CN111229996A - Double-coating stainless steel and gold steel mesh and manufacturing method thereof - Google Patents
Double-coating stainless steel and gold steel mesh and manufacturing method thereof Download PDFInfo
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- CN111229996A CN111229996A CN202010156128.2A CN202010156128A CN111229996A CN 111229996 A CN111229996 A CN 111229996A CN 202010156128 A CN202010156128 A CN 202010156128A CN 111229996 A CN111229996 A CN 111229996A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F27/00—Making wire network, i.e. wire nets
- B21F27/005—Wire network per se
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/20—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wires
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
- B05D7/544—No clear coat specified the first layer is let to dry at least partially before applying the second layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F27/00—Making wire network, i.e. wire nets
- B21F27/02—Making wire network, i.e. wire nets without additional connecting elements or material at crossings, e.g. connected by knitting
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/34—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/14—Aqueous compositions
- C23F1/16—Acidic compositions
- C23F1/28—Acidic compositions for etching iron group metals
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2202/00—Metallic substrate
- B05D2202/10—Metallic substrate based on Fe
- B05D2202/15—Stainless steel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2451/00—Type of carrier, type of coating (Multilayers)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2502/00—Acrylic polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2504/00—Epoxy polymers
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Abstract
The invention discloses a double-coating stainless steel and gold steel mesh and a manufacturing method thereof. The manufacturing method can effectively improve the phenomena of bulging and falling of the surface coating film at the nodes of the gold steel mesh, and improves the corrosion resistance and the adhesiveness of the gold steel mesh, so that the obtained gold steel mesh has excellent corrosion resistance and long-acting corrosion resistance, and the service life is prolonged.
Description
Technical Field
The invention relates to the technical field of gold steel meshes, in particular to a double-coating stainless steel gold steel mesh and a manufacturing method thereof.
Background
The screen window is a product arranged on the window, can play roles of preventing burglary, dust and insects, blocking sunlight and the like, and is widely applied to the field of home decoration. The gold steel mesh screen window is one of the anti-theft screen windows, refers to an anti-theft screen window with a gold steel mesh as a screen mesh, and is a popular screen window product in the market at present. The anti-theft screen window is formed by processing the gold steel mesh, not only can play a good safety protection effect, but also has no blocking feeling, shielding feeling and depression feeling, keeps bright and natural indoors at any time, is a first choice for high-grade home furnishing, is loved by consumers, and has very wide market prospect.
When the traditional gold steel mesh is manufactured, stainless steel bare wires are woven into a mesh firstly, then the surface of the gold steel mesh is passivated, and then the surface of the passivated gold steel mesh is subjected to spray protection of electrostatic spraying, so that the manufacturing method can really play a certain protection role on the surface of the gold steel mesh, prolong the service life of the gold steel mesh, but the following defects still exist in the process of actual long-term use:
1. the stainless steel bare wires are woven into a net and then subjected to spray molding, nodes can appear at the woven positions of the two steel wires, the conventional spray molding is performed on the front surface and the back surface of the gold steel net, the phenomenon of uneven spray molding around the node positions can be generated, the coating of some places is thick, the coating of some places is thin, the thin coating of the node positions is easy to crack, swell and fall off in the long-term use process, the corrosion is easy, and the integral service life of the gold steel net is shortened;
2. according to the traditional process, stainless steel bare wires are woven into a net firstly, and then plastic spraying treatment is carried out on the net, so that the obtained gold steel net is relatively hard and relatively low in toughness, and the installation difficulty is increased in the screen window manufacturing process;
3. the conventional electrostatic spraying treatment adopts polyester resin as a main raw material, the chemical bonding force between the polyester resin and a metal matrix is very low, the long-acting adhesive force on the surface of a gold steel mesh is very poor, and local or integral coatings are easy to bulge, fall off and the like after long-term use.
Therefore, there is a need for an improvement of the existing method for manufacturing a gold steel mesh.
Disclosure of Invention
The invention aims to make up the defects of the prior art and provides a method for manufacturing a double-coating stainless steel and gold steel net.
