CN105002445B - It is a kind of to be used to manufacture 4130X seamless steel pipes of on-board high-voltage gas cylinder and preparation method thereof - Google Patents
It is a kind of to be used to manufacture 4130X seamless steel pipes of on-board high-voltage gas cylinder and preparation method thereof Download PDFInfo
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Abstract
The present invention discloses a kind of 4130X seamless steel pipes for being used to manufacture on-board high-voltage gas cylinder, and the weight/mass percentage composition of the chemical composition of the seamless steel pipe is：C 0.28~0.34%, Si 0.15~0.35%, Mn 0.7~0.9%, Cr 0.95~1.10%, Mo 0.20~0.25%, Al 0.010~0.040%, P≤0.020%, S≤0.010%, Ni≤0.18, Cu≤0.20, As+Sn+Sb+Bi+Pb≤0.035%, remaining is iron and micro impurity element.A kind of production method for being used to manufacture on-board high-voltage gas cylinder 4130X seamless steel pipes is provided simultaneously, present invention has the advantages that the 4130X seamless steel pipes produced using this method meet the requirement for the performances such as on-board high-voltage gas cylinder is low to the high intensity, high tenacity and yield tensile ratio of body material, production efficiency is high simultaneously, and metal consumption is small.
Description
Technical field
The present invention relates to metallurgical technology field, and in particular to a kind of 4130X seamless steels for being used to manufacture on-board high-voltage gas cylinder
Pipe and preparation method thereof.
Background technology
Natural gas is a kind of high-quality and efficient energy, is the most ideal fuels of environment protection.Gas reserves is rich simultaneously
Richness, it is the preferable alternative energy source of oil.With the development of globalization of World Economics, status of the natural gas in energy resource structure is increasingly
Expand, effectively alleviate energy shortage situation.
Increase severely with natural gas warehousing and transportation facilities market, how to realize quick, the efficient and convenient conveying of gas turns into industrial gas
Body industry focus of attention, especially Special high-voltage gas cylinder (such as CNG gas cylinders), super-pressure gas cylinder turn into development trend.
A kind of the present invention is intended to provide production method for being used to manufacture on-board high-voltage gas cylinder 4130X seamless steel pipes.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of 4130X seamless steels for being used to manufacture on-board high-voltage gas cylinder
Pipe.
To achieve these objectives, a kind of 4130X seamless steel pipes for being used to manufacture on-board high-voltage gas cylinder of the present invention, its chemical composition
Mass percent is：：C 0.28~0.34%, Si 0.15~0.35%, Mn 0.7~0.9%, Cr 0.95~1.10%, Mo
0.20~0.25%, Al 0.010~0.040%, P≤0.020%, S≤0.010%, Ni≤0.18, Cu≤0.20, As+Sn+
Sb+Bi+Pb≤0.035%, remaining is iron and micro impurity element.
Further：A kind of chemical composition quality percentage for being used to manufacture the 4130X seamless steel pipes of on-board high-voltage gas cylinder
Content is：C 0.290%, Si 0.270%, Mn 0.740%, P 0.011%, S 0.002%, Cr 1.00%, Mo
0.220%th, Al 0.024%, remaining is iron and micro impurity element.
A kind of preparation method for being used to manufacture the 4130X seamless steel pipes of on-board high-voltage gas cylinder that the present invention solves.Pass through this
Method prepares a kind of for manufacturing on-board high-voltage gas cylinder 4130X seamless steel pipes, quenched rear body yield strength：574Mpa~
673Mpa, tensile strength：687Mpa~792Mpa, yield tensile ratio≤0.85%, -60 DEG C of Charpy v-notch (longitudinal direction) absorb impact
Energy：110J~170J, hardness：220HBW~250HBW.
Technical scheme is as follows：
A kind of preparation method for being used to manufacture on-board high-voltage gas cylinder 4130X seamless steel pipes, including：Smelt production,
Rolling Production process and steel heat treatment process.
