Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Crucible for smelting alloy containing active elements and preparation method of crucible
The invention belongs to the field of manufacturing of metal smelting crucibles, and discloses a crucible for smelting an alloy containing active elements, the crucible comprises an alumina matrix layer and an yttrium oxide inner surface coating, the alumina matrix layer comprises silica powder and alumina powder with the purity of 98%-99%; the yttrium oxide inner surface coating is divided into an upper layer and a bottom layer and is obtained through two times of spraying operation. The preparation method of the crucible is simple and reliable, the crucible can stably work at the temperature of 1800 DEG C, the highly-compact yttrium oxide inner surface coating effectively prevents elements of the matrix layer from permeating into smelted metal liquid, the purity of smelted metal can be guaranteed, the spraying process of the yttrium oxide inner surface coating increases the bonding strength of the coating and the matrix layer to a great extent, the service life of the crucible is prolonged, and the crucible has a wide prospect in the field of smelting of high-melting-point and high-activity alloys. The invention further discloses a preparation method of the crucible for smelting the alloy containing the active elements. The preparation method has the beneficial effects mentioned above.
本发明属于金属熔炼坩埚制作领域，公开了一种用于含活泼元素合金熔炼用坩埚，包括氧化铝基体层和氧化钇内表面涂层，氧化铝基体层包括二氧化硅粉体和纯度为98％～99％的氧化铝粉体；氧化钇内表面涂层分为上层和底层，由两次喷涂作业得到。本发明的坩埚其制备方法简单可靠，能在1800℃稳定工作，高度致密的氧化钇内表面涂层有效防止基体层元素渗透到熔炼的金属液中，能够保障熔炼金属的纯度，氧化钇内表面涂层的喷涂工艺在很大程度上增大了涂层与基体层的结合强度，提高了坩埚的使用寿命，在高熔点高活性合金的熔炼领域具有广阔的前景。本发明还公开了一种用于含活泼元素合金熔炼用坩埚的制备方法，其有益效果如上述所述。
Crucible for smelting alloy containing active elements and preparation method of crucible
The invention belongs to the field of manufacturing of metal smelting crucibles, and discloses a crucible for smelting an alloy containing active elements, the crucible comprises an alumina matrix layer and an yttrium oxide inner surface coating, the alumina matrix layer comprises silica powder and alumina powder with the purity of 98%-99%; the yttrium oxide inner surface coating is divided into an upper layer and a bottom layer and is obtained through two times of spraying operation. The preparation method of the crucible is simple and reliable, the crucible can stably work at the temperature of 1800 DEG C, the highly-compact yttrium oxide inner surface coating effectively prevents elements of the matrix layer from permeating into smelted metal liquid, the purity of smelted metal can be guaranteed, the spraying process of the yttrium oxide inner surface coating increases the bonding strength of the coating and the matrix layer to a great extent, the service life of the crucible is prolonged, and the crucible has a wide prospect in the field of smelting of high-melting-point and high-activity alloys. The invention further discloses a preparation method of the crucible for smelting the alloy containing the active elements. The preparation method has the beneficial effects mentioned above.
本发明属于金属熔炼坩埚制作领域，公开了一种用于含活泼元素合金熔炼用坩埚，包括氧化铝基体层和氧化钇内表面涂层，氧化铝基体层包括二氧化硅粉体和纯度为98％～99％的氧化铝粉体；氧化钇内表面涂层分为上层和底层，由两次喷涂作业得到。本发明的坩埚其制备方法简单可靠，能在1800℃稳定工作，高度致密的氧化钇内表面涂层有效防止基体层元素渗透到熔炼的金属液中，能够保障熔炼金属的纯度，氧化钇内表面涂层的喷涂工艺在很大程度上增大了涂层与基体层的结合强度，提高了坩埚的使用寿命，在高熔点高活性合金的熔炼领域具有广阔的前景。本发明还公开了一种用于含活泼元素合金熔炼用坩埚的制备方法，其有益效果如上述所述。
Crucible for smelting alloy containing active elements and preparation method of crucible
一种用于含活泼元素合金熔炼用坩埚及其制备方法
LU ZHILING (Autor:in)
09.11.2021
Patent
Elektronische Ressource
Chinesisch
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