W Type 9-18mm Heating Elements 1700 ℃

MoSi2 heating element is a kind of resistance heating element with high temperature resistance and oxidation resistance based on molybdenum disilicide. When used in high-temperature oxidizing atmosphere, like other Si based high-temperature resistant materials, MoSi2 surface will quickly form a bright and dense quartz (SiO2) glass film under high temperature and oxygen atmosphere, which can protect the inner layer of silicon molybdenum rod from further oxidation. Therefore, MoSi2 heating element has unique high-temperature oxidation resistance.

The resistivity of MoSi2 increases rapidly with the increase of temperature under the oxidizing atmosphere and the service temperature is about 1700 ℃. Under normal circumstances, the element resistance does not change with the length of service time. Therefore, the old and new MoSi2 heating elements can be mixed.

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Effect Of Different Atmosphere On Element Temperature

Atmosphere	Maximum Element Temperature
Atmosphere	Heating 1700 Grade
Air	1700℃
Nitrogen	1600℃
Argon, Helium	1600℃
Hydrogen	1100-1450℃
N2/H2 95/5%	1250-1600℃

Parameters

_{Lu \ Le}	315	334	410	500	620	730	800	820	1000
470	5904	6562	7468	8949	10925	12736	13889	14218	17181
	0.078	0.087	0.099	0.118	0.144	0.168	0.184	0.188	0.227
	21.5	23.9	27.2	32.5	39.7	46.3	50.5	51.7	62.5
500	5938	6597	7502	8984	10960	12771	13923	14252	17216
	0.079	0.087	0.099	0.119	0.145	0.169	0.184	0.188	0.228
	21.6	24.0	27.3	32.7	39.9	46.4	50.6	51.8	62.6
520	5961	6620	7525	9007	10983	12794	13946	14275	17216
	0.079	0.088	0.100	0.119	0.145	0.169	0.184	0.189	0.228
	21.7	24.1	27.4	32.8	39.9	46.5	50.7	51.9	62.7
560	6007	6666	7571	9053	11029	12840	13992	14321	17285
	0.079	0.088	0.100	0.120	0.146	0.170	0.185	0.189	0.229
	21.8	24.2	27.5	32.9	40.1	46.7	50.9	52.1	62.9
580	6030	6688	7594	9076	11052	12863	14015	14344	17308
	0.080	0.088	0.100	0.120	0.146	0.170	0.185	0.190	0.229
	21.9	24.3	27.6	33.0	40.2	46.8	51.0	52.2	62.9
600	6053	6712	7617	9099	11075	12886	14015	14344	17308
	0.080	0.089	0.101	0.120	0.146	0.170	0.186	0.190	0.229
	22.0	24.4	27.7	33.1	40.3	46.9	51.0	52.2	63.0
630	6088	6746	7652	9133	11109	12920	14073	14402	17365
	0.080	0.089	0.101	0.121	0.147	0.171	0.186	0.19	0.230
	22.1	24.5	27.8	33.2	40.4	47.0	51.2	52.4	63.1
Condition： Element temperature 1500℃ Furnace temperature 1300℃ Current 275A Surface load 14.5W/C㎡
							Power (W)
							Resistance (Ω)
							Voltage (V)