CN103805877A - Preparation method of steel applied to enamel - Google Patents
Preparation method of steel applied to enamel Download PDFInfo
- Publication number
- CN103805877A CN103805877A CN201210436207.4A CN201210436207A CN103805877A CN 103805877 A CN103805877 A CN 103805877A CN 201210436207 A CN201210436207 A CN 201210436207A CN 103805877 A CN103805877 A CN 103805877A
- Authority
- CN
- China
- Prior art keywords
- enamel
- steel
- rolling
- hot
- rolled sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
The invention discloses a preparation method of steel applied to enamel. The chemical compositions of the steel comprise, by weight, 0.04 to 0.08% of C, 0.2 to 0.4% of Si, 0.3 to 0.5% of Mn, no more than 0.030% of P, no more than 0.015% of S, 0.06 to 0.08% of Ti, 0.40 to 0.60% of Ni, 0.30 to 0.50% of Cr, 0.06 to 0.08% of Cu, and the balance of Fe and unavoidable impurities. The preparation process comprises the steps of hot metal desulphurization, converter top and bottom combined blowing, argon blowing, protection and casting into slabs, and finally controlled rolling and cool controlled rolling are carried out to from hot rolled plates.
Description
Technical field
The present invention relates to technical field of ferrous metallurgy, relate in particular to the preparation method of a kind of enamel steel.
Background technology
Enamel has been widely used with steel tool.Early stage enamel with steel in order to guarantee its cold formability and enamel property, carbon (C) content generally below 0.01%, carbon containing hardly.In its production technique, need add expensive microalloy element, after hot rolling, cold-rolling treatment, also to carry out decarburizing annealing processing, the enamel of producing with steel not only intensity low (general yield strength≤200MPa), production process is many, the production cycle is long, production cost is high, and due to the annealed thermal treatment of needs, plate surface quality is poor, easily bubbles, and easily produce the defects such as stain in follow-up enameling process.
ZL90102120.2 Chinese invention patent specification sheets discloses a kind of enamel sheet and manufacture method thereof, ZL00801729.8 Chinese invention patent specification sheets discloses one and has had good formability, resistance to blistering, the adhering continuous casting enamel sheet of anti-stain and vitreous enamel and manufacture method thereof, ZL01802486.6 Chinese invention patent specification sheets discloses a kind of processibility, ageing and outstanding enamel sheet and the manufacture method of glazing, but the method that remains employing hot rolling+cold rolling+annealing of recording in above-mentioned patent specification is produced enamel steel, effectively do not solve the existing a series of defects of early stage enamel steel.
CN101586210 discloses a kind of high strength enamel steel and production and burning thereof and has warded off technique, the chemical composition of this steel by weight percentage ratio is counted: C:0.01～0.12, Si≤0.03, Mn:0.50～1.00, P≤0.070, S≤0.015, Nb:0.020～0.050, Mo:0.05～0.30, Als:0.005～0.070, and surplus is Fe and inevitable impurity; This steel also meets 10Nb >=Mo, 0.30≤10Nb+Mo≤0.50 simultaneously.Although it has certain improvement to prior art, intensity increases, and puts into practice and shows, its enamel property is very not as one wishes, and therefore still some attends to one thing and lose sight of another this technology.
Be summed up, existing enamel is lower by the intensity of steel, and enamel adhesion property is poor, and high temperature resistant enamel firing performance deficiency, is limited by very large its application.
Summary of the invention
The preparation method who the object of the invention is to propose a kind of enamel steel, steel enamel tack prepared by the method is good, and strength ratio prior art increases.
For reaching this object, the present invention by the following technical solutions:
The preparation method of steel for a kind of enamel, the chemical composition of described steel is by weight percentage: C 0.04-0.08, Si 0.2-0.4, Mn 0.3-0.5, P≤0.030, S≤0.015, Ti 0.06-0.08, Ni0.40-0.60, Cr 0.30-0.50, Cu 0.06-0.08, and surplus is Fe and inevitable impurity; Described preparation technology comprises that desulfurizing iron, converter top bottom blowing, Argon processing, protective casting become slab, controlled rolling and controlled cooling to roll into hot-rolled sheet, described controlled rolling and controlled cooling rolls in hot-rolled sheet step: first by heating of plate blank to 1240-1280 ℃, soaking 2-3 hour, roughing start rolling temperature is 1160-1180 ℃, every time draft of roughing is 20-30%, accumulative total draft is 80-90%, and roughing end temp is 1000-1030 ℃; Finish rolling again, finish rolling start rolling temperature is 970-990 ℃, and last two percentage pass reductions are 12-20%, and finishing temperature is 870-890 ℃; Roll rear employing laminar flow cooling, speed of cooling is 15-25 ℃/s, and coiling temperature is 580-620 ℃, makes the hot-rolled sheet that thickness of slab is 1.5-2.5mm.
