WO2015196792A1 - 一种汽车安全气囊用高强韧无缝钢管及其制造方法 - Google Patents
一种汽车安全气囊用高强韧无缝钢管及其制造方法 Download PDFInfo
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- WO2015196792A1 WO2015196792A1 PCT/CN2015/070662 CN2015070662W WO2015196792A1 WO 2015196792 A1 WO2015196792 A1 WO 2015196792A1 CN 2015070662 W CN2015070662 W CN 2015070662W WO 2015196792 A1 WO2015196792 A1 WO 2015196792A1
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- steel pipe
- seamless steel
- manufacturing
- strength
- automobile airbags
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
- C21D8/105—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies of ferrous alloys
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with copper
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/002—Bainite
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/005—Ferrite
Definitions
- the invention relates to a metallurgical product and a manufacturing method thereof, in particular to a seamless steel pipe and a manufacturing method thereof.
- the working principle of automobile airbag is: when the gas generator containing explosive drugs senses the speed change caused by the collision, it generates ignition action according to the signal instruction, ignites the solid fuel and generates gas to inflate the airbag, so that the airbag Rapid expansion to reduce the impact on people during a collision.
- the gas generator containing explosive drugs senses the speed change caused by the collision, it generates ignition action according to the signal instruction, ignites the solid fuel and generates gas to inflate the airbag, so that the airbag Rapid expansion to reduce the impact on people during a collision.
- seamless steel pipes are generally required to have high blasting strength, strong toughness, and low-temperature impact toughness.
- the publication number is JP2002-294339, the publication date is October 9, 2002, and the name is "Excellent weldability and formability, high dimensional accuracy, high tensile strength, and excellent blast resistance air bag steel and
- the Japanese patent document "The manufacturing method thereof” relates to a steel material used for an air bag and a manufacturing method thereof.
- the chemical element composition (wt.%) of the steel is: C: 0.05-0.20%, Si: 0.1-1.0%, Mn: 0.20-2.0%, P ⁇ 0.025%, S ⁇ 0.010%, Cr: 0.05-1.0% , Al ⁇ 0.10%, Mo ⁇ 0.50%, Ni ⁇ 1.5%, Cu ⁇ 0.5%, V ⁇ 0.2%, Ti ⁇ 0.1%, Nb ⁇ 0.1%, B ⁇ 0.005%, the balance is Fe and unavoidable impurities .
- it is quenched by heating to the temperature (at least) of the Ac1 transformation point, and then tempered at the temperature of the Ac1 transformation point.
- the publication number is CN102304613A
- the publication date is January 4, 2012
- the Chinese patent document titled "Steel Pipe for Airbag System and Its Manufacturing Method” discloses a seamless steel pipe for airbag and its manufacturing method.
- the chemical element mass percentage content of the steel pipe is (wt.%) composition: C: ⁇ 0.12%, Mn: 1.00-1.40%, S: ⁇ 0.01%, P: ⁇ 0.015%, Si: 0.15- 0.35%, Ni: ⁇ 0.25%, Cr: 0.40-0.80%, Mo: 0.30-0.60%, V: ⁇ 0.07%, Cu: ⁇ 0.35%, Al: 0.15-0.05%, Ne: ⁇ 0.05%, Ti: ⁇ 0.05%, Sn: ⁇ 0.05%, Sb: ⁇ 0.05%, As: ⁇ 0.05%, Pb: ⁇ 0.05%, and the total amount of Sn, Sb, As, and Pb elements is ⁇ 0.15%, and the balance is Fe.
- the Chinese patent document also discloses the manufacturing method of the seamless steel pipe
- the steel or seamless steel pipe manufacturing methods disclosed in the above two patent documents require a quenching + tempering heat treatment method for the corresponding steel or seamless steel pipe to achieve higher tensile strength.