In order to achieve the purpose, the invention adopts the following technical scheme:
a manufacturing method of a double-coating stainless steel and gold steel net is characterized by comprising the following steps:
(1) degreasing and cleaning a stainless steel wire, then soaking the stainless steel wire in an etching solution for etching for 15-30min at 30-60 ℃, taking out the stainless steel wire, cleaning the stainless steel wire with water, and drying the stainless steel wire;
(2) soaking the stainless steel wire treated in the step (1) in a passivation solution for passivation at normal temperature for 10-15min, taking out, washing with water, and drying;
(3) soaking the stainless steel wire treated in the step (2) in an ethanol solution of a silane coupling agent for modification treatment at normal temperature for 5-10min, taking out the stainless steel wire, and then carrying out heat preservation treatment at the temperature of 110-120 ℃ for 10-15 min;
(4) uniformly spraying the antirust priming paint on the stainless steel wire treated in the step (3) for 4-6 times, sending the stainless steel wire into a baking furnace to bake for 20-30s at the temperature of 190-200 ℃ after each coating, quickly taking out the stainless steel wire after baking, spraying and baking the priming paint for the second time, repeatedly spraying for 4-5 times, and finally taking out and cooling the stainless steel wire to form a paint film with the thickness of 10-20 mu m on the surface of the stainless steel wire;
(5) uniformly spraying the coating paint on the stainless steel wire treated in the step (4) for 2-3 times, sending the coated stainless steel wire into a baking furnace to bake for 15-25s at the temperature of 190-;
(6) and (5) weaving the double-coating stainless steel wire obtained in the step (5) by using a steel wire weaving machine to obtain a double-coating stainless steel gold steel net.
Further, the etching liquid is prepared from the following raw materials in parts by weight: 10-15 parts of ferric trichloride, 5-10 parts of hydrochloric acid and 1000-1500 parts of water.
Further, the passivation solution is prepared from the following raw materials in parts by weight: 10-15 parts of citric acid, 5-10 parts of hydrogen peroxide, 5-10 parts of sodium fluoride, 1-2 parts of thiourea, 1-2 parts of cerium nitrate and 1000 parts of water as well as 1500.
Further, the concentration of the ethanol solution of the silane coupling agent is 5-10 g/L.
Further, the anti-rust primer is prepared from the following raw materials in parts by weight: 20-30 parts of aliphatic polyurethane acrylate, 10-15 parts of methacrylate, 0.5-1 part of isocyanate curing agent and 0.1-0.2 part of nano titanium dioxide.
Further, the glue coating is prepared from the following raw materials in parts by weight: 40-50 parts of epoxy resin, 30-40 parts of polyester resin, 2-4 parts of epoxidized soybean oil, 1-2 parts of T105 curing agent, 1-2 parts of carbon black, 0.3-0.5 part of magnesium hydroxide, 0.2-0.4 part of nano calcium carbonate, 0.2-0.4 part of viscosity reducer and 0.1-0.2 part of methylene dinaphthalene sodium sulfide.
Further, the stainless steel wire is 304 stainless steel wire.
The double-coating stainless steel and gold steel net manufactured by the method is provided.
