AMS 5772 Haynes 188 Bar

Haynes 188 (UNS R30188, W.Nr. 2.4683) yog ib qho khoom siv -solution-strengthened cobalt-nickel-chromium-tungsten-raws li alloy. Ib qho tshwj xeeb ntawm cov khoom siv no yog cov kab keeb lanthanum (La)-a 0.03% lanthanum cov ntsiab lus suav nrog "cov mis tshwj xeeb" ntawm Alloy 188.

Raws li peb lub xyoo dhau los ntawm kev ua haujlwm nrog cov khoom siv no, peb qhov kev xav zoo tshaj plaws yog qhov no: nws yog "champion of oxidation resistance" ntawm cobalt-raws li alloys. Thaum lwm cov ntaub ntawv tuaj yeem ua tiav lawv cov nplai oxide ntawm 1093 degree, Alloy 188 khaws nws cov txheej txheem tiv thaiv. AMS 5772 tus qauv ua haujlwm raws li cov lus qhia tshwj xeeb rau Alloy 188 hauv daim ntawv tuav, forgings, thiab rings; Nws feem ntau yog siv rau hauv kev siv aerospace xws li fasteners, turbine disks, thiab cov khoom siv txhawb nqa.

Dab tsi ua rau Haynes 188 "tsawg dua- tiv taus ntau dua li kev sib tw"? Muaj 7 qhov laj thawj tseem ceeb:

1. Lanthanum (0.03–0.12%) - Alloy 188's "Exclusive Formula."
Tsuas yog muab tso, thaum lub oxide nplai ntawm lwm cov alloys zoo li flake tawm ntawm qhov kub siab tshaj 1000℃ntawm qhov me ntsis kov, lub oxide nplai ntawm Alloy 188 yog "loj" mus rau lub substrate - nws tsis detach. Qhov no yog qhov ua haujlwm tshwj xeeb ua los ntawm cov feem me me (ob peb puas ntawm ib feem pua) ntawm lanthanum.

2. Cobalt Base - Lub Foundation rau Kub Corrosion Resistance
Nrog rau cov ntsiab lus cobalt ntawm kwv yees li 37-39%, Alloy 188 muaj qhov muaj peev xwm tiv taus sulfide thiab chloride-induced kub corrosion- xws li pom nyob rau hauv qis -qib roj combustion ib puag ncig los yog saline tej yam kev mob (xws li, marine daim ntaub ntawv)-uas yog superior rau cov nickel alloys.

3. Tungsten (14–16%) + Chromium (21–23%) - Ib qho -Ob Punch ntawm Solid Solution Strengthening
Qhov kev sib xyaw tshwj xeeb no ua rau Alloy 188 tswj kev ua haujlwm ruaj khov ntawm qhov kub txog li 1095 degree.

4. Cov tshuaj tiv thaiv kom muaj zog - Tsis xav tau kev kho mob laus; Npaj siv tam sim tom qab vuam

5. Tsawg-Tsub Toughness - Serviceable Txawm ntawm -185 degree
Ib qho kev saib tsis tu ncua ntawm Alloy 188 yog nws qhov tsis tshua muaj siab - qhov kub thiab txias cuam tshuam lub zog: txawm tias ntawm -185 degree, nws lub zog cuam tshuam tseem siab txog 158 joules. Qhov no qhia tau hais tias nws muaj zog tsis kam mus rau qis-kub los cuam tshuam loading. Yog tias koj xav tau cov khoom siv hlau siv rau hauv qhov chaw ib puag ncig lossis cov khoom siv ua haujlwm ntawm cov kua nitrogen kub, Alloy 188 yog qhov kev xaiv zoo tshaj.

6. Intermediate-Tsuas Kub Embrittlement (650–870 degree) - Ib qho teeb meem uas yuav tsum tau hais meej meej pem hauv ntej
Thaum raug "baking" ntev li ntawm 650-870℃qhov kub thiab txias, Alloy 188 yuav maj mam ua nkig. Yog tias koj cov khoom tsim nyog rau kev ua haujlwm ntev - lub sijhawm ua haujlwm nyob rau hauv qhov tshwj xeeb qhov kub thiab txias, kev tshuaj xyuas ib ntus raug pom zoo.

7. Cov Kev Txwv Tsis Pub Siv -Qhov no, ib yam nkaus, yuav tsum tau qhia meej meej.

Alloy 188 yog qhov cuam tshuam rau kev txo qis hauv huab cua (xws li hydrogen thiab carbon monoxide), vim tias cov yeeb yaj kiab oxide tiv thaiv raug puas tsuaj nyob rau hauv ib puag ncig zoo li no. Nws kuj tseem muaj kev cuam tshuam rau kev sib kis los ntawm qis- melting- cov ntsiab lus hlau (xws li tooj liab, aluminium, thiab zinc); Thaum qhov kub thiab txias, cov hlau no tuaj yeem nkag mus raws li cov ciam teb, ua rau embrittlement. Yog tias koj qhov kev ua haujlwm muaj feem cuam tshuam nrog cov khoom no, cov khoom siv no tsis haum.

