Cov kev cai dav dav
Qhov txoj kab uas hla ntawm CHUANGRONG PE kav yog li ntawm 20 hli mus rau 1600 hli, thiab muaj ntau hom thiab hom fittings muaj rau cov neeg siv khoom xaiv. PE kav lossis fittings yog sib koom ua ke los ntawm kev sib xyaw ua ke los yog nrog cov khoom siv kho tshuab.
PE yeeb nkab kuj tuaj yeem koom nrog rau lwm cov khoom siv yeeb nkab los ntawm kev sib txuas fittings, flanges, lossis lwm yam tsim nyog ntawm cov khoom siv hloov pauv.
Txhua qhov kev thov muaj qhov tshwj xeeb zoo thiab cov kev txwv rau txhua qhov kev koom ua ke uas tus neeg siv yuav ntsib. Kev sib cuag nrog ntau tus neeg tsim khoom yog pom zoo rau kev taw qhia hauv cov ntawv thov kom raug thiab cov qauv muaj rau kev koom ua ke raws li tau piav qhia hauv daim ntawv no.
Txoj kev sib txuas
Muaj ob peb hom kev sib koom ua ke ntawm cov pa hluav taws xob sib txuas tam sim no siv hauv kev lag luam: Butt, Saddle, thiab Socket Fusion. Tsis tas li ntawd, electrofusion (EF) kev sib koom ua ke muaj nrog tshwj xeeb EF couplers thiab eeb fittings.
Lub hauv paus ntsiab lus ntawm cov cua sov fusion yog kom sov ob qhov chaw rau qhov kub thiab txias, ces fuse lawv ua ke los ntawm kev siv lub zog txaus. Lub zog no ua rau cov ntaub ntawv melted ntws thiab sib tov, yog li ua rau fusion. Thaum fused raws li cov yeeb nkab thiab / los yog haum cov tuam txhab cov txheej txheem, qhov sib koom ua ke ua kom muaj zog los yog muaj zog dua, cov yeeb nkab nws tus kheej nyob rau hauv ob qho tib si tensile thiab siab zog thiab fused pob qij txha yog cov pov thawj kiag li. Sai li qhov sib koom ua ke txias kom ze rau qhov kub thiab txias, nws npaj txhij rau kev tuav.Cov ntu hauv qab no ntawm tshooj no muab cov txheej txheem txheej txheem dav dav rau txhua txoj kev sib txuas.
Butt fusion Steps
1. Cov kav dej yuav tsum tau muab tso rau hauv lub tshuab vuam, thiab qhov kawg tau ntxuav nrog cov dej cawv tsis tso tawm kom tshem tawm tag nrho cov av, plua plav, noo noo, thiab cov greasy films los ntawm ib cheeb tsam kwv yees li 70 hli los ntawm qhov kawg ntawm txhua cov yeeb nkab, ntawm ob sab hauv thiab sab nraud txoj kab uas hla.
2.Qhov kawg ntawm cov kav dej yog trimmed siv ib tug rotating cutter kom tshem tawm tag nrho cov ntxhib xaus thiab oxidation txheej. Lub ntsej muag trimmed kawg yuav tsum yog square thiab parallel.
3. Qhov kawg ntawm cov kav dej PE yog cua sov los ntawm kev sib txuas hauv qab siab (P1) tawm tsam lub phaj rhaub. Cov phaj rhaub yuav tsum huv thiab tsis muaj kab mob, thiab khaws cia nyob rau hauv qhov kub thiab txias (210 ± 5 ℃ C rau PE80, 225 ± 5 C rau PE100). Kev sib txuas yog khaws cia kom txog thaum cov cua kub tau tsim nyob ib ncig ntawm cov yeeb nkab kawg, thiab qhov kev sib txuas siab ces txo qis rau tus nqi P2 (P2 = Pd). Kev sib txuas yog tom qab ntawd tswj kom txog thaum "Heat-absorption Step" tas.
Buttfusion
Butt fusion yog txoj kev siv dav tshaj plaws rau kev koom nrog ib tus neeg ntev ntawm PE kav thiab cov kav dej rau PE fittings, uas yog los ntawm tshav kub fusion ntawm cov yeeb nkab taub qab xaus raws li qhia hauv daim duab. Cov txheej txheem no ua rau muaj kev sib txuas mus tas li, kev lag luam thiab kev ua haujlwm zoo. High-zoo pob tw fusion pob qij txha yog tsim los ntawm cov neeg ua haujlwm cob qhia hauv qhov xwm txheej zoo.
Butt fusion feem ntau yog siv rau cov kav dej PE hauv qhov loj ntawm 63 mm txog 1600 mm rau cov pob qij txha ntawm cov kav dej, fittings thiab kev kho mob kawg. Butt fusion muab ib homogeneous sib koom ua ke nrog tib yam khoom raws li cov yeeb nkab thiab fittings cov ntaub ntawv, thiab muaj peev xwm tiv taus ntev loads.