- the publication number is CN101528964A, the publication date is September 9, 2009, and the Chinese patent document entitled "Seamless steel pipe for airbag accumulator and its manufacturing method" discloses a seamless steel pipe and its manufacturing method.
- the above-mentioned Chinese patent documents adopt a normalizing + tempering heat treatment method to achieve high strength and high toughness.
- the chemical composition of the seamless steel pipe contains Ca, Mg and rare earth elements, which increases the manufacturing cost of the steel pipe.
- the purpose of the present invention is to provide a high-strength seamless steel pipe for automobile airbags.
- the seamless steel pipe has high strength and toughness product, good low-temperature toughness and low-temperature blasting performance, and large elongation and low-temperature impact absorption.
- the seamless steel pipe has a thin wall and good dimensional accuracy.
- the present invention proposes a high-strength seamless steel pipe for automobile airbags, and its chemical element mass percentage ratio is:
- the balance is Fe and other unavoidable impurities.
- the unavoidable impurities in this technical solution are mainly S and P elements. Try to control S below 0.015% and P below 0.025%.
- the C element is one of the main elements that increase the strength of steel, and it can effectively increase the strength of steel through the formation of carbides, and the addition cost is low.
- the seamless steel pipe cannot reach the tensile strength above 850MPa, but when the C content is higher than 0.15wt.%, the seamless steel pipe’s toughness, low-temperature impact performance, low-temperature blasting performance and welding Comprehensive performance such as performance will be affected.
- the content of C element needs to be controlled to 0.05-0.15 wt.%.
- Si element is used as a reducing agent and deoxidizer in the steelmaking process. It does not form carbides in steel, and its solid solubility in steel is large, which can strengthen the ferrite in the steel to improve the steel Strength of.
- the Si content should be controlled to 0.10 to 0.45 wt.%.
- Mn is an important alloying element and a weak carbide forming element. Mn mainly improves the strength of steel through solid solution strengthening. Increasing the Mn content can reduce the phase transition temperature of the steel and reduce the critical cooling rate of quenching. When the Mn content reaches 1.0wt.% or more, the hardenability of the steel can be significantly increased; however, if the Mn content exceeds 1.9wt.% , The impact toughness of steel decreases more significantly. Therefore, in this technical solution, the Mn content needs to be set to 1.0-1.9 wt.%.
- Ni is not only an element that can improve the strength and hardenability of steel, but also an element that can improve the toughness of steel. Considering the cost factor of comprehensive steel, in the technical scheme of the present invention, the content of Ni is controlled at To Only within the range of 0.1-0.6wt.% can it be combined with other elements to achieve the desired strengthening effect and at the same time increase the toughness of the steel.
- Cr is a medium-strength carbide forming element. Part of the Cr in the steel is replaced with iron to form alloy cementite to improve its stability, and the other part is dissolved in the ferrite to play a solid solution strengthening effect and increase the strength and hardness of the ferrite. At the same time, Cr is also the main element to improve the hardenability of steel. However, once the Cr content exceeds 1.0wt.%, it will have an impact on the toughness of the welded part, and considering the factors of added cost, the Cr content in the high-strength seamless steel pipe for automobile airbags of the present invention is controlled to 0.05-1.0wt. .%.
- Mo has the effect of solid solution strengthening in steel and improving the hardenability of steel. When the Mo content reaches 0.05wt.%, it will have significant solid solution strengthening and improve hardenability effects. When the Mo content exceeds a certain range, it will have an impact on the toughness of the welded part of the steel pipe. At the same time, the cost factor must be considered, and the Mo content in the high-strength seamless steel pipe for automobile airbags of the present invention is controlled to 0.05-0.2wt.%.
- Cu can enhance the toughness of steel, and the corresponding effect can be obtained even with a small content of Cu. If the Cu content exceeds 0.50wt.%, it will have a greater impact on the hot workability of the steel, even if composite elements are added. The hot workability of the steel pipe cannot be guaranteed. Therefore, in the technical solution of the present invention, the Cu content needs to be controlled to 0.05 to 0.50 wt.%.
