40Cr steel yeeb nkab yog customized los ntawm cov chaw tsim khoom
Cov yam ntxwv stainless hlau seamless yeeb nkab (GB / T14975-2002) yog kub-kuav los tiag (extruded, nthuav) thiab txias drawn (dov) seamless yeeb nkab ua los ntawm stainless hlau rau corrosion-resistant kav, yam ntxwv thiab qhov chaw nyob rau hauv tshuaj, roj av, lub teeb textile, kho mob, zaub mov, tshuab thiab lwm yam lag luam.
Kev suav cov txheej txheem steel yeeb nkab: (sab nraud txoj kab uas hla - phab ntsa thickness) * phab ntsa thickness * 0.02466 = qhov hnyav ntawm cov yeeb nkab steel ib 'meter'
1. Seamless steel yeeb nkab rau cov qauv: gb8162-2008
2. Hauv av seam steel yeeb nkab rau cov kua kis tau tus mob: gb8163-2008
3. Seamless steel yeeb nkab rau boiler: gb3087-2008
4. Kev kub siab seamless yeeb nkab rau boiler: GB5310-2008 (ST45.8 - hom III)
5. Kev kub siab seamless steel yeeb nkab rau cov khoom siv tshuaj chiv: GB6479-2000
6. Seamless steel yeeb nkab rau geological drilling: yb235-70
7. Seamless steel yeeb nkab rau roj drilling: yb528-65
8. Seamless steel yeeb nkab rau roj av tawg: GB9948-2006
9. Tshwj xeeb seamless yeeb nkab rau roj av laum dab tshos: yb691-70
10. Seamless steel yeeb nkab rau tsheb qag ncej: gb3088-1999
11. Seamless steel yeeb nkab rau nkoj: gb5312-1999
12. Cold drawn txias dov precision seamless steel yeeb nkab: gb3639-1999
13. Ntau cov yeeb nkab 16Mn, 27SiMn, 15CrMo, 35CrMo, 12CrMoV, 20g, 40Cr, 12Cr1MoV, 15CrMo
Tsis tas li ntawd, muaj GB / t17396-2009 (kub dov seamless steel yeeb nkab rau hydraulic prop)
Gb3093-1986 (siab siab seamless steel yeeb nkab rau diesel cav)
GB / t3639-1983 (txias kos los yog txias dov precision seamless steel hlab)
GB / t3094-1986 (txias kos seamless steel yeeb nkab, tshwj xeeb zoo li steel yeeb nkab)
GB / t8713-1988 (precision puab txoj kab uas hla seamless steel raj rau hydraulic thiab pneumatic thooj voos kheej kheej)
Gb13296-2007 (stainless steel seamless steel yeeb nkab rau boiler thiab tshav kub exchanger)
GB / T14975-2002 (stainless steel seamless steel yeeb nkab rau qauv)
GB / T14976-2002 (stainless steel seamless steel yeeb nkab rau kev thauj mus los)
GB / t5035-1993 (seamless steel yeeb nkab rau tsheb qag tes tsho yeeb nkab)
API Spec 5ct-1999 (Specification for casing and tubing), thiab lwm yam Cold drawn (dov) structural yeeb nkab: round yeeb nkab → cua sov → perforation → heading → annealing → pickling → roj txheej (tooj liab plating) → multi pass txias kos duab (txias dov) → blank yeeb nkab → kho cua sov → straightening → hydrostatic test (flaw detection) → marking → warehousing.
Kub dov (extruded structural yeeb nkab): round yeeb nkab dawb paug → cua sov → perforation → peb yob cross dov, nruam dov los yog extrusion → yeeb nkab stripping → sizing (los yog txo) → txias → blank yeeb nkab → straightening → hydrostatic test (los yog flaw detection) → kos npe → warehouse.
Cov yeeb nkab ua yeeb yam txias siv cov kub dov steel coil raws li cov khoom siv raw thiab nqa tawm txias tas li dov tom qab acid pickling kom tshem tawm cov nplai oxide. Cov khoom tiav yog dov hard coil. Vim lub txias ua hauj lwm hardening tshwm sim los ntawm tas mus li txias deformation, lub zog thiab hardness ntawm dov hard coil nce thiab lub toughness thiab plasticity Performance index txo. Yog li ntawd, lub stamping kev ua tau zoo yuav deteriorate thiab tsuas yog siv tau yooj yim deformed qhov chaw. Lub zog dov coil tuaj yeem siv los ua cov khoom siv raw ntawm cov nroj tsuag kub-dip galvanizing, vim tias cov kub-dip galvanizing units yog nruab nrog cov kab annealing. Qhov hnyav ntawm dov hard coil feem ntau yog 6 ~ 13.5T, thiab sab hauv txoj kab uas hla ntawm steel kauj yog 610 hli.
