He aha ke kila AISI H12

ʻO ke kila kila hana wela AISI H12 kekahi o nā papa i hoʻohana nui ʻia ma ka ʻohana kila kila, i ʻike ʻia no kona hui pū ʻana o ka paʻakikī, ke kūpaʻa wela, a me ka ikaika o ka ʻaʻahu. Ke hoʻomau nei nā ʻoihana i ke koi ʻana i nā mea ikaika a paʻa no ka hoʻolei make, forging, a me extrusion,ʻAISI H12he koho makemake nui ʻia i waena o nā ʻenekinia a me nā mea hana hana ma ka honua holoʻokoʻa.

Ma kēia ʻatikala, e ʻimi kikoʻī mākou i ke ʻano o ke kila AISI H12, kona ʻano kemika, nā waiwai mechanical, ke kaʻina hana wela, nā noi ʻoihana maʻamau, a no ke ahaSAKYSTEELʻo ia kekahi o nā mea hoʻolako hilinaʻi loa o ke kila hana wela H12.

1. Hoʻolauna i ke kila AISI H12

He kila hana wela ka AISI H12 i hoʻokumu ʻia i ka chromium no nā kila H-series, nona nā papa e like me H10, H11, a me H13. Hoʻohana nui ʻia kēia mau kila no nā hana hana e pili ana i ka ʻike ʻana i nā mahana kiʻekiʻe a me ke kaumaha mechanical.

ʻO ka inoa "H" e pili ana i ka "Hana Wela," e hōʻike ana ua hoʻolālā ʻia ʻo AISI H12 e mālama i ka paʻakikī a me ka ikaika ʻoiai ke hoʻohana ʻia i nā mahana kiʻekiʻe. Hāʻawi kēia papa i ke kūpaʻa maikaʻi loa i ka haki ʻana o ka luhi wela, ka oxidation, a me ka palupalu ma lalo o ka hoʻomehana wela lōʻihi.

Ua hoʻonohonoho ʻia ʻo AISI H12 ma lalo o kekahi mau hoʻolālā like:

  • AISI H12 / UNS T20812

  • ʻO Werkstoff Helu 1.2605

  • ʻO DIN X35CrW5 / X35CrMoV5-1

  • JIS SKD6

Ma muli o kona hui pū ʻana o ka paʻakikī, ka paʻakikī, a me ke kūʻē ʻana i ka nānā ʻana i ka wela, kūpono ʻo AISI H12 no nā mea hana kaumaha, nā make wela, a me nā ʻōmole extrusion.

2. Ka Hoʻohui Kemika o AISI H12

ʻO ka hana o ke kila AISI H12 ua wehewehe nui ʻia e kona ʻano kemika kaulike. ʻO ke alo o ka chromium, molybdenum, a me ka tungsten e hāʻawi i ka ikaika wela kiʻekiʻe a me ke kūpaʻa ʻana i ka oxidation, ʻoiai ʻo ke kalapona e hōʻoiaʻiʻo i ka paʻakikī a me ke kūpaʻa ʻana i ka ʻaʻahu.

ʻElemene ʻIke (%)
Kalapona (C) 0.35 – 0.45
Chromium (Cr) 4.75 – 5.50
Molibdenum (Mo) 1.10 – 1.75
Tungsten (W) 1.00 – 1.75
Vanadium (V) 0.20 – 0.60
Silika (Si) 0.80 – 1.20
Manganese (Mn) 0.25 – 0.50
Nikala (Ni) ≤ 0.3
Sulfur (S) + Phosphorus (P) ≤ 0.03

Hāʻawi kēia hui ʻana i kahi microstructure kaulike maikaʻi e kākoʻo ana i ke kūpaʻa wela a me ka mechanical. Hoʻonui ka nui o ka chromium i ke kūpaʻa ʻana i ka pala a me ka paʻa ʻana o ka paʻakikī, ʻoiai ʻo ka tungsten a me ka molybdenum e hoʻoikaika i ke kila i nā mahana kiʻekiʻe.