Compared with the traditional manufacturing method of the gold steel mesh, the method has the following advantages:
1. according to the invention, the surface of the stainless steel wire is subjected to anti-corrosion treatment, and then the stainless steel wire subjected to anti-corrosion treatment is woven into the gold steel mesh, so that the problems that the spraying of the gold steel mesh manufactured by the traditional process around the node of the woven position of two steel wires is uneven, the node position is easy to crack, and the anti-corrosion effect of the gold steel mesh is poor are effectively solved;
2. according to the invention, the stainless steel bare wires are subjected to anticorrosion treatment firstly, and then are woven into the net, so that the obtained gold steel net is high in toughness, and under the same strength, the gold steel net is softer, and the installation efficiency is greatly improved in the screen window manufacturing process;
3. the invention adopts the painting and gluing double-coating anticorrosion process, the obtained steel wire coating is very uniform, the anticorrosion effect is better, and simultaneously, the weather resistance is good, so that the obtained gold steel mesh has better anticorrosion and weather resistance effects. The problem that the stainless steel wire is rusted due to the material is better protected by coating the anti-rust primer; the surface of the stainless steel wire can be protected by adopting a gluing process, and the stainless steel wire is really protected in all directions by adopting a painting and gluing process;
4. the invention adopts a double-layer process of firstly coating primer and then coating glue on bare wires, thereby not only solving the problem of nodes, but also ensuring that the prepared gold steel mesh is higher in definition and is brighter;
5. the stainless steel golden steel mesh produced by the traditional plastic spraying process is influenced by the process and equipment, and the size of the stainless steel golden steel mesh is fixed within a certain range, while the stainless steel mesh with the coating is obtained after the stainless steel wire is subjected to surface treatment, so that a braiding machine is selected to weave the mesh, the size of the traditional plastic spraying process is not limited, the more flexibility is realized, and the size selection range is wide;
6. the invention adopts the combination of chemical etching and passivation to carry out pretreatment on the stainless steel wire, forms larger pores on the surface of the stainless steel wire through chemical etching, and then forms a passivation film on the surface of the stainless steel wire through passivation, thereby increasing the roughness of the passivation film, enabling the pores of the passivation film to become larger and deeper, and enabling the coating to better permeate into the passivation film; and a silane coupling agent is used for modifying the passive film, so that the affinity binding force between the passive film and the coating is increased, the coating is more tightly combined with the passive film after being cured, the effect of improving the adhesion of the coating on the surface of the steel wire mesh is achieved, the coating is not easy to bulge and fall off, the long-acting corrosion resistance of the gold steel mesh is improved, and the service life is prolonged.
Detailed Description
Example 1
A manufacturing method of a double-coating stainless steel and gold steel net comprises the following steps:
(1) removing oil from the stainless steel wire, cleaning, soaking in etching solution, etching at 31 deg.C for 30min, taking out, cleaning with water, and oven drying;
(2) soaking the stainless steel wire treated in the step (1) in a passivation solution for passivation at normal temperature for 10min, taking out, washing with water, and drying;
(3) soaking the stainless steel wire treated in the step (2) in an ethanol solution of a silane coupling agent for modification treatment at normal temperature for 5min, taking out the stainless steel wire, and then carrying out heat preservation treatment at 110 ℃ for 15 min;
(4) uniformly spraying the anti-rust primer on the stainless steel wire treated in the step (3) for 4 times, sending the stainless steel wire into a baking furnace to bake for 30s at 190 ℃ after each coating, quickly taking out the stainless steel wire after baking, spraying and baking the primer for the second time, repeatedly spraying for 4 times, finally taking out the stainless steel wire and cooling to form a paint film with the thickness of 10 mu m on the surface of the stainless steel wire;
(5) uniformly spraying the coating paint on the stainless steel wire treated in the step (4) for 3 times, sending the stainless steel wire into a baking furnace to bake for 25s at 190 ℃ after each coating, quickly taking out the stainless steel wire after baking, spraying and baking the coating paint for the second time, repeatedly spraying the coating paint for 3 times, finally taking out the stainless steel wire and cooling the stainless steel wire to form a coating film with the thickness of 35 mu m on the surface of the stainless steel wire, thus obtaining the double-coating stainless steel wire;
(6) and (5) weaving the double-coating stainless steel wire obtained in the step (5) by using a steel wire weaving machine to obtain a double-coating stainless steel gold steel net.
The etching liquid is prepared from the following raw materials in parts by weight: 10 parts of ferric trichloride, 5 parts of hydrochloric acid and 1000 parts of water.
The passivation solution is prepared from the following raw materials in parts by weight: 10 parts of citric acid, 5 parts of hydrogen peroxide, 5 parts of sodium fluoride, 1 part of thiourea, 1 part of cerium nitrate and 1000 parts of water.
The concentration of the ethanol solution of the silane coupling agent is 5 g/L.
The anti-rust primer is prepared from the following raw materials in parts by weight: 20 parts of aliphatic polyurethane acrylate, 10 parts of methacrylate, 0.5 part of isocyanate curing agent and 0.1 part of nano titanium dioxide.
The glue coating is prepared from the following raw materials in parts by weight: 40 parts of epoxy resin, 30 parts of polyester resin, 2 parts of epoxidized soybean oil, 1 part of T105 curing agent, 1 part of carbon black, 0.3 part of magnesium hydroxide, 0.2 part of nano calcium carbonate, 0.3 part of viscosity reducer and 0.1 part of methylene dinaphthalene sodium sulfide.
