CN109706377A - A kind of the think gauge PHS1500 steel and its production technology of suitable hot forming processing - Google Patents
A kind of the think gauge PHS1500 steel and its production technology of suitable hot forming processing Download PDFInfo
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- CN109706377A CN109706377A CN201910154465.5A CN201910154465A CN109706377A CN 109706377 A CN109706377 A CN 109706377A CN 201910154465 A CN201910154465 A CN 201910154465A CN 109706377 A CN109706377 A CN 109706377A
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Abstract
A kind of the think gauge PHS1500 steel and its production technology of suitable hot forming processing, wherein by percentage to the quality, chemical component includes C:0.25~0.29% to hot forming steel；Mn:0.1~1.5%；Si: less than 0.8%；Al: less than 0.5%；Cr:0.2~0.4%；Mo:0.1~0.5%；Ti: less than 0.1%；B:0.001~0.005%；P:0.01~0.03%；Surplus is Fe and inevitable field trash, and the production technology of the PHS1500 steel includes following process: molten iron pretreatment → converter smelting → external refining → continuous casting → hot rolling heating → roughing, finish rolling → control cool down → batches → uncoiling → pickling or bead → hot press-formed.
Description
Technical field
The present invention relates to metallurgical technology fields, and in particular to a kind of think gauge PHS1500 steel of suitable hot forming processing and
Its production technology.
Background technique
Solve the effective measures of automobile product energy-saving and environmental protection and sustainable development first is that reducing automobile itself matter
Amount, therefore body lightening has become the important subject and target of current automotive light weight technology technical field.Automobile at present
For the raw material that product uses still based on steel material, hot forming has intensity high, forming property is good because of its hot forming
Advantage is widely used in the components such as vehicle body rear bumper, ABC column, roof components, floor tunnel, inner plate of car door and collision prevention girders.
The principle of hot forming techniques is high strength steel heating to be made its austenitizing, then the plate of heat is sent into band cooling system
The stamping die internal shaping of system, while quenched to it in mold using cooling system, steel plate materials are from austenite structure
It is transformed into martensitic structure, obtains the steel plate of superhigh intensity；Compared with cold forming techniques, has and eliminate springback influence；Drip molding
Precision height and high-quality；The minibus and overall security of vehicle body is greatly improved；Steel plate, which is thinned, to be realized drop weight and saves consumptive material etc.
Advantage.
Hot forming steel making part process, after needing that tablet is first heated to austenitizing, passes through mechanical arm or machine
Tool hand again by heat plate be sent into the stamping die internal shaping with cooling system, while in mold using cooling system to its into
Row quenching, steel plate materials are transformed into martensitic structure from austenite structure, and so that part is reached higher-strength, (tensile strength is greater than
1500MPa).Usual situation, hot forming steel carry out drop stamping using 2.5mm or less specification product and prepare part, but with heat at
The maturation of shape technology, think gauge product also gradually begin to use, such as bumper outside crossbeam and lorry, hot forming steel thickness by
It gradually improves to 3.5mm~6.5mm；Thermoformed parts need to meet two conditions to obtain full martensitic structure: first, have
Enough harden ability ensures that the practical cooling rate of punching course central part is greater than the Critical cooling speed of material, i.e. guarantee center portion can obtain
Martensite, traditional PHS1500 rank Critical cooling speed are about 27 DEG C/s；Second, Part temperature is reduced to martensite point hereinafter, this is needed
Part amount of heat is taken away, thickness increases, and heat increases, and punching press difficulty also increases.
Traditional PHS1500 heating temperature is 930 DEG C, and press temperature is greater than 780 DEG C, and 390 DEG C of Martensite temperature, thickness increases
It will lead to the heat that punching course need to be taken away to increase, center portion harden ability deficiency problem shows, and then causes edge and core structure
It is inconsistent, strength reduction, toughness decline, punching parts failure.
