CN115747614A - Production method of steel for tinned substrate - Google Patents
Production method of steel for tinned substrate Download PDFInfo
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- CN115747614A CN115747614A CN202211460327.8A CN202211460327A CN115747614A CN 115747614 A CN115747614 A CN 115747614A CN 202211460327 A CN202211460327 A CN 202211460327A CN 115747614 A CN115747614 A CN 115747614A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 60
- 239000010959 steel Substances 0.000 title claims abstract description 60
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 239000000758 substrate Substances 0.000 title claims abstract description 18
- 239000002893 slag Substances 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 36
- 238000010079 rubber tapping Methods 0.000 claims abstract description 28
- 238000007664 blowing Methods 0.000 claims abstract description 26
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 26
- 230000008569 process Effects 0.000 claims abstract description 22
- 238000007670 refining Methods 0.000 claims abstract description 18
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000009749 continuous casting Methods 0.000 claims abstract description 10
- 239000012535 impurity Substances 0.000 claims abstract description 10
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 41
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 36
- 229910052742 iron Inorganic materials 0.000 claims description 19
- 229910052786 argon Inorganic materials 0.000 claims description 18
- 229910052717 sulfur Inorganic materials 0.000 claims description 7
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 6
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 6
- 239000004571 lime Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 238000006477 desulfuration reaction Methods 0.000 claims description 4
- 230000023556 desulfurization Effects 0.000 claims description 4
- 239000011593 sulfur Substances 0.000 claims description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 230000003009 desulfurizing effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 46
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 12
- 239000001301 oxygen Substances 0.000 abstract description 12
- 238000010521 absorption reaction Methods 0.000 abstract description 7
- 238000007667 floating Methods 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 238000009847 ladle furnace Methods 0.000 description 10
- 239000005028 tinplate Substances 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000009849 vacuum degassing Methods 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229910000616 Ferromanganese Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009489 vacuum treatment Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention provides a production method of steel for a tinned substrate, and relates to the technical field of metal production. The method comprises the working procedures of KR method pretreatment, converter, steel tapping, aluminum wire feeding deoxidation treatment, shallow treatment of a ladle refining furnace, continuous casting and the like. The steel tapping process of the method does not adopt a wire feeding mode behind an aluminum deoxidizing furnace for deoxidizing, thereby reducing the nitrogen absorption amount in the steel tapping process and realizing the effective control of the nitrogen content. The LF shallow treatment slagging realizes the adjustment of slag components, ensures the capability of slag for absorbing impurities, accelerates the floating removal of impurities through slagging and soft blowing, and reduces the total oxygen content and the impurity level in steel. The invention realizes that the total oxygen content of the finished steel strip is less than or equal to 0.0030wt%, the nitrogen content is less than or equal to 0.0035wt%, the grade of each inclusion is less than or equal to 1 grade, and no size inclusion with the size of more than 20 mu m is left under the condition of no RH vacuum equipment and only LF refining treatment.
Description
Technical Field
The invention relates to the technical field of metal production, in particular to a production method of steel for a tinned substrate.
Background
Because the tin plate needs plating treatment and has a thin specification (the general thickness is 0.12 to 0.55mm), compared with a common product, the tin-plated substrate has higher requirements on inclusions, oxygen and nitrogen, surface quality and version type. The total oxygen content of the tin plate is generally controlled below 30ppm, the nitrogen content is required to be below 50ppm, generally below 40ppm, and the non-metallic inclusion particles are generally controlled below 50 μm.
The production process of the tinned plate of the domestic main iron and steel enterprises mainly adopts an RH method (RH-vacuum degassing) to carry out vacuum treatment so as to control the inclusion at a lower level. The general production flow is as follows: molten iron pretreatment → converter → RH vacuum degassing treatment → continuous casting, and the nitrogen content of the molten steel and the size and content of inclusions are effectively controlled. And part of enterprises adopt molten iron pretreatment → converter → Ladle refining Furnace (LF Furnace) white slag calcium treatment → continuous casting process. In the process of adopting the LF refining technology, nitrogen is easily increased under the high-temperature ionization of electric arcs, so that the MR series steel is difficult to produce only through the LF treatment. The increase of the nitrogen content in the steel will deteriorate the stamping workability, and the nitrogen-dissolved solid solution is a main cause of aging of the finished tin plate, and particularly, the influence of nitrogen is large for the strain aging effect after flattening, so that the nitrogen content is required to be as low as possible, the nitrogen content is generally less than 0.0050wt%, and for the soft tin plate, the nitrogen content in the steel should be controlled to be less than 0.0040 wt%.