4. Cov yeeb nkab uas muaj cua sov kawg yog tom qab ntawd thim rov qab thiab lub rhaub lub phaj tshem tawm sai li sai tau (t3: tsis muaj kev sib cuag siab).
5. Cov yeeb nkab PE rhuab kawg yog tom qab ntawd coj los ua ke thiab sib npaug sib npaug rau qhov vuam siab tus nqi (P4 = P1).Qhov kev siab no yog tom qab ntawd khaws cia rau ib lub sijhawm kom cov txheej txheem vuam tuaj yeem tshwm sim, thiab cov fused sib koom ua kom txias mus rau qhov kub thiab txias thiab ua kom muaj zog sib koom ua ke.(t4 + t5). Thaum lub sij hawm txias no cov pob qij txha yuav tsum nyob twj ywm undisturbed thiab nyob rau hauv compression. Nyob rau hauv tsis muaj xwm txheej yuav tsum tau cov pob qij txha yuav tsum tau txau nrog dej txias.Qhov kev sib txuas ntawm lub sij hawm, qhov kub thiab txias yuav tsum tau txais yuav nyob ntawm seb PE cov ntaub ntawv qib, txoj kab uas hla thiab phab ntsa thickness ntawm cov kav dej, thiab hom thiab qauv ntawm fusion tshuab siv. CHUANGRONG engineers tuaj yeem muab kev taw qhia hauv cov ntsuas cais, uas tau teev nyob rau hauv cov ntaub ntawv hauv qab no:
| SDR | SIZE | Pw | eaw* | t2 | t3 | t4 | P4 | t5 |
| SDR 17 | (mm) | (MPa) | (mm) | (s) | (s) | (s) | (MPa) | (min) |
| D110 * 6.6 | 321/S2 1.0 | 66 6 6 321/S2 9 | ||||||
| D125 * 7.4 | 410/S2 | 1.5 | 74 | 6 | 6 | 410/S2 | 12 | |
| D160 * 9.5 | 673/2 SWB | 1.5 | 95 | 7 | 7 673/S2 | 13 | ||
| D200 * 11.9 | 1054/S2 | 1.5 | 119 | 8 | 8 | 1054/S2 | 16 | |
| D225 * 13.4 1335 / S2 | 2.0 | 134 | 8 | 8 1335/S2 | 18 | |||
| D250 * 14.8 | 1640/S2 | 2.0 | 148 | 9 | 9 | 1640/S2 | 19 | |
| D315 * 18.7 2610 / S2 | 2.0 | 187 | 10 | 10 | 2610/S2 24 | |||
| SDR 13.6 | D110 * 8.1 | 389/S2 | 1.5 | 81 | 6 | 6 | 389/S2 | 11 |
| D125 * 9.2 502 / S2 | 1.5 | 92 | 7 | 7 502/S2 | 13 | |||
| D160 * 11.8 | 824/S2 | 1.5 | 118 | 8 | 8 | 824/S2 | 16 | |
| D200 * 14.7 1283 / S2 | 2.0 | 147 | 9 | 9 | 1283/S2 19 | |||
| D225 * 16.6 | 1629/S2 | 2.0 | 166 | 9 | 10 | 1629/S2 | 21 | |
| D250*18.4 2007/S2 | 2.0 | 184 | 10 | 11 | 2007/S2 | 23 | ||
| D315 * 23.2 | 3189/S2 | 2.5 | 232 | 11 | 13 | 3189/S2 | 29 | |
| SDR 11 | D110 * 10 | 471/S2 | 1.5 | 100 | 7 7 | 471/S2 | 14 | |
| D125 * 11.4 | 610/S2 | 1.5 | 114 | 8 | 8 | 610/S2 | 15 | |
| D160 * 14.6 1000 / S2 | 2.0 | 146 | 9 9 | 1000/S2 | 19 | |||
| D200 * 18.2 | 1558/S2 | 2.0 | 182 | 10 | 11 | 1558/S2 | 23 | |
| D225 * 20.5 1975 / S2 | 2.5 | 205 | 11 | 12 | Xyoo 1975/S2 | 26 | ||
| D250 * 22.7 | 2430/S2 | 2.5 | 227 | 11 | 13 | 2430/S2 | 28 | |
| D315 * 28.6 3858 / S2 | 3.0 286 13 15 3858/S2 35 | |||||||
ew * yog qhov siab ntawm cov hlaws vuam ntawm qhov sib txuas fusion.
Qhov kawg weld hlaws yuav tsum tau dov tag nrho, tsis muaj pitting thiab voids, raug qhov loj me, thiab tsis muaj xim. Thaum ua tau zoo, qhov tsawg kawg lub sij hawm lub zog ntawm lub pob tw fusion sib koom yuav tsum yog 90% ntawm lub zog ntawm niam txiv PE yeeb nkab.