- Al has a deoxidizing effect in steel and it contributes to improving the toughness and workability of steel.
- the Al content reaches more than 0.015wt.%, the effect of improving the toughness and workability of the steel is more significant, but when the Al content exceeds 0.060wt.%, the tendency of cracks to appear in the steel increases. Based on this, the present invention controls the Al content between 0.015 and 0.060 wt.%.
- Nb The role of Nb is to improve the toughness of steel. When the Nb content is greater than or equal to 0.02wt.%, the effect of this addition is more obvious, but when the Nb content is greater than 0.1wt.%, the toughness of the steel will decrease. Therefore, in the technical solution of the present invention, the Nb content should be set to 0.02-0.1 wt.%.
- V is a forming element of strong carbides, and its ability to bond with carbon is very strong.
- the formed fine and dispersed VC particles can play a role of dispersion strengthening and increase the strength of steel significantly. If the content of V is less than 0.02wt.%, the dispersion strengthening effect is not obvious, but if the content of V is greater than 0.15wt.%, it will also affect the processing performance of the steel. For this reason, control the content of V in the steel 0.02 ⁇ 0.15wt.%
- the high-strength seamless steel pipe for automobile airbags of the present invention does not contain high-cost additive elements such as Ca, Mg, or rare earth metals. It adopts optimized design of chemical composition and combined with reasonable manufacturing. To The process enables the high-strength seamless steel pipe for automobile airbags of the present invention to have high strength, large strength and toughness, good low-temperature toughness, good low-temperature blasting performance, and large elongation and low-temperature impact absorption.
- the high-strength seamless steel pipe for automobile airbags of the present invention further includes the element B of ⁇ 0.005wt%.
- Adding a small amount of B to the steel can significantly improve the hardenability of the steel, and improve the process and mechanical properties of the steel. For this reason, an appropriate amount of B is added to the high-strength seamless steel pipe for automobile airbags according to the present invention. , And control the content of B to ⁇ 0.005wt.%.
- the wall thickness of the high-strength seamless steel pipe for automobile airbags of the present invention is ⁇ 1.5 mm.
- the outer diameter of the high-strength seamless steel pipe for automobile airbags of the present invention is 15-50 mm.
- microstructure of the high-strength seamless steel pipe for automobile airbags of the present invention is ferrite + lower bainite.
- another object of the present invention is to provide a method for manufacturing the above-mentioned high-strength seamless steel pipe for automobile airbags, which includes the following steps:
- the manufacturing method of the high-strength seamless steel pipe for automobile airbags of the present invention does not use a complicated quenching + tempering heat treatment method, but a simple and economical stress-relieving annealing heat treatment method to obtain high-strength, high-strength and toughness products.
- a simple and economical stress-relieving annealing heat treatment method to obtain high-strength, high-strength and toughness products.
- this not only simplifies the process steps of the above-mentioned seamless steel pipe manufacturing method, but also avoids the large deformation of the quenching process that causes the seamless steel pipe to fail to meet the high dimensions of automotive airbag products. Precision requirements.
- the use of stress relief annealing heat treatment method can not only ensure the tensile strength of the steel pipe, but also ensure the plasticity and toughness of the steel pipe.
- the tube blank is heated to 1220°C to 1260°C, and soaked for 10-20 minutes.
- step (4) cold drawing or cold rolling is used for cold working.
- the elongation coefficient of each cold working pass is less than or equal to 1.5, so as to ensure the production efficiency of the steel pipe while avoiding After cold working, the steel pipe has defects such as cracks.
- the last cold working elongation coefficient is ⁇ 1.4 to ensure the strength of the steel pipe before the final heat treatment.
- the stress relief annealing temperature is 680-780° C.
- the holding time is 10-20 min.
