CN106757000A

CN106757000A - The method that composite anti-corrosive coating is prepared using laser melting and coating technique

Info

Publication number: CN106757000A
Application number: CN201611160911.6A
Authority: CN
Inventors: 张瑞珠; 李林杰; 任洋洋; 郭朋彦; 郭晓刚; 贾新杰
Original assignee: North China University of Water Resources and Electric Power
Current assignee: North China University of Water Resources and Electric Power
Priority date: 2016-12-15
Filing date: 2016-12-15
Publication date: 2017-05-31

Abstract

Method the invention discloses composite anti-corrosive coating is prepared using laser melting and coating technique, is comprised the following steps that：（1）Prepare the Fe-Ni Alloy Powder of laser melting coating：1.5 parts and 2.0 3.0 parts of Al of 5.0 6.0 parts of 2.0 3.0 parts of 5.2 5.8 parts of 3.5 4.5 parts of 14.8 15.2 parts of 14.8 15.2 parts of 48 49 parts of Fe, Ni, Cr, W, Mo, B, Si, Co0.5, raw material chooses the metal dust of respective element；（2）Laser melting coating；（3）Modified 505 epoxy resin are prepared, and deployed modified 505 epoxy resin are sprayed on step（2）The laser cladding coating surface of preparation, you can obtain composite anti-corrosive coating.The heat of the laser melting coating in the present invention is concentrated, and it is small that heating cools down fast heat affected area soon, has the advantages that other thermals source are incomparable to melting between unlike material；Due to the glass flake containing pigment volume concentration (PVC) higher in film, the alternately stacked arrangement in film forms " labyrinth " effect, thus film has excellent shielding and permeability resistance, corrosion-resistant medium osmosis corrosion.

Description

The method that composite anti-corrosive coating is prepared using laser melting and coating technique

Technical field

The invention belongs to composite anti-corrosive coating technology field, and in particular to one kind is prepared compound anti-using laser melting and coating technique The method of rotten coating.

Background technology

With national economy and the sustainable development of capital construction, key state project and heavy construction it is etch-proof require More and more higher, large-scale steel equipment, component, pipeline propose requirement higher to coating, that is, require that coating has excellent anti- Rust Corrosion Protection, must there is good application property, adaptability and durability again.But, traditional epoxy anti-rust paint is to steel Body structure surface processing requirement is higher, when the engineering project run wants Painting in Maintenance, it is necessary to carry out secondary high-quality rust cleaning Treatment, every few years must be overhauled reprocesses coating of application again, to prevent steel corrosion.

Especially in key water control project, operating mode is sufficiently complex, and its surface coating will not only face the corruption of various soda acids in water Erosion, also faces the erosion of current, silt, and this corrosion-resistant abrasion coating to us proposes requirement very high, and general coating is difficult With competent；In addition, during the stoppage in transit of key water control project is overhauled, can be because the stoppage in transit of water conservancy machinery causes the damage for being difficult to make up Lose, therefore it is problem demanding prompt solution to invent a kind of abrasion resistant anticorrosive paint for being capable of permanently effective protection key water control project.

The content of the invention

In order to overcome the deficiencies in the prior art, the present invention to provide a kind of compound anti-using laser melting and coating technique preparation The method of rotten coating.

The purpose of the present invention is realized in the following manner：

The method that composite anti-corrosive coating is prepared using laser melting and coating technique, is comprised the following steps that：

（1）Prepare the Fe-Ni Alloy Powder of laser melting coating：The Fe-Ni Alloy Powder is made up of the raw material of following weight portion：Fe 48-49 parts, Ni 14.8-15.2 parts, Cr 14.8-15.2 parts, W 3.5-4.5 parts, Mo 5.2-5.8 parts, B 2.0-3.0 parts, Si 5.0-6.0 parts, Co0.5-1.5 parts and Al 2.0-3.0 parts, raw material chooses the metal dust of respective element；

（2）Laser melting coating：Using CO₂Laser carries out Laser Cladding Treatment, light beam under argon gas guard mode to blade base A diameter of Φ 2-4 mm, laser power is 3-4 kW, and sweep speed is 2-5 mm/s, and pressure is coaxially blown into laser beam is 0.40-5.0MPa argon gas is protected, and to prevent melt oxidation, the surface after laser melting coating is polished flat with sand paper then；

（3）Prepare modified 505 epoxy resin：Modified 505 epoxy coatings include first component and component B；

The first component is prepared from the following raw materials in parts by weight：Bisphenol A type epoxy resin 32-45 parts, glass flake 4-7 parts, Pigment 13-17 parts, filler 4-7 parts, auxiliary agent 1.3-2.2 parts, diluent 2-4 parts；

The component B is prepared from the following raw materials in parts by weight：Polyamide curing agent 35-50 parts, pigment 13-17 parts, filler 4- 7 parts, anti-settling agent 0.7-1.2 parts, solvent 40-60 parts；

The first component is 10 with the mass ratio of component B：（1-1.2）；

（4）The preparation of the first component of modified 505 epoxy resin：Bisphenol A type epoxy resin, auxiliary agent and diluent are put into dispersion machine In be stirred, mixing time is 20-30min, and mixing speed is 90-100r/min, is subsequently adding pigment and filler, stirring 15-25 min, mixing speed 110-120r/min, the mixture after stirring are transferred in sand mill and are ground, and are ground to Fineness≤60 μm, the mixture after grinding is transferred in dispersion machine, is added glass flake and is stirred 20-40 min, finally Add diluent to the viscosity of gained first component be with apply -4 glasss of viscosity meters be 50-60s；

（5）The preparation of the component B of modified 505 epoxy resin：By in each raw material addition agitator tank of component B, stir, so Afterwards by the mixture strainer filtering for stirring, you can obtain component B；

（6）By step（4）The first component and step of preparation（5）The component B of preparation stirs respectively, and mixes in mass ratio Allotment uniformly obtains final product modified 505 epoxy resin, then deployed modified 505 epoxy resin are sprayed on into step（2）What is prepared swashs Light cladding coating surface, you can obtain composite anti-corrosive coating.

