CN103484757A - Enamel steel with scaling resistance and manufacturing method thereof - Google Patents
Enamel steel with scaling resistance and manufacturing method thereof Download PDFInfo
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Abstract
The invention discloses enamel steel with scaling resistance. The enamel steel is prepared from the following components in percentage by weight: 0.0020-0.0050% of C, 0.30-0.50% of Mn, 0.0050-0.0100% of Si, 0.010-0.015% of P, 0.011-0.020% of S, 0-0.010% of Als, 0.011-0.020% of O and the balance of Fe and other inevitable impurities. A manufacturing method sequentially comprises the following steps: pretreatment of molten iron, smelting by a converter, refining, continuous casting, hot continuous rolling, acid washing, cold continuous rolling, annealing and finishing, wherein the heating temperature for hot continuous rolling is 1150-1250 DEG C, the finish rolling temperature is 860-920 DEG C, the winding temperature is 650-750 DEG C, and the cold rolling reduction rate of cold continuous rolling is 60-80%. The enamel steel disclosed by the invention has no scaling phenomenon and low production difficulty, and is suitable for being applied to the technical field of iron and steel smelting.
Description
Technical field
The present invention relates to the smelting iron and steel technical field, refer to particularly a kind of Glassed Steel and manufacture method thereof with scaling resistance energy.
Background technology
Glassed Steel is mainly used in the aspects such as kitchen tools, sanitary equipment, water heater liner, industrial antisepsis equipment and building slab decoration, have the advantages that outward appearance is beautiful, erosion resistance is strong, for guaranteeing application of slip rear surface quality, require enameling sheet must there is good scaling resistance energy.In recent years along with the development of enamel technology, the static dust coat becomes main flow technique, this technique can require high to the scaling resistance of steel plate, therefore need to, by chemical composition design and controlling of production process being improved to the scaling resistance energy of Glassed Steel, it is generally acknowledged that steel plate (take the 1mm steel plate as example) hydrogen penetration time not there will be the quick-fried problem of squama while being greater than 10min.
By the metallurgical industry information standard, research institute is retrieved document resource both domestic and external, finds 28 pieces of pertinent literatures.Baosteel developed a kind of take Ultra-low carbon as the basis, add appropriate alloying element, manufacture method (CN201010179312) with cold rolling ultra low-carbon steel enameling sheet of good forming property and scaling resistance energy, specifically disclosing weight percent is C≤0.050, Si≤0.10, Mn≤0.50, P≤0.035, S≤0.035, Al:0.031～0.10, N≤0.015, O >=0.001, B:0.0003～0.020, Cu:0.01～0.50, also contain Nb:0.01～0.10, V:0.01～0.10, one or more in Ti:0.01～0.15, also contain Cr:0.01～0.10, Ni:0.01～0.10, one or more in Mo:0.01～0.10, JP2001342542 discloses cold rolling enameling sheet and the preparation method with excellent processability and enamel adherence of NKK exploitation, and specifically disclosing weight percent is C≤0.0035, Si≤0.01, Mn:0.2～0.4, P:0.003～0.10, S:0.005～0.03, Cu:0.02～0.05, Al≤0.001, N≤0.0035, O:0.045～0.10, Cr:0.03～0.08, Mo:0.002～0.08, added a large amount of alloying elements in the disclosed enameling sheet of JP2006307215A and JP2006045580A, wherein the element bottom price add-ons such as Cu, Co, Ni and Mo are 0.051%.The Glassed Steel of above these method manufactures all has good scaling resistance energy, but must be by add the alloying elements such as B, Ti, Cu, Cr, Ni in steel, what have also needs by content and the ratio of accurate control C, S, the elements such as N, Ti, and this must bring the rising of Glassed Steel smelting cost and production control difficulty.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of without fish-scaling effect, that production difficulty is low, with low cost Glassed Steel and manufacture method thereof with scaling resistance energy.
For achieving the above object, the Glassed Steel with scaling resistance energy that the present invention is designed, described Glassed Steel is made by following component and weight percent: C:0.0020～0.0050%, Mn:0.30～0.50%, Si:0.0050～0.0100%, P:0.010～0.015%, S:0.011～0.020%, Als:0～0.010%, O:0.011～0.020%, surplus is Fe and other inevitable impurity.