- the heating temperature of stress relief annealing is too high, or the holding time is too long, which will cause the grains of the finished steel pipe to be coarse, so that the strength and hardness of the steel pipe cannot meet the requirements of use.
- the heating temperature is too low, the precipitated carbides cannot be fully dissolved and cannot achieve the strengthening effect.
- the stress relief annealing temperature in the manufacturing method of the high-strength seamless steel pipe for automobile airbags of the present invention is set to 680-780°C, and the heat preservation time is controlled to 10-20min in order to make the steel Carbides are precipitated in a short time to achieve the effect of solid solution strengthening.
- the final performance of the above seamless steel pipe can meet the requirements of the steel for automobile airbags. Requirements for use.
- the high-strength seamless steel pipe for automobile airbags of the present invention adopts the above technical scheme, so that it has high strength and toughness product, good low-temperature toughness and low-temperature blasting performance, and large elongation and low-temperature impact. Absorbed work, its tensile strength ⁇ 850Mpa, -60°C low temperature impact energy ⁇ 15J, elongation ⁇ 18%.
- the high-strength seamless steel pipe for automobile airbags of the present invention has thin tube walls, light weight, and good dimensional accuracy, and can meet the use requirements of lightweight vehicles.
- the high-strength seamless steel pipe for automobile airbags of the present invention does not add expensive metal elements, and the production cost is low.
- the manufacturing method of the high-strength seamless steel pipe for automobile airbags of the present invention can produce high tensile strength, high toughness product, good low-temperature toughness, good low-temperature blasting performance, high elongation and good low-temperature impact absorption performance Seamless steel pipe.
- the manufacturing method of the high-strength seamless steel pipe for automobile airbags of the present invention not only ensures the production efficiency of manufacturing steel pipes, but also effectively avoids the cracking of the steel pipes by controlling the elongation coefficient of each pass of cold working.
- the high-strength seamless steel pipes A1-A10 for automobile airbags according to the present invention and the comparative examples B1-B6 are manufactured according to the following steps, which include the following steps:
- a vertical conical thermal piercing machine is used for thermal piercing, and the tube blank is reduced in diameter and wall thickness by a three-roll tension reducer and then cooled naturally;
- Table 1 lists the mass percentages of the chemical elements of Examples A1-A10 and Comparative Examples B1-B6 of this case.
- Table 2 shows the process parameters of each step in Examples A1 to A10 and Comparative Examples B1 to B5.
- the standards for high-toughness seamless steel pipes for automobile airbags whether the seamless steel pipes in the above-mentioned examples and comparative examples are qualified are as follows: 1) Tensile strength> 850MPa, 2) -60°C impact absorption energy> 15J, and 3) -60°C low-temperature blasting fracture shows ductile fracture, that is, when the above seamless steel pipe meets the standards of 1) ⁇ 3) at the same time, it is qualified; otherwise, it is unqualified.
- the obtained seamless steel pipes in the examples and comparative examples The comprehensive mechanical performance parameters of the steel pipe are shown in Table 3.
- the product of strength and toughness is the product of tensile strength and impact energy.
- the seamless steel pipes in Examples A1-A10 have the chemical element mass percentage ratio specified in the technical solution of the present invention, and they are all provided in accordance with the present invention.
- the high-strength seamless steel pipes for automobile airbags in Examples A1-A10 have a tensile strength ⁇ 855Mpa, an elongation ⁇ 18%, and a strength product ⁇ 14620MPa*J.
- the high-strength seamless steel pipe for automobile airbags has a minimum impact absorption energy of 17J at -60°C. At the same time, it shows a ductile fracture after liquid explosion at -60°C, and the fracture does not penetrate.
