I ke ao o nā mea ʻenekinia holomua,15-7PH kila kilakū i waho ma ke ʻano he hoʻokahi o nā kila kila paʻakikī a me ka ikaika kiʻekiʻe i loaʻa i kēia lā. ʻO kona hiki ke hoʻohuiikaika mechanical maikaʻi loa, kūpaʻa i ka pala, a me ke kūpaʻa welahe mea kūpono ia no nā ʻoihana e koi ana i ka hilinaʻi ma lalo o nā kūlana koʻikoʻi.
Ma kēia ʻatikala,SAKYSTEELhāʻawi i kahi ʻike kikoʻī ohe aha ke kila kila 15-7PH, konaka hoʻohuihui kemika, nā waiwai koʻikoʻi, a menā noi ʻoihana nui, e kōkua ana i nā ʻenekinia a me nā loea kūʻai e hana i nā hoʻoholo naʻauao i ke koho ʻana i nā mea no nā ʻāpana hana kiʻekiʻe.
1. He aha ke kila kila 15-7PH?
15-7PH kila kila(ʻo UNS S17700, i ʻike ʻia hoʻi ʻo Type 15-7 PH a i ʻole 631 alloy) hekila kila martensitic paʻakikī-waiaia ma kahi o15% chromium a me 7% nickel, me nā hoʻohui oaluminie hoʻomaʻalahi i ka paʻakikī ʻana ma o ka mālama wela ʻana.
ʻO ke ʻano o ka "PH" ma kona inoaKa Paʻakikī ʻana o ka Ua, kahi hana mālama wela e hoʻonui ai i ka ikaika mechanical o ka alloy ma o ka hoʻomoe ʻia ʻana o nā hui intermetallic maikaʻi i loko o ka hale o ke kila.
Hoʻomohala ʻia ma ke ʻano he hoʻomaikaʻi ʻana17-7PHa me17-4PH, hāʻawi ʻo 15-7PH i kahi kaulike oikaika kiʻekiʻe, kūpaʻa i ka pala, a me ke ʻano maikaʻi loa, e kūpono ana no nā mea ʻeluamokulelea meʻoihananā noi.
2. Ka Hoʻohui Kemika
ʻO ke ʻano kemika i kāohi pono ʻia o ke kila kila 15-7PH ke kī i kāna hana maikaʻi loa.
| ʻElemene | ʻIke maʻamau (%) | Hana |
|---|---|---|
| Chromium (Cr) | 14.0 – 16.0 | Ke kūpaʻa a me ka paʻakikī o ka palaho |
| Nikala (Ni) | 6.5 – 7.8 | Paʻakikī a me ke kūpaʻa o ka matrix martensitic |
| Alumini (Al) | 0.75 – 1.5 | ʻElemene paʻakikī ua |
| Kalapona (C) | ≤ 0.09 | Ikaika me ka ʻole o ka hōʻemi ʻana i ka ductility |
| Manganese (Mn) | ≤ 1.0 | Deoxidizer a me ka mea hoʻonui ikaika |
| Silika (Si) | ≤ 1.0 | Hoʻomaikaʻi i ke kūpaʻa ʻana i ka oxidation |
| ʻO ka phosphorus (P) | ≤ 0.04 | Mālama ʻia i lalo e pale aku i ka brittleness |
| Sulfur (S) | ≤ 0.03 | Hoʻomalu ʻia no ka mīkini |
| Hao (Fe) | Kaulike | ʻElemene kumu |
ʻAe kēia haku mele i ka metala e hoʻololi mai ka pae austenitic a i ka martensitic ma o ka mālama wela ʻana, a laila hiki ke hoʻomaʻamaʻa ʻia e loaʻa ai ka ikaika a me ka paʻakikī kiʻekiʻe.
3. Microstructure a me Metallurgy
I kona kūlana hoʻoheheʻe ʻia me ka hopena, ʻo 15-7PHʻaustenitic, ʻo ia hoʻi hiki ke hana maʻalahi ʻia a hana ʻia. Ma hopehana anua meka mālama wela, hoʻololi ia i kahimartensiticʻano hana, ka mea e hāʻawi ana i kona ikaika kiʻekiʻe loa.