Further, the steelmaking process includes molten iron pretreatment, converter smelting, LF refining, VD degassings and round billet company
Casting, converter smelting molten iron is all using pre- desulphurised hot metal, and molten iron requires S≤0.05%, and P≤0.12%, final deoxidizing, which uses, aluminium
Deoxidation, outlet temperature >=1630 DEG C, LF refining requires whole normal Argon, using from low several levels to high several levels heating mode, VD
Vacuum outgas depth vacuum≤0.10Kpa, deep vacuum >=13 minute, VD later stages feed 200m silicon-calcium wires, when ensureing soft blow after line feeding
Between >=15min.Pulling speed of continuous casting is controlled in 0.35m/min, the degree of superheat≤30 DEG C of molten steel.
Further, the operation of rolling of the steel includes round billet heating, perforation, tube rolling, sizing, cold bed cooling, flaw detection, round billet
Heating is using preheating section, bringing-up section, soaking zone Segmented heating, and at 980 DEG C -1150 DEG C, bringing-up section controls for preheating temperature control
At 1100 DEG C -1280 DEG C, soaking zone is controlled at 1240 DEG C -1290 DEG C, and at 1150 DEG C -1200 DEG C, tension force subtracts tube rolling temperature control
Footpath temperature >=850 DEG C, then cold bed cool down, use solid matter retarded cooling process, more than 650 DEG C, cooldown rate≤0.50 on cold bed
DEG C/s, then carry out steel tube flaw detection.
Further, the Technology for Heating Processing of state steel pipe is rolled, using quenching+tempering hardening and tempering process, hardening media is water, quenching temperature
Spend for 880 DEG C, be incubated 40min, temperature is 690 DEG C~730 DEG C, is incubated 90min.
One kind of the present invention is as follows for manufacturing on-board high-voltage gas cylinder 4130X seamless steel pipe preparation method technique effects:
One kind of preparation is used to manufacture on-board high-voltage gas cylinder 4130X seamless steel pipes, quenched rear body yield strength：
574Mpa~673Mpa, tensile strength：687Mpa~792Mpa, yield tensile ratio≤0.85%, -60 DEG C of Charpy v-notch (longitudinal direction)
Apparatus with shock absorbing：110J~170J, hardness：220HBW~250HBW.Material has good combination property after quenched, can be with
Ensure the security of materials'use.
Embodiment
With reference to embodiments, the forgoing and additional technical features and advantages are described in more detail.
Smelt production includes molten iron pretreatment, requires S≤0.05%, P≤0.12%, to ensure that steel inclusion contains
Amount is in relatively low level, and final deoxidizing uses converter smelting, LF refining, VD degassings and round billet continuous casting, and converter smelting is all using pre-
Desulphurised hot metal, molten iron have aluminium deoxidation, reduce gas particularly oxygen content in steel, outlet temperature >=1630 DEG C, and LF refining will demand perfection
Cheng Zhengchang Argons, using from low several levels to high several levels heating mode, VD depths vacuum≤0.10Kpa, deep vacuum >=13 minute, after VD
Phase feeds 200m silicon-calcium wires, the field trash in steel is fully denatured, and ensures that soft blow time >=15min enables field trash after line feeding
Fully float.Continuous casting uses horizontal pulling rate, controls in 0.35m/min, the degree of superheat≤30 DEG C of molten steel.
The operation of rolling of steel includes round billet heating, perforation, tube rolling, a tube reducing, cold bed cooling, flaw detection, and heating of pipe blank uses
Preheating section, bringing-up section, soaking zone Segmented heating, strictly control furnace temperature, and temperature uniformly rises, preheating temperature control 980 DEG C-
1150 DEG C, at 1100 DEG C -1280 DEG C, soaking zone is controlled at 1240 DEG C -1290 DEG C for bringing-up section control, ensures that material homogeneous heating is burnt
Meeting burning, tube rolling temperature control ensure the rolling of steel pipe in the best humidity province of material plasticity at 1150 DEG C -1200 DEG C again thoroughly
Between, resistance of deformation is small, stretch reducing temperature >=850 DEG C, and a normalizing has been carried out equivalent to material, and group is done for follow-up heat treatment
Knit preparation.Then solid matter retarded cooling process is used on cold bed, more than 650 DEG C, cooldown rate≤0.50 DEG C/s, makes to organize phase in steel
Become and occur in the pearlite transformation section of ferrite ten.
