Abubuwan da aka yi amfani da su na Beryllium-Copper Alloys

Tagulla na Beryllium yana ba da juriya mai girma, juriya na lantarki da yanayin zafi, da ƙarfin ƙarfi da juriya ga yanayin zafi.Ba mai haskakawa ba kuma maras maganadisu, yana da amfani a cikin ma'adinai da masana'antar petrochemical.Tare da babban juriya ga gajiya, ana kuma amfani da jan ƙarfe na beryllium don maɓuɓɓugan ruwa, masu haɗawa da sauran sassan da ke ƙarƙashin ɗaukar nauyi na cyclical.

Brazing beryllium jan ƙarfe ba shi da tsada kuma yana da sauƙin yi ba tare da raunana gami ba.Beryllium-Copper Alloys suna samuwa a cikin nau'i biyu: C17000 mai ƙarfi, C17200 da C17300;da high-conductivity C17410, C17450, C17500 da C17510.Jiyya na thermal yana ƙara ƙarfafa waɗannan gami.

Karfe

Yanayin zafin jiki na beryllium-Copper Alloys yawanci sama da yanayin zafin shekaru masu taurin kai kuma kusan iri ɗaya da zafin zafi mai raɗaɗi.

Matakan gaba ɗaya don maganin zafi na beryllium-copper alloys bi:

Da farko, dole ne a goge maganin da ake amfani da shi.Ana cim ma wannan ta hanyar narkar da gami a cikin ingantaccen bayani don haka zai kasance samuwa ga matakin ƙarfafa shekaru.Bayan warwarewar, gami da sauri ana kwantar da ita zuwa zafin daki ta hanyar kashe ruwa ko amfani da iska mai ƙarfi don sassa na bakin ciki.

Mataki na gaba shine taurin shekaru, ta yadda ake samar da ƙananan ƙananan ƙwayoyin cuta, masu wuya, barbashi masu arzikin beryllium a cikin matrix ɗin ƙarfe.Lokacin tsufa da zafin jiki sun ƙayyade adadin da rarraba waɗannan barbashi a cikin matrix.Sakamakon yana ƙara ƙarfin haɗin gwiwa.

Alloy Classes

1. High-ƙarfi beryllium jan karfe - Beryllium jan karfe ana saya kullum a cikin bayani-annealed yanayin.Wannan anneal ya ƙunshi dumama zuwa 1400-1475°F (760-800°C), sannan kuma mai saurin kashewa.Za'a iya cika brazing ko dai a cikin kewayon zafin jiki mai raɗaɗi-mai bi ta quench-ko ta saurin dumama ƙasa da wannan kewayon, ba tare da shafar yanayin da aka warware ba.Ana samar da zafin ta hanyar tsufa a 550-700F (290-370°C) na tsawon awanni biyu zuwa uku.Tare da sauran abubuwan haɗin beryllium masu ɗauke da cobalt ko nickel, maganin zafi na iya bambanta.

2. High-conductivity beryllium jan karfe - Abubuwan da aka fi amfani da su a masana'antu shine 1.9% beryllium-ma'auni na jan karfe.Koyaya, ana iya ba da shi da ƙasa da 1% beryllium.Inda zai yiwu, ya kamata a yi amfani da ƙaramin abun ciki na beryllium don mafi kyawun sakamako na brazing.Anneal ta dumama zuwa 1650-1800F (900-980°C), mai saurin kashewa.Ana haifar da zafin ta hanyar tsufa a 850-950°F (455-510°C) na awa ɗaya zuwa takwas.

Tsaftacewa

Tsafta yana da mahimmanci don cin nasara brazing.Pre-tsaftace saman braze-faying don cire mai da mai yana da mahimmanci ga kyakkyawan haɗin gwiwa.Yi la'akari da cewa ya kamata a zabi hanyoyin tsaftacewa bisa ga sinadaran mai ko mai;Ba duk hanyoyin tsaftacewa suke da tasiri iri ɗaya ba wajen cire duk mai da/ko gurɓataccen mai.Gano gurɓataccen ƙasa, kuma tuntuɓi masana'anta don ingantattun hanyoyin tsaftacewa.Gwargwadon gogewa ko tsinken acid zai cire samfuran iskar oxygen.

Bayan tsaftace abubuwan da aka gyara, yi tagulla kai tsaye tare da ruwa don samar da kariya.Idan dole ne a adana abubuwan da aka gyara, ana iya kiyaye sassan da lantarki na zinariya, azurfa ko nickel zuwa 0.0005" (0.013 mm).Ana iya amfani da plating don sauƙaƙe jiko na beryllium-jan karfe ta hanyar filler.Dukansu jan karfe da azurfa za a iya sanya su 0.0005-0.001 ″ (0.013-0.025mm) don ɓoye oxides mai wuya-zuwa-jika da aka samar da tagulla na beryllium.Bayan gyaran gyare-gyare, cire ragowar ruwa tare da ruwan zafi ko gogewa na inji don guje wa lalata.

La'akarin Zane

Tsare-tsare na haɗin gwiwa yakamata ya bar juzu'i ya tsere sannan kuma ya samar da isasshen ƙarfi, ya danganta da sinadarai-ƙarfe da aka zaɓa.Matsakaicin Uniform ya kamata ya zama 0.0015-0.005 ″ (0.04-0.127mm).Don taimakawa wajen kawar da juzu'i daga haɗin gwiwa-musamman waɗannan ƙirar haɗin gwiwa waɗanda ke amfani da tsiri da aka riga aka sanya ko tsiri preforms-motsi na saman fayafai ɗaya dangane da ɗayan da/ko rawar jiki ana iya amfani da su.Tuna don ƙididdige ƙididdigewa don ƙirar haɗin gwiwa dangane da zafin brazing da ake tsammani.Bugu da ƙari, ƙimar faɗaɗawar beryllium jan ƙarfe shine 17.0 x 10-6/°C.Yi la'akari da nau'ikan da ke haifar da thermal yayin haɗa karafa tare da kaddarorin haɓaka yanayin zafi daban-daban.