U.S.A Electrofusion α and β products

Electrofusion α and β products

Category:

Product Description

Item			Indicator
			RA-M	RA-H
Chemical content	AL2O3/%		93 〜96	92 〜94
	K2O+Na2O/%		3.2~5.0	5. 5~7.5
	SiO2+ Fe2O3 + TiO2+CaO + other/ %		<2.0	<1.5
Physical property	Bulk density of dense part /(g/cm1)		>3. 30	>2.80
	Cold compressive strength/MPa		>200	>30
	(1300°CX10h) % Bubble rate (ordinary soda-lime glass, (1300°CX10h) %		<0.3	—
	Resistance to glass melt rate under static state at the three-phase interface/(mm/24h) (ordinary soda-lime glass, 1350C, 48h)		<0.4	—
	Phase composition		Provide measured data
	Volume weight/(kg/m3)	PT	>3 050	>2 500
		wS	>3 250	>2 700
a For products with unit weight over 100kg.

Item			Indicator
			Rough finish	Fine finish
Dimensional deviation			+1~—4	0〜-2
Appearance quality	Squareness a		0~2	0~1
	Masonry surface distortion		—	+1 1
	Unfilled corner	Working face	2 locations allowed when a+b+c<I50 mm
		Non-working face	2 locations allowed when a+ d+c<190 mm
	Edge damage	Working face	2 locations allowed when e+f＜30mm if g is not greater than 1/4 of the edge length
		Non-working face	2 locations allowed when e+f＜50mm if g is not greater than 1/3 of the edge length
	Crack	Width ＜1	Cracks longer than 1/2 of the face width not allowed
		Width between 1 and 2	Cracks longer than 30mm not allowed
		Width＞ 2	Not allowed
		Crossing-edge cracks	Cracks across one edge and exceeding 1/2 of the face width along the thickness direction and 1/3 of the face width on other faces not allowed; cracks across two edges to the third face not allowed.
		Through cracks	Cracks through to the opposite face not allowed.
	Blistering		Not allowed on the working face and masonry and on other faces if the depth and the area exceed 20mm and 10% of the face area respectively.
	Surface attachments or other fused materials		Not allowed
Note: the dense layer thickness shall be determined by the supplier and the buyer through negotiation.
A Products with side length ＜ 500mm shall be determined by the supplier and the buyer through negotiation.

Test Report of Inner Mongolia Yujing Technology Co., Ltd.,

α-β Inspection report

Beijing Testing

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$Zhengzhou Shengtian Fused Cast Refractory Co., Ltd.$

Address: No. 330, Weilai Avenue, Xinmi City, Henan Province