Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for manufacturing high-capacity MgO crucible by adopting cold isostatic pressing technology
The invention discloses a method for manufacturing a high-capacity (more than 500kg) outside-furnace integrally-formed magnesium crucible by adopting a cold isostatic pressing technology, and belongs to the technical field of preparation of high-temperature refractory materials. The raw material used in the invention is an electric smelting MgO sand refractory material, and the MgO content is greater than or equal to 96 wt.%. The preparation method comprises the following steps: preparing magnesia sand according to certain granularity and weight composition requirements, adding a certain amount of water as a binder, and uniformly mixing; cold isostatic pressing is adopted for forming a crucible biscuit, the cold isostatic pressing pressure ranges from 210 MPa to 280 MPa, the pressure is maintained for 2-4 minutes, then the crucible biscuit is put into a high-temperature kiln, and the temperature is slowly increased to 1650 DEG C +/-30 DEG C for sintering. The invention discloses a method for preparing a high-capacity magnesium crucible integrally formed outside a furnace. Vacuum induction melting test and performance detection show that the magnesium crucible formed by the method has the characteristics of high density, high high-temperature strength, good thermal shock resistance and long service life, and can meet the production requirement of smelting 1000kg of pure nickel-based high-temperature alloy or stainless steel alloy material in each furnace.
本发明公开了一种采用冷等静压技术制造大容量(500kg以上容量)炉外一体成型镁质坩埚的方法，属于高温耐火材料制备技术领域。本发明所用原料为电熔MgO砂耐火材料，其MgO含量≥96wt.％。将氧化镁砂按照一定的粒度和重量组成要求配好后，加入一定量的水作为粘结剂，并混合均匀；采用冷等静压成型坩埚素坯，冷等静压成型压力为210MPa‑280MPa，保压2～4分钟，坩埚素坯再放入高温窑内，缓慢升温到1650℃±30℃进行烧结。本发明公开了一种制备大容量炉外一体成型镁质坩埚的方法。真空感应熔炼测试和性能检测都表明：该方法成型的镁质坩埚具有高致密度，高温强度高、抗热震性能好，使用寿命长的特点，可满足每炉熔炼1000kg纯净的镍基高温合金或不锈钢合金材料的生产要求。
Method for manufacturing high-capacity MgO crucible by adopting cold isostatic pressing technology
The invention discloses a method for manufacturing a high-capacity (more than 500kg) outside-furnace integrally-formed magnesium crucible by adopting a cold isostatic pressing technology, and belongs to the technical field of preparation of high-temperature refractory materials. The raw material used in the invention is an electric smelting MgO sand refractory material, and the MgO content is greater than or equal to 96 wt.%. The preparation method comprises the following steps: preparing magnesia sand according to certain granularity and weight composition requirements, adding a certain amount of water as a binder, and uniformly mixing; cold isostatic pressing is adopted for forming a crucible biscuit, the cold isostatic pressing pressure ranges from 210 MPa to 280 MPa, the pressure is maintained for 2-4 minutes, then the crucible biscuit is put into a high-temperature kiln, and the temperature is slowly increased to 1650 DEG C +/-30 DEG C for sintering. The invention discloses a method for preparing a high-capacity magnesium crucible integrally formed outside a furnace. Vacuum induction melting test and performance detection show that the magnesium crucible formed by the method has the characteristics of high density, high high-temperature strength, good thermal shock resistance and long service life, and can meet the production requirement of smelting 1000kg of pure nickel-based high-temperature alloy or stainless steel alloy material in each furnace.
本发明公开了一种采用冷等静压技术制造大容量(500kg以上容量)炉外一体成型镁质坩埚的方法，属于高温耐火材料制备技术领域。本发明所用原料为电熔MgO砂耐火材料，其MgO含量≥96wt.％。将氧化镁砂按照一定的粒度和重量组成要求配好后，加入一定量的水作为粘结剂，并混合均匀；采用冷等静压成型坩埚素坯，冷等静压成型压力为210MPa‑280MPa，保压2～4分钟，坩埚素坯再放入高温窑内，缓慢升温到1650℃±30℃进行烧结。本发明公开了一种制备大容量炉外一体成型镁质坩埚的方法。真空感应熔炼测试和性能检测都表明：该方法成型的镁质坩埚具有高致密度，高温强度高、抗热震性能好，使用寿命长的特点，可满足每炉熔炼1000kg纯净的镍基高温合金或不锈钢合金材料的生产要求。
Method for manufacturing high-capacity MgO crucible by adopting cold isostatic pressing technology
一种采用冷等静压技术制造大容量MgO坩埚的方法
MA YINGCHE (Autor:in) / SONG QINGZHONG (Autor:in) / ZHA XIANGDONG (Autor:in) / GAO MING (Autor:in) / ZHANG LONG (Autor:in) / HAO XIANCHAO (Autor:in) / WANG MIN (Autor:in)
05.07.2024
Patent
Elektronische Ressource
Chinesisch
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2022
Rubber isostatic pressing and cold isostatic pressing of metal powder
| British Library Online Contents | 2004
Manufacturing process and application of cold isostatic pressing graphite
| Europäisches Patentamt | 2022
HOT ISOSTATIC PRESSING DEVICE AND ISOSTATIC PRESSING PROCESSING METHOD
| Europäisches Patentamt | 2021