CN115627468A - Preparation method of stainless steel wire mesh - Google Patents
Preparation method of stainless steel wire mesh Download PDFInfo
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- CN115627468A CN115627468A CN202211262003.3A CN202211262003A CN115627468A CN 115627468 A CN115627468 A CN 115627468A CN 202211262003 A CN202211262003 A CN 202211262003A CN 115627468 A CN115627468 A CN 115627468A
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- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 101
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000009941 weaving Methods 0.000 claims abstract description 11
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 25
- 239000011701 zinc Substances 0.000 claims description 25
- 229910052725 zinc Inorganic materials 0.000 claims description 25
- 239000010935 stainless steel Substances 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 11
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 10
- 238000005554 pickling Methods 0.000 claims description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 8
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 8
- 238000005246 galvanizing Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 4
- 239000011787 zinc oxide Substances 0.000 claims description 4
- 238000005491 wire drawing Methods 0.000 claims description 3
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 2
- 235000010288 sodium nitrite Nutrition 0.000 claims description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Substances [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 claims description 2
- 230000001464 adherent effect Effects 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 15
- 238000011156 evaluation Methods 0.000 description 5
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 229910003460 diamond Inorganic materials 0.000 description 3
- 239000010432 diamond Substances 0.000 description 3
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 description 2
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005237 degreasing agent Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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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
- C23C22/07—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 phosphates
- C23C22/08—Orthophosphates
- C23C22/12—Orthophosphates containing zinc cations
- C23C22/13—Orthophosphates containing zinc cations containing also nitrate or nitrite anions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
-
- 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
-
- 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
- C23C2/36—Elongated material
- C23C2/38—Wires; Tubes
-
- 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
- C23C22/78—Pretreatment of the material to be coated
-
- 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
-
- 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
Abstract
The invention relates to the technical field of silk screen preparation, and aims to provide a preparation method capable of overcoming the defects that a high-strength stainless steel wire is coiled and is not easy to straighten in the weaving process, and then, a large hole and a small hole are generated, and the like.
Description
Technical Field
The invention relates to the technical field of wire mesh preparation, in particular to a preparation method of a stainless steel wire mesh.
Background
At present, stainless steel wires used for producing stainless steel gauze/diamond nets in the industry are mostly stainless steel wires with the elongation rate of 30% -40%, and the produced stainless steel gauze/diamond net is soft in net surface and easy to deform. If the gauze produced by using the stainless steel wire with low elongation percentage is used, the gauze has the problems of difficult straightening due to rolling in the weaving process, generation of large and small holes and the like because of high rigidity; when a stainless steel wire having a high elongation is used, the wire is easily straightened because of its soft quality, but is also easily plastically deformed.
Therefore, it is necessary to develop a stainless steel wire mesh process which can meet the production requirements.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a preparation method of a stainless steel wire mesh, which can solve the problems of low elongation, difficult straightening of high-strength stainless steel wires after being rolled in the weaving process, generation of mesh diseases such as large holes and small holes and the like.
In order to achieve the above object, the present invention provides the following technical solutions.
A preparation method of a stainless steel wire mesh comprises the following steps: the method comprises the steps of pretreating the stainless steel wire, then galvanizing, drawing the galvanized stainless steel wire to a target wire diameter, and then weaving a wire mesh with a target specification.
Further, the pretreatment comprises the following steps:
s1: removing oil stains, oxide layers and other adherends on the surface of the stainless steel wire;
s2: pickling the stainless steel wire to be treated in a pickling tank;
s3: the stainless steel wire to be treated is subjected to ultrasonic cleaning in an ultrasonic cleaning tank;
s4: cleaning a stainless steel wire to be treated in a clean water tank;
s5, drying the stainless steel wire to be treated in a drying furnace;
and S6, phosphating the galvanized workpiece to be treated in a phosphating tank.
Further, in step S1, the laser rust remover is used to remove oil stains, oxide layers and other adhering substances on the surface of the stainless steel wire.
Further, in step S2, the pickling solution is 15 to 20% by weight of hydrochloric acid, and the washing time is 60 to 75S.
Further, in step S3, the ultrasonic cleaning frequency is 300 to 450KHZ and the cleaning time is 30 to 45S.
Further, in step S4, the conductivity of the clean water is not higher than 15S/m, and the cleaning time is 60-75S.
