Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
PROTECTIVE COATING MATERIAL OF CARBON CRUCIBLES FOR RECYCLING TUNGSTEN CARBIDE
The present invention relates to a damage preventing composition of a graphite crucible for recycling waste cemented carbide. According to the present invention, the composition has a graphite raw material obtained by mixing crystalline graphite with spherical graphite as a main raw material composition. The composition is obtained by the steps of: preparing a mixture composition by adding, with respect to 100 parts by weight of the main raw material composition, 0.2-0.5 parts by weight of boron carbide (B4C) or calcium boride (CaB6), which are antioxidants; and adding, with respect to 100 parts by weight of the mixture composition, 105-135 parts by weight of a liquid binder obtained by mixing a furan resin with ethyl alcohol. When the crystalline graphite is mixed with the spherical graphite, a mixing ratio thereof is the crystalline graphite : the spherical graphite=1 : 1.2-3, and when the furan resin is mixed with the ethyl alcohol, a mixing ration thereof is the furan resin : the ethyl alcohol=1 : 0.25-0.67.
폐초경합금 재생용 흑연도가니 손상 방지 조성물이 제공된다. 본 발명의 조성물은, 인상흑연과 구형흑연의 혼합으로 조성된 흑연원료를 주원료 조성으로 하고, 상기 주원료 조성 100중량부에 대하여, 산화방지제인 탄화붕소(B4C) 또는 붕소화칼슘(CaB6) 0.2~0.5 중량부를 첨가하여 이루어진 혼합물 조성에, 그리고 상기 혼합물 조성 100 중량부에 대하여, 퓨란수지(Furan Resin)와 에틸알콜(Ethyl Alcohol)의 혼합으로 이루어진 액상 바인더 105~135 중량부를 추가로 첨가하여 이루어지고; 상기 인상흑연과 구형흑연의 혼합 시, 그 혼합비, 인상흑연:구형흑연=1:1.2~3을 만족하고; 그리고 상기 상기 퓨란수지와 에틸알콜의 혼합 시, 그 혼합비, 퓨란수지:에틸알콜=1:0.25~0.67를 만족한다.
PROTECTIVE COATING MATERIAL OF CARBON CRUCIBLES FOR RECYCLING TUNGSTEN CARBIDE
The present invention relates to a damage preventing composition of a graphite crucible for recycling waste cemented carbide. According to the present invention, the composition has a graphite raw material obtained by mixing crystalline graphite with spherical graphite as a main raw material composition. The composition is obtained by the steps of: preparing a mixture composition by adding, with respect to 100 parts by weight of the main raw material composition, 0.2-0.5 parts by weight of boron carbide (B4C) or calcium boride (CaB6), which are antioxidants; and adding, with respect to 100 parts by weight of the mixture composition, 105-135 parts by weight of a liquid binder obtained by mixing a furan resin with ethyl alcohol. When the crystalline graphite is mixed with the spherical graphite, a mixing ratio thereof is the crystalline graphite : the spherical graphite=1 : 1.2-3, and when the furan resin is mixed with the ethyl alcohol, a mixing ration thereof is the furan resin : the ethyl alcohol=1 : 0.25-0.67.
폐초경합금 재생용 흑연도가니 손상 방지 조성물이 제공된다. 본 발명의 조성물은, 인상흑연과 구형흑연의 혼합으로 조성된 흑연원료를 주원료 조성으로 하고, 상기 주원료 조성 100중량부에 대하여, 산화방지제인 탄화붕소(B4C) 또는 붕소화칼슘(CaB6) 0.2~0.5 중량부를 첨가하여 이루어진 혼합물 조성에, 그리고 상기 혼합물 조성 100 중량부에 대하여, 퓨란수지(Furan Resin)와 에틸알콜(Ethyl Alcohol)의 혼합으로 이루어진 액상 바인더 105~135 중량부를 추가로 첨가하여 이루어지고; 상기 인상흑연과 구형흑연의 혼합 시, 그 혼합비, 인상흑연:구형흑연=1:1.2~3을 만족하고; 그리고 상기 상기 퓨란수지와 에틸알콜의 혼합 시, 그 혼합비, 퓨란수지:에틸알콜=1:0.25~0.67를 만족한다.
PROTECTIVE COATING MATERIAL OF CARBON CRUCIBLES FOR RECYCLING TUNGSTEN CARBIDE
폐초경합금 재생용 흑연도가니 손상 방지 조성물
KIM JAE WON (Autor:in)
19.05.2020
Patent
Elektronische Ressource
Koreanisch
IPC:
C04B
Kalk
,
LIME
/
F27D
Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind
,
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
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