B
EAO 82-10-002709 82-6152.1113.B004.Illuminated pushbutton.momentary.22 mm.stainless steel.flush/flat.ring.red.12 V.screw terminal.inbation
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CAMOZZI 61M2P063A0320EX 61M2P063A0320EX CILINDRI SERIE 61
ABB 2CMA102342R1000
ABB 1SDA055641R0001
ABB 1SDA062294R1
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CAMOZZI 61M2P080A0270R 61M2P080A0270R CILINDRI SERIE 61
PNEUMAX SCAA1111119K
NORGREN 303612060
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SCHNEIDER LA9D3217
DATALOGIC 958601590 IS09K SENS.NAMUR D.18 N.S. M12 CONN.
AVENTICS 822125016
CAMOZZI 120-806 120-806 CONNETTORE ELETTROV. K8
ABB 1SBH137001R1431
Legrand 27126 DRX 250H 3P 175A
ABB 2CKA008300A0430
ABB SK824441-AE
ABB 2CDH783010R0802
LIKA1000000616 EC-C12F-LK-I8-2 CAVO 2MT
CAMOZZI A60-232V A60-232V OR 25X1,2 FKM VERDE GUARNIZ.
BELIMO SM24A
AVENTICS 3340180012
EWO 440 安全閥
ABB 7TCA296020R0063
DATALOGIC 606-0568-7.5 I O Cable, HD15M HD15M,7.5M (25 ft)
CAMOZZI 32M2A040A15/25N 32M2A040A15/25N CILINDRI +POSIZ. SR.32
RELECO C9-A41FX/DC14V R .
AVENTICS 822030211
SELET D03EN126AC 接近開關(guān)
ABB 2CSF202201R5400
ABB 2CSR145018R1254
ABB 1SDA074019R1
CAMOZZI 3P8-000-3BA-C2BC4M3C-U77 3P8-000-3BA-C2BC4M3C-U77 ELET. MULTIP.
NORGREN VP1006BJ401A00
CAMOZZI AL-TUBO-170X5 AL TUBO 170X160 ESTRUSO ANOD. EN-AW6060
CAMOZZI BA-52-32 BA-52-32 ANCORAGGI CILINDRI
ITALWEBER 2146515 Interr. Automatico C13 3P+N 6Ka
ABB 2CSR255140R1254
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ABB 2CDS271106R0218
ABB 7TCA296000R0529
PIZZATO FP 1802 開關(guān)
AVENTICS 7472408202
ABB 43165
Legrand HA4806AZ AXO PLAQ.RECT ALU ANOD MER 6M
Legrand HS4949 AXO OBTURATEUR 1/2M ANTH
FINDER 551380245000 繼電器
INTERNORMEN 300219 01.E 330.25VG.16.S.P.-
PIZZATO E2 3PL2P5290 開關(guān)
AVENTICS R480193196
ITALWEBER 1678400P Fus NH-2 400A 550V DC con perc per
AVENTICS A502A3000081669
ABB 2CMX100143R1000
SCHNEIDER LC1DMK02P7
EAO 704.512.008 Selector switch-actuator 2 bs silver/black mom short lever 35x35
CAMOZZI 61M2P100A0150S03 61M2P100A0150S03 CILINDRI SERIE 61
AVENTICS G553A017S3LP
EAO 96-935.8 Lens no-recess for LED grey 17,4x17,4 main plastic opaque
AVENTICS 821300386
Legrand 90467 IP66 CAT 6 FTP RJ45 SOCKET
AVENTICS 820028428
MURR 7000-08061-6240750
PIZZATO FR 754-M2 開關(guān)
EAO 600-5140-00 Lens green opaque 18x24
MP FILTRI STR0452BG1M60P01 過濾器
NORGREN 8254203.9151.02400
EAO 45-320.2F42 Illumination element base mounting amber spring-type terminal 24-240V AC/DC
MP FILTRI LMP4002BAG5A06NP01 過濾器
SCHNEIDER KTC2500ED4403
ABB EV0001
ABB 1SBH103001R8880
SCHNEIDER MTN3616-0000
PNEUMAX GT172BHN
CAMOZZI FP2RMTB-2BM-3Q-S01 FP2RMTB-2BM-3Q-S01 FCC PNEUMAT.