Qhov tsis sib xws ntawm kev sib txuas vuam yuav tsum ua rawsrau qhov xav tau hauv daim duab:
B = 0.35∼0.45en
H=0.2∼0.25en
h=0.1∼0.2en
Nco tseg: Ua raws li cov txiaj ntsig fusion yuav tsum bezam:
Tshaj-welding: vuam rings yog dav dhau.
Lub cev tsis muaj zog pob tw fusion: ob lub kav dej tsis sib haum.
Qhuav-vuam: vuam rings yog nqaim heev, feem ntau yog vim tsis kub los yog tsis txaus siab.
Tsis tiav curling: vuam kub yog tsawg dhau.
Qhov (socket) Fusion
Rau PE kav thiab fittings uas muaj me me diameters (los ntawm 20mm mus rau 63mm), qhov (socket) fusion yog ib hom kev yooj yim. Cov txheej txheem no muaj cov cua kub ib txhij rau ob qho tib si sab nraud ntawm cov yeeb nkab kawg thiab sab hauv ntawm lub qhov (socket) haum kom txog rau thaum cov khoom mus txog qhov kev qhuas fusion kub, tshuaj xyuas cov qauv yaj, ntxig lub qhov kawg rau hauv lub qhov (socket), thiab tuav nws nyob rau hauv qhov chaw kom txog thaum lub qhov sib koom ua ke txias.
Cov khoom siv cua sov yog coated los ntawm PTFE, thiab yuav tsum tau ua kom huv si thiab tsis muaj kev sib kis txhua lub sijhawm.Cov cuab yeej cua sov yuav tsum tau teeb tsa thiab ntsuas kom muaj qhov kub thiab txias ntawm 240 Cto 260 ℃, uas nyob ntawm txoj kab uas hla ntawm cov yeeb nkab. Txhua qhov kev sib koom ua ke yuav tsum tau ua hauv qab npog kom tsis txhob muaj kev sib kis ntawm cov pob qij txha los ntawm plua plav, av, lossis dej noo.
Cov txheej txheem ntawm qhov (socket) fusion
1. Txiav cov kav dej, ntxuav lub qhov ncauj nrog ib daim ntaub huv thiab tsis tso dej cawv kom txog rau qhov tob ntawm lub qhov (socket). Kos qhov ntev ntawm lub qhov (socket). Ntxuav sab hauv ntawm lub qhov (socket) seem.
2.Scrape sab nraud ntawm cov yeeb nkab spigot kom tshem tawm cov txheej sab nraud ntawm cov yeeb nkab. Tsis txhob khawb qhov hauv lub qhov (sockets).
3. Paub meej tias qhov ntsuas kub ntawm cov cua sov, thiab xyuas kom meej tias cov cua sov qhov chaw huv si.
4. Nias lub qhov (spigot) thiab lub qhov (socket) seem mus rau cov khoom cua sov kom tag nrho qhov ntev ntawm kev sib koom, thiab cia kom sov rau lub sijhawm tsim nyog.
5. Rub lub hau thiab lub qhov (socket) ntawm cov khoom cua sov, thiab thawb ua ke sib npaug mus rau qhov ntev ntawm kev sib koom ua ke yam tsis muaj kev cuam tshuam ntawm cov pob qij txha. Clamp cov pob qij txha thiab tuav kom txog thaum txias tag. Lub weld flow hlaws yuav tsum tshwm nyob ib ncig ntawm tag nrho cov ncig ntawm lub qhov (socket) kawg.
Parameters ntawm qhov (socket) fusion
| dn, mm | Qhov tob tob, mm | Fusion kub, C | Lub sijhawm cua sov, S | Lub sijhawm fusion, S | Lub sijhawm txias, S |
| 20 | 14 | 240 | 5 | 4 | 2 |
| 25 | 15 | 240 | 7 | 4 | 2 |
| 32 | 16 | 240 | 8 | 6 | 4 |
| 40 | 18 | 260 | 12 | 6 | 4 |
| 50 | 20 | 260 | 18 | 6 | 4 |
| 63 | 24 | 260 | 24 | 8 | 6 |
| 75 | 26 | 260 | 30 | 8 | 8 |
| 90 | 29 | 260 | 40 | 8 | 8 |
| 110 | 32.5 ib | 260 | 50 | 10 | 8 |
Nco tseg: Lub qhov (socket fusion) tsis pom zoo rau cov kav dej SDR17 thiab hauv qab no.
Mechanical Connections
Raws li nyob rau hauv lub tshav kub fusion txoj kev, muaj ntau hom kev sib txuas ntawm cov cuab yeej thiab cov txheej txheem, xws li: flange kev twb kev txuas, PE-steel hloov ib feem ...
