Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for sintering crucible through graphite electrode
The invention discloses a method for sintering a crucible by using a graphite electrode, which comprises the following steps of: 1, determining the size of the graphite electrode and designing the structure of the graphite electrode: requiring that the ratio of the diameter (D) of the graphite electrode to the diameter (d) of the crucible is more than or equal to 0.8 and less than or equal to 0.9; 2, positioning a graphite electrode: before positioning, firstly cleaning the outer surface of the graphite electrode, then slowly putting the graphite electrode in the middle of a crucible, and ensuring that the side surface of the graphite electrode and a furnace wall have equal intervals; and step 3, atmosphere degassing period: heating to 200-350 DEG C at a constant temperature, heating the graphite electrode, and transferring heat to the crucible furnace lining to achieve the purpose of sintering the crucible furnace lining at a low temperature. The method has the beneficial effects that the crucible is sintered through the graphite electrode, the size effect of the diameter (D) of the graphite electrode and the diameter (d) of the crucible is controlled, and a reasonable heat preservation step is adopted; and finally, a uniform magnesium aluminate spinel phase is formed at high temperature, the sintering compactness is improved, cracks are reduced, and the service life of the crucible is prolonged.
本发明公开了一种石墨电极烧结坩埚的方法，包括以下步骤，步骤一、石墨电极尺寸确定与结构设计：要求石墨电极直径(D)与坩埚直径(d)比为0.8≤D/d≤0.9；步骤二、定位石墨电极：定位前，首先将石墨电极外表面清除干净，然后将石墨电极缓慢放在坩埚中部，保证石墨电极的侧面与炉墙之间具有相等间隔；步骤三、大气除气期：通过恒温加热至200‑350℃，使石墨电极受热，进而向坩埚炉衬传递热量，达到低温烧结坩埚炉衬的目的，本发明的有益效果是：通过石墨电极进行坩埚烧结，控制石墨电极直径(D)与坩埚直径(d)的尺寸效应，采用合理的保温台阶，最终在高温下形成均匀的镁铝尖晶石相，改善烧结致密性，减少裂纹产生、延长坩埚使用寿命。
Method for sintering crucible through graphite electrode
The invention discloses a method for sintering a crucible by using a graphite electrode, which comprises the following steps of: 1, determining the size of the graphite electrode and designing the structure of the graphite electrode: requiring that the ratio of the diameter (D) of the graphite electrode to the diameter (d) of the crucible is more than or equal to 0.8 and less than or equal to 0.9; 2, positioning a graphite electrode: before positioning, firstly cleaning the outer surface of the graphite electrode, then slowly putting the graphite electrode in the middle of a crucible, and ensuring that the side surface of the graphite electrode and a furnace wall have equal intervals; and step 3, atmosphere degassing period: heating to 200-350 DEG C at a constant temperature, heating the graphite electrode, and transferring heat to the crucible furnace lining to achieve the purpose of sintering the crucible furnace lining at a low temperature. The method has the beneficial effects that the crucible is sintered through the graphite electrode, the size effect of the diameter (D) of the graphite electrode and the diameter (d) of the crucible is controlled, and a reasonable heat preservation step is adopted; and finally, a uniform magnesium aluminate spinel phase is formed at high temperature, the sintering compactness is improved, cracks are reduced, and the service life of the crucible is prolonged.
本发明公开了一种石墨电极烧结坩埚的方法，包括以下步骤，步骤一、石墨电极尺寸确定与结构设计：要求石墨电极直径(D)与坩埚直径(d)比为0.8≤D/d≤0.9；步骤二、定位石墨电极：定位前，首先将石墨电极外表面清除干净，然后将石墨电极缓慢放在坩埚中部，保证石墨电极的侧面与炉墙之间具有相等间隔；步骤三、大气除气期：通过恒温加热至200‑350℃，使石墨电极受热，进而向坩埚炉衬传递热量，达到低温烧结坩埚炉衬的目的，本发明的有益效果是：通过石墨电极进行坩埚烧结，控制石墨电极直径(D)与坩埚直径(d)的尺寸效应，采用合理的保温台阶，最终在高温下形成均匀的镁铝尖晶石相，改善烧结致密性，减少裂纹产生、延长坩埚使用寿命。
Method for sintering crucible through graphite electrode
一种石墨电极烧结坩埚的方法
HE YONGSHENG (Autor:in) / HAO XIAN (Autor:in) / LI ZHIXING (Autor:in) / WANG NING (Autor:in) / LI WANLI (Autor:in) / ZHANG LIXIANG (Autor:in) / HU JUNJIE (Autor:in) / CAO GUOXIN (Autor:in) / FU BAOQUAN (Autor:in)
03.12.2024
Patent
Elektronische Ressource
Chinesisch
Graphite crucible repairing material and graphite crucible repairing method
| Europäisches Patentamt | 2024
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