Kachulukidwe wapamwamba, mawonekedwe abwino kwambiri ndi machinability, kukana kwa dzimbiri kwapadera, modulus yayikulu ya elasticity, kuchititsa chidwi kwamafuta komanso kukulitsa kwamafuta ochepa. Timapereka: ma aloyi athu a tungsten heavy metal.
"Zolemera" zathu zimagwiritsidwa ntchito, mwachitsanzo, m'mafakitale oyendetsa ndege ndi ndege, ukadaulo wamankhwala, mafakitale opangira magalimoto ndi zoyambira kapena pobowola mafuta ndi gasi. Mwachidule tikuwonetsa zitatu mwa izi pansipa:
Ma aloyi athu a tungsten heavy metal W-Ni-Fe ndi W-Ni-Cu ali ndi kachulukidwe kwambiri (17.0 mpaka 18.8 g/cm3) ndipo amapereka chitetezo chodalirika ku radiation ya X-ray ndi gamma. Onse a W-Ni-Fe ndi zinthu zathu zopanda maginito W-Ni-Cu amagwiritsidwa ntchito poteteza mwachitsanzo pazachipatala komanso m'makampani amafuta ndi gasi. Monga ma collimator pazida zochizira ma radiation amawonetsetsa kuwonetseredwa kolondola. Pakulinganiza zolemetsa timagwiritsa ntchito kachulukidwe kakang'ono kwambiri ka aloyi athu a tungsten heavy metal. W-Ni-Fe ndi W-Ni-Cu amakulitsa pang'ono pa kutentha kwakukulu ndikuchotsa kutentha makamaka bwino. Monga momwe nkhungu zimayika pazitsulo za aluminiyamu, zimatha kutenthedwa mobwerezabwereza ndikuzizizira popanda kuphulika.
Mu njira ya Electrical Discharge Machining (EDM), zitsulo zimapangidwira molunjika kwambiri pogwiritsa ntchito magetsi otuluka pakati pa chogwirira ntchito ndi electrode. Maelekitirodi a mkuwa ndi ma graphite akalephera kugwira ntchito, ma elekitirodi a tungsten-copper osamva amatha kupanga makina ngakhale zitsulo zolimba popanda zovuta. M'madzi opopera a plasma opangira zokutira, zinthu zakuthupi za tungsten ndi mkuwa zimagwirizananso bwino.
zitsulo zolemera za tungsten zitsulo zimakhala ndi zigawo ziwiri. Panthawi yopanga magawo awiri, porous sintered maziko amapangidwa koyamba kuchokera ku chigawo chokhala ndi malo osungunuka kwambiri, mwachitsanzo chitsulo chosungunuka, ma pores otseguka asanayambe kulowetsedwa ndi chigawo chosungunuka ndi malo osungunuka otsika. The katundu wa munthu zigawo zikuluzikulu amakhalabe zosasintha. Akayang'aniridwa pansi pa microscope, katundu wa gawo lililonse akupitiriza kuonekera. Pamlingo wa macroscopic, komabe, zinthu zamagulu amunthu zimaphatikizidwa. Monga zitsulo zosakanizidwa, zinthu zatsopanozi zimatha, mwachitsanzo, kukhala ndi matenthedwe atsopano komanso kukulitsa kwamafuta.
Zitsulo zamadzimadzi-sintered tungsten-heavy zitsulo zimapangidwa kuchokera ku chisakanizo cha ufa wachitsulo mu njira imodzi yopangira nthawi yomwe zigawo zomwe zimakhala ndi malo otsika osungunuka zimasungunuka pa omwe ali ndi malo osungunuka kwambiri. Panthawi ya binder, zigawozi zimapanga ma alloys ndi omwe ali ndi malo osungunuka kwambiri. Ngakhale kuchuluka kwa tungsten, komwe kumakhala ndi malo osungunuka kwambiri, kumasungunuka panthawi ya binder. Plansee's liquid phase sintered composite zipangizo zimapindula ndi kachulukidwe ka tungsten chigawo, modulus ya elasticity ndi kuthekera kuyamwa X-ray ndi gamma cheza popanda kuvutika ndi zovuta zilizonse zogwirizana ndi processing wa tungsten koyera Mosiyana, coefficient of matenthedwe kukula ndi matenthedwe ndi magetsi madutsidwe wa madzi gawo-sintered zigawo zikuluzikulu zimadalira kwambiri pa zikuchokera nawo binder gawo.
Zida zoponyera kumbuyo nthawi imodzi zimaphatikiza zinthu zakuthupi zamitundu iwiri yosiyana. Panthawiyi, zipangizozo zimasungidwa mu chikhalidwe chawo choyambirira ndipo zimangomangidwa pamtunda wochepa kwambiri. Zitsulozo zimasakanizidwa mu nkhungu kupanga chomangira cha ma micrometer ochepa kukula kwake. Mosiyana ndi njira zowotcherera ndi zowotcherera, njira iyi ndiyokhazikika komanso imawonetsetsa kuti matenthedwe amayendetsedwa bwino.
Zogulitsa Zotentha za Tungsten Heavy Alloys
