Muva nje, iqembu elisha le-Amashubhu ensimbi angenamthungo adonswa ngokubandayo e-DIN 2391 St52eNdiya kuqediwe ngempumelelo. Ngaphambi kokuthunyelwa,Insimbi yeBotopyenze ukuhlolwa okuqinile kobukhulu ukuqinisekisa ukuthi umkhiqizo uhlangabezana ngokugcwele nezidingo zobuchwepheshe zekhasimende kanye nezindinganiso zokunemba (izithombe zokuhlolwa zinamathiselwe ekugcineni kwendatshana).
Amashubhu ensimbi aqondile angamashubhu ensimbi anokubekezelelana okuqinile kanye nekhwalithi ephezulu yobuso, asetshenziswa kabanzi emishinini ye-hydraulic, ezinhlelweni zomoya, ezingxenyeni zezimoto nakwezinye izinhlelo zokusebenza ezidinga ukunemba okuphezulu.
Izindinganiso ezivame ukusetshenziswa zamashubhu ensimbi angenamthungo afaka phakathiI-DIN 2391, I-EN 10305-1, futhiI-GB/T 3639Phakathi kwazo, i-DIN 2391 St52 iyizinga elisetshenziswa kabanzi, elaziwa ngezakhiwo zayo ezinhle zemishini kanye nokusebenza kahle kakhulu kwemishini.
Isimo sokulethwa siyisici esibalulekile esithinta ukusebenza kwamapayipi ensimbi anembile, njengoba sihilela izinqubo ezahlukene zokwelapha ukushisa ezisetshenziswa kumapayipi.
| I-DIN 2391 | I-EN 10305-1 kanye ne-GB/T 3639 | Ukuqokwa | Incazelo |
| BK | +C | Kuqediwe kubanda (kunzima) | Amapayipi awaphathwa ngokushisa ngemva kokwakheka kokugcina kokubanda futhi, ngaleyo ndlela, amelana kakhulu nokuguquguquka. |
| I-BKW | +LC | Kuqediwe kubanda (kuthambile) | Ukwelashwa kokugcina kokushisa kulandelwa ukudweba okubandayo okubandakanya ukuguquguquka okulinganiselwe. Ukucubungula okuqhubekayo okufanele kuvumela izinga elithile lokwakheka kokubanda (isb. ukugoba kuyanda). |
| I-BKS | +SR | Kuqediwe ukubanda futhi kuncishiswe ukucindezeleka | Ukwelashwa ngokushisa kusetshenziswa ngemva kwenqubo yokugcina yokwakheka kobandayo. Kuye ngezimo zokucubungula ezifanele, ukwanda kokucindezeleka okusele okuhilelekile kwenza kokubili ukwakheka kanye nokucubungula ngezinga elithile. |
| I-GBK | +A | I-Annealed | Inqubo yokugcina yokwakheka kokushisa ilandelwa ukuncibilikisa endaweni elawulwayo. |
| I-NBK | +N | Okujwayelekile | Inqubo yokugcina yokwakheka komkhuhlane ilandelwa ukuncibilikisa ngaphezu kwendawo yokuguqula ephezulu emoyeni olawulwayo. |
Amashubhu e-BK (+C) kanye ne-BKW (+LC) asebenza ngokubandayo kuphela futhi awadingi ukwelashwa ngokushisa, kuyilapho ama-BKS (+SR), GBK (+A), kanye ne-NBK (+N) edinga inqubo yokwelashwa ngokushisa ehambisanayo ngemva kokusebenza ngokubandayo.
Kuleli oda, ikhasimende lidinga amashubhu angenamthungo e-DIN 2391 St52 anembile asesimweni se-BK. Izakhiwo zezinto ze-St52 ezimweni ezahlukene zokulethwa zichazwe ngokuningiliziwe ngezansi.
| Ibanga lensimbi | Ukwakheka kwamakhemikhali ngo-% ngobuningi | ||||
| C | Si | Mn | P | S | |
| I-DIN 2391 St52 | Ubuningi obungu-0.22 | Ubuningi obungu-0.55 | Ubuningi obungu-1.60 | Ubuningi obungu-0.025 | Ubuningi obungu-0.025 |
| Isimo Sokunikezwa Kokugcina | Amandla Okudonsa Rm | Amandla Okukhiqiza ReH | Ukwelulwa A5 |
| BK | Ubuncane be-640 Mpa | — | Ubuncane be-4% |
| I-BKW | Ubuncane be-580 Mpa | — | Ubuncane be-7% |
| I-BKS | Ubuncane be-580 Mpa | Ubuncane be-420 Mpa | Ubuncane be-10% |
| I-GBK | Ubuncane be-490 Mpa | — | Ubuncane obungu-22% |
| I-NBK | 490 – 630 Mpa | Ubuncane be-355 Mpa | Ubuncane obungu-22% |
Leli oda liqukethe imininingwane eminingana, kulokhu sibonisa imininingwane yeshubhu ene-OD 100mm × ID 80mm. Ngokusho kwe-DIN 2391, ukubekezelelana kwe-OD kanye ne-ID yale ncazelo kungu-±0.45 mm, kodwa kulokhu, ikhasimende lifune izinga eliphakeme lokunemba futhi lachaza ukubekezelelana okungu-±0.2 mm. Ukuze kuhlangatshezwane nezidingo zekhasimende, i-Botop Steel ithuthukise ngokukhethekile ukulawulwa kokunemba kobukhulu balo mkhiqizo, futhi yahlola ipayipi ngalinye lensimbi ngalinye ngaphambi kokuthunyelwa ukuqinisekisa ukuthi zonke izidingo ziyahlangatshezwana.
Ezinye zezithombe zokuhlola zangempela zinamathiselwe ngezansi:
Ukuhlolwa Kobubanzi Bangaphandle (OD: 80 ± 0.2 mm)
Ukuhlolwa Kobubanzi Bangaphakathi (ID: 80 ± 0.2 mm)
Ukuhlolwa Kobude
I-Botop ibilokhu ihileleke kakhulu embonini yamapayipi ensimbi iminyaka eminingi, futhi ukugcizelela kwayo ikhwalithi kanye nedumela elihle kuye kwazuza ukwethenjwa kwamakhasimende amaningi kanye nokuqashelwa emakethe. Ngokubambisana okuseduze namakhasimende, inkampani iqhubeka nokwenza ngcono imikhiqizo nezinsizakalo zayo ukuze ihlangabezane nezidingo zemakethe ezihlala zishintsha.
Uma unezidingo zamapayipi ensimbi, ungaxhumana nathi, ithimba lochwepheshe likulungele ukukukhonza.
Isikhathi sokuthunyelwe: Meyi-09-2025