Comprise the following steps that：

（1）Prepare the Fe-Ni Alloy Powder of laser melting coating：The Fe-Ni Alloy Powder is made up of the raw material of following weight portion：Fe 49 parts, 15 parts of Ni, 15 parts of Cr, 4 parts of W, 5.5 parts of Mo, 2.5 parts of B, 5.5 parts of Si, Co1 parts and 2.5 parts of Al, raw material is chosen The metal dust of respective element；

（2）Laser melting coating：Using CO₂Laser carries out Laser Cladding Treatment, light beam under argon gas guard mode to blade base The mm of a diameter of Φ 3, laser power is 4kW, and sweep speed is 3 mm/s, and pressure is coaxially blown into laser beam for 0.45MPa argons Gas shielded, to prevent melt oxidation, then polishes flat the surface after laser melting coating with sand paper；

The first component is prepared from the following raw materials in parts by weight：40 parts of bisphenol A type epoxy resin, 5 parts of glass flake, pigment 15 Part, 5 parts of filler, 2 parts of auxiliary agent, 3 parts of diluent；

The component B is prepared from the following raw materials in parts by weight：It is 40 parts of polyamide curing agent, 15 parts of pigment, 5 parts of filler, anti-settling 0.8 part of agent, 50 parts of solvent；

The first component is 10 with the mass ratio of component B：1.1；

（4）The preparation of the first component of modified 505 epoxy resin：Bisphenol A type epoxy resin, auxiliary agent and diluent are put into dispersion machine In be stirred, mixing time is 25min, and mixing speed is 95r/min, is subsequently adding pigment and filler, stirs 20 min, is stirred Speed 115r/min is mixed, the mixture after stirring is transferred in sand mill and is ground, be ground to fineness≤60 μm, will ground Mixture afterwards is transferred in dispersion machine, is added glass flake and is stirred 30 min, is eventually adding diluent to gained first group Part viscosity be with apply -4 glasss of viscosity meters be 55s；

The glass flake is the glass flake being surface-treated by silane coupler, and granularity is 200-300 mesh.

The step（5）The pigment of component A and the pigment of B component be phosphorus zinc white, epoxy iron red shop, titanium dioxide, trbasic zinc phosphate, One or more in N330 carbon blacks.

The step（5）It is mixed with calcium carbonate that the filler of component A and the filler of B component are 1000-1250 mesh talcum powder Compound, talcum powder is 4 with the mass ratio of calcium carbonate:3.

The auxiliary agent is that pigment affinity groups polymer copolymerization body dispersant, 606 defoamers, anti-sagging agent and modified urea are molten The mixture of liquid rheological agent, pigment affinity groups polymer copolymerization body dispersant：606 defoamers：Anti-sagging agent：Modified urea solution The mass ratio of rheological agent is 0.2:0.4:0.3:0.6.

The pigment affinity groups polymer copolymerization body dispersant is XH-9001 aqueous dispersions, SP-712 aqueous dispersions Agent, one or more in DP490 aqueous dispersions；Anti-sagging agent is NUVIS BEZ 75, byk410, the one kind in AT720 Or it is several；Modified urea solution rheological agent is DeuRheo201P, one or more in DeuRheo 202P, DeuRheo 211F.

The diluent is made up of the raw material of following weight portion：5 parts of dimethylbenzene, 4 parts of n-butanol, propylene glycol methyl ether acetate 1 part；The solvent is made up of the raw material of following weight portion：7 parts of dimethylbenzene, 3 parts of butanol；The anti-settling agent is that polyamide wax is anti-settling Agent 6900.

Relative to prior art, the beneficial effects of the invention are as follows：

（1）The heat of the laser melting coating in the present invention is concentrated, and it is small that heating cools down fast heat affected area soon, to being melted between unlike material Have the advantages that other thermals source are incomparable.

（2）The present invention has good corrosion resistance, and salt spray resistance does not bubble up to 2500 hours paint films, do not get rusty after testing. Also there is adhesive force very high, adhesive force is more than 12MPa.

（3）Due to the glass flake containing pigment volume concentration (PVC) higher in film, the alternately stacked arrangement in film is formed " labyrinth " effect, thus film has excellent shielding and permeability resistance, corrosion-resistant medium osmosis corrosion.

Specific embodiment

Embodiment 1：

The first component is 10 with the mass ratio of component B：（1-1.2）；

Comprise the following steps that：

The first component is 10 with the mass ratio of component B：1.1；

Glass flake is the glass flake being surface-treated by silane coupler, and granularity is 200-300 mesh.

Step（5）The pigment of component A and the pigment of B component are phosphorus zinc white, epoxy iron red shop, titanium dioxide, trbasic zinc phosphate, N330 One or more in carbon black.

Step（5）The filler of component A and the filler of B component are the mixture of 1000-1250 mesh talcum powder and calcium carbonate, Talcum powder is 4 with the mass ratio of calcium carbonate:3.

Auxiliary agent is pigment affinity groups polymer copolymerization body dispersant, 606 defoamers, anti-sagging agent and modified urea solution stream Become the mixture of agent, pigment affinity groups polymer copolymerization body dispersant：606 defoamers：Anti-sagging agent：Modified urea solution rheology The mass ratio of agent is 0.2:0.4:0.3:0.6.

Pigment affinity groups polymer copolymerization body dispersant be XH-9001 aqueous dispersions, SP-712 aqueous dispersions, One or more in DP490 aqueous dispersions；Anti-sagging agent is NUVIS BEZ 75, byk410, the one kind or several in AT720 Kind；Modified urea solution rheological agent is DeuRheo201P, one or more in DeuRheo 202P, DeuRheo 211F.

Diluent is made up of the raw material of following weight portion：5 parts of dimethylbenzene, 4 parts of n-butanol, 1 part of propylene glycol methyl ether acetate； The solvent is made up of the raw material of following weight portion：7 parts of dimethylbenzene, 3 parts of butanol；The anti-settling agent is polyamide wax anti-settling agent 6900。

Embodiment 2：

（1）Prepare the Fe-Ni Alloy Powder of laser melting coating：The Fe-Ni Alloy Powder is made up of the raw material of following weight portion：Fe 48g, Ni 14.8g, Cr 14.8g, W 3.5g, Mo 5.2g, B 2.0g, Si 5.0g, Co0.5g and Al 2.0g, raw material are chosen The metal dust of respective element；

（2）Laser melting coating：Using CO₂Laser carries out Laser Cladding Treatment, light beam under argon gas guard mode to blade base The mm of a diameter of Φ 2, laser power is 3 kW, and sweep speed is 2 mm/s, and pressure is coaxially blown into laser beam for 0.40MPa Argon gas is protected, and to prevent melt oxidation, the surface after laser melting coating is polished flat with sand paper then；

First component is made up of the raw material of following percentage by weight：Bisphenol A type epoxy resin 32g, glass flake 4g, the g of pigment 13, The g of filler 4, the g of auxiliary agent 1.3, the g of diluent 2；

Component B is made up of the raw material of following percentage by weight：The g of polyamide curing agent 35, the g of pigment 13, the g of filler 4, anti-settling agent 0.7 g, the g of solvent 40；

First component is 10 with the mass ratio of component B：1；

（4）The preparation of the first component of modified 505 epoxy resin：Bisphenol A type epoxy resin, auxiliary agent and diluent are put into dispersion machine In be stirred, mixing time is 20min, and mixing speed is 90r/min, is subsequently adding pigment and filler, stirs 15 min, is stirred Speed is mixed for 110r/min, the mixture after stirring is transferred in sand mill and is ground, be ground to fineness≤60 μm, will ground Mixture after mill is transferred in dispersion machine, is added glass flake and is stirred 20min, is eventually adding diluent to gained first group Part viscosity be with apply -4 glasss of viscosity meters be 50s；

Glass flake is the glass flake being surface-treated by silane coupler, and granularity is 200 mesh.

