Kev nyab xeeb siv txoj kev ntawm crucible to tswb ntaus ntawv ntawm hlau melting rauv

The crucible leakage alarm device of the hlau melting rauv is necessary to ensure safe production, prevent the occurrence and expansion of furnace leakage accidents, help judge the use of the furnace lining, and prolong the furnace age. It is necessary to set up a crucible leakage alarm system. Generally, a direct current alarm device is used to install the stainless steel wire bottom electrode (first electrode) in contact with the molten iron and the stainless steel plate (mesh) side electrode (second electrode) between the induction coil of the furnace lining. Connect the electrode leads to the alarm device. When the molten metal leaks to the side electrode, the current rises to the set value, and the alarm device is activated. During the installation of the alarm device, it is necessary to check whether the connection between the lead wire and the electrode is good; whether the lead wire is grounded (resistance to ground> 5kC). During operation, sometimes the stainless steel wire melts at the bottom of the furnace. You can insert a conductive rod into the molten iron and use a multimeter to measure it. If the stainless steel wire is disconnected in the furnace lining, the alarm system will fail and it can only be laid when the furnace is rebuilt next time. After the alarm occurs, check whether it is a false alarm (false alarms mainly include: induced potential interference, lead wire grounding, and furnace lining wet). If the false alarm is eliminated, the furnace lining can be determined to be damaged.

Cov txheej txheem tshiab ntawm cov hlau melting rauv yog nyob rau theem pib ntawm melting ntawm lub qhov cub hauv ob sab phlu. Vim lub adsorption ntawm dej thiab nag lossis daus ntawm boric acid siv lead ua dej nyob rau saum npoo ntawm lub hauv ob sab phlu, qhov tsis kam ntawm lub hauv ob sab phlu txo, thiab kev nyeem ntawv ntawm lub tswb ammeter nce. Thaum nws siab, tus nqi tswb tuaj yeem ncav cuag, tab sis tam sim no feem ntau nce maj mam nyob rau lub sijhawm no. Tom qab ob peb lub cub tawg tau yaj, nws yuav maj mam txo thiab rov qab mus rau qhov qub, uas tuaj yeem txawv ntawm lub tswb nrov tam sim no. Qee lub sij hawm lub tswb tam sim no, uas tau poob qis thaum lub sij hawm ziab, tau pib nce ntxiv. Lub sijhawm no, lub cub tawg tau raug tshuaj xyuas thiab pom tau tias vim kev ua haujlwm tsis tu ncua, cov khoom siv hlau txuas ntxiv ua rau qis qis hlau melting kub kom nce siab thiab tshaj qhov kub ntawm sintering. (Tshaj li 1600 ° C), tag nrho cov hauv ob sab hauv lub qhov cub yog sintered nrog tsuas yog ib qho hnyav vitrified thiab tawv sintered txheej, tsis muaj txheej hloov pauv thiab xoob txheej, yog li ua rau lub qhov cub tawg. Lub sijhawm no, lub tswb nrov ntawm lub qhov cub tawg yog qhov tseeb. Lub 3t nruab nrab zaus smelting rauv siv lwm lub tswb, ib qho los ntawm ib qho av to kom pom cov cuab yeej. Cov cuab yeej muaj xws li ib qho kev kuaj pom hauv av txuas nrog lub hwj chim thiab ib qho kev sojntsuam hauv av uas nyob hauv qhov cub. Yog tias cov kua dej sib cuag nrog lub kauj, qhov kev sojntsuam hauv av yuav ua rau lub kauj tam sim no mus rau hauv av, thiab qhov kev sojntsuam hauv av yuav ntes nws thiab txiav nws tawm. Fais fab mov los nres qhov arc tawg ntawm lub kauj thiab tiv thaiv cov kua alloy los ntawm kev nqa high voltage. Lub tes tuav hauv av to taub soj ntsuam cov cuab yeej siv tau los nquag thiab tsis tu ncua xyuas seb cov av to hauv av ntawm lub qhov cub puas zoo li qub thiab txhim khu kev qha kom ntseeg tau tias cov av xau hauv av yog tag nrho hauv av, kom muaj kev nyab xeeb ntawm tus neeg teb xov tooj thiab cov neeg siv khoom. cub tawg yog guaranteed.