I ka wā e ʻelemakule ai (ma waena o 510–565°C),nā mea i loaʻa i ka aluminie like meNi₃Alhana i loko o ka matrix. Hoʻonui nui kēia mau ʻāpana i hoʻolaha maikaʻi ʻia i ka paʻakikī a me ka ikaika hua, ʻoiai e mālama ana i ka paʻakikī maikaʻi a me ke kūpaʻa i ka pala.
4. Nā Waiwai Mekanika Koʻikoʻi
Hōʻuluʻulu ka papa ma lalo nei i nā waiwai mechanical maʻamau o ke kila kila 15-7PH ma nā kūlana lapaʻau wela like ʻole:
| Kūlana | Ikaika Hua (MPa) | Ikaika Hoʻopaʻa (MPa) | Hoʻolōʻihi (%) | Paʻakikī (HRC) |
|---|---|---|---|---|
| Hoʻoheheʻe ʻia ka hopena (Kūlana A) | 850 | 1050 | 15–20 | 25–30 |
| Kūlana CH900 | 1300 | 1450 | 5–8 | 42–46 |
| Kūlana RH950 | 1170 | 1300 | 8–12 | 40–44 |
Hōʻike kēia mau hopena i ka hiki o ka metala keloaʻa ka ikaika kiʻekiʻe loa ma hope o ka ʻelemakule ʻana, hoʻohālikelike pinepine ʻia me nā kila kila haʻahaʻa-alloy, akā me ka pōmaikaʻi i hoʻohui ʻia oke kūpaʻa ʻana i ka palahomaʻamau o nā papa kila kila.
5. Nā Hiʻohiʻona Koʻikoʻi a me nā Pōmaikaʻi
5.1 Ikaika a me ka Paʻakikī Kiʻekiʻe
Ma hope o ka ʻelemakule ʻana, hoʻomohala ka 15-7PH i nā ikaika hua ma luna o1300 MPa, ka mea e hiki ai i nā mea hoʻolālā ke hōʻemi i ka mānoanoa a me ke kaumaha o ka ʻāpana i nā ʻāpana koʻikoʻi.
5.2 Kū'ē maikaʻi loa i ka palaho
ʻO ka nui o ka chromium e hāʻawi i ka 15-7PH i ke kūpaʻa maikaʻi loa i ka palaho lewa a me nā wahi kemika akahai. Hana maikaʻi ia i loko okaia meʻoihananā lewa, ʻoiai ʻaʻole i kūpaʻa i ka pala e like me nā papa austenitic piha e like me 316.
5.3 Maikaʻi ke ʻano
I kona kūlana annealed (A), hiki ke hana ʻia ka meamaʻalahi ke hana, kahakiʻi, a pelu paha, e kūpono ana no nā ʻāpana paʻakikī i mālama ʻia ma hope me ka wela no ka ikaika kiʻekiʻe.
5.4 Ka Luhi Koʻikoʻi a me ke Kūʻē ʻana i ke Koʻikoʻi
ʻO ke ʻano microstructure maikaʻi a like ma hope o ka ʻelemakule ʻana e hāʻawi i ka ikaika luhi maikaʻi loa he 15-7PH a me ke kūʻē ʻana i ka haki ʻana o ka corrosion stress, ʻoiai ma lalo o nā kūlana ukana cyclic.
5.5 Paʻa Ana
Hōʻike ia i ka liʻiliʻi o ka hoʻopilikia ʻana i ka wā o ka mālama wela a me ka mana dimensional maikaʻi loa, e kūpono ana nonā ʻāpana mīkini kikoʻī.
6. Ka Hoʻomaʻamaʻa Wela a me ka Hana ʻana
Hiki ke mālama ʻia ka 15-7PH i ka wela i nā ʻano ʻano like ʻole e hoʻokō ai i nā waiwai mechanical kikoʻī.
KaʻAnuʻu Hana 1: Hoʻoheheʻe ʻana i ka hopena (Kūlana A)
-
Hoʻomehana i1038°C (1900°F)no 1 hola a hoʻomaʻalili i ka ea.