Disclosure of Invention
In view of the above, the present invention is to provide a method for producing a steel for a tin-plated substrate, so as to solve the above problems.
Based on the purpose, the invention provides a production method of steel for a tinned substrate, which comprises the following steps:
s1, adopting a KR (Kambara Reactor) method to carry out desulfurization treatment on molten iron, carrying out pre-slagging and post-slagging treatment on the molten iron, and controlling the slag carrying amount of the molten iron to be less than 0.2wt% and the sulfur content of the molten iron to be less than or equal to 0.010wt%.
S2, filling the molten iron into a converter, blowing argon at the bottom of the converter in the whole process, controlling the tapping temperature to be 1600-1630 ℃, and controlling the end point carbon content to be 0.05-0.07wt%.
S3, tapping: adding lime at 800 kg/furnace and slag washing material at 300 kg/furnace, and tapping for more than or equal to 4min.
And S4, conveying the steel ladle to an argon blowing station for aluminum wire feeding deoxidation treatment, wherein the wire feeding speed is more than or equal to 4.5m/S, adding 200 kg/furnace of a composite deoxidizer, then adding 200 kg/furnace of a slagging medium, and soft blowing for 2 to 3 minutes.
And S5, conveying the steel ladle into a shallow treatment process of a steel ladle refining furnace, adding 400-700kg lime into the furnace, 400-800kg refining slag into the furnace, adjusting the slag state by using 200kg composite deoxidizer into the furnace, and adding 50-100kg aluminum powder into the furnace for deoxidation and slag adjustment.
And S6, carrying out component adjustment and temperature adjustment on the alloy in the ladle refining furnace, and then carrying out soft blowing on the alloy out of the station, wherein the soft blowing time is more than 10min.
S7, continuous casting: in the casting process, the tundish is kept in a full liquid level state, a carbon-free low-silicon covering agent is added on the liquid level of the tundish, and the long nozzle is cast in a whole-process protection mode by adopting a sealing ring and argon blowing to finish the production of the steel for the tinned substrate.
Compared with the prior art, the invention has the beneficial effects that: the method does not adopt a wire feeding mode behind the aluminum deoxidation furnace to deoxidize in the tapping process, reduces the nitrogen absorption amount in the tapping process, and realizes the effective control of the nitrogen content. The LF shallow treatment slagging realizes the adjustment of slag components, ensures the capability of slag for absorbing impurities, accelerates the floating removal of impurities through slagging and soft blowing, and reduces the total oxygen content and the impurity level in steel. The invention realizes that the total oxygen content of the finished steel strip is less than or equal to 0.0030wt%, the nitrogen content is less than or equal to 0.0035wt%, the grade of various inclusions is less than or equal to 1 grade, and no size inclusion with the size of more than 20um is generated under the condition of no RH vacuum equipment and only LF refining treatment.
Further, the steel for the tinned substrate comprises the following main chemical components in percentage by mass: c:0.06 to 0.08 percent, less than or equal to 0.02 percent of Si, mn:0.33 to 0.37 percent, less than or equal to 0.015 percent of S, less than or equal to 0.018 percent of P, alS:0.03 to 0.05 percent, less than or equal to 0.0030 percent of O, less than or equal to 0.0035 percent of N, and the balance of Fe and inevitable impurity elements.
Further, the stirring time of the desulfurization treatment in S1 is 8-10min, and the addition amount of the desulfurizer is 800-1300kg/furnace.
Further, the tapping process of S3 also comprises the following steps: and (5) opening argon to replace the air in the ladle.
Further, the refining slag in S5 comprises the following main chemical components in percentage by mass: siO 2 2 ：4~6%，CaO：45~55%，MgO：6~10%，Al 2 O 3 ：25~32%，TFe：1~5%，MnO：2~6%，R：8~12%。
Further, the superheat degree of the tundish in S7 is 15 to 30 ℃.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to specific embodiments below.