SELET B0482NCV6 接近開關(guān)
Legrand BT-323006 FLOOR SHUNTER
ABB 1SDA076537R1
NORGREN M/146132/MD/STROKE2
EWO E40083 安全閥
NORGREN V45A511D-C313A
FINDER 405291250001 繼電器
AVENTICS 400525-113
CAMOZZI L-41-50 L-41-50 ANCORAGGI CILINDRI
MURR 7000-40601-2200150
NORGREN F84G-6GN-QP1
Legrand 68008 ANGLE EXTERIEUR STD 130 X 50
SCHNEIDER CCT15858
PALAZZOLI 492136 PRBLSF 3P+T 16A 380V 6H IP44
MURR 7000-40581-6112000
AVENTICS R480704087
ABB 1SDA067739R0001
SELET OCV81/D3PNOR 接近開關(guān)
LIKA1000000559 CK59-Y-1000ZCZ215R 1000PPR-RAD
ABB 41219
PNEUMAX 13963201001PK
PNEUMAX RSPL0500040175
MP FILTRI DP138A003AHP01 過濾器
MURR 866882
MURR 866634
SCHNEIDER NSYECV881
PNEUMAX 13253200151
UNIVER HZRE30310
ABB 1SDA073316R1
MP FILTRI MPF1821AG12A25HBP01 過濾器
NORGREN 8550400.9404.23049
EAO 600-3140-00 Lens green opaque 18x18
SELET OCV81/DANNCM 接近開關(guān)
ITALWEBER ACC-985 Targh. Autoadesiva x Pa REVERSE
PNEUMAX 1511500275
ABB 2CMA102089R1000
SCHNEIDER LEEXSGWSB
NORGREN E/809100/20U/B17/STROKE
ABB 2CKA001754A4137
MURR 7000-58261-6170500
MP FILTRI CU900A16ANP01 過濾器
SCHNEIDER ETK10120E
NORGREN PRA/182040/L4/600
SCHNEIDER LC2K090045E7
NORGREN E/809080/20M/DNB/STROKE
ITALWEBER TTE-F3341 TERMINALE 12KV TRIP. X ESTERNO
Laumas OPZW1PNETIOCR
MP FILTRI LMP1104BAB2A10NP01 過濾器
SCHNEIDER XMLDL35S1S13
AECO SIP000102 SIP40-C15 PNP NO+NC 傳感器
EWO 488.331DASV 安全閥
ABB 1SAH220397R9900
AVENTICS 822395501
ABB 1SBL241501R8900
NORGREN 1811710000000000
ABB 1SBL371022R8811
CAMOZZI 31F2A020A160 31F2A020A160 CILINDRI COMPATTI SERIE 31
ABB 7TAA292360R0000
AVENTICS 8327B001-282
CAMOZZI 9412 12-M16X1,5N NEW 9412 12-M16X1,5N "C-TRUCK"
Legrand 410099 DX3 2P B20 50KA
AVENTICS G651APBP2P104HN
MURR 7000-88025-2300100
MURR 7000-40341-2141000
EWO 488 安全閥
ABB 1SVR405613R3110
MURR 7700-A3A11-UMB2000
AVENTICS E262K110S1V00H1
MURR 7000-40021-2540150
PIZZATO FR 602-X 開關(guān)
CAMOZZI 45NHT050A0060S01 45NHT050A0060S01 GUIDE ANTIROTAZIONE
AVENTICS R480042290
AVENTICS E320A184-022
SCHNEIDER NSYSFXJG
ABB 1SDA066126R1
MURR 7000-18141-6183000
ABB 1SDA067672R1
UNIVER HGO211000
AVENTICS 8327A649-015
MP FILTRI MPF4002AG8A10HBP01 過濾器
MURR 342270
EAO 04L00601 Indicator-Set D35, lens blue D35 plastic
ABB M008100000
ITALWEBER BQA4.8-5 Innesto Fem CONC. ROSSO 4.8x0.5
DATALOGIC 93ACC1743 DNT-9500 DEVICE-NET INT. MODULE DC9500
AVENTICS 822067103
MP FILTRI FHP0652BAG6P01 過濾器
MURR 7000-18081-2360100
ILME 783415 ILA3M 2320.09
PIZZATO VE TR4A91GB10 開關(guān)
CAMOZZI 320-041-VS 320-041-VS RACCORDI SUPER-RAPIDI
MURR 7000-44621-7960700
ABB 1SCA105296R1001 CAMOZZI 40M2L160D1250 40M2L160D1250 CILINDRI SERIE 40
EAO 911F.700-W0
EAO 270F1000-00-L 山東中發(fā)DEUBLIN 55-904-003920 鎖緊裝置技術(shù)參數(shù)
因此焊縫側(cè)防腐層分層只會(huì)有三種情況:一是碾壓輥的缺陷影響;二是內(nèi)應(yīng)力的影響;三是溫度的影響。1碾壓輥的缺陷影響碾壓輥硬度較大,雖然壓輥整體支撐裝置回彈力足以消除壓輥形變對(duì)焊縫防腐層的碾壓影響,減少了應(yīng)力開裂,但由于壓輥形變小,焊縫兩側(cè)的防腐層未受到足夠的形變產(chǎn)生的碾壓力,造成聚乙烯與聚乙烯層以及聚乙烯與中間粘結(jié)劑層粘結(jié)壓力不足,造成分層情況的出現(xiàn)。2應(yīng)力的影響焊縫夾角不同引起應(yīng)力集中。