Summary of the invention
Technical assignment of the invention is to be directed to the above the deficiencies in the prior art, and provide a kind of thickness of suitable hot forming processing
Specification PHS1500 steel and its production technology.
One aspect of the present invention provides a kind of think gauge PHS1500 steel of suitable hot forming processing, by percentage to the quality,
Chemical component includes C:0.25~0.29%；Mn:0.1~1.5%；Si: less than 0.8%；Al: less than 0.5%；Cr:0.2~
0.4%；Mo:0.1~0.5%；Ti: less than 0.1%；B:0.001~0.005%；P:0.01~0.03%；Surplus is for Fe and not
It can avoid field trash.
Further, the PHS1500 steel with a thickness of 6.5mm and following.
Further, the critical cooling rate of the PHS1500 steel is 10 DEG C/s.
Another aspect of the present invention provides a kind of production technology of the think gauge PHS1500 steel of suitable hot forming processing, packet
Include following process: molten iron pretreatment → converter smelting → external refining → continuous casting → hot rolling heating → roughing, finish rolling → control are cold
But → batch → uncoiling → hot press-formed；Wherein hot press-formed technique includes following operation:
(1) 850~900 DEG C of heating temperature, 5~10min of soaking time；
(2) temperature is greater than 720 DEG C when punching press；
(3) increase mold cooling capacity, its cooling rate is made to be greater than 10 DEG C/s.
Further, during external refining, alloying sequence is Si-Mn-Cr-Ti-B, and Al can be added with slagging process.
Further, hot rolling heating temperature is 1200~1300 DEG C, 1200~1280 DEG C of target tapping temperature；Finish to gauge temperature
Degree: 850~910 DEG C；Coiling temperature: 650~720 DEG C.
Further, billet surface rusty scale is removed using the method for pickling or shot-peening after uncoiling process, then carries out drop stamping
Forming.
Usual PHS1500 steel, i.e. 22MnB5 ingredient are as follows: C:0.20~0.25%；Mn:0.1~1.5%；Si: less than
0.8%；Al: less than 0.5%；Ti: less than 0.1%；B: it is not less than 0.001%；Surplus is Fe and inevitable field trash, is not added
Add the microalloys such as Cr and Mo.
The present invention carries out technological improvement on traditional 22MnB5 base steel plinth, improves C content, adds Mo and Cr element, increases P
Content etc. is comprehensive to improve material harden ability and intensity.Wherein, C, Mo and Cr element can significantly improve material harden ability, and reduction is faced
Boundary's cooling velocity is to 10 DEG C/s, while Mo can postpone high temperature ferrite transformation, and heating temperature and press temperature are dropped
Low about 50 DEG C, and because steel grade addition B improves harden ability, increase P content in steel on this basis, it is strong to can effectively improve material
Degree ensures the requirement for meeting 1500MPa rank.
Secondly, reducing heating temperature and press temperature, the total heat for taking away mold under the premise of not undergoing phase transition before stamping
Amount reduces, and improves cooling efficiency, help to obtain full martensitic structure, and to improving, thermoformed parts comprehensive performance is advantageous.This hair
It is bright to solve the problems, such as that think gauge 1500MPa grades of hot press-formed steel hardenability of production not enough causes intensity insufficient, guarantee 6.5mm
And following think gauge hot forming steel can stamp out qualified parts on existing.
Detailed description of the invention
Fig. 1 tradition 22MnB5 steel hot process window；
Fig. 2 think gauge PHS1500 steel hot process window of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, is not used to limit
The fixed present invention.
A kind of think gauge PHS1500 steel of suitable hot forming processing, by percentage to the quality, chemical component includes C:
0.25~0.29%；Mn:0.1~1.5%；Si: less than 0.8%；Al: less than 0.5%；Cr:0.2~0.4%；Mo:0.1~
0.5%；Ti: less than 0.1%；B:0.001~0.005%；P:0.01~0.03%；Surplus is Fe and inevitable field trash.