Further, in step S6, the phosphating solution consists of phosphoric acid, zinc oxide, nitrate, sodium nitrite and water, and the phosphating time is 45-60S.
Further, the phosphatized stainless steel wire is galvanized in a zinc bath, and the zinc adding amount is 0.9-0.91 g.
Further, the amount of zinc added after wire drawing was 0.64g
The existing preparation process has the problems that the coiling is not easy to straighten, and the mesh diseases such as large and small holes are generated because the surface of the stainless steel wire is smooth and the stainless steel wire is hard wire of a coiled material, so that the woven mesh can move.
According to the invention, the original stainless steel wire is galvanized, and then the galvanized stainless steel wire is drawn, so that only a weak zinc layer is formed on the surface of the drawn stainless steel wire, and after the stainless steel wire is galvanized again, the zinc layer on the surface of the stainless steel wire is uniform, and the situations of zinc nodules and the like can not occur. In the weaving process, the zinc layer plays a role in increasing the surface friction of the stainless steel wires, and meanwhile, the zinc layer is softer than the stainless steel, so that the weft can be clamped through the weft, and the weft is prevented from being rolled and positioned to cause small holes due to the stainless steel wires after the steel buckle is in place.
The stainless steel gauze in the invention is replaced by the diamond gauze, and the problems of large and small holes, difficult straightening of coiled wires and the like can be avoided.
Compared with the prior art, the invention has the following advantages: (1) The problems that the stainless steel wire is not easy to straighten when being rolled in the weaving process, and the mesh diseases such as large holes and small holes are generated are solved. (2) The oxide layer and the oil stain are removed by laser, so that the use of degreasing agents is reduced, and the environment is protected. (3) Through ultrasonic cleaning, can wash away stainless steel wire surface impurity effectively, guarantee the adhesive force on zinc layer. (4) The phosphating solution can generate a uniform film on the surface of the stainless steel wire, has excellent adhesion with a zinc layer, and has the characteristics of strong corrosion resistance and low cost.
Drawings
FIG. 1 is a stainless steel wire mesh of example 1 of the present invention;
fig. 2 is a stainless steel wire mesh of comparative example 2 in the present invention.
Detailed Description
The invention is further described below with reference to examples, but the scope of the invention as claimed is not limited to the examples.
Example 1
In this embodiment, a stainless steel wire with a target wire diameter of 0.25mm and a raw material wire diameter of 0.4mm is taken as an example, and the preparation method comprises the following steps:
(1) The pretreatment comprises the following steps:
s1: removing oil stains, oxide layers and other adherends on the surface of the stainless steel wire by using three laser derusters; the included angle between any two laser derusters is 120 degrees, oil stains, oxide layers and other adhered matters can be removed without dead angles through multi-angle laser irradiation, and the laser derusters with lower emission power can be selected, so that the preparation cost is saved.
S2: passing the stainless steel wire after laser rust removal through a hydrochloric acid pickling tank with the concentration of 15-20 wt%, adjusting the linear speed, and controlling the stay time of the stainless steel wire in unit length in the pickling tank to be 60-75S.
S3: the stainless steel wire after acid washing is subjected to ultrasonic washing in an ultrasonic washing tank; wherein the ultrasonic cleaning frequency is 300-450 KHZ, and the cleaning time is 30-45S. .
S4: cleaning the stainless steel wire subjected to ultrasonic cleaning by a clean water tank; wherein the conductivity of the clean water is not higher than 15S/m.
S5, drying the stainless steel wire cleaned by clear water in a drying furnace; wherein the drying temperature is 40-45 DEG C
S6, allowing the dried galvanized workpiece to pass through a phosphating tank for phosphating, drying by an air knife and then winding; wherein the phosphating time is 45-60S, and the formula of 100kg phosphating solution is as follows: 25kg of 80% phosphoric acid, 5kg of zinc oxide, 20kg of zinc nitrate, 0.4kg of nickel nitrate, 7kg of manganese nitrate, 6kg of calcium nitrate, 2kg of ammonium nitrate and 34.6kg of water.
(2) And (3) galvanizing, wherein the temperature of zinc liquid in a zinc pool is controlled to be 440-450 ℃, the phosphatized stainless steel wire passes through the zinc pool, and the zinc adding amount is controlled to be 0.9-0.91 g.
