Ukuxutywa kweBeryllium-Copper Alloys

I-Beryllium yobhedu inika ukuxhathisa okuphezulu kwe-corrosion, ukuhanjiswa kombane kunye ne-thermal conductivity, kunye namandla aphezulu kunye nokuchasana nobushushu obuphezulu.I-Non-sparking and non-magnetic, iluncedo kwimigodi kunye namashishini e-petrochemical.Ngokuchasana okuphezulu nokukhathala, i-beryllium yobhedu isetyenziselwa imithombo, izihlanganisi kunye nezinye iindawo eziphantsi komthwalo we-cyclical.

I-brazing beryllium yobhedu ayibizi kwaye yenziwa ngokulula ngaphandle kokwenza buthathaka ialloy.I-Beryllium-copper alloys ifumaneka kwiiklasi ezimbini: i-C17000 ephezulu, i-C17200 kunye ne-C17300;kunye ne-high-conductivity C17410, C17450, C17500 kunye neC17510.Unyango lwe-thermal luqinisa ngakumbi ezi alloys.

Isinyithi

Amaqondo obushushu obushushu be-beryllium-ingxubevange yobhedu aqhelekile ngaphezu kobushushu obuqina ngokweminyaka kwaye buphantse bulingane neqondo lobushushu bokulinganisa isisombululo.

Amanyathelo ngokubanzi okunyanga ubushushu beryllium-alloys yobhedu alandelayo:

Okokuqala, i-alloy kufuneka ihlanjululwe.Oku kufezwa ngokunyibilikisa i-alloy kwisisombululo esiqinileyo ngoko kuya kufumaneka kwisinyathelo sokuqina kweminyaka.Emva kwesisombululo se-annealing, i-alloy ipholiswa ngokukhawuleza kwiqondo lokushisa kwegumbi ngokucinywa kwamanzi okanye ukusebenzisa umoya onyanzelekileyo kwiindawo ezincinci.

Isinyathelo esilandelayo kukuqina kweminyaka, apho i-sub-microscopic, i-hard, i-beryllium-rich-rich particles yenziwa kwi-matrix yesinyithi.Ixesha lokuguga kunye nobushushu bumisela inani kunye nokusabalalisa kwezi ngqungquthela ngaphakathi kwe-matrix.Isiphumo kukunyuka kwamandla e-alloy.

Iiklasi ze-alloy

1. Ubhedu oluphezulu lwe-beryllium - i-beryllium yobhedu idla ngokuthengwa kwimeko yesisombululo-annealed.Le anneal iquka ukufudumeza ukuya kwi-1400-1475 ° F (760-800 ° C), ilandelwa kukucima ngokukhawuleza.I-Brazing inokufezekiswa nokuba kwisisombululo-i-annealing range-developed yi-quench-okanye ngokufudumeza ngokukhawuleza kakhulu ngaphantsi kolu luhlu, ngaphandle kokuchaphazela isisombululo-imeko edibeneyo.Umsindo ke uveliswa ngokuguga kwi-550-700 ° F (290-370 ° C) kwiiyure ezimbini ukuya kwezintathu.Ngolunye uhlobo lwe-beryllium alloys equkethe i-cobalt okanye i-nickel, unyango lobushushu lunokwahluka.

2. I-copper ye-beryllium ephezulu-conductivity - Ukubunjwa okusetyenziswa kakhulu kwishishini yi-1.9% ye-beryllium-balance copper.Nangona kunjalo, inokubonelelwa ngaphantsi kwe-1% ye-beryllium.Apho kunokwenzeka, i-alloy encinci-beryllium-content kufuneka iqeshwe ngezona ziphumo zingcono zokubrawuza.I-Anneal ngokufudumeza kwi-1650-1800 ° F (900-980 ° C), ilandelwa kukucima ngokukhawuleza.Umsindo ke uveliswa ngokuguga kwi-850-950 ° F (455-510 ° C) kwiyure enye ukuya kwezisibhozo.

Ukucoca

Ucoceko lubalulekile ukuze uphumelele ukubraya.Ukucoca kwangaphambili imiphezulu yebraze-faying ukususa i-oyile kunye negrisi kubalulekile ekuziqhelaniseni kakuhle.Qaphela ukuba iindlela zokucoca kufuneka zikhethwe ngokusekelwe kwi-oyile okanye i-grease chemistry;ayizizo zonke iindlela zokucoca zisebenza ngokufanayo ekususeni zonke iioli kunye / okanye igrisi engcolisa.Chonga isingcolisi esingaphezulu, kwaye uqhagamshelane nomvelisi ngeendlela ezifanelekileyo zokucoca.Ukuxutywa kwe-abrasive okanye i-asidi pickling kuya kususa iimveliso ze-oxidation.

Emva kokucoca amacandelo, gcoba ngokukhawuleza nge-flux ukubonelela ngokhuseleko.Ukuba amacandelo kufuneka agcinwe, iinxalenye zinokukhuselwa nge-electroplate yegolide, isilivere okanye i-nickel ukuya kwi-0.0005" (0.013 mm).I-Plating ingasetyenziselwa ukuququzelela ukumanzisa kwe-beryllium-copper surface ngentsimbi yokuzalisa.Zombini ubhedu kunye nesilivere zinokufakwa kwi-0.0005-0.001″ (0.013-0.025mm) ukufihla i-oxides enzima-ukumanzi eyenziwe yi-beryllium yobhedu.Emva kokugqabhuka, susa iintsalela ze-flux ngamanzi ashushu okanye ukuxubha ngomatshini ukunqanda ukubola.

Ukuqwalaselwa koyilo

Ukucocwa ngokudibeneyo kufuneka kuvumele i-flux ukubaleka kwaye ibonelele nge-capillarity eyaneleyo, ngokuxhomekeke kwikhemistry ye-filler-metal ekhethiweyo.Ukukhutshwa okufanayo kufuneka kube yi-0.0015-0.005″ (0.04-0.127mm).Ukunceda ekususeni indawo eguquguqukayo ukusuka kumalungu-ingakumbi ezo ziyilo ezidibeneyo ezisebenzisa istrip esele ibekwe ngaphambili okanye i-strip preforms-intshukumo yomnye ojiyileyo ngokubhekisele komnye kunye/okanye ukungcangcazela kungasetyenziswa.Khumbula ukubala ukucocwa koyilo oludibeneyo ngokusekelwe kubushushu obulindelekileyo bokubrawuza.Ukongeza, i-beryllium coefficient yokwandiswa kobhedu yi-17.0 x 10-6/°C.Cinga ngoxinzelelo olubangelwa yi-thermal xa udibanisa iintsimbi ezineempawu ezahlukeneyo zokwandisa i-thermal.