Paint, preparation method thereof and coating moulding method

Abstract

The invention provides a paint, comprising the following components: 35-60 parts by weight of organic silicon dried heat-resisting paint, 35-60 parts by weight of alcohol acid dried heat-resistant varnish, 25-35 parts by weight of crystalline flake graphite, 10-20 parts by weight of chrysotile asbestos, 30-50 parts by weight of air atomized aluminium powder and right amount of diluent, wherein the diluent is amino paint diluent or dimethylbenzene. The invention also provides a preparation method of the paint and a coating moulding method. The paint provided by the invention is formed by mixing the crystalline flake graphite, the organic silicon dried heat-resisting paint and the like, thus the paint has long life after being coated into a coating, no block stripping, foaming or layering phenomenon is caused, and product quality is greatly improved.

Description

technical field

[0001] The invention relates to the field of coatings and a preparation method of coatings. In addition, the present invention also relates to a method for forming a coating on a workpiece using the above-mentioned coating. Background technique

[0002] A sealing coating needs to be installed between the turbine blades of the gas turbine unit and related equipment for the sealing between the corresponding equipment. Such a sealing coating requires both good abradability and good erosion resistance sex. At present, the sealing coating used on gas turbines is generally graphite coating. This type of sealing coating is in contact with the blades during the operation of the gas turbine, and has poor corrosion resistance. It is easy to cause the coating to peel off in pieces, and the sealing performance is greatly weakened. , and even break the blade. In addition, the manufacture of graphite sealing coating is greatly affected by the environment, and changes in...

Examples

Embodiment 1

[0024] The coating of the present invention comprises: 50 parts by weight of organic silicon drying heat-resistant paint, 50 parts by weight of alkyd drying heat-resistant varnish, 28 parts by weight of flake graphite, 16 parts by weight of chrysotile wool, and 40 parts by weight of air atomized aluminum powder And an appropriate amount of thinner, the thinner is preferably an amino paint thinner.

[0025] The preparation method of the coating: weigh 50 parts by weight of organic silicon drying heat-resistant paint, 50 parts by weight of alkyd drying heat-resistant varnish, 28 parts by weight of flake graphite, 16 parts by weight of chrysotile wool and 40 parts by weight of air atomized aluminum powder Put one part into the container and mix well; then add an appropriate amount of amino paint thinner, first stir with a wooden stick, and then mechanically stir until it is evenly paste-like. Preferably, before mixing and stirring, the graphite flakes are baked at 250°C for 2 hou...

Embodiment 2

[0027] The coating of the present invention comprises: 35 parts by weight of organic silicon drying heat-resistant paint, 35 parts by weight of alkyd drying heat-resistant varnish, 25 parts by weight of flake graphite, 10 parts by weight of chrysotile wool, and 30 parts by weight of air atomized aluminum powder And an appropriate amount of thinner, the thinner is preferably an amino paint thinner.

[0028] The preparation method of the coating: weigh 35 parts by weight of organic silicon drying heat-resistant paint, 35 parts by weight of alkyd drying heat-resistant varnish, 25 parts by weight of flake graphite, 10 parts by weight of chrysotile wool and 30 parts by weight of air atomized aluminum powder Put one part into the container and mix well; then add an appropriate amount of amino paint thinner, first stir with a wooden stick, and then mechanically stir until it is evenly paste-like. Preferably, preferably, before mixing and stirring, the graphite flakes are baked at 200...

Embodiment 3

[0030] The coating of the present invention comprises: 60 parts by weight of organic silicon drying heat-resistant paint, 60 parts by weight of alkyd drying heat-resistant varnish, 35 parts by weight of flake graphite, 20 parts by weight of chrysotile wool, and 50 parts by weight of air atomized aluminum powder And an appropriate amount of diluent, the diluent is preferably xylene.