(3) Drawing, namely drawing the stainless steel wire into a target wire diameter by using a drawing machine through 3 dies with gradually reduced hole diameters, and controlling the zinc loading amount after drawing to be 0.64g.
(4) Weaving, adopting a rapier machine to weave a stainless steel wire mesh with the width of 1m and the mesh of 1 x 1mm.
Comparative example 1
The comparative example takes a stainless steel wire with a target wire diameter of 0.25mm and a raw material wire diameter of 0.4mm as an example, and the preparation method comprises the following steps:
(1) The pretreatment comprises the following steps:
s1: removing oil stains, oxide layers and other adherends on the surface of the stainless steel wire by using three laser derusters; the included angle between any two laser derusters is 120 degrees, oil stains, oxide layers and other adhered matters can be removed without dead angles through multi-angle laser irradiation, and the laser derusters with lower emission power can be selected, so that the preparation cost is saved.
S2: passing the stainless steel wire after laser rust removal through a hydrochloric acid pickling tank with the concentration of 15-20 wt%, adjusting the linear speed, and controlling the stay time of the stainless steel wire in unit length in the pickling tank to be 60-75S.
S3: cleaning the stainless steel wire after acid cleaning through a clear water tank; wherein the conductivity of the clean water is not higher than 15S/m.
S4, drying the stainless steel wire cleaned by clear water in a drying furnace; wherein the drying temperature is 40-45 DEG C
S5, the dried galvanized workpiece is phosphated in a phosphating tank and is rolled after being dried by an air knife; wherein the phosphating time is 45-60S, and the formula of 100kg phosphating solution is as follows: 25kg of 80% phosphoric acid, 5kg of zinc oxide, 20kg of zinc nitrate, 0.4kg of nickel nitrate, 7kg of manganese nitrate, 6kg of calcium nitrate, 2kg of ammonium nitrate and 34.6kg of water.
(2) And (3) galvanizing, controlling the temperature of zinc liquid in a zinc pool to be 440-450 ℃, enabling the phosphated stainless steel wire to pass through the zinc pool, and controlling the zinc loading amount to be 0.9-0.91 g.
(3) Drawing, namely drawing the stainless steel wire into a target wire diameter by using a drawing machine through 3 dies with gradually reduced hole diameters, and controlling the zinc loading amount after drawing to be 0.64g.
(4) Weaving, adopting a rapier machine to weave a stainless steel wire mesh with the width of 1m and the mesh of 1 x 1mm.
Comparative example 2
The comparative example takes a stainless steel wire with a target wire diameter of 0.25mm and a raw material wire diameter of 0.4mm as an example, and the preparation method comprises the following steps:
(1) And drawing, namely drawing the stainless steel wire into a target wire diameter by using a drawing machine through 15 dies with gradually reduced hole diameters.
(2) Weaving, adopting a rapier machine to weave a stainless steel wire mesh with the width of 1m and the mesh of 1 x 1mm.
Appearance evaluation
The stainless steel screens of example 1 and comparative examples 1 to 2 were subjected to appearance evaluation, respectively, and the screen area evaluated was 1 × 1m, and the number (N) of large pores was visually observed. The evaluation grades are as follows: when N is less than or equal to 10 and the area of each 10 x 10cm is less than or equal to 2, the appearance grade of the silk screen is one grade; when N is more than 10 and less than or equal to 20 and the area of each 10 x 10cm is less than or equal to 3, the appearance grade of the silk screen is two grades; when N is more than 20 and less than or equal to 50 and the area of each 10 x 10cm is less than or equal to 3, the appearance grade of the silk screen is three grades; when N is more than 50, or more than or equal to 4 in every 10X 10cm area, the appearance grade of the silk screen is four grades.
The stainless steel wire mesh of example 1 was visually observed to have a number of small and large pores of 3 and a number of 1 or 0 per 10 × 10cm of area, giving the stainless steel wire mesh of example 1 an appearance grade of one.
The stainless steel wire mesh of comparative example 1 was visually observed to have a number of large and small pores of 4 and a number of 1 or 0 per 10 × 10cm of area, giving the stainless steel wire mesh of comparative example 1 an appearance grade of two.
The stainless steel wire mesh of comparative example 2 was visually observed to have a number of large pores of 28 and a number of 1 or 0 per 10 × 10cm area, giving the stainless steel wire mesh of comparative example 2 an appearance grade of two.