Step（5）The pigment of component A and the pigment of B component are phosphorus zinc white.

Step（5）The filler of component A and the filler of B component are the mixture of calcium carbonate and 1000 mesh talcum powder, talcum Powder is 4 with the mass ratio of calcium carbonate:3.

Pigment affinity groups polymer copolymerization body dispersant is XH-9001 aqueous dispersions；Anti-sagging agent is NUVIS BEZ 75；Modified urea solution rheological agent is DeuRheo201P.

Embodiment 3：

（1）Prepare the Fe-Ni Alloy Powder of laser melting coating：The Fe-Ni Alloy Powder is made up of the raw material of following weight portion：Fe 48.1g, Ni 14.85g, Cr 14.85g, W 3.6g, Mo 5.25g, B 2.1g, Si 5.1g, Co0.6g and Al 2.1g, raw material Choose the metal dust of respective element；

（2）Laser melting coating：Using CO₂Laser carries out Laser Cladding Treatment, light beam under argon gas guard mode to blade base A diameter of Φ 2.2mm, laser power is 3.1kW, and sweep speed is 2.3 mm/s, and pressure is coaxially blown into laser beam is 0.60MPa argon gas is protected, and to prevent melt oxidation, the surface after laser melting coating is polished flat with sand paper then；

First component is made up of the raw material of following percentage by weight：Bisphenol A type epoxy resin 34g, glass flake 4.4g, pigment 13.4 G, the g of filler 4.4, the g of auxiliary agent 1.4, the g of diluent 2.2；

Component B is made up of the raw material of following percentage by weight：It is the g of polyamide curing agent 36, the g of pigment 13.4, the g of filler 4.4, anti- The heavy g of agent 0.75, the g of solvent 42；

First component is 10 with the mass ratio of component B：1.02；

（4）The preparation of the first component of modified 505 epoxy resin：Bisphenol A type epoxy resin, auxiliary agent and diluent are put into dispersion machine In be stirred, mixing time is 21min, and mixing speed is 91r/min, is subsequently adding pigment and filler, stirs 16 min, is stirred Speed is mixed for 111r/min, the mixture after stirring is transferred in sand mill and is ground, be ground to fineness≤60 μm, will ground Mixture after mill is transferred in dispersion machine, is added glass flake and is stirred 22 min, is eventually adding diluent to gained first The viscosity of component be with apply -4 glasss of viscosity meters be 51s；

Glass flake is the glass flake being surface-treated by silane coupler, and granularity is 210 mesh.

Step（5）The pigment of component A and the pigment of B component are epoxy iron red shop.

Step（5）The filler of component A and the filler of B component are the mixture of calcium carbonate and 1025 mesh talcum powder, talcum Powder is 4 with the mass ratio of calcium carbonate:3.

Pigment affinity groups polymer copolymerization body dispersant is SP-712 aqueous dispersions；Anti-sagging agent is byk410；Change Property urea solution rheological agent be DeuRheo 202P.

Other are with embodiment 2.

Embodiment 4：

（1）Prepare the Fe-Ni Alloy Powder of laser melting coating：The Fe-Ni Alloy Powder is made up of the raw material of following weight portion：Fe 48.2g, Ni 14.9g, Cr 14.9g, W 3.7g, Mo 5.3g, B 2.2g, Si 5.2g, Co0.7g and Al 2.2g, raw material choosing Take the metal dust of respective element；

（2）Laser melting coating：Using CO₂Laser carries out Laser Cladding Treatment, light beam under argon gas guard mode to blade base A diameter of Φ 2.4mm, laser power is 3.2kW, and sweep speed is 2.6mm/s, and pressure is coaxially blown into laser beam is 0.80MPa argon gas is protected, and to prevent melt oxidation, the surface after laser melting coating is polished flat with sand paper then；

First component is made up of the raw material of following percentage by weight：Bisphenol A type epoxy resin 35g, glass flake 4.8g, pigment 13.7 G, the g of filler 4.8, auxiliary agent 1.5g, the g of diluent 2.4；

Component B is made up of the raw material of following percentage by weight：It is the g of polyamide curing agent 38, the g of pigment 13.7, the g of filler 4.8, anti- The heavy g of agent 0.8, the g of solvent 44；

First component is 10 with the mass ratio of component B：1.04；

（4）The preparation of the first component of modified 505 epoxy resin：Bisphenol A type epoxy resin, auxiliary agent and diluent are put into dispersion machine In be stirred, mixing time is 22min, and mixing speed is 92r/min, is subsequently adding pigment and filler, stirs 17 min, is stirred Speed is mixed for 112r/min, the mixture after stirring is transferred in sand mill and is ground, be ground to fineness≤60 μm, will ground Mixture after mill is transferred in dispersion machine, is added glass flake and is stirred 24 min, is eventually adding diluent to gained first The viscosity of component be with apply -4 glasss of viscosity meters be 52s；

Glass flake is the glass flake being surface-treated by silane coupler, and granularity is 220 mesh.

Step（5）The pigment of component A and the pigment of B component are titanium dioxide.

Step（5）The filler of component A and the filler of B component are the mixture of calcium carbonate and 1050 mesh talcum powder, talcum Powder is 4 with the mass ratio of calcium carbonate:3.

Pigment affinity groups polymer copolymerization body dispersant is DP490 aqueous dispersions；Anti-sagging agent is AT720；It is modified Urea solution rheological agent is DeuRheo 211F.

Other are with embodiment 2.