3. Nā Waiwai Mekanika o AISI H12

ʻO ka hana mechanical o AISI H12 e kūpono ai no nā hana e pili ana i ke kaomi kiʻekiʻe a me nā pōʻaiapuni mahana. ʻO nā waiwai mechanical maʻamau ma hope o ka mālama ʻana i ka wela penei:

Waiwai Waiwai Maʻamau
Paʻakikī (Hoʻopaʻa ʻia) ≤ 229 HB
Paʻakikī (Paʻakikī a Hoʻomaʻamaʻa ʻia) 44 – 52 HRC
Ikaika Hoʻopaʻa 1500 – 1900 MPa
Ikaika Hāʻawi 1200 MPa (kokoke)
Hoʻolōʻihi 10 – 15%
Paʻakikī o ka hopena Maikaʻi loa i ka mahana kiʻekiʻe

Hoʻohui ʻo AISI H12 i ka ikaika wela kiʻekiʻe me ka paʻakikī, kahi e hōʻemi ai i ka pilikia o ka haki ʻana i ka wā o ka hana die-casting a i ʻole forging. ʻAe kēia hoʻonohonoho waiwai i ke kila e hana maikaʻi ma lalo o ka hoʻopōʻaiapuni thermal pinepine ʻia.

4. Kaʻina Hana Hoʻomehana

He mea nui ka mālama wela kūpono no ka hoʻonui ʻana i ka hana mechanical o AISI H12. ʻO ke kaʻina hana mālama wela maʻamau e komo pū me kēia mau ʻanuʻu:

Hoʻoheheʻe ʻana

  • E hoʻomehana i 850–900°C.

  • E paʻa no 2-4 mau hola ma muli o ka nui o ka ʻāpana.

  • E hoʻomaʻalili mālie i loko o ka umu a hiki i 600°C, a laila i ka lewa.

  • Hopena: ʻAno palupalu me ka paʻakikī ≤ 229 HB no ka mīkini ʻana.

Hoʻomehana mua ʻana

  • E hoʻomehana mālie i ʻelua pae: ʻo ka mua a i 450–500°C, a laila a i 850–900°C.

Hoʻopaʻakikī

  • E hoʻomake i ka austenitize ma 1000–1050°C.

  • E paʻa no ka manawa kūpono (20-30 mau minuke).

  • E kinai i ka ea, ka ʻaila, a i ʻole ka ʻauʻau paʻakai ma 550°C.

  • Hopena: Paʻakikī a hiki i ka 52 HRC.

Hoʻomehana ʻana

  • E hoʻomaʻamaʻa koke ma hope o ka paʻakikī ʻana.

  • Mahana hoʻomehana maʻamau: 500–650°C.

  • Paipai ʻia ka hoʻopālua ʻana no ka hoʻomaikaʻi ʻana i ka paʻakikī.

Ma hope o ka hoʻomaʻamaʻa ʻana, hiki ke hoʻomalu ʻia ka paʻakikī hope loa e like me ka noi i makemake ʻia - ma waena o44 a 52 HRC.

5. Nā Pōmaikaʻi o ke kila AISI H12

He mea waiwai nui ʻo AISI H12 no kona mau waiwai kaulike maikaʻi. Aia ma lalo nā pono nui e lilo ai ia i mea hilinaʻi no nā mea hana ʻoihana:

  1. Ke kū'ē ʻana i ka luhi wela kiʻekiʻe
    Kūʻē i ka nahā ma lalo o nā pōʻaiapuni hoʻomehana a me ke anuanu pinepine ʻia.

  2. Paʻakikī maikaʻi loa
    Mālama i ka ikaika o ka hopena ʻoiai ma lalo o ke kaumaha kiʻekiʻe a me ka mahana.

  3. Paʻa Ana Maikaʻi
    ʻO ka hoʻopilikia liʻiliʻi i ka wā o ka mālama wela e hōʻoiaʻiʻo ai i ka pololei o ka mea hana.

  4. Ke kū'ē ʻana i ka palupalu
    Hoʻopaʻa i ka paʻakikī ma nā mahana lawelawe kiʻekiʻe a hiki i 600°C.

  5. Ke kūpaʻa maikaʻi o ka ʻaʻahu
    Kūpono no nā wahi abrasive e like me nā make extrusion a me nā hāmare forging.

  6. Ka hiki ke mīkini a me ka hiki ke hoʻopili ʻia
    Hāʻawi ʻo AISI H12 i ka machinability kūpono a hiki ke hoʻopau i kahi ʻili maikaʻi.

