Mechanical Tubing yog dab tsi?
Mechanical tubing yog lub raj tsim los ua kom tau raws li qhov kawg - siv cov kev xav tau ntau dua li qhov ntsuas siab. Nws yog tsim los tswj qhov ntev, kam rau ua thiab tshuaj muaj pes tsawg leeg, uas ua rau muaj kev ua haujlwm zoo ib yam thoob plaws tag nrho cov raj piv nrog cov yeeb nkab txheem. Mechanical tube tuaj yeem muab tau rau cov qauv tshwj xeeb ntawm kev thov, tab sis feem ntau nws yog tsim los rau cov khoom raug tsom rau lub zog tawm los, kev ua haujlwm thiab qhov chaw tiav rau daim ntawv thov.
Hom thiab Kev Tswj Cov Qauv
| Hom | Tus Neeg Sawv Cev Standard |
|---|---|
| Seamless mechanical tubing | ASTM A519 Cov Lus Qhia Tshwj Xeeb |
| DOM (kos dhau mandrel) tubing | ASTM A513 T5 |
| ERW mechanical tubing | ASTM A513 T1 / T2 |
| Tubing qauv / HSS | ASTM A500 1 |
| Precision steel tubes | EN 10305, DIN 2391, GB / T 3639 |
| Carbon steel tubes rau machinery | JIS G3445 |
Feem ntau qhov loj me rau cov tshuab raj yog sab nraud ntawm 10.3 hli mus rau 762 hli, phab ntsa tuab ntawm 6 hli txog 35 hli, thiab qhov ntev ntawm 5.8 m, 6 m, 11.8 m lossis 12 m. Kev xaiv tus qauv thiab qib nyob ntawm daim ntawv thov: cov qauv dav dav thiab cov txheej txheem, kev tsim kho, tshuab, tsheb thauj mus los, aviation thiab roj av.
Chemical Composition thiab Mechanical Properties
Cov lus hauv qab no qhia txog qhov tseem ceeb rau cov qib carbon steel mechanical tube qib.
| Txuj | Qib | C (%) | Si (%) | Mn (%) | P (%) | S (%) | Tensile (MPa) | Tawm tswv yim (MPa) | Elongation (%) |
|---|---|---|---|---|---|---|---|---|---|
| TIAB SA 1629 | St37 | 0.17 max | - | - | 0.040 max | 0.040 max | 350 - 480 | 235 nqi | 25 feeb |
| TIAB SA 1629 | St44 | 0.21 max | - | - | 0.040 max | 0.040 max | 420 - 550 | 275 nqi | 21 feeb |
| TIAB SA 1629 | St52 | 0.22 max | 0.55 max | 1.60 max | 0.040 max | 0.035 max | 500 - 650 | 355 nqi | 21 feeb |
Rau European cov qauv thiab kev siv tshuab, DIN 1629 qib tam sim no feem ntau teev raws li EN 10210 lossis EN 10297, qhov twg St37, St44 thiab St52 sib haum rau S235, S275 thiab S355.
Dimensional Tolerances
Mechanical tube tolerances yog txhais rau ob qho tib si txias-kos thiab kub- cov khoom tiav. Txias-kos seamless raj muab nruj dua sab nraud txoj kab uas hla thiab phab ntsa thickness tswj:
| Qhov xwm txheej | OD Tolerance | Phab ntsa Thickness kam rau ua |
|---|---|---|
| Txias-kos, OD mus txog 1.699 nyob rau hauv. | +/- 0.005 hauv. | +/- 10% (ID hauv qab 1.5 nti) |
| Txias-kos, OD 1.700 - 2.099 hauv. | +/- 0.006 hauv. | +/- 10% (ID hauv qab 1.5 nti) |
| Txias-kos, OD 2.100 - 2.499 hauv. | +/- 0.007 hauv. | +/- 10% (ID 1.5 nti thiab tshaj) |
| Kub-ua tiav, OD 2.000 - 2.499 hauv. | +/- 0.017 hauv. | +/- 10% rau 12.5% nyob ntawm OD |
Phab ntsa thickness kam rau ua rau lub tshuab raj feem ntau yog qhia raws li feem pua ntawm cov phab ntsa nominal, nrog cov nqi nruj dua rau nyias - cov khoom siv phab ntsa thiab cov nqi xoob siab tshaj 25% ntawm sab nraud txoj kab uas hla. Cov khoom quenched thiab tempered yog ua ke OD thiab ID tolerances kom muaj kev cuam tshuam kev cuam tshuam los ntawm kev kho cua sov. Thaum ib qhov project xav tau kev zam nruj heev, DOM (kos hla mandrel) raj yog qhov kev xaiv ib txwm vim nws tswj ob sab hauv thiab sab nraud.
