17-4PH Leqephe la Boitsebiso ba Boitsebiso
Scopes
Thepa e sa hloekang 17-4 PH e khetholloa ke matla a mangata a lihlahisoa, ho hanyetsa ha kutu e ntle le ho hanyetsa ho apara ho phahameng.17-4 PH ke e 'ngoe ea litšepe tsa bohlokoa ka ho fetisisa tse ka thatafatsoang.Hoa tšoana ka tlhahlobo le lisebelisoa tsa 1.4548 le 1.4542.
Tšebeliso ea mocheso o tlase oa mocheso o ka khoneha ka Condition H1150 le H1025.Matla a ts'usumetso a matla a notched a boetse a fanoa ka mocheso o tlase.
Ka lebaka la thepa e ntle ea mochini le ho hanyetsa ho bola, thepa e loketse ho sebelisoa libakeng tsa leoatle, empa e kotsing ea ho bola ha metsi a leoatle a emeng.
17-4PH e tsebahala haholo e le AISI 630.
Thepa ea 17-4PH e sebelisoa indastering ea lik'hemik'hale, indasteri ea lehong, indasteri ea maoatle, kahong ea likepe, boenjiniere ba mechine, indastering ea oli, indastering ea pampiri, indastering ea lipapali.Indasteri ea boikhathollo hape e le mofuta o qhibilihisitsoeng hape (ESU) moeeng le Aerospace.
Haeba thepa ea mochini le ho hanyetsa kutu ea litšepe tsa martensitic li sa lekana, 17-4PH e ka sebelisoa.
17-4PH Leqephe la Boitsebiso ba Lintho tse Khoasollang
Litšobotsi
| E bonolo | molemo |
| Weldability | molemo |
| Thepa ea mechine | e kgabane |
| Khanyetso ea kutu | molemo |
| Boikemisetso | e mpe ho isa mahareng |
Molemo
Thepa e le 'ngoe e khethehileng ea thepa ea 17-4 PH ke ho tšoaneleha bakeng sa mocheso o tlase le ho sebetsa ho fihlela hoo e ka bang.315°C.
Ho qapa:Ho thehoa ha thepa ho etsahala ka mocheso oa mocheso oa 1180 ° C ho ea ho 950 ° C. Ho etsa bonnete ba ho hloekisa lijo-thollo, ho pholisa ho mocheso oa kamore ho etsoa ka moea.
Welding:Pele thepa ea 17-4 PH e ka chesoa, ho lokela ho nahanoa ka boemo ba thepa ea motheo.Ka mokhoa o tsitsitseng, koporo e teng ka boitsebiso.Sena ha se khothaletse ho phatloha ho chesang.
Ho khona ho etsa welding optimum tjheseletsa maemo a hlokahala.Li-undercuts kapa liphoso tsa welding li ka lebisa ho thehoeng ha notch.Seo se lokela ho qojoa.Ho thibela ho thehoa ha mapetsong a khatello ea kelello, thepa e tlameha ho ba tlas'a tharollo ea annealing le botsofali bo latelang ka nako e khutšoanyane haholo ka mor'a ho cheselletsa.
Haeba ho se na phekolo ea ka mor'a mocheso, litekanyetso tsa mochine-theknoloji ka har'a seam weld le sebaka se amehileng ke mocheso ho thepa ea motheo e ka fapana haholo.
Corrosion resistance:ha thepa ea mechine le ho hanyetsa kutu ea litšepe tsa martensitic li sa lekana, 17-4 PH e loketse ho sebelisoa libakeng tsa leoatle.E na le motsoako oa thepa e ntle haholo ea mochine le ho hanyetsa ho bola.
Metsing a emeng a leoatle, 17-4 PH e kotsing ea ho bola.Sena se hloka tšireletso e eketsehileng.
Mechine:17-4 PH e ka etsoa ka mokhoa o thata le o nang le tharollo.Ho itšetlehile ka boima, machinability e fapana, sena se tla itšetleha ka boemo.
Phekolo ea mocheso
Pakeng tsa 1020 ° C le 1050 ° C thepa ea 17-4 PH ke tharollo-annealed.Sena se lateloa ke ho pholisa ka potlako - metsi, oli kapa moea.Sena se itšetlehile ka karolo ea sefapano sa thepa.
Ho netefatsa phetoho e feletseng ho tloha ho austenite ho ea ho martensite, thepa e tlameha ho ba le bokhoni ba ho pholile mocheso oa kamore.
Ho sebetsa
| Ho benya | hoa khoneha |
| Ho etsa serame | ha ho khonehe |
| Ts'ebetso ea sebopeho | hoa khoneha, ho itšetlehile ka boima |
| Ho qoela ho batang | ha ho khonehe |
| Foromo e sa lefelloeng le ea ho theola | hoa khoneha |
Thepa ea 'Mele
| Boima ba lik'hilograma/dm3 | 7,8 |
| Ho hanyetsa motlakase ho 20°C ho (Ω mm2)/m | 0,71 |
| Magnetisability | fumaneha |
| Thermal conductivity ho 20°C ho W/(m K) | 16 |
| Mocheso o khethehileng ho 20°C ho J/(kg K) | 500 |
Bala boima ba lintho tse hlokahalang ka potlako »
Sebopeho sa lik'hemik'hale
| 17-4PH | C | Si | Mn | P | S | Cr | Mo | Ni | V |
| min. | bis | bis | bis | bis | bis | 15 | bis | 3 |
|
| max. | 0,07 | 0,7 | 1,0 | 0,04 | 0,03 | 17,5 | 0,6 | 5 |
|
| 17-4PH | Al | Cu | N | Nb | Ti | Sonstiges |
| min. |
| 3,0 |
| 5xC |
|
|
| max. |
| 5,0 |
| 0,45 |
|
|
E teng thepeng e teng ka lebenkeleng
E bataletseng, e qhekelletsoeng, tharollo e hanngoe ebile e ntšitsoe kantle
Melemo ea ho khaola sakha
Ts'ebetso e nang le sakha ke ts'ebetso ea mochine oa thepa, e leng se etsang hore ho be le ho fokotseha ho sa lebelloang haholo le ho eketseha ho thata bakeng sa sebopeho se teng, joalo ka ho itšeha ha mocheso.
Ka hona, mochine o entsoeng ka mochine o na le sebopeho sa homogeneous esita le moeling, o sa fetoheng ho tsoelapele ha thepa.
Boemo bona bo lumella ho phethoa hanghang ha sesebediswa sa mosebetsi ka ho sila kapa ho phunya.Kahoo ha ho hlokahale ho anneal thepa kapa ho etsa opereishene e tšoanang esale pele.