As preferred version, described Glassed Steel is made by following component and weight percent: C:0.0020～0.0045%, Mn:0.34～0.48%, Si:0.0052～0.0090%, P:0.011～0.013%, S:0.012～0.015%, Als:0.002～0.008%, O:0.012～0.019%, surplus is Fe and other inevitable impurity.
Further, described Glassed Steel is made by following component and weight percent: C:0.0028～0.0041%, Mn:0.36～0.45%, Si:0.0061～0.0089%, P:0.012%, S:0.013%, Als:0.003～0.007%, O:0.013～0.018%, surplus is Fe and other inevitable impurity.
Further, described Glassed Steel is made by following component and weight percent: C:0.0031～0.0038%, Mn:0.38～0.42%, Si:0.0069～0.0085%, Als:0.004～0.006%, O:0.015～0.017%, surplus is Fe and other inevitable impurity.
Further, described Glassed Steel is made by following component and weight percent: C:0.0036%, Mn:0.41%, Si:0.0076%, Als:0.005%, O:0.016%, surplus is Fe and other inevitable impurity.
The present invention has the manufacture method of the Glassed Steel of scaling resistance energy, comprise the following steps successively: hot metal pretreatment, converter smelting, refining, continuous casting, hot continuous rolling, pickling, cold continuous rolling, annealing, finishing, Heating temperature in described hot continuous rolling process is 1150～1250 ℃, finishing temperature is 860～920 ℃, coiling temperature is 650～750 ℃, and the cold rolling draft in described continuous cold rolling process is 60～80%.
As preferred version, the Heating temperature in described hot continuous rolling process is 1200 ℃, and finishing temperature is 880～900 ℃, and coiling temperature is 700～730 ℃, and the cold rolling draft in described continuous cold rolling process is 65～75%.
Further, the finishing temperature in described hot continuous rolling process is 900 ℃, and coiling temperature is 720 ℃, and the cold rolling draft in described continuous cold rolling process is 70%.
Again further, described annealing process is bell-type annealing, and annealing temperature is 700～800 ℃, and annealing time is 24～32h, and smooth unit elongation is 0.3～0.6%.
Further, described annealing process is continuous annealing, and annealing temperature is 800～840 ℃, and annealing time is 60～180s, and smooth unit elongation is 0.3～0.6%.
Principle of work of the present invention is such: C of the present invention≤0.0050%, because ultra low-carbon steel has good plasticity, in the reduction steel, carbon content can also effectively be avoided the generation of CO bubble in casting process, also can form the CO bubble when in the process of the application of slip simultaneously, C content is higher, easily cause the enamel needle pore defect, infringement enamel surfaces quality, therefore carbon content in should the reduce steel, but consider to reduce steel-making working control difficulty, preferably, C content is chosen as 0.0020～0.0050%; Mn content of the present invention is chosen in 0.30～0.50%, Mn can reduce oxygen level in molten steel as deoxidant element, form the precipitates such as MnO simultaneously and serve as hydrogen trap, the quick-fried performance of antagonism squama is favourable, during the Mn too high levels, intensity improves but plasticity significantly reduces, the processing that is unfavorable for board with enamel panel layer is used, and preferably, Mn content is chosen as 0.34～0.48%; Si of the present invention≤0.01%, Si also can reduce the enamel quality but Si content increases meeting as deoxidant element, and preferably, Si content is chosen as 0.0050～0.0100%; P of the present invention≤0.015%, P is impurity element, the plasticity of infringement steel plate, so its content is low as far as possible, preferably, P content is chosen as 0.011～0.013%; S of the present invention≤0.020%, S easily is combined with Mn and is formed plastic occluded foreignsubstance MnS, can serve as hydrogen trap, but S content increases, can damage steel plate plasticity, produce red brittleness, therefore can select a little higher than ultra low-carbon steel of S content, reduce desulphurization cost, preferably, S content is chosen as 0.010～0.020%; Als of the present invention≤0.01%, Al is strong reductor, can suppress the generation of other oxide compounds, the oxide compound of Al is poor to the adsorptive power of hydrogen, and easily produces surface imperfection, therefore selects a small amount of Al deoxidation; O of the present invention≤0.020%, O is the forming element of oxide compound in steel, oxygen level is higher, oxide compound is more, and antagonism squama quick-fried performance is favourable, but oxygen level is while surpassing 0.02%, easily produce on the one hand the CO bubble and be unfavorable for continuous casting production and slab quality, in stove, the molten damage of refractory materials is serious on the other hand, and therefore preferably, O content is chosen as 0.010～0.020%.
