Tsis ntev los no, ib pawg tshiab ntawmDIN 2391 St52 txias-kos precision seamless hlau rajrau Is Nrias teb tau ua tiav lawm. Ua ntej xa khoom,Botop Hlautau ua qhov kev tshuaj xyuas nruj me ntsis kom ntseeg tau tias cov khoom ua tau raws li cov neeg siv khoom cov kev xav tau thiab cov qauv raug (cov duab ntawm kev tshuaj xyuas tau txuas rau thaum kawg ntawm tsab xov xwm).
Cov kav hlau precision yog cov kav hlau uas muaj qhov ntev nruj thiab qhov zoo ntawm qhov chaw, uas siv dav hauv cov khoom siv hydraulic, pneumatic systems, automotive parts thiab lwm yam kev siv uas xav tau qhov tseeb siab.
Cov qauv siv feem ntau rau cov kav hlau precision seamless suav nrogDIN 2391, EN 10305-1, thiabGB/T 3639Ntawm lawv, DIN 2391 St52 yog qib siv dav dav, paub txog nws cov khoom siv kho tshuab zoo thiab kev siv tshuab zoo heev.
Kev xa khoom yog ib qho tseem ceeb uas cuam tshuam rau kev ua haujlwm ntawm cov kav hlau precision, vim nws cuam tshuam txog cov txheej txheem kho cua sov sib txawv siv rau cov kav dej.
| DIN 2391 | EN 10305-1 thiab GB/T 3639 | Lub Npe | Kev piav qhia |
| BK | +C | Txias tiav lawm (nyuaj) | Cov raj tsis raug kho cua sov tom qab qhov kawg txias tsim thiab, yog li, muaj kev tiv thaiv siab rau deformation. |
| BKW | +LC | Txias tiav lawm (mos) | Kev kho cua sov kawg yog ua raws li kev kos duab txias uas muaj kev hloov pauv tsawg. Kev ua tiav ntxiv kom tsim nyog tso cai rau qee qib ntawm kev tsim txias (piv txwv li khoov nthuav dav). |
| BKS | +SR | Txias tiav lawm thiab txo kev ntxhov siab | Kev kho cua sov yog siv tom qab cov txheej txheem tsim khoom txias kawg. Nyob rau hauv cov xwm txheej ua haujlwm tsim nyog, qhov nce ntawm cov kev ntxhov siab seem uas koom nrog ua rau ob qho tib si tsim thiab ua haujlwm rau qee qib. |
| GBK | +A | Annealed | Cov txheej txheem tsim khoom txias kawg yog ua raws li kev annealing hauv huab cua tswj tau. |
| NBK | +N | Ua kom zoo li qub | Cov txheej txheem tsim txias kawg yog ua raws li kev annealing saum toj no qhov chaw hloov pauv sab saud hauv huab cua tswj tau. |
Cov raj BK (+C) thiab BKW (+LC) tsuas yog ua haujlwm txias xwb thiab tsis tas yuav kho cua sov, thaum BKS (+SR), GBK (+A), thiab NBK (+N) xav tau cov txheej txheem kho cua sov tom qab ua haujlwm txias.
Rau qhov kev txiav txim no, tus neeg siv khoom xav tau DIN 2391 St52 precision seamless tubes hauv BK mob. Cov khoom siv ntawm St52 hauv cov xeev xa khoom sib txawv tau piav qhia ntxiv hauv qab no.
| Qib hlau | Cov tshuaj lom neeg muaj pes tsawg leeg hauv% los ntawm pawg | ||||
| C | Si | Mn | P | S | |
| DIN 2391 St52 | 0.22 siab tshaj | 0.55 siab tshaj | siab tshaj 1.60 | 0.025 siab tshaj | 0.025 siab tshaj |
| Cov xwm txheej kawg ntawm kev muab khoom | Lub zog tensile Rm | Lub Zog Tawm ReH | Kev ncab A5 |
| BK | Yam tsawg kawg nkaus 640 Mpa | — | Yam tsawg kawg nkaus 4% |
| BKW | Yam tsawg kawg nkaus 580 Mpa | — | Yam tsawg kawg nkaus 7% |
| BKS | Yam tsawg kawg nkaus 580 Mpa | Yam tsawg kawg nkaus 420 Mpa | Yam tsawg kawg nkaus 10% |
| GBK | Yam tsawg kawg nkaus 490 Mpa | — | Yam tsawg kawg nkaus 22% |
| NBK | 490 – 630 Mpa | Yam tsawg kawg nkaus 355 Mpa | Yam tsawg kawg nkaus 22% |
Daim ntawv xaj no muaj ntau yam kev qhia tshwj xeeb, lub sijhawm no peb tab tom qhia cov lus qhia ntawm lub raj nrog OD 100mm × ID 80mm. Raws li DIN 2391, qhov kev kam rau siab ntawm OD thiab ID rau cov lus qhia no yog ± 0.45 hli, tab sis hauv qhov no, tus neeg siv khoom xav tau qib siab dua ntawm qhov tseeb thiab teev qhov kev kam rau siab ntawm ± 0.2 hli. Txhawm rau kom tau raws li cov neeg siv khoom xav tau, Botop Steel tau tshwj xeeb tshaj yog qhov kev tswj hwm ntawm qhov tseeb ntawm cov khoom no, thiab tshuaj xyuas txhua lub yeeb nkab hlau ib qho los ntawm ib qho ua ntej xa khoom kom ntseeg tau tias txhua qhov kev xav tau raug ua tiav.
Qee cov duab tshuaj xyuas tiag tiag tau muab txuas rau hauv qab no:
Kev Tshuaj Xyuas Sab Nraud (OD: 80 ± 0.2 hli)
Kev Tshuaj Xyuas Sab Hauv (ID: 80 ± 0.2 hli)
Kev Tshuaj Xyuas Ntev
Botop tau koom nrog kev lag luam yeeb nkab hlau tau ntau xyoo, thiab nws txoj kev hais kom zoo thiab lub koob npe zoo tau yeej kev ntseeg siab ntawm cov neeg siv khoom thiab kev lees paub ntawm kev ua lag luam. Los ntawm kev koom tes nrog cov neeg siv khoom, lub tuam txhab txuas ntxiv txhim kho nws cov khoom thiab cov kev pabcuam kom tau raws li qhov kev xav tau ntawm kev ua lag luam uas hloov pauv tas li.
Yog tias koj muaj cov yeeb nkab hlau xav tau, koj tuaj yeem tiv tauj peb, pab pawg kws tshaj lij npaj txhij los pab koj.
Lub sijhawm tshaj tawm: Tsib Hlis-09-2025