Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method for extruded pressureless sintered silicon carbide pipe
The invention discloses a preparation method for an extruded pressureless sintered silicon carbide pipe. The preparation method comprises the following steps: preparing a base material from 95-99wt% of submicron silicon carbide and 1-5wt% of boron carbide; adding submicron silicon carbide, boron carbide, tetramethylammonium hydroxide, water-soluble resin, high polymer polysaccharide, a lubricant and de-ionized water into a ball mill for stirring and ball-milling, performing mud refining and ageing, putting aged mud into an extruder for extrusion forming to obtain a pipe billet, and performing shaping by drying in the shade, microwave drying and high-temperature sintering (at 2,000-2,200 DEG C for 0.5-2 hours) on the pipe billet in sequence to obtain the silicon carbide pipe. With the adoption of the preparation method, the straightness tolerance of the obtained silicon carbide pipe can be guaranteed to be within 1 mm/m.
Preparation method for extruded pressureless sintered silicon carbide pipe
The invention discloses a preparation method for an extruded pressureless sintered silicon carbide pipe. The preparation method comprises the following steps: preparing a base material from 95-99wt% of submicron silicon carbide and 1-5wt% of boron carbide; adding submicron silicon carbide, boron carbide, tetramethylammonium hydroxide, water-soluble resin, high polymer polysaccharide, a lubricant and de-ionized water into a ball mill for stirring and ball-milling, performing mud refining and ageing, putting aged mud into an extruder for extrusion forming to obtain a pipe billet, and performing shaping by drying in the shade, microwave drying and high-temperature sintering (at 2,000-2,200 DEG C for 0.5-2 hours) on the pipe billet in sequence to obtain the silicon carbide pipe. With the adoption of the preparation method, the straightness tolerance of the obtained silicon carbide pipe can be guaranteed to be within 1 mm/m.
Preparation method for extruded pressureless sintered silicon carbide pipe
ZHENG PU (Autor:in) / YANG XINLING (Autor:in) / LI ZHIQIANG (Autor:in)
29.04.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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