CN102899560A - Steel plate used for glass lining and production method thereof - Google Patents
Steel plate used for glass lining and production method thereof Download PDFInfo
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- CN102899560A CN102899560A CN2012104081653A CN201210408165A CN102899560A CN 102899560 A CN102899560 A CN 102899560A CN 2012104081653 A CN2012104081653 A CN 2012104081653A CN 201210408165 A CN201210408165 A CN 201210408165A CN 102899560 A CN102899560 A CN 102899560A
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Abstract
The invention provides a steel plate used for a glass lining and a production method thereof. The steel plate comprises the following chemical components: 0.05%-0.15% of C, not more than 0.20% of Si, 0.50%-1.60% of Mn, not more than 0.025% of P, not more than 0.020% of S, 0.06%-0.18% of Ti, 0.005%-0.050% of Als, not more than 0.0030% of O, not more than 0.0060% of N and the balance of iron and inevitable impurities, wherein a ratio of Ti to C is 1.0-1.5. The production method of the steel plate comprises the steps of smelting, continuous casting, rolling and normalizing treatment, wherein the heating temperature of a casting blank is at 1180-1250 DEG C, two-stage rolling is adopted, the rolling temperature of a rough rolling stage is not less than 1100 DEG C, the rolling temperature of a finish rolling stage is at 920-1000 DEG C, the finish rolling temperature is at 900-840 DEG C, and the accumulated deformation quantity is not less than 60%; the normalizing temperature is at 920-960 DEG C, and the net thermal insulation time is 1.0-3.5 min/mm. According to the steel plate provided by the invention, through controlling the ratio of Ti to C to 1.0-1.5, the content of Ti is 0.06%-0.18%, the steel has good scale explosion prevention performance after lining burning, the lining burning frequency is reduced, the energy is saved, and the cost is saved for a user; after lining burning, the intensity level is stable, and a safe and reliable steel plate material is provided for manufacturing industry of glassed steel equipment.
Description
Technical field
The metallurgical low alloy hot rolling steel plate of the present invention field relates in particular to lass lining steel plate and manufacture method thereof.
Background technology
So-called lass lining refers to that the lass lining enamel that silicon content is high is applied to metal (iron and steel) surface, by the high temperature enamel firing, makes the enamel adherence in surface of steel plate.Therefore, the lass lining steel plate has had the two-fold advantage of the glazed chemical stability of class and metal strength.Exactly because the special performance of lass lining steel plate is so that the lass lining steel plate is widely used in the fields such as chemical industry, medicine, dyestuff, agricultural chemicals, organic synthesis, oil, food mfg and national defense industry, to replace expensive stainless steel and non-ferrous metal.
As the steel plate of the main manufactured materials of glass-lined equipment, its performance quality directly affects quality level and the work-ing life of end article, so developed countries all adopts steel plate special mostly, and corresponding standard of materials is arranged.Anshan iron and steel plant is the earliest enterprise of development and production lass lining usefulness steel of China, about 10 years from the eighties in last century to the nineties, develop a series of special-purpose steel grades for the manufacture of glass-lined equipment such as T06TiA, 09MnTi, 09MnTiNb, under historical conditions at that time, satisfied well market demand.Yet because state of arts at that time is relatively backward, the lumber recovery of these special products of producing is less than 70%, and cost is significantly risen, and has seriously restricted its popularizing in the glass-lined equipment industry.From 1987 to 1997 during the decade, very little in batches although Anshan iron and steel plant is kept the supply of this steel plate special always, can't fundamentally change China produces glass-lined equipment with general carbon steel situation.Through the epoch transition in more than 20 years, the smelting level of steel mill had tremendous progress on the one hand, and roll control level, quality control method have all obtained increasing substantially.The essence variation has occured in the general layout of China's lass lining industry on the other hand.Throughput, the standardization of whole industry all cannot be mentioned in the same breath, China is becoming the manufacturing center of lass lining chemical industry equipment, the steel consumption amount of whole lass lining industry has reached 200,000 tons, and product has begun in a large number to India, South East Asia outlet.But still using Q235A, Q235B, the material substitution such as Q235C, 20g, 20R steel in the industry at present.These substitute that material is not considered enamel property and the generation that causes the defectives such as squama is quick-fried, bubble, often need through repeatedly repeatedly enamel firing could obtain qualified goods.And these steel plate materialses intensity decrease behind the enamel firing repeatedly causes the shortcomings such as China's glass-lined equipment ubiquity production energy consumption is large, cost is high, quality is unstable, work-ing life is short.Because there is not steel plate special, the quality of the enameling glass product of China more and more becomes the focus of people's doubt, and the energy loss problem, the environmental protection Cost Problems that bring of enamel firing also becomes increasingly conspicuous repeatedly.