The invention provides a production method of steel for a tinned substrate, which comprises the following main chemical components in percentage by mass: c:0.06 to 0.08%, si is less than or equal to 0.02%, mn:0.33 to 0.37 percent, less than or equal to 0.015 percent of S, less than or equal to 0.018 percent of P, alS:0.03 to 0.05 percent, less than or equal to 0.0030 percent of O, less than or equal to 0.0035 percent of N, and the balance of Fe and inevitable impurity elements. The production method comprises the following steps:
s1, carrying out desulfurization treatment on blast furnace molten iron by adopting a KR method, wherein the stirring time is controlled to be 8-10min, and the addition amount of a desulfurizing agent is controlled to be 800-1300 kg/furnace. And the molten iron needs to be subjected to pre-slag skimming and post-slag skimming, so that the slag content of the molten iron entering the converter is less than 0.2wt%, the sulfur content of the molten iron entering the converter is less than or equal to 0.010wt%, the control of the end point sulfur content is relatively low, and the control of A-type inclusions is realized.
S2, charging the desulfurized molten iron into a converter, blowing argon at the bottom of the converter in the whole process, and controlling the nitrogen content of the molten steel at the end point. And (3) slagging is controlled in the converter control process, oxygen blowing is carried out by adopting a conical oxygen lance, blowing is carried out by adopting a top-bottom combined blown converter, blowing is controlled by using a sublance and secondary equipment, the double hit of the end point component temperature is ensured, the tapping temperature is controlled to be 1600 to 1630 ℃, the end point carbon content is controlled to be 0.05 to 0.07wt%, and the control level of the end point oxygen content is ensured to be relatively low.
And S3, introducing the molten iron in the converter into a steel ladle through a steel tapping hole. Argon is started in advance before tapping, so that argon replacement in the ladle is realized, and nitrogen absorption of molten steel is reduced. The overhaul ladle, the small repair ladle and the spare ladle are not used, the tapping temperature is reduced, and meanwhile, the pollution of refractory materials to molten steel is reduced. The converter controls the using times of the steel tapping hole, and the steel tapping hole is not produced in the front 30 furnaces or the rear 20 furnaces.
And only medium-carbon ferromanganese and a carburant are added in the tapping process for component adjustment, aluminum particles are not used for deoxidation in the tapping process, and nitrogen absorption of molten steel under low oxygen potential is effectively controlled. The tapping time is controlled to be more than or equal to 4min, preferably, the tapping time is controlled to be between 4 minutes and 30 seconds and 6 minutes. Meanwhile, the shape of the steel tapping hole is maintained without scattering flow, the smoothness of the steel flow is ensured, and the nitrogen absorption of the steel flow in the steel tapping process is reduced. Slag stopping is carried out by matching slag stopping cone with slag stopping detection in the tapping process, so that the tapping slag quantity is reduced, the oxidability of top slag of a steel ladle is reduced, and the probability of secondary oxidation of molten steel is reduced. In the tapping process, 800kg of lime and 300kg of slag washing material are added per furnace for slagging in advance, the slag formation after furnace and refining is accelerated, and the inclusion removal effect is improved.
And S4, deoxidizing by adopting an aluminum wire feeding process in an argon blowing station, and adjusting the content of AlS in the molten steel to the upper limit of an internal control target of the steel grade (the molten steel is strictly forbidden to be turned over greatly in the process). Soft blowing is carried out to avoid an argon blowing hole when an aluminum wire is fed, the wire feeding speed is more than or equal to 4.5m/s, the argon blowing flow is controlled after the wire is fed, the argon flow is properly increased for 1 to 2 minutes, a composite deoxidizer is added to adjust the slag content of 200 kg/furnace, the oxidability of the top slag of the steel ladle is adjusted, and the slag formation is accelerated. And then adding 200 kg/furnace of low-alkalinity slag former to adjust the alkalinity of the slag, carrying out soft blowing for 2 to 3 minutes, carrying out temperature measurement, sampling, and leaving the station.
S5, refining in an LF furnace, namely adopting an LF furnace shallow treatment process, adding lime 400 to 700kg/furnace, refining slag 400 to 800kg/furnace, adjusting the slag state by using a composite deoxidizer 200 kg/furnace, adding aluminum powder 50 to 100kg/furnace micro-deoxidation and slag regulation, not carrying out slagging and calcium treatment, ensuring that the slag state is more reasonable on the basis of controlling the cost, and achieving the purpose of adsorbing and mixing impurities during refining slagging. The refining slag comprises the following main chemical components in percentage by mass: siO 2 2 ：4%~6%，CaO：45%~55%，MgO：6%~10%，Al 2 O 3 ：25%~32%，TFe：1%~5%，MnO：2%~6%，R：8%~12%。
S6, alloy fine adjustment is carried out through LF, component precision is guaranteed, temperature adjustment is carried out, and the temperature stability of a continuous casting tundish is guaranteed. And soft blowing is carried out for more than 10min after LF (ladle furnace) is discharged, so that the purity of the molten steel is further improved, and the castability of the molten steel is ensured.
