| 指标 | 保证值 | 典型值 | |
| Property | Guarantee Value | Typical Value | |
| 化学指标 Chemical Property | SiO2 | ≥98.5% | 98.5%-99.5% |
| Al2O3 | ≤0.6% | 0.2%-0.5% | |
| Fe2O2 | ≤0.3% | 0.1%-0.3% | |
| CaO | ≤0.1% | 0.01%-0.1% | |
| Na2O+K2O | ≤0.2% | 0.01%-0.2% | |
| 物理指标 Physical Property | 体积密度 | ≥1.75 | 1.75-1.9 |
| Bulk density g/cm3 | |||
| 常温耐压强度MPa | ≥20 | 25-50 | |
| Cold crushing strength | |||
| 1000oC热膨胀率 | ≤0.3% | 0-0.3% | |
| Thermal expension at 1000 | |||
| 热稳定性 次 | ≥30 | 30-50 | |
| Thermal shock resistance times | |||
| 显气孔率 | ≤18.5% | 14%-18.5% | |
| Apparent porosity | |||
| 抗折系数MPa | ≥3.5 | 3.5-6.0 | |
| Bending coefficient | |||
Shandong Luqiao New Materials Co., Ltd. has fixed assets of 320 million yuan, a land area of 800 mu, and 1,200 employees including 268 engineering and technical personnel. It is mainly engaged in production of clay bricks, high alumina bricks, silica, and fused silica bricks, with an annual output of 200,000 tons. The products are mainly used in the coking and iron and steel industries, which are also exported to Japan, Korea, India, Britain, Italy, and other countries and regions. In 2011, the company achieved sales income of 340 million yuan, paid 31 million yuan of taxes, and obtained 12 million yuan of profits. It is a director unit of the Refractory Industry Association, the designated manufacturer of refractory materials for the Anshan Coking and Refractory Engineering Research Institute of China Metallurgical Group Corporation, one of the top 100 steel refractory manufacturers, and one of the first AAA-grade credit enterprises recognized by the Refractory Industry Association of China. It has passed the certifications of ISO9001, ISO14001, and GB/T18001. The company has strong technical force, advanced technology and equipment, and complete testing means. It is one of the largest manufacturers of coke and steel refractory materials in China, and a backbone enterprise of high-quality refractory material production base of Shandong Province.
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