Zvimiro zvekudziya zvinhu zvinowanzo shandiswa mune ekupedzisira-yepamusoro tembiricha yemagetsi emagetsi:

Molybdenum: Inowanzo shandiswa muchoto chevacuum sintering pa1600 ° C, iyo volatilization inomhanya kusvika 1800 ° C pasi pevacuum, uye kuvhuvhuta kunoderedzwa mumhepo inodzivirira yehydrogen nekuda kwekumanikidza zvinhu, uye inogona kushandiswa kusvika 2000 ° C. ;

Tungsten: Inowanzo shandiswa muchoto chevacuum sintering pa 2300 ° C, iyo volatilization inokurumidza kukurumidza kana mhepo inosvika 2400 ° C, kusvibiswa kunopera simba mumhepo yekudzivirira hydrogen nekuda kwekumanikidza zvinhu, uye inogona kushandiswa pa2500 ° C);

Tantalum: Inowanzo shandiswa muchoto chevacuum sintering pa2200°C. Kusiyana netungsten uye molybdenum, tantalum haigone kushanda mumhepo ine hydrogen nenitrogen. Kubatsira kwayo ndeyekuti machining performance uye welding performance zviri nani pane izvo zve tungsten uye molybdenum;

Graphite: Inowanzo shandiswa muchoto chevacuum sintering pa2200 ° C, iyo volatilization inomhanya kusvika 2300 ° C muvacuum, uye kuvhuvhuta kwakadzikira nekuda kwekumanikidza mumhepo inodzivirira (inert gas), inogona kushandiswa pa2400 °. C;

1. Tantalum inoshandiswa zvakanyanya muvacuum furnaces nekuda kwekunaka kwayo machining performance uye welding performance. Zvisinei, nekuda kwekushisa kwayo kwekushanda kwe 2200 ° C uye kusakwanisa kwayo kushandisa mukudzivirira gasi, inoderedza kushandiswa kwayo. Simbi dzinoramba dzakaita se tantalum ne niobium dzinotora huwandu hukuru hwemaatomu ehydrogen mumhepo yehydrogen, uye zvinokonzeresa kuparuka kwehydrogen kana yatonhodzwa. Simbi dzakadai se niobium uye tantalum dzinowanzoita embrittlement munzvimbo ye hydrogen pakupisa kwakanyanya, saka haigoni kudzivirirwa nehydrogen.

Ndeupi rudzi rwekudzivirira gasi rinogona kushandiswa netantalum kuderedza volatilization? Pamusoro pekushandiswa kweArgon kudzivirira uye argon-hydrogen yakasanganiswa gasi kudzivirira, chero gasi risingaite ne tantalum panguva yekupisa kupisa kupisa kurapwa, inogona kushandiswa sekudzivirira kwemhepo. Kugadzikana kweargon kuri nani pane iyo nitrogen. Nekudaro, iyo inertness yenitrogen ine hukama, ndiko kuti, haina kukodzera kune mamwe maitiro. Magnesium inogona kupisa munitrogen. Nokudaro, zvichida mhinduro haigoni kushandisa nitrogen semhepo inodzivirira, asi inogona kungosarudza argon. Maitiro ekugadzira tungsten block yakavharwa ne tantalum zvinhu: Inogona kuwanikwa neplasma yekupfapfaidza tantalum layer pamusoro peiyo tungsten zvinhu pasi pekuchengetedzwa kweargon atmosphere.

2. Tungsten Nokuti tungsten ine yakanaka-yepamusoro-tembiricha kushanda, nekuvandudzwa uye kuvandudzwa kwekugadzira uye kugadzira tekinoroji, tungsten inoshandiswa zvakanyanya muvacuum yakakwirira-yekushisa mavira. Iko hakuna dambudziko nekushandiswa kwe tungsten muchoto pazasi 2300 ℃. Pa2300 ℃, iyo volatilization ichakwidziridzwa, izvo zvinokanganisa hupenyu hwebasa remuviri wekudziya. Nokudaro, inowanzokurudzirwa kushandisa hydrogen protective atmosphere pa 2200 ~ 2500 ℃;

3. Graphite heat element inoshandiswa pakudziisa graphite muvacuum furnace. Iyo yakakwirira-kuchena, yakakwirira-simba, isotropically yakaumbwa isotropic matatu-yakakwirira graphite, kana zvisina kudaro yakavimbika yepamusoro-tembiricha kuita, kushanda kwemagetsi uye hupenyu hwebasa hauzowanikwe.

4. Muchoto chepakati uye chakadzika tembiricha yekudzivirira, nekuda kwekushisa kwakadzika, tungsten haiwanzo kushandiswa, kazhinji chete graphite, tantalum, uye molybdenum ndiyo inoshandiswa; kune mavira ari pasi pe1000 ℃, nickel-cadmium zvinhu uye iron-chromium-aluminium zvinhu zvinoshandiswa zvakare. Mira.