CN113770196A - 安全气囊用精密无缝钢管加工工艺 - Google Patents
安全气囊用精密无缝钢管加工工艺 Download PDFInfo
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- CN113770196A CN113770196A CN202111081254.7A CN202111081254A CN113770196A CN 113770196 A CN113770196 A CN 113770196A CN 202111081254 A CN202111081254 A CN 202111081254A CN 113770196 A CN113770196 A CN 113770196A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 30
- 239000010959 steel Substances 0.000 title claims abstract description 30
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 238000005096 rolling process Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 238000009750 centrifugal casting Methods 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 4
- 238000003303 reheating Methods 0.000 claims abstract description 3
- 238000004513 sizing Methods 0.000 claims description 3
- 229910052796 boron Inorganic materials 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/30—Finishing tubes, e.g. sizing, burnishing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D13/00—Centrifugal casting; Casting by using centrifugal force
- B22D13/02—Centrifugal casting; Casting by using centrifugal force of elongated solid or hollow bodies, e.g. pipes, in moulds rotating around their longitudinal axis
-
- 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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
Abstract
本发明涉及一种安全气囊用精密无缝钢管加工工艺,包括下列步骤:S1:热加工,由下述质量百分比的成分构成,其中C:0.17%~0.2%,Si:0.17%~0.37%,Mn:0.35%~0.65%,S:≤0.035%,P:≤0.035%,Cr:≤0.25%,Ni:≤0.25%,Cu:≤0.25%;还含有Mo:≤0.25%,Cu:≤0.12%,N:≤0.05%,B:≤0.03%,其余部位为Fe和杂质;采用离心铸造工艺制成管坯;S2:将管坯进行加热,加热温度为1200‑1250℃,然后进行热穿孔;S3:进入连轧机进行轧管,再次加热,进行张力减径处理;S4:最后进行冷却和矫直。本发明可以制成薄壁,提供轻量化的钢管,而且不会降低其强度。
Description
技术领域
本发明涉及一种无缝钢管的加工工艺,属于冶金制造领域。
背景技术
汽车的安全气囊是现有车辆必不可少的安全措施,安全气囊可以提高安全性能,减轻人员的伤害程度。安全气囊中的蓄压器中需要使用钢管,对于这种钢管而言,要求较高的尺寸精度和强度,但是现有的安全气囊用钢管的壁厚只能控制在0.3mm左右,对于汽车的轻量化不会带来更好的帮助。
发明内容
本发明目的在于提供一种可以制成薄壁,提供轻量化的钢管,而且不会降低其强度的安全气囊用精密无缝钢管加工工艺。
为了达到上述目的,本发明的技术方案是:一种安全气囊用精密无缝钢管加工工艺,包括下列步骤:
S1:热加工,由下述质量百分比的成分构成,其中C:0.17%~0.2%,Si:0.17%~0.37%,Mn:0.35%~0.65%,S:≤0.035%,P:≤0.035%,Cr:≤0.25%,Ni:≤0.25%,Cu:≤0.25%;还含有Mo:≤0.25%,Cu:≤0.12%,N:≤0.05%,B:≤0.03%,其余部位为Fe和杂质;采用离心铸造工艺制成管坯;
S2:将管坯进行加热,加热温度为1200-1250℃,然后进行热穿孔;
S3:进入连轧机进行轧管,再次加热,进行张力减径处理;
S4:最后进行冷却和矫直。
优选的,进行所述张力减径处理后,钢管的壁厚为0.15cm。
优选的,所述张力减径处理包括钢管的定径、减径和张力减径。
优选的,所述S2中将管坯进行加热,加热温度为1250℃,并保持1分钟,再进行热穿孔处理。