Xya tus yam ntxwv tau teev tseg saum toj no ua rau lub ntiaj teb ua lag luam tus nqi ntawm Haynes 188 alloy tsis tu ncua siab; Nws cov nqi taug qab ze nrog kev lag luam rau cobalt, npib tsib xee, thiab tungsten, uas ua rau muaj kev cuam tshuam loj heev. Tsis tas li ntawd, cov nqi ua haujlwm tseem ceeb heev - tus nqi machining rau Haynes 188 yog kwv yees li peb mus rau tsib npaug ntawm cov hlau tsis muaj steel. Ntxiv mus, cov ntaub ntawv ua tau raws li cov qauv aerospace AMS 5772, AMS 5608, thiab AMS 5801 xav tau kev cai ntau lawm, txhais tau tias tsis muaj cov khoom npaj tau yooj yim ntawm lub khw qhib.

Customization Kev Sib Tham

(UNS R30188 / AMS 5772) Cov.

(AMS 5772 Bar, Kev daws-Kho mob)

Qhov no yog ib tug yam ntxwv ntawm Haynes 188: thaum nws muaj kuj zoo machinability rau ib tug cobalt-raws li alloy, nws yog ho nyuaj rau tshuab dua stainless hlau. Peb xav kom cov ntsiab lus no meej pem hauv ntej rau leej twg xav yuav cov khoom no.

1. Kub ua haujlwm- Qhov rai qhov rais nqaim; Precise Temperature Control Required

Thaum kub ua hauj lwm Alloy 188, qhov kub yuav tsum tau tsa saum toj no 1175 degree; ua hauj lwm ntawm qhov kub thiab txias yuav ua rau tawg. Zoo li L605, nws yog cov khoom xav tau los daws.

2. Ua haujlwm txias- Kev ua haujlwm nrawm nrawm; Intermediate Annealing yuav tsum tau

3. Vuam- Kev paub tab; Tshaj tawm -Kev kho cua sov feem ntau tsis tas yuav tsum tau ua

4. Kev kho cua sov- Kev kho mob yog ib kauj ruam tseem ceeb thiab tsis tuaj yeem tshem tawm

Kev ua tau zoo ntawm Alloy 188 yog nyob ntawm kev kho cov tshuaj. Peb feem ntau muab cov khoom siv hauv kev daws teeb meem - kho mob.

Cov lus pom zoo rau kev xaiv qhov xwm txheej:

• Rau cov ntawv thov uas yuav tsum tau siv dav hauv machining lossis vuam → Kev daws teeb meem - kho mob
• Rau cov khoom siv uas yuav tsum tau muaj zog dua, h → Txias ua hauj lwm raws li kev laus kho yog ib qho kev xaiv; Txawm li cas los xij, thov nco ntsoov qhov txo qis hauv ductility.

5. Machining- Nyuaj dua Stainless Hlau; Kev npaj kom raug yog qhov tseem ceeb
Thaum lub sij hawm machining ntawm Alloy 188, txiav - ntug kub ua siab heev; Yog li ntawd, kev ua kom txias txaus yog qhov tseem ceeb heev. Machining cov nqi yog kwv yees li 3 mus rau 5 npaug ntau dua li cov hlau tsis muaj steel; thaum npaj cov lus hais, peb yuav muab cov nqi no rau hauv kev suav raws li koj qhov kev xav tau tshwj xeeb.

Ua ntej peb muab cov lus hais rau koj, sib tham txog cov lus nug tseem ceeb hais txog AMS 5772, Haynes 188, thiab Bard yuav pab ua kom peb cov txheej txheem hais tawm sai:

Daim ntawv: Round Bar, Square Bar, Hexagonal Bar, Forgings (Nplhaib, Discs)

Dimensions: Raws li txoj kab uas hla 10–300 mm; Length Tsawg dua lossis sib npaug li 6000 mm

Qhov xwm txheej: Kev daws teeb meem-Kho (Txoj Kev Xa Khoom)

Nto tiav: Dub, tig, av

Cov txheej txheem melting: Puas yog ob qho - txheej txheem nqus tsev (VIM + VAR)? Feem ntau xav tau rau kev siv aerospace.

Nco tseg:Peb cov neeg siv khoom yav dhau los hauv kev lag luam aviation tau ua tsis tu ncua cov khoom siv prototyping thiab kev sim nruj heev -nrog rau ntau qhov kev ua piv txwv- kom ntseeg tau tias txhua yam teeb meem yuav raug daws ua ntej kev yuav khoom. Yog tias koj tseem yog ib tus kws tshaj lij kev lag luam aerospace xav tau cov khoom siv rau kev sim, thov tsis txhob yig tiv tauj peb.

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