Ob Txoj Kev Ua tiav rau Ib Yam Khoom
Seamless steel yeeb nkab pib tib txoj kev nyob rau hauv ob qho tib si: ib tug khoom round billet yog rhuab thiab pierced rau hauv lub plhaub hollow, ces elongated thiab loj. Cov diav rawg hauv txoj kev tuaj tom qab tho. Kub- cov yeeb nkab tiav tiav tag nrho nws cov deformation saum toj no qhov kub thiab txias recrystallization thiab xa tuaj raws li - dov los yog normalized. Txias- cov yeeb nkab tau txias tom qab ua haujlwm kub, tom qab ntawd rub los ntawm kev tuag hla lub mandrel ntawm chav tsev kub kom txo tau txoj kab uas hla thiab phab ntsa thiab txhim kho qhov chaw thiab qhov kam rau ua.
Qhov kev xaiv ntawm ob tsis yog hais txog qhov twg zoo dua tab sis hais txog qhov uas haum rau daim ntawv thov: ASTM A106 thiab A53 rau kub- ua tiav kev pabcuam, ASTM A179 thiab A333 rau txias- rub tawm cov cua sov thiab qis- kub lub luag haujlwm, GB / T 8163 rau kev pabcuam dej dav dav thiab GB / T 363 tube.
Cov kauj ruam ntau lawm muab piv
| Theem | Kub- dov | Txias- tau kos |
|---|---|---|
| Billet npaj | Nruam cam khwb cia puag ncig billet, tshuaj xyuas | Ib yam |
| Cua sov | Rotary hearth los yog taug kev beam rauv | Ib yam |
| Piercing | Rotary piercer tsim lub plhaub hollow | Ib yam |
| Elongation | Plug zeb, mandrel zeb los yog hla- yob zeb | Ib yam |
| Qhov loj me | Stretch txo zeb mus rau qhov kawg loj | Kub qhov loj me, ces txias |
| Ua haujlwm txias | Tsis siv | Tuag kos hla lub mandrel, ib los yog ntau dua hla |
| Ua tiav | Ncaj, txiav, kuaj | Annealing los yog kev ntxhov siab nyem ntawm kev hla, ncaj, kuaj |
Cov kauj ruam tho qhov tsim nyog mloog. Lub rotary piercer nrog ob lub kaum ntse ntse yob thiab lub ntsaws hloov pauv cov khoom siv hluav taws xob kub kub rau hauv qhov khoob khoob hauv ib qho kev ua haujlwm tas mus li. Cov teeb meem uas tau qhia ntawm no, xws li kev tawm ntawm - nruab nrab bore lossis cov kua muag sab hauv, tsis tuaj yeem kho tau los ntawm kev dov tom qab, uas yog vim li cas billet zoo yog thawj qhov chaw soj ntsuam hauv cov yeeb nkab tsis sib haum.
Qhov tseem ceeb sib txawv ntawm ib saib
| Khoom | Kub- dov, kub- tiav | Txias- tau kos |
|---|---|---|
| Hom OD ntau yam | 21.3-660 hli thiab siab dua | 6 mus rau 168 hli, feem ntau hauv qab 114 hli |
| Phab ntsa thickness | 2.0 mus rau 60 mm, tuab phab ntsa niaj hnub | 0.5 mus rau 12 mm, nyias phab ntsa meej |
| Nto tiav | Mill nplai, rougher, Ra feem ntau 6.3 txog 12.5 micrometers | du thiab ci, Ra feem ntau 0.8 txog 1.6 micrometers |
| Dimensional kam rau ua | Dav, piv txwv li ntxiv lossis rho tawm 10% ntawm phab ntsa | Tighter, ntxiv lossis rho tawm 5% ntawm phab ntsa lossis zoo dua rau cov qib precision |
| Lub zog | Raws li - dov los yog normalized zog | Ua haujlwm- tawv tawv los ntawm kev kos duab, lossis annealed rau machinability |
| Tus nqi txheeb ze | qis | Siab dua, vim muaj kev hla dhau thiab ua tiav |
| Hom qauv | ASTM A106, A53, API 5L, GB / T 8163 | ASTM A179, A333, A519, GB / T3639 |
Thaum twg los xaiv Kub -Rolled Seamless Pipe
Xaiv kub- cov yeeb nkab tiav thaum cov kev pabcuam xav tau cov kab loj loj, cov phab ntsa tuab lossis tus nqi qis: cov pa tseem ceeb thiab cov txheej txheem kab saum toj no DN 100, cov kab ke, kab yeeb nkab, thiab kev pabcuam dej dav dav rau GB / T 8163 lossis ASTM A106. Qhov saum npoo rougher thiab dav dua qhov kev zam tsis cuam tshuam rau hauv cov ntawv thov no vim tias cov yeeb nkab yog welded rau hauv cov tshuab uas qhov chaw saum npoo tsis tseem ceeb.