English nation in the Japan village, it is respectively patent No. 200780035777.X " the quick-fried property of anti-squama is good enamel sheet and manufacture method thereof significantly " that west village wise man waits three Chinese invention patents of people's application, its chemical composition mass percent is C:0.003～0.010%, Si:0.001～0.100%, Mn:0.03～1.30%, P :≤0.035%, S :≤0.08%, Nb:0.055～0.250%, O:0.005～0.085%, Al:0.0002～0.010%, below the N:0.0055%, surplus is made of Fe and inevitable impurity), (its chemical composition mass percent is below the C:0.010% to patent No. CN200680050708.1 " continuous casting enamel sheet and manufacture method thereof that scaling resistance is significantly excellent ", Mn:0.03～1.30%, below the Si:0.100%, below the Al:0.030%, below the N:0.0055%, below the P:0.035%, below the S:0.08%, O:0.005～0.085%, B:0.0003～0.0250%) and patent No. CN02821685.7 " enamel sheet and preparation method thereof ", its chemical composition mass percent is C:0.010% or still less, Mn:0.03～1.30%, Si:0.03% or still less, Al:0.020% or still less, N:0.0055% or still less, below the P:0.035%, S:0.025～0.08%.Wherein common ground is that steel plate C content is on the low side in patent No. 200780035777.X and the CN200680050708.1 patent of invention, and intensity is low behind the enamel firing, does not reach glass-lined equipment with the requirement of strength of material, has added again Nb element or B element simultaneously, makes the increase cost.Be that steel plate C content is on the low side equally in the patent No. CN02821685.7 patent of invention, its preparation method is that strand carries out cold rolling, anneal through after the hot rolling, and production process is many, and cost is high, and intensity is low behind the enamel firing, does not reach the requirement of strength that glass-lined equipment is used material.
Summary of the invention
The object of the invention is to overcome the problems referred to above and deficiency and a kind of glass-lined equipment steel plate special and manufacture method thereof are provided, this steel plate has good scaling resistance energy and good formability, strength level is stable behind the enamel firing, for the glass-lined equipment manufacturing provides a kind of safe and reliable steel plate materials.
For realizing the present invention, for the technical problem of present lass lining with the Plate Production existence, inventors have carried out a large amount of from several aspects such as alloying element screening and proportioning, process optimization and parameter selection, organization optimizations and the experimental study of system has finally been determined to satisfy the object of the invention alloying element proportioning and manufacturing process.
The present invention is achieved in that this lass lining is as follows by weight percentage with the composition of steel plate: C:0.05%～0.15%, Si≤0.20%, Mn:0.50%～1.60%, P :≤0.025%, S≤0.020%, Ti:0.06%～0.18%, Als:0.005%～0.050%, Ti/C:1.0～1.5, O≤0.0030%, N≤0.0060%, all the other are iron and inevitable impurity.
The present invention adds Ti in alloy, Ti/C is than being the important indicator that guarantees the lass lining performance, Ti/C 〉=1.0, make and occur having in a large number the carbide of chemically active Ti, the precipitation particles such as carbonitride of Ti in the microtexture of steel plate, enough hydrogen traps of catching can be provided, behind the inhibition enamel firing squama occur quick-fried; Slab quality problem when the Ti too high levels can cause continuous casting, the span of control of control Ti/C ratio is limited to 1.0～1.5.
Composition Design of the present invention be the reasons are as follows:
(1) C improves the most economical effective element of intensity, but the C too high levels can worsen welding property and the cold forming capability of steel.And C content is controlled at below 0.15%, can avoid the generation of gas hole defect.Therefore be chosen between 0.05%～0.15%.
(2) the Si element can generate oxide film in advance in the enamel firing process, hinders the generation of adhesive layer between steel plate and enamel for glassed steel, therefore its upper limit is limited Si≤0.20%.
(3) Mn carries high-intensity effective element, and cost is very cheap, among the present invention with it as main interpolation element, it is limited between 0.50%～1.60%.
(4) P does not have disadvantageous effect to enamel property.If but its too high levels can reduce the welding property of steel.Therefore controlling its upper content limit is 0.025%.
(5) S easily is mingled with Mn formation MnS, and the performance of steel is had a negative impact, and is no more than 0.020% so control its content.