By optimizing the processing parameters such as hot continuous rolling, cold continuous rolling and annealing, make it to produce the Glassed Steel with good mechanical property and scaling resistance energy.
In sum, the invention has the advantages that: 1, the chemical composition of Glassed Steel of the present invention is simple, needn't add the expensive metallic elements such as Ti, Nb, Re, raw materials cost is low, required constituent content scope easily realizes simultaneously, smelt the control difficulty low, effectively reduced the smelting cost of Glassed Steel, 2, the Glassed Steel of manufacture of the present invention is organized as ferrite, its grain fineness number is 7～8 grades, concrete metallographic structure as shown in Figure 1, through check, the steel plate yield strength is 140～200MPa, and tensile strength is 280～340MPa, unit elongation is 40～46%, each is 1.6～2.2 to plasticity index r value, and work hardening exponent n value is 0.18～0.25, has good plasticity, 3, the enamel steel inclusion of manufacture of the present invention is the wire MnS that a large amount of diameters spherical MnO particle that is 1～5 μ m and a small amount of length are 10～100 μ m, the photo of enamel steel inclusion as shown in Figure 2, in application of slip process, MnO and MnS are mingled with all can serve as irreversible hydrogen trap, with the small-particle precipitated phase of single kind (as TiC, NbC, TiS etc.) compare, the inclusion acting in conjunction of different size and shape in Glassed Steel of the present invention, more can effectively suppress the diffusion of hydrogen in steel plate, guarantee that steel plate has good scaling resistance energy, after testing, the enameling sheet hydrogen penetration time (take the 1mm thickness steel plate as example) that the present invention manufactures is greater than 10min, after the application of slip without fish-scaling effect, surface quality is good.
The accompanying drawing explanation
Fig. 1 is the metallographic structure figure that the present invention has the Glassed Steel of scaling resistance energy;
Fig. 2 is the enamel steel inclusion organization chart that the present invention has the scaling resistance energy.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail (chemical composition of each embodiment, processing parameter and the performance test results table 1 after referring to embodiment is to table 3):
Embodiment 1:
In the present embodiment, Glassed Steel with scaling resistance energy is made by following component and weight percent: C:0.0020%, Mn:0.41%, Si:0.0050%, P:0.012%, S:0.012%, Als:0.003%, O:0.018%, surplus is Fe and other inevitable impurity.
Manufacture method with Glassed Steel of scaling resistance energy, comprise the following steps successively: hot metal pretreatment, converter smelting, refining, continuous casting, hot continuous rolling, pickling, cold continuous rolling, annealing, finishing, wherein, Heating temperature in described hot continuous rolling process is 1200 ℃, finishing temperature is 900 ℃, and coiling temperature is 750 ℃; Cold rolling draft in described continuous cold rolling process is 60%; Described annealing process is bell-type annealing, and annealing temperature is 750 ℃, and annealing time is 24h, and smooth unit elongation is 0.3%.
Through check, steel plate yield strength Rp0.2 is 158MPa, tensile strength R
mfor 321MPa, unit elongation A
80mmbe 43%, each is 2.2 to plasticity index r value, and work hardening exponent n value is 0.22, has good plasticity, and the hydrogen penetration time is 17min/mm, and quick-fried without squama after the application of slip, surface quality is good.
Embodiment 2:
The present embodiment is substantially the same manner as Example 1, difference is: the Glassed Steel with scaling resistance energy is made by following component and weight percent: C:0.0028%, Mn:0.36%, Si:0.0089%, P:0.015%, S:0.011%, Als:0.003%, O:0.013%, surplus is Fe and other inevitable impurity.
Have the manufacture method of the Glassed Steel of scaling resistance energy, wherein, the Heating temperature in described hot continuous rolling process is 1150 ℃, and finishing temperature is 860 ℃, and coiling temperature is 700 ℃; Cold rolling draft in described continuous cold rolling process is 65%.
Through check, steel plate yield strength R
p0.2for 147MPa, tensile strength R
mfor 290MPa, unit elongation A
80mmbe 42.8%, each is 2.1 to plasticity index r value, and work hardening exponent n value is 0.20, has good plasticity, and the hydrogen penetration time is 18min/mm.