Embodiment 5：

（1）Prepare the Fe-Ni Alloy Powder of laser melting coating：The Fe-Ni Alloy Powder is made up of the raw material of following weight portion：Fe 48.3g, Ni 14.95g, Cr 14.95g, W 3.8g, Mo 5.35g, B 2.3g, Si 5.3g, Co0.8g and Al 2.3g, raw material Choose the metal dust of respective element；

（2）Laser melting coating：Using CO₂Laser carries out Laser Cladding Treatment, light beam under argon gas guard mode to blade base A diameter of Φ 2.6mm, laser power is 3.3kW, and sweep speed is 2.9mm/s, and pressure is coaxially blown into laser beam is 1.0MPa argon gas is protected, and to prevent melt oxidation, the surface after laser melting coating is polished flat with sand paper then；

First component is made up of the raw material of following percentage by weight：Bisphenol A type epoxy resin 36g, glass flake 5g, the g of pigment 14, The g of filler 5, auxiliary agent 1.6g, the g of diluent 2.6；

Component B is made up of the raw material of following percentage by weight：The g of polyamide curing agent 40, the g of pigment 14, the g of filler 5, anti-settling agent 0.85 g, the g of solvent 46；

First component is 10 with the mass ratio of component B：1.06；

（4）The preparation of the first component of modified 505 epoxy resin：Bisphenol A type epoxy resin, auxiliary agent and diluent are put into dispersion machine In be stirred, mixing time is 23min, and mixing speed is 93r/min, is subsequently adding pigment and filler, stirs 18 min, is stirred Speed is mixed for 113r/min, the mixture after stirring is transferred in sand mill and is ground, be ground to fineness≤60 μm, will ground Mixture after mill is transferred in dispersion machine, is added glass flake and is stirred 26 min, is eventually adding diluent to gained first The viscosity of component be with apply -4 glasss of viscosity meters be 53s；

Glass flake is the glass flake being surface-treated by silane coupler, and granularity is 230 mesh.

Step（5）The pigment of component A and the pigment of B component are trbasic zinc phosphate.

Step（5）The filler of component A and the filler of B component are the mixture of calcium carbonate and 1075 mesh talcum powder, talcum Powder is 4 with the mass ratio of calcium carbonate:3.

Pigment affinity groups polymer copolymerization body dispersant is XH-9001 aqueous dispersions and SP-712 aqueous dispersions； Anti-sagging agent is NUVIS BEZ 75 and byk410；Modified urea solution rheological agent is DeuRheo201P and DeuRheo 202P.

Other are with embodiment 2.

Embodiment 6：

（1）Prepare the Fe-Ni Alloy Powder of laser melting coating：The Fe-Ni Alloy Powder is made up of the raw material of following weight portion：Fe 48.4g, Ni 15g, Cr 15g, W 3.9g, Mo 5.4g, B 2.4g, Si 5.4g, Co0.9g and Al 2.4g, raw material choose phase Answer the metal dust of element；

（2）Laser melting coating：Using CO₂Laser carries out Laser Cladding Treatment, light beam under argon gas guard mode to blade base A diameter of Φ 2.8mm, laser power is 3.4kW, and sweep speed is 3mm/s, and pressure is coaxially blown into laser beam for 1.5MPa Argon gas is protected, and to prevent melt oxidation, the surface after laser melting coating is polished flat with sand paper then；

First component is made up of the raw material of following percentage by weight：Bisphenol A type epoxy resin 38g, glass flake 5.4g, pigment 14.4 G, the g of filler 5.4, auxiliary agent 1.7g, the g of diluent 2.8；

Component B is made up of the raw material of following percentage by weight：It is the g of polyamide curing agent 42, the g of pigment 14.4, the g of filler 5.4, anti- The heavy g of agent 0.9, the g of solvent 48；

First component is 10 with the mass ratio of component B：1.08；

（4）The preparation of the first component of modified 505 epoxy resin：Bisphenol A type epoxy resin, auxiliary agent and diluent are put into dispersion machine In be stirred, mixing time is 24min, and mixing speed is 94r/min, is subsequently adding pigment and filler, stirs 19 min, is stirred Speed is mixed for 114r/min, the mixture after stirring is transferred in sand mill and is ground, be ground to fineness≤60 μm, will ground Mixture after mill is transferred in dispersion machine, is added glass flake and is stirred 28 min, is eventually adding diluent to gained first The viscosity of component be with apply -4 glasss of viscosity meters be 54s；

Glass flake is the glass flake being surface-treated by silane coupler, and granularity is 240 mesh.

Step（5）The pigment of component A and the pigment of B component are N330 carbon blacks.

Step（5）The filler of component A and the filler of B component are the mixture of calcium carbonate and 1100 mesh talcum powder, talcum Powder is 4 with the mass ratio of calcium carbonate:3.

Pigment affinity groups polymer copolymerization body dispersant is XH-9001 aqueous dispersions and DP490 aqueous dispersions；It is anti- Sagging agent is NUVIS BEZ 75 and AT720；Modified urea solution rheological agent is DeuRheo201P and DeuRheo 211F.

Other are with embodiment 2.

Embodiment 7：

（1）Prepare the Fe-Ni Alloy Powder of laser melting coating：The Fe-Ni Alloy Powder is made up of the raw material of following weight portion：Fe 48.5g, Ni 15.05g, Cr 15.05g, W 4g, Mo 5.45g, B 2.5g, Si 5.5g, Co1.0g and Al 2.5g, raw material choosing Take the metal dust of respective element；

（2）Laser melting coating：Using CO₂Laser carries out Laser Cladding Treatment, light beam under argon gas guard mode to blade base A diameter of Φ 3mm, laser power is 3.5kW, and sweep speed is 3.2mm/s, and pressure is coaxially blown into laser beam for 2MPa argons Gas shielded, to prevent melt oxidation, then polishes flat the surface after laser melting coating with sand paper；

First component is made up of the raw material of following percentage by weight：Bisphenol A type epoxy resin 40g, glass flake 5.7g, pigment 14.7 G, the g of filler 5.7, auxiliary agent 1.8g, the g of diluent 3；

Component B is made up of the raw material of following percentage by weight：It is the g of polyamide curing agent 43, the g of pigment 14.7, the g of filler 5.7, anti- The heavy g of agent 0.95, the g of solvent 50；

First component is 10 with the mass ratio of component B：1.1；

（4）The preparation of the first component of modified 505 epoxy resin：Bisphenol A type epoxy resin, auxiliary agent and diluent are put into dispersion machine In be stirred, mixing time is 25min, and mixing speed is 95r/min, is subsequently adding pigment and filler, stirs 20 min, is stirred Speed is mixed for 115r/min, the mixture after stirring is transferred in sand mill and is ground, be ground to fineness≤60 μm, will ground Mixture after mill is transferred in dispersion machine, is added glass flake and is stirred 30 min, is eventually adding diluent to gained first The viscosity of component be with apply -4 glasss of viscosity meters be 55s；

Glass flake is the glass flake being surface-treated by silane coupler, and granularity is 250 mesh.

Step（5）The pigment of component A and the pigment of B component are phosphorus zinc white and epoxy iron red shop.

