CN111974654A - Rust removal method for iron artware - Google Patents
Rust removal method for iron artware Download PDFInfo
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- CN111974654A CN111974654A CN202010871287.0A CN202010871287A CN111974654A CN 111974654 A CN111974654 A CN 111974654A CN 202010871287 A CN202010871287 A CN 202010871287A CN 111974654 A CN111974654 A CN 111974654A
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- artware
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 56
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 28
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 238000004140 cleaning Methods 0.000 claims abstract description 14
- 238000004506 ultrasonic cleaning Methods 0.000 claims abstract description 11
- 238000009835 boiling Methods 0.000 claims abstract description 10
- 238000005498 polishing Methods 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 238000005237 degreasing agent Methods 0.000 claims abstract description 8
- 239000013527 degreasing agent Substances 0.000 claims abstract description 8
- 238000005238 degreasing Methods 0.000 claims abstract description 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 42
- 239000006229 carbon black Substances 0.000 claims description 35
- 238000003756 stirring Methods 0.000 claims description 27
- 239000007788 liquid Substances 0.000 claims description 26
- 238000001035 drying Methods 0.000 claims description 25
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 24
- 239000000843 powder Substances 0.000 claims description 19
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 18
- 238000002156 mixing Methods 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 18
- 239000012459 cleaning agent Substances 0.000 claims description 12
- 238000002791 soaking Methods 0.000 claims description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 239000001293 FEMA 3089 Substances 0.000 claims description 8
- 239000001397 quillaja saponaria molina bark Substances 0.000 claims description 8
- 229930182490 saponin Natural products 0.000 claims description 8
- 150000007949 saponins Chemical class 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 6
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 6
- 150000003852 triazoles Chemical class 0.000 claims description 6
- 229910052602 gypsum Inorganic materials 0.000 claims description 5
- 239000010440 gypsum Substances 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 238000010926 purge Methods 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 239000008236 heating water Substances 0.000 claims description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000004519 grease Substances 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010171 animal model Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 235000020095 red wine Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/002—Pretreatement
-
- 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
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
- B05D3/102—Pretreatment of metallic substrates
-
- 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
- B05D7/14—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 metal, e.g. car bodies
-
- 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
-
- 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
-
- 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
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/19—Iron or steel
-
- 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
Abstract
The invention discloses a rust removing method for iron artware, which comprises the following steps: the method comprises the following steps: mechanically polishing the prepared artware, and manually polishing and repairing the hidden positions of the side corners; step two: putting the polished artware in the step one into an ultrasonic cleaning machine, adding clear water and a sodium hydroxide solution, and rapidly cleaning by using ultrasonic waves to remove dirt on the surface; step three: heating the ultrasonic cleaning tank to 50-60 ℃, boiling for 5-8min, then adding a hydrochloric acid solution to neutralize the solution to pH7.0-7.5, then adding a degreasing agent with the mass of 7-9% into water, heating to 70-80 ℃, boiling for 26-30min, and cooling to obtain the degreasing handicraft. The rust removing method for the iron artware is simple and easy to implement, can quickly and effectively remove surface rust, can treat rusted artware in large batch, is simple in raw materials and low in cost, and can be cleaned and dried to avoid rust residue and rust floating.
Description
Technical Field
The invention belongs to the technical field of rust removal, and particularly relates to a rust removal method for an iron artwork.
Background
The iron has excellent processability and metallic luster, the value of the iron is higher and higher along with the development of the society, the manufactured artware is attractive and firm, the appreciation level is improved, the manufactured artware has the characteristics of high glossiness, various varieties, strong fashion sense, long preservation time and the like, can meet the requirements of beautifying modern home and working environment, and can be processed into various animal models, abstract sculptures, red wine placing racks, art lamps and the like; the iron art craft not only can be used as a home decoration ornament, but also can be made into a delicate art gift, and the iron art craft is unique in process, vivid in appearance and deeply loved by people without losing the general style of the iron art craft. However, while the iron artware provides high appreciation value, iron which is a main component of the iron artware is easy to generate oxidation reaction, so that iron rust is formed on the surface of the artware, and particularly, the oxidation speed of the iron artware is accelerated in a high-temperature and high-humidity environment, so that the attractiveness and the service life of the artware are seriously reduced.