Embodiment 3:
The present embodiment is substantially the same manner as Example 1, difference is: the Glassed Steel with scaling resistance energy is made by following component and weight percent: C:0.0031%, Mn:0.45%, Si:0.0083%, P:0.012%, S:0.015%, Als:0.008%, O:0.020%, surplus is Fe and other inevitable impurity.
Have the manufacture method of the Glassed Steel of scaling resistance energy, wherein, the Heating temperature in described hot continuous rolling process is 1250 ℃, and finishing temperature is 920 ℃, and coiling temperature is 650 ℃; Cold rolling draft in described continuous cold rolling process is 65%; Described annealing process is continuous annealing, and annealing temperature is 840 ℃, and annealing time is 60s, and smooth unit elongation is 0.4%.
Through check, steel plate yield strength R
p0.2for 162MPa, tensile strength R
mfor 298MPa, unit elongation A
80mmbe 41.1%, each is 1.9 to plasticity index r value, and work hardening exponent n value is 0.19, has good plasticity, and the hydrogen penetration time is 23min/mm.
Embodiment 4:
The present embodiment is substantially the same manner as Example 1, difference is: the Glassed Steel with scaling resistance energy is made by following component and weight percent: C:0.0036%, Mn:0.50%, Si:0.0061%, P:0.013%, S:0.020%, Als:0.006%, O:0.015%, surplus is Fe and other inevitable impurity.
Have the manufacture method of the Glassed Steel of scaling resistance energy, wherein, the Heating temperature in described hot continuous rolling process is 1200 ℃, and finishing temperature is 880 ℃, and coiling temperature is 700 ℃; Cold rolling draft in described continuous cold rolling process is 70%; Described annealing process is continuous annealing, and annealing temperature is 830 ℃, and annealing time is 90s, and smooth unit elongation is 0.5%.
Through check, steel plate yield strength R
p0.2for 168MPa, tensile strength R
mfor 301MPa, unit elongation A
80mmbe 40.8%, each is 1.9 to plasticity index r value, and work hardening exponent n value is 0.20, has good plasticity.
Embodiment 5:
The present embodiment is substantially the same manner as Example 1, difference is: the Glassed Steel with scaling resistance energy is made by following component and weight percent: C:0.0038%, Mn:0.42%, Si:0.0069%, P:0.011%, S:0.012%, Als:0.005%, O:0.016%, surplus is Fe and other inevitable impurity.
Have the manufacture method of the Glassed Steel of scaling resistance energy, wherein, the coiling temperature in described hot continuous rolling process is 700 ℃; Cold rolling draft in described continuous cold rolling process is 70%; Described annealing process is bell-type annealing, and annealing temperature is 700 ℃, and annealing time is 32h, and smooth unit elongation is 0.5%.
Through check, steel plate yield strength R
p0.2for 143MPa, tensile strength R
mfor 286MPa, unit elongation A
80mmbe 45.6%, each is 2.0 to plasticity index r value, has good plasticity, and the hydrogen penetration time is 21min/mm.
Embodiment 6:
The present embodiment is substantially the same manner as Example 1, difference is: the Glassed Steel with scaling resistance energy is made by following component and weight percent: C:0.0036%, Mn:0.41%, Si:0.0076%, P:0.012%, S:0.011%, Als:0.004%, O:0.017%, surplus is Fe and other inevitable impurity.
Have the manufacture method of the Glassed Steel of scaling resistance energy, wherein, the finishing temperature in described hot continuous rolling process is 880 ℃, and coiling temperature is 720 ℃; Cold rolling draft in described continuous cold rolling process is 70%; Described annealing process is bell-type annealing, and annealing temperature is 720 ℃, and annealing time is 28h, and smooth unit elongation is 0.4%.
Through check, steel plate yield strength R
p0.2for 155MPa, tensile strength R
mfor 307MPa, each is 2.1 to plasticity index r value, and work hardening exponent n value is 0.25, has good plasticity, and the hydrogen penetration time is 20min/mm.
Embodiment 7:
The present embodiment is substantially the same manner as Example 1, difference is: the Glassed Steel with scaling resistance energy is made by following component and weight percent: C:0.0041%, Mn:0.38%, Si:0.0052%, P:0.010%, S:0.012%, Als:0.010%, O:0.012%, surplus is Fe and other inevitable impurity.
