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Aviation TC4 titanium plate coating and method for treating titanium plate

A technology of coating and titanium plate, which is applied in the field of aerospace, can solve the problems of easy oxidation and achieve the effect of stable chemical properties

Inactive Publication Date: 2014-02-26
BAOJI BAOYE TITANIUM NICKEL IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a coating for aviation TC4 titanium plate, which solves the problem that the TC4 titanium plate is easily oxidized when heated, does not pollute the titanium plate, and at the same time ensures that the titanium plate has excellent process performance

Method used

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  • Aviation TC4 titanium plate coating and method for treating titanium plate

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Clean the TC4 titanium plate slab; according to the mass percentage, take 42% TiO 2 , 6% of B 4 C, 24% K 2 O SiO 2 , 22% of B 2 o 3 , 6% MgO; then mix the raw materials and ball mill them on a ball mill to form a powdery mixture with a particle size of 350-450 mesh; then add varnish and banana water and stir to a suitable viscosity to obtain an inner coating, and then The inner coating paint is brushed on the surface of the TC4 titanium plate slab with a thickness of 0.3mm, and air-dried naturally; then according to the mass percentage, weigh 0.7% B 2 o 3 , 46% Al 2 o 3 , 30% SiO 2 , 23.3% KOH, then mixed, and ball milled on a ball mill to form a powdery mixture with a particle size of 350-450 mesh; then add varnish and banana water, stir to a suitable viscosity, and brush the outer surface of the inner coating with a thickness of 0.3mm. Naturally air-dried, that is, the treatment of the TC4 titanium plate is completed.

Embodiment 2

[0047] Clean the TC4 titanium plate slab; according to the mass percentage, take 35% TiO 2 , 11% of B 4 C, 28% K 2 O SiO 2 , 16% of B 2 o 3 , 10% MgO; then mix the raw materials and ball mill them on a ball mill to form a powdery mixture with a particle size of 350-450 mesh; then add varnish and banana water and stir to a suitable viscosity to obtain an inner coating, and then Brush the inner coating paint on the surface of TC4 titanium plate slab with a thickness of 0.3mm, and let it dry naturally; then weigh 2% of B 2 o 3 , 36% Al 2 o 3 , 32% SiO 2 , 30% KOH, then mixed, and ball milled on a ball mill to form a powdery mixture with a particle size of 350-450 mesh; then add varnish and banana water, stir to a suitable viscosity, and brush the outer surface of the inner coating with a thickness of 0.3mm. Naturally air-dried, that is, the treatment of the TC4 titanium plate is completed.

Embodiment 3

[0049] Clean the TC4 titanium plate slab; according to the mass percentage, take 38% TiO 2 , 9% of B 4 C, 26% K 2 O SiO 2 , 19% of B 2 o 3 , 8% MgO; then mix the raw materials, and ball mill on a ball mill to form a powdery mixture with a particle size of 350-450 mesh; then add varnish and banana water, stir to a suitable viscosity, and make an inner coating, and then The inner coating paint is brushed on the surface of the TC4 titanium plate slab, the thickness is 0.3mm, and it is air-dried naturally; then according to the mass percentage, weigh 1.5% B 2 o 3 , 41% Al 2 o 3 , 31% SiO 2 , 26.5% KOH, then mixed, and ball milled on a ball mill to form a powdery mixture with a particle size of 350-450 mesh; then add varnish and banana water, stir to a suitable viscosity, and brush the outer surface of the inner coating with a thickness of 0.3mm. Naturally air-dried, that is, the treatment of the TC4 titanium plate is completed.

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Abstract

The invention discloses an aviation TC4 titanium plate coating, which comprises an inner coating and an outer coating, wherein the inner coating comprises the following materials by weight: 35%-42% of TiO2, 6%-11% of B4C, 24%-28% of K2O.SiO2, 16%-22% of B2O3 and 6%-10% of MgO, the sum of mass percents of abovementioned raw materials is 100%; the outer coating comprises the following materials by weight: 0.7%-2.0% of B2O3, 36%-46% of Al2O3, 30%-32% of SiO2 and 23.3%-30% of KOH, and the sum of mass percents of abovementioned raw materials is 100%. The invention further provides a method for treating a titanium plate by the coating, the produced inner coating and the outer coating are brushed on the surface of the titanium plate in sequence so as to solve the problem of easy oxidation of the TC4 titanium plate while heating, and the technique performances of the titanium plate is ensured.

Description

technical field [0001] The invention belongs to the technical field of aerospace and aviation, and relates to an aviation TC4 titanium plate coating, and also relates to a method for treating a titanium plate by using the coating. Background technique [0002] Aviation TC4 titanium plate is a special material for modern aircraft skin, and it is also a typical international titanium alloy. The chemical composition is Ti-6Al-4V. [0003] The largest demand for aviation TC4 titanium plates is Boeing of the United States and Airbus of Europe. The aviation TC4 titanium plate is very easy to get O in the air during the heating process. 2 combine to form TiO 2 、Ti 2 o 3 , a considerable part directly penetrates into the body of the titanium plate, causing cracks in the material during the rolling process, resulting in unsatisfactory final performance. [0004] In the production process of aviation TC4 titanium plate, firstly after forging, surface peeling, and surface pollutio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D7/12
Inventor 戚辉
Owner BAOJI BAOYE TITANIUM NICKEL IND
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