Evaluation of Corrosion resistance
The stainless steel wire mesh of example 1 and comparative examples 1 to 2 was cut into a size of 10 × 10cm, placed in a neutral salt spray box, and continuously sprayed at a temperature of 35 ℃ for 168 hours to evaluate the appearance. The test result shows that the appearance of the stainless steel screen of the example 1 is not obviously changed after being sprayed, and the stainless steel screen of the comparative example 1 has 2 light brown spots after being sprayed, and can be removed after being wiped. The stainless steel screen of comparative example 2 was sprayed with 6 brown spots and was not removed by wiping.
Evaluation of adhesion
A stainless steel sheet a with a thickness of 100 × 0.5mm was produced by the process of example 1 (pretreatment followed by galvanization), a stainless steel sheet B with a thickness of 100 × 0.5mm was produced by the process of comparative example 2 (ultrasonic cleaning was omitted from example 1), and a stainless steel sheet C with a thickness of 100 × 0.5mm was produced by the process of comparative example 2 (direct galvanization after wiping with isopropyl alcohol). The stainless steel plates a and B were scribed with a hundred-grid knife at 1 × 1mm intervals for 6 × 6mm, and pulled rapidly 3 times with 3M898 tape at 60 °. The results show that: the coating A of the stainless steel plate is not dropped off completely; the plating layer part of the stainless steel plate B with 2 grid scratch edges falls off; the stainless steel plate C had 2 lattice plating layers which did not fall off at all, and 5 lattice plating layers at the scratch edges partially fell off.
From the above verification results, it can be seen that: the stainless steel wires are sequentially subjected to pretreatment, galvanizing and wire drawing, so that the number of large and small holes generated during the weaving of the silk screen can be effectively reduced. The surface impurities of the stainless steel wire can be effectively cleaned through ultrasonic cleaning, and the adhesive force of a zinc layer is ensured. The surface of the stainless steel wire can be uniformly coated by the phosphating, and the stainless steel wire has excellent adhesion with a zinc layer and enhanced corrosion resistance.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (9)
1. A preparation method of a stainless steel wire mesh Jin Siwang is characterized by comprising the following steps: pretreating the stainless steel wire, then galvanizing, drawing the galvanized stainless steel wire to a target wire diameter, and then weaving a wire mesh with a target specification.
2. The method for preparing the stainless steel wire gauze according to claim 1, wherein the pretreatment comprises the following steps:
s1: removing oil stains, oxide layers and other adherends on the surface of the stainless steel wire;
s2: pickling the stainless steel wire to be treated in a pickling tank;
s3: the stainless steel wire to be treated is subjected to ultrasonic cleaning in an ultrasonic cleaning tank;
s4: cleaning the stainless steel wire to be treated in a clear water tank;
s5, drying the stainless steel wire to be treated in a drying furnace;
and S6, phosphating the galvanized workpiece to be treated in a phosphating tank.
3. The method for preparing the stainless steel wire mesh as claimed in claim 2, wherein in the step S1, oil stains, oxide layers and other adherents on the surface of the stainless steel wires are removed by a laser deruster.
4. The method for preparing a stainless steel wire mesh as claimed in claim 2, wherein the pickling solution is 15-20% by weight of hydrochloric acid and the washing time is 60-75S in step S2.
5. The method for preparing stainless steel wire meshes according to claim 2, wherein in step S3, the ultrasonic cleaning frequency is 300-450 KHZ and the cleaning time is 30-45S.
6. The method for preparing the stainless steel wire gauze according to the claim 2, wherein in the step S4, the conductivity of the clean water is not higher than 15S/m, and the cleaning time is 60-75S.
7. The method for preparing the stainless steel wire gauze according to the claim 2, wherein in the step S6, the phosphating solution is composed of phosphoric acid, zinc oxide, nitrate, sodium nitrite and water, and the phosphating time is 45-60S.
8. The method for preparing the stainless steel wire gauze as claimed in the claim 2, wherein the phosphated stainless steel wires are galvanized in a zinc bath, and the zinc loading amount is 0.9-0.91 g.
9. The method for preparing a stainless steel wire mesh according to claim 8, wherein the amount of zinc added after wire drawing is 0.64g.
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