优选的,所述S4中冷却采用常温冷却方式。
采用上述结构后,本发明加入在管坯中加入Mo、Cu、N和B来进行对钢管的强化,而且在加工工艺中,在减径处理中,对钢管进行再次加热来保证生产的钢管管壁控制在0.15cm,给汽车的轻量化提供助力。
具体实施方式
以下给出的实施例对本发明作进一步详细的说明。
一种安全气囊用精密无缝钢管加工工艺,包括下列步骤:
首选进行热加工,由下述质量百分比的成分构成,其中C:0.2%,Si:0.37%,Mn:0.65%,S:0.035%,P:0.035%,Cr:0.25%,Ni:0.25%,Cu:0.25%;还含有Mo:0.25%,Cu:0.12%,N:0.05%,B:0.03%,其余部位为Fe和杂质;采用离心铸造工艺制成管坯;离心铸造工艺可以不用型芯,生产出的管坯致密度较高,气孔也少,力学性能高。
将管坯进行加热,加热温度为1250℃,并保持1分钟,然后进行热穿孔;进入连轧机进行轧管,再次加热,加热温度为35℃。进行张力减径处理,张力减径处理包括钢管的定径、减径和张力减径;最后进行冷却和矫直。冷却采用常温冷却方式。
本发明加入了Mo、Cu、N和B来进行对钢管的强化,Mo可以提高刚才的强度和韧性,Cu可以提高钢材的延展性,N和B可以提高钢材的强度。
以上所述的仅是本发明的优选实施方式,应当指出,对于本领域的普通技术人员来说,在不脱离本发明创造构思的前提下,还可以做出若干变形和改进,这些都属于本发明的保护范围。
Claims (5)
1.一种安全气囊用精密无缝钢管加工工艺,其特征在于:包括下列步骤:
S1:热加工,由下述质量百分比的成分构成,其中C:0.17%~0.2%,Si:0.17%~0.37%,Mn:0.35%~0.65%,S:≤0.035%,P:≤0.035%,Cr:≤0.25%,Ni:≤0.25%,Cu:≤0.25%;还含有Mo:≤0.25%,Cu:≤0.12%,N:≤0.05%,B:≤0.03%,其余部位为Fe和杂质;采用离心铸造工艺制成管坯;
S2:将管坯进行加热,加热温度为1200-1250℃,然后进行热穿孔;
S3:进入连轧机进行轧管,再次加热,进行张力减径处理;
S4:最后进行冷却和矫直。
2.根据权利要求1所述的安全气囊用精密无缝钢管加工工艺,其特征在于:进行所述张力减径处理后,钢管的壁厚为0.15cm。
3.根据权利要求1所述的安全气囊用精密无缝钢管加工工艺,其特征在于:所述张力减径处理包括钢管的定径、减径和张力减径。
4.根据权利要求1所述的安全气囊用精密无缝钢管加工工艺,其特征在于:所述S2中将管坯进行加热,加热温度为1250℃,并保持1分钟,再进行热穿孔处理。
5.根据权利要求1所述的安全气囊用精密无缝钢管加工工艺,其特征在于:所述S4中冷却采用常温冷却方式。
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101327492A (zh) * | 2008-07-30 | 2008-12-24 | 郝建庚 | 热轧无缝钢管制造工艺及系统 |
CN103261451A (zh) * | 2010-06-03 | 2013-08-21 | 新日铁住金株式会社 | 安全气囊用钢管的制造方法 |
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 |
WO2017050227A1 (zh) * | 2015-09-24 | 2017-03-30 | 宝山钢铁股份有限公司 | 一种高强韧性无缝钢管及其制造方法 |
CN108393355A (zh) * | 2018-03-26 | 2018-08-14 | 天津商业大学 | 一种油气井用新型无缝钢管的制造方法 |
CN111979382A (zh) * | 2020-09-03 | 2020-11-24 | 衡阳华菱钢管有限公司 | 大口径薄壁无缝钢管及其制备方法 |
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- 2021-09-15 CN CN202111081254.7A patent/CN113770196A/zh active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101327492A (zh) * | 2008-07-30 | 2008-12-24 | 郝建庚 | 热轧无缝钢管制造工艺及系统 |
CN103261451A (zh) * | 2010-06-03 | 2013-08-21 | 新日铁住金株式会社 | 安全气囊用钢管的制造方法 |
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 |
WO2017050227A1 (zh) * | 2015-09-24 | 2017-03-30 | 宝山钢铁股份有限公司 | 一种高强韧性无缝钢管及其制造方法 |
CN108393355A (zh) * | 2018-03-26 | 2018-08-14 | 天津商业大学 | 一种油气井用新型无缝钢管的制造方法 |
CN111979382A (zh) * | 2020-09-03 | 2020-11-24 | 衡阳华菱钢管有限公司 | 大口径薄壁无缝钢管及其制备方法 |
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