1.1 purpose

The equipment is used for mensurating pyrometric cone equivalent of refractoriness. The measuring range is from 1580℃ to 1800℃.

1.2 execution standard

The equipment is made by “GB/T 7322-97—Test method for pyrometric cone equivalent (refractoriness) of refractories” and “ISO 528-83 Test method for pyrometric cone equivalent (refractoriness) of refractories”. It has quite beautiful figure and steady capability. The furnace body and up-down pole is made of stainless steel, that is durable. It’s full-automatically controlled by PC. It has friendly interface, high precision, operates very handily, may artificially be set rising temperature-time curve, and can automatically register testing data. It can display sample image, refractoriness temperature, and Excel data. It has entire protection function, such as break thermocouple, pass electricity, pass voltage, break heating element, and break water. Still it has many excellency, which is durable, energy conservation, safe, convenient, beautiful. The furnace can be joined with computer, using software by ourselves invented. The image edited software includes many functions, such as image save, image print, interface analyse, and data search.

1.3 main specifications

Parameter Specification	NHD-03P
working temperature	1800℃
max. temperature	1850℃
heating-up rate	room temperature to 1300℃,10℃/min 1300℃～1800℃,2.5℃/min
time for reaching to 1700℃	<290min
megascopic rate	infinite
testing precision	±10℃
temperature accuracy in soaking	±5℃
image resolution	768×576
transformer power	6kVA
power supply	three phase 380V 0.5kW & signal phase 380V 40kW
water supply	Φ10mm penstock, >0.1MPa
dimension of furnace body	800×570×1450mm
dimension of control cabinet	1400×650×800mm
weight	400kg