And S7, adopting full-process protection pouring for continuous casting. The high-capacity tundish and the air curtain retaining wall are used, the metallurgical function of the tundish is improved, and the level of inclusions is reduced. The ladle long nozzle is required to be cast by adopting the sealing ring and argon blowing whole-process protection, so that the nitrogen absorption caused by the exposure of molten steel is reduced. The tundish is kept full of liquid level to cast steel in the normal casting process, the continuous casting stability is improved, the carbon-free low-silicon covering agent is used for ensuring that the liquid level of the tundish is not exposed, and the nitrogen absorption is reduced. The argon blowing flow is strictly controlled, and slag entrapment caused by large argon blowing amount is prevented. The LF furnace is accurately controlled in temperature, the superheat degree of the tundish is 15-30 ℃, the quality of a casting blank is guaranteed, meanwhile, the drawing speed fluctuation caused by the temperature fluctuation of the tundish is reduced, the unsteady state pouring of continuous casting is caused, and the quality risk caused by the unsteady state pouring is reduced. Meanwhile, the continuous casting of the first ladle does not produce the steel grade, so that the factors influencing the cleanliness of molten steel, such as high temperature of the casting tundish, unstable pulling speed, refractory of the tundish and the like, are reduced.
Table 1 production examples
TABLE 2 actual product control
| Item | Class A (grade) | Class B (grade) | C type (grade) | Class D (grade) | Ds class (class) | Total oxygen content (ppm) | Nitrogen content (ppm) |
| Example 1 | 0 | 0.5 | 0 | 0.5 | 0 | 18 | 23 |
| Example 2 | 0 | 0.5 | 0 | 1 | 0 | 21 | 25 |
| Example 3 | 0 | 1 | 0 | 0 | 0 | 22 | 26 |
Three production examples are provided in tables 1 and 2, along with the corresponding steel product compositions and related parameters, and it can be seen that the steel strip product achieved by the method has a total oxygen content of 0.0030wt% or less, a nitrogen content of 0.0035wt% or less, a class of 1 or less inclusion levels, and no inclusions of sizes greater than 20 um.
The embodiments of the invention are intended to embrace all such alternatives, modifications and variances that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (6)
1. A production method of steel for a tinned substrate is characterized by comprising the following steps:
s1, desulfurizing molten iron by a KR method, carrying out pre-slagging and post-slagging treatment on the molten iron, and controlling the slag carrying amount of the molten iron to be less than 0.2wt% and the sulfur content of the molten iron to be less than or equal to 0.010wt%;
s2, filling the molten iron into a converter, blowing argon at the bottom of the converter in the whole process, controlling the tapping temperature to be 1600-1630 ℃, and controlling the end point carbon content to be 0.05-0.07wt%;
s3, tapping: adding lime of 800 kg/furnace and slag washing material of 300 kg/furnace, and tapping time is more than or equal to 4min;
s4, conveying the steel ladle to an argon blowing station for aluminum wire feeding deoxidation treatment, wherein the wire feeding speed is more than or equal to 4.5m/S, adding 200 kg/furnace of a composite deoxidizer, adding 200 kg/furnace of a slagging agent, and soft blowing for 2-3 minutes;
s5, conveying the steel ladle into a shallow treatment process of a steel ladle refining furnace, adding lime 400 to 700kg/furnace, refining slag 400 to 800kg/furnace, adjusting the slag state by a composite deoxidizer 200 kg/furnace, and adding aluminum powder 50 to 100kg/furnace for deoxidation and slag adjustment;
s6, performing component adjustment and temperature adjustment on the alloy in the ladle refining furnace, and then performing out-station soft blowing for more than 10min;
s7, continuous casting: and in the casting process, the tundish is kept in a full liquid level state, a carbon-free low-silicon covering agent is added on the liquid level of the tundish, and the long water gap is subjected to whole-process protection casting by adopting a sealing ring and argon blowing to finish the production of the steel for the tinned substrate.
2. The method for producing a steel for a tin-plated substrate according to claim 1, wherein the steel for a tin-plated substrate comprises the following main chemical components in percentage by mass: c:0.06 to 0.08 percent, less than or equal to 0.02 percent of Si, mn:0.33 to 0.37 percent, less than or equal to 0.015 percent of S, less than or equal to 0.018 percent of P, alS:0.03 to 0.05 percent, less than or equal to 0.0030 percent of O, less than or equal to 0.0035 percent of N, and the balance of Fe and inevitable impurity elements.
