CN114965235A - Method for simulating scale explosion resistance enameling burning - Google Patents
Method for simulating scale explosion resistance enameling burning Download PDFInfo
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- CN114965235A CN114965235A CN202210488764.4A CN202210488764A CN114965235A CN 114965235 A CN114965235 A CN 114965235A CN 202210488764 A CN202210488764 A CN 202210488764A CN 114965235 A CN114965235 A CN 114965235A
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Abstract
A method for simulating anti-scaling enameling firing comprises the steps of polishing a cold-rolled enamel steel sample piece through surface abrasive paper, wiping the sample piece through alcohol, pouring prepared anti-scaling slurry on one side of the sample piece, hanging redundant scaling slurry through a hanging rod, placing the sample piece into a heating furnace, preserving heat, sampling, cooling to room temperature, and carrying out natural anti-scaling detection. The invention combines the simulated enamel steel enameling process with the natural aging scale explosion resistance detection means, can provide process revision basis for batch trial production before large-scale production of steel mills, reduces the supply of potential scale explosion risk rolls to customers, and effectively simulates the scale explosion problem caused by hydrogen precipitation after the performance detection result is close to the performance after the real enamel process, thereby achieving the purpose of simulating the scale explosion resistance after enameling; the method can be widely used in the field of firstly enameling and then stamping cold-rolled enamel steel in a steel mill, effectively improves the development and improvement efficiency of steel grades, and reduces the transportation cost and the use cost.
Description
Technical Field
The invention belongs to the technical field of metallurgy, and particularly relates to a method for simulating scale explosion resistance enameling burning.
Background
Enamel products are mainly daily necessities, and are popular because of attractive appearance and durability. In the field of household appliances, the usage amount of enamel steel in the inner container of the water heater is large, and the requirement of the inner container of the water heater on the enamel quality and the punching property is high. The enamel product has the advantages of both metal material (good toughness, easy processing and automatic production) and ceramic material (corrosion resistance, aging resistance, wear resistance, high temperature resistance, no toxicity and decoration), and is gradually applied more widely along with the development of national economy.
The anti-scaling explosion is one of the important indexes of the enamel quality. The fish scaling defect has strong correlation with the hydrogen dissolving capacity of the steel plate, and hydrogen in the steel plate mainly comes from hydrogen brought in by the steel plate and a processing technology (pickling and cleaning technology before enamel). Some manufacturers of water heater liners require that steel plates are not coated with oil, acid washing and cleaning processes are not needed before enameling, and single-side enameling reduces the scaling risk of enamel products, and the scaling resistance requirement of enamel steel is higher and higher.
The invention combines the simulated enamel steel enameling process with natural aging to detect the scale explosion resistance, can provide process revision basis for batch trial production before large-scale production of steel mills, reduces the supply of potential scale explosion risk rolls to customers, and effectively simulates the scale explosion problem caused by hydrogen precipitation after the performance detection result is close to the performance after the real enamel process, thereby achieving the purpose of simulating the scale explosion resistance after enameling; the method can be widely used in the field of firstly enameling and then stamping cold-rolled enamel steel in a steel mill, effectively improves the development and improvement efficiency of steel grades, and reduces the transportation cost and the use cost; the simulation process and the process are successfully applied to the industrialization of steel plants, and a new direction is opened for the research of cold plate enamel steel.
Disclosure of Invention
The invention aims to provide a method for simulating scale explosion resistance enameling burning.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a method for simulating anti-scaling enameling firing comprises the steps of polishing a cold-rolled enamel steel sample piece through surface sand paper and wiping the cold-rolled enamel steel sample piece through alcohol, pouring the prepared anti-scaling slurry on a single surface, hanging the excessive scaling slurry through a hanging rod to ensure the thickness of the slurry, placing the slurry into a heating furnace for heat preservation, taking samples, cooling the samples to room temperature, and then carrying out natural anti-scaling detection.
The cold-rolled enamel steel sample piece is correspondingly provided with the brands of DC01EK, DC04EK and the like.