Disclosure of Invention
The invention aims to provide a rust removing method for iron artware, which solves the problems that the existing rust removing method for iron artware in the background technology is complex, cannot quickly and effectively remove surface rust, cannot treat rusted artware in large batch, is high in manufacturing cost and cannot be cleaned and dried.
In order to achieve the purpose, the invention provides the following technical scheme: a rust removal method for iron artware comprises the following steps:
the method comprises the following steps: mechanically polishing the prepared artware, and manually polishing and repairing the hidden positions of the side corners;
step two: putting the polished artware in the step one into an ultrasonic cleaning machine, adding clear water and a sodium hydroxide solution, and rapidly cleaning by using ultrasonic waves to remove dirt on the surface;
step three: heating the ultrasonic cleaning tank to 50-60 ℃, boiling for 5-8min, then adding a hydrochloric acid solution to neutralize the solution to pH7.0-7.5, then adding a degreasing agent with the mass of 7-9% into water, heating to 70-80 ℃, boiling for 26-30min, and cooling to obtain a degreasing handicraft;
step four: mixing water, citric acid, sodium hydroxide, ammonia water, glycerol and triazole according to a ratio of 15: 8: adding the mixture into a stirring barrel according to the weight ratio of 0.5:1:1:0.1, and uniformly stirring and mixing the mixture by using an electric stirrer to prepare a rust removing and preventing cleaning agent;
step five: placing the oil-removing artware treated in the third step into a rust removing groove, adding the oil-removing artware into the rust removing and preventing cleaning agent prepared in the fourth step, heating to 60-80 ℃, and soaking for 2.5-4 hours;
step six: cleaning the handicraft soaked in the step five by using normal temperature water; purging the parts by adopting compressed air;
step seven: adding water into the carbon black powder, stirring to prepare carbon black viscous liquid, using a coating brush to brush a layer of the carbon black viscous liquid on the artware treated in the sixth step, carrying out semi-drying, then soaking the carbon black viscous liquid into the yellow mud mixture for 2-4min, taking out the carbon black viscous liquid, placing the carbon black viscous liquid in a high-temperature furnace for treatment, introducing nitrogen into the high-temperature furnace, reducing the temperature to 30-35 ℃, and reducing the temperature at the speed of 8 ℃/min;
step eight: and taking out the handicraft in the furnace, cooling, cleaning and drying to obtain the rust removal handicraft.
Further, the hydrochloric acid solution in the third step has a mass concentration of 0.3% -0.4%.
And further, in the seventh step, the handicraft base body adhered with the carbon black viscous liquid is placed into a drying box for drying treatment by warm air, and the drying temperature of the drying box is 40-50 ℃.
Further, weighing 21-25 parts by weight of water, 12-14 parts by weight of ethylene glycol, 6-9 parts by weight of saponin, 3-4 parts by weight of glycerol and 2-5 parts by weight of turpentine oil according to parts by weight, heating the water to 35-39 ℃, sequentially stirring and adding the ethylene glycol, the saponin, the glycerol and the turpentine oil, and stirring and mixing to obtain the oil removal agent.
Further, the stirring speed of the electric stirrer in the fourth step is 125-145 r/min.
Further, the temperature of the high-temperature furnace in the seventh step is 250-.
Further, the concentration of the sodium hydroxide solution in the second step is 0.1-0.5 mol/ml.
Further, in the seventh step, 33-37 parts by weight of loess powder, 12-15 parts by weight of carbon black powder and 3-6 parts by weight of gypsum powder are weighed according to the mass, and water is added to be stirred and mixed into a viscous state to prepare a yellow mud mixture.
Compared with the prior art, the invention has the beneficial effects that:
(1) adding sodium hydroxide into water to make the solution become alkaline and denature the grease attached to the surface of the artware, adding an oil removing agent after neutralization of hydrochloric acid, wherein the oil removing agent contains organic components capable of dissolving the grease attached to the artware, so that the effect of removing the grease is achieved, and other impurities and foreign matters on the surface of the artware can be removed.