ʻO kēia mau hiʻohiʻona e hoʻolilo iā AISI H12 i kekahi o nā koho kūpono loa no nā mea hana hana wela kaumaha.

6. Nā Noi ʻOihana

Hoʻohana ʻia ʻo AISI H12 i nā ʻano hana ʻoihana like ʻole e pono ai ke kūpaʻa wela kiʻekiʻe a me ka paʻakikī. ʻO nā noi maʻamau:

1. Nā Mea Hana Hoʻolei Make

  • Nā make hoʻolei make kaomi

  • Nā mea hoʻokomo make

  • Nā pine koʻikoʻi a me nā lima lima

2. Nā Make Hoʻoheheʻe

  • Make ka forge kulu

  • Make kaomi wela

  • Nā mea hana hoʻonāukiuki

3. Nā Make Extrusion

  • Make extrusion alumini

  • Nā mea hana make keleawe a me ka magnesium

4. Nā ʻōmole palakiko a me nā mea holo wela

  • Nā ʻipu hoʻoheheʻe plastik

  • Nā ʻōnaehana holo no nā plastik wela kiʻekiʻe

5. Nā ʻĀpana Aerospace a me nā Kaʻa

  • Nā pahi turbine a me nā ʻāpana nozzle

  • Nā noho valve mīkini a me nā hoʻokomo wela kiʻekiʻe

6. Nā ʻUhi a me nā Punches Wela

  • ʻOki ʻana i nā pahi no nā mea wela kiʻekiʻe

  • Nā mea hana ʻoki no ka hana ʻana i ke kila wela

ʻO ka hoʻohana nui ʻana o AISI H12 ma nā ʻoihana he nui e hōʻike ana i kona hilinaʻi hana a me ke ola lawelawe lōʻihi.

7. Hoʻohālikelike: AISI H12 vs AISI H13 vs H11

ʻOiai ʻo AISI H13 a me H11 he mau kila hana wela kaulana nō hoʻi, hāʻawi ʻo H12 i kahi kaulike ʻokoʻa o ka ikaika a me ka paʻakikī.

Waiwai AISI H11 ʻAISI H12 ʻAISI H13
Kalapona (C) 0.35 0.40 0.40
Chromium (Cr) 5.25 5.25 5.25
Molibdenum (Mo) 1.25 1.25 1.35
Tungsten (W) — 1.50 —
Ikaika Wela Maikaʻi loa Maikaʻi loa Maikaʻi loa
Luhi Wela Waena Maikaʻi loa Maikaʻi loa
Ke kū'ē ʻana i ka ʻaʻahu Waena Kiʻekiʻe Kiʻekiʻe Loa

ʻAISI H12hāʻawi i ka ikaika wela kiʻekiʻe a me ke kū'ē'ē'ana i ka haki'ana i hoʻohālikelike'ia me H11, me ka mālama'ana i ka pa'akikī maika'i ma mua o H13 i kekahi mau noi. ʻO kēia ka mea e kūpono loa ai no nā make forging kaumaha a me nā'ōmole extrusion.

8. Nā Manaʻo no ka Mīkini a me ka Kuʻihao

Mīkini

Pono e mīkini ʻia ʻo AISI H12 i kona kūlana annealed. ʻO kona helu machinability ma kahi o 75% o ke kila AISI 4140. ʻO ka hoʻohana ʻana i nā mea hana carbide a me ka mālama ʻana i nā kūlana hoʻomaʻalili kūpono he mea nui ia no ka hoʻolōʻihi ʻana i ke ola o ka mea hana.

Kuʻihao

Hiki ke hoʻoheheʻe ʻia me ka hoʻomehana mua ʻana (250–350°C) a me ka hoʻomaʻamaʻa ʻana ma hope o ka hoʻoheheʻe ʻana e pale aku i ka nahā ʻana. ʻO nā mea hoʻopihapiha i ʻōlelo ʻia he ʻano like me ka metala kumu.