Have the manufacture method of the Glassed Steel of scaling resistance energy, wherein, the Heating temperature in described hot continuous rolling process is 1250 ℃, and coiling temperature is 700 ℃; Cold rolling draft in described continuous cold rolling process is 75%; Smooth unit elongation is 0.4%.
Through check, steel plate stretching intensity R
mfor 294MPa, unit elongation A
80mmbe 42.5%, each is 2.0 to plasticity index r value, has good plasticity, and the hydrogen penetration time is 20min/mm.
Embodiment 8:
The present embodiment is substantially the same manner as Example 1, difference is: the Glassed Steel with scaling resistance energy is made by following component and weight percent: C:0.0035%, Mn:0.48%, Si:0.0090%, P:0.012%, S:0.012%, Als:0.005%, O:0.015%, surplus is Fe and other inevitable impurity.
Have the manufacture method of the Glassed Steel of scaling resistance energy, wherein, the coiling temperature in described hot continuous rolling process is 700 ℃; Cold rolling draft in described continuous cold rolling process is 75%; ; Described annealing process is continuous annealing, and annealing temperature is 820 ℃, and annealing time is 90s, and smooth unit elongation is 0.6%.
Through check, steel plate yield strength R
p0.2for 178MPa, tensile strength R
mfor 303MPa, unit elongation A
80mmbe 41.0%, each is 1.8 to plasticity index r value, has good plasticity, and the hydrogen penetration time is 18min/mm.
Embodiment 9:
The present embodiment is substantially the same manner as Example 1, difference is: the Glassed Steel with scaling resistance energy is made by following component and weight percent: C:0.0045%, Mn:0.30%, Si:0.0085%, P:0.013%, S:0.013%, Als:0.002%, O:0.016%, surplus is Fe and other inevitable impurity.
Have scaling resistance can the manufacture method of Glassed Steel, wherein, in described hot continuous rolling process Heating temperature be 1150 ℃, finishing temperature is 880 ℃, coiling temperature is 650 ℃; Cold rolling draft in described continuous cold rolling process is 75%; Described annealing process is continuous annealing, and annealing temperature is 820 ℃, and annealing time is 120s, and smooth unit elongation is 0.5%.
Through check, steel plate yield strength R
p0.2for 182MPa, tensile strength R
mfor 334MPa, unit elongation A
80mmbe 40.5%, each is 1.8 to plasticity index r value, and work hardening exponent n value is 0.21, has good plasticity, and the hydrogen penetration time is 15min/mm.
Embodiment 10:
The present embodiment is substantially the same manner as Example 1, difference is: the Glassed Steel with scaling resistance energy is made by following component and weight percent: C:0.0050%, Mn:0.34%, Si:0.0100%, P:0.012%, S:0.012%, Als:0.007%, O:0.011%, surplus is Fe and other inevitable impurity.
Have scaling resistance can the manufacture method of Glassed Steel, wherein, in described hot continuous rolling process Heating temperature be 1150 ℃, finishing temperature is 880 ℃, coiling temperature is 700 ℃; Cold rolling draft in described continuous cold rolling process is 80%; Described annealing process is continuous annealing, and annealing temperature is 800 ℃, and annealing time is 180s, and smooth unit elongation is 0.4%.
Through check, steel plate yield strength R
p0.2for 196MPa, tensile strength R
mfor 332MPa, unit elongation A
80mmbe 40.3%, each is 1.6 to plasticity index r value, and work hardening exponent n value is 0.18, has good plasticity, and the hydrogen penetration time is 20min/mm.
Table 1 has been listed the chemical component weight percentage composition (surplus is Fe and inevitable impurity) of the embodiment of the present invention 1～10 Glassed Steel.
