Waitohu konumohe: momo, āhuatanga me te tono

I teie mahana, whakamahia konumohe i roto i tata katoa ahumahi, kopikopiko i te hanga o te rihi kai, me te whakamutu ki te hanga o fuselages o te spaceships. Hoki enei atu tukanga whakanao ranei e tika anake etahi kōeke o te konumohe e whai āhuatanga physicochemical motuhake. Ko te āhuatanga matua o te whakarewa - te kawe ia ngāwhā tiketike, te ukanga, me plasticity, te waikura resistance, taimaha marama, me te iti ātete ohmic. Ko ratou i roto i te rahi tika ki te ōrau o poke i roto i tona hanganga, me te te hangarau mō te hanga haamaitairaa ranei. Nä, ko te taratahi konumohe waitohu nui.

momo o te konumohe

rama katoa o te whakarewa whakaahuatia, ka whakaurua ki roto ki te pūnaha kotahi o paerewa motu, me te ao e mōhiotia ana: ko te Pākehā EN, American ASTM International ko ISO. I roto i to tatou whenua i te waitohu konumohe tautuhia e GOST 11069 me 4784. I roto i ngā tuhinga katoa o te konumohe, me ona alloys e whakaaro motuhake. A, no te te wehea tenei whakarewa iho ki ngā māka me kahore e tautuhi āta alloys tohu.

I roto i te runga i ngā paerewa motu, me te ao e wehewehe rua momo o microstructure konumohe melé:

• te viivii tiketike ki te ōrau o neke atu i te 99.95%;
• kōeke hangarau, kei roto e pā ana ki te 1% poke me tāpiritanga.

Ka rite ki nga poke rino me te takawai pūhui atu maha whakaaro. I roto i te paerewa ISO te ao mō te konumohe, me ona alloys tohaina motuhake te rota.

konumohe waitohu

Kei te wehea ahua Hangarau o rauemi ki etahi māka, e kua whakaritea ki te paerewa hāngai, hei tauira AD0 rite ki GOST 4784-97. I roto i te whakarōpūtanga ngā whakarewa o iarere tiketike i roto i te tikanga e kore e ki te waihanga whakama. Tenei whakatakotoranga ngā te rama e whai ake nei:

1. Kura Tuatahi (A5, A95, A7E).
2. Hangarau (AD1, AD000, DT).
3. Ko te deformable (AMg2, D1).
4. Foundry (VAL10M, AK12pch).
5. Hoki deoxidizing maitai (AV86, AV97F).

I tua atu, taratahi me mālohi kāwai - kei te whakamahia pūhui konumohe ki te whakaputa i alloys o koura, hiriwa, konukawata me ētahi atu konganuku utu nui.

konumohe tuatahi

konumohe Tuatahi (tohu A5) - he tauira angamaheni o tenei rōpū. Kei te whakaputaina te reira na roto i te haamaitai alumina. I roto i te natura, e kore e te whakarewa i roto i tona puka parakore puta no te mea o tona te tauhohenga tiketike. Hono ki ētahi atu āhuatanga, hanga reira bauxites, nepheline me alunite. I muri, he alumina enei tokahuke, me i reira ki te awhina o matū matatini me ngā tukanga tinana - konumohe parakore.

GOST 11069 whakau ana whakaritenga mō ngā auroro o konumohe tuatahi, kia tuhia te reira e na roto i te faaohiparaa i te takai poutū me te whakapae o te tae rerekē, me te tamoua. Kua kitea tēnei rauemi whakamahi whānui i roto i ngā rāngai ahumahi matatau, titau te nuinga te wahi te rauemi raw āhuatanga hangarau tiketike.

konumohe hangarau

ka karanga a Hangarau rauemi konumohe ki te ōrau o te mea ke o iti iho i te 1%. Tino maha te hoki i huaina reira undoped. kōeke alumina Hangarau GOST 4784-97 whai kaha rawa iti engari ātete te waikura nui. Nā ki te ngaro i roto i te hanganga o te matūriki whakarewa alloying i runga i te mata o te kiriata waikura paruru tere i hanga e te mea eu. Pane rerekē konumohe hangarau me te kawe ia ngāwhā me te hiko pai. I roto i to ratou wini rāpoi ngā kahore poke e whakamararatia rere irahiko. Nā ki enei āhuatanga, te rauemi whānui e whakamahia ana i roto i te whakatangitangi, i te hanga o te whakawera, me te taputapu utu wera, tuhinga rama.

mahi konumohe

E pā ana ki te rauemi konumohe mahi, i raro nei te ki mahi wera, me te matao: okeoke, te pēhi, tuhi me te tahi atu momo. Ka rite ki te hua, deformation kirihou ona whiwhi wāhanga semifinished rerekē roa: konumohe tokotoko, pepa, Unuhia, pereti, me ētahi atu pūkete. Meiha rauemi deformable waitohu e whakamahia ana i roto i te hanga kāinga, kua whakarārangitia i roto i te tikanga: GOST 4784, OCT1 92014-90, OCT1 90048 me OCT1 90026. He āhuatanga āhuatanga o te feedstock hauā ko te hanganga otinga totoka ki te ihirangi tiketike o eutectic - te wāhanga wai i kei roto i te taurite ki e rua, neke atu rānei āhua mārō.

Hōkai konumohe deformable rite te kotahi te wahi te konumohe tokotoko tono, he tino whānui. Kei te whakamahia te reira i roto i ngā wāhi tono āhuatanga hangarau tiketike o te rauemi - i roto i te boat- me te rangi, me i te pae hanga rite koranu fehokotaki'anga.

faaiopoiporaa konumohe

konumohe kōeke Foundry whakamahia mo te hanga o ngā tuhinga ahuahu. Ratou āhuatanga matua ko te huinga o te kaha motuhake tiketike, me te mātotoru iti, e taea ana ki te maka tūemi o āhua matatini kahore hangai.

E ai ki to ratou whakaaro, kua wehea e maka ana tohu ki ngā rōpū:

1. rauemi hiri (Al2, AL9, AL4M).
2. Rauemi ki te kaha nui, me te ātete wera (AL 19, AL5, AL33).
3. Matū ki te waikura nui resistance.

Tino maha, te mahi o ngā hua i hanga o te konumohe makanga whakarei ngā momo o te maimoatanga wera.

konumohe Deoxidation

Ko te kounga o ngā hua hangaia me te mana e te āhuatanga ōkiko o te konumohe. A e kore e te te whakamahi o ngā momo iti-kōeke o te rauemi iti ki te hanga o ngā hua takawaenga. Tino maha te whakamahia reira mo deoxidation o maitai - te tango i te hāora i te rino whakarewa memeha nei i roto i reira, me te reira whakarei ake nga āhuatanga pūkaha o te whakarewa. Hei kawe i tenei tukanga, te AV86 kōeke tino whakamahia nuitia a AV97F.