K-qib cov kav hlau kav hlau yog cov kav dej raws li lawv cov phab ntsa tuab thiab tau siv dav hauv ntau yam engineering xws li dej hauv nroog, dej ntws, cua sov, thiab kev tiv thaiv hluav taws. Tus "K" sawv cev rau phab ntsa thickness coefficient; tus naj npawb ntau dua, cov yeeb nkab phab ntsa tuab dua, ua rau muaj kev txhim kho kev ua haujlwm siab, lub zog muaj zog, thiab ua haujlwm rau cov khoom siv sab nraud, ua rau nws tsim nyog rau ntau qhov kev tsim vaj tsev.
Yam ntxwv ntawm Txhua Qib
|
Chav kawm |
Phab ntsa Thickness Class Coefficient (K-tus nqi) |
Ntsiab nta |
Kev ntsuas siab (Approx.) |
Txheem & Kev Lag Luam Status |
|
Chav Kawm K7 |
7 |
Thinner phab ntsa thickness, kuj tsis tshua muaj siab ua hauj |
Tsawg dua lossis sib npaug li 1.0 MPa |
Tsis yog - cov khoom lag luam |
|
Chav Kawm K8 |
8 |
Phab ntsa thickness thiab siab tsis kam poob ntawm Chav K7 thiab Chav K9 |
Tsawg dua lossis sib npaug li 1.25 MPa |
Tsis yog - cov khoom lag luam |
|
Chav Kawm K9 |
9 |
Lub teb chaws tus qauv khoom; phab ntsa thickness ua raws li lub teb chaws tus qauv; siab tsis kam |
Ntau dua lossis sib npaug li 1.6 MPa |
Qhia meej meej hauv qibNational Standard (GB) |
|
Chav Kawm K10 |
10 |
Thicker phab ntsa, muaj zog ua haujlwm siab |
Siab dua Class K9 |
Standard khoom, haum rausiab dua -kev siv siab |
|
Chav Kawm K12 |
12 |
Thickest phab ntsa, siab tshaj plaws ua hauj |
Siab tshaj |
Standard khoom, haum rauultra-siab- kev siv siab |
Cov Lus Qhia Tseem Ceeb thiab Kev Txiav Txim Siab
Phab ntsa Thickness xam
Phab ntsa thickness ntawm tag nrho cov K- qib ductile hlau kav raws li ib tug unified xam cov mis: e=K × ({2}} × DN), qhov twg e yog tus qauv phab ntsa thickness (mm), DN yog lub nominal txoj kab uas hla (mm), thiab K yog phab ntsa thickness qib coefficient. Cov qauv no siv tau rau tag nrho cov kab K- qib kav, nrog rau kev suav cov logic thiab muaj zog thoob ntiaj teb. Nws tuaj yeem xam cov txheej txheem phab ntsa thickness sib txawv ntawm nominal diameters, muab lub hauv paus tseem ceeb rau kev xaiv engineering thiab kev txheeb xyuas lub zog. K9 qib kav yog siv dav hauv engineering. Tsuas yog hloov K=9 rau hauv cov qauv los xam cov qauv phab ntsa thickness rau qhov sib thooj nominal txoj kab uas hla. Qhov no yog qhov kev xaiv tseem ceeb hauv kev tsim vaj tsev hauv nroog.
Kev sib raug zoo ntawm Qib thiab Corrosion Resistance
Ntau tus neeg siv yooj yim poob rau hauv qhov kev xav tsis zoo tias "cov phab ntsa tuab dua, qhov zoo dua qhov kev tiv thaiv corrosion." Qhov tseeb, tsis muaj kev sib raug zoo ntawm ob qho tib si. Kev tiv thaiv corrosion ntawm cov kav xa dej feem ntau yog txiav txim siab los ntawm lawv sab hauv thiab sab nraud los tiv thaiv -corrosion txheej. Cov txheej txheem siv feem ntau suav nrog cov cement hauv ob sab hauv thiab sab nraud zinc txheej nrog cov xim asphalt, uas tiv taus cov av yaig thiab dej corrosion, ua kom ntev lub raj xa dej. Phab ntsa tuab, txawm li cas los xij, tsuas yog cuam tshuam rau lub raj xa dej lub zog thiab lub siab- cov kabmob muaj peev xwm, thiab tsis cuam tshuam rau nws cov corrosion kuj. Yog li ntawd, thaum xaiv cov kav dej, cov tshuaj tiv thaiv -corrosion txheej thiab phab ntsa tuab yuav tsum raug txiav txim siab cais, suav nrog kev teeb tsa ib puag ncig los txiav txim siab qhov tsim nyog tiv thaiv corrosion uas sib npaug kev nyab xeeb thiab kev lag luam.
Xaiv qhov Tsim Nyog Qib
Nyob rau hauv tag nrho cov ntau yam ntawm K-qib ductile hlau kav, K9 qib ua hauj lwm raws li lub hauv paus kev xaiv benchmark rau engineering tej yaam num, haum rau feem coob ntawm cov ntawv thov.
Ua ntej K9 Qib
Rau feem ntau lub nroog engineering tej yaam num (xws li cov pa dej, kua, thiab cua sov systems), K9 kav muab qhov zoo tagnrho tus nqi -kev ua tau zoo piv thiab widest daim ntawv thov. Qhov no yog vim lawv lub zog muaj zog, ruaj khov siab -cov kabmob muaj peev xwm, thiab kev ntseeg tau raws li cov qauv hauv tebchaws.
Kev Xav Tau Tshwj Xeeb, Kev Xaiv Tshwj Xeeb
Yog tias tus qauv tsim siab tshaj 1.6MPa, lossis yog tias qhov kev xav tau siab heev muaj nyob rau hauv cov yeeb nkab rigidity thiab tsis kam mus rau sab nraud loads (piv txwv li, hla txoj kev geology lossis siab - cov xwm txheej sib kis), K10 lossis K12 yuav raug xaiv. Hloov pauv, rau cov ntawv siv qis- siab (xws li, sab hauv qis- dej siab, me- ntsuas dej), cov qib K8 lossis K7 tuaj yeem raug xaiv los tswj cov nqi tsim khoom. Txawm li cas los xij, nco ntsoov tias cov qhab nia no tsis yog - cov khoom lag luam. Kev soj ntsuam nruj ntawm cov khoom zoo thiab kev ua tau zoo sib xws yuav tsum tau ua kom tsis txhob cuam tshuam txog kev nyab xeeb ntawm txoj haujlwm.
Shanxi Jintai Hongye Casting & Forging Machinery Co., Ltd. yog nyob rau hauv Shanxi Province, Suav. Peb cov haujlwm tseem ceeb hauv kev lag luam suav nrog cov khoom siv hlau yeeb nkab fittings, cov raj xa dej, ntau yam li qub, thiab cov khoom siv manhole npog series. Rau cov ncauj lus kom ntxaws txog cov khoom lag luam lossis sib tham txog kev koom tes, thov hu rau peb txhua lub sijhawm:
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