DIN 2391 igwe anaghị agba nchara bụ ọkpọkọ nchara dị elu nke a na-edozi site na ntụgharị oyi ma ọ bụ eserese oyi;Aha zuru oke: Oyi akpọrepu ma ọ bụ oyi adọta nkenke nchara nchara na-enweghị ntụpọ.N'ihi uru nke ọ dịghị oxide oyi akwa na n'ime na mpụta mgbidi nke nkenke enweghị nkebi ígwè ọkpọkọ, ọ dịghị ntapu n'okpuru elu mgbali, elu nkenke, elu ire ụtọ, ọ dịghị deformation n'oge oyi ekwe ekwe, flaring, flattening, na ọ dịghị cracks, ha na-tumadi-eji. iji mepụta ngwaahịa maka ihe pneumatic ma ọ bụ hydraulic.
DIN 2391 Steel pipe ọkwa na ihe mejupụtara kemịkalụ
| Ọkwa ígwè | Ngwakọta kemịkalụ (%) | ||||
| Aha igwe | C max | Si max | Mn | P max | S max |
| St 35 | 0.17 | 0.35 | ≥0.40 | 0.025 | 0.025 |
| St 45 | 0.21 | 0.35 | ≥0.40 | 0.025 | 0.025 |
| St 52 | 0.22 | 0.55 | ≤1.60 | 0.025 | 0.025 |
DIN 2391 Steel pipe Mechanical Njirimara
| Igwe igwe Ọkwa | BK | BKW | BKS | GBK | NBK | |||||||
| Rm N/mm min | A% min | Rm N/mm min | A% min | Rm N/mm min | ReH N/mm min | A% min | Rm N/mm min | A% min | Rm N/mm min | ReH N/mm min | A% min | |
| St35 | 480 | 6 | 420 | 10 | 420 | 315 | 14 | 315 | 25 | 340-470 | 235 | 25 |
| St45 | 580 | 5 | 520 | 8 | 520 | 375 | 12 | 390 | 21 | 440-570 | 255 | 21 |
| St52 | 640 | 4 | 580 | 7 | 580 | 420 | 10 | 490 | 22 | 490-630 | 355 | 22 |
Din2391 nnyefe ọnọdụ
| Nhọpụta | Akara | Nkọwa |
| Oyi agwụla (ike) | BK(+C) | Tubes anaghị anabata ọgwụgwọ okpomọkụ na-esochi oyi ikpeazụ na-akpụ ma, si otú a, nwere nnukwu nguzogide nrụrụ |
| Oyi mechara (dị nro) | BKW | A na-esote ọgwụgwọ okpomọkụ ikpeazụ site na eserese oyi gụnyere oke nrụrụ.Nhazi n'ihu n'ihu kwesịrị ekwesị na-enye ohere ka oyi na-akpụ akpụ (dịka ọmụmaatụ ịgbado, ịgbasa) |
| (+ LC) | ||
| Oyi agwụla ma belata nrụgide | BKS(+SR) | A na-etinye ọgwụgwọ okpomọkụ na-eso usoro nhazi oyi ikpeazụ.N'okpuru ọnọdụ nhazi kwesịrị ekwesị, mmụba nke nrụgide ndị fọdụrụnụ na-enyere aka ịmepụta na machining ruo n'ókè ụfọdụ. |
| Anneeded | GBK(+A) | Usoro nhazi oyi ikpeazụ na-esote site na ịkagbu n'ime ikuku a na-achịkwa. |
| Haziri ahazi | NBK(+N) | Usoro nhazi oyi ikpeazụ na-esote site n'ịkwụsị n'elu ebe mgbanwe elu na ikuku na-achịkwa. |
Mepụta Usoro na uru
Ngwongwo billet igwe, mgbe eserese nkenke, oxidation free and bright heat treatment (NBK state), ule na-adịghị emebi emebi, nrụgide dị elu na pickling acid nke oghere dị n'ime nke ọkpọkọ ígwè, ọgwụgwọ mmanụ nchara maka mgbidi ime na mpụta. nke ọkpọkọ ígwè, na ọgwụgwọ mgbochi uzuzu maka nsọtụ abụọ nke mkpuchi ahụ.
1. Th n'ime na n'èzí mgbidi nke ígwè ọkpọkọ enweghị oxide oyi akwa;
2.Withstand elu mgbali, ọ dịghị ntapu, elu nkenke, elu ire ụtọ;
3. Ntugharị oyi na-enweghị nrụrụ, mgbasawanye, na-adaba na-enweghị mgbawa;
4. ọgwụgwọ mgbochi nchara nchara.
DIN 2391 enweghị nkebi ígwè ọkpọkọ Ngwa
Usoro hydraulic, igwe na-akpụzi injection, igwe hydraulic, ụgbọ mmiri ụgbọ mmiri, igwe ọkụ ọkụ EVA, igwe nchara maka igwe hydraulic ziri ezi, igwe na-akpụ akpụ akpụkpọ ụkwụ, akụrụngwa hydraulic, ọkpọkọ mmanụ dị elu, ọkpọkọ mmanụ hydraulic, nkwonkwo ferrule, nkwonkwo ígwè, igwe rọba , Igwe eji aru aru, igwe nkedo anwụ, igwe injinia, igwe nchara siri ike maka gwongworo mgbapụta, ugbo ala idebe ihe, ulo oru ugbo ala, ulo oru ụgbọ mmiri.Injin mmanụ dizel, injin combustion n'ime, ikuku compressor, igwe ihe owuwu, igwe ọrụ ugbo na nke oke ọhịa, wdg, nwere nkwonkwo ọkpọkọ igwe, nkwonkwo aka aka, na ọkpọkọ mmanụ dị elu.
Oge nzipu: Mee-18-2023