Thaum Xaiv Txias -Drawn Seamless Pipe
Xaiv qhov txias- kos thaum raug thiab nto teeb meem ntau tshaj li tus nqi: kub exchanger thiab condenser raj rau ASTM A179, qis- qhov kev pab kub ntawm qhov me me rau ASTM A333 Qib 6, hydraulic thooj voos kheej kheej, ntsuas kab thiab precision mechanical tubes rau GB / T 3639, qhov chaw ncaj qha rau ntawm lub tshuab ua haujlwm thiab cov tshuab ua haujlwm nruj. Rau precision mechanical tubing, phab ntsa thickness eccentricity, variation ntawm phab ntsa nyob ib ncig ntawm lub circumference, yog tswj nruj heev vim hais tias nws ua rau uneven kev nyuaj siab thiab imbalance nyob rau hauv rotating qhov chaw.
Kev Ua Zoo thiab Kev Xeem: Yuav Thov Li Cas
Ob txoj kev raug sim ua ntej xa khoom. Rau cov kua dej- kev pabcuam cov yeeb nkab rau GB / T 8163, txhua lub yeeb nkab yog kuaj hydrostatically, lossis 100% ntawm qhov ntev yog tshuaj xyuas los ntawm ultrasonic, eddy tam sim no lossis sib nqus flux los kuaj ua lwm txoj hauv kev. Qhov chaw tsis xws luag los tshuaj xyuas yog seams, laps, slivers thiab pits, uas tuaj yeem los ntawm qhov tsis xws luag lossis los ntawm kev tho thiab dov; kev soj ntsuam pom thiab dye penetrant kuaj ntes lawv ntawm qhov chaw tiav. Nyob rau ntawm kev yuav khoom, qhia tus qauv, qib, qhov loj, qhov kev kho cua sov, txoj kev xeem thiab cov ntawv pov thawj uas yuav tsum tau, thiab nug rau daim ntawv pov thawj zeb xeem uas qhia txog cov cua sov, chemistry thiab cov khoom siv tshuab.
FAQ
Q1: Dab tsi yog qhov txawv ntawm qhov kub - dov thiab txias - kos seamless yeeb nkab?
Qhov kub thiab txias thiab qhov ntxiv daim duab dhau. Kub- cov yeeb nkab dov ua tiav nws qhov deformation saum qhov kub ntawm recrystallization; txias- cov yeeb nkab kos yog kos rau ntawm chav tsev kub tom qab ua haujlwm kub, uas txhim kho qhov chaw tiav, qhov tseeb qhov tseeb thiab lub zog me me.
Q2: Lub hom phiaj ntawm cov kauj ruam tho yog dab tsi?
Piercing yog thawj kauj ruam nyob rau hauv uas ib tug rhuab puag ncig billet yog hloov mus rau hauv lub hollow plhaub siv ib tug teb piercer. Lub plhaub yog ces elongated thiab loj rau hauv cov yeeb nkab kawg.
Q3: Dab tsi tsis yog - kev kuaj kev puas tsuaj GB / T 8163 xav tau rau cov kua dej - kev pabcuam seamless yeeb nkab?
Txhua cov yeeb nkab yuav tsum xeem dhau qhov ntsuas hydrostatic, lossis hloov pauv 100% ntawm cov yeeb nkab ntev yuav tsum tau kuaj xyuas los ntawm ultrasonic, eddy tam sim no lossis sib nqus flux to testing.
Q4: Dab tsi yog qhov tsis xws luag hauv cov yeeb nkab seamless thiab lawv ua li cas?
Seams, laps, slivers thiab pits. Lawv tshwm sim los ntawm qhov tsis xws luag xws li cov kab nrib pleb thiab suav nrog, lossis raug qhia thaum dov thiab tho, piv txwv li overfills thiab cov cim cim. Kev tshuaj xyuas qhov muag, dye penetrant testing thiab electromagnetic test yog siv los kuaj xyuas.
Q5: Dab tsi yog phab ntsa thickness eccentricity thiab vim li cas nws tseem ceeb?
Eccentricity yog qhov tsis sib xws ntawm phab ntsa thickness nyob ib ncig ntawm lub voj voog. Ntau dhau eccentricity ua rau tsis sib npaug ntawm kev ntxhov siab, teeb meem machining thiab qhov tsis sib xws hauv kev sib hloov, yog li nws tau nruj tswj hwm hauv qhov txias txias - kos cov raj precision.
Q6: Puas yog txias-kho cov yeeb nkab ib txwm muaj zog dua li kub- dov?
Kev kos duab txias ua rau cov txiaj ntsig thiab lub zog tensile los ntawm kev ua haujlwm tawv, tab sis qhov annealed los yog kev ntxhov siab -relieved condition restores ductility thiab lowers hardness for machining. Qhia meej txog qhov kev kho cua sov ntawm qhov kev txiav txim es tsis yog xav tias yog - rub lub zog.