The stainless steel wire is 304 stainless steel wire.
Example 2
A manufacturing method of a double-coating stainless steel and gold steel net comprises the following steps:
(1) removing oil from the stainless steel wire, cleaning, soaking in etching solution at 30 deg.C for etching for 60min, taking out, cleaning with water, and oven drying;
(2) soaking the stainless steel wire treated in the step (1) in a passivation solution for passivation at normal temperature for 15min, taking out, washing with water, and drying;
(3) soaking the stainless steel wire treated in the step (2) in an ethanol solution of a silane coupling agent for modification treatment at normal temperature for 8min, taking out, and then carrying out heat preservation treatment at 120 ℃ for 12 min;
(4) uniformly spraying the anti-rust primer on the stainless steel wire treated in the step (3) for 5 times, sending the stainless steel wire into a baking furnace to bake for 25s at 195 ℃ after each coating, quickly taking out after baking, spraying and baking the primer for the second time, repeatedly spraying for 5 times, finally taking out and cooling to form a paint film with the thickness of 15 mu m on the surface of the stainless steel wire; (ii) a
(5) Uniformly spraying the coating paint on the stainless steel wire treated in the step (4) for 2 times, sending the stainless steel wire into a baking furnace to bake for 20s at 195 ℃ after each coating, quickly taking out the stainless steel wire after baking, spraying and baking the coating paint for the second time, repeatedly spraying for 2 times, finally taking out the stainless steel wire and cooling the stainless steel wire to form a coating film with the thickness of 40 mu m on the surface of the stainless steel wire, thus obtaining the double-coating stainless steel wire;
(6) and (5) weaving the double-coating stainless steel wire obtained in the step (5) by using a steel wire weaving machine to obtain a double-coating stainless steel gold steel net.
The etching liquid is prepared from the following raw materials in parts by weight: 10 parts of ferric trichloride, 5 parts of hydrochloric acid and 1000 parts of water.
The passivation solution is prepared from the following raw materials in parts by weight: 10 parts of citric acid, 5 parts of hydrogen peroxide, 5 parts of sodium fluoride, 1 part of thiourea, 1 part of cerium nitrate and 1000 parts of water.
The concentration of the ethanol solution of the silane coupling agent is 5 g/L.
The anti-rust primer is prepared from the following raw materials in parts by weight: 20 parts of aliphatic polyurethane acrylate, 10 parts of methacrylate, 0.5 part of isocyanate curing agent and 0.1 part of nano titanium dioxide.
The glue coating is prepared from the following raw materials in parts by weight: 40 parts of epoxy resin, 30 parts of polyester resin, 2 parts of epoxidized soybean oil, 1 part of T105 curing agent, 1 part of carbon black, 0.3 part of magnesium hydroxide, 0.2 part of nano calcium carbonate, 0.2 part of viscosity reducer and 0.1 part of methylene dinaphthalene sodium sulfide.
The stainless steel wire is 304 stainless steel wire.
Example 3
A manufacturing method of a double-coating stainless steel and gold steel net comprises the following steps:
(1) removing oil from the stainless steel wire, cleaning, soaking in etching solution at 60 deg.C for 15min, taking out, cleaning with water, and oven drying;
(2) soaking the stainless steel wire treated in the step (1) in a passivation solution for passivation at normal temperature for 15min, taking out, washing with water, and drying;
(3) soaking the stainless steel wire treated in the step (2) in an ethanol solution of a silane coupling agent for modification treatment at normal temperature for 10min, taking out the stainless steel wire, and then carrying out heat preservation treatment at 115 ℃ for 15 min;
(4) uniformly spraying the antirust primer on the stainless steel wire treated in the step (3) for 6 times, sending the stainless steel wire into a baking furnace to bake for 20s at 200 ℃ after each coating, quickly taking out the stainless steel wire after baking, spraying and baking the primer for the second time, repeatedly spraying for 6 times, finally taking out and cooling, and forming a paint film with the thickness of 20 microns on the surface of the stainless steel wire;
(5) uniformly spraying the coating paint on the stainless steel wire treated in the step (4) for 3 times, sending the stainless steel wire into a baking furnace to bake for 15s at 200 ℃ after each coating, quickly taking out the stainless steel wire after baking, spraying and baking the coating paint for the second time, repeatedly spraying the coating paint for 3 times, finally taking out the stainless steel wire and cooling the stainless steel wire to form a coating film with the thickness of 50 mu m on the surface of the stainless steel wire, thus obtaining the double-coating stainless steel wire;
(6) and (5) weaving the double-coating stainless steel wire obtained in the step (5) by using a steel wire weaving machine to obtain a double-coating stainless steel gold steel net.
