1. Cov yas
Plasticity yog hais txog lub peev xwm ntawm cov khoom siv hlau los tsim cov yas deformation (mus tas li deformation) yam tsis muaj kev puas tsuaj nyob rau hauv load.
2. Lub hardness
Hardness yog qhov ntsuas ntawm qhov nyuaj lossis muag cov khoom siv hlau.Nyob rau hauv lub neej no nyob rau hauv zus tau tej cov hardness ntsuas txoj kev yog feem ntau siv nyob rau hauv lub indenter hardness txoj kev, nws yog siv ib tug tej yam geometric duab ntawm lub taub hau indenter nyob rau hauv ib tug tej yam load rau saum npoo ntawm cov khoom hlau yuav tsum tau kuaj, raws li zoo raws li qhov degree ntawm indenter los txiav txim qhov hardness tus nqi.
Cov kev siv feem ntau yog Brinell hardness (HB), Rockwell hardness (HRA, HRB, HRC) thiab Vickers hardness (HV) thiab lwm txoj kev.
3. Kev qaug zog
Lub zog, plasticity thiab hardness yog cov cim qhia ntawm cov khoom siv hluav taws xob ntawm cov hlau hauv qab cov khoom zoo li qub.Qhov tseeb, ntau lub tshuab ua haujlwm tau ua haujlwm nyob rau hauv lub voj voog, thiab qaug zog tuaj yeem tshwm sim nyob rau hauv cov xwm txheej no.Txoj kev kuj yuav tsum muaj lwm seem zoo li tshwj xeeb-puab steel yeeb nkab.
Cov dej tsis tshua muaj siab thauj welded steel yeeb nkab (GB / T3092-1993) tseem hu ua cov yeeb nkab dav dav, feem ntau hu ua cov yeeb nkab dub.Nws yog welded steel yeeb nkab siv rau kev xa dej, roj, huab cua, roj, cua sov chav thiab lwm yam dej siab thiab lwm yam.Cov phab ntsa tuab ntawm cov yeeb nkab steel yog muab faib ua cov yeeb nkab steel zoo tib yam thiab cov yeeb nkab tuab tuab.Daim ntawv kawg ntawm cov yeeb nkab yog muab faib ua cov hlau tsis-rebar steel raj (lub teeb raj) thiab nrog rebar steel raj.Steel raj specifications qhia los ntawm nominal txoj kab uas hla (mm), uas yog ib qho approximation ntawm lub puab kab.Nws yog kev cai siv ntiv tes, xws li 11/2.Cov welded steel yeeb nkab siv rau kev thauj mus los tsis tshua muaj siab yog siv los ua cov yeeb nkab qub ntawm galvanized welded steel yeeb nkab siv rau kev thauj mus los tsis tshua muaj siab.
Galvanized welded steel yeeb nkab rau kev thauj mus los tsis tshua muaj siab (GB / T3091-1993) tseem hu ua galvanized fais welded steel yeeb nkab, feem ntau hu ua cov yeeb nkab dawb.Nws yog ib qho kub dip galvanized welded (lub qhov cub vuam lossis hluav taws xob vuam) steel yeeb nkab siv rau kev xa dej, roj, roj cua, cua sov chav, dej sov thiab lwm yam dej tsis tshua muaj siab lossis lwm lub hom phiaj.Cov phab ntsa tuab ntawm cov yeeb nkab steel yog muab faib ua cov yeeb nkab zoo tib yam galvanized steel yeeb nkab thiab tuab galvanized steel yeeb nkab.Qhov kawg ntawm cov yeeb nkab yog muab faib ua galvanized steel yeeb nkab tsis muaj xov thiab galvanized steel yeeb nkab nrog xov.
Cov pa roj carbon steel hlau bushing (GB3640-88) yog siv los tiv thaiv cov hlau hauv cov tsev lag luam thiab pej xeem, kev teeb tsa tshuab thiab khoom siv thiab lwm yam kev teeb tsa hluav taws xob.
Ncaj seam fais welded steel yeeb nkab (YB242-63) yog cov yeeb nkab steel nrog longitudinally parallel welds.Feem ntau muab faib ua metric welded steel yeeb nkab, welded nyias-phab ntsa yeeb nkab, transformer txias tubing thiab hais txog.
