Entwodiksyon nan kalite founo elektrik

Endistriyèl rezistans gwo founo dife
② Akòz rezistans relativman ti materyèl la tèt li, yo nan lòd yo reyalize pouvwa chofaj elektrik ki nesesè, aktyèl la k ap travay se byen gwo, kidonk elektwòd transmisyon pouvwa a ak materyèl la ta dwe an kontak bon pou evite arcing ak boule materyèl la, ak rezistans nan otobis transmisyon pouvwa a ta dwe piti diminye pèt sikwi; Pifò rezistans founo se endirèk chofaj rezistans, ki ekipe ak yon rezistans ki fèt espesyalman pou reyalize konvèsyon chalè elektrik, ki rele yon aparèy chofaj elektrik, ki transfere enèji chalè nan materyèl yo nan gwo founo dife a.
Koki founo elektrik sa a fèt ak plak asye, epi founo a aliyen ak materyèl refractory tankou fib seramik, ak materyèl mete andedan.
Eleman chofaj ki pi souvan itilize yo se eleman chofaj fè Kwòm aliminyòm, eleman chofaj nikèl Kwòm, baton carbure Silisyòm, baton disilisid molybdène, ak baton kabòn Silisyòm, eleman chofaj zirkonyòm diboride seramik konpoze. Dapre bezwen yo, atmosfè a nan gwo fou a ka yon atmosfè òdinè, atmosfè pwoteksyon, oswa vakyòm. Vòltaj ekipman pou pouvwa jeneral la se 220 V oswa 380 V. Si sa nesesè, se yon transfòmatè entèmedyè ak vòltaj reglabl configuré. Ti founo (<10 kW) single-phase power supply, large furnace three-phase power supply. For materials with a single variety and a large batch size, continuous furnace heating should be used. For resistance furnaces with furnace temperatures below 700 □, most are equipped with blowers to enhance heat transfer in the furnace and ensure uniform heating. Resistance furnaces for melting fusible metals (lead, lead bismuth alloys, aluminum, magnesium, and their alloys) can be made into crucible furnaces; Or it can be made into a reverberatory furnace with a molten pool, and an electric heating body is installed on the top of the furnace. Electroslag furnace is a resistance furnace that realizes electrothermal transformation by dissolving slag (see Electroslag Remelting).