[0031]The preparation method of the coating: weigh 60 parts by weight of organic silicon drying heat-resistant paint, 60 parts by weight of alkyd drying heat-resistant varnish, 35 parts by weight of flake graphite, 20 parts by weight of chrysotile wool and 50 parts by weight of air atomized aluminum powder Put one portion into a container, mix well, add an appropriate amount of xylene, and stir until it becomes a paste. Preferably, before mixing and stirring, the graphite flakes are baked at a temperature of 300°C for 1.5 hours, and then sieved with a 250-mesh screen; before mixing and stirring, t...

technical field

[0001] The invention relates to the field of coatings and a preparation method of coatings. In addition, the present invention also relates to a method for forming a coating on a workpiece using the above-mentioned coating. Background technique

[0002] A sealing coating needs to be installed between the turbine blades of the gas turbine unit and related equipment for the sealing between the corresponding equipment. Such a sealing coating requires both good abradability and good erosion resistance sex. At present, the sealing coating used on gas turbines is generally graphite coating. This type of sealing coating is in contact with the blades during the operation of the gas turbine, and has poor corrosion resistance. It is easy to cause the coating to peel off in pieces, and the sealing performance is greatly weakened. , and even break the blade. In addition, the manufacture of graphite sealing coating is greatly affected by the environment, and changes in...

Examples

Embodiment 1

[0024] The coating of the present invention comprises: 50 parts by weight of organic silicon drying heat-resistant paint, 50 parts by weight of alkyd drying heat-resistant varnish, 28 parts by weight of flake graphite, 16 parts by weight of chrysotile wool, and 40 parts by weight of air atomized aluminum powder And an appropriate amount of thinner, the thinner is preferably an amino paint thinner.

[0025] The preparation method of the coating: weigh 50 parts by weight of organic silicon drying heat-resistant paint, 50 parts by weight of alkyd drying heat-resistant varnish, 28 parts by weight of flake graphite, 16 parts by weight of chrysotile wool and 40 parts by weight of air atomized aluminum powder Put one part into the container and mix well; then add an appropriate amount of amino paint thinner, first stir with a wooden stick, and then mechanically stir until it is evenly paste-like. Preferably, before mixing and stirring, the graphite flakes are baked at 250°C for 2 hou...

Embodiment 2

[0027] The coating of the present invention comprises: 35 parts by weight of organic silicon drying heat-resistant paint, 35 parts by weight of alkyd drying heat-resistant varnish, 25 parts by weight of flake graphite, 10 parts by weight of chrysotile wool, and 30 parts by weight of air atomized aluminum powder And an appropriate amount of thinner, the thinner is preferably an amino paint thinner.

[0028] The preparation method of the coating: weigh 35 parts by weight of organic silicon drying heat-resistant paint, 35 parts by weight of alkyd drying heat-resistant varnish, 25 parts by weight of flake graphite, 10 parts by weight of chrysotile wool and 30 parts by weight of air atomized aluminum powder Put one part into the container and mix well; then add an appropriate amount of amino paint thinner, first stir with a wooden stick, and then mechanically stir until it is evenly paste-like. Preferably, preferably, before mixing and stirring, the graphite flakes are baked at 200...

Embodiment 3

[0030] The coating of the present invention comprises: 60 parts by weight of organic silicon drying heat-resistant paint, 60 parts by weight of alkyd drying heat-resistant varnish, 35 parts by weight of flake graphite, 20 parts by weight of chrysotile wool, and 50 parts by weight of air atomized aluminum powder And an appropriate amount of diluent, the diluent is preferably xylene.

[0031]The preparation method of the coating: weigh 60 parts by weight of organic silicon drying heat-resistant paint, 60 parts by weight of alkyd drying heat-resistant varnish, 35 parts by weight of flake graphite, 20 parts by weight of chrysotile wool and 50 parts by weight of air atomized aluminum powder Put one portion into a container, mix well, add an appropriate amount of xylene, and stir until it becomes a paste. Preferably, before mixing and stirring, the graphite flakes are baked at a temperature of 300°C for 1.5 hours, and then sieved with a 250-mesh screen; before mixing and stirring, t...