Core Kuumbwa kweSilicon Carbide Zvidhinha
Iyo "siginicha fomula" yesilicon carbide zvidhinha inoda kunyatsoita, senge kubika keke:
- Silicon carbide particles: 60% -90% zvinyorwa; kuchena mazinga anoraira kupisa conductivity uye kushora kuramba.
- Binder system: Sarudzo yevhu, silica sol, kana resin; inosarudza kuumba simba uye sintering basa.
- Tsvagurudza zvinowedzerwa: Silicon metal poda inosimudzira kusaita oxidation, nepo zvisingawanzoitiki-maokisi epasi anovandudza kusimba kwepamusoro-kudzikama.
Iyo "Magic Moments" muKugadziridza
Zvishamiso zvinoitika kana zvigadzirwa zvinosangana nekupisa kwakanyanya:
- Kuumba nhanho: Compression molding pa200-300 MPa; density deviation inofanira kuramba iri pasi pe0.5%.
- Kuomesa chikamu: Kuomesa zvishoma nezvishoma pa 80℃kwemaawa makumi mana nemasere; hunyoro hunofanirwa kudzorwa pasi pe0.3%.
- Sintering kiyi: Kupfura pa1450 dhigirii pasi pemhepo yenitrogen kwemaawa gumi nemasere kunovimbisa kusanganiswa kwakakwana kwesilicon carbide miganhu yezviyo.
Kusiyana kwakasiyana-siyana kweFormula
Silicon carbide zvidhinha zvekushandisa zvakasiyana zvakafanana nemasutu akagadzirirwa:
- Metallurgical bricks: >85% yesilicon carbide yemukati ine silicon metal coating; inopa kupikisa kwakasimba kukukurwa kwe slag.
- Ceramic kiln furniture: Porous structure yakasanganiswa ne low thermal expansion formula; inoshingirira kukurumidza kupisa bhasikoro (thermal shock).
- Makemikari linings: Boron carbide yakawedzerwa kuwedzera kuoma; inowedzera hupenyu hwebasa kurwisana nemaasidhi uye alkalis nekatatu.