High maitai tere. Ko tōna āhuatanga, me te whakarōpū

I tčnei wā, tonu nui-tere maitai ki hei te rauemi ārahi mō te hanga o ngā nozzles whakarewa me te taputapu whakairo. E pinepine taua alloys whakamahia i roto i te hanga o kani mīhini, ngā akoako, me ngā akoako mahi upoko. Ahakoa putanga inaianei te whānui o nga mea katoa o te carbide timahia me ngā rauemi hiato uku ki te whakarato noa rahi mahi tukatuka, nui-tere steels taputapu mau ratou tūranga momo.

Ko te whakamahi whānui o taua alloys mo te hanga o taputapu matatini-tapahi tika ki te huinga i roto i nei tiketike kaha (ki runga, ki te 68 HRC) me ngāwhā u (e kore ratou e ngaro ratou āhuatanga mahi noa i te pāmahana o te 650 ° C) ki te uara pokey tiketike, tawhiti rawa e o mo ngā rauemi hiato carbide . Ano, nui-tere maitai he urutau tino nui, e te tikanga pou tarāwaho pai, me te pēhanga tukanga whakairo.

He aha ngā āhuatanga ka whai he ti'aturi i runga i ngā huānga alloying i te koranu taua. Tikanga, nui-tere maitai ko te pūnaha multicomponent kei roto chromium, molybdenum, Tungsten, hinu, me vanadium. Ko te aroaro o te ngā wāhanga, me te ratou ihirangi i roto i ngā ōrau tohua i roto i te tapanga. konei te tikanga o te reta P e te parahi, ko te tere tiketike, te tokomaha muri tohu te ihirangi Tungsten i roto i te ōrau. Atu reta rawea te aroaro o te tahi atu huānga alloying, me nga tau e haere mai ana i muri i te pukapuka - ōrau ratou hautanga taimaha i roto i te koranu. Ko te kupu, ko te M reta tohu te aroaro o molybdenum i te pūnaha, F - vanadium K - konukurahina, A - hauota.

E ai ki te ihirangi o te tere dopants parahi kia whakarōpūtia ki Tungsten, molybdenum, Tungsten me molybdenum. He rōpū motuhake tohaina konganuku kongatia ki konukurahina. Kei te nuinga o taua alloys whakamahia i roto i te hanga o taputapu mō te te machining wāhanga uaua o superalloys. High tere maitai, koranu te nuinga te tikanga vanadium mo te hanga o taputapu pera-ka karanga "mutunga" mutu - broaches, reamers me ētahi atu.

Ko te tino noa, me te pea te whakamahia te waitohu matamua o tiketike-tere maitai P18 mo te hanga o te āhua me te matatini threading taputapu. Te tikanga te puka paerewa mō te tukatuka kounga tiketike o te whakarewa e hanga te nuinga o P9 waitohu koranu. Mai i reira te mahi i mira, kaihahau, me te rite.

Na roto i te mahi pāmahana steels tere tikanga e wehea ki ngā kāwai e toru: alloys ki ātete wera noa, tiketike, a ka tiketike. Ki te rōpū tuatahi no Tungsten (R18, R9) me Tungsten-molybdenum (R6M5). E whakamahia ana ēnei tohu i roto i te tukatuka o konganuku kore-ferrous, steels hanganga , me te maka rino.

Hoki ngā rauemi o te kāwai tuarua āhuatanga e te ihirangi tiketike rawa o te konukurahina, vanadium me te waro. Ko te waitohu tino rongonui i roto i te rōpū - R6M5F3. Vanadium maitai āhuatanga e ātete kākahu teitei. Ratou drawback nui anake - kino te faaanaana, no te mea kahore he iho ki te tohu rite te pakeke o carbides vanadium elektrokorundovogo huri wira.

I te pae hopea, te kāwai tuatoru o te parahi āhuatanga e ōrau iti o te ihirangi waro, hanga tika ratou mo te maimoatanga o te wera-ātete, kowiri tira me te Titanium alloys. Ko tētahi atu āhuatanga āhuatanga o ratou - he maha nui o ngā huānga alloying. Ki tenei rōpū ngā taua rama rite 3V20K20H4F, V11M7K23 et al.