The scale explosion resistant slurry is prepared from 70-75% of scale explosion resistant powder and 30-25% of distilled water.
The scale-explosion-resistant cold-rolled enameled steel sample strip ensures single-side full coverage in the process of pouring the scale-explosion-resistant slurry.
The thickness of the single-side enamel slurry hung by the hanging rod is 15-20 mu m.
The heating temperature of the heating furnace is 810-840 ℃.
The heating furnace of the invention has the heat preservation time of 9-12 min.
The scale explosion resistance detection is that the scale explosion resistance detection is carried out for 7-10 days at room temperature, whether the surface scale explosion resistance enamel coating has cracks or peeling is observed, and the hydrogen storage capacity of the enamel steel for the water heater can be met without the problems.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: 1. the invention can provide the process revision basis for batch trial production before large-scale production in steel mills by simulating the scale explosion resisting enameling firing method and detecting the scale explosion resisting performance of the cold-rolled sheet through room temperature placement, thereby reducing the risk roll with potential scale explosion occurrence and providing the risk roll for customers. 2. The anti-fish scaling detection result after simulation by the method is close to the performance of the real enameling process, the pinning effect of the crystal boundary defects on the movement of dislocation of hydrogen permeation in the heating process of the actual water heater is effectively simulated, and the aim of simulating the anti-fish scaling of the enameling substrate is fulfilled. 3. The method can be widely applied to the field of firstly enameling and then stamping cold-rolled enamel steel products in a steel mill, effectively improves the development and improvement efficiency of steel grades, and simultaneously reduces the transportation cost and the use cost. 4. The simulation process and the process of the invention are successfully applied to the industrialization of steel plants, and open up a new direction for the research of the fish scaling resistance of cold-rolled enamel steel.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
Example 1
Polishing one side of a cold-rolled enamel steel DC01EK sample sheet by 180-mesh abrasive paper to ensure that the single side is completely polished once, washing the surface residues with distilled water, and then wiping with laboratory general alcohol. Meanwhile, the scale explosion resistant slurry is prepared by 70 percent of low scale explosion resistant powder and 30 percent of distilled water. And (3) pouring the prepared scale explosion resistant slurry on the whole surface, hanging the excessive scale explosion resistant slurry by using a No. 20 hanging rod, placing the surface slurry with the thickness of 15 micrometers into a heating furnace at 835 ℃, preserving the temperature for 11 minutes, opening the furnace, sampling, placing the sample in a storage rack, cooling to room temperature, placing the sample for 7 days, and carrying out natural scale explosion resistance detection.
By tracking the practical application of the corresponding cold-rolled coil of the sample piece to a certain household appliance client, the method simulates the detection result of the scale explosion resistance of the cold-rolled enameled steel sample piece subjected to scale explosion enameling treatment, and the detection result is consistent with the detection result after the production of a client production line, and the scale explosion phenomenon does not occur, so that the method is proved to be stable and reliable.
Example 2
And (3) polishing one side of a cold-rolled enamel steel DC01EK sample sheet by 240-mesh abrasive paper to ensure that the single side is completely polished once, washing the surface residues with distilled water, and then wiping with laboratory general alcohol. Meanwhile, the scale explosion resistant slurry is prepared according to the mixture ratio of 75% of scale explosion resistant powder and 25% of distilled water. And (3) pouring the prepared scale explosion resistant slurry on the whole surface, hanging redundant scale explosion resistant slurry by using a No. 24 hanging rod, placing the slurry with the surface thickness of 16 micrometers into a heating furnace at 840 ℃, preserving heat for 10 minutes, opening the furnace, sampling, placing a storage rack, cooling to room temperature, placing for 9 days, and performing natural scale explosion resistant detection.
By tracking the practical application of the cold-rolled coil corresponding to the sample in a certain household appliance client, the method simulates the detection result of the scale explosion resistance of the cold-rolled enamel steel sample subjected to scale explosion resistant enameling firing treatment, the detection result is consistent with the detection result after the production of a client production line, and the scale explosion phenomenon does not occur, so that the method is proved to be stable and reliable.
