Tungsten wire inogadzirwa sei?

Kunatsa tungsten kubva kuore hakugone kuitwa nekunyungudika kwechinyakare sezvo tungsten iine nzvimbo yepamusoro yekunyungudika yechero simbi. Tungsten inotorwa kubva mu ore kuburikidza nenhevedzano yemakemikari maitiro. Maitiro chaiwo anosiyana nemugadziri uye kuumbwa kweore, asi ores inopwanyika yogochwa uye / kana kutumirwa kuburikidza neakasiyana emakemikari maitiro, kunaya, uye washing kuti uwane ammonium paratungstate (APT). APT inogona kutengeswa nekutengesa kana kuenderera mberi kugadziridzwa kuita tungsten oxide. Tungsten oxide inogona kugochwa mumhepo yehydrogen kugadzira yakachena tungsten hupfu nemvura sechigadzirwa. Tungsten poda ndiyo inotangisa zvigadzirwa zve tungsten chigayo, kusanganisira waya.

Zvino zvatine pure tungsten hupfu, tinoita sei waya?

1. Kudzvanya

Tungsten poda inosefa uye yakasanganiswa. A binder inogona kuwedzerwa. Nhamba yakatarwa inoyerwa uye inotakurwa muforoma yesimbi iyo inotakurwa mumuchina. Hupfu hunoumbwa kuita bhara rakabatana, asi risina kusimba. Iyo mold inobviswa uye bar inobviswa. Mufananidzo pano.

2. Kuparidzira

Iyo bhawa isina kusimba inoiswa muchikepe chesimbi chinobatika uye chinotakurwa muchoto chine hydrogen atmosphere. Kupisa kwepamusoro kunotanga kubatanidza zvinhu pamwe chete. Material inenge 60% - 70% yehuwandu hwakazara, ine zvishoma kana pasina zviyo kukura.

3. Full Sintering

Bhawa inotakurwa mubhodhoro rakakosha rekurapa rakatonhodzwa nemvura. Magetsi emagetsi achapfuura nepabhawa. Kupisa kunoitwa neiri ikozvino kuchaita kuti bhawa riwedzere kusvika pa85% kusvika 95% yehuwandu hwakazara uye kuderera ne15% kana zvakadaro. Uyezve, tungsten makristasi anotanga kuumba mukati mebhari.

4. Kukwenya

Iyo tungsten bar ikozvino yakasimba, asi yakanyanya brittle pakudziya kwekamuri. Inogona kuitwa kuti iwedzere kuumbika nekukwidza tembiricha yayo kusvika pakati pe1200°C kusvika 1500°C. Pakupisa uku, bhari rinogona kupfuudzwa kuburikidza neswager. A swager mudziyo unodzikisira dhayamita yetsvimbo nekuipfuura nepafafi iyo yakagadzirirwa kurova tsvimbo pakurova kunosvika zviuru gumi paminiti. Kazhinji swager inoderedza dhayamita ne12% pakupfuura. Swaging inorebesa makristasi, ichigadzira chimiro chefibrous. Kunyangwe izvi zvichidikanwa mune chigadzirwa chakapedzwa che ductility uye simba, panguva ino tsvimbo inofanira kunge ichinetseka-yakadzikidzwa nekupisa. Kukwenya kunoenderera kusvika tsvimbo yava pakati pe .25 ne .10 inches.

5. Kudhirowa

Waya yakagezwa ingangoita .10 inches zvino inogona kudhonzwa kuburikidza nedhisi kuderedza dhayamita. Waya inozodzwa uye inodhonzwa kuburikidza nekufa kwe tungsten carbide kana diamondi. Izvo chaizvo zvinoderedza dhayamita zvinoenderana nemakemikari chaiwo uye kushandiswa kwekupedzisira kwetambo. Sezvo waya inodhonzwa, fiber zvakare inorebesa uye kusimba kunowedzera. Pane dzimwe nhanho, zvingave zvakafanira kuti anneal waya kuti ubvumire imwe gadziriso. Waya inogona kudhonzwa zvakanaka se .0005 inches mudhayamita.