The chemical composition of table 1 embodiment (wt%)
| Embodiment | C | Mn | Si | P | S | Als | O |
| 1 | 0.0020 | 0.41 | 0.0050 | 0.012 | 0.012 | 0.003 | 0.018 |
| 2 | 0.0028 | 0.36 | 0.0089 | 0.015 | 0.011 | 0.003 | 0.013 |
| 3 | 0.0031 | 0.45 | 0.0083 | 0.012 | 0.015 | 0.008 | 0.020 |
| 4 | 0.0036 | 0.50 | 0.0061 | 0.013 | 0.020 | 0.006 | 0.015 |
| 5 | 0.0038 | 0.42 | 0.0069 | 0.011 | 0.012 | 0.005 | 0.016 |
| 6 | 0.0036 | 0.41 | 0.0076 | 0.012 | 0.011 | 0.004 | 0.017 |
| 7 | 0.0041 | 0.38 | 0.0052 | 0.010 | 0.012 | 0.010 | 0.012 |
| 8 | 0.0035 | 0.48 | 0.0090 | 0.012 | 0.012 | 0.005 | 0.015 |
| 9 | 0.0045 | 0.30 | 0.0085 | 0.013 | 0.013 | 0.002 | 0.016 |
| 10 | 0.0050 | 0.34 | 0.0100 | 0.012 | 0.012 | 0.007 | 0.011 |
The corresponding processing parameter of Glassed Steel institute for preparing each embodiment is as shown in table 2.
The processing parameter of each embodiment of table 2
To mechanical property, hydrogen penetration time and the application of slip test of the resulting corresponding steel of above-mentioned 1～10 each embodiment, detected result is as shown in table 3.
The performance test results of table 3 embodiment
Table 4 to table 6 is Comparative Examples 1～6 situations, can find out, when chemical composition or production technique exceed the scope of the invention, in the mechanical property of steel plate and scaling resistance energy at least one performance poor, can not meet Glassed Steel punch process or application of slip requirement.
The chemical composition of each Comparative Examples of table 4 (wt%)
| Comparative Examples | C | Mn | Si | P | S | Als | O | Remarks |
| 1 | 0.0042 | 0.36 | 0.0060 | 0.012 | 0.018 | 0.035 | 0.002 | The Al deoxidation, O content is low |
| 2 | 0.0028 | 0.15 | 0.0230 | 0.015 | 0.012 | 0.006 | 0.012 | Mn content is low, Si content is high |
| 3 | 0.0035 | 0.21 | 0.0080 | 0.014 | 0.032 | 0.008 | 0.014 | Mn content is low, S content is high |
| 4 | 0.0082 | 0.35 | 0.0060 | 0.011 | 0.012 | 0.009 | 0.008 | C content is high, O content is low |
| 5 | 0.0038 | 0.42 | 0.0065 | 0.011 | 0.012 | 0.005 | 0.016 | Normal composition |
| 6 | 0.0035 | 0.48 | 0.0073 | 0.012 | 0.012 | 0.005 | 0.015 | Normal composition |
The processing parameter of each Comparative Examples of table 5
The performance test results of each Comparative Examples of table 6
Annotate: Comparative Examples 1～4 chemical composition exceeds the scope of the invention, although mechanical performance index meets the punch process requirement, the hydrogen penetration time is lower than 10min/mm, after the application of slip, all occurs in various degree fish-scaling effect illustrating that Comparative Examples can not meet application of slip requirement.
Although Comparative Examples 5 scaling resistances can be good, the steel plate yield strength is higher, and unit elongation is low, and each is on the low side to plasticity index r value, causes flexibility of operation poor, can not meet the requirement of Glassed Steel punch process;
In like manner, although Comparative Examples 6 scaling resistances can be good, steel plate yield strength and tensile strength are higher, and unit elongation, respectively on the low side to plasticity index r value and work hardening exponent n value, cause flexibility of operation poor, can not meet the requirement of Glassed Steel punch process.
Claims (10)
- One kind have scaling resistance can Glassed Steel, it is characterized in that: this Glassed Steel is made by following component and weight percent: C:0.0020～0.0050%, Mn:0.30～0.50%, Si:0.0050～0.0100%, P:0.010～0.015%, S:0.011～0.020%, Als:0～0.010%, O:0.011～0.020%, surplus is Fe and other inevitable impurity.
- 2. the Glassed Steel that there is according to claim 1 the scaling resistance energy, it is characterized in that: this Glassed Steel is made by following component and weight percent: C:0.0020～0.0045%, Mn:0.34～0.48%, Si:0.0052～0.0090%, P:0.011～0.013%, S:0.012～0.015%, Als:0.002～0.008%, O:0.012～0.019%, surplus is Fe and other inevitable impurity.
- 3. the Glassed Steel that there is according to claim 1 the scaling resistance energy, it is characterized in that: this Glassed Steel is made by following component and weight percent: C:0.0028～0.0041%, Mn:0.36～0.45%, Si:0.0061～0.0089%, P:0.012%, S:0.013%, Als:0.003～0.007%, O:0.013～0.018%, surplus is Fe and other inevitable impurity.
