17-4PH Ishidi Ledatha Yezinto Ezibalulekile
Izikophu
I-stainless material 17-4 PH ibonakala ngamandla okukhiqiza okuphezulu, ukumelana nokugqwala okuhle nokumelana nokugqoka okuphezulu.I-17-4 PH ingenye yezinsimbi ezibaluleke kakhulu ezingaqiniswa.Kuyefana ngokokuhlaziya ngezinto 1.4548 kanye 1.4542.
Ukusetshenziswa ebangeni lokushisa eliphansi kungenzeka nge-Condition H1150 ne-H1025.Amandla womthelela we-notched amahle kakhulu anikezwa emazingeni okushisa amancane.
Ngenxa yezakhiwo ezinhle zemishini nokumelana nokugqwala, impahla ilungele ukusetshenziswa ezindaweni zasolwandle, kodwa isengozini yokugqwala emifantwini emanzini olwandle amile.
I-17-4PH yaziwa kakhulu nge-AISI 630.
I-17-4PH yezinto ezibonakalayo isetshenziswa embonini yamakhemikhali, imboni yezinkuni, umkhakha we-offshore, ekwakheni imikhumbi, kubunjiniyela bemishini, embonini kawoyela, embonini yamaphepha, embonini yezemidlalo.Imboni yezokungcebeleka futhi njengenguqulo ephinde yancibilika (ESU) emoyeni kanye ne-Aerospace.
Uma izakhiwo zemishini kanye nokumelana nokugqwala kwezinsimbi ze-martensitic kunganele, i-17-4PH ingasetshenziswa.
17-4PH Ukulanda Ishidi Ledatha Yezinto Ezibalulekile
Izici
| Kuyasebenziseka | kuhle |
| Ukushisela | kuhle |
| Izakhiwo zemishini | kuhle kakhulu |
| Ukumelana nokugqwala | kuhle |
| Ukusebenziseka kalula | embi kuya emaphakathi |
Inzuzo
Isici esisodwa esikhethekile sento engu-17-4 PH ukufaneleka kwamazinga okushisa aphansi kanye nokusebenza okufika ku-approx.315°C.
Ukuqamba:Ukubunjwa kwempahla kwenzeka ebangeni lokushisa lika-1180 ° C kuya ku-950 ° C. Ukuqinisekisa ukucwengwa okusanhlamvu, ukupholisa ekamelweni lokushisa kwenziwa ngomoya.
Ukushisela:Ngaphambi kokuthi impahla engu-17-4 PH ingashiselwa, kufanele kucatshangelwe isimo sesisekelo sempahla.Ngefomu elizinzile, ithusi likhona endabeni.Lokhu kukhuthaza ukungaqhekeki okushisayo.
Ukuze ukwazi ukwenza izimo zokushisela ezidingekayo ziyadingeka.Ama-undercuts noma ama-welding defects angaholela ekwakhiweni kwe-notch.Lokho kufanele kugwenywe.Ukuze uvimbele ukwakheka kokuqhekeka kwengcindezi, izinto ezisetshenziswayo kufanele ziphinde zibe ngaphansi kwesixazululo sokuguga okulandelanayo phakathi nesikhathi esifushane kakhulu ngemuva kokushisela.
Uma kungekho ukwelashwa okwenziwa ngemva kokushisa, amanani e-mechanical-technology ku-weld seam kanye nendawo ethintekile ekushiseni ezintweni eziyisisekelo zingahluka kakhulu.
Ukumelana nokugqwala:lapho izakhiwo zemishini nokumelana nokugqwala kwezinsimbi ze-martensitic kunganele, i-17-4 PH ifanele ukusetshenziswa ezindaweni zasolwandle.Inenhlanganisela yezinto ezinhle kakhulu zemishini kanye nokumelana nokugqwala.
Emanzini olwandle amile, i-17-4 PH isengozini yokugqwala emifantwini.Lokhu kudinga ukuvikeleka okwengeziwe.
Ukwenza imishini:I-17-4 PH ingenziwa ngomshini esimweni esiqinile futhi esinesixazululo.Ngokuya ngobulukhuni, ukuhleleka kuyahlukahluka, lokhu kuzoxhomeka esimweni.
Ukwelashwa kokushisa
Phakathi kuka-1020°C no-1050°C into engu-17-4 PH ifakwe isixazululo.Lokhu kulandelwa ukupholisa okusheshayo - amanzi, amafutha noma umoya.Lokhu kuncike esigabeni esiphambanayo sento.
Ukuqinisekisa ukuguqulwa okuphelele kusuka ku-austenite kuya ku-martensite, impahla kumele ibe nekhono lokupholisa ekamelweni lokushisa.
Iyacubungula
| Ukupholisha | kungenzeka |
| Ukubumba okubandayo | akunakwenzeka |
| Ukucutshungulwa komumo | kungenzeka, kuye ngobulukhuni |
| Ukutshuza okubandayo | akunakwenzeka |
| Ifomu lamahhala kanye ne-drop forging | kungenzeka |
Izakhiwo Zomzimba
| Ukuminyana ku-kg/dm3 | 7,8 |
| Ukumelana nogesi ku-20°C ku-(Ω mm2)/m | 0,71 |
| Ukukwazi ukuzibuthe | etholakalayo |
| I-Thermal conductivity ku-20°C ku-W/(m K) | 16 |
| Umthamo wokushisa othize ku-20°C ku-J/(kg K) | 500 |
Bala isisindo sento edingekayo ngokushesha »
Ukwakheka kwamakhemikhali
| 17-4PH | C | Si | Mn | P | S | Cr | Mo | Ni | V |
| imiz. | bis | bis | bis | bis | bis | 15 | bis | 3 |
|
| ubuningi. | 0,07 | 0,7 | 1,0 | 0,04 | 0,03 | 17,5 | 0,6 | 5 |
|
| 17-4PH | Al | Cu | N | Nb | Ti | Sonstiges |
| imiz. |
| 3,0 |
| 5xC |
|
|
| ubuningi. |
| 5,0 |
| 0,45 |
|
|
Kukhona kusitoki
Ifulethi, ifojiwe, isixazululo sifakiwe futhi sikhishwe ngaphandle
Izinzuzo ze-saw cut
Ukucutshungulwa ngesaha kuwukucutshungulwa komshini kwezinto, okuholela ekuguquguqukeni okungahlosiwe okuphansi kakhulu nokwanda kokuqina kwesakhiwo esikhona, njengokusika okushisayo.
Ngakho-ke, umsebenzi owenziwe ngomshini unesakhiwo se-homogeneous ngisho nasemaphethelweni, angashintshi ekuqhubekeni kwezinto.
Lesi simo sivumela ukuqedwa ngokushesha kwendawo yokusebenza ngokugaya noma ukubhoboza .Ngakho-ke akudingekile ukuba anneal impahla noma ukwenza ukuhlinzwa okufanayo kusengaphambili.
