CN111112338A - 一种无缝钢管的制造工艺 - Google Patents
一种无缝钢管的制造工艺 Download PDFInfo
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- CN111112338A CN111112338A CN201911355752.9A CN201911355752A CN111112338A CN 111112338 A CN111112338 A CN 111112338A CN 201911355752 A CN201911355752 A CN 201911355752A CN 111112338 A CN111112338 A CN 111112338A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 20
- 239000010959 steel Substances 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000002253 acid Substances 0.000 claims abstract description 7
- 238000005554 pickling Methods 0.000 claims abstract description 6
- 238000005406 washing Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 4
- 239000004519 grease Substances 0.000 claims abstract description 3
- 239000012535 impurity Substances 0.000 claims abstract description 3
- 230000008569 process Effects 0.000 claims description 5
- 238000010791 quenching Methods 0.000 claims description 2
- 230000000171 quenching effect Effects 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 5
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
- B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
- B21B19/04—Rolling basic material of solid, i.e. non-hollow, structure; Piercing, e.g. rotary piercing mills
-
- 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
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- 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
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F17/00—Multi-step processes for surface treatment of metallic material involving at least one process provided for in class C23 and at least one process covered by subclass C21D or C22F or class C25
-
- 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
- C23G3/00—Apparatus for cleaning or pickling metallic material
- C23G3/04—Apparatus for cleaning or pickling metallic material for cleaning pipes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
本发明提供了一种无缝钢管的制造工艺，其特征在于：包括以下步骤：S1：预热：将管坯放入加热炉进行预热：S2：穿孔：通过穿孔顶头对预热好的管坯进行穿孔；S3：酸洗：将穿好孔的管坯放入酸洗池中进行酸洗，去除表面的油脂和杂质：S4：热处理：将酸洗好的管坯放入加热炉中进行热处理；S5：表面磷化处理：对热处理好的管料通过磷化液进行磷化处理，通过酸洗、热处理和表面磷化处理，使得到的无缝钢管的强度、韧性和抗硫化氢应力腐蚀性能均满足市场的要求。
Description
技术领域
本发明涉及金属制造领域，尤其涉及一种无缝钢管的制造工艺。
背景技术
由整块金属制成的，表面上没有接缝的钢管，称为无缝钢管。根据生产方法不同分为热轧管、冷轧管、冷拔管、挤压管、顶管等，均有各自工艺规定。材质有普通和优质碳素结构钢、低合金钢、合金钢、不锈耐酸钢等。按用途分为一般用途的（用于输水、气管道和结构件、机械零件）和专用的（用于锅炉、地质勘探、轴承、耐酸等）两类。
随着科技的发展，市场要求无缝钢管具有更好的耐腐蚀性和机械技能。
发明内容
本发明要解决的技术问题是随着科技的发展，市场需求无缝钢管具有更好的耐腐蚀性和机械技能本发明提供了一种无缝钢管的制造工艺来解决上述问题。
本发明解决其技术问题所采用的技术方案是：一种无缝钢管的制造工艺，其特征在于：包括以下步骤： S1：预热：将管坯放入加热炉进行预热：S2：穿孔：通过穿孔顶头对预热好的管坯进行穿孔；S3：酸洗：将穿好孔的管坯放入酸洗池中进行酸洗，去除表面的油脂和杂质：S4：热处理：将酸洗好的管坯放入加热炉中进行热处理；S5：表面磷化处理：对热处理好的管料通过磷化液进行磷化处理。
进一步地：在S1中，预热温度为500℃-600℃，预热时间为10-20秒。
进一步地：在S2中，穿孔温度为1100℃-1150℃。
进一步地：在S3中，将管坯放入加热炉中加热至900-1000℃，并保温40-50分钟，然后放入油中进行快速冷却完成淬火。
本发明的有益效果是，本发明一种无缝钢管的制造工艺通过酸洗、热处理和表面磷化处理，使得到的无缝钢管的强度、韧性和抗硫化氢应力腐蚀性能均满足市场的要求。
具体实施方式
以下所述是本发明实施例的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明实施例原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本发明实施例的保护范围。
具体分析，热处理不改变工件的形状和整体的化学成分，而是通过改变工件内部的显微组织，或改变工件表面的化学成分，赋予或改善工件的使用性能。
具体分析，表面磷化处理给无缝钢管表面提供保护，在一定程度上防止金属被腐蚀；同时提高漆膜层的附着力与防腐蚀能力；在金属冷加工工艺中起减摩润滑作用。
以下结合具体实施例进一步说明本发明的有益效果。
实施例1
在S1中，预热温度为500℃，预热时间为10秒；在S3中，将管坯放入加热炉中加热至900，并保温40分钟。
实施例2
在S1中，预热温度为550℃，预热时间为15秒；在S3中，将管坯放入加热炉中加热至950℃，并保温45分钟。
实施例3
在S1中，预热温度为600℃，预热时间为20秒；在S3中，将管坯放入加热炉中加热至1000℃，并保温50分钟。
实施例1-3所述的无缝钢管性能如下表：
| 技术要求 | 抗拉强度MPa | 屈服强度MPa | 断后伸长率A/% |
| 实施例1 | 856 | 782 | 22.3 |
| 实施例2 | 850 | 788 | 22.4 |
| 实施例3 | 852 | 790 | 22.2 |
上表中的结果表明，本发明制备的无缝钢管具有优良的机械性能。
Claims (4)
1.一种无缝钢管的制造工艺，其特征在于：包括以下步骤：
S1：预热：将管坯放入加热炉进行预热，；
S2：穿孔：通过穿孔顶头对预热好的管坯进行穿孔；
S3：酸洗：将穿好孔的管坯放入酸洗池中进行酸洗，去除表面的油脂和杂质；
S4：热处理：将酸洗好的管坯放入加热炉中进行热处理；
S5：表面磷化处理：对热处理好的管料通过磷化液进行磷化处理。
2.如权利要求1所述的一种无缝钢管的制造工艺，其特征在于：在S1中，预热温度为500℃-600℃，预热时间为10-20秒。
3.如权利要求1所述的一种无缝钢管的制造工艺，其特征在于：在S2中，穿孔温度为1100℃-1150℃。
4.如权利要求1所述的一种无缝钢管的制造工艺，其特征在于：在S3中，将管坯放入加热炉中加热至900-1000℃，并保温40-50分钟，然后放入油中进行快速冷却完成淬火。
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| CN201911355752.9A CN111112338A (zh) | 2019-12-25 | 2019-12-25 | 一种无缝钢管的制造工艺 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113083904A (zh) * | 2021-05-14 | 2021-07-09 | 燕山大学 | 管材穿孔方法及装置 |
| CN113245369A (zh) * | 2021-05-19 | 2021-08-13 | 张家港保税区恒隆钢管有限公司 | 一种pmma反应器用管的制造工艺 |
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2019
- 2019-12-25 CN CN201911355752.9A patent/CN111112338A/zh not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113083904A (zh) * | 2021-05-14 | 2021-07-09 | 燕山大学 | 管材穿孔方法及装置 |
| CN113245369A (zh) * | 2021-05-19 | 2021-08-13 | 张家港保税区恒隆钢管有限公司 | 一种pmma反应器用管的制造工艺 |
| CN113245369B (zh) * | 2021-05-19 | 2022-08-09 | 张家港保税区亚鑫精密制管有限公司 | 一种pmma反应器用管的制造工艺 |
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