Its technological process of production are as follows: molten iron pretreatment → converter smelting → external refining → continuous casting → (2300 hot rolling) heating
→ roughing, finish rolling → control cool down → batches → uncoiling → pickling or bead → product inspection → factory；Specifically include as
Lower step:
One, it makes steel
1, material process
It pre-processes into furnace S≤0.003%, scratches clean slag；Using fine fodder steel scrap.
2, ladle process
It is required that red tank is by steel；Ensure permeability of ladle, the certainly property poured；Ladle is cleaned without residual steel, residue；Ladle use will consider
Feed calcium.
3, converter procedure
Converter catch carbon hit at first time avoids a little blowing；Tapping uses Gao Meng, ferrosilicon, molybdenum-iron, high-chromium alloy；Steel before tapping
Packet argon gas purging, control tapping hole avoid diffusing, and ladle Als is by 0.005~0.015% control；It is required that ladle N≤25ppm.
4, refining procedure
It is required that LF treatment process keeps micro-positive pressure, strict control LF increases N, it is desirable that increases N amount≤10ppm；LF is using active stone
Ash, fluorite make the reducing slag of good fluidity, and strict control Argon intensity avoids molten steel exposed as far as possible；The molten boron control of acid: can be de-
The alloying of aluminium and other compositions is carried out during S, it is desirable that carry out Ti Alloying after de- S, using silicon-calcium wire Calcium treatment, most
Carried out afterwards with boron line or ferro-boron boron alloyed, soft blow argon >=10min after boron line or ferro-boron are added strictly avoids molten steel exposed.It closes
Aurification sequence is Si-Mn-Cr-Ti-B, and Al can be added with slagging process；Refining front and back takes gas sample to do N content analysis.
5, continuous casting working procedure
Whole process carries out molding casting.It opens using being wrapped in argon gas purging before pouring, casting process accomplishes that no molten steel is exposed, stringent to control
N is inhaled at the mouth of a river processed, and control increases N≤5ppm；Using cinder inclusion in high alkalinity, so as to the removal of steel inclusion；Steel pouring process investment is soft
Press function；Steel pouring process keeps permanent pulling rate；The middle packet degree of superheat is by 15~30 DEG C of controls；Middle packet and crystallization are taken when 90t more than big packet
Device gas sample does N content analysis；Slab optimizing incision, 7.0~7.5m of length.
Two, hot rolling
1, slab and heating region
1200~1300 DEG C of heating temperature, 1200~1280 DEG C of target tapping temperature.Heating furnace oven cavity atmosphere is controlled, is reduced
The generation of slab iron scale guarantees that heating temperature is uniform.
2, famine rolls, finish rolling, batches region
Waste mill train time selection 3+3 scheme control；The sharing of load of finish rolling model is carried out, guarantees rolling stability；Finish to gauge temperature
Degree: 850~910 DEG C；Coiling temperature: 650~720 DEG C, refrigerating mode is using the interval type of cooling.Guarantee finish to gauge, coiling temperature
Accurate control；According to the actual conditions of belt steel surface, small de-scaling after selective investment F1, F2 machine；It optimizes and revises between rack
The control of cooling water inflow.
Three, sour technique is washed
Surface Rust is removed using the method for pickling, pickling temperature is 70~85 DEG C, pickling speed >=120m/min.
Four, hot press-formed technique
850~900 DEG C of heating temperature, 5~10min of soaking time；
The parts transfer time can suitably be postponed, temperature is greater than 720 DEG C when punching press；
Increase mold cooling capacity, water cooling mold cooling water flow is adjusted to maximum value, its cooling rate is made to be greater than 10 DEG C/s
Reach critical cooling rate requirement, reduce the influence of strain-induced transformation, solves the problems, such as hardness unevenness.
Embodiment 1
The chemical component for smelting gained PHS1500 steel part is C:0.26%；Mn:1.2%；Si:0.6%；Al:
0.2%；Cr:0.2%；Mo:0.4%；Ti:0.07%；B:0.002%；P:0.01%；Surplus is Fe and is unavoidably mingled with
Object.
