Me pēhea te whakamahana i te maitai kore waikura 17-4 PH

17-4 PH kowiri tira, e mōhiotia ana koAISI 630, tētahi o ngā maitai kore waikura e whakamahia whānuitia ana mō te whakapakeke i te ua. He mea nui mōnakaha teitei, ātete ki te waikura, me te pakeke, he mea e tika ana mō ngā ahumahi uaua pēnei i te rererangi, te hinu me te hau, te tukatuka matū, te whakaputa hiko, me ngā tono moana.

Ko tētahi āhuatanga nui o te whakamahi i te maitai kore waikura 17-4 PH ko tōnatukanga maimoatanga wera, e āhei ai ngā kaihangarau ki te whakarerekē i te kaha, te pakari, me te ātete ki te waikura o te rauemi mō ngā tono rerekē. E whakamārama ana tēnei tuhinga i ngā taipitopitoMe pēhea te whakamahana i te maimoatanga kowiri tira 17-4 PH, ngā āhua āhua rerekē (pēnei i te H900, H1025, H1150), ngā tukanga taahiraa-i-te-taahiraa, me ngā whakaaro matua hei whakarite i te mahi tino pai.

He aha te maitai kore waikura 17-4 PH?

Ko te maitai kore waikura 17-4 PH hete maitai kore waikura whakapakeke-martensitickei roto ko te chromium, te nickel, me te parahi.

Te Hanganga Matū (Tūturu):

• Konupora (Kr): ~15–17%

• Nikara (Ni): ~3–5%

• Parahi (Cu): ~3–5%

• Niobium (Nb): 0.15–0.45%

• Rino (Fe): Taurite

Ngā Āhuatanga Matua:

• Te kaha kume teitei (tae atu ki te 1310 MPa)

• He ātete pai ki te waikura, he rite ki te maitai kore waikura 304

• Ngā āhuatanga miihini tino pai tae atu ki te 600°F (316°C)

• Ka taea te whakamahana ki ngā taumata pakeke rerekē

He aha i whakamahia ai te whakamahana i te maitai kore waikura 17-4 PH?

1. Ngā Āhuatanga Mīhini Kua Whakaritea

   • Mā te maimoatanga wera ka taea e ngā kaihangarau te whakarerekē i te pakeke, te kaha tukua, me te pakari.

2. Te Ātete Whakamau Pai Ake

   • Ka whakarei ake ngā āhuatanga uaua ake pēnei i te H900 i te ātete ki te karawarawa.

3. Ātete Waikura Arotau

   • Ka whakatauritehia te kaha me te mahi waikura e ētahi āhuatanga.

4. Te Pūmautanga o te Ahu

   • Mā te maimoatanga wera tika ka whakaitihia te hē me te ahotea i te wā e whakamahia ana.

Te Tukanga Maimoatanga Wera mō te Kowiri tira 17-4 PH

Hipanga 1: Te Whakamahana i te Wairewa (Tūnga A)

• Whakamahanahia te rauemi kia ōrite1900°F (1040°C).

• Puritia ki te pāmahana mō te30 meneti te iti rawa.

• Whakamatao wawetia ki te pāmahana rūma (whakamataohia ki te hau, whakatio rānei ki te hinu, i runga i te matotoru).

Hua:Ka whakaputa i tētahi hanganga martensitic ngohengohe e taea ai te whakamahi, ā, kua rite hoki mō te maimoatanga tawhito.

Hipanga 2: Te Whakapakari i te Ua (Te Pakeketanga)

I muri i te whakamahana i te otinga, ka pāngia te rauemi e temaimoatanga koroheketangai ngā pāmahana kua whakahaeretia. Mā tēnei taahiraa ka puta he putunga pai (ko te nuinga he wāhanga whai parahi), ka whakapakari i te hanganga martensitic.

Ngā Āhuatanga Kaumātuatanga Noa:

1. Āhua o te H900

   • Whakamahana ki900°F (482°C)mō te 1 hāora.

   • Whakamatao i te hau.

   • Kaha rawa (tae atu ki te 200 ksi te kume), iti ake te pakari.

2. Āhua H1025

   • Whakamahana ki1025°F (552°C)mō ngā hāora e 4.

   • Whakamatao i te hau.

   • Te kaha me te pakari taurite.

3. Āhua H1075

   • Whakamahana ki1075°F (580°C)mō ngā hāora e 4.

   • Whakamatao i te hau.

   • He iti ake te kaha i te H900, he pakari ake.

4. Āhua o te H1150

   • Whakamahana ki1150°F (621°C)mō ngā hāora e 4.

   • Whakamatao i te hau.

   • He pakari pai me te ātete ki te waikura, he iti ake te pakeke.

5. Maimoatanga Takirua H1150 (H1150D)

   • Whakamahanahia ki te 1400°F (760°C) mō ngā hāora e 2 → Whakamataohia ki te hau.

   • Whakamahana anō ki te 1150°F (621°C) mō ngā hāora e 4 → Whakamataohia ki te hau.

   • Ka whakapai ake i te ātete ki te pakaru waikura i te ahotea.

Ngā Āhuatanga mā te Āhua Maimoatanga Wera