-
Noho austenitic ka mea a maʻalahi ke hoʻokumu.
KaʻAnuʻu Hana 2: Hoʻololi i ke Kūlana Martensitic (Kūlana TH1050)
-
Hana anu (hoʻemi maʻamau 60–70%) e hoʻoulu i ka ʻano martensitic.
-
A laila hoʻomehana i565°C (1050°F)no 1 hola a hoʻomaʻalili i ka ea.
KaʻAnuʻu Hana 3: Ka Lapaʻau ʻana i ka ʻElemakule (Kūlana RH950)
-
Makahiki ma510°C (950°F)no 1–4 hola.
-
Nā hopena i ka paʻakikī a me ka ikaika loa.
ʻO ka kaohi kūpono ʻana o kēia mau ʻanuʻu e hōʻoiaʻiʻo ai i nā waiwai kūlike ma nā ʻāpana nui a paʻakikī paha.
7. Nā Waiwai Kino
| Waiwai | Waiwai |
|---|---|
| Ka nui o ka paʻa | 7.8 g/cm³ |
| Modulus Elastic | 200 GPa |
| Ka Hoʻokele Wela | 16.7 W/m·K |
| Ka helu o ka hoʻonui ʻana | 10.9 × 10⁻⁶ /°C |
| Ke kū'ē uila | 0.00074 Ω·cm |
ʻAe kēia mau ʻano kino i ka 15-7PH e hana maikaʻi i nā mahana haʻahaʻa a me ke kiʻekiʻe a hiki i550°C (1020°F).
8. Hoʻohālikelike me nā kila kila PH ʻē aʻe
| Waiwai | 15-7PH | 17-4PH | 17-7PH |
|---|---|---|---|
| ʻElemene Hoʻopaʻakikī Nui | Alumini | Keleawe | Alumini |
| Ikaika (ʻelemakule) | Kiʻekiʻe Loa | Kiʻekiʻe | Waena |
| Ke kū'ē ʻana i ka palaho | Maikaʻi loa | Maikaʻi loa | Maikaʻi loa |
| Ka hiki ke hana ʻia | Maikaʻi loa | Maikaʻi loa | Maikaʻi loa |
| Mahana Hana Loa | 550°C | 315°C | 425°C |
| ʻAno Magnetic | Magnetic ma hope o ka ʻelemakule | Mākēneki | Mākēneki |
15-7PH kila kilanā hāʻawika ikaika kiʻekiʻe a me ka hiki ke mahanahoʻohālikelike ʻia me 17-4PH a me 17-7PH, ʻoiai e mālama ana i ka hana maikaʻi o ka pala a me ka maʻalahi o ka hana ʻana.
9. Nā noi o ke kila kila 15-7PH
Ma muli o kona hui kūikawā o ka ikaika, ka paʻakikī, a me ke kūpaʻa i ka pala, hoʻohana nui ʻia ʻo 15-7PH i nā noi koʻikoʻi kahi e pono ai ka hilinaʻi.
9.1 ʻOihana Lehulehu
-
Nā pūnāwai, nā diaphragms, a me nā bellows
-
Nā lako mokulele a me nā mea paʻa
-
Nā mea hoʻoikaika hana kiʻekiʻe
-
Nā ʻāpana kūkulu i hōʻike ʻia i ka wela a me ke kaumaha
9.2 Nā Lako Kemika a me Petrochemical
-
Nā kīʻaha kaomi a me nā ʻāpana valve
-
Nā pūnāwai hana kemika a me nā sila
-
Nā ʻau kuʻi i ka palaho
9.3 Hana Mana
-
Nā mea paʻa o ka pahi turbine
-
Nā ʻūmiʻi a me nā pine pale wela
9.4 Kaʻa a me ka ʻOihana
-
Nā pūnāwai a me nā mea holoi kikoʻī
-
Nā mea hana ikaika kiʻekiʻe a me nā ʻāpana mea kani
Ma muli o konakūpaʻa luhi maikaʻi loa, ua waiwai nui ʻia ʻo 15-7PH i nā ʻāpana i pili ika hoʻouka cyclic i hana hou ʻia.