(6) Ti is the important forming element as the precipitation particles of hydrogen trap.As previously mentioned, its content should be 1～1.5 times of C.Under this prerequisite, be the necessary surface-area of the hydrogen trap that guarantee to form, Ti content should be higher than 0.06%.But can bring bad impact to sheet billet continuous casting when being higher than 0.18%.Therefore guaranteeing Ti/C than under the prerequisite between 1～1.5, determining that its content is 0.06%～0.18%.
(7) Als is deoxidation products, and is clean for making steel, should carry out the Al deoxidation, and Als can be enough to guarantee the cleanliness factor of steel 0.005%～0.050% the time, and Als surpasses 0.060% increases the cost of steel.Therefore control Als content between 0.005%～0.050%.
Easy and Ti formation TiN when (8) residual element N content is higher, particle is larger, and the inclusion rank is also high.The TiN that forms generally separates out at crystal boundary, and the ductility of steel is degenerated.Therefore control the upper limit of N content≤0.0060%.
(9) oxygen and Ti have stronger avidity, easily form titanium oxide.Easily produce nozzle clogging during casting, therefore control the oxygen level upper limit≤0.0030%.
Lass lining of the present invention may further comprise the steps with the manufacture method of steel plate: smelt-＞continuous casting-＞rolling-＞normalizing treatment.It is characterized in that:
(1) rolling technology: for making the surface-area maximization as the precipitated phase of hydrogen trap, and make Ti precipitation particles Hui Rong in the strand in steel as far as possible, slab heating temperature is 1180～1250 ° of C, when 1180 ° of C, Ti precipitation particles most of Hui Rong in the strand is when 1250 ° of C, Ti precipitation particles in the steel returns molten degree near saturated, after Heating temperature surpassed 1250 ° of C, to the infringement increase of heating installation, the scaling loss of steel also increased; Adopt two stage rolling, rough rolling step rolling temperature 〉=1100 ° C, finish rolling stage start rolling temperature are 920～1000 ° of C, the finish rolling start rolling temperature is higher than 1000 ° of C, and finished product crystal grain is difficult for refinement, and the refined crystalline strengthening effect is bad, be lower than 920 ° of C, then increase the load of finishing stand, easily cause accident; Finishing temperature is 900～840 ° of C, avoids in the two-phase region the rolling mill load that makes excessive, and it is interval to avoid the restive texturing temperature of template, and can reduce the vertical lateral performance difference of steel plate, and finishing temperature is higher than 900 ° of C, and grain refining is not enough, affects strengthening effect; Cumulative deformation 〉=60%.
(2) normalizing treatment technique: roll rear steel plate and carry out normalizing treatment, 920～960 ° of C of normalizing temperature, clean soaking time 1.0～3.5min/mm.Roll the attitude steel plate organize thicker, and Ti separate out insufficiently, so steel plate need take normalizing treatment after rolling, all even thinning microstructure is adjusted the precipitation strength amplitude.
Beneficial effect of the present invention is: 1) steel plate of the present invention by control Ti/C ratio be 1.0～1.5, Ti content 0.06～0.18%, guaranteed that steel plate has good scaling resistance energy behind enamel firing.Reduce the enamel firing number of times, save energy is for the user saves cost.2) this steel plate has good formability and scaling resistance energy.Strength level is stable behind the enamel firing, for the glass-lined equipment manufacturing provides a kind of safe and reliable steel plate materials.
Description of drawings
Fig. 1 is the microstructure of the embodiment of the invention 1 steel plate.
Embodiment
The present invention is further illustrated below by embodiment.
The embodiment of the invention is smelted with rolling according to the component proportion of technical scheme.The smelting composition of embodiment of the invention steel sees Table 1.The processing parameter of embodiment of the invention steel sees Table 2.The performance of embodiment of the invention steel sees Table 3.Mechanical property behind the embodiment of the invention 1 simulation enamel firing sees Table 4.
Lass lining of the present invention may further comprise the steps with the manufacture method of steel plate, comprise smelting-＞continuous casting-＞rolling-＞normalizing treatment.
Continuously cast bloom is heated to 1180～1250 ° of C, guarantees to obtain tiny austenite crystal, and can have a considerable amount of Ti to dissolve in austenite.Adopt two stage rolling, rough rolling step rolling temperature 〉=1100 ° C, finish rolling stage start rolling temperature are that 920～1000 ° of C, finishing temperature are 900 ~ 840 ° of C, cumulative deformation 〉=60%.Roll rear steel plate and carry out normalizing treatment, 920～960 ° of C of normalizing temperature, clean soaking time 1.0～3.5min/mm.