(2) Mixing water, citric acid, sodium hydroxide, ammonia water, glycerol and triazole according to a ratio of 15: 8: the rust removing and preventing cleaning agent prepared by mixing the components in the weight ratio of 0.5:1:1:0.1 can react and dissolve rust in the soaking process, the generated heat is small, the stability is high, the cleaning agent is safe and reliable, a layer of carbon black viscous liquid is coated on the artware treated in the step six by using a coating brush, the artware is semi-dried and then immersed in the yellow mud mixture for 2-4min, the artware is taken out and placed in a high-temperature furnace for treatment, the residual rust residues are removed by using high temperature, the efficiency is high, and the rust removing quality is further improved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A rust removal method for iron artware comprises the following steps:
the method comprises the following steps: mechanically polishing the prepared artware, and manually polishing and repairing the hidden positions of the side corners;
step two: putting the polished artware in the step one into an ultrasonic cleaning machine, adding clear water and a sodium hydroxide solution, and rapidly cleaning by using ultrasonic waves to remove dirt on the surface;
step three: heating the ultrasonic cleaning tank to 50-60 ℃, boiling for 5-8min, then adding a hydrochloric acid solution to neutralize the solution to pH7.0-7.5, then adding a degreasing agent with the mass of 7-9% into water, heating to 70-80 ℃, boiling for 26-30min, and cooling to obtain a degreasing handicraft;
step four: mixing water, citric acid, sodium hydroxide, ammonia water, glycerol and triazole according to a ratio of 15: 8: adding the mixture into a stirring barrel according to the weight ratio of 0.5:1:1:0.1, and uniformly stirring and mixing the mixture by using an electric stirrer to prepare a rust removing and preventing cleaning agent;
step five: placing the oil-removing artware treated in the third step into a rust removing groove, adding the oil-removing artware into the rust removing and preventing cleaning agent prepared in the fourth step, heating to 60-80 ℃, and soaking for 2.5-4 hours;
step six: cleaning the handicraft soaked in the step five by using normal temperature water; purging the parts by adopting compressed air;
step seven: adding water into the carbon black powder, stirring to prepare carbon black viscous liquid, using a coating brush to brush a layer of the carbon black viscous liquid on the artware treated in the sixth step, carrying out semi-drying, then soaking the carbon black viscous liquid into the yellow mud mixture for 2-4min, taking out the carbon black viscous liquid, placing the carbon black viscous liquid in a high-temperature furnace for treatment, introducing nitrogen into the high-temperature furnace, reducing the temperature to 30-35 ℃, and reducing the temperature at the speed of 8 ℃/min;
step eight: and taking out the handicraft in the furnace, cooling, cleaning and drying to obtain the rust removal handicraft.
Wherein the hydrochloric acid solution in the third step has a mass concentration of 0.3-0.4%.
And seventhly, putting the handicraft substrate adhered with the carbon black viscous liquid into a drying box for drying by warm air, wherein the drying temperature of the drying box is 40-50 ℃.
The degreasing agent is prepared by weighing 21-25 parts by weight of water, 12-14 parts by weight of ethylene glycol, 6-9 parts by weight of saponin, 3-4 parts by weight of glycerol and 2-5 parts by weight of turpentine oil according to parts by weight, heating water to 35-39 ℃, sequentially stirring and adding the ethylene glycol, the saponin, the glycerol and the turpentine oil, and stirring and mixing.
Wherein, the stirring speed of the electric stirrer in the fourth step is 125-145 r/min.
Wherein the temperature of the high-temperature furnace in the seventh step is 250-300 ℃, the temperature rising speed is 13 ℃/min, and the heating time is 30-40 min.
Wherein the concentration of the sodium hydroxide solution in the second step is 0.1-0.5 mol/ml.
And in the seventh step, 33-37 parts by weight of loess powder, 12-15 parts by weight of carbon black powder and 3-6 parts by weight of gypsum powder are weighed according to the mass, and water is added to be stirred and mixed into a viscous state to prepare a yellow mud mixture.