Kauv seam submerged arc welded steel yeeb nkab (SY5036-83) rau kev thauj mus los ntawm cov kua dej siab yog ib qho kauv seam steel yeeb nkab, uas yog ua los ntawm kub dov steel sawb raws li lub raj dawb paug, feem ntau tsim los ntawm sov kub thiab welded los ntawm ob sab submerged arc vuam txoj kev. .Cov yeeb nkab steel muaj qhov muaj peev xwm ua tau zoo thiab kev ua haujlwm vuam zoo.Nws muaj kev nyab xeeb thiab txhim khu kev qha siv tom qab txhua yam kev soj ntsuam nruj thiab kev sim.Loj txoj kab uas hla steel yeeb nkab, siab kis tau tus mob efficiency, thiab yuav txuag tau lub peev ntawm pipeline tso.Feem ntau yog siv rau kev xa cov roj thiab cov kav dej ntuj.
Lub ntsiab kev ua tau zoo ntawm seamless square raj, Cov txheej txheem tseem ceeb
1. Sanitary qib iav raj txheej txheem:
Tube billet cua sov - tshuaj xyuas - daim tawv nqaij - - - perforation, pickling, sib tsoo, qhuav lubrication, vuam taub hau, txias kos duab, khoom tov kho, pickling, pickling passivation - tshuaj xyuas - txias dov - roj - txiav taub hau - qhuav - polishing, polishing, kev tshuaj xyuas, kev txheeb xyuas, kev ntim khoom tiav
2. kev lag luam yeeb nkab txheej txheem
Tube billet cua sov - tshuaj xyuas - tawv nqaij - - - perforation, pickling, sib tsoo, qhuav lubrication, vuam taub hau, txias kos duab, khoom kho kho, pickling, pickling passivation - tshuaj xyuas
3. Cov txheej txheem vuam yeeb nkab
Uncoiling, leveling, kawg txiav thiab vuam, looping, sib sau, vuam, vuam hlaws sab hauv thiab sab nraud kom tshem tawm - precorrection - induction cua sov kho, sizing thiab straightening, eddy tam sim no kuaj, txiav, hydraulic siab check, pickling, zaum kawg tshuaj xyuas, ntim
4. seamless square raj txheej txheem
Round steel yeeb nkab tshuaj xyuas - - - - cua sov perforation, sizing, kub dov, tiaj taub hau, tshuaj xyuas, pickling, pob annealing - txias drawn - molding - qhov ncauj - tshuaj xyuas
Qhov kev ua tau zoo ntawm seamless square raj, Lub hom phiaj dav dav
1. Seamless steel yeeb nkab rau cov qauv (GB / T8162-1999) yog siv rau cov qauv dav dav thiab cov qauv siv tshuab ntawm seamless steel yeeb nkab.
2. Seamless steel yeeb nkab rau kev thauj mus los ntawm cov kua dej (GB/T8163-1999) yog siv rau kev xa dej, roj, roj thiab lwm yam dej hauv cov yeeb nkab seamless steel.
3. Seamless steel raj rau qis thiab nruab nrab siab boilers (GB3087-1999) yog cov zoo carbon structural steel kub-kuav los tiag thiab txias-draw (dov) seamless steel hlab, uas yog siv rau manufacturing superheated chav kav, boiling dej kav rau ntau yam cov qauv ntawm cov boilers qis thiab nruab nrab siab thiab cov kav dej superheated, cov kav dej pa taws loj, cov kav dej me me thiab cov kav dej arch cib rau locomotive boilers.
4. Seamless steel raj rau kev kub siab boiler (GB5310-1995) yog siv rau kev tsim kev kub siab thiab siab tshaj dej siab boiler cua sov nto nrog zoo carbon steel, alloy steel thiab stainless hlau seamless steel raj.
5. Kev kub siab seamless steel yeeb nkab rau cov khoom siv tshuaj lom neeg (GB6479-2000) yog tsim rau kev ua haujlwm kub ntawm -40 ~ 400 ℃, kev ua haujlwm siab ntawm 10 ~ 30Ma chemical khoom thiab cov kav dej ntawm cov pa roj carbon zoo steel thiab alloy steel seamless cev steel.