Step（5）The filler of component A and the filler of B component are the mixture of calcium carbonate and 1125 mesh talcum powder, talcum Powder is 4 with the mass ratio of calcium carbonate:3.

Pigment affinity groups polymer copolymerization body dispersant is SP-712 aqueous dispersions and DP490 aqueous dispersions；It is anti- Sagging agent is byk410 and AT720；Modified urea solution rheological agent is DeuRheo 202P and DeuRheo 211F.

Other are with embodiment 2.

Embodiment 8：

（1）Prepare the Fe-Ni Alloy Powder of laser melting coating：The Fe-Ni Alloy Powder is made up of the raw material of following weight portion：Fe 48.6g, Ni 15.1g, Cr 15.1g, W 4.1g, Mo 5.5g, B 2.6g, Si 5.6g, Co1.1g and Al 2.6g, raw material choosing Take the metal dust of respective element；

（2）Laser melting coating：Using CO₂Laser carries out Laser Cladding Treatment, light beam under argon gas guard mode to blade base A diameter of Φ 3.2mm, laser power is 3.6kW, and sweep speed is 3.5mm/s, and pressure is coaxially blown into laser beam is 2.5MPa argon gas is protected, and to prevent melt oxidation, the surface after laser melting coating is polished flat with sand paper then；

First component is made up of the raw material of following percentage by weight：Bisphenol A type epoxy resin 41g, glass flake 6g, the g of pigment 15, The g of filler 6, auxiliary agent 1.9g, the g of diluent 3.2；

Component B is made up of the raw material of following percentage by weight：The g of polyamide curing agent 44, the g of pigment 15, the g of filler 6, anti-settling agent 1 g, the g of solvent 52；

First component is 10 with the mass ratio of component B：1.12；

（4）The preparation of the first component of modified 505 epoxy resin：Bisphenol A type epoxy resin, auxiliary agent and diluent are put into dispersion machine In be stirred, mixing time is 26min, and mixing speed is 96r/min, is subsequently adding pigment and filler, stirs 21 min, is stirred Speed is mixed for 116r/min, the mixture after stirring is transferred in sand mill and is ground, be ground to fineness≤60 μm, will ground Mixture after mill is transferred in dispersion machine, is added glass flake and is stirred 32 min, is eventually adding diluent to gained first The viscosity of component be with apply -4 glasss of viscosity meters be 56s；

Glass flake is the glass flake being surface-treated by silane coupler, and granularity is 260 mesh.

Step（5）The pigment of component A and the pigment of B component are phosphorus zinc white and titanium dioxide.

Step（5）The filler of component A and the filler of B component are the mixture of calcium carbonate and 1150 mesh talcum powder, talcum Powder is 4 with the mass ratio of calcium carbonate:3.

Pigment affinity groups polymer copolymerization body dispersant be XH-9001 aqueous dispersions, SP-712 aqueous dispersions and DP490 aqueous dispersions；Anti-sagging agent is NUVIS BEZ 75, byk410 and AT720；Modified urea solution rheological agent is DeuRheo201P, DeuRheo 202P and DeuRheo 211F.

Other are with embodiment 2.

Embodiment 9：

（1）Prepare the Fe-Ni Alloy Powder of laser melting coating：The Fe-Ni Alloy Powder is made up of the raw material of following weight portion：Fe 48.7g, Ni 15.12g, Cr 15.12g, W 4.2g, Mo 5.55g, B 2.7g, Si 5.7g, Co1.2g and Al 2.7g, raw material Choose the metal dust of respective element；

（2）Laser melting coating：Using CO₂Laser carries out Laser Cladding Treatment, light beam under argon gas guard mode to blade base A diameter of Φ 2mm, laser power is 3.7kW, and sweep speed is 3.8mm/s, and pressure is coaxially blown into laser beam for 3MPa argons Gas shielded, to prevent melt oxidation, then polishes flat the surface after laser melting coating with sand paper；

First component is made up of the raw material of following percentage by weight：Bisphenol A type epoxy resin 42g, glass flake 6.2g, pigment 15.5 G, the g of filler 6.2, auxiliary agent 2.0g, the g of diluent 3.4；

Component B is made up of the raw material of following percentage by weight：It is the g of polyamide curing agent 45, the g of pigment 15.5, the g of filler 6.2, anti- The heavy g of agent 1.05, the g of solvent 54；

First component is 10 with the mass ratio of component B：1.14；

（4）The preparation of the first component of modified 505 epoxy resin：Bisphenol A type epoxy resin, auxiliary agent and diluent are put into dispersion machine In be stirred, mixing time is 27min, and mixing speed is 97r/min, is subsequently adding pigment and filler, stirs 22 min, is stirred Speed is mixed for 117r/min, the mixture after stirring is transferred in sand mill and is ground, be ground to fineness≤60 μm, will ground Mixture after mill is transferred in dispersion machine, is added glass flake and is stirred 34 min, is eventually adding diluent to gained first The viscosity of component be with apply -4 glasss of viscosity meters be 57s；

Glass flake is the glass flake being surface-treated by silane coupler, and granularity is 270 mesh.

Step（5）The pigment of component A and the pigment of B component are phosphorus zinc white and trbasic zinc phosphate.

Step（5）The filler of component A and the filler of B component are the mixture of calcium carbonate and 1175 mesh talcum powder, talcum Powder is 4 with the mass ratio of calcium carbonate:3.

Pigment affinity groups polymer copolymerization body dispersant is XH-9001 aqueous dispersions；Anti-sagging agent is NUVIS BEZ 75；Modified urea solution rheological agent is DeuRheo 202P.

Other are with embodiment 2.

