Tungsten carbide. Ke kino ai ka waiwai, kaʻawahia, ka hoʻohana 'ana o

Tungsten carbide (kekahi inoa - tungsten monocarbide) - he Nine Inch hui o tungsten, kalapona, a me ka pālolo. Kēia waiwai a pau o kekahi o ka ikaika o nā mea a pau pālolo ike me ka paakiki like ke daimana: HRC mea puni 90 huahelu ma Mohs Mohs ninoaaeyao iwa o ka wahi. Kekahi maikaʻi hiʻona o ka tungsten carbide mea he maikai Wear ia'ku, kiʻekiʻe mahele heheʻe i ka mahana a me ka maikaʻi ia'ku i ka'okesaside. Keia mea ua manawa hoʻomano hoʻohana i ka hana i ka ohi paahana kāna mau 'ōlelo a me ka mea kaua-hou leho.

Helu waiwai o ka tungsten carbide

1. Malalo o maʻamau rula, he granular tungsten carbide pauka mea he poʻo mea hao sheen.

2. wailana i loko o ka wai.

3. Rockwell paʻakikī o ka mai 87 a hiki i 92 iniha, kapuaʻi.

4. ka mahele heheʻe i ka mahana o ka tungsten carbide o 2.870 degere.

5. ka pa apŘ o 15,8 g. / Santimetr³.

6. ka laholio modulus He 450 ÷ 650 GPa

7. kanawai o ka wela like ia 8,4 +/- 0.2 kkalory / Mol

8. ka entropy hae o 8.5 +/- 1.5 calories / (kameleona no degere).

9. Ka 'ilepili wela i ke ana wela like i 293 degere mea 8,53 calories / (kameleona no degere).

10. Thermal conductivity ma Ambient wela o ka 25 degere mea 0,07 cal / (knm / s / ° C).

11. ka thermal? Aiey kaʻi lau waiwai He 3,84 (3,9) * 106 1 DEG.

12. ka uila resistivity i ka wela o ka 200 degere mea 19,2 +/- 0,3 microohm / knm.

13. ka uila conductivity o ka papa o 52200 Ohm-1 * knm-1.

'Ole tungsten carbide

Na Ke ike mau ano o WC - β-WC kiʻekiʻe-cubic a me hexagonal α-WC.

E ho ohana i ka tungsten carbide

- ma ke akamai i ka hana ana o na mea paahana, a pono i kiʻekiʻe paakiki a me ka maikai ka popopo e kū'ē'ē mai;

- no ka Wear-hoʻopale surfacing o ka wahi likeʻole e e hoʻohana i kaumaha Wear i ka awelike hawewe wahie;

- hoʻomano hoʻohana 'ia i loko o ka hana o ka likeʻole ana mea paahana,? Eou, wili huila,ʻepekema'āpana no kaʻeli, mīkini wili pōhaku a me nā ana hana;

- i ke kāki o tungsten e leie aku ka hana o ka oka a pau i loko o nā kula (ka mea, ua haku o ka paakiki oka a pau,ʻikeʻia ma lalo o ka inoa "A ia la aku" a me ka "Relit", ma kahi o 90%);

- hoʻohana 'ia i loko o thermalʻawa, a surfacing ma ke ano o ka ka pauka mea no ka hana abrasion-hoʻopale ka paleʻana;

- o kekahi o nā mea hoʻohana e puku chromium plating kaʻina electroplating ke kiʻekiʻe-ka māmā holo lapalapaʻawa;

- Ke tungsten carbide mea Hoʻohaku i loko o ka hana o ka lele, a me nā mea kaua hou pōkā Kora naʻEsau (nō naʻe, he mea i ka welelau o ka gradual pohupani hale o tungsten carbide Du) ;

- i loko o ka? Iecaianoaaiiie o kaʻoi loa lei o ka 1 mm o no ballpoint mńka (anaiia ua hana i loko o ka kūikawā i hoʻomākaukauʻia no kekahi mau lā, ka hoʻohana 'ana i ka uuku nui o ka daimana kāpili ma luna);

- i loko o ka hana ana o na kupee lima no ka waiwai Hawaiian kiaʻi, Jewelry - apo, kūpeʻe lima a me pendants, i aie i ka Wear ia'ku o tungsten carbide ua hoʻohiki alohilohi mau loa;

- hoʻohana like me ka lawe i ka platinum hōʻeleu;

- tungsten carbide hoʻohana e hana i ka hopena sila mau pua o kekahi maomeka ma na hihia ma ka papa i ke kiʻekiʻe (viscosity), a / a abrasiveness.

Tungsten carbide kaʻawahia

Kēia mea i chemically inert. No keia mea, i loko o maʻamau rula, ka mea, 'aʻole i ho oweliweli i kekahi pilikia i kānaka. Ke lethal mahele lāʻau ua i ho'ākāka 'ia kekahi no kānaka a no na holoholona. Haʻawina i i ua mālama 'ia ma ka Dresden E noa ka a me ka University o Leipzig, hoike mai i kaʻawa tungsten carbide ke komo i loko o ola meaola. Ma ke aha ke olonā (particles) e ole-ʻawahia, akā, i ka wa a hui me kekahi mau waiwai ka mea, he weliweli no ka wellbeing o aeee. I ka aie loaʻa cobalt ka lepo, a e noonoo mākou i ka waiwai i loko o ke kino e hoʻomōhala fibrosis.