ZHENGZHOU CAIHUA KILN MASONRY INSTALLATION CO.,LTD
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Using high quality magnesia as the main materials, by adding compound binding additives, this series of gunning mixes for EAF feature high adhesive strength, low rebound rate, good sintering, good erosion resistance, and can be used as cold or hot repair materials at slag line and side wall.
| Brand | CHDPB-87 | CHDPB-75 | CHDPB-65 |
| MgO/ % | 87 | 75 | 65 |
| CaO/ % | ----- | 10 | 30 |
| Bulk density/gcm3 | 2.60 | 2.40 | 2.30 |
| Cold crushing strength/ MPa | 15 (110°C , 24h) | 15 (110°C , 24h) | 15 (110°C , 24h) |
| 25 (1500°C , 3h) | 20 (1500°C , 3h) | 20 (1500°C , 3h) | |
| Permanent linear change／％ | 0~-1.5(1500°C, 3h) | 0~-2.5(1500°C, 3h) | 0~-3.0(1500°C, 3h) |
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