The invention has the advantages that:
1) the present invention is by the selection to chemical composition and the adjustment of content, except the conventional component of straight carbon steel, adjust enamel property and the mechanical property of steel by adding appropriate Ti, Ni, Cr and Cu, make the carbon content of steel unnecessary lower than 0.01%, thereby and above-mentioned alloying element coordinates, the mechanical properties such as the tensile strength of raising steel, its yield strength >=320MPa, tensile strength (Rm) >=410MPa, unit elongation (A) >=20%, can be extensively as the steel base of the enamel products such as kitchen tools, sanitary ware, household electrical appliances.
2) practice shows, enamel of the present invention is good by the enamel tack of steel, can adopt conventional method to carry out application of slip operation.
3) in preparation technology of the present invention, do not need to carry out decarburizing annealing processing, it is simple that production process becomes.
Embodiment
Embodiment mono-
The preparation method of steel for a kind of enamel, the chemical composition of described steel is by weight percentage: C 0.04, Si 0.4, Mn 0.3, P≤0.030, S≤0.015, Ti 0.08, Ni 0.40, Cr 0.50, Cu 0.06, and surplus is Fe and inevitable impurity; Described preparation technology comprises that desulfurizing iron, converter top bottom blowing, Argon processing, protective casting become slab, controlled rolling and controlled cooling to roll into hot-rolled sheet, described controlled rolling and controlled cooling rolls in hot-rolled sheet step: first by heating of plate blank to 1240 ℃, soaking 3 hours, roughing start rolling temperature is 1160 ℃, every time draft of roughing is 20-30%, accumulative total draft is 80-90%, and roughing end temp is 1030 ℃; Finish rolling again, finish rolling start rolling temperature is 970 ℃, and last two percentage pass reductions are 12-20%, and finishing temperature is 890 ℃; Roll rear employing laminar flow cooling, speed of cooling is 15 ℃/s, and coiling temperature is 620 ℃, makes the hot-rolled sheet that thickness of slab is 1.5mm.
Embodiment bis-
The preparation method of steel for a kind of enamel, the chemical composition of described steel is by weight percentage: C 0.08, Si 0.2, Mn 0.5, P≤0.030, S≤0.015, Ti 0.06, Ni 0.60, Cr 0.30, Cu 0.08, and surplus is Fe and inevitable impurity; Described preparation technology comprises that desulfurizing iron, converter top bottom blowing, Argon processing, protective casting become slab, controlled rolling and controlled cooling to roll into hot-rolled sheet, described controlled rolling and controlled cooling rolls in hot-rolled sheet step: first by heating of plate blank to 1280 ℃, soaking 2 hours, roughing start rolling temperature is 1180 ℃, every time draft of roughing is 20-30%, accumulative total draft is 80-90%, and roughing end temp is 1000 ℃; Finish rolling again, finish rolling start rolling temperature is 990 ℃, and last two percentage pass reductions are 12-20%, and finishing temperature is 870 ℃; Roll rear employing laminar flow cooling, speed of cooling is 25 ℃/s, and coiling temperature is 580 ℃, makes the hot-rolled sheet that thickness of slab is 2.5mm.
Embodiment tri-
The preparation method of steel for a kind of enamel, the chemical composition of described steel is by weight percentage: C 0.06, Si 0.3, Mn 0.4, P≤0.030, S≤0.015, Ti 0.07, Ni 0.50, Cr 0.40, Cu 0.07, and surplus is Fe and inevitable impurity; Described preparation technology comprises that desulfurizing iron, converter top bottom blowing, Argon processing, protective casting become slab, controlled rolling and controlled cooling to roll into hot-rolled sheet, described controlled rolling and controlled cooling rolls in hot-rolled sheet step: first by heating of plate blank to 1260 ℃, soaking 2.5 hours, roughing start rolling temperature is 1170 ℃, every time draft of roughing is 20-30%, accumulative total draft is 80-90%, and roughing end temp is 1015 ℃; Finish rolling again, finish rolling start rolling temperature is 980 ℃, and last two percentage pass reductions are 12-20%, and finishing temperature is 880 ℃; Roll rear employing laminar flow cooling, speed of cooling is 20 ℃/s, and coiling temperature is 600 ℃, makes the hot-rolled sheet that thickness of slab is 2.0mm.