Embodiment 10：

（1）Prepare the Fe-Ni Alloy Powder of laser melting coating：The Fe-Ni Alloy Powder is made up of the raw material of following weight portion：Fe 48.8g, Ni 15.15g, Cr 15.15g, W 4.3g, Mo 5.6g, B 2.8g, Si 5.8g, Co1.3g and Al 2.8g, raw material Choose the metal dust of respective element；

（2）Laser melting coating：Using CO₂Laser carries out Laser Cladding Treatment, light beam under argon gas guard mode to blade base A diameter of Φ 3.6mm, laser power is 3.8kW, and sweep speed is 4mm/s, and pressure is coaxially blown into laser beam for 3.5MPa Argon gas is protected, and to prevent melt oxidation, the surface after laser melting coating is polished flat with sand paper then；

First component is made up of the raw material of following percentage by weight：Bisphenol A type epoxy resin 43g, glass flake 6.5g, pigment 16 G, the g of filler 6.5, auxiliary agent 2.1g, the g of diluent 3.6；

Component B is made up of the raw material of following percentage by weight：It is the g of polyamide curing agent 46, the g of pigment 16, the g of filler 6.5, anti-settling The g of agent 1.1, solvent 56g；

First component is 10 with the mass ratio of component B：1.16；

（4）The preparation of the first component of modified 505 epoxy resin：Bisphenol A type epoxy resin, auxiliary agent and diluent are put into dispersion machine In be stirred, mixing time is 28min, and mixing speed is 98r/min, is subsequently adding pigment and filler, stirs 23 min, is stirred Speed is mixed for 118r/min, the mixture after stirring is transferred in sand mill and is ground, be ground to fineness≤60 μm, will ground Mixture after mill is transferred in dispersion machine, is added glass flake and is stirred 36 min, is eventually adding diluent to gained first The viscosity of component be with apply -4 glasss of viscosity meters be 58s；

Glass flake is the glass flake being surface-treated by silane coupler, and granularity is 280 mesh.

Step（5）The pigment of component A and the pigment of B component are phosphorus zinc white and N330 carbon blacks.

Step（5）The filler of component A and the filler of B component are the mixture of calcium carbonate and 1200 mesh talcum powder, talcum Powder is 4 with the mass ratio of calcium carbonate:3.

Pigment affinity groups polymer copolymerization body dispersant is XH-9001 aqueous dispersions；Anti-sagging agent is byk410；Change Property urea solution rheological agent be DeuRheo201P.

Other are with embodiment 2.

Embodiment 11：

（1）Prepare the Fe-Ni Alloy Powder of laser melting coating：The Fe-Ni Alloy Powder is made up of the raw material of following weight portion：Fe 48.9g, Ni 15.18g, Cr 15.18g, W 4.4g, Mo 5.7g, B 2.9g, Si 5.9g, Co1.4g and Al 2.9g, raw material Choose the metal dust of respective element；

（2）Laser melting coating：Using CO₂Laser carries out Laser Cladding Treatment, light beam under argon gas guard mode to blade base A diameter of Φ 3.8mm, laser power is 3.9kW, and sweep speed is 4.5mm/s, and pressure is coaxially blown into laser beam for 4MPa Argon gas is protected, and to prevent melt oxidation, the surface after laser melting coating is polished flat with sand paper then；

First component is made up of the raw material of following percentage by weight：Bisphenol A type epoxy resin 44g, glass flake 6.8g, pigment 16.5 G, the g of filler 6.8, auxiliary agent 2.2g, the g of diluent 3.8；

Component B is made up of the raw material of following percentage by weight：It is the g of polyamide curing agent 48, the g of pigment 16.5, the g of filler 6.8, anti- The heavy g of agent 1.15, solvent 58g；

First component is 10 with the mass ratio of component B：1.18；

（4）The preparation of the first component of modified 505 epoxy resin：Bisphenol A type epoxy resin, auxiliary agent and diluent are put into dispersion machine In be stirred, mixing time is 29min, and mixing speed is 99r/min, is subsequently adding pigment and filler, stirs 24 min, is stirred Speed is mixed for 119r/min, the mixture after stirring is transferred in sand mill and is ground, be ground to fineness≤60 μm, will ground Mixture after mill is transferred in dispersion machine, is added glass flake and is stirred 38 min, is eventually adding diluent to gained first The viscosity of component be with apply -4 glasss of viscosity meters be 59s；

Glass flake is the glass flake being surface-treated by silane coupler, and granularity is 290 mesh.

Step（5）The pigment of component A and the pigment of B component are epoxy iron red shop and titanium dioxide.

Step（5）The filler of component A and the filler of B component are the mixture of calcium carbonate and 1225 mesh talcum powder, talcum Powder is 4 with the mass ratio of calcium carbonate:3.

Pigment affinity groups polymer copolymerization body dispersant is SP-712 aqueous dispersions；Anti-sagging agent is NUVIS BEZ 75；Modified urea solution rheological agent is DeuRheo201P.

Other are with embodiment 2.

Embodiment 12：

（1）Prepare the Fe-Ni Alloy Powder of laser melting coating：The Fe-Ni Alloy Powder is made up of the raw material of following weight portion：Fe 49g, Ni 15.2g, Cr 15.2g, W 4.5g, Mo 5.8g, B 3.0g, Si 6.0g, Co1.5g and Al 3.0g, raw material are chosen The metal dust of respective element；

（2）Laser melting coating：Using CO₂Laser carries out Laser Cladding Treatment, light beam under argon gas guard mode to blade base A diameter of Φ 4.0mm, laser power is 4kW, and sweep speed is 5mm/s, and pressure is coaxially blown into laser beam for 5MPa argon gas Protection, to prevent melt oxidation, then polishes flat the surface after laser melting coating with sand paper；

First component is made up of the raw material of following percentage by weight：Bisphenol A type epoxy resin 45g, glass flake 7g, the g of pigment 17, The g of filler 7, auxiliary agent 1.35g, diluent 4g；

Component B is made up of the raw material of following percentage by weight：The g of polyamide curing agent 50, the g of pigment 17, the g of filler 7, anti-settling agent 1.2 g, solvent 60g；

First component is 10 with the mass ratio of component B：1.2；

（4）The preparation of the first component of modified 505 epoxy resin：Bisphenol A type epoxy resin, auxiliary agent and diluent are put into dispersion machine In be stirred, mixing time is 30min, and mixing speed is 100r/min, is subsequently adding pigment and filler, stirs 25 min, Mixing speed is 120r/min, the mixture after stirring is transferred in sand mill and is ground, and is ground to fineness≤60 μm, will Mixture after grinding is transferred in dispersion machine, is added glass flake and is stirred 40 min, is eventually adding diluent to gained The viscosity of first component be with apply -4 glasss of viscosity meters be 60s；

Glass flake is the glass flake being surface-treated by silane coupler, and granularity is 300 mesh.

Step（5）The pigment of component A and the pigment of B component are epoxy iron red shop and trbasic zinc phosphate.

Step（5）The filler of component A and the filler of B component are the mixture of calcium carbonate and 1250 mesh talcum powder, talcum Powder is 4 with the mass ratio of calcium carbonate:3.

Pigment affinity groups polymer copolymerization body dispersant is XH-9001 aqueous dispersions；Anti-sagging agent is byk410；Change Property urea solution rheological agent be DeuRheo 211F.

Other are with embodiment 2.

Embodiment 13:

Pigment is epoxy iron red shop and N330 carbon blacks.Other are with embodiment 12.

Embodiment 14:

Pigment is titanium dioxide and trbasic zinc phosphate.Other are with embodiment 12.

