【莫来石产品介绍】
上海顶央莫来石是一种优质的耐火材料，它具有膨胀均匀、热枕稳定性极好、荷重软化点高、高温蠕变值小、硬度大、抗化学腐蚀性好等特点，主要有高纯电熔莫来石、普通电熔莫来石、全天然铝矾土精矿烧结莫来石和轻烧莫来石。
【莫来石产品分类】
烧结莫来石
烧结莫来石采用天然优质铝矾土，通过多级均化，经1750℃以上高温烧结而成。具有体积密度大、质量稳定，热震稳定性好、高温蠕变值小和抗化学腐蚀性好等性能特点。是生产各种定型与不定型耐火材料、高级卫生洁具坯体、精密铸造模型等耐材制品的理想原料。
技术指标
牌号 | Al2O3 | SiO2 | Fe2O3 | R2O | 体积密度(g/cm3) | 吸水率(%) |
M70 | 68-79 | 22-28 | ≤0.3-1.2 | ≤0.3 | ≤2.85 | ≤3 |
M60 | 58-62 | 33-28 | ≤1.1 | ≤0.3 | ≥2.75 | ≤3 |
M45 | 42-45 | 53-55 | ≤0.4 | ≤1.6 | ≥2.50 | ≤2 |
轻质莫来石骨料
轻质莫来石既是利用天然铝矾土为原料，采用合理的工艺制得适用于1400-1500℃使用的高温轻质骨料。轻质莫来石特点：1、使用温度高，可直接接触火焰作工作衬使用，实现高温节能。2、导热系数低，保温性能好，特制轻质莫来石骨料配料，体积稳定，强度高，结构气密较好。3、结构重量减轻40--60%，消除炉顶吊挂砖断隐患。4、可快速烘炉，高空隙率排气顺畅，缩短烘炉工期，经济效益显著。
轻质莫来石用途：各种火焰炉工作衬，直接接触火焰(不接触熔体)，其它高温设备保温隔热；配制各种轻质耐火浇注料、喷涂料等；加热炉、均热炉、热处理炉、退火炉、陶瓷、耐火制品烧成炉的炉顶、炉墙；蒸汽锅炉，石油工业管式加热炉、乙烷裂解炉炉衬；各种工业炉炉门、观察孔内衬。
煅烧莫来石
天然煅烧莫来石系列产品，采用优质煤系高岭土为原料，经高温煅烧加工而成。产品具有质地密、硬度高、膨胀系数小、耐磨性能优、热化学稳定性好等特性。主要应用于冶金、建材、化工、耐火材料、军工等行业中。
电熔莫来石
选用优质纯天然莫来石原矿，经先进的工业电炉高温熔烧而成。具有膨胀均匀、热震稳定性极好、荷重软化点高、高温蠕变值小、硬度大、抗化学腐蚀性好等特点。莫来石是冶金、陶瓷、建材、化工、电力及铸造等行业的理想材料。
【莫来石使用范围】
用莫来石生产的高温莫来石质绝热砖具有耐高温、强度高导热系数小，节能效果显著等特点，适用于石油裂介炉、冶金热风炉、陶瓷辊道窑、隧道窑、电瓷抽屉窑、玻璃坩埚窑及各种电炉的内衬，可直接接触火焰。
Sintered Mullite with natural high-quality bauxite, through multi-stage homogenization, by more than 1750 DEG C high sintering temperature. Has the advantages of large size, mass, stability, good thermal stability, high temperature creep resistance and good chemical resistance. Is the ideal raw material for the production of various shaped and unshaped refractory materials, advanced sanitary ware body and precision casting model of refractory products.
Mullite is using natural bauxite as raw material, adopt the reasonable process for high temperature lightweight aggregate used in 1400-1500 C. Mullite features: 1, the use of high temperature, can directly contact the working lining using flame, high temperature energy saving. 2, low thermal conductivity, good insulation properties, special lightweight mullite aggregate batching, volume stability, high strength, good airtight structure. 3, weight 40--60%, eliminate hidden broken roof hanging brick. 4, quick drying, high porosity smooth exhaust, shorten oven period, significant economic benefits.
Mullite applications: all kinds of flame furnace lining, direct contact with the flame (not contact melt), insulation and other high-temperature equipment; preparation of various lightweight refractory castable, spray paint; heating furnace, soaking furnace, heat treatment furnace, annealing furnace, ceramic and refractory products sintering furnace and furnace wall; steam boiler petroleum, industrial furnace, ethane cracking furnace lining; various industrial furnace door, observation hole lining.
The natural calcined mullite products using high-quality kaolin as raw materials, processed by high temperature calcination. Products with high quality, high hardness, low expansion coefficient, excellent wear resistance, good thermal stability and so on. Mainly used in metallurgy, building materials, chemical, refractories, military and other industries.
Natural selection of high-quality mullite ore, the advanced industrial furnace and high temperature melting. With the expansion of uniform, excellent thermal shock resistance, high load softening point, high temperature creep value small, high hardness, good resistance to chemical corrosion. Mullite is an ideal material for metallurgy, ceramics, building materials, chemical industry, electric power and casting industry.
With the production of high temperature mullite mullite brick with high temperature, high strength thermal conductivity is small, energy-saving effect is remarkable characteristics, suitable for petroleum cracking furnace, hot blast furnace, metallurgical dielectric ceramic roller kiln, tunnel kiln, shuttle kiln, glass kiln porcelain crucible and furnace lining, can direct contact with the flame.