JIS G3444 Cov Txheej Txheem Hlau Steel
JIS G3444 yog tus qauv tshwj xeeb hauv Japanese cov qauv kev lag luam (JIS) rau cov hlau thiab alloy steel kav rau kev siv cov qauv txheej txheem. Nws yog tsuas yog siv nyob rau hauv cov xwm txheej uas yuav tsum muaj rau lub zog thiab cov ntawv sau ua ke, txhawb kev txhawb nqa, thiab choj thauj} cov kabmob qauv. Nrog nws cov nplauv tsis muaj zog thiab ruaj khov kho zog, nws tau dhau los ua cov yeeb nkab uas nquag siv hauv cov khoom lag luam thiab vaj tse.
Qib: Stk290, STK400, STK490, STK500, STK540
Sab Nrauv Inch: 33.4-660mm
Phab Ntsa Thickness: 2.1-22mm
Ntev: 0.8-18m
Kev tsim khoom: kub dov.
Nto kho: txheej, pleev xim, galvanized, thiab lwm yam.
JIS G3444 txheej txheem txheej txheem steel raj tshuaj phiv:
|
Tshuaj Muaj Tshuaj % |
|||||
|
Qib hlau |
C |
Si |
Mn |
P |
S |
|
Stk 400 |
0.25 max. |
- |
- |
0.040 max. |
0.040 max. |
|
Stk 490 |
0.18 Max. |
0.55 max. |
1.000 max. |
0.040 max. |
0.040 max. |
JIS G3444 Txheej Txheem Steel Raj Raj Tshuab Khoom:
|
Qib hlau |
Lub zog tensile |
Paib lub zog |
Elongation % |
|
MPa |
MPa |
(No.5 Xeem Ntawv) | |
|
Stk 400 |
400 {41} min. |
245 {25} min. |
23 feeb. |
|
Stk 490 |
490 {50} Min. |
325 {33} Min. |
23 feeb. |
Kev tsim khoom thiab kev tswj hwm zoo
1. Kev Tsim Kho Cov Txheej Txheem
JIS G3444 cov txheej txheem hlau steel yog feem ntau tsim kev siv ob txoj kev, ua kom tau raws li kev sib tw thiab cov kev xav tau zoo:
Hluav taws xob tsis kam welding (ERW):Haum rau cov kav dej nrog txoj kab uas hla sab nraud tsawg dua lossis sib luag rau 609.6mm. Siab - zaus yog siv rau weld cov npoo ntawm cov yeeb nkab ntawm cov yeeb nkab. Weld lub zog yog ntau dua los yog sib npaug ntawm 90% ntawm cov khoom siv lub zog, ua rau muaj peev xwm ua tau zoo thiab muaj peev xwm tswj tau. Cov txheej txheem no feem ntau siv rau cov pawg -} produced txheem - cov kav dej loj.
Seamless steel sintering (sms):Suitable for pipes with an outer diameter greater than 219.1mm or requiring higher pressure and fatigue resistance (such as heavy machinery load-bearing pipes). Cov txheej txheem no cuam tshuam kub- dov piercing ua raws los ntawm cov khaub ncaws txias / dov, tshem tawm ntau yam zog tag nrho lub zog.
2. Yuav tsum tau tshuaj xyuas zoo
Txhawm rau kom muaj kev nyab xeeb siv ntawm cov qauv, txhua pob ntawm cov kav dej yuav tsum dhau cov kev tshuaj xyuas hauv qab no:
1. Cov tsos tshuaj tshuaj xyuas:Tsis muaj kab nrib pleb, quav, nti, lossis delamination rau saum npoo. Kev xeb tsawg dua li lossis sib npaug rau 10% ntawm phab ntsa tuab.
2. Tshuaj Ntsuam Xyuas Sab Nrau:Ntsuas cov uas hla sab nraud, phab ntsa thickness, thiab ovality ntawm txhua cov yeeb nkab kom paub tseeb tias yuav tsum muaj.
3. Cov Khoom Siv Khoom Siv Cov Khoom Siv Hluav Taws Xob:Peb cov hnoos qeev tau sib piv los ntawm txhua pob thiab raug rau Tensile thiab khoov kev xeem (khoov kaum-{1}} x phab ntsa tuab). Tsuas yog cov hnoos qeev dawb ntawm cov kab nrib pleb yog suav tias yog qhov lees txais.
4. HYDRAULIC SIAB TESTING:ERW kav yuav tsum tau mus kuaj hydrostatic (sim siab=2 MPa, tuav siab rau 30 feeb, tsis muaj xaue). Seamless kav kuj tseem tuaj yeem yauv ua hydrostatic lossis ultrasonic kuaj raws li xav tau.
5. WELD Kev Soj Ntsuam (ERW Kav Dej Tsuas):Eddy kev sim tam sim no lossis x {{{{{{{{{{{{{{{} Kev sim RAY kev sim yog siv los tshawb xyuas sab hauv weld tsis xws luag thiab ua kom muaj weld zoo. III. Lub hlwb
Daim Ntawv Thov Cov Lus Qhia thiab Xaiv Cov Lus Taw Qhia
1. Cov ntawv thov raug
Kev tsim kho: steel qauv txhua txhua, kab teeb, scaffolding hlab, thiab seismic txhawb nqa;
Machinery: Siv lub cuab yeej siv tshuab: kev siv tes ua haujlwm (excavator / crane) pab txhawb, thiab cov cuab yeej siv conveyor;
Cov txheej txheem tsim qauv: Cov tub rog me me yas, lub tsheb ciav hlau hauv nroog, thiab cov kab ntawv txuas lus ib ntus;
Lwm yam kev siv: Warehouse Ntxhuav kab, kev ua liaj ua teb cov ntawv thav duab, thiab lub teeb {{{} ntim conveyor kav dej.
2. Xaiv cov lus qhia
Lub teeb - Lub luag haujlwm muaj peev xwm tsawg dua los yog sib npaug rau 5knum): Xaiv cov kab mob siab rau qhov zoo tshaj plaws tus nqi- ua hauj lwm zoo.
Nruab Nrab - Lub luag haujlwm muaj 5-15Nkn): Xaiv stk 490, nyiam tshaj plaws nrog Erw Technology (od tsawg dua los yog sib luag rau 219.1mm). Seamless thev naus laus zis muaj rau OD> 219.1mm.
Hnyav {{{0 {{{{{} Dute} Dute} Dute} Dutory (Thauj Muaj Peev Xwm> 15Kn): Xaiv Stk 540 nrog seamless technology rau kev txhim kho lub zog thiab nkees tsis kam.
Corrosive ib puag ncig (xws li, sab nraum zoov thiab huab cua chaw ib puag ncig): kub} pa jis g3444 steel yeeb nkab tsis zoo rau kev txhim kho corrosion tsis kam thiab ncua kev pabcuam lub neej.
JIS G3444 cov txheej txheem hlau steel, nrog nws cov txiaj ntsig ntawm "lub zog raug, thiab cov nqi yeeb yam siab," tau ua cov yeeb nkab uas nyiam nyiam nyob rau hauv kev tsim kho thiab tshuab ua ke. Peb tuaj yeem phim cov qhab nia thiab cov txheej txheem rau cov kev tsim khoom tshwj xeeb- yuav tsum muaj kev sib npaug ntawm cov txheej txheem kev nyab xeeb thiab kev lag luam muaj txiaj ntsig.
