Honed Tube

Cov txheej txheem ntau lawm ntawm Precision av Steel Tubes: Los ntawm kev tsim khoom mus rau ntim

Precision av steel hlab yog cov khoom tseem ceeb hauv siab -kawg tshuab thiab hydraulic tshuab, paub txog lawv qhov tshwj xeeb qhov tseeb qhov tseeb thiab du nto. Nov yog qhov yooj yim ntawm lawv txoj kev taug kev, los ntawm cov khoom siv raw mus rau qhov kawg ntim:

1. Kev npaj cov khoom nyoos

1.1 Pipe Blank Xaiv:
Kub- dov los yog txias - dov seamless steel raj raug xaiv los ua raw khoom. Cov ntaub ntawv uas muaj xws li carbon steel, alloy steel, los yog stainless hlau, tag nrho cov nruj soj ntsuam rau cov tshuaj muaj pes tsawg leeg thiab txhua yam khoom kom ntseeg tau tias uniformity thiab defects -cov qauv dawb.

2. Kev sib sau: Kub Rolling vs. Cold Rolling

2.1 Kub Rolling:
Cov yeeb nkab dawb yog rhuab mus rau kwv yees li 1200℃kom nws tuaj yeem yooj yim. Lub tshuab tho lub tshuab tsim ib lub raj hollow, uas yog tom qab ntawd zoo li tus dov tsis tu ncua.
Pros: Nqi -zoo rau loj- teev ntau lawm.
Cons: Ua ib txheej oxide tuab uas yuav tsum tau tshem tawm tom qab.

2.2 Cold Rolling:
Ua nyob rau hauv chav tsev kub, cov txheej txheem no txo ​​cov phab ntsa thickness thiab calibrates qhov ntev, zoo tagnrho rau nyias -walled, siab - cov hlab ntsha precision.
Pros: Superior nto tiav thiab nruj dua tolerances.
Cons: Tus nqi siab dua thiab cov kauj ruam nruab nrab annealing feem ntau xav tau.

3. Kev kho cua sov

Txhawm rau txhim kho cov khoom siv kho tshuab thiab txo cov kev ntxhov siab sab hauv los ntawm dov, cov kav dej tau siv:

3.3 Annealing/Normalizing: Cua sov rau 800-900℃(rau carbon steel) ua raws li kev tswj kom txias. Qhov no refines lub microstructure thiab txhim kho durability.

4. Ncaj nraim

Multi-cov menyuam ncaj tshuab khoov khoov lossis warps, kom ntseeg tau qhov ncaj (tsawg dua lossis sib npaug ntawm 1.5mm / m sib txawv). Kev sib raug zoo ntawm rollers thiab kev teeb tsa siab yog qhov tseem ceeb rau kev sib xws.

5. Precision sib tsoo (Core txheej txheem)

5.1 Sab nrauv sib tsoo:
Lub tshuab sib tsoo centerless lossis cylindrical grinder polishes txheej txheej. Lub grit loj ntawm kev sib tsoo log (80-320 mesh) txiav txim siab qhov roughness (Ra 0.4-1.6 μm). Tolerances yog khaws cia nyob rau hauv ± 0.02mm rau txoj kab uas hla thiab Tsawg dua los yog sib npaug rau 0.01mm rau ovality.

5.2 Internal sib tsoo:
Rau cov ntawv thov xws li hydraulic thooj voos kheej kheej, sab hauv grinders los yog honing tshuab ua tiav ultra-cov npoo sab hauv du (Ra Tsawg dua lossis sib npaug li 0.2 μm). Cov txheej txheem tshwj xeeb tiv thaiv kev vibrations hauv cov raj ntev, kom tsis txhob muaj qhov tsis zoo.

6. Txiav thiab Chamfering

6.1 Precision Txiav: Band saws lossis laser cutters kom huv si, txiav txiav (kev sib txawv Tsawg dua lossis sib npaug li 0.1 degree). Burrs raug tshem tawm mus rau qhov siab tsawg dua lossis sib npaug li 0.05mm.

6.2 Chamfering: Ntug yog smoothed mechanically los tiv thaiv kev puas tsuaj thaum sib dhos.

7. Kev Tswj Xyuas Zoo

7.1 Dimensional Checks: Coordinate measuring machines (CMMs) xyuas cov kab sab nraud, phab ntsa thickness, thiab ncaj. Sab hauv txoj kab uas hla yog kuaj nrog cov ntsuas cua los yog ntsaws ntsuas.

7.2 Kev Ntsuam Xyuas Qhov Nto: Cov kev kuaj pom pom thiab cov khoom siv roughness (piv txwv li, Taylor Hobson) ntes khawb, tawg, lossis lub qhov.

7.3 Tsis yog-Kev Ntsuam Xyuas Kev Puas Tsuaj (NDT):

Kev kuaj Ultrasonic: Txheeb xyuas cov kab nrib pleb sab hauv lossis kev suav nrog.

Eddy Kev Xeem Tam Sim No: Cov ntxaij vab tshaus rau qhov tsis xws luag.

7.4 Kev Ntsuas Siab: Cov raj tuaj yeem tiv taus 1.5 × ua haujlwm siab rau 30 feeb yam tsis muaj qhov xau.

8. Kev kho deg thiab tiv thaiv -Corrosion

8.1 Sandblasting / Polishing: Txhim kho qhov zoo nkauj lossis npaj cov chaw rau txheej txheej.

8.2 Phosphating / Galvanizing: Ntxiv corrosion{1}}cov khaubncaws sab nraud povtseg (5-15 μm tuab).

8.3 Tiv thaiv xeb: luv-lub sij hawm tiv thaiv siv los tiv thaiv- xeb roj; ntev -lub sij hawm cia siv VCI (vapor corrosion inhibitor) ntawv.

9. Ntim thiab Shipping

9.1 Kev Tiv Thaiv Kev Tiv Thaiv: Cov raj ntawm tus kheej yog qhwv hauv PE zaj duab xis. Ntau lub raj tau ntim rau hauv cov ntoo crates lossis steel thav duab nrog cov dej noo- cov ntaub ntawv pov thawj. Tube kawg yog capped tiv thaiv kev puas tsuaj.

9.2 Labeling: Laser markings qhia cov khoom qib, qhov ntev, batch tooj, thiab cov qauv (xws li ASTM A519).

9.3 Kev Thauj Mus Los: Kev cai racks hauv cov thawv thauj khoom tiv thaiv deformation thaum caij tsheb thauj mus los.