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Planar quick-start heater assembly and preparation method thereof

A planar and component technology, applied in the field of planar fast-start thermal sub-components and preparation, can solve the problems of insufficient heating efficiency and reliability, and achieve the effects of improving quick start-up time, increasing cross-sectional area, and reducing net volume

Pending Publication Date: 2020-05-05
NANJING SANLE GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: The present invention proposes a planar quick-start heating subassembly, which can solve the shortage of heating efficiency and reliability of the existing quick-start heating sub-structure, and improve the heating efficiency and reliability of the quick-start heating sub-assembly

Method used

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  • Planar quick-start heater assembly and preparation method thereof
  • Planar quick-start heater assembly and preparation method thereof
  • Planar quick-start heater assembly and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (a) A single-helix hot wire blank is wound on a hot wire machine, and its structure schematic diagram is as follows image 3 As shown, the diameter of the core wire is 0.4mm, the winding diameter is 0.09mm, the pitch of the single helix is ​​0.2mm, and the number of turns of the blank is 35;

[0031] (b) Use a pressure of 20MPa on the hydraulic press to press the hot wire blank into a flat shape;

[0032] (c) Winding the flat heating wire blank on the heating wire mold to form a plane e-shaped structure heating wire, leaving the heating wire legs at both ends to obtain the heating wire body;

[0033] (d) Shape the hot wire body in a hydrogen furnace at a temperature of 1500°C for 25 minutes;

[0034] (e) dilute the hot wire body after shaping with sulfuric acid and nitric acid to remove the core wire in a certain proportion, and tightly wind the spring on the hot wire leg;

[0035] (f) attaching a layer of aluminum oxide insulating layer on the surface of the heating ...

Embodiment 2

[0038] (a) Winding a single helical hot wire blank on a hot wire machine, wherein the diameter of the core wire is 0.45 mm, the winding diameter is 0.10 mm, the pitch of the single helix is ​​0.25 mm, and the number of turns of the blank is 37;

[0039] (b) Use a pressure of 25MPa on the hydraulic press to press the hot wire blank into a flat shape;

[0040] (c) Winding the flat heating wire blank on the heating wire mold to form a plane e-shaped structure heating wire, leaving the heating wire legs at both ends to obtain the heating wire body;

[0041] (d) Shape the hot wire body in a hydrogen furnace at a temperature of 1550°C for 20 minutes;

[0042] (e) dilute the hot wire body after shaping with sulfuric acid and nitric acid to remove the core wire in a certain proportion, and tightly wind the spring on the hot wire leg;

[0043] (f) using the electrophoresis method to attach a layer of aluminum oxide insulation layer on the surface of the hot wire with the hot wire body...

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Abstract

The invention discloses a planar quick-start heater assembly and a preparation method thereof. The planar quick-start heater assembly comprises a hot wire body and a hot wire cylinder. The hot wire body comprises a hot wire and hot wire legs arranged at two ends of the hot wire. Corundum micro-powder slurry is poured into the hot wire cylinder, the hot wire is of a planar e-shaped structure, and springs are closely wound on the hot wire legs. The preparation method comprises the following steps: (a) winding a single-spiral hot wire blank; (b) pressing the blank into a flat shape; (c) winding the hot wire blank into a hot wire with a planar e-shaped structure to obtain the hot wire body; (d) carrying out shaping in a hydrogen furnace; (e) removing core wires by corrosion; (f) attaching an insulating layer to the surface of the hot wire through an electrophoresis method; and (g) combining the hot wire body and the hot wire cylinder, and pouring the corundum micro-powder slurry to form the assembly. According to the miniaturized planar e-shaped structure hot wire structure, the cross sectional area of the heating body is increased, the heat transfer path is shortened, the bending angle is small, and the heating efficiency and reliability of the assembly are improved; and the invention can be applied to the quick-start heater assembly for the traveling-wave tube.

Description

technical field [0001] The invention relates to a planar quick-start heating subassembly and a preparation method, in particular to a miniaturized planar e-type quick-start heating subassembly and a preparation method. Background technique [0002] In missile-borne platforms and some space defense systems, traveling wave tube amplifiers with quick start function need to be configured, which are mainly used in decoy systems. This system turns passive defense in electronic countermeasures into active deceptive jamming and better protects our side. Equipment to increase the survival rate on the battlefield. The quick start time is the core index in the bait system, which is determined by the quick start time of the traveling wave tube, and the quick start time of the traveling wave tube is closely related to the quick start time of the cathode heating wire assembly. The smaller the structural size of the cathode thermal subassembly, the higher the heating efficiency and the sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J9/02H01J9/04H01J25/34
CPCH01J9/02H01J9/04H01J25/34
Inventor 武元元范亚松张坤胡文景梁田赵请王玉春
Owner NANJING SANLE GROUP
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