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Abstract
Description
Claims (11)
- 一种汽车安全气囊用高强韧无缝钢管,其特征在于,其化学元素质量百分配比为:C:0.05-0.15%;Si:0.1-0.45%;Mn:1.0-1.9%;Ni:0.1-0.6%;Cr:0.05-1.0%;Mo:0.05-0.2%;Cu:0.05-0.50%;Al:0.015-0.060%;Nb:0.02-0.1%;V:0.02-0.15%;余量为Fe和其他不可避免的杂质。
- 如权利要求1所述的汽车安全气囊用高强韧无缝钢管,其特征在于,还包括≤0.005wt%的B元素。
- 如权利要求1所述的汽车安全气囊用高强韧无缝钢管,其特征在于,其壁厚≥1.5mm。
- 如权利要求1所述的汽车安全气囊用高强韧无缝钢管,其特征在于,其外径为15-50mm。
- 如权利要求1所述的汽车安全气囊用高强韧无缝钢管,其特征在于,其微观组织为铁素体+下贝氏体。
- 如权利要求1-5中任意一项所述的汽车安全气囊用高强韧无缝钢管的制造方法,其包括步骤:(1)将管坯加热后均热;(2)进行热穿孔,通过张力减径机对管坯进行减径减壁厚后自然冷却;(3)退火、酸洗、磷化皂化;(4)冷加工至成品尺寸;(5)进行去应力退火。
- 如权利要求6所述的汽车安全气囊用高强韧无缝钢管的制造方法,其特征在于,在步骤(1)中,将管坯加热到1220℃-1260℃,均热10-20min。
- 如权利要求6所述的汽车安全气囊用高强韧无缝钢管的制造方法,其特征在于,在所述步骤(4)中,采用冷拔或冷轧的方式进行冷加工。
- 如权利要求6所述的汽车安全气囊用高强韧无缝钢管的制造方法,其特征在于,在所述步骤(4)中,每道次冷加工的延伸系数≤1.5。
- 如权利要求9所述的汽车安全气囊用高强韧无缝钢管的制造方法,其特征在于,在所述步骤(4)中,最后一道次冷加工延伸系数≥1.4。
- 如权利要求6所述的汽车安全气囊用高强韧无缝钢管的制造方法,其特征在于,在所述步骤(5)中,去应力退火温度680-780℃,保温时间为10-20min。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/321,189 US10494690B2 (en) | 2014-06-25 | 2015-01-14 | High-toughness seamless steel tube for automobile safety airbag and manufacturing method therefor |
DE112015003030.1T DE112015003030T5 (de) | 2014-06-25 | 2015-01-14 | Nahtloses Stahlrohr mit hoher Stärke und Zähigkeit für einen Auto-Airbag sowie dessen Herstellungsverfahren |
JP2016575235A JP6772075B2 (ja) | 2014-06-25 | 2015-01-14 | 車エアバッグ用高強度・高靭性継目無鋼管とその製造方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN201410290460.2A CN104046924B (zh) | 2014-06-25 | 2014-06-25 | 一种汽车安全气囊用高强韧无缝钢管及其制造方法 |
CN201410290460.2 | 2014-06-25 |
Publications (1)
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101233253A (zh) * | 2005-07-26 | 2008-07-30 | 住友金属工业株式会社 | 无缝钢管及其制造方法 |
CN101527964A (zh) * | 2009-03-31 | 2009-09-09 | 华为技术有限公司 | 一种提升Sounding信号质量的方法、装置和系统 |
CA2800991A1 (en) * | 2010-06-03 | 2011-12-08 | Nippon Steel & Sumitomo Metal Corporation | Process for manufacturing a steel tube for air bags |
CN104046924A (zh) * | 2014-06-25 | 2014-09-17 | 宝山钢铁股份有限公司 | 一种汽车安全气囊用高强韧无缝钢管及其制造方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1375683B1 (en) * | 2001-03-29 | 2012-02-08 | Sumitomo Metal Industries, Ltd. | High strength steel tube for air bag and method for production thereof |
JP2004207303A (ja) | 2002-12-24 | 2004-07-22 | Seiko Epson Corp | 配線基板及び半導体装置並びにこれらの製造方法、回路基板並びに電子機器 |
