Njira ya Sintering Tungsten Carbide

Monga tonse tikudziwa, tungsten carbide ndi imodzi mwazinthu zovuta kwambiri zomwe zimagwiritsidwa ntchito m'makampani amakono. Kuti apange tungsten carbide, iyenera kukhala ndi njira zingapo zamafakitale, monga kusakaniza ufa, mphero yonyowa, kuyanika utsi, kukanikiza, sintering, ndi cheke chaubwino. Pakuwotcha, voliyumu ya simenti ya carbide idzachepa ndi theka. Nkhaniyi ndi yoti mudziwe zomwe zidachitika ndi tungsten carbide panthawi ya sintering.

Pa sintering, pali magawo anayi omwe tungsten carbide ayenera kukhala nawo. Ali:

1. Kuchotsedwa kwa woumba ndi sitepe yoyaka moto;

2. Gawo lokhazikika la sintering;

3. Madzi-gawo sintering siteji;

4. Kuzizira siteji.

1. Kuchotsedwa kwa woumba ndi sitepe yoyaka moto;

Pochita izi, kutentha kuyenera kuwonjezeka pang'onopang'ono, ndipo gawoli limachitika pansi pa 1800 ℃. Kutentha kumawonjezeka, chinyezi, gasi, ndi zosungunulira zotsalira mu tungsten carbide yopanikizidwa zimasanduka nthunzi pang'onopang'ono. Wopangirayo amawonjezera kuchuluka kwa kaboni mu sintering simenti carbide. M'mitundu yosiyanasiyana, kuchuluka kwa carbide kumakhala kosiyana. Kupsinjika maganizo pakati pa ufa wa particles kumachotsedwanso pang'onopang'ono panthawi ya kuwonjezeka kwa kutentha.

2. Olimba-gawo sintering siteji

Pamene kutentha kukuwonjezeka pang'onopang'ono, sintering ikupitirirabe. Gawoli limachitika pakati pa 1800 ℃ ndi kutentha kwa eutectic. Zomwe zimatchedwa kutentha kwa eutectic zimatanthawuza kutentha kotsika kwambiri komwe madzi amatha kukhalapo m'dongosolo lino. Gawoli lipitilira kutengera gawo lomaliza. Kuthamanga kwa pulasitiki kumawonjezeka ndipo thupi la sintered limachepa kwambiri. Panthawiyi, kuchuluka kwa tungsten carbide kumachepa mwachiwonekere.

3. Madzi gawo sintering siteji

Panthawi imeneyi, kutentha kumakwera mpaka kufika kutentha kwambiri mu sintering, kutentha kwa sintering. Pamene gawo lamadzimadzi likuwonekera pa tungsten carbide, kuchepa kumatha msanga. Chifukwa cha kusamvana pamwamba pa madzi gawo, ufa particles kuyandikira wina ndi mzake, ndi pores mu particles pang'onopang'ono wodzazidwa ndi madzi gawo.

4. Kuzizira siteji

Pambuyo pa sintering, carbide yopangidwa ndi simenti imatha kuchotsedwa mu ng'anjo ya sintering ndikukhazikika mpaka kutentha. Mafakitole ena adzagwiritsa ntchito kutentha kwa zinyalala mu ng'anjo ya sintering kuti agwiritse ntchito matenthedwe atsopano. Panthawiyi, pamene kutentha kumatsika, microstructure yomaliza ya alloy imapangidwa.

Sintering ndi njira yovuta kwambiri, ndipo zzbetter imatha kukupatsirani tungsten carbide yapamwamba kwambiri. Ngati muli ndi chidwi ndi zinthu za tungsten carbide ndipo mukufuna zambiri ndi zambiri, mutha KULUMIKIZANA NAFE pa lamya kapena makalata kumanzere, kapena KUTITUMIZIRA MAIL pansi pa tsambali.