Feem ntau, nruam annealing (CAPL chav tsev) los yog tswb rauv taws annealing yuav tsum tau nqa tawm rau txias dov daim hlau thiab coils kom tshem tawm txias ua hauj lwm hardening thiab dov kev nyuaj siab, thiaj li ua tau raws li cov cuab yeej cuab tam indexes teev nyob rau hauv cov qauv coj.
Qhov zoo ntawm qhov chaw, qhov pom thiab qhov tseeb ntawm cov yeeb nkab txias-kuav los tiag yog zoo dua li cov yeeb nkab kub dov, thiab nws cov khoom tuab yog dov mus txog 0.18mm, yog li nws tau nyiam los ntawm feem coob ntawm cov neeg siv. Noj txias dov steel kauj ua lub hauv paus qauv yeeb nkab rau kev sib sib zog nqus ua cov khoom, nws tau dhau los ua cov khoom muaj nqis ntxiv. Xws li electro galvanizing, kub galvanizing, ntiv tes resistant electro galvanizing, xim coated steel kauj, kev co damping puas steel phaj, PVC coated steel phaj, thiab lwm yam. dav siv. Cold rolled steel coil yuav tsum ua kom tiav tom qab annealing, suav nrog lub taub hau txiav, txiav txiav, ntug txiav, theem, theem, rov qab, lossis longitudinal shear phaj. Cov khoom siv txias txias yog siv dav hauv kev tsim tsheb, khoom siv hauv tsev, ntsuas ntsuas, kev tsim kho, rooj tog hauv chaw ua haujlwm thiab lwm yam lag luam. Qhov hnyav ntawm txhua pob ntawm cov hlau phaj yog 3 ~ 5 tons. Qhov hnyav ntawm flattening kauj yog feem ntau 3 ~ 10 tons / kauj. Sab hauv txoj kab uas hla ntawm steel kauj yog 610mm.
Cov yeeb nkab kub dov siv cov nruam casting slab los yog tawg slab ua raw khoom, uas yog rhuab los ntawm stepping cua sov rauv thiab descaled los ntawm high-pressure dej ua ntej nkag mus rau hauv lub roughing zeb. Cov khoom siv roughing nkag mus rau hauv lub tshuab tiav tom qab txiav lub taub hau, tus Tsov tus tw thiab tom qab ntawd nkag mus rau hauv lub tshuab ua tiav rau lub tshuab computer-tswj dov. Tom qab qhov kawg dov, nws yog dov rau hauv cov plaub hau ncaj los ntawm laminar txias thiab coiler. Lub taub hau thiab tus Tsov tus tw ntawm cov plaub hau ncaj curl feem ntau yog tus nplaig zoo li tus nplaig thiab ntses tail zoo li tus, nrog cov neeg tsis zoo ntawm cov tuab thiab dav, thiab feem ntau muaj qhov tsis xws luag xws li yoj duab, hem, ntauwd duab thiab lwm yam. Lub coil hnyav yog hnyav thiab lub puab txoj kab uas hla ntawm lub steel kauj yog 760mm (feem ntau, cov yeeb nkab kev lag luam nyiam siv nws.) Tom qab cov plaub hau ncaj yog tiav los ntawm lub taub hau txiav, Tail txiav, ntug txiav, multi pass straightening, leveling thiab lwm cov xov xov, nws yog ces txiav los yog rewound los ua kub dov steel phaj, tiaj kub dov steel kauj, longitudinal txiav siv thiab lwm yam khoom. Qhov kub-dov xov coil yuav dhau los ua kub dov pickling coil yog tias cov nplai oxide raug tshem tawm los ntawm pickling thiab coated nrog roj. Cov khoom lag luam muaj qhov nyiam los hloov ib nrab ntawm cov yeeb nkab txias-kuav los tiag, nrog tus nqi nruab nrab, thiab tau hlub los ntawm cov neeg siv feem ntau.