Hot rolling heating temperature is 1220 DEG C, 1200 DEG C of target tapping temperature；Finishing temperature: 860 DEG C；Coiling temperature: 650
℃；During hot press-formed, 850 DEG C of heating temperature, soaking time 5min；725 DEG C of press temperature；Part thickness is 5mm.
Embodiment 2
The chemical component for smelting gained PHS1500 steel part is C:0.27%；Mn:0.8%；Si:0.4%；Al:
0.1%；Cr:0.3%；Mo:0.3%；Ti:0.05%；B:0.003%；P:0.02%；Surplus is Fe and is unavoidably mingled with
Object.
1250 DEG C of hot rolling heating temperature, 1240 DEG C of target tapping temperature；880 DEG C of finishing temperature；690 DEG C of coiling temperature；Heat
In stamping process, 870 DEG C of heating temperature, soaking time 7min；730 DEG C of press temperature, part thickness 4mm.
Embodiment 3
The chemical component for smelting gained PHS1500 steel part is C:0.28%；Mn:0.2%；Si:0.2%；Al:
0.4%；Cr:0.4%；Mo:0.1%；Ti:0.03%；B:0.004%；P:0.03%；Surplus is Fe and is unavoidably mingled with
Object；
Hot rolling heating temperature is 1300 DEG C, 1280 DEG C of target tapping temperature；Finishing temperature: 900 DEG C；720 DEG C of coiling temperature；
During hot press-formed, 880 DEG C of heating temperature, soaking time 8min；740 DEG C of press temperature；Part thickness is 6mm.
Above embodiments steel part tensile strength is all satisfied the requirement of 1500MPa rank.
Traditional 22MnB5 and think gauge PHS1500 steel part drop stamping process window of the present invention are as shown in Figure 1, 2:
Fig. 1 is the continuous cooling transformation (CCT) curve of tradition 22MnB5, and wherein dash area is its drop stamping cooling technique window,
It can be seen that the critical cooling rate of the cooling window of Fig. 1 is 30 DEG C/s, Fig. 2 is think gauge PHS1500 steel of the present invention
The continuous cooling transformation (CCT) curve of hot press-formed steel, the critical of cooling window are cooled to 10 DEG C/s, that is, of the present invention
PHS1500 steel have broader process window, can be obtained martensitic structure under lower cooling rate.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (7)
1. a kind of think gauge PHS1500 steel of suitable hot forming processing, it is characterised in that: by percentage to the quality, chemistry at
Dividing includes C:0.25~0.29%；Mn:0.1~1.5%；Si: less than 0.8%；Al: less than 0.5%；Cr:0.2~0.4%；
Mo:0.1~0.5%；Ti: less than 0.1%；B:0.001~0.005%；P:0.01~0.03%；Surplus is for Fe and unavoidably
Field trash.
2. a kind of think gauge PHS1500 steel of suitable hot forming processing according to claim 1, it is characterised in that: described
PHS1500 steel with a thickness of 6.5mm and following.
3. a kind of think gauge PHS1500 steel of suitable hot forming processing according to claim 1, it is characterised in that: described
The critical cooling rate of PHS1500 steel is 10 DEG C/s.
4. a kind of production technology of the think gauge PHS1500 steel of suitable hot forming processing according to claim 1, including such as
Lower process: molten iron pretreatment → converter smelting → external refining → continuous casting → hot rolling heating → roughing, finish rolling → control is cooling →
Batch → uncoiling → hot press-formed；It is characterized by: wherein hot press-formed technique includes following operation:
1) 850~900 DEG C of heating temperature, 5~10min of soaking time；
2) temperature is greater than 720 DEG C when punching press；
3) increase mold cooling capacity, its cooling rate is made to be greater than 10 DEG C/s.
5. a kind of production technology of the think gauge PHS1500 steel of suitable hot forming processing according to claim 4, feature
Be: during the external refining, alloying sequence is Si-Mn-Cr-Ti-B, and Al can be added with slagging process.