Embodiment 15:

Pigment is titanium dioxide and N330 carbon blacks.Other are with embodiment 12.

Embodiment 16:

Pigment is trbasic zinc phosphate and N330 carbon blacks.Other are with embodiment 12.

Embodiment 17:

Pigment is phosphorus zinc white, epoxy iron red shop and titanium dioxide.Other are with embodiment 12.

Embodiment 18:

Pigment is phosphorus zinc white, epoxy iron red shop and trbasic zinc phosphate.Other are with embodiment 12.

Embodiment 19:

Pigment is phosphorus zinc white, epoxy iron red shop and N330 carbon blacks.Other are with embodiment 12.

Embodiment 20:

Pigment is phosphorus zinc white, titanium dioxide and trbasic zinc phosphate.Other are with embodiment 12.

Embodiment 21:

Pigment is phosphorus zinc white, titanium dioxide and N330 carbon blacks.Other are with embodiment 12.

Embodiment 22:

Pigment is phosphorus zinc white, trbasic zinc phosphate and N330 carbon blacks.Other are with embodiment 12.

Embodiment 23:

Pigment is epoxy iron red shop, titanium dioxide and trbasic zinc phosphate.Other are with embodiment 12.

Embodiment 24:

Pigment is epoxy iron red shop, titanium dioxide and N330 carbon blacks.Other are with embodiment 12.

Embodiment 25:

Pigment is epoxy iron red shop, trbasic zinc phosphate and N330 carbon blacks.Other are with embodiment 12.

Embodiment 26:

Pigment is titanium dioxide, trbasic zinc phosphate and N330 carbon blacks.Other are with embodiment 12.

Embodiment 27:

Pigment is phosphorus zinc white, epoxy iron red shop, titanium dioxide and trbasic zinc phosphate.Other are with embodiment 12.

Embodiment 28:

Pigment is phosphorus zinc white, epoxy iron red shop, titanium dioxide and N330 carbon blacks.Other are with embodiment 12.

Embodiment 29:

Pigment is phosphorus zinc white, titanium dioxide, trbasic zinc phosphate and N330 carbon blacks.Other are with embodiment 12.

Embodiment 30:

Pigment is phosphorus zinc white, epoxy iron red shop, trbasic zinc phosphate and N330 carbon blacks.Other are with embodiment 12.

Embodiment 31:

Pigment is epoxy iron red shop, titanium dioxide, trbasic zinc phosphate and N330 carbon blacks.Other are with embodiment 12.

Embodiment 32:

Pigment is phosphorus zinc white, epoxy iron red shop, titanium dioxide, trbasic zinc phosphate and N330 carbon blacks.Other are with embodiment 12.

Embodiment 33：

（1）Prepare the Fe-Ni Alloy Powder of laser melting coating：The Fe-Ni Alloy Powder is made up of the raw material of following weight portion：Fe The g of 49g, Ni 15 g, Cr 15 g, W 4 g, Mo 5.5 g, B 2.5 g, Si 5.5 g, Co1 g and Al 2.5, raw material is chosen The metal dust of respective element；

First component is prepared from the following raw materials in parts by weight：The g of bisphenol A type epoxy resin 40, the g of glass flake 5, the g of pigment 15, The g of filler 5, the g of auxiliary agent 2, the g of diluent 3；

Component B is prepared from the following raw materials in parts by weight：The g of polyamide curing agent 40, the g of pigment 15, the g of filler 5, anti-settling agent 0.8 g, the g of solvent 50；

First component is 10 with the mass ratio of component B：1.1；

Other are with embodiment 12.

Embodiment 34：

（1）Prepare the Fe-Ni Alloy Powder of laser melting coating：The Fe-Ni Alloy Powder is made up of the raw material of following weight portion：Fe The g of 49 g, Ni 15.2g, Cr 15.2 g, W 4.5 g, Mo 5.8 g, B 3.0 g, Si 6.0 g, Co1.5 g and Al 3.0, Raw material chooses the metal dust of respective element；

（2）Laser melting coating：Using CO₂Laser carries out Laser Cladding Treatment, light beam under argon gas guard mode to blade base The mm of a diameter of Φ 4, laser power is 4kW, and sweep speed is 5 mm/s, and pressure is coaxially blown into laser beam for 5MPa argon gas Protection, to prevent melt oxidation, then polishes flat the surface after laser melting coating with sand paper；

First component is prepared from the following raw materials in parts by weight：The g of bisphenol A type epoxy resin 43, the g of glass flake 7, the g of pigment 17, The g of filler 7, the g of auxiliary agent 2.2, the g of diluent 4；

Component B is prepared from the following raw materials in parts by weight：The g of polyamide curing agent 50, the g of pigment 17, the g of filler 7, anti-settling agent 1.2 g, the g of solvent 60；

First component is 10 with the mass ratio of component B：1.2；

（4）The preparation of the first component of modified 505 epoxy resin：Bisphenol A type epoxy resin, auxiliary agent and diluent are put into dispersion machine In be stirred, mixing time is 30min, and mixing speed is 100r/min, is subsequently adding pigment and filler, stirs 25 min, Mixing speed 120r/min, the mixture after stirring is transferred in sand mill and is ground, and is ground to fineness≤60 μm, will be ground Mixture after mill is transferred in dispersion machine, is added glass flake and is stirred 40 min, is eventually adding diluent to gained first The viscosity of component be with apply -4 glasss of viscosity meters be 60s；

Other are with embodiment 12.

Embodiment 35：

（1）Prepare the Fe-Ni Alloy Powder of laser melting coating：The Fe-Ni Alloy Powder is made up of the raw material of following weight portion：Fe The g of 48g, Ni 14.8g, Cr 14.8 g, W 3.5 g, Mo 5.2 g, B 2.0 g, Si 5.0 g, Co0.5 g and Al 2.0, it is former Material chooses the metal dust of respective element；

（2）Laser melting coating：Using CO₂Laser carries out Laser Cladding Treatment, light beam under argon gas guard mode to blade base The mm of a diameter of Φ 2, laser power is 3kW, and sweep speed is 2 mm/s, and pressure is coaxially blown into laser beam for 0.4MPa argons Gas shielded, to prevent melt oxidation, then polishes flat the surface after laser melting coating with sand paper；

First component is prepared from the following raw materials in parts by weight：The g of bisphenol A type epoxy resin 33, the g of glass flake 4, the g of pigment 13, The g of filler 4, the g of auxiliary agent 1.3, the g of diluent 2；

Component B is prepared from the following raw materials in parts by weight：The g of polyamide curing agent 35, the g of pigment 13, the g of filler 4, anti-settling agent 0.7 g, the g of solvent 40；

First component is 10 with the mass ratio of component B：1；

（4）The preparation of the first component of modified 505 epoxy resin：Bisphenol A type epoxy resin, auxiliary agent and diluent are put into dispersion machine In be stirred, mixing time is 20min, and mixing speed is 90r/min, is subsequently adding pigment and filler, stirs 15 min, is stirred Speed 110r/min is mixed, the mixture after stirring is transferred in sand mill and is ground, be ground to fineness≤60 μm, will ground Mixture afterwards is transferred in dispersion machine, is added glass flake and is stirred 20 min, is eventually adding diluent to gained first group Part viscosity be with apply -4 glasss of viscosity meters be 50s；

Other are with embodiment 12.