Kev siv ntawm Mechanical Tubing
Kev siv tshuab thiab khoom siv
Hnub ci racking thiab mounting systems.
Agricultural thiab khoom siv mis nyuj.
Tsev cog khoom vaj tse thiab khoom siv.
Conveyor rollers, trailers thiab carports.
Cov khoom siv, canopies thiab ntxoov ntxoo.
Satellite phaj txhawb thiab vinyl stiffening hlab.
Cov qauv siv
Tubing qauv, feem ntau hu ua hollow structural sections (HSS), yog siv qhov twg tus qauv yuav tsum muaj zog ntawm lub raj dictate daim ntawv thov. HSS muaj nyob rau hauv cov duab puag ncig, square thiab duab plaub thiab siv rau hauv cov tsev, txuas hniav, yees, cranes, kos npe rau kev txhawb nqa thiab ncej, offshore ntau lawm thiab drilling platforms, thiab yob- dhau cov qauv tiv thaiv (ROPS).
Nyob rau hauv cov tsev siab, lub raj system yog ib lub tswv yim tsim nyob rau hauv uas lub tsev tiv thaiv lateral loads xws li cua thiab seismic rog los ntawm kev ua raws li ib tug hollow cylinder cantilevered los ntawm hauv av. Lub kaw lus tuaj yeem tsim hauv cov hlau, pob zeb lossis cov khoom siv sib xyaw, thiab feem ntau cov tsev siab tshaj 40 cov dab neeg tsim txij li xyoo 1960s siv hom qauv no.
FAQ
Q1. Dab tsi yog qhov txawv ntawm mechanical tubing thiab yeeb nkab?
Mechanical tubing yog tsim los ua kom tau raws li qhov kawg - siv cov kev xav tau xws li lub zog tawm los, kev ua haujlwm, kev ua tiav ntawm qhov chaw thiab kev ua haujlwm nruj, thaum cov yeeb nkab feem ntau ua rau cov qauv siab thiab qhov ntev ntawm cov dej xa tawm.
Q2. DOM tubing yog dab tsi?
DOM (daws hla mandrel) tubing txias - kos ERW tubing rau ASTM A513 T5. Kos hla lub mandrel tswj ob sab hauv thiab sab nraud txoj kab uas hla, muab nruj heev tolerances thiab ib tug du bore.
Q3. Dab tsi cov qauv npog seamless mechanical tubing?
ASTM A519 npog seamless carbon thiab alloy steel mechanical tubing. Precision seamless raj kuj tau them los ntawm EN 10305, DIN 2391 thiab GB / T 3639.
Q4. Dab tsi yog qhov txawv ntawm ASTM A513 thiab A519?
ASTM A513 npog hluav taws xob tsis kam welded (ERW) cov tshuab raj, suav nrog DOM T5, thaum ASTM A519 npog seamless mechanical tubing. Ob leeg txhais tolerances thiab cov khoom rau kev siv tshuab.
Q5. HSS structural tubing yog dab tsi?
Hollow structural seem yog cov qauv raj tsim los rau cov qauv xws li ASTM A500, muaj nyob rau hauv round, square thiab rectangular shapes rau cov tsev, txuas hniav, yees thiab machinery thav duab.
Q6. Vim li cas kev kam rau siab yog qhov tseem ceeb hauv mechanical tubing?
Machinery Cheebtsam yog machined los ntawm lub raj los yog sib sau ua ke rau hauv lub tshuab uas muaj qhov sib xws qhov ntev. Tight OD, ID thiab phab ntsa tolerances txo cov seem, ua kom yooj yim sib dhos thiab ua kom paub tseeb tias kev ua tau zoo.
q7 ua. Cov qib dab tsi feem ntau siv rau cov tshuab raj?
Cov pa roj carbon ntau muaj xws li 1026 thiab 1010-1020 series raws li ASTM A513 / A519, St37 / St44 / St52 nyob rau hauv DIN 1629, thiab S235 / S275 / S355 tsim raws li EN 10210/10297.