(1) the smelting ingredient w t% of embodiment of the invention steel
(2) processing parameter of embodiment of the invention steel
3) performance of embodiment of the invention steel
(4) mechanical property behind the embodiment 1 simulation enamel firing
| The enamel firing number of times | ReL，N/mm 2 | Rm，N/mm 2 | A，% |
| 7 | 325 | 425 | 35.0 |
| 9 | 325 | 430 | 35.5 |
| 11 | 330 | 435 | 32.5 |
| 13 | 320 | 435 | 40.0 |
| 15 | 330 | 435 | 34.0 |
| 17 | 335 | 440 | 37.0 |
Claims (2)
1. lass lining steel plate, it is characterized in that its chemical component weight per-cent is: C:0.05%～0.15%, Si≤0.20%, Mn:0.50%～1.60%, P :≤0.025%, S≤0.020%, Ti:0.06%～0.18%, Als:0.005%～0.050%, Ti/C:1.0～1.5, O≤0.0030%, N≤0.0060%, all the other are iron and inevitable impurity.
2. the described lass lining of a claim 1 is with the manufacture method of steel plate, comprise smelting, continuous casting, rolling and normalizing treatment operation, it is characterized in that: (1) is rolling: slab heating temperature is 1180～1250 ℃, adopt two stage rolling, rough rolling step rolling temperature 〉=1100 ℃, finish rolling stage start rolling temperature is 920～1000 ℃, finishing temperature is 900～840 ℃, the normalizing treatment of cumulative deformation 〉=60%(2): 920～960 ℃ of normalizing temperatures, clean soaking time 1.0～3.5min/mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210408165.3A CN102899560B (en) | 2012-10-23 | 2012-10-23 | A kind of lass lining steel plate and manufacture method thereof |
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| CN201210408165.3A CN102899560B (en) | 2012-10-23 | 2012-10-23 | A kind of lass lining steel plate and manufacture method thereof |
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| CN102899560A true CN102899560A (en) | 2013-01-30 |
| CN102899560B CN102899560B (en) | 2016-03-02 |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103540845A (en) * | 2013-11-07 | 2014-01-29 | 武汉钢铁(集团)公司 | Hot-rolled thin plate enamelled steel with yield strength of 330 MPa and manufacturing method thereof |
| CN106282811A (en) * | 2015-05-28 | 2017-01-04 | 鞍钢股份有限公司 | A kind of high intensity enamel hot rolled steel plate and manufacture method thereof |
| CN106811705A (en) * | 2015-12-02 | 2017-06-09 | 鞍钢股份有限公司 | A kind of excellent enamel steel plate of fish scaling resistance and its manufacture method |
| CN107099737A (en) * | 2017-06-07 | 2017-08-29 | 唐山钢铁集团有限责任公司 | A kind of enamel high-strength medium plate and its production method |
| CN107254629A (en) * | 2017-06-10 | 2017-10-17 | 太仓市华强玻璃钢五金厂 | A kind of resin glass steel |
| CN107267888A (en) * | 2017-06-10 | 2017-10-20 | 太仓市华强玻璃钢五金厂 | A kind of high performance fiberglass |
| CN107779762A (en) * | 2016-08-30 | 2018-03-09 | 宝山钢铁股份有限公司 | A kind of enamel steel plate and its manufacture method with excellent high temperature deformation performance |
| CN107794460A (en) * | 2016-08-30 | 2018-03-13 | 宝山钢铁股份有限公司 | A kind of enamel high-strength steel sheet and its manufacture method with excellent two-sided application of slip performance |
| CN108396235A (en) * | 2017-02-05 | 2018-08-14 | 鞍钢股份有限公司 | A kind of enamel matrix hot rolling steel plate and its manufacturing method |
| 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 |
| CN110066960A (en) * | 2018-01-23 | 2019-07-30 | 宝山钢铁股份有限公司 | A kind of high-intensitive enamel steel and its manufacturing method with excellent scaling resistance |
| CN110343964A (en) * | 2019-07-30 | 2019-10-18 | 马鞍山钢铁股份有限公司 | A kind of yield strength is greater than the enamel cold-rolled steel sheet and its production method of 500MPa |
| CN111411305A (en) * | 2020-04-21 | 2020-07-14 | 五矿营口中板有限责任公司 | High-toughness high-Ti low-alloy steel with thick glass lining and good glass lining performance and manufacturing method thereof |