Electrofusion
Hauv kev sib xyaw ua ke ntawm cov cua sov ua ke, cov cuab yeej siv cua sov yog siv los ua kom sov cov yeeb nkab thiab qhov chaw haum. Lub electrofusion sib koom ua ke yog rhuab nyob rau hauv, los ntawm ib tug neeg xyuas pib ntawm lub interface ntawm lub sib koom tes los yog, raws li nyob rau hauv ib tug tsim, los ntawm ib tug conductive polymer.Heat yog tsim raws li ib tug hluav taws xob tam sim no yog siv rau cov conductive khoom nyob rau hauv lub haum. Daim duab 8.2.3.A qhia txog ib qho kev sib koom ua ke ntawm electrofusion. PE yeeb nkab rau cov yeeb nkab sib txuas ua los ntawm cov txheej txheem electrofusion yuav tsum tau siv cov electrofusion couplings. Qhov sib txawv tseem ceeb ntawm cov pa hluav taws xob fusion thiab electrofusion yog cov txheej txheem uas siv cov cua sov.
Cov txheej txheem ntawm Electrofusion
1. Txiav cov kav dej square, thiab kos cov kav dej ntawm qhov ntev sib npaug ntawm lub qhov (socket) qhov tob.
2. Scrape lub cim ntawm cov yeeb nkab spigot kom tshem tawm tag nrho cov oxidized PE txheej mus rau qhov tob ntawm kwv yees li 0.3mm.Siv ib txhais tes scraper, los yog ib tug rotating tev scraper tshem tawm cov PE txheej. Tsis txhob siv cov ntawv xuab zeb. Cia cov electrofusion fittings nyob rau hauv lub hnab yas kaw kom txog thaum xav tau kev sib dhos. Tsis txhob khawb hauv qhov haum, ntxuav nrog lub tshuab ntxhua khaub ncaws kom tshem tawm tag nrho cov plua plav, av, thiab ya raws.
3. Ntxig cov yeeb nkab rau hauv qhov sib txuas mus rau cov neeg ua pov thawj. Xyuas kom cov kav dej yog sib npaug, thiab thaum siv cov kav dej PE coiled, yuav tsum tau rov qab clamps kom tshem tawm ovality. Clamp qhov sib koom ua ke.
4. Txuas lub tshuab hluav taws xob, thiab ua raws li cov lus qhia rau lub thawv tswj fais fab tshwj xeeb. Tsis txhob hloov cov txheej txheem fusion rau qhov loj thiab hom haum.
5. Cia qhov sib koom ua ke hauv lub rooj sib dhos clamp kom txog thaum lub sijhawm ua kom txias tag nrho.
Saddle Fusion
Cov txheej txheem ib txwm siv los koom nrog lub eeb rau sab ntawm cov yeeb nkab, kos duab hauv daim duab 8.2.4, muaj cov cua sov ib txhij ntawm ob sab nraud ntawm cov yeeb nkab thiab qhov sib txuam ntawm "eeb" hom haum nrog concave thiab convex zoo li cov cuab yeej cua sov kom txog thaum ob qho tib si qhov chaw ncav cuag qhov kub thiab txias. Qhov no tej zaum yuav ua tiav los ntawm kev siv lub eeb fusion tshuab uas tau tsim los rau lub hom phiaj no.
Muaj yim theem pib ua ntu zus uas ib txwm siv los tsim lub eeb fusion sib koom ua ke:
1.Txhawm cov yeeb nkab saum npoo qhov chaw uas lub eeb haum yuav tsum nyob
2. Txhim kho qhov tsim nyog lub tshuab cua sov eeb adapters
3. Nruab lub eeb fusion tshuab rau ntawm cov yeeb nkab
4. Npaj qhov chaw ntawm cov yeeb nkab thiab haum raws li cov txheej txheem pom zoo
5.Txhim kho qhov chaw
6.Heat ob lub yeeb nkab thiab lub eeb haum
7.Nias thiab tuav cov khoom ua ke
8. Txias qhov sib koom ua ke thiab tshem tawm lub tshuab fusion
CHUANGRONGyog ib lub tuam txhab sib koom ua lag luam thiab kev lag luam sib koom ua ke, tsim nyob rau xyoo 2005 uas tau tsom mus rau kev tsim cov HDPE Pipes, Fittings & Valves, PPR Pipes, Fittings & Valves, PP compression fittings & Valves, thiab muag cov yas yeeb nkab vuam tshuab, yeeb nkab cuab yeej, yeeb nkab kho Clamp thiab lwm yam. Yog tias koj xav tau cov ntsiab lus ntxiv, thov hu rau peb +86-28-84319855,chuangrong@cdchuangrong.com, www.cdchuangrong.com ib
Lub sij hawm xa tuaj: Plaub Hlis-08-2025
