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Sand blasting process of aviation fire-extinguishing bottle dome

A technology of fire extinguisher head and fire extinguisher, which is applied in the field of aviation fire extinguisher, can solve the problems of uneven wall thickness, increased overall weight of fire extinguisher, affecting the performance and use effect of aeroengine fire extinguisher, etc., so as to reduce product weight and guarantee The effect of product performance

Active Publication Date: 2014-04-02
常州蓝翼飞机装备制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the traditional process, it is difficult to control the thinning of the head during molding, and the wall thickness is very uneven, which leads to the increase of the overall weight of the fire extinguisher, which affects the overall performance and use effect of the aero-engine fire extinguisher.

Method used

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  • Sand blasting process of aviation fire-extinguishing bottle dome

Examples

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Comparison scheme
Effect test

Embodiment 1

[0014] see figure 1 , Embodiment 1: a kind of sand blasting process of aviation fire extinguishing bottle head, comprises the following steps:

[0015] a. Pretreatment: inspect the sandblasting machine, air compressor and sandblasting nozzle 2, and feed 0.5MPa compressed air into the air compressor;

[0016] b. Sandblasting: sandblasting the head of the fire extinguisher to remove the scale, welding slag and oil stains on the fire extinguisher, set baffles 1 on both sides of the sandblasting nozzle 2, and during the sandblasting process, the sandblasting nozzle 2 moves slowly , and the fire extinguisher rotates at a constant speed of 1 revolution per minute;

[0017] c. Cleaning: Blow out dry compressed air through the air compressor to clean up the sand and ash on the surface of the head of the fire extinguisher;

[0018] d. Inspection: Check the roughness of the surface of the head of the fire extinguisher. The head should have uniform roughness, the roughness is Sa2.5...

Embodiment 2

[0019] Embodiment 2: a kind of sand blasting process of aviation fire extinguishing bottle head, comprises the following steps:

[0020] a. Pretreatment: check the sandblasting machine, air compressor and sandblasting nozzle 2, and feed 0.55MPa compressed air into the air compressor;

[0021] b. Sandblasting: sandblasting the head of the fire extinguisher to remove the scale, welding slag and oil stains on the fire extinguisher, set baffles 1 on both sides of the sandblasting nozzle 2, and during the sandblasting process, the sandblasting nozzle 2 moves slowly , and the fire extinguisher rotates at a constant speed of 2 revolutions per minute;

[0022] c. Cleaning: Blow out dry compressed air through the air compressor to clean up the sand and ash on the surface of the head of the fire extinguisher;

[0023] d. Inspection: Check the roughness of the surface of the head of the fire extinguisher. The head should have uniform roughness, the roughness is Sa2.5, and there shou...

Embodiment 3

[0024] Embodiment 3: a kind of sandblasting process of aviation fire extinguishing bottle head, comprises the following steps:

[0025] a. Pretreatment: inspect the sandblasting machine, air compressor and sandblasting nozzle 2, and feed 0.6MPa compressed air into the air compressor;

[0026] b. Sandblasting: sandblasting the head of the fire extinguisher to remove the scale, welding slag and oil stains on the fire extinguisher, set baffles 1 on both sides of the sandblasting nozzle 2, and during the sandblasting process, the sandblasting nozzle 2 moves slowly , and the fire extinguisher rotates at a constant speed of 3 revolutions per minute;

[0027] c. Cleaning: Blow out dry compressed air through the air compressor to clean up the sand and ash on the surface of the head of the fire extinguisher;

[0028] d. Inspection: Check the roughness of the surface of the head of the fire extinguisher. The head should have uniform roughness, the roughness is Sa2.5, and there shou...

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Abstract

The present invention discloses a sand blasting process of an aviation fire-extinguishing bottle dome. The sand blasting process comprises: a, a pretreatment, wherein a sand blasting machine, an air compressor and a sand blasting nozzle are tested, and compressed air is introduced into the air compressor; b, sand blasting, wherein sand blasting is performed on a fire-extinguishing bottle dome, both sides of the sand blasting nozzle are respectively provided with a baffle, and during a sand blasting process, the sand blasting nozzle move slowly and the fire-extinguishing bottle rotates at a uniform speed; c, cleaning, wherein sand and lime sand on the fire-extinguishing bottle dome surface are cleaned; and d, testing, wherein roughness of the fire-extinguishing bottle dome surface is tested. According to the manner, with the sand blasting process, wall thickness uniformity during a dome molding process can be effectively controlled, and the product weight can be reduced on the basis of assurance of the product performance.

Description

technical field [0001] The invention relates to the field of aviation fire extinguishing bottles, in particular to a sandblasting process for the head of an aviation fire extinguishing bottle. Background technique [0002] As an airborne accessory, the aero-engine fire extinguisher has extremely high requirements on weight while ensuring product performance. In the traditional process, it is difficult to control the thinning of the head during molding, and the wall thickness is very uneven, which leads to the increase of the overall weight of the fire extinguisher, which affects the overall performance and use effect of the aero-engine fire extinguisher. Contents of the invention [0003] The main technical problem to be solved by the present invention is to provide a sandblasting process for the head of an aviation fire extinguisher, which can effectively control the uniformity of wall thickness during the forming process of the head, and reduce the weight of the product ...

Claims

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Application Information

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IPC IPC(8): B24C1/10
Inventor 姚宏钢
Owner 常州蓝翼飞机装备制造有限公司
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