6. a kind of production technology of the think gauge PHS1500 steel of suitable hot forming processing according to claim 4, feature
Be: hot rolling heating temperature is 1200~1300 DEG C, 1200~1280 DEG C of target tapping temperature；Finishing temperature: 850~910 DEG C；
Coiling temperature: 650~720 DEG C.
7. a kind of production technology of the think gauge PHS1500 steel of suitable hot forming processing according to claim 4, feature
It is: using the method for pickling or shot-peening removal billet surface rusty scale after uncoiling process, then carries out hot press-formed.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112725696A (en) * | 2020-12-21 | 2021-04-30 | 本钢板材股份有限公司 | Production method of low-carbon low-alloy boron-containing structural steel |
| CN113755758A (en) * | 2021-09-03 | 2021-12-07 | 本钢板材股份有限公司 | 8 mm-thick hot stamping steel prepared by adding cerium microalloy and hot stamping process thereof |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031456A (en) * | 2009-09-30 | 2011-04-27 | 鞍钢股份有限公司 | Steel plate for stamping and quenching and thermoforming method of steel plate |
| CN102199732A (en) * | 2010-03-25 | 2011-09-28 | 宝山钢铁股份有限公司 | Boron containing steel plate for heat treatment and manufacturing method thereof |
| CN102212742A (en) * | 2011-05-16 | 2011-10-12 | 马鸣图 | Hot-stamping automobile part with flexibly-distributed intensity and control method thereof |
| CN103614640A (en) * | 2013-12-12 | 2014-03-05 | 马鸣图 | High-temperature oxidation-resistant steel for non-coating hot stamping |
| CN104195443A (en) * | 2014-05-19 | 2014-12-10 | 首钢总公司 | High-flexural-behavior hot-formed steel used for automobiles and manufacturing method thereof |
| CN105283573A (en) * | 2013-06-11 | 2016-01-27 | 新日铁住金株式会社 | Hot-stamped product and process for producing hot-stamped product |
| CN105543685A (en) * | 2015-12-25 | 2016-05-04 | 本钢板材股份有限公司 | Hot stamping forming steel board for restraining falling off of oxide layer in hot stamping process and production method thereof |
| CN106119692A (en) * | 2016-08-24 | 2016-11-16 | 武汉钢铁股份有限公司 | By the tensile strength of medium thin slab Direct Rolling >=1500MPa hot forming steel and production method |
| CN106399837A (en) * | 2016-07-08 | 2017-02-15 | 东北大学 | Steel for hot stamping forming, hot stamping forming process and hot stamping forming component |
| CN106702278A (en) * | 2017-01-20 | 2017-05-24 | 本钢板材股份有限公司 | Hot punching forming steel plate production method capable of controlling peeling off of oxidized iron sheet without coating |
| CN107427889A (en) * | 2015-03-31 | 2017-12-01 | 新日铁住金株式会社 | Drop stamping steel plate and its manufacture method and heat stamping and shaping body |
| CN107641759A (en) * | 2017-09-13 | 2018-01-30 | 武汉钢铁有限公司 | Method based on CSP flows production Thin Specs hot forming steel |
| CN108374127A (en) * | 2018-04-28 | 2018-08-07 | 育材堂（苏州）材料科技有限公司 | Hot press-formed steel, hot press-formed technique and hot press-formed component |
| CN108411202A (en) * | 2018-04-03 | 2018-08-17 | 本钢板材股份有限公司 | A kind of think gauge cold-rolled biphase steel and preparation method thereof |
| CN108411195A (en) * | 2018-03-27 | 2018-08-17 | 本钢板材股份有限公司 | A kind of the hot forming steel plate and preparation method of cold environment punching production |
| CN108546876A (en) * | 2018-05-07 | 2018-09-18 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of hot rolled steel plate and preparation method thereof |
