IBrass eKhanyayo ePhakamileyo

Ubhedu olukhokelayo
Ilothe ngokwenene ayinakunyibilika ngobhedu kwaye isasazwa kwimida yengqolowa kwimeko yamasuntswana asimahla.Ngokombutho wayo, ubhedu olukhokelayo luneentlobo ezimbini: α kunye (α + β).Ngenxa yeziphumo ezinobungozi zelothe, ubhedu lwe-alpha-lead lunobushushu obuphantsi kakhulu beplastiki, ngoko bunokukhubazeka okubandayo okanye kushushu kukhutshwe.(α + β) Ubhedu olukhokelayo luneplastiki elungileyo kwiqondo lokushisa eliphezulu kwaye lunokwenziwa.

Ubhedu lwenkcenkce
Ukongeza i-tin kubhedu kunokuphucula kakhulu ukumelana nobushushu be-alloy, ngakumbi ukukwazi ukuxhathisa ukubola kwamanzi olwandle, ngoko ubhedu lwe-tin lubizwa ngokuba "yi-navy brass".
I-Tin inokunyibilika kwisisombululo esiqinileyo esisekelwe kubhedu kwaye idlale isiphumo esiqinileyo sokuqinisa isisombululo.Kodwa ngokunyuka komxholo we-tin, i-brittle r-phase (i-CuZnSn compound) iya kubonakala kwi-alloy, engabandakanyi ukuguqulwa kweplastiki ye-alloy, ngoko umxholo we-tin we-tin yobhedu ngokubanzi kuluhlu lwe-0.5% ukuya. 1.5%.
Ngokuqhelekileyo i-tin brasses i-HSn70-1, i-HSn62-1, i-HSn60-1 kunye nokunye.Eyangaphambili i-alpha alloy, eneplastiki ephezulu kwaye inokucutshungulwa ngoxinzelelo olubandayo kunye nobushushu.Ama-alloys amabakala amabini okugqibela ane (α + β) isakhiwo sesigaba sesibini, kunye nenani elincinci le-r-phase lihlala likhona, kwaye iplastiki kwiqondo lokushisa legumbi aliphezulu, kwaye inokukhubazeka kuphela kwindawo eshushu. urhulumente.

Ubhedu lweManganese
IManganese inokunyibilika okukhulu kubhedu oluqinileyo.Ukongeza i-1% ukuya kwi-4% ye-manganese kubhedu inokunyusa kakhulu amandla kunye nokumelana nokubola kwe-alloy ngaphandle kokunciphisa iplastiki yayo.
I-Manganese yobhedu inesakhiwo (α + β), kwaye i-HMn58-2 isetyenziswa ngokuqhelekileyo, kunye nokusebenza kwayo koxinzelelo phantsi kweemeko ezibandayo kunye nezishushu zilungile.

Ubhedu lwentsimbi
Kwintsimbi yobhedu, isinyithi sigqithisa ngamasuntswana esigaba esityebileyo, esisebenza njenge-crystal nuclei yokucoca i-crystal grains kunye nokuthintela ukukhula kweenkozo ezihlaziyiweyo, ngaloo ndlela kuphuculwe iimpawu zomatshini kunye nokusebenza kwenkqubo ye-alloy.Umxholo wesinyithi kwintsimbi yentsimbi ngokuqhelekileyo ingaphantsi kwe-1.5%, isakhiwo sayo (α + β), sinamandla amakhulu kunye nokuqina, iplastiki enhle kumaqondo aphezulu, kwaye inokukhubazeka kwiimeko ezibandayo.Ibakala elisetyenziswa ngokuqhelekileyo yi-Hfe59-1-1.

Ubhedu lwenikelo
I-nickel kunye nobhedu lunokwenza isisombululo esiqinileyo esiqhubekayo, esandisa kakhulu ummandla we-α-phase.Ukongezwa kwe-nickel kwi-brass kunokuphucula kakhulu ukuxhathisa kwe-corrosion yobhedu emoyeni kunye namanzi olwandle.I-Nickel inokunyusa ubushushu bobhedu kunye nokukhuthaza ukubunjwa kweenkozo ezintle.
I-HNi65-5 i-nickel brass ine-single-phase α isakhiwo, esineplastiki efanelekileyo kwiqondo lokushisa lokushisa kwaye inokukhubazeka phantsi kweemeko ezishushu.Nangona kunjalo, umxholo welothe yokungcola kufuneka ulawulwe ngokungqongqo, okanye uya kuphazamisa kakhulu ukusebenza okushushu kwe-alloy.