Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of graphite crucible
The invention discloses a preparation method of a graphite crucible. The preparation method comprises the following steps: S1, raw material preparation: raw materials comprise graphite scraps, an Acheson furnace petroleum coke resistance material, an Acheson furnace petroleum coke thermal insulation material and medium-temperature coal pitch; s2, burdening: graphite is crushed and ground into graphite powder, then the graphite powder is mixed with the Acheson furnace petroleum coke resistance material, the Acheson furnace petroleum coke resistance material and the Acheson furnace petroleum coke heat preservation material according to the mass ratio of 3: 2: 5, the mixture is ground into mixed powder, the mixed powder is mixed with medium-temperature coal pitch, the mass percent of the mixed powder in the mixing process is 65%-85%, and the medium-temperature coal pitch is obtained; the mass percent of the medium-temperature coal pitch is 15%-35%; s3, mixing and kneading; s4, profiling is conducted; s5, roasting; and S6, processing. A hot-pressing cold-out one-time forming method is adopted, the obtained product is excellent in performance and shows good thermal shock resistance, ablation performance, leakage-proof performance and mechanical strength, and the preparation process has the advantages in the aspects of saving energy, protecting the environment, shortening the period and improving the aging efficiency.
本发明公开了一种石墨坩埚的制备方法，包括下列步骤：S1、原料准备：原料包括石墨碎、艾奇逊炉石油焦电阻料、艾奇逊炉石油焦保温料和中温煤沥青；S2、配料：将石墨碎磨成石墨粉，然后与艾奇逊炉石油焦电阻料、艾奇逊炉石油焦电阻料、艾奇逊炉石油焦保温料按3:2:5的质量比例混合、研磨成混合粉，混合粉再与中温煤沥青混合，混合过程中混合粉的质量百分比为65％‑85％，中温煤沥青质量百分比为15％‑35％；S3、混捏；S4、压型；S5、焙烧；S6、加工。本发明采用热压冷出一次性成型方法，所得产品性能优良，表现为良好的抗热震性能、烧蚀性能、防漏性能及机械强度，制备工艺在节能环保、缩短周期提高时效方面均具有优势。
Preparation method of graphite crucible
The invention discloses a preparation method of a graphite crucible. The preparation method comprises the following steps: S1, raw material preparation: raw materials comprise graphite scraps, an Acheson furnace petroleum coke resistance material, an Acheson furnace petroleum coke thermal insulation material and medium-temperature coal pitch; s2, burdening: graphite is crushed and ground into graphite powder, then the graphite powder is mixed with the Acheson furnace petroleum coke resistance material, the Acheson furnace petroleum coke resistance material and the Acheson furnace petroleum coke heat preservation material according to the mass ratio of 3: 2: 5, the mixture is ground into mixed powder, the mixed powder is mixed with medium-temperature coal pitch, the mass percent of the mixed powder in the mixing process is 65%-85%, and the medium-temperature coal pitch is obtained; the mass percent of the medium-temperature coal pitch is 15%-35%; s3, mixing and kneading; s4, profiling is conducted; s5, roasting; and S6, processing. A hot-pressing cold-out one-time forming method is adopted, the obtained product is excellent in performance and shows good thermal shock resistance, ablation performance, leakage-proof performance and mechanical strength, and the preparation process has the advantages in the aspects of saving energy, protecting the environment, shortening the period and improving the aging efficiency.
本发明公开了一种石墨坩埚的制备方法，包括下列步骤：S1、原料准备：原料包括石墨碎、艾奇逊炉石油焦电阻料、艾奇逊炉石油焦保温料和中温煤沥青；S2、配料：将石墨碎磨成石墨粉，然后与艾奇逊炉石油焦电阻料、艾奇逊炉石油焦电阻料、艾奇逊炉石油焦保温料按3:2:5的质量比例混合、研磨成混合粉，混合粉再与中温煤沥青混合，混合过程中混合粉的质量百分比为65％‑85％，中温煤沥青质量百分比为15％‑35％；S3、混捏；S4、压型；S5、焙烧；S6、加工。本发明采用热压冷出一次性成型方法，所得产品性能优良，表现为良好的抗热震性能、烧蚀性能、防漏性能及机械强度，制备工艺在节能环保、缩短周期提高时效方面均具有优势。
Preparation method of graphite crucible
一种石墨坩埚的制备方法
LI WEI (Autor:in) / QIU TINGJU (Autor:in)
22.03.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Graphite crucible repairing material and graphite crucible repairing method
| Europäisches Patentamt | 2024