Ka mālama ʻana i ka ʻili

No ke ola lawelawe lōʻihi, hiki ke hoʻopili ʻia nā hana ʻili e like me ka nitriding a i ʻole ka uhi ʻana o PVD. Hōʻike nā ʻili Nitrided AISI H12 i ka paʻakikī i hoʻomaikaʻi ʻia a me ke kūpaʻa ʻana i ka ʻaʻahu me ka ʻole o ka nalowale ʻana o ka paʻakikī o ke kumu.

9. Nā ʻAno Hoʻolako a me nā Nui

SAKYSTEELhoʻolako i ke kila hana wela AISI H12 ma nā ʻano like ʻole a me nā nui like ʻole, me:

  • Nā kaola poepoe

  • Nā kaola pālahalaha

  • Nā papa a me nā poloka

  • Nā bila i hoʻoheheʻe ʻia

  • Nā make i hana mua ʻia

Hoʻolako ʻia nā mea āpau meEN 10204 3.1 Nā Palapala Ho'āʻo Mill, e hōʻoia ana i ka haku mele kemika a me ka hana mechanical. Loaʻa pū nā lawelawe ʻoki maʻamau, mīkini kikoʻī, a me ka mālama wela e like me nā kikoʻī o ka mea kūʻai aku.

10. Ka Hōʻoiaʻiʻo Kūlana a me nā Kūlana

At SAKYSTEEL, ua hana ʻia nā mea AISI H12 āpau e like me nā kūlana honua e like me:

  • ASTM A681 - Mea Hana kila Alloy

  • DIN EN ISO 4957 - Nā kila mea hana

  • JIS G4404 - Nā kila mea hana Alloy

Hoʻomaʻamaʻa ʻia kēlā me kēia pūʻulu i ka kaohi maikaʻi loa, me ka hoʻāʻo ʻana o ka ultrasonic, ka nānā ʻana i ka paʻakikī, a me ka nānā ʻana i ka metallographic e hōʻoia i ka hana kīnā ʻole.

11. Nā Manaʻo no ke Ola Pono Loa o ka Mea Hana

No ka hoʻokō ʻana i ke ola hana maikaʻi loa mai nā ʻāpana AISI H12:

  1. E hoʻohana i ka hoʻomehana mua kūpono ma mua o ka hana.

  2. E pale i nā loli nui o ka mahana.

  3. E hana i ka hoʻomaloʻo pālua no ka hoʻonui ʻana i ka paʻakikī.

  4. E hoʻopili i ka nitriding no ka paʻakikī o ka ʻili i hoʻolōʻihi ʻia.

  5. E mālama i ka poni ʻana mau i nā hana wela.

ʻO ka hahai ʻana i kēia mau alakaʻi e hōʻoiaʻiʻo ana i ke ola lawelawe nui loa, ka hoʻemi ʻana i ka manawa downtime, a me ka mālama kālā no nā mea hoʻohana ʻoihana.

12. Hopena

He kila hana wela hana kiʻekiʻe ʻo AISI H12 e hāʻawi ana i ka paʻakikī kūikawā, ke kūpaʻa wela, a me ke kūpaʻa o ka dimensional i nā ʻano ʻoihana koʻikoʻi. ʻO kona ʻano hui like ʻana a me ke kūpaʻa kiʻekiʻe i ka luhi wela e lilo ia i mea makemake nui ʻia no ka forging, die casting, a me extrusion tooling.

Me nā makahiki o ka ʻike hana a me ka hoʻokuʻu aku,SAKYSTEELhāʻawi i nā huahana kila AISI H12 kiʻekiʻe e hoʻokō ana i nā kūlana honua a me nā koi kikoʻī o ka mea kūʻai aku. Inā makemake ʻoe i nā poloka i hoʻoheheʻe ʻia, nā papa ʻoki kikoʻī, a i ʻole nā ​​​​​​pahu mākaukau e mīkini,SAKYSTEELhōʻoiaʻiʻo i ka hilinaʻi kūpono, ka hāʻawi manawa kūpono, a me ke kākoʻo loea ʻoihana.

Ka manawa hoʻouna: ʻOkakopa-28-2025