Heat-Treatment of Steel process, using quenching+tempering hardening and tempering process, hardening media is water, and hardening heat is 880 DEG C, is protected
Warm 40min, temperature are 690 DEG C~730 DEG C, are incubated 90min.The fluctuation of strict control furnace temperature, ensures material
Yield strength is offline in standard prescribed strength, reduces the yield tensile ratio of material.
A kind of 4130X seamless steel pipes for being used to manufacture on-board high-voltage gas cylinder of said process production, the matter of its chemical composition
Measuring percentage composition is：C 0.28~0.34%, Si 0.15~0.35%, Mn 0.7~0.9%, Cr 0.95~1.10%, Mo
0.20~0.25%, Al 0.010~0.040%, P≤0.020%, S≤0.010%, Ni≤0.18, Cu≤0.20, As+Sn+
Sb+Bi+Pb≤0.035%, remaining is iron and micro impurity element.
Each exemplary chemical composition (%) of table 1
| Embodiment | C | Si | Mn | P | S | Cr | Mo | Al |
| Embodiment 1 | 0.29 | 0.27 | 0.74 | 0.010 | 0.004 | 0.60 | 1.049 | 0.220 |
| Embodiment 2 | 0.30 | 0.26 | 0.76 | 0.009 | 0.003 | 0.65 | 1.046 | 0.221 |
| Embodiment 3 | 0.31 | 0.27 | 0.77 | 0.009 | 0.003 | 0.70 | 0.970 | 0.249 |
Each embodiment Technology for Heating Processing is as shown in table 2.
Each example Technology for Heating Processing of table 2
Each embodiment mechanics properties testing result is as shown in table 3.
Each embodiment mechanical experimental results of table 3
From table 3 it can be seen that the seamless steel pipe material of the present invention has the intensity of good mechanical property, particularly material
Value control is stable, and yield tensile ratio is small, and steel low-temperature impact toughness is good, and -60 DEG C of impact values reach more than 100J, and material has fine intensity
And toughness.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
Enclose and be defined, on the premise of design spirit of the present invention is not departed from, technical side of the those of ordinary skill in the art to the present invention
The various modifications and improvement that case is made, it all should fall into the protection domain of claims of the present invention determination.
Claims (5)
- A kind of 1. 4130X seamless steel pipes for being used to manufacture on-board high-voltage gas cylinder, it is characterised in that the steel pipe chemical composition quality Percentage is：C 0.29~0.31%, Si 0.26~0.27%, Mn 0.74~0.77%, Cr 0.60% or 0.70%, Mo 0.970% or 1.049%, Al 0.220% or 0.249%, P 0.009~0.010%, S 0.003~0.004%, Ni≤ 0.18th, Cu≤0.20, As+Sn+Sb+Bi+Pb≤0.035%, remaining is iron and micro impurity element.
- 2. a kind of prepare the method as claimed in claim 1 for being used to manufacture the 4130X seamless steel pipes of on-board high-voltage gas cylinder, it is special Sign is to comprise the following steps：The heat treatment process of smelt production, Rolling Production process and material.
- 3. the preparation method as claimed in claim 2 for being used to manufacture the 4130X seamless steel pipes of on-board high-voltage gas cylinder, its feature exist In：The smelt production includes molten iron pretreatment, converter smelting, LF refining, VD degassings and round billet continuous casting；Converter smelting iron Water is all using pre- desulphurised hot metal, and molten iron requires S≤0.05%, and P≤0.12%, final deoxidizing, which uses, aluminium deoxidation, outlet temperature >=1630 DEG C, LF refining requires whole normal Argon, using from low several levels to high several levels heating mode, VD deaerate deep vacuum≤ 0.10Kpa, deep vacuum >=13 minute, VD later stages feed silicon-calcium wire, ensure soft blow time >=15min after line feeding；Pulling speed of continuous casting control System is in 0.35m/min, the degree of superheat≤30 DEG C of molten steel.
