Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Carbon-carbon crucible and preparation method thereof
The invention relates to the technical field of carbon-carbon crucibles, in particular to a carbon-carbon crucible and a preparation method thereof.The method comprises the steps that a recycled carbon fiber preform is treated, a prefabricated carbon fiber net tire is obtained, and a prefabricated net tire felt layer is obtained; winding the first wire winding layer at a first angle and winding the second wire winding layer on the first wire winding layer at a second angle to obtain a target prefabricated shell; sequentially needling the carbon fiber net tire layer and the prefabricated carbon fiber net tire to a target preset shell to obtain a prefabricated body with a preset second thickness; carrying out pre-curing, carbonization and densification treatment on the prefabricated body to obtain a densified crucible; carrying out surface treatment, dipping and carbonization treatment on the densified crucible until the density reaches a second preset density to obtain a carbon-carbon crucible; according to the application, the prefabricated mesh felt layers are respectively needled to the two sides of the composite layer, so that when pores in the surface of the densified carbon-carbon crucible are blocked, the prefabricated mesh felt layers can be thinned, the waste of carbon fiber raw materials is avoided, and the production cost is further reduced.
本申请涉及碳碳坩埚技术领域，特别涉及一种碳碳坩埚及其制备方法，方法包括：将回收的碳纤维预制体处理，得到预制碳纤维网胎，并得到预制网胎毡层；将第一缠丝层以第一角度缠绕并将第二缠丝层以第二角度缠绕在第一缠丝层上，得到目标预制壳体；将碳纤维网胎层和预制碳纤维网胎依次针刺至目标预设壳体上，得到预设第二厚度的预制体；对预制体进行预固化、碳化和增密处理得到增密坩埚；对增密坩埚进行表面处理、浸渍和碳化处理，至密度达到第二预设密度，得到碳碳坩埚；本申请将预制网胎毡层分别针刺至复合层的两侧，这能够在使用增密后碳碳坩埚表面孔隙被堵塞时，对预制网胎毡层进行减薄，避免浪费碳纤维原材料，进而降低生产成本。
Carbon-carbon crucible and preparation method thereof
The invention relates to the technical field of carbon-carbon crucibles, in particular to a carbon-carbon crucible and a preparation method thereof.The method comprises the steps that a recycled carbon fiber preform is treated, a prefabricated carbon fiber net tire is obtained, and a prefabricated net tire felt layer is obtained; winding the first wire winding layer at a first angle and winding the second wire winding layer on the first wire winding layer at a second angle to obtain a target prefabricated shell; sequentially needling the carbon fiber net tire layer and the prefabricated carbon fiber net tire to a target preset shell to obtain a prefabricated body with a preset second thickness; carrying out pre-curing, carbonization and densification treatment on the prefabricated body to obtain a densified crucible; carrying out surface treatment, dipping and carbonization treatment on the densified crucible until the density reaches a second preset density to obtain a carbon-carbon crucible; according to the application, the prefabricated mesh felt layers are respectively needled to the two sides of the composite layer, so that when pores in the surface of the densified carbon-carbon crucible are blocked, the prefabricated mesh felt layers can be thinned, the waste of carbon fiber raw materials is avoided, and the production cost is further reduced.
本申请涉及碳碳坩埚技术领域，特别涉及一种碳碳坩埚及其制备方法，方法包括：将回收的碳纤维预制体处理，得到预制碳纤维网胎，并得到预制网胎毡层；将第一缠丝层以第一角度缠绕并将第二缠丝层以第二角度缠绕在第一缠丝层上，得到目标预制壳体；将碳纤维网胎层和预制碳纤维网胎依次针刺至目标预设壳体上，得到预设第二厚度的预制体；对预制体进行预固化、碳化和增密处理得到增密坩埚；对增密坩埚进行表面处理、浸渍和碳化处理，至密度达到第二预设密度，得到碳碳坩埚；本申请将预制网胎毡层分别针刺至复合层的两侧，这能够在使用增密后碳碳坩埚表面孔隙被堵塞时，对预制网胎毡层进行减薄，避免浪费碳纤维原材料，进而降低生产成本。
Carbon-carbon crucible and preparation method thereof
一种碳碳坩埚及其制备方法
LIU SHIWEI (Autor:in) / HU SHIWEI (Autor:in)
24.06.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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