Example 2
A rust removal method for iron artware comprises the following steps:
the method comprises the following steps: mechanically polishing the prepared artware, and manually polishing and repairing the hidden positions of the side corners;
step two: putting the polished artware in the step one into an ultrasonic cleaning machine, adding clear water and a sodium bicarbonate solution, and rapidly cleaning by using ultrasonic waves to remove dirt on the surface;
step three: heating the ultrasonic cleaning tank to 50-60 ℃, boiling for 5-8min, then adding a hydrochloric acid solution to neutralize the solution to pH7.0-7.5, then adding a degreasing agent with the mass of 7-9% into water, heating to 70-80 ℃, boiling for 26-30min, and cooling to obtain a degreasing handicraft;
step four: mixing water, citric acid, sodium hydroxide, ammonia water, glycerol and triazole according to a ratio of 15: 8: adding the mixture into a stirring barrel according to the weight ratio of 0.5:1:1:0.1, and uniformly stirring and mixing the mixture by using an electric stirrer to prepare a rust removing and preventing cleaning agent;
step five: placing the oil-removing artware treated in the third step into a rust removing groove, adding the oil-removing artware into the rust removing and preventing cleaning agent prepared in the fourth step, heating to 60-80 ℃, and soaking for 2.5-4 hours;
step six: cleaning the handicraft soaked in the step five by using normal temperature water; purging the parts by adopting compressed air;
step seven: adding water into the carbon black powder, stirring to prepare carbon black viscous liquid, using a coating brush to brush a layer of the carbon black viscous liquid on the artware treated in the sixth step, carrying out semi-drying, then soaking the carbon black viscous liquid into the yellow mud mixture for 2-4min, taking out the carbon black viscous liquid, placing the carbon black viscous liquid in a high-temperature furnace for treatment, introducing nitrogen into the high-temperature furnace, reducing the temperature to 30-35 ℃, and reducing the temperature at the speed of 8 ℃/min;
step eight: and taking out the handicraft in the furnace, cooling, cleaning and drying to obtain the rust removal handicraft.
Wherein, the mass concentration of the hydrochloric acid solution in the third step is 0.3-0.4%, and the hydrochloric acid with the concentration is convenient for quickly adjusting the concentration of the solution to pH7.0-7.5.
And seventhly, putting the handicraft substrate adhered with the carbon black viscous liquid into a drying box for drying treatment by warm air, wherein the drying temperature of the drying box is 40-50 ℃, the drying efficiency is high, and manpower and material resources are saved.
The degreasing agent is prepared by weighing 21-25 parts by weight of water, 12-14 parts by weight of ethylene glycol, 6-9 parts by weight of saponin, 3-4 parts by weight of glycerol and 2-5 parts by weight of turpentine oil according to parts by weight, heating the water to 35-39 ℃, sequentially stirring and adding the ethylene glycol, the saponin, the glycerol and the turpentine oil, and stirring and mixing.
Wherein, the stirring speed of the electric stirrer in the fourth step is 125-145r/min, thereby improving the stirring efficiency, saving the stirring time and rapidly and uniformly mixing the raw materials.
Wherein the temperature of the high-temperature furnace in the seventh step is 250-300 ℃, the temperature rising speed is 13 ℃/min, the heating time is 30-40min, the temperature of the high-temperature furnace is 250-300 ℃, the residual rust residues are removed by using high temperature, the efficiency is high, and the rust removal quality is further improved.
And in the second step, the concentration of the sodium carbonate solution is 0.1-0.5 mol/ml, the ultrasonic cleaning efficiency is improved, the cleaning effect is more obvious, and manpower and material resources are saved.
And in the seventh step, 33-37 parts by weight of loess powder, 12-15 parts by weight of carbon black powder and 3-6 parts by weight of gypsum powder are weighed according to the mass, water is added and stirred to be mixed into a viscous state to prepare a yellow mud mixture, and the loess powder, the carbon black powder and the gypsum powder are added and stirred to be mixed into the viscous state, so that the artware is protected conveniently, the effect is more prominent, and the artware is not easy to damage while rust removal is performed.