| CN115354235A (en) * | 2022-09-30 | 2022-11-18 | 武汉钢铁有限公司 | High-surface high-precision high-strength enamel steel and production method thereof |
| CN115595499A (en) * | 2022-08-29 | 2023-01-13 | 邯郸钢铁集团有限责任公司（Cn） | High-strength hot-rolling acid-washing enameled steel strip with excellent fish scaling resistance and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1966753A (en) * | 2005-11-16 | 2007-05-23 | 鞍钢股份有限公司 | Steel plate for hot-rolled double-side enamel and method for producing same |
-
2012
- 2012-10-23 CN CN201210408165.3A patent/CN102899560B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1966753A (en) * | 2005-11-16 | 2007-05-23 | 鞍钢股份有限公司 | Steel plate for hot-rolled double-side enamel and method for producing same |
Non-Patent Citations (1)
| Title |
|---|
| 王东明等: "搪玻璃压力容器用Q245GT钢板的应用性能研究", 《中国化工装备》, no. 2, 30 April 2009 (2009-04-30) * |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103540845A (en) * | 2013-11-07 | 2014-01-29 | 武汉钢铁(集团)公司 | Hot-rolled thin plate enamelled steel with yield strength of 330 MPa and manufacturing method thereof |
| CN106282811A (en) * | 2015-05-28 | 2017-01-04 | 鞍钢股份有限公司 | A kind of high intensity enamel hot rolled steel plate and manufacture method thereof |
| CN106811705A (en) * | 2015-12-02 | 2017-06-09 | 鞍钢股份有限公司 | A kind of excellent enamel steel plate of fish scaling resistance and its manufacture method |
| CN107779762B (en) * | 2016-08-30 | 2019-07-23 | 宝山钢铁股份有限公司 | A kind of enamel steel plate and its manufacturing method with excellent high temperature deformation performance |
| CN107794460B (en) * | 2016-08-30 | 2019-07-23 | 宝山钢铁股份有限公司 | A kind of enamel high-strength steel sheet and its manufacturing method with excellent two-sided application of slip performance |
| CN107779762A (en) * | 2016-08-30 | 2018-03-09 | 宝山钢铁股份有限公司 | A kind of enamel steel plate and its manufacture method with excellent high temperature deformation performance |
| CN107794460A (en) * | 2016-08-30 | 2018-03-13 | 宝山钢铁股份有限公司 | A kind of enamel high-strength steel sheet and its manufacture method with excellent two-sided application of slip performance |
| CN108396235A (en) * | 2017-02-05 | 2018-08-14 | 鞍钢股份有限公司 | A kind of enamel matrix hot rolling steel plate and its manufacturing method |
| 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 |
| CN107099737A (en) * | 2017-06-07 | 2017-08-29 | 唐山钢铁集团有限责任公司 | A kind of enamel high-strength medium plate and its production method |
| CN107254629A (en) * | 2017-06-10 | 2017-10-17 | 太仓市华强玻璃钢五金厂 | A kind of resin glass steel |
| CN107267888A (en) * | 2017-06-10 | 2017-10-20 | 太仓市华强玻璃钢五金厂 | A kind of high performance fiberglass |
| CN110066960A (en) * | 2018-01-23 | 2019-07-30 | 宝山钢铁股份有限公司 | A kind of high-intensitive enamel steel and its manufacturing method with excellent scaling resistance |
| CN110343964A (en) * | 2019-07-30 | 2019-10-18 | 马鞍山钢铁股份有限公司 | A kind of yield strength is greater than the enamel cold-rolled steel sheet and its production method of 500MPa |
| CN111411305A (en) * | 2020-04-21 | 2020-07-14 | 五矿营口中板有限责任公司 | High-toughness high-Ti low-alloy steel with thick glass lining and good glass lining performance and manufacturing method thereof |
| CN115595499A (en) * | 2022-08-29 | 2023-01-13 | 邯郸钢铁集团有限责任公司（Cn） | High-strength hot-rolling acid-washing enameled steel strip with excellent fish scaling resistance and preparation method thereof |
| CN115595499B (en) * | 2022-08-29 | 2023-10-31 | 邯郸钢铁集团有限责任公司 | High-strength hot-rolled pickled enamel steel strip with excellent anti-scaling performance and preparation method thereof |
| CN115354235A (en) * | 2022-09-30 | 2022-11-18 | 武汉钢铁有限公司 | High-surface high-precision high-strength enamel steel and production method thereof |
| CN115354235B (en) * | 2022-09-30 | 2023-01-24 | 武汉钢铁有限公司 | High-surface high-precision high-strength enamel steel and production method thereof |
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