Example 3
And (3) polishing one side of a cold-rolled enamel steel DC01EK sample sheet by 200-mesh abrasive paper to ensure that the single side is completely polished once, washing the surface residues with distilled water, and then wiping with laboratory general alcohol. Meanwhile, the scale explosion resistant slurry is prepared, and the mixture ratio is 72 percent of scale explosion resistant powder and 28 percent of distilled water. And (3) pouring the prepared scale explosion resistant slurry on the whole surface, hanging the excessive scale explosion resistant slurry by using a No. 26 hanging rod, placing the surface slurry with the thickness of 17 mu m into a heating furnace with the temperature of 830 ℃, preserving the heat for 10 minutes, opening the furnace, sampling, placing a storage rack, cooling to room temperature, placing for 8 days, and carrying out natural scale explosion resistance detection.
By tracking the practical application of the cold-rolled coil corresponding to the sample in a certain household appliance client, the method simulates the detection result of the scale explosion resistance of the cold-rolled enamel steel sample subjected to scale explosion resistant enameling firing treatment, the detection result is consistent with the detection result after the production of a client production line, and the scale explosion phenomenon does not occur, so that the method is proved to be stable and reliable.
Example 4
And (3) polishing one side of a cold-rolled enameled steel DC04EK sample sheet by 200-mesh abrasive paper to ensure that the single side is completely polished once, washing the surface residues with distilled water, and then wiping with laboratory general alcohol. Meanwhile, low-scale explosion slurry is prepared, and the mixture ratio is 72 percent of anti-scale explosion powder and 28 percent of distilled water. And (3) pouring the prepared scale explosion resistant slurry on the whole surface, hanging the excessive scale explosion resistant slurry by using a No. 22 hanging rod, placing the surface slurry with the thickness of 16 microns into a heating furnace with the temperature of 830 ℃, preserving the heat for 10 minutes, opening the furnace, sampling, placing a storage rack, cooling to room temperature, placing for 8 days, and carrying out natural scale explosion resistant detection.
By tracking the practical application of the cold-rolled coil corresponding to the sample in a certain household appliance client, the method simulates the detection result of the scale explosion resistance of the cold-rolled enamel steel sample subjected to scale explosion resistant enameling firing treatment, the detection result is consistent with the detection result after the production of a client production line, and the scale explosion phenomenon does not occur, so that the method is proved to be stable and reliable.
Example 5
And (3) polishing one side of a cold-rolled enameled steel DC04EK sample sheet by 280-mesh abrasive paper to ensure that the single side is completely polished once, washing the surface residues with distilled water, and then wiping with laboratory general alcohol. Meanwhile, the scale explosion resistant slurry is prepared according to the mixture ratio of 75% of scale explosion resistant powder and 25% of distilled water. And (3) pouring the prepared scale explosion resistant slurry on the whole surface, hanging redundant scale explosion resistant slurry by using a No. 30 hanging rod, placing the surface slurry with the thickness of 20 microns into a heating furnace at 810 ℃, preserving the heat for 9 minutes, opening the furnace, sampling, placing a storage rack, cooling to room temperature, placing for 10 days, and carrying out natural scale explosion resistant detection.
By tracking the practical application of the cold-rolled coil corresponding to the sample in a certain household appliance client, the method simulates the detection result of the scale explosion resistance of the cold-rolled enamel steel sample subjected to scale explosion resistant enameling firing treatment, the detection result is consistent with the detection result after the production of a client production line, and the scale explosion phenomenon does not occur, so that the method is proved to be stable and reliable.
