Tungsten carbide. The thupi katundu, kawopsedwe, ntchito

Tungsten carbide (dzina lina - tungsten monocarbide) - mankhwala pawiri wa tungsten, mpweya, ndi ziwiya zadothi. mankhwala ndi imodzi mwa zamphamvu zoumbaumba onse odziwika ndi kuuma ofanana diamondi: HRC kuzungulira 90 mayunitsi pa Mohs Mohs ali malo chinayi. China zabwino wa tungsten carbide ndi zabwino avale kukana, mkulu limatsogolera kutentha ndi kukana kwambiri kwa makutidwe ndi okosijeni. Nkhanizi tsopano chimagwiritsidwa ntchito kuti akonze kudula chida pachimake ndi zida kuboola zipolopolo.

thupi katundu wa carbide tungsten

1. Pa zinthu zachilendo, ndi granular tungsten carbide ufa ndi imvi zachitsulo Sheen.

2. sungunuka m'madzi.

3. Rockwell kuuma mayunitsi kuchokera 87 mpaka 92.

4. limatsogolera kutentha kwa carbide tungsten ndi madigiri 2.870.

5. The kachulukidwe ndi 15,8 g / santimetr³.

6. modulus zotanuka ndi 450 ÷ 650 GPa

7. Mmene kutentha wofanana 8.4 +/- 0.2 kkalory / mol

8. mphamvu zosagwiritsika ntchito muyezo ndi 8.5 +/- 1.5 zopatsa mphamvu / (Mole pa digiri).

9. kutentha winawake pa kutentha wofanana madigiri 293 ndi 8,53 zopatsa mphamvu / (Mole pa digiri).

10. matenthedwe madutsidwe pa yozungulira kutentha ndi madigiri 25 0,07 cal / (masentimita / s / ° C).

11. matenthedwe kuwonjezeka koyefishienti ndi 3,84 (3,9) * 106 1 deg.

12. resistivity magetsi pa kutentha madigiri 200 ndi 19,2 +/- 0,3 microohm / cm.

13. The madutsidwe magetsi a zinazake ndi 52200 Ohm-1 * masentimita-1.

Kapangidwe tungsten carbide

The pakalipano mitundu iwiri WC - β-WC mkulu-kiyubiki ndi hexagonal α-WC.

Ntchito carbide tungsten

- pa luso kupanga zida zimene ziyenera kukhala kuuma mkulu ndi zabwino dzimbiri kukana;

- kuti avale zosagwira surfacing mbali zosiyanasiyana opareshoni mu avale wolemetsa pafupifupi katundu mantha;

- ankagwiritsa ntchito mu kupanga zida zosiyanasiyana kudula, akufa pochita, akupera mawilo, kubowola Akamva kuti kuboola mphero ndi zipangizo zina kudula;

- mtengo wa tungsten amalola ntchito kasakaniza wazitsulo zosiyanasiyana (izo wapangidwa ndi kasakaniza wazitsulo zovuta, amadziwika pansi pa dzina "Kupambana" ndi "Relit" 90%);

- ntchito kupopera matenthedwe ndi surfacing mu mawonekedwe a ufa zinthu yopangira kumva kuwawa zosagwira zokutira;

- ndi imodzi mwa zipangizo ntchito m'malo chromium plating ndondomeko electroplating mkulu-liwiro lawi kupopera;

- carbide panopa tungsten ndi wamphamvu kwambiri kupanga projectiles ndi zida kuboola zipolopolo mitima (Komabe, pali chizolowezi cha kusamutsidwa mwapang'onopang'ono tungsten carbide Du) ;

- kupanga mikanda kopitilira muyeso wa 1 mamilimita kwa makola ballpoint (kupukuta imagwiridwa mu zida wapadera kwa masiku angapo, ntchito pang'ono diamondi phala);

- mu kupanga zibangili kwa ulonda osankhika Swiss, zodzikongoletsera - mphete, zibangili ndi pakhosi zosonyeza, omwe chifukwa cha avale kulimbikira carbide tungsten kungakupatseni luster wosatha;

- ntchito ngati chotengera kwa pulatinamu chothandizira;

- tungsten carbide ntchito polenga mapeto zisindikizo migodi ena asilikali pa nthawi imene chilengedwe ali ndi kukhuthala mkulu ndi / kapena abrasiveness.

Tungsten carbide kawopsedwe

Nkhanizi ndi mankhwala inert. Pachifukwa ichi, zinthu zachilendo, zilibe angabweretse choopsa chilichonse kwa anthu. Mlingo woopsa si kumatanthauza kaya anthu kapena zinyama. Maphunziro akhala akufufuza pa Dresden zaumisiri ndi University ya Leipzig, anasonyeza kuti sprayed tungsten carbide amatha kulowa mu zamoyo. M'menemo particles chabwino si a poizoni, koma pamene pamodzi ndi zinthu zina nawonso ndi kuopsa kwa wellbeing maselo. Pamene ngongole afika cobalt fumbi ndi tiganizire chinthu m'thupi angathe fibrosis.