Whakarewa Kore Kore

Refractory Bricks of Aluminum Electrolysis Cell :

Bricks for Aluminum Electrolysis Cell(side wall bricks, corner bricks and composite bricks)
Not only made of high-quality silicon carbide and industrial silicon powder as raw materials, but also made by vibrating pressure forming and stepped high pressure oxidation process, this product is characterized with good cryolite corrosion resistance, strong oxidation resistance, high temperature strength, strong thermal conductivity and long service life , so it is an ideal material for the side wall of a 180KVA large-scale pre-baked electrolytic cell. Compared with carbon blocks, this product improves current efficiency, reduces DC power consumption, and has a significant effect of energy saving and consumption reduction.

Silicon Nitride Bonded Silicon Carbide Port Bricks :

This brick has the characteristics of high temperature resistance, corrosion and erosion resistance of molten aluminum (aluminum alloy), no pollution of molten aluminum (aluminum alloy), and good thermal shock resistance. It is mainly used in the casting process of aluminum (aluminum alloy) melting and refining.

Refractories for Copper, Zinc, Lead and Nickel industries

Direct-bonded magnesia chrome bricks are made of high-purity or sub-high-purity sintered or fused magnesia and chromium concentrate as raw materials. The product has few impurities. After being fired at high or ultra-high temperature, the glass phase is concentrated in the triangular area of the crystal phase, and the crystal phase and the crystal phase are directly combined. It has the characteristics of low porosity, high crushing strength, strong wear resistance, corrosion resistance, thermal shock resistance and good peeling resistance.

Brand Item	Direct-bonded Magnesia-Chrome Brick
	RSM Ge-8A	RSM Ge-8B	RSM Ge-12A	RSM Ge-12B	RSM Ge-16A	RSM Ge-16B	RSM Ge-18A	RSM Ge-18B	RSM Ge-20	RSM Ge-22	RSM Ge-26
MgO , %  ≥	82	76	75	70	70	65	65	62	65	60	55
Cr2O3 , %  ≥	8	8	12	12	16	16	18	18	20	22	26
SiO2  ,%   ≤	1.5	2.5	1.5	2.5	1.5	2.5	1.5	2.5	2.0	2.0	2.0
Apparent Porosity,%       ≤	17	18	17	18	17	18	17	18	19	19	20
CCS , MPa ≥	45	45	45	45	45	40	45	40	40	40	40
0.2MPa Refractoriness Under Load ,℃ ≥	1700	1650	1700	1650	1700	1650	1700	1650	1700	1700	1700
(1400℃) Thermal Expansion Rate, %	1.5	—	–	—	1.6	—	—	–	—	—	1.8

Brand Item	Pereki Chrome Magnesia
	RSMGe-8	RSMGe-12	RSMGe-16	RSMGe-20
MgO , %  ≥	60	55	45	40
Cr2O3 , %  ≥	8	12	16	20
Apparent Porosity ,%  ≤	21	21	22	22
CCS , MPa ≥	30	30	25	25
0.2MPa Refractoriness Under Load, ℃ ≥	1530	1550	1550	1550

Semi-rebonded Magnesia Chrome Brick

Semi-rebonded magnesia chrome bricks are made of fused magnesia chromium particles, high-purity fused or sintered magnesia and chromium concentrate as raw materials, fired at ultra-high temperature. Not only thermal shock resistance is good as direct-bonded magnesia chrome bricks, but also corrosion resistance is good as fused rebonded magnesia chrome bricks.

