IHE BERYllium-ọla kọpa alloy

Ngwakọta nke beryllium-ọla kọpa Alloys

Ọla kọpa Beryllium na-enye nguzogide corrosion dị elu, conductivity eletriki na thermal conductivity, gbakwunyere ike dị elu na iguzogide oke okpomọkụ.Ndị na-abụghị ndị na-egbuke egbuke na ndị na-abụghị magnetik, ọ bara uru na ọrụ Ngwuputa na petrochemical.Site na nguzogide dị elu na ike ọgwụgwụ, a na-ejikwa ọla kọpa beryllium maka isi iyi, njikọ na akụkụ ndị ọzọ na-ebunye cyclical.

Brazing beryllium ọla kọpa adịghị ọnụ ma dị mfe ịrụ ọrụ na-eme ka ọ ghara ibelata alloy.Beryllium-ọla kọpa alloys dị na klas abụọ: ike dị elu C17000, C17200 na C17300;na elu-conductivity C17410, C17450, C17500 na C17510.Ọgwụgwọ okpomọkụ na-ewusi alloys ndị a ike.

Metallurgy

Okpomọkụ na-ekpo ọkụ maka alloys beryllium-ọla kọpa na-adịkarị karịa okpomoku na-eme ka afọ sie ike yana ihe dị ka okpomọkụ na-ekpo ọkụ.

 

Usoro izugbe maka ọgwụgwọ ikpo ọkụ beryllium-ọla kọpa na-eso:

 

Nke mbụ, a ghaghị ikpochapụ ihe ngwọta.A na-arụzu nke a site n'ịgbasa alloy ahụ n'ime ngwọta siri ike ka ọ wee dịrị maka usoro nkwụsị afọ.Mgbe emechara ihe ngwọta, a na-ajụkwa alloy ngwa ngwa n'ime ụlọ site na imenyụ mmiri ma ọ bụ iji ikuku mmanye mee akụkụ ndị dị mkpa.

 

Nzọụkwụ na-esonụ bụ afọ hardening, bụ nke sub-microscopic, siri ike, beryllium bara ụba irighiri ihe na metal matriks.Oge ịka nká na okpomọkụ na-ekpebi ọnụọgụ na nkesa nke ihe ndị a n'ime matriks.Nsonaazụ na-abawanye ike nke alloy.

Klas alloy

1. Ọla kọpa beryllium dị elu - A na-azụkarị ọla kọpa Beryllium na ọnọdụ ngwọta-annealed.Anneal a nwere ikpo ọkụ ruo 1400-1475°F (760-800°C), na-esochi ya ngwa ngwa.Enwere ike imezu brazing ma ọ bụ n'ụdị ọnọdụ okpomọkụ na-eme ka ahụ dị jụụ - nke na-esote quench-ma ọ bụ site na ikpo ọkụ ngwa ngwa n'okpuru ebe a, na-enweghị emetụta ọnọdụ ngwọta-ekpochapụ.A na-emepụta iwe ọkụ site na ịka nká na 550-700°F (290-370°C) maka awa abụọ ruo atọ.Na ihe ndị ọzọ beryllium alloys nwere cobalt ma ọ bụ nickel, ọgwụgwọ okpomọkụ nwere ike ịdị iche.

 

2. High-conductivity beryllium ọla kọpa - Ihe mejupụtara nke a na-ejikarị eme ihe na ụlọ ọrụ bụ 1.9% beryllium-balance ọla kọpa.Agbanyeghị, enwere ike inye ya ihe na-erughị 1% beryllium.N'ebe enwere ike, a ga-eji obere ọdịnaya beryllium arụ ọrụ maka nsonaazụ brazing kacha mma.Anneal site na kpo oku ruo 1650-1800°F (900-980°C), menyụọ ngwa ngwa.A na-emepụta iwe ọkụ site na ịka nká na 850-950°F (455-510°C) maka otu awa ruo asatọ.

 

Nhicha

Ịdị ọcha dị mkpa maka ịhịa aka n'ahụ nke ọma.Tupu ihicha elu braze-faying iji wepụ mmanụ na griiz dị mkpa maka ịmekọrịta nke ọma.Rịba ama na a ga-ahọrọ ụzọ nhicha na-adabere na mmanụ ma ọ bụ griiz chemistry;Ọ bụghị usoro nhicha niile na-adị irè n'otu aka ahụ n'iwepụ mmanụ na/ma ọ bụ mmanụ griiz niile.Chọpụta ihe na-efe efe dị n'elu, ma kpọtụrụ onye nrụpụta maka ụzọ nhicha kwesịrị ekwesị.Nchacha abrasive ma ọ bụ pickling acid ga-ewepụ ngwaahịa oxidation.

 

Mgbe ihicha ihe ndị mejupụtara, braze ozugbo na flux iji nye nchebe.Ọ bụrụ na a ga-echekwa ihe mejupụtara ya, enwere ike iji electroplate nke ọla edo, ọla ọcha ma ọ bụ nickel kpuchie akụkụ ya ruo 0.0005 ″ (0.013 mm).Enwere ike iji plating mee ka mmiri dị n'elu beryllium-ọla kọpa site na ndochi igwe.Ma ọla kọpa na ọlaọcha nwere ike ịgbanye 0.0005-0.001" (0.013-0.025mm) iji zoo oxides siri ike na mmiri mmiri nke ọla kọpa beryllium mere.Ka emechara brazing, were mmiri ọkụ ma ọ bụ ịhịa aka n'ahụ wepụ ihe ndị fọdụrụ ka ọ ghara imebi.

Nleba anya imewe

Mwepu nkwonkwo kwesịrị ikwe ka mmiri gbapụ ma nyekwa ikike zuru oke, dabere na kemịkalụ-metal a họọrọ.Mwepu nke uwe kwesịrị ịbụ 0.0015-0.005" (0.04-0.127mm).Iji nyere aka n'ịchụpụ flux site na nkwonkwo-karịsịa ụdị nkwonkwo ndị ahụ na-eji warara ma ọ bụ nkewa nke mbụ mee ihe-mmegharị nke elu elu n'akụkụ nke ọzọ na/ma ọ bụ vibration nwere ike tinye n'ọrụ.Cheta ịgbakọ mkpochapụ maka imewe nkwonkwo dabere na okpomọkụ brazing a tụrụ anya ya.Na mgbakwunye, ọnụọgụ mgbasawanye nke ọla kọpa beryllium bụ 17.0 x 10-6/°C.Tụlee ụdị nsogbu na-ekpo ọkụ mgbe ị na-ejikọta ọla ndị nwere ihe mgbasa ọkụ dị iche iche.

 


Oge nzipu: Sep-16-2021