The etching liquid is prepared from the following raw materials in parts by weight: 15 parts of ferric trichloride, 10 parts of hydrochloric acid and 1500 parts of water.
The passivation solution is prepared from the following raw materials in parts by weight: 15 parts of citric acid, 10 parts of hydrogen peroxide, 10 parts of sodium fluoride, 2 parts of thiourea, 2 parts of cerium nitrate and 1500 parts of water.
The concentration of the ethanol solution of the silane coupling agent is 10 g/L.
The anti-rust primer is prepared from the following raw materials in parts by weight: 20 parts of aliphatic polyurethane acrylate, 10 parts of methacrylate, 0.5 part of isocyanate curing agent and 0.1 part of nano titanium dioxide.
The glue coating is prepared from the following raw materials in parts by weight: 40 parts of epoxy resin, 30 parts of polyester resin, 2 parts of epoxidized soybean oil, 1 part of T105 curing agent, 1 part of carbon black, 0.3 part of magnesium hydroxide, 0.2 part of nano calcium carbonate, 0.2 part of viscosity reducer and 0.1 part of methylene dinaphthalene sodium sulfide.
The stainless steel wire is 304 stainless steel wire.
Comparative example 1
A manufacturing method of a 304 double-coating stainless steel and gold steel net comprises the steps of weaving stainless steel wires by a steel wire weaving machine to obtain a stainless steel net, then carrying out conventional oil removal, cleaning and passivation, spraying an anti-rust primer, baking and cooling to form a paint film with the thickness of 10 microns, then carrying out electrostatic powder spraying, baking and cooling to form a paint film with the thickness of 30 microns, and obtaining the double-coating stainless steel and gold steel net.
The anti-rust primer is prepared from the following raw materials in parts by weight: 20 parts of aliphatic polyurethane acrylate, 10 parts of methacrylate, 0.5 part of isocyanate curing agent and 0.1 part of nano titanium dioxide.
The glue coating is prepared from the following raw materials in parts by weight: 40 parts of epoxy resin, 30 parts of polyester resin, 2 parts of epoxidized soybean oil, 1 part of T105 curing agent, 1 part of carbon black, 0.3 part of magnesium hydroxide, 0.2 part of nano calcium carbonate, 0.3 part of viscosity reducer and 0.1 part of methylene dinaphthalene sodium sulfide.
The corrosion resistance test method of the manufactured sample comprises the following steps:
the prepared sample is placed in FeCl3 solution with the mass concentration of 20%, the soaking temperature is 30 ℃, the soaking time is 3h, the corrosion rate is tested, and the corrosion rate (%) = (weight before corrosion-weight after corrosion)/weight before corrosion x 100%, and meanwhile, the prepared sample is subjected to manual accelerated weather resistance (II) detection according to a GB/T1865-2009 test method.
The test results were as follows:
| item | Example 1 | Example 2 | Example 3 | Comparative example 1 |
| Etching of Percentage (%) | 0.33 | 0.28 | 0.25 | 0.51 |
| Artificial operation Acceleration Weather-proof Property of (2) （II） | Test 1000h After that, no evidence appeared Show color change and rust Equal aging phenomenon | Test 1000h After that, no evidence appeared Show color change and rust Equal aging phenomenon | Test 1000h After that, no evidence appeared Show color change and rust Equal aging phenomenon | After the test for 200h, obvious change appears at the node Aging phenomena such as color, rusting, and the like, test for 600h Then, the whole steel wire mesh appears obviously at a plurality of positions Aging phenomena such as discoloration and rusting |
According to the results of the salt spray resistance test and the manual accelerated weather resistance (II) test of the examples 1 to 3 and the comparative example, under the condition that the coating components are the same, the corrosion resistance and the manual accelerated weather resistance (II) of the stainless steel mesh processed by the process of the invention are far higher than those of the stainless steel mesh processed by the conventional method, particularly, the joints of the comparative example 1 are aged due to discoloration, rusting and the like, so that the stainless steel wire gold mesh manufactured by the process of the invention has good corrosion resistance and weather resistance.