3. The method for producing a steel for a tin-plated substrate according to claim 1, wherein the stirring time for the desulfurization treatment in S1 is 8 to 10min, and the amount of the desulfurizing agent is 800 to 1300kg/furnace.
4. The method for producing steel for a tin-plated substrate according to claim 1, wherein the tapping process of S3 is preceded by: and opening argon to replace the air in the ladle.
5. The method for producing steel for a tin-plated substrate according to claim 1, wherein the refining slag in S5 comprises the following main chemical components in percentage by mass: siO 2 2 ：4~6%，CaO：45~55%，MgO：6~10%，Al 2 O 3 ：25~32%，TFe：1~5%，MnO：2~6%，R：8~12%。
6. The method for producing a steel for a tin-plated substrate according to claim 1, wherein the degree of superheat of the tundish in S7 is 15 to 30 ℃.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117587330A (en) * | 2024-01-19 | 2024-02-23 | 江苏省沙钢钢铁研究院有限公司 | High-nitrogen high-purity tinplate and production method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101245432A (en) * | 2007-07-06 | 2008-08-20 | 天津钢铁有限公司 | Technique for producing wire rod for low carbon drawn wire |
| CN102719738A (en) * | 2011-03-29 | 2012-10-10 | 鞍钢股份有限公司 | Hard tinned original plate with thin specification and manufacture method thereof |
| CN102952923A (en) * | 2012-11-27 | 2013-03-06 | 南京钢铁股份有限公司 | Process for smelting aluminum containing steel through calcium carbide deoxidation |
| CN108300948A (en) * | 2018-02-27 | 2018-07-20 | 首钢京唐钢铁联合有限责任公司 | A kind of MR T-5 CA steel grades tinning substrates and its manufacturing method |
| CN111349864A (en) * | 2020-03-12 | 2020-06-30 | 唐山钢铁集团有限责任公司 | High-strength high-plasticity annealed steel strip for pipe making and production method thereof |
| CN113088797A (en) * | 2021-03-25 | 2021-07-09 | 山东钢铁股份有限公司 | Shallow treatment process suitable for SPHC low-carbon series steel grades |
| CN114085953A (en) * | 2021-11-11 | 2022-02-25 | 阳春新钢铁有限责任公司 | Control method for acid dissolution of aluminum in aluminum-containing cold heading steel |
| CN115094299A (en) * | 2022-06-29 | 2022-09-23 | 阳春新钢铁有限责任公司 | Steelmaking production process of aluminum-containing cold forging steel |
-
2022
- 2022-11-17 CN CN202211460327.8A patent/CN115747614A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101245432A (en) * | 2007-07-06 | 2008-08-20 | 天津钢铁有限公司 | Technique for producing wire rod for low carbon drawn wire |
| CN102719738A (en) * | 2011-03-29 | 2012-10-10 | 鞍钢股份有限公司 | Hard tinned original plate with thin specification and manufacture method thereof |
| CN102952923A (en) * | 2012-11-27 | 2013-03-06 | 南京钢铁股份有限公司 | Process for smelting aluminum containing steel through calcium carbide deoxidation |
| CN108300948A (en) * | 2018-02-27 | 2018-07-20 | 首钢京唐钢铁联合有限责任公司 | A kind of MR T-5 CA steel grades tinning substrates and its manufacturing method |
| CN111349864A (en) * | 2020-03-12 | 2020-06-30 | 唐山钢铁集团有限责任公司 | High-strength high-plasticity annealed steel strip for pipe making and production method thereof |
| CN113088797A (en) * | 2021-03-25 | 2021-07-09 | 山东钢铁股份有限公司 | Shallow treatment process suitable for SPHC low-carbon series steel grades |
| CN114085953A (en) * | 2021-11-11 | 2022-02-25 | 阳春新钢铁有限责任公司 | Control method for acid dissolution of aluminum in aluminum-containing cold heading steel |
| CN115094299A (en) * | 2022-06-29 | 2022-09-23 | 阳春新钢铁有限责任公司 | Steelmaking production process of aluminum-containing cold forging steel |
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| CN117587330A (en) * | 2024-01-19 | 2024-02-23 | 江苏省沙钢钢铁研究院有限公司 | High-nitrogen high-purity tinplate and production method thereof |
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