10. Ka Makini a me ka Hana ʻana
10.1 Ka hiki ke hana mīkini
Nā mīkini 15-7PH e like me ke kila kila 17-4PH. Pono e hana ʻia i loko o kakūlana annealede hōʻemi i ka ʻaʻahu ʻana o ka mea hana. Ma hope o ka ʻelemakule ʻana, lilo ka mea i mea paʻakikī loa a koi ʻia ka mea hana carbide.
10.2 Kuʻihao
Hiki ke hoʻopili ʻia me ka hoʻohana ʻana i nā ʻano fusion maʻamau, e like meGTAW (TIG)a meGMAW (MIG)Eia nō naʻe, ua ʻōlelo ʻia ka mālama wela ma hope o ka hoʻopili ʻia ʻana e hoʻihoʻi i ke kūpaʻa a me ka ikaika o ka pala.
10.3 Ke hoʻokumu ʻana
I kona kūlana annealed, hāʻawi ʻo 15-7PH i ka hiki ke hoʻokumu maikaʻi. Ma hope o ka hana anu a me ka ʻelemakule ʻana, paʻakikī nui ia, e kaupalena ana i nā hana hoʻokumu hou aʻe.
11. Ke kū'ē'ē ʻana i ka palaho ma nā kiko'ī
Hana maikaʻi ʻo 15-7PH ma nā wahi he nui e like me:
-
Nā lewa moana
-
Nā hopena waikawa iki
-
Nā kinoea ʻoihana a me ka mahu
Eia nō naʻe, ʻo iaʻaʻole i ʻōlelo ʻia no nā wahi waikawa ikaika a waiwai paha i ka chloridee like me ke komo ʻana o ka wai kai, kahi e hiki ai ke komo ka lua. No ke kūpale ʻana i ka palaho kiʻekiʻe loa, pono e hoʻomaʻemaʻe pono ʻia ka ʻili a hoʻohemo ʻia ma hope o ka hana ʻana.
12. Hana Mahana
Mālama ka mea hoʻohuihui i kona mau waiwai mechanical a hiki i ka550°C (1020°F), ma luna o ia mea e hōʻemi ai ka ikaika i ka wā ʻelemakule. Mālama pū ia i ka paʻakikī maikaʻi a me ka ikaika luhi ma nā mahana ma lalo o ka zero, e lilo ia i mea maʻalahi no nā noi lawelawe wela a me ke anu.
13. Ka Mana Kūlana a me ka Palapala Hōʻoia
At SAKYSTEEL, ua hana ʻia nā mea kila kila 15-7PH āpau ma lalo onā ʻōnaehana kaohi maikaʻi koʻikoʻi, e hōʻoiaʻiʻo ana:
-
Ka ʻike piha ʻana a me ka helu wela
-
Ka nānā ʻana i ka haku mele kemika e ka spectrometer
-
Ka hoʻāʻo ʻana o ka mīkini no kēlā me kēia pūʻulu
-
Nānā ʻana o ka Ultrasonic a me ka ʻili
-
Nā palapala hōʻoia e like me nā kūlana EN 10204 3.1 / 3.2
(Logo SAKYSTEEL)
14. Nā ʻAno Huahana Maʻamau i Hāʻawi ʻia e SAKYSTEEL
-
Nā Kaola a me nā Koko Poepoe:Ua huki anu ʻia, ʻili ʻia, wili ʻia, a i ʻole i hoʻopili ʻia me ke kikowaena ʻole
-
Nā Papa & Nā Pepa:ʻŌwili wela a ʻōwili anu paha
-
Uea a me ke kaha:Uea puna kikoʻī no ka hoʻohana ʻana i ka aerospace a me ka ʻoihana
-
Nā hana hoʻoheheʻe:Nā ʻano hana maʻamau e like me nā kikoʻī o ka mea kūʻai aku
Hāʻawi ʻo SAKYSTEEL i nā laulā nui maʻalahi, nā lawelawe ʻokiʻoki, a mehoʻouna wikiwiki honuae hoʻokō i nā manawa papahana.
