CN112593151A - 一种耐腐蚀无缝钢管及其制备工艺 - Google Patents

一种耐腐蚀无缝钢管及其制备工艺 Download PDF

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CN112593151A
CN112593151A CN202011351161.7A CN202011351161A CN112593151A CN 112593151 A CN112593151 A CN 112593151A CN 202011351161 A CN202011351161 A CN 202011351161A CN 112593151 A CN112593151 A CN 112593151A
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steel pipe
percent
corrosion
seamless steel
lubricant
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唐俊杰
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Hengyang Hongchang Mechanization Co ltd
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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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    • 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
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
    • B21J1/06—Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J3/00—Lubricating during forging or pressing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/10—Piercing billets
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/773—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material under reduced pressure or vacuum
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/04—Making ferrous alloys by melting
    • 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
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08—Iron or steel
    • C23G1/086—Iron or steel solutions containing HF

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Abstract

本发明涉及无缝钢管技术领域，尤其是一种耐腐蚀无缝钢管及其制备工艺，首先将上述原料冶炼成棒胚，冶炼完成后棒胚冷却到700‑800℃，然后重新对棒胚加热、穿孔、第一次酸洗、冷轧、热处理、精整、第二次酸洗，在穿孔顶头设置喷射润滑剂的装置，保证在穿孔过程中不间断将润滑剂从顶头喷出喷射在顶头与钢管之间；第一次酸洗时，酸洗液选自浓度为5％‑8％的氢氟酸与浓度为10％‑12％的硝酸的混合液；酸洗需要对钢坯从常温加热到60℃～65℃，整个酸洗过程1‑2小时。通过润滑剂在钢管内表面形成一层保护膜，既起到了冷却作用、保护了钢管内壁不被划伤，避免空气进入管壁内，进一步保证钢管的质量，使得到的钢管表面更加光滑，提高钢管的耐腐蚀性。

Description

一种耐腐蚀无缝钢管及其制备工艺
技术领域
本发明涉及无缝钢管技术领域，尤其涉及一种耐腐蚀无缝钢管及其制备工艺。
背景技术
随着时代的进步，人们对钢材的质量要求越来越高，特别是钢管的耐腐蚀性，钢管的耐腐蚀性如果不好，使用过程容易发生泄漏现象，而钢管的耐腐蚀性关键影响因素为钢管本身材质以及钢管加工的工艺。
发明内容
本发明的目的是为了解决现有技术中钢管耐腐蚀性不好的缺点，而提出的一种耐腐蚀无缝钢管及其制备工艺。
为了实现上述目的，本发明采用了如下技术方案：
一种耐腐蚀无缝钢管，钢的化学成份(质量％)为：C 0.05～0.08，Si 0.20～0.35，Mn≤0.50，P≤0.020，Al 0.40～0.80，Mo0.25～0.35，S≤0.030，Cr 20.00～22.00，Ce 0.02～0.06，其余为Fe。
一种耐腐蚀无缝钢管制备工艺，包括以下步骤：首先将上述原料冶炼成棒胚，冶炼完成后棒胚冷却到700-800℃，然后重新对棒胚加热、穿孔、第一次酸洗、冷轧、热处理、精整、第二次酸洗，将棒料加热穿孔，加热温度为1100-1200℃；加热时间30-50分钟；管坯加热两端部温差不大于20℃，且穿孔时，在穿孔顶头设置喷射润滑剂的装置，保证在穿孔过程中不间断将润滑剂从顶头喷出喷射在顶头与钢管之间；第一次酸洗时，酸洗液选自浓度为5％-8％的氢氟酸与浓度为10％-12％的硝酸的混合液；酸洗需要对钢坯从常温加热到60℃～65℃，整个酸洗过程1-2小时。
喷射的润滑剂重量百分比如下：工业牛油8-10％、石墨20-30％二甲基硅油0.05-0.1％、其余为玻璃粉。
棒胚加热、穿孔、酸洗冷轧、热处理均在真空条件下进行。
本发明提出的一种耐腐蚀无缝钢管及其制备工艺，有益效果在于：通过润滑剂在钢管内表面形成一层保护膜，既起到了冷却作用、保护了钢管内壁不被划伤，同时棒胚加热、穿孔、酸洗冷轧、热处理均在真空条件下进行，避免空气进入管壁内，进一步保证钢管的质量，使得到的钢管表面更加光滑，提高钢管的耐腐蚀性。
具体实施方式
下面本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。
一种耐腐蚀无缝钢管，钢的化学成份(质量％)为：C 0.05～0.08，Si 0.20～0.35，Mn≤0.50，P≤0.020，Al 0.40～0.80，Mo0.25～0.35，S≤0.030，Cr 20.00～22.00，Ce 0.02～0.06，其余为Fe，CrMoAl钢的焊接性能良好，保证钢管与钢管之间连接更加牢靠，避免使用过程中泄漏。
一种耐腐蚀无缝钢管制备工艺，包括以下步骤：首先将上述原料冶炼成棒胚，冶炼完成后棒胚冷却到700-800℃，然后重新对棒胚加热、穿孔、第一次酸洗、冷轧、热处理、精整、第二次酸洗，将棒料加热穿孔，加热温度为1100-1200℃；加热时间30-50分钟；管坯加热两端部温差不大于20℃，且穿孔时，在穿孔顶头设置喷射润滑剂的装置，保证在穿孔过程中不间断将润滑剂从顶头喷出喷射在顶头与钢管之间；第一次酸洗时，酸洗液选自浓度为5％-8％的氢氟酸与浓度为10％-12％的硝酸的混合液；酸洗需要对钢坯从常温加热到60℃～65℃，整个酸洗过程1-2小时。
喷射的润滑剂重量百分比如下：工业牛油8-10％、石墨20-30％二甲基硅油0.05-0.1％、其余为玻璃粉。
棒胚加热、穿孔、酸洗冷轧、热处理均在真空条件下进行。
通过润滑剂在钢管内表面形成一层保护膜，既起到了冷却作用、保护了钢管内壁不被划伤，同时棒胚加热、穿孔、酸洗冷轧、热处理均在真空条件下进行，避免空气进入管壁内，进一步保证钢管的质量，使得到的钢管表面更加光滑，提高钢管的耐腐蚀性。
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，根据本发明的技术方案及其发明构思加以等同替换或改变，都应涵盖在本发明的保护范围之内。