Brand Item	Semi-rebonded Magnesia Chrome Brick
	RS RMGe -12A	RS RMGe -12B	RS RMGe -14A	RS RMGe -14B	RS RMGe -16A	RS RMGe -16B	RS RMGe -18A	RS RMGe -18B	RS RMGe -20A	RS RMGe -20B	RS RM Ge-22	RS RM Ge-26	RS RM Ge-30
MgO , %  ≥	78	75	75	72	72	70	70	68	68	65	65	60	55
Cr2O3 , %  ≥	12	12	14	14	16	16	18	18	20	20	22	26	30
SiO2 , %   ≤	1.5	2.0	1.5	2.0	1.5	2.0	1.5	2.0	1.5	2.0	2.0	2.0	2.0
Apparent Porosity, % ≤	15	16	15	16	15	16	15	16	15	16	16	16	16
CCS, MPa ≥	45	40	45	40	45	40	45	40	45	40	45	45	45
0.2MPa Refractoriness Under Load , ℃ ≥	1700	1650	1700	1650	1700	1650	1700	1650	1700	1650	1700	1700	1700
(1400℃) Thermal Expansion Rate, %	1.4	—	—	—	1.5	—	—	—	1.6	—	—	1.7	—

Fused Rebonded Magnesia Chrome Brick、Magnesium-aluminum-chromium Composite Spinel Brick

Fused rebonded magnesia chrome bricks are re-sintered products made of fused magnesia chrome particles.

Magnesium-aluminum-chromium composite spinel brick is a new type of high-grade composite material, which developed by Rongsheng according to the characteristics of zinc volatilization kiln. It not only has excellent scouring and erosion resistance, but also has good peeling resistance. After being used by Zhuzhou Smelting Co., Ltd., Yunnan Copper Zinc Co., Ltd. and other large zinc smelting enterprises, this kind of brick has obvious advantages over chrome slag bricks, direct-bonded magnesia chrome bricks, magnesia bricks and thermal shock resistant high alumina bricks. It is the ideal material for zinc volatilization kilns.

Brand Item	Fused Rebonded Magnesia Chrome Brick								Magnesium-aluminum-chromium Composite Spinel Brick
	RSRM Ge-12	RSRM Ge-14	RSRM Ge-16	RSRM Ge-18	RSRM Ge-20	RSRM Ge-22	RSRM Ge-26	RSRM Ge-30	RSMAC -A	RSMAC -B
MgO , % ≥	78	75	72	70	68	65	60	55	80	75
Cr2O3 ,%  ≥	12	14	16	18	20	22	26	30	3-5	3-5
SiO2 , %  ≤	1.5	1.5	1.5	1.5	1.5	2.0	2.0	2.0	Al2O3 6
Apparent Porosity , % ≤	15	15	15	15	15	15	15	15	17	18
CCS, MPa ≥	45	45	45	45	45	45	45	45	50	50
0.2MPa Refractoriness Under Load , ℃ ≥	1700	1700	1700	1700	1700	1700	1700	1700	1700	1650
Thermal Shock Resistance ≥	—	—	—	—	—	—	—	—	100	80
Thermal Expansion Rate, %	—	—	1.5	—	—	—	—	1.7	—	—

High Alumina Bricks 、Phosphate Bonding High Alumina Bricks and Fire Clay Bricks

Brand Item	High Alumina Bricks				Phosphate Bonding High Alumina Bricks		Fire Clay Bricks
	RSLZ-75	RSLZ-65	RSLZ-55	RSLZ-48	PA	RSGH-80	RSN -1	RSN -2a	RSN -2b	RSN -3a	RSN -3b
Ko Al2O3 , %    ≥	75	65	55	48	77	80	—	—	—	—	—
Fe2O3 , % ≤					3.2	2.0	—	—	—	—	—
Apparent Porosity , %   ≤	23	23	22	22	—	—	22	24	26	24	26
Bulk Density ,g/cm3 ≥	—	—	—	—	2.7	2.9	—	—	—	—	—
CCS, MPa ≥	—	—	—	—	65	60	60	25	20	20	15
Refractoriness Under Load ≥	1500	1450	1420	1400	1250	1460	1400	1350	—	1320	—
1400℃×2h Reheating Linear Change Rate, %	1500℃×2h +0.1～-0.4	1500℃×2h +0.1～-0.4	1450℃×2h +0.1～-0.4	—	—	—	+0.1 ～-0.4	+0.1 ～-0.5	+0.2 ～-0.5	1350℃×2h +0.2～-0.5	—
Rereira,℃ ≥	1790	1790	1770	1770	1780	1790	1760	1740	1740	1720	1720

Tikina he korero