- 4. the Glassed Steel that there is according to claim 1 the scaling resistance energy, it is characterized in that: this Glassed Steel is made by following component and weight percent: C:0.0031～0.0038%, Mn:0.38～0.42%, Si:0.0069～0.0085%, Als:0.004～0.006%, O:0.015～0.017%, surplus is Fe and other inevitable impurity.
- 5. the Glassed Steel that there is according to claim 1 the scaling resistance energy, it is characterized in that: this Glassed Steel is made by following component and weight percent: C:0.0036%, Mn:0.41%, Si:0.0076%, Als:0.005%, O:0.016%, surplus is Fe and other inevitable impurity.
- A claim 1 described have scaling resistance can the manufacture method of Glassed Steel, comprise the following steps successively: hot metal pretreatment, converter smelting, refining, continuous casting, hot continuous rolling, pickling, cold continuous rolling, annealing, finishing, it is characterized in that: the Heating temperature in described hot continuous rolling process is 1150～1250 ℃, finishing temperature is 860～920 ℃, coiling temperature is 650～750 ℃, and the cold rolling draft in described continuous cold rolling process is 60～80%.
- 7. the manufacture method that there is according to claim 6 the Glassed Steel of scaling resistance energy, it is characterized in that: the Heating temperature in described hot continuous rolling process is 1200 ℃, finishing temperature is 880～900 ℃, coiling temperature is 700～730 ℃, and the cold rolling draft in described continuous cold rolling process is 65～75%.
- 8. have according to claim 7 the manufacture method of the Glassed Steel of scaling resistance energy, it is characterized in that: the finishing temperature in described hot continuous rolling process is 900 ℃, and coiling temperature is 720 ℃, and the cold rolling draft in described continuous cold rolling process is 70%.
- 9. according to the described manufacture method with Glassed Steel of scaling resistance energy of any one in claim 6～8, it is characterized in that: described annealing process is bell-type annealing, annealing temperature is 700～800 ℃, and annealing time is 24～32h, and smooth unit elongation is 0.3～0.6%.
- 10. according to the described manufacture method with Glassed Steel of scaling resistance energy of any one in claim 6～8, it is characterized in that: described annealing process is continuous annealing, annealing temperature is 800～840 ℃, and annealing time is 60～180s, and smooth unit elongation is 0.3～0.6%.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104087828A (en) * | 2014-07-16 | 2014-10-08 | 武汉钢铁(集团)公司 | Full-ferrite enamel steel for heat exchanger and production method thereof |
| CN105088101A (en) * | 2015-07-17 | 2015-11-25 | 武汉钢铁(集团)公司 | Steel for enamel heat transfer element having corrosion resistance and manufacturing method thereof |
| CN106222551A (en) * | 2016-08-16 | 2016-12-14 | 武汉钢铁股份有限公司 | A kind of flawless nitriding in surface iron ware substrate and production method |
| CN107326268A (en) * | 2017-08-16 | 2017-11-07 | 马鞍山钢铁股份有限公司 | A kind of cold rolling Steel for enamel of economical deep-draw and production method |
| CN107574375A (en) * | 2017-08-31 | 2018-01-12 | 武汉钢铁有限公司 | Counterenamel hot rolling acid-cleaning steel plate and its manufacture method with excellent application of slip performance |
| CN108220799A (en) * | 2017-12-27 | 2018-06-29 | 柳州钢铁股份有限公司 | Household electrical appliances cold rolling low-carbon glassed steel |
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| CN108796380A (en) * | 2017-04-26 | 2018-11-13 | 宝山钢铁股份有限公司 | Pole low-carbon cold rolling enamel sheet and its manufacturing method of the yield strength in 210MPa or more after firing |
| CN108796391A (en) * | 2017-04-26 | 2018-11-13 | 宝山钢铁股份有限公司 | A kind of enamel steel and its manufacturing method with excellent plasticity and toughness and scaling resistance |
| CN111057828A (en) * | 2019-12-24 | 2020-04-24 | 新余钢铁股份有限公司 | High-oxygen enamel steel and production method thereof |
| CN111647814A (en) * | 2020-06-08 | 2020-09-11 | 首钢集团有限公司 | Cold-rolled steel plate for enamel and preparation method thereof |
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