When the invention works: adding sodium hydroxide into water to make the solution become alkaline and denature the grease attached to the surface of the artware, adding an oil removing agent after neutralization of hydrochloric acid, wherein the oil removing agent contains organic components capable of dissolving the grease attached to the artware, so that the effect of removing the grease is achieved, and other impurities and foreign matters on the surface of the artware can be removed. Mixing water, citric acid, sodium hydroxide, ammonia water, glycerol and triazole according to a ratio of 15: 8: the rust removing and preventing cleaning agent prepared by mixing the components in the weight ratio of 0.5:1:1:0.1 can react and dissolve rust in the soaking process, the generated heat is small, the stability is high, the cleaning agent is safe and reliable, a layer of carbon black viscous liquid is coated on the artware treated in the step six by using a coating brush, the artware is semi-dried and then immersed in the yellow mud mixture for 2-4min, the artware is taken out and placed in a high-temperature furnace for treatment, the residual rust residues are removed by using high temperature, the efficiency is high, and the rust removing quality is further improved. The production method of the composite coating greatly reduces the method steps, saves the process cost, is stable and reliable, has simple equipment, high automation degree, convenient operation and strong practicability, and is suitable for wide popularization and use.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A rust removal method for iron artware is characterized by comprising the following steps:
the method comprises the following steps: mechanically polishing the prepared artware, and manually polishing and repairing the hidden positions of the side corners;
step two: putting the polished artware in the step one into an ultrasonic cleaning machine, adding clear water and a sodium hydroxide solution, and rapidly cleaning by using ultrasonic waves to remove dirt on the surface;
step three: heating the ultrasonic cleaning tank to 50-60 ℃, boiling for 5-8min, then adding a hydrochloric acid solution to neutralize the solution to pH7.0-7.5, then adding a degreasing agent with the mass of 7-9% into water, heating to 70-80 ℃, boiling for 26-30min, and cooling to obtain a degreasing handicraft;
step four: mixing water, citric acid, sodium hydroxide, ammonia water, glycerol and triazole according to a ratio of 15: 8: adding the mixture into a stirring barrel according to the weight ratio of 0.5:1:1:0.1, and uniformly stirring and mixing the mixture by using an electric stirrer to prepare a rust removing and preventing cleaning agent;
step five: placing the oil-removing artware treated in the third step into a rust removing groove, adding the oil-removing artware into the rust removing and preventing cleaning agent prepared in the fourth step, heating to 60-80 ℃, and soaking for 2.5-4 hours;
step six: cleaning the handicraft soaked in the step five by using normal temperature water; purging the parts by adopting compressed air;
step seven: adding water into the carbon black powder, stirring to prepare carbon black viscous liquid, using a coating brush to brush a layer of the carbon black viscous liquid on the artware treated in the sixth step, carrying out semi-drying, then soaking the carbon black viscous liquid into the yellow mud mixture for 2-4min, taking out the carbon black viscous liquid, placing the carbon black viscous liquid in a high-temperature furnace for treatment, introducing nitrogen into the high-temperature furnace, reducing the temperature to 30-35 ℃, and reducing the temperature at the speed of 8 ℃/min;
step eight: and taking out the handicraft in the furnace, cooling, cleaning and drying to obtain the rust removal handicraft.
2. The method for removing rust on iron artware according to claim 1, characterized by comprising the following steps of: the hydrochloric acid solution in the third step has the mass concentration of 0.3-0.4%.
3. The method for removing rust on iron artware according to claim 1, characterized by comprising the following steps of: and seventhly, putting the handicraft substrate adhered with the carbon black viscous liquid into a drying box for drying by warm air, wherein the drying temperature of the drying box is 40-50 ℃.
4. The method for removing rust on iron artware according to claim 1, characterized by comprising the following steps of: the degreasing agent is prepared by weighing 21-25 parts by weight of water, 12-14 parts by weight of ethylene glycol, 6-9 parts by weight of saponin, 3-4 parts by weight of glycerol and 2-5 parts by weight of turpentine oil according to parts by weight, heating water to 35-39 ℃, sequentially stirring and adding the ethylene glycol, the saponin, the glycerol and the turpentine oil, and stirring and mixing.
5. The method for removing rust on iron artware according to claim 1, characterized by comprising the following steps of: the stirring speed of the electric stirrer in the fourth step is 125-145 r/min.
6. The method for removing rust on iron artware according to claim 1, characterized by comprising the following steps of: in the seventh step, the temperature of the high-temperature furnace is 250-300 ℃, the temperature rising speed is 13 ℃/min, and the heating time is 30-40 min.
7. The method for removing rust on iron artware according to claim 1, characterized by comprising the following steps of: and in the second step, the concentration of the sodium hydroxide solution is 0.1-0.5 mol/ml.
8. The method for removing rust on iron artware according to claim 1, characterized by comprising the following steps of: and seventhly, weighing 33-37 parts by weight of loess powder, 12-15 parts by weight of carbon black powder and 3-6 parts by weight of gypsum powder according to the mass, adding water, stirring and mixing to form a viscous state, and preparing a yellow mud mixture.
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| CN202010871287.0A CN111974654A (en) | 2020-08-26 | 2020-08-26 | Rust removal method for iron artware |
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Application publication date: 20201124 |