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A platform for research: civil engineering, architecture and urbanism
Preparation method of traveling wave tube clamping rod
The invention discloses a traveling wave tube clamping rod preparation method which comprises the following steps: S1, weighing the following material powder according to the mass ratio: 95-99% of nitride ceramic powder; 0.3 to 1.8% of sintering aid powder; 0 to 1.2 percent of titanium; 0 to 1.5 percent of aluminum; 0 to 0.8 percent of lanthanum; 0-0.5% of tantalum; s2, carrying out ball milling on the mixed material in the step S1 for more than 36 hours; s3, baking the mixed material for 8 hours; s4, adding 7.5% of a binder into the mixed material, and banburying for more than 4 hours in a banburying chamber at 80 DEG C; s5, extruding the slurry subjected to internal mixing in the step S4 into a rod; s6, the rod blank in the step S5 is put into a nitrogen atmosphere furnace at the temperature of 1330-1400 DEG C to be subjected to heat preservation for 1-2 h, and the ceramic center rod is fired; s7, spraying a ceramic dielectric material on the ceramic center rod and drying the ceramic dielectric material; s8, spraying a heat dissipation material on the outer layer of the dielectric material and drying; and S9, the ceramic center rod sprayed with the heat dissipation material is put into a nitrogen furnace at the temperature of 1400-1500 DEG C, heat preservation is conducted for 2-3 h, and sintering is conducted to form ceramic. The traveling wave tube clamping rod prepared by the invention has the advantages of small high-frequency loss, fast heat dissipation and the like.
本发明公开了行波管夹持杆的制备方法，包括以下步骤：S1按质量比称取以下物料粉末，氮化物陶瓷粉末95～99％；助烧剂粉末0.3～1.8％；钛0～1.2％；铝0～1.5％；镧0～0.8％；钽0～0.5％；S2：将步骤S1的混合物料球磨36h以上；S3：将混合物料烘烤8h；S4：将混合物料加入7.5％粘结剂，并在80℃的密炼室进行密炼4h以上；S5：将步骤S4中密炼好的浆料挤制成杆；S6：将步骤S5中的杆坯件放入1330～1400℃的氮气氛炉中保温1～2h烧成陶瓷中心杆；S7：在陶瓷中心杆上喷涂陶瓷介质材料并烘干；S8：在介质材料外层再喷涂散热材料并烘干；S9：将喷涂完毕散热材料的陶瓷中心杆放入1400～1500℃的氮气炉里中保温2～3h烧结成瓷。本发明所制备的行波管夹持杆具有高频损耗小，散热快等优点。
Preparation method of traveling wave tube clamping rod
The invention discloses a traveling wave tube clamping rod preparation method which comprises the following steps: S1, weighing the following material powder according to the mass ratio: 95-99% of nitride ceramic powder; 0.3 to 1.8% of sintering aid powder; 0 to 1.2 percent of titanium; 0 to 1.5 percent of aluminum; 0 to 0.8 percent of lanthanum; 0-0.5% of tantalum; s2, carrying out ball milling on the mixed material in the step S1 for more than 36 hours; s3, baking the mixed material for 8 hours; s4, adding 7.5% of a binder into the mixed material, and banburying for more than 4 hours in a banburying chamber at 80 DEG C; s5, extruding the slurry subjected to internal mixing in the step S4 into a rod; s6, the rod blank in the step S5 is put into a nitrogen atmosphere furnace at the temperature of 1330-1400 DEG C to be subjected to heat preservation for 1-2 h, and the ceramic center rod is fired; s7, spraying a ceramic dielectric material on the ceramic center rod and drying the ceramic dielectric material; s8, spraying a heat dissipation material on the outer layer of the dielectric material and drying; and S9, the ceramic center rod sprayed with the heat dissipation material is put into a nitrogen furnace at the temperature of 1400-1500 DEG C, heat preservation is conducted for 2-3 h, and sintering is conducted to form ceramic. The traveling wave tube clamping rod prepared by the invention has the advantages of small high-frequency loss, fast heat dissipation and the like.
本发明公开了行波管夹持杆的制备方法，包括以下步骤：S1按质量比称取以下物料粉末，氮化物陶瓷粉末95～99％；助烧剂粉末0.3～1.8％；钛0～1.2％；铝0～1.5％；镧0～0.8％；钽0～0.5％；S2：将步骤S1的混合物料球磨36h以上；S3：将混合物料烘烤8h；S4：将混合物料加入7.5％粘结剂，并在80℃的密炼室进行密炼4h以上；S5：将步骤S4中密炼好的浆料挤制成杆；S6：将步骤S5中的杆坯件放入1330～1400℃的氮气氛炉中保温1～2h烧成陶瓷中心杆；S7：在陶瓷中心杆上喷涂陶瓷介质材料并烘干；S8：在介质材料外层再喷涂散热材料并烘干；S9：将喷涂完毕散热材料的陶瓷中心杆放入1400～1500℃的氮气炉里中保温2～3h烧结成瓷。本发明所制备的行波管夹持杆具有高频损耗小，散热快等优点。
Preparation method of traveling wave tube clamping rod
一种行波管夹持杆的制备方法
KANG DINGHUA (author) / FANG JIAN (author) / KANG WENTAO (author)
2022-05-27
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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