Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for densifying fibrous structure by injecting slurry
The invention relates to a method for densifying a fibrous structure made of a ceramic material for use in an injection apparatus comprising:-a mold cavity defined between a mold and a counter-mold, the mold cavity defining an internal space; and-a membrane comprising a reinforcement zone to be placed between the fibrous structure in the mold cavity and the counter mold, the reinforcement zone of the membrane having a Young's modulus greater than 200 GPa, the method comprising:-placing (110) a pre-densified fibrous structure in the mold cavity, the pre-densified fibrous structure having corrugations on the surface, and placing the membrane on the pre-densified fibrous structure such that the reinforcement regions of the membrane are in contact with the peaks of the corrugations of the pre-densified fibrous structure; closing (120) the injection apparatus by placing a counter mold on the membrane and applying a pressing pressure (Ppressing) to the membrane to maintain the reinforcing regions of the membrane in contact with the peaks of the corrugations of the pre-densified fibrous structure; and densifying (130) the pre-densified fibrous structure by infiltrating a slurry into the pores of the pre-densified fibrous structure, the slurry being injected into the mold cavity laterally with respect to the membrane under an injection pressure (Pinjection) such that the pressure difference between the pressing pressure and the injection pressure is between 0.5 x105 Pa and 6 x105 Pa.
本发明涉及一种致密化在注射设备中使用的由陶瓷材料制成的纤维结构的方法，该注射设备包括：‑限定在模具与对向模具之间的模腔，该模腔限定内部空间；以及‑包括加强区的膜，该膜将放置在模腔中的纤维结构与对向模具之间，膜的加强区具有大于200GPa的杨氏模量，该方法包括：‑在模腔中放置(110)预致密化的纤维结构，该预致密化的纤维结构在表面上具有波纹，且将膜放置在预致密化的纤维结构上使得膜的加强区与预致密化的纤维结构的波纹的峰部接触；‑通过将对向模具放置在膜上并对膜施加压紧压力(P压紧)以保持膜的加强区与预致密化的纤维结构的波纹的峰部接触，来闭合(120)注射设备；和‑通过将浆料渗透到预致密化的纤维结构的孔隙中来致密化(130)预致密化的纤维结构，浆料在注射压力(P注射)下侧向于膜注射到模腔中，使得压紧压力与注射压力之间的压力差在0.5x105Pa与6x105Pa之间。
Method for densifying fibrous structure by injecting slurry
The invention relates to a method for densifying a fibrous structure made of a ceramic material for use in an injection apparatus comprising:-a mold cavity defined between a mold and a counter-mold, the mold cavity defining an internal space; and-a membrane comprising a reinforcement zone to be placed between the fibrous structure in the mold cavity and the counter mold, the reinforcement zone of the membrane having a Young's modulus greater than 200 GPa, the method comprising:-placing (110) a pre-densified fibrous structure in the mold cavity, the pre-densified fibrous structure having corrugations on the surface, and placing the membrane on the pre-densified fibrous structure such that the reinforcement regions of the membrane are in contact with the peaks of the corrugations of the pre-densified fibrous structure; closing (120) the injection apparatus by placing a counter mold on the membrane and applying a pressing pressure (Ppressing) to the membrane to maintain the reinforcing regions of the membrane in contact with the peaks of the corrugations of the pre-densified fibrous structure; and densifying (130) the pre-densified fibrous structure by infiltrating a slurry into the pores of the pre-densified fibrous structure, the slurry being injected into the mold cavity laterally with respect to the membrane under an injection pressure (Pinjection) such that the pressure difference between the pressing pressure and the injection pressure is between 0.5 x105 Pa and 6 x105 Pa.
本发明涉及一种致密化在注射设备中使用的由陶瓷材料制成的纤维结构的方法，该注射设备包括：‑限定在模具与对向模具之间的模腔，该模腔限定内部空间；以及‑包括加强区的膜，该膜将放置在模腔中的纤维结构与对向模具之间，膜的加强区具有大于200GPa的杨氏模量，该方法包括：‑在模腔中放置(110)预致密化的纤维结构，该预致密化的纤维结构在表面上具有波纹，且将膜放置在预致密化的纤维结构上使得膜的加强区与预致密化的纤维结构的波纹的峰部接触；‑通过将对向模具放置在膜上并对膜施加压紧压力(P压紧)以保持膜的加强区与预致密化的纤维结构的波纹的峰部接触，来闭合(120)注射设备；和‑通过将浆料渗透到预致密化的纤维结构的孔隙中来致密化(130)预致密化的纤维结构，浆料在注射压力(P注射)下侧向于膜注射到模腔中，使得压紧压力与注射压力之间的压力差在0.5x105Pa与6x105Pa之间。
Method for densifying fibrous structure by injecting slurry
通过注入浆料使纤维结构致密化的方法
EBERLING-FUX NICOLAS (Autor:in) / ROUSSILLE CLEMENT MARIE BENOIT (Autor:in) / BAZEK MELISSA (Autor:in) / CUMINTI PAOLO (Autor:in)
22.11.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
B29C
Formen oder Verbinden von Kunststoffen
,
SHAPING OR JOINING OF PLASTICS
/
C04B
Kalk
,
LIME
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