US20060169368A1 (en) | 2004-10-05 | 2006-08-03 | Tenaris Conncections A.G. (A Liechtenstein Corporation) | Low carbon alloy steel tube having ultra high strength and excellent toughness at low temperature and method of manufacturing the same |
EP1820576B1 (en) | 2004-10-28 | 2010-01-27 | Sumitomo Metal Industries, Ltd. | Production method of seamless steel pipe |
WO2006046503A1 (ja) | 2004-10-29 | 2006-05-04 | Sumitomo Metal Industries, Ltd. | エアバッグインフレータ用鋼管とその製造方法 |
CN101374966B (zh) | 2006-02-09 | 2011-01-19 | 住友金属工业株式会社 | 安全气囊充气机瓶部件的制造方法 |
WO2008000300A1 (en) | 2006-06-29 | 2008-01-03 | Tenaris Connections Ag | Seamless precision steel tubes with improved isotropic toughness at low temperature for hydraulic cylinders and process for obtaining the same |
CN1923395A (zh) * | 2006-09-26 | 2007-03-07 | 李永立 | 高精度无缝钢管的生产方法 |
CN101528964B (zh) * | 2006-10-27 | 2011-06-08 | 住友金属工业株式会社 | 安全气囊蓄压器用无缝钢管及其制造方法 |
CN101343715B (zh) * | 2008-09-03 | 2011-07-13 | 天津钢管集团股份有限公司 | 高强高韧x70厚壁无缝管线钢及制造方法 |
CN101481780B (zh) * | 2008-12-06 | 2012-03-14 | 燕山大学 | 超高强度高韧性易焊接超细奥氏体晶粒钢及其制造方法 |
-
2014
- 2014-06-25 CN CN201410290460.2A patent/CN104046924B/zh active Active
-
2015
- 2015-01-14 US US15/321,189 patent/US10494690B2/en active Active
- 2015-01-14 DE DE112015003030.1T patent/DE112015003030T5/de active Pending
- 2015-01-14 JP JP2016575235A patent/JP6772075B2/ja active Active
- 2015-01-14 WO PCT/CN2015/070662 patent/WO2015196792A1/zh active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101233253A (zh) * | 2005-07-26 | 2008-07-30 | 住友金属工业株式会社 | 无缝钢管及其制造方法 |
CN101527964A (zh) * | 2009-03-31 | 2009-09-09 | 华为技术有限公司 | 一种提升Sounding信号质量的方法、装置和系统 |
CA2800991A1 (en) * | 2010-06-03 | 2011-12-08 | Nippon Steel & Sumitomo Metal Corporation | Process for manufacturing a steel tube for air bags |
CN104046924A (zh) * | 2014-06-25 | 2014-09-17 | 宝山钢铁股份有限公司 | 一种汽车安全气囊用高强韧无缝钢管及其制造方法 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113245856A (zh) * | 2021-05-06 | 2021-08-13 | 张家港保税区恒隆钢管有限公司 | 一种u型换热管的制造工艺 |
CN113245856B (zh) * | 2021-05-06 | 2023-03-14 | 张家港保税区恒隆钢管有限公司 | 一种u型换热管的制造工艺 |
CN114871699A (zh) * | 2022-05-26 | 2022-08-09 | 中南大学 | 一种带焊接接头的高强韧性x70管线钢弯管 |
CN114871699B (zh) * | 2022-05-26 | 2023-11-24 | 中南大学 | 一种带焊接接头的高强韧性x70管线钢弯管 |
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US10494690B2 (en) | 2019-12-03 |
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JP2017524816A (ja) | 2017-08-31 |
JP6772075B2 (ja) | 2020-10-21 |
CN104046924A (zh) | 2014-09-17 |
US20180187277A1 (en) | 2018-07-05 |
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