Claims (4)

1.一种耐腐蚀无缝钢管，其特征在于，钢的化学成份(质量％)为：C 0.05～0.08，Si0.20～0.35，Mn≤0.50，P≤0.020，Al 0.40～0.80，Mo0.25～0.35，S≤0.030，Cr 20.00～22.00，Ce 0.02～0.06，其余为Fe。
2.一种耐腐蚀无缝钢管制备工艺，包括以下步骤：首先将上述原料冶炼成棒胚，冶炼完成后棒胚冷却到700-800℃，然后重新对棒胚加热、穿孔、第一次酸洗、冷轧、热处理、精整、第二次酸洗，其特征在于，将棒料加热穿孔，加热温度为1100-1200℃；加热时间30-50分钟；管坯加热两端部温差不大于20℃，且穿孔时，在穿孔顶头设置喷射润滑剂的装置，保证在穿孔过程中不间断将润滑剂从顶头喷出喷射在顶头与钢管之间；第一次酸洗时，酸洗液选自浓度为5％-8％的氢氟酸与浓度为10％-12％的硝酸的混合液；酸洗需要对钢坯从常温加热到60℃～65℃，整个酸洗过程1-2小时。
3.根据权利要求2所述的一种耐腐蚀无缝钢管制备工艺，其特征在于，喷射的润滑剂重量百分比如下：工业牛油8-10％、石墨20-30％二甲基硅油0.05-0.1％、其余为玻璃粉。
4.根据权利要求2所述的一种耐腐蚀无缝钢管制备工艺，其特征在于，棒胚加热、穿孔、酸洗冷轧、热处理均在真空条件下进行。
CN202011351161.7A 2020-11-26 2020-11-26 一种耐腐蚀无缝钢管及其制备工艺 Pending CN112593151A (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1213587A (zh) * 1997-02-28 1999-04-14 于西纳公司 制造高铝含量铁素体不锈钢箔的方法
JP2009197306A (ja) * 2008-02-25 2009-09-03 Jfe Steel Corp 高温強度と靭性に優れるフェライト系ステンレス鋼
CN104059740A (zh) * 2014-06-28 2014-09-24 张家港市华程异型钢管有限公司 异型钢管冷拔生产用润滑剂
CN105033584A (zh) * 2015-07-31 2015-11-11 湖州高林不锈钢管制造有限公司 一种耐热不锈钢无缝钢管制造方法
CN106311797A (zh) * 2016-08-30 2017-01-11 安吉县鹏大钢管有限公司 一种齿轮钢无缝管的制备工艺

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1213587A (zh) * 1997-02-28 1999-04-14 于西纳公司 制造高铝含量铁素体不锈钢箔的方法
JP2009197306A (ja) * 2008-02-25 2009-09-03 Jfe Steel Corp 高温強度と靭性に優れるフェライト系ステンレス鋼
CN104059740A (zh) * 2014-06-28 2014-09-24 张家港市华程异型钢管有限公司 异型钢管冷拔生产用润滑剂
CN105033584A (zh) * 2015-07-31 2015-11-11 湖州高林不锈钢管制造有限公司 一种耐热不锈钢无缝钢管制造方法
CN106311797A (zh) * 2016-08-30 2017-01-11 安吉县鹏大钢管有限公司 一种齿轮钢无缝管的制备工艺

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