Example 6
Polishing one side of a cold-rolled enameled steel DC04EK sample sheet by 180-mesh abrasive paper to ensure that the single side is completely polished once, washing the surface residues with distilled water, and then wiping with laboratory general alcohol. Meanwhile, the scale explosion resistant slurry is prepared, and the ratio is 70% of scale explosion resistant powder and 30% of distilled water. And (3) pouring the prepared scale explosion resistant slurry on the whole surface, hanging the redundant scale explosion resistant slurry by using a 28# hanging rod, placing the surface slurry with the thickness of 18 mu m into a heating furnace at 835 ℃, keeping the temperature for 12 minutes, opening the furnace, sampling, placing a storage rack, cooling to room temperature, placing for 11 days, and carrying out natural scale explosion resistance detection.
By tracking the practical application of the cold-rolled coil corresponding to the sample in a certain household appliance client, the method simulates the detection result of the scale explosion resistance of the cold-rolled enamel steel sample subjected to scale explosion resistant enameling firing treatment, the detection result is consistent with the detection result after the production of a client production line, and the scale explosion phenomenon does not occur, so that the method is proved to be stable and reliable.
The method reduces the potential fish-scaling risk coil provided for customers, the performance detection result after simulation is close to the performance after the real enamel process, the fish-scaling problem caused by hydrogen evolution is effectively simulated, and the purpose of simulating the fish-scaling resistance after enamel firing is achieved.
Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention and it is intended to cover in the claims the invention as defined in the appended claims.
Claims (10)
1. A method for simulating anti-scaling enameling firing is characterized in that a single surface of a cold-rolled enamel steel sample is polished by abrasive paper and wiped by alcohol, prepared anti-scaling slurry is cast on a sample plate, redundant scaling slurry is hung by a hanging rod, the sample plate is placed in a heating furnace and then is kept warm, the sample plate is sampled and then is cooled to room temperature, and natural anti-scaling detection is carried out.
2. The method for simulating anti-scaling enameling firing according to claim 1, wherein the sand paper grinding mesh number of the cold-rolled enamel steel sample is 180-280.
3. The method of claim 1, wherein the wiping alcohol is a laboratory-grade alcohol.
4. The method for simulating fish scale explosion-resistant enameling firing according to claim 1, wherein the low-fish scale explosion-resistant slurry is prepared by mixing 70-75% of fish scale explosion-resistant powder and 30-25% of distilled water.
5. The method for simulating the fish-scaling-resistant enameling firing according to claim 1, wherein the slurry hanging rod is a 20-30# slurry hanging rod, and the surface slurry thickness is controlled to be 15-20 μm.
6. The method as claimed in claim 1, wherein the heating temperature of the heating furnace is 810-840 ℃.
7. The method for simulating fish scaling resistance enameling firing according to claim 1, wherein the single-side full coverage of the polished sample plate wiped by alcohol is ensured in the process of pouring the fish scaling resistance slurry on the cold-rolled enamel steel sample plate.
8. The method for simulating the fish scaling resistant enameling firing according to claim 1, wherein the holding time is measured after the sample wafer coated with the fish scaling resistant slurry is placed in a heating furnace and the furnace door is closed, and the holding time is kept for 9-12 min.
9. The method for simulating the scale explosion and enameling burning resistance according to claim 1, wherein the method is carried out at room temperature for more than or equal to 7 days.
10. The method for simulating the fish scaling resistant enameling firing according to claim 9, wherein the method is carried out at room temperature for 7-10 days.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210488764.4A CN114965235A (en) | 2022-05-06 | 2022-05-06 | Method for simulating scale explosion resistance enameling burning |
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| CN202210488764.4A CN114965235A (en) | 2022-05-06 | 2022-05-06 | Method for simulating scale explosion resistance enameling burning |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114121170A (en) * | 2021-11-09 | 2022-03-01 | 河钢股份有限公司 | Numerical simulation method for hydrogen permeation process of enameled pressed steel |
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2022
- 2022-05-06 CN CN202210488764.4A patent/CN114965235A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114121170A (en) * | 2021-11-09 | 2022-03-01 | 河钢股份有限公司 | Numerical simulation method for hydrogen permeation process of enameled pressed steel |
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