Mitundu ya Reaction Bonded Silicone Carbide (RBSiC/SiSiC)

Mitundu ya ZochitaSilicone Carbide Yogwirizana (RBSiC/SiSiC)

Pakadali pano, pali makampani ambiri opanga zinthu za Reaction Bonded SIC kumakampani osiyanasiyana. Shandong Zhongpeng Special Ceramics Co., Ltd iyenera kukhala imodzi mwa makampani abwino kwambiri ogulitsa zinthu zosiyanasiyana za Reaction Bonded SIC, monga Nozzle ndi zina monga magetsi, ziwiya zadothi, uvuni, chitsulo ndi chitsulo, mgodi, malasha, alumina, mafuta, mankhwala, wet desulphurization, kupanga makina, ndi mafakitale ena apadera padziko lonse lapansi.

Reaction Bonded SIC ingagawidwe m'magulu awiri:silicon carbide yolumikizidwa ndi reaction-bondndisilicon carbide yopangidwa ndi reaction, malingana ngati choyambira chopanda kanthu chili ndi tinthu ta silicon carbide.

Kabide ya silikoni yolumikizidwa ndi reaction

Kabide ya silicon yolumikizidwa ndi reaction-bonded imatanthauza njira yopangira silicon carbide composite. Ndi pamene choyambira chopanda kanthu chimakhala ndi ufa wa silicon carbide. Mu njira yochitira reaction, kaboni ndi silicon zimachitapo kanthu kuti zipange gawo latsopano la silicon carbide ndipo zimasakanikirana ndi silicon carbide yoyambirira. Njira yokonzekera ndi iyi, yomwe ndi njira yomwe imagwiritsidwa ntchito kwambiri:

Kusakaniza ufa wa silicon carbide, ufa wa carbon ndi chomangira chachilengedwe;

Kupanga chisakanizocho kukhala chouma ndi chomasuka;

Pomaliza, kupeza silicon carbide yolumikizidwa ndi reaction kudzera mu silicon infiltration.

Kabide ya silicon yolumikizidwa ndi reaction-bonded yomwe imapangidwa ndi njira iyi nthawi zambiri imakhala ndi tinthu ta kristalo ta coarse silicon carbide komanso silicon yaulere yambiri. Komabe, njira iyi ili ndi njira yosavuta komanso yotsika mtengo. Pakadali pano,

Kabide ya silikoni yopangidwa ndi reaction

Choyambira cha silicon carbide chopangidwa ndi reaction chimakhala ndi carbide yokha. Choyambira cha carbon yokhala ndi porous chimayatsidwa ndi silicon kapena silicon alloy kuti apange zinthu zopangidwa ndi silicon carbide. Njirayi idapangidwa koyamba ndi Hucke. Njira ya Hucke ilinso ndi zovuta zake. Njira yake yokonzekera ndi yovuta kwambiri. Mtengo wa njira iyi ndi wokwera. Nthawi yomweyo, mpweya wambiri umasintha pakagwa kutentha. Izi zimapangitsa kuti China isweke mosavuta. Chifukwa chake, njira iyi ndi yovuta kwambiri kupanga zinthu zazikulu.

Kuphatikiza apo, petroleum coke imagwiritsidwa ntchito ngati zopangira pokonzekera ma carbon slabs onse, kenako silicon carbide imapangidwa. Komabe, makhalidwe a zipangizo zomwe zakonzedwa ndi otsika. Mphamvu yake nthawi zambiri imakhala yotsika kuposa 400mpa. Kufanana kwa silicon carbide yomwe yapezeka sikwabwino. Chifukwa cha mtengo wotsika wa petroleum coke, mtengo wa njira iyi ndi wotsika.

Snkhani

Poyerekeza ndi njira zina zokonzekera za silicon carbide ceramics, njira yolumikizirana ndi reaction ili ndi zabwino zake zapadera. Pakadali pano, kafukufuku m'derali amayang'ana kwambiri pakuphunzira njira yopangira sintering ndi mawonekedwe a kapangidwe ndi mawonekedwe a zinthuzo. Komabe, kafukufuku wokhudza kupanga zopanda kanthu ndi wochepa. Ngakhale pali maphunziro ambiri okhudza njira yopangira reaction pakati pawo, pali maphunziro ochepa pa permeability kinetics, reaction mechanism ndi kapangidwe ka gawo la zinthu za alloying process. Pali maphunziro ochepa pakukonzekera zipangizo zomwe zili ndi makhalidwe ndi kapangidwe kowongoleredwa pogwiritsa ntchito silicon infiltration ndi zipangizo zina. Mbali izi zikufunikabe kuphunziridwa.