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Method for preparing compound type light-weighted reflecting mirror blank and compound type light-weighted reflecting mirror blank

A mirror and lightweight technology, applied in the field of mirrors, can solve the problems of reducing the quality of the mirror body, low yield, insufficient bonding strength of the alloy substrate and glass, etc., and achieve the effects of stable process, high yield, and lower connection temperature

Active Publication Date: 2016-04-20
LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method adopts lightweight high-temperature structural material TiAl alloy as the mirror body, which effectively reduces the quality of the mirror body; however, the preparation method still uses the method disclosed in CN1317699A, and the yield is also very low, and the bonding strength of the alloy substrate and the glass is not enough. Difficult to meet practical application problems

Method used

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  • Method for preparing compound type light-weighted reflecting mirror blank and compound type light-weighted reflecting mirror blank
  • Method for preparing compound type light-weighted reflecting mirror blank and compound type light-weighted reflecting mirror blank
  • Method for preparing compound type light-weighted reflecting mirror blank and compound type light-weighted reflecting mirror blank

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The preparation method of the composite lightweight reflector blank of the present embodiment comprises the following steps:

[0036] 1) Grinding and polishing: Take a titanium substrate (industrial pure titanium TA1) with a length of 100mm, a width of 70mm, and a height of 12mm, and use 80#, 150#, 400#, 600#, 800#, 1000#, 1400#, 1600 #Water sandpaper grinds the surface step by step to make the surface smooth;

[0037] 2) Alkaline cleaning and degreasing: Soak the titanium base in 85°C mixed lye for 25 minutes to remove the grease on the surface of the titanium base; the mixed lye is 50g of sodium hydroxide, 30g of sodium silicate and 50g of phosphoric acid Made by dissolving sodium in 1000ml water;

[0038] 3) pickling activation: the titanium substrate is placed in the pickling solution for pickling, the pickling time is 60s, the oxide film on the surface of the titanium substrate is removed, the titanium substrate is activated, and an activated substrate is obtained...

Embodiment 2

[0047] The preparation method of the composite lightweight reflector blank of the present embodiment comprises the following steps:

[0048] 1) Grinding and polishing: Take a titanium substrate (titanium alloy TC4) with a length of 100mm, a width of 70mm, and a height of 12mm, and use 80#, 150#, 400#, 600#, 800#, 1000#, 1400#, 1600# for the titanium substrate Water sandpaper grinds the surface step by step to make the surface smooth;

[0049] 2) Alkaline cleaning and degreasing: Soak the titanium base in 90°C mixed lye for 20 minutes to remove the grease on the surface of the titanium base; the mixed lye is 50g of sodium hydroxide, 30g of sodium silicate and 50g of phosphoric acid Made by dissolving sodium in 1000ml water;

[0050] 3) pickling activation: the titanium substrate is placed in the pickling solution for pickling, the pickling time is 90s, the oxide film on the surface of the titanium substrate is removed, the titanium substrate is activated, and an activated subs...

Embodiment 3

[0059] The preparation method of the composite lightweight reflector blank of the present embodiment comprises the following steps:

[0060] 1) Grinding and polishing: Take a titanium substrate (industrial pure titanium TA1) with a length of 100mm, a width of 70mm, and a height of 12mm, and use 80#, 150#, 400#, 600#, 800#, 1000#, 1400#, 1600 #Water sandpaper grinds the surface step by step to make the surface smooth;

[0061] 2) Alkaline cleaning and degreasing: Soak the titanium substrate in 80°C mixed lye for 30 minutes to remove the grease on the surface of the titanium substrate; the mixed lye is 50g of sodium hydroxide, 30g of sodium silicate and 50g of phosphoric acid Made by dissolving sodium in 1000ml water;

[0062] 3) pickling activation: the titanium substrate is placed in a pickling solution for pickling, the pickling time is 30s, the oxide film on the surface of the titanium substrate is removed, the titanium substrate is activated, and an activated substrate is ...

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Abstract

The invention discloses a method for preparing a compound type light-weighted reflecting mirror blank and the compound type light-weighted reflecting mirror blank. The preparation method comprises the steps: (1) acid pickling and activation, specifically, placing a titanium substrate into a pickling solution to be subjected to acid pickling and activation to obtain an activated substrate; (2) electrochemical oxidation, specifically, forming a titanium oxidation layer on a junction surface of the activated substrate through electrochemical oxidation, and obtaining an oxidized substrate; and (3) diffusion bonding, specifically, enabling the junction surface of glass to be closely attached to the oxidation layer of the oxidized substrate, and obtaining the compound type light-weighted reflecting mirror blank through hot-pressing diffusion bonding or field-assisted diffusion bonding. According to the preparation method, the compact and uniform titanium oxidation layer (a low-valence titanium oxide film) is formed on the surface of the substrate through electrochemical oxidation; the junction surface of the glass and the titanium oxidation layer of the substrate are closely attached to each other to be subjected to diffusion bonding; the process is stable, and the rate of finished products is high; the bonding strength of the titanium substrate and the glass in the reflecting mirror blank is high, and the compound type light-weighted reflecting mirror blank can be widely applied to optical fast scanning and tracking systems of numerous types of photoelectric detection equipment such as aircraft photoelectric reconnaissance radars and tank fire control stabilized sighting systems.

Description

technical field [0001] The invention belongs to the technical field of reflectors, and in particular relates to a method for preparing a composite lightweight reflector blank, and also relates to a composite lightweight reflector blank prepared by the preparation method. Background technique [0002] Lightweight reflectors are widely used in optical fast-scan tracking systems of photoelectric radars, remote sensing reconnaissance cameras, tank fire control targeting systems, and reconnaissance pods. There are many types of lightweight mirrors, currently there are five main categories: glass-based mirrors, SiC-based mirrors, SiC composite-based mirrors, metal-based mirrors and composite mirrors. In terms of research and application, these lightweight mirrors have good development prospects, but each lightweight mirror has shortcomings and deficiencies. Improving the preparation method of lightweight mirrors and developing new methods for the preparation of lightweight mirror...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/26C03C27/00
CPCC03C27/00C25D11/26
Inventor 陈小鹏李号召套格套王一坚刘佳琳张林超袁兆峰关钧戈孙红晓
Owner LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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