Claims (1)
1. the preparation method of an enamel use steel, it is characterized in that, the chemical composition of described steel is by weight percentage: C 0.04-0.08, Si 0.2-0.4, Mn 0.3-0.5, P≤0.030, S≤0.015, Ti0.06-0.08, Ni 0.40-0.60, Cr 0.30-0.50, Cu 0.06-0.08, and surplus is Fe and inevitable impurity; Described preparation technology comprises that desulfurizing iron, converter top bottom blowing, Argon processing, protective casting become slab, controlled rolling and controlled cooling to roll into hot-rolled sheet, described controlled rolling and controlled cooling rolls in hot-rolled sheet step: first by heating of plate blank to 1240-1280 ℃, soaking 2-3 hour, roughing start rolling temperature is 1160-1180 ℃, every time draft of roughing is 20-30%, accumulative total draft is 80-90%, and roughing end temp is 1000-1030 ℃; Finish rolling again, finish rolling start rolling temperature is 970-990 ℃, and last two percentage pass reductions are 12-20%, and finishing temperature is 870-890 ℃; Roll rear employing laminar flow cooling, speed of cooling is 15-25 ℃/s, and coiling temperature is 580-620 ℃, makes the hot-rolled sheet that thickness of slab is 1.5-2.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210436207.4A CN103805877A (en) | 2012-11-03 | 2012-11-03 | Preparation method of steel applied to enamel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210436207.4A CN103805877A (en) | 2012-11-03 | 2012-11-03 | Preparation method of steel applied to enamel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103805877A true CN103805877A (en) | 2014-05-21 |
Family
ID=50703254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210436207.4A Pending CN103805877A (en) | 2012-11-03 | 2012-11-03 | Preparation method of steel applied to enamel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103805877A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112139699A (en) * | 2019-06-28 | 2020-12-29 | 宝山钢铁股份有限公司 | Welding wire with yield strength of 550MPa grade for enamel steel |
| CN115181902A (en) * | 2022-05-12 | 2022-10-14 | 马鞍山钢铁股份有限公司 | Cold-rolled low-alloy steel plate for double-sided enamel and preparation method thereof |
-
2012
- 2012-11-03 CN CN201210436207.4A patent/CN103805877A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112139699A (en) * | 2019-06-28 | 2020-12-29 | 宝山钢铁股份有限公司 | Welding wire with yield strength of 550MPa grade for enamel steel |
| CN112139699B (en) * | 2019-06-28 | 2022-06-28 | 宝山钢铁股份有限公司 | Welding wire with yield strength of 550MPa grade for enamel steel |
| CN115181902A (en) * | 2022-05-12 | 2022-10-14 | 马鞍山钢铁股份有限公司 | Cold-rolled low-alloy steel plate for double-sided enamel and preparation method thereof |
| CN115181902B (en) * | 2022-05-12 | 2023-08-25 | 马鞍山钢铁股份有限公司 | Cold-rolled low-alloy steel plate for double-sided enamel and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103451519B (en) | A kind of thickness is greater than cold rolling hot dipping steel plating and the production method thereof of 1.5mm bending and forming | |
| CN105316579B (en) | Thin hot rolled pickled steel plate and fabrication method thereof for water heater enamel liner | |
| CN105441795B (en) | A kind of LED lead frame low-carbon cold rolling steel plate and its production method | |
| CN102409235A (en) | High-strength cold rolling transformation induced plasticity steel plate and preparation method thereof | |
| CN103740990A (en) | Aluminum alloy strip for automobile heat insulation cover and manufacturing method thereof | |
| CN104928457A (en) | Method for producing high-ductility ferritic stainless steel band through furnace roll and continuous mill | |
| CN101787486B (en) | Baking-aging resistant colored steel plate/strip and manufacturing method thereof | |
| JP2012502186A (en) | Stainless steel, cold rolled strip made from this steel, and method for producing flat steel products from this steel | |
| CN106854729A (en) | A kind of phosphorous gap-free atom cold-rolling galvanization steel plate and its manufacture method | |
| CN103509996B (en) | The manufacture method of tensile strength 400MPa grade high-strength carbon manganese structure iron | |
| CN101586210B (en) | High strength enamel steel and producing technology and enamel firing technology thereof | |
| CN107815591A (en) | Hot-dip galvanizing sheet steel and preparation method thereof | |
| CN109554607A (en) | Cold rolling enamelled pressed steel and its manufacturing method with excellent scaling resistance and deep drawing quality | |
| CN103993147A (en) | Cold rolled steel plate and preparation method thereof | |
| CN110714165B (en) | Cold-rolled sheet for 320 MPa-level household appliance panel and production method thereof | |
| CN102912227A (en) | Soft tinning raw steel plate and manufacture method thereof | |
| CN103993227B (en) | A kind of cold-rolled steel sheet and preparation method thereof | |
| CN111690871B (en) | Hot-rolled steel plate for cold-rolled electro-galvanized steel plate and manufacturing method | |
| CN101921951B (en) | Low-aluminum-content and high-aging-resistance hot-rolling thin steel plate for cold formation and manufacturing method thereof | |
| CN103757534B (en) | A kind of cold-rolled steel sheet and production method thereof with good flange welding property | |
| CN102690938B (en) | Pilot scale production method of low-carbon Fe-Mn-Al-Si series TWIP (Twining Induced Plasticity) steel | |
| CN102676913B (en) | Cold-rolled steel strip for flux-cored wire and production method of cold-rolled steel strip | |
| CN103805877A (en) | Preparation method of steel applied to enamel | |
| CN107794445A (en) | Hot-dip galvanizing sheet steel and preparation method thereof | |
| CN103805837A (en) | Soft tin plate preparation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140521 |