Embodiment 36：

（1）Prepare the Fe-Ni Alloy Powder of laser melting coating：The Fe-Ni Alloy Powder is made up of the raw material of following weight portion：Fe The g of 49g, Ni 15g, Cr 15 g, W 4 g, Mo 5.5 g, B 2.5g, Si 5.5 g, Co1 g and Al 2.5, raw material chooses phase Answer the metal dust of element；

First component is 10 with the mass ratio of component B：1.1；

Other are with embodiment 12.

Comparative example：

（1）Prepare modified 954 epoxy resin：Modified 954 epoxy resin include first component and component B；

First component is prepared from the following raw materials in parts by weight：Epoxy silicone resin 35g, glass flake 14g, pigment 13g, filler 4g, auxiliary agent 1.3g, diluent 2g；

Component B is prepared from the following raw materials in parts by weight：Polyamide curing agent 35g, pigment 13g, filler 4g, anti-settling agent 0.7g, Solvent 40g；

First component is 10 with the mass ratio of component B：1；

（2）The preparation of first component：It is stirred during epoxy silicone resin, auxiliary agent and diluent are put into dispersion machine, during stirring Between be 20min, mixing speed is 90r/min, is subsequently adding pigment and filler, stirs 15min, and mixing speed is 110r/min, Mixture after stirring is transferred in sand mill and is ground, be ground to fineness≤60 μm, by the mixture transfer after grinding Into dispersion machine, add glass flake and stir 20 min, be eventually adding diluent to the viscosity of gained first component be with apply- 4 glasss of viscosity meters are 50s；

（3）The preparation of component B：By in each raw material addition agitator tank of component B, stir, it is then mixed by what is stirred Compound strainer filtering, you can obtain component B；

（4）First component and component B are stirred respectively, and mixing preparation uniformly obtains final product modified 954 asphalt mixtures modified by epoxy resin in mass ratio Fat, then deployed modified 954 epoxy resin are sprayed on apparatus surface to be sprayed, you can corrosion-inhibiting coating is obtained.

Step（1）The pigment of middle component A and the equal pigment of the pigment of B component are phosphorus zinc white.

Step（1）The filler of middle component A and the filler of B component are the mixture of calcium carbonate and 1000 mesh talcum powder, sliding Stone flour is 4 with the mass ratio of calcium carbonate:3.

Diluent is made up of the raw material of following weight portion：5 parts of dimethylbenzene, 4 parts of n-butanol, 1 part of propylene glycol methyl ether acetate； The solvent is made up of the raw material of following weight portion：7 parts of dimethylbenzene, 3 parts of butanol；Anti-settling agent is polyamide wax anti-settling agent 6900.

Property indices reference value of the invention is as follows：

Go as can be seen from the above table, impact resistance of the present invention and adhesion performance are excellent, alleviate colliding with for plant equipment and receive Damage situation, and antiseptic property is considerably beyond commercial like product, is a kind of preferable epoxies anticorrosive paint, is applicable to various The application application of plant equipment product.

Above-described is only the preferred embodiment of the present invention, it is noted that for a person skilled in the art, Under the premise of general idea of the present invention is not departed from, some changes and improvements can also be made, these should also be considered as of the invention Protection domain.

Claims

1. the method that composite anti-corrosive coating is prepared using laser melting and coating technique, it is characterised in that：Comprise the following steps that：

The first component is 10 with the mass ratio of component B：（1-1.2）；

2. the method that utilization laser melting and coating technique according to claim 1 prepares composite anti-corrosive coating, it is characterised in that：Tool Body step is as follows：

The first component is 10 with the mass ratio of component B：1.1；

3. the method that utilization laser melting and coating technique according to claim 1 and 2 prepares composite anti-corrosive coating, its feature exists In：The glass flake is the glass flake being surface-treated by silane coupler, and granularity is 200-300 mesh.

4. the method that utilization laser melting and coating technique according to claim 1 and 2 prepares composite anti-corrosive coating, its feature exists In：The step（5）The pigment of component A and the pigment of B component are phosphorus zinc white, epoxy iron red shop, titanium dioxide, trbasic zinc phosphate, N330 One or more in carbon black.

5. the method that utilization laser melting and coating technique according to claim 1 and 2 prepares composite anti-corrosive coating, its feature exists In：The step（5）The filler of component A and the filler of B component are the mixture of 1000-1250 mesh talcum powder and calcium carbonate, Talcum powder is 4 with the mass ratio of calcium carbonate:3.

6. the method that utilization laser melting and coating technique according to claim 1 and 2 prepares composite anti-corrosive coating, its feature exists In：The auxiliary agent is pigment affinity groups polymer copolymerization body dispersant, 606 defoamers, anti-sagging agent and modified urea solution stream Become the mixture of agent, pigment affinity groups polymer copolymerization body dispersant：606 defoamers：Anti-sagging agent：Modified urea solution rheology The mass ratio of agent is 0.2:0.4:0.3:0.6.

7. the method that utilization laser melting and coating technique according to claim 1 and 2 prepares composite anti-corrosive coating, its feature exists In：The pigment affinity groups polymer copolymerization body dispersant be XH-9001 aqueous dispersions, SP-712 aqueous dispersions, One or more in DP490 aqueous dispersions；Anti-sagging agent is NUVIS BEZ 75, byk410, the one kind or several in AT720 Kind；Modified urea solution rheological agent is DeuRheo201P, one or more in DeuRheo 202P, DeuRheo 211F.

8. the method that utilization laser melting and coating technique according to claim 1 and 2 prepares composite anti-corrosive coating, its feature exists In：The diluent is made up of the raw material of following weight portion：5 parts of dimethylbenzene, 4 parts of n-butanol, 1 part of propylene glycol methyl ether acetate； The solvent is made up of the raw material of following weight portion：7 parts of dimethylbenzene, 3 parts of butanol；The anti-settling agent is polyamide wax anti-settling agent 6900。