15. Nā Pōmaikaʻi o ke Koho ʻana iā 15-7PH mai SAKYSTEEL
-
ʻOiaʻiʻo o ka Alloy i hōʻoia ʻia- Ua hōʻoia ʻia ma o ka PMI a me ka hiki ke hahai ʻia ka helu wela
-
Nā Waiwai Mekanika Paʻa- Ka ikaika like a me ka paʻakikī i kēlā me kēia puʻupuʻu
-
Ka Hana Wela ʻOihana– Loaʻa ke kūlana A, TH1050, a me RH950
-
Hoʻopau ʻili maikaʻi loa- Nā koho i hoʻopili ʻia a ʻālohilohi paha no nā ʻāpana kikoʻī
-
ʻIke Hoʻokuʻu Aku Honua- Kūlike me nā kūlana ASTM, AMS, a me EN
SAKYSTEELua hoʻolako i nā mea 15-7PH inā ʻoihana aerospace, pale kaua, moana, a me nā kemikama ʻĀsia, ʻEulopa, a me ʻAmelika ʻĀkau.
16. Hoʻohālikelike: 15-7PH vs. 17-4PH ma nā noi maoli
| Waiwai | 15-7PH | 17-4PH |
|---|---|---|
| Paʻakikī (Max HRC) | 46 | 42 |
| Mahana Hana | A hiki i 550°C | A hiki i 315°C |
| Ikaika Luhi | Kiʻekiʻe aʻe | Waena |
| Ka hiki ke hoʻopili ʻia | Maikaʻi loa | Maikaʻi loa |
| Ka hiki ke hana mīkini | Waena | ʻOi aku ka maikaʻi |
| Laʻana Noi | Nā Puna, nā Diaphragms, nā Valves | Nā ʻau, nā bolts, nā ʻāpana pamu |
Noka ikaika o ka mahana kiʻekiʻe a me ka hana luhi, ʻoi aku ka maikaʻi o 15-7PH ma mua o 17-4PH. I ka wā e lilo ai ka hiki ke hoʻopili ʻia a me ke kumukūʻai i mea nui, makemake ʻia paha ka 17-4PH.
17. Nā Manaʻo no ka Mālama ʻana a me ka Lawelawe ʻana
-
E mālama i lokonā wahi maloʻo a maʻemaʻee pale aku i ka haumia a me ka pala.
-
E pale i ka hoʻopā ʻana me nā ʻili kila kalapona i ka wā e lawelawe ai.
-
Hoʻohananā mea hoʻokaʻawale ʻole-metalai ka wā e hoʻopili ai i nā pepa a i ʻole nā kaola.
-
E hoʻopili i kahi uhi pale a i ʻole ka ʻōwili no nā hoʻouna aku i waho.
Mālama ka lawelawe pono ʻana i ka maikaʻi o ka ʻili o ka metala a me ka hana ʻino.
18. Hopena
15-7PH kila kilahe mea hoʻohuihui ikaika kiʻekiʻe, hoʻopaʻakikī i ka ua e hāʻawi ana i kahi hui kūikawā oka hana mīkini, ke kūpaʻa i ka pala, a me ke kūpaʻa wela.
Me kona hiki ke hoʻokō i nā ikaika hua e ʻoi aku ma mua o 1300 MPa a mālama i ke kūpaʻa a hiki i 550°C, he koho maikaʻi loa ia nonā noi ʻoihana aerospace, petrochemical, a me ke kiko kiʻekiʻe.
At SAKYSTEEL, hāʻawi mākou i nā mea kila kila 15-7PH i hōʻoia ʻia me ka hiki ke hahai piha ʻia, ka hana pololei, a me nā ana i hana ʻia e kākoʻo i nā papahana koi nui a kā mākou mea kūʻai aku.
I ka wā e koʻikoʻi ai ka hana, ka hilinaʻi, a me ka maikaʻi - hilinaʻiSAKYSTEELno kāu mau hoʻonā kila kila.
Ka manawa hoʻouna: ʻOkakopa-29-2025