| CN108754319A (en) * | 2018-06-08 | 2018-11-06 | 武汉钢铁有限公司 | Using the tensile strength >=1800MPa grades of hot forming steel and method of the production of ESP producing lines |
-
2019
- 2019-03-01 CN CN201910154465.5A patent/CN109706377A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031456A (en) * | 2009-09-30 | 2011-04-27 | 鞍钢股份有限公司 | Steel plate for stamping and quenching and thermoforming method of steel plate |
| CN102199732A (en) * | 2010-03-25 | 2011-09-28 | 宝山钢铁股份有限公司 | Boron containing steel plate for heat treatment and manufacturing method thereof |
| CN102212742A (en) * | 2011-05-16 | 2011-10-12 | 马鸣图 | Hot-stamping automobile part with flexibly-distributed intensity and control method thereof |
| CN105283573A (en) * | 2013-06-11 | 2016-01-27 | 新日铁住金株式会社 | Hot-stamped product and process for producing hot-stamped product |
| CN103614640A (en) * | 2013-12-12 | 2014-03-05 | 马鸣图 | High-temperature oxidation-resistant steel for non-coating hot stamping |
| CN104195443A (en) * | 2014-05-19 | 2014-12-10 | 首钢总公司 | High-flexural-behavior hot-formed steel used for automobiles and manufacturing method thereof |
| CN107427889A (en) * | 2015-03-31 | 2017-12-01 | 新日铁住金株式会社 | Drop stamping steel plate and its manufacture method and heat stamping and shaping body |
| CN105543685A (en) * | 2015-12-25 | 2016-05-04 | 本钢板材股份有限公司 | Hot stamping forming steel board for restraining falling off of oxide layer in hot stamping process and production method thereof |
| CN106399837A (en) * | 2016-07-08 | 2017-02-15 | 东北大学 | Steel for hot stamping forming, hot stamping forming process and hot stamping forming component |
| CN106119692A (en) * | 2016-08-24 | 2016-11-16 | 武汉钢铁股份有限公司 | By the tensile strength of medium thin slab Direct Rolling >=1500MPa hot forming steel and production method |
| CN106702278A (en) * | 2017-01-20 | 2017-05-24 | 本钢板材股份有限公司 | Hot punching forming steel plate production method capable of controlling peeling off of oxidized iron sheet without coating |
| CN107641759A (en) * | 2017-09-13 | 2018-01-30 | 武汉钢铁有限公司 | Method based on CSP flows production Thin Specs hot forming steel |
| CN108411195A (en) * | 2018-03-27 | 2018-08-17 | 本钢板材股份有限公司 | A kind of the hot forming steel plate and preparation method of cold environment punching production |
| CN108411202A (en) * | 2018-04-03 | 2018-08-17 | 本钢板材股份有限公司 | A kind of think gauge cold-rolled biphase steel and preparation method thereof |
| CN108374127A (en) * | 2018-04-28 | 2018-08-07 | 育材堂（苏州）材料科技有限公司 | Hot press-formed steel, hot press-formed technique and hot press-formed component |
| CN108546876A (en) * | 2018-05-07 | 2018-09-18 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of hot rolled steel plate and preparation method thereof |
| CN108754319A (en) * | 2018-06-08 | 2018-11-06 | 武汉钢铁有限公司 | Using the tensile strength >=1800MPa grades of hot forming steel and method of the production of ESP producing lines |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112725696A (en) * | 2020-12-21 | 2021-04-30 | 本钢板材股份有限公司 | Production method of low-carbon low-alloy boron-containing structural steel |
| CN113755758A (en) * | 2021-09-03 | 2021-12-07 | 本钢板材股份有限公司 | 8 mm-thick hot stamping steel prepared by adding cerium microalloy and hot stamping process thereof |
| CN113755758B (en) * | 2021-09-03 | 2023-02-03 | 本钢板材股份有限公司 | 8 mm-thick hot stamping steel prepared by adding cerium microalloy and hot stamping process thereof |
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