Claims (8)
1. A manufacturing method of a double-coating stainless steel and gold steel net is characterized by comprising the following steps:
(1) degreasing and cleaning a stainless steel wire, then soaking the stainless steel wire in an etching solution for etching for 15-30min at 30-60 ℃, taking out the stainless steel wire, cleaning the stainless steel wire with water, and drying the stainless steel wire;
(2) soaking the stainless steel wire treated in the step (1) in a passivation solution for passivation at normal temperature for 10-15min, taking out, washing with water, and drying;
(3) soaking the stainless steel wire treated in the step (2) in an ethanol solution of a silane coupling agent for modification treatment at normal temperature for 5-10min, taking out the stainless steel wire, and then carrying out heat preservation treatment at the temperature of 110-120 ℃ for 10-15 min;
(4) uniformly spraying the antirust priming paint on the stainless steel wire treated in the step (3) for 4-6 times, sending the stainless steel wire into a baking furnace to bake for 20-30s at the temperature of 190-200 ℃ after each coating, quickly taking out the stainless steel wire after baking, spraying and baking the priming paint for the second time, repeatedly spraying for 4-5 times, and finally taking out and cooling the stainless steel wire to form a paint film with the thickness of 10-20 mu m on the surface of the stainless steel wire;
(5) uniformly spraying the coating paint on the stainless steel wire treated in the step (4) for 2-3 times, sending the coated stainless steel wire into a baking furnace to bake for 15-25s at the temperature of 190-;
(6) weaving the double-coating stainless steel wire obtained in the step (5) by using a steel wire weaving machine to obtain double coatings
And (4) a stainless steel and gold steel net.
2. The method for manufacturing a double-coating stainless steel mesh according to claim 1, wherein the etching solution is prepared from the following raw materials in parts by weight: 10-15 parts of ferric trichloride, 5-10 parts of hydrochloric acid and 1000-1500 parts of water.
3. The method for manufacturing a double-coated stainless steel mesh according to claim 1, wherein the passivation solution is prepared from the following raw materials in parts by weight: 10-15 parts of citric acid, 5-10 parts of hydrogen peroxide, 5-10 parts of sodium fluoride, 1-2 parts of thiourea, 1-2 parts of cerium nitrate and 1000 parts of water as well as 1500.
4. The method according to claim 1, wherein the concentration of the ethanol solution of the silane coupling agent is 5-10 g/L.
5. The method for manufacturing a double-coated stainless steel mesh according to claim 1, wherein the anti-corrosive primer is prepared from the following raw materials in parts by weight: 20-30 parts of aliphatic polyurethane acrylate, 10-15 parts of methacrylate, 0.5-1 part of isocyanate curing agent and 0.1-0.2 part of nano titanium dioxide.
6. The method for manufacturing a double-coated stainless steel mesh according to claim 1, wherein the coating is prepared from the following raw materials in parts by weight: 40-50 parts of epoxy resin, 30-40 parts of polyester resin, 2-4 parts of epoxidized soybean oil, 1-2 parts of T105 curing agent, 1-2 parts of carbon black, 0.3-0.5 part of magnesium hydroxide, 0.2-0.4 part of nano calcium carbonate, 0.2-0.4 part of viscosity reducer and 0.1-0.2 part of methylene dinaphthalene sodium sulfide.
7. The method for manufacturing a double-coated stainless steel mesh according to claim 1, wherein the method comprises the following steps: the stainless steel wire is 304 stainless steel wire.
8. A double-coated stainless steel wire mesh made by the method of any one of claims 1-7.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112590112A (en) * | 2020-12-12 | 2021-04-02 | 安徽万航轨道交通装备有限公司 | Preparation method of new energy locomotive high-pressure tank cover |
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