- 4. the preparation method as claimed in claim 2 for being used to manufacture the 4130X seamless steel pipes of on-board high-voltage gas cylinder, its feature exist In：The operation of rolling of the steel includes round billet heating, perforation, tube rolling, sizing, cold bed cooling, flaw detection, and round billet heating is using preheating Section, bringing-up section, soaking zone Segmented heating, at 980 DEG C -1150 DEG C, bringing-up section is controlled at 1100 DEG C -1280 for preheating temperature control DEG C, soaking zone is controlled at 1240 DEG C -1290 DEG C, and tube rolling temperature control temperature >=850 DEG C after 1150 DEG C -1200 DEG C, sizing are cold Solid matter retarded cooling process, more than 650 DEG C, cooldown rate≤0.50 DEG C/s are used on bed.
- 5. the preparation method as claimed in claim 2 for being used to manufacture the 4130X seamless steel pipes of on-board high-voltage gas cylinder, its feature exist In：The Heat-Treatment of Steel technique, using quenching+tempering hardening and tempering process, hardening media is water, and hardening heat is 880 DEG C, insulation 40min, temperature are 690 DEG C~730 DEG C, are incubated 90min.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105603335A (en) * | 2016-01-19 | 2016-05-25 | 安徽涌畅铸件有限公司 | Production method of natural gas alloy steel pipe |
| EP3530761B1 (en) * | 2018-02-23 | 2022-04-27 | Vallourec Deutschland GmbH | High tensile and high toughness steels |
| CN108277435A (en) * | 2018-03-21 | 2018-07-13 | 包头钢铁（集团）有限责任公司 | A kind of anti-corrosion pressure-bearing seamless steel pipe and its production method |
| CN109022663B (en) * | 2018-07-11 | 2020-05-15 | 石钢京诚装备技术有限公司 | Method for refining 890 QL-grade arm support steel |
| CN109594021A (en) * | 2019-01-11 | 2019-04-09 | 包头钢铁（集团）有限责任公司 | A kind of 1000MPa grades of high-strength seamless steel pipe for gas cylinder and preparation method thereof |
| CN109778064A (en) * | 2019-01-11 | 2019-05-21 | 包头钢铁（集团）有限责任公司 | A kind of economical 555MPa grades of seamless steel pipes and preparation method thereof |
| CN111172478A (en) * | 2020-02-11 | 2020-05-19 | 包头钢铁（集团）有限责任公司 | Seamless steel tube for cold drawing gas cylinder and preparation method thereof |
| CN112372238A (en) * | 2020-09-29 | 2021-02-19 | 浙江蓝能燃气设备有限公司 | High-pressure ultrahigh-pressure hydrogen storage bottle type container and manufacturing method thereof |
| CN115679196B (en) * | 2021-07-30 | 2024-04-05 | 宝山钢铁股份有限公司 | Seamless steel tube for self-lubricating automobile driving shaft and manufacturing method thereof |
| CN115058646B (en) * | 2022-05-23 | 2023-09-26 | 江阴兴澄特种钢铁有限公司 | High-strength low-temperature-resistant corrosion-resistant steel for vehicle-mounted gas cylinder and manufacturing method thereof |
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| CN101831593B (en) * | 2010-05-27 | 2011-08-10 | 浙江健力股份有限公司 | C90-1 steel-grade bushing special for petroleum and natural gas and manufacturing process thereof |
| CN102277534B (en) * | 2011-07-29 | 2012-12-12 | 攀钢集团有限公司 | Hot rolled steel section for gas cylinders and production method thereof |
| CN102268608B (en) * | 2011-07-29 | 2013-02-27 | 攀钢集团有限公司 | Large capacity high pressure gas cylinder steel and production method thereof |
| CN102330030B (en) * | 2011-10-14 | 2013-02-20 | 天津钢管集团股份有限公司 | Seamless steel pipe with diameter of between 559 and 711mm for vehicular high-pressure gas cylinder and production method thereof |
| CN104789878B (en) * | 2015-05-05 | 2017-03-15 | 内蒙古包钢钢联股份有限公司 | A kind of high-hardenability oil casing collar material seamless steel pipe and preparation method |
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