6. Seamless steel raj rau roj av cracking (GB9948-88) yog tsim rau lub cub tawg, tshav kub exchanger thiab pipeline seamless steel raj rau roj refinery.
7. Hlau yeeb nkab rau geological drilling (YB235-70) yog siv rau cov tub ntxhais drilling los ntawm geological department, uas yuav muab faib ua laum yeeb nkab, laum dab tshos, tub ntxhais yeeb nkab, casing yeeb nkab thiab nag lossis daus yeeb nkab raws li nws siv.
8. Seamless steel yeeb nkab rau pob zeb diamond core drilling (GB3423-82) yog siv rau pob zeb diamond tub ntxhais drilling laum yeeb nkab, tub ntxhais pas nrig, casing seamless steel yeeb nkab.
9. Roj drilling yeeb nkab (YB528-65) yog seamless steel yeeb nkab siv rau ob qho kawg ntawm cov roj drilling thickening sab hauv lossis sab nraud.Cov yeeb nkab steel tuaj yeem muab faib ua ob hom: xaim xaim thiab tsis xaim xaim.Tig hlau yeeb nkab txuas nrog kev sib koom ua ke, thiab cov yeeb nkab uas tsis yog xaim xaim yog txuas nrog cov cuab yeej sib koom ua ke los ntawm txoj kev vuam pob tw.
10. Seamless carbon steel steel yeeb nkab rau nkoj (GB5213-85) yog seamless carbon steel yeeb nkab siv hauv kev tsim cov chav kawm I siab yeeb nkab, chav kawm II siab yeeb nkab system, boiler thiab superheater.Kev ua haujlwm kub ntawm seamless carbon steel yeeb nkab phab ntsa yuav tsum tsis pub tshaj 450 ℃, thiab seamless alloy steel yeeb nkab phab ntsa yuav tsum tshaj 450 ℃.
11. Seamless steel yeeb nkab rau tsheb qag lub tes tsho yeeb nkab (GB3088-82) yog kub dov seamless steel yeeb nkab ntawm zoo carbon structural steel thiab alloy structural steel rau tsheb qag tes tsho yeeb nkab thiab qag tsev yeeb nkab ntawm tsav qag.
12. Kev kub siab tubing rau diesel cav (GB3093-2002) yog seamless txias drawn steel raj rau siab siab yeeb nkab ntawm diesel cav txhaj system.
13. Seamless steel raj nrog precision puab txoj kab uas hla rau hydraulic thiab pneumatic thooj voos kheej kheej (GB8713-88) yog txias-draw los yog txias-dov precision seamless steel raj nrog precision puab kab rau hydraulic thiab pneumatic thooj voos kheej kheej.
14. Cold drawn los yog txias dov precision seamless steel yeeb nkab (GB3639-2000) yog siv rau txhua yam qauv, hydraulic khoom nrog siab qhov tseeb thiab zoo nto tiav.Kev siv cov precision seamless steel yeeb nkab tsim machinery qauv los yog cov khoom siv hydraulic, tuaj yeem txuag tau ntau lub sijhawm ua haujlwm, txhim kho cov khoom siv tus nqi, thiab txhim kho cov khoom zoo.
15. Stainless hlau seamless steel yeeb nkab rau cov qauv (GB/T14975-2002) yog ib tug kub dov (extruding, expanding) thiab txias-draw (dov) seamless steel yeeb nkab ua los ntawm stainless hlau, uas yog dav siv nyob rau hauv tshuaj, roj av, textile, kho mob, khoom noj khoom haus, tshuab thiab lwm yam lag luam rau corrosion resistant kav thiab cov yam ntxwv thiab qhov chaw.
16. Seamless stainless hlau raj rau cov dej thauj mus los (GB/T14976-2002) yog kub dov (extruded, expanded) thiab txias-draw (dov) seamless steel hlab ua los ntawm stainless hlau rau kev thauj mus los kua.
17. Tshwj xeeb-puab seamless steel yeeb nkab yog cov ntsiab lus dav dav rau seamless steel yeeb nkab nrog rau lwm cov duab hla ntu tshwj tsis yog cov yeeb nkab puag ncig.
Post lub sij hawm: May-23-2022