CN105779870B - A kind of explosion lead Ultra-low carbon wire rod and its production method - Google Patents
A kind of explosion lead Ultra-low carbon wire rod and its production method Download PDFInfo
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- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 47
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 43
- 238000004880 explosion Methods 0.000 title claims 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000000203 mixture Substances 0.000 claims abstract description 32
- 229910052742 iron Inorganic materials 0.000 claims abstract description 29
- 238000005096 rolling process Methods 0.000 claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 27
- 239000010959 steel Substances 0.000 claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 238000003723 Smelting Methods 0.000 claims abstract description 21
- 239000012535 impurity Substances 0.000 claims abstract description 19
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 19
- 238000001816 cooling Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 15
- 239000000126 substance Substances 0.000 claims abstract description 13
- 238000012545 processing Methods 0.000 claims abstract description 6
- 238000005266 casting Methods 0.000 claims abstract 2
- 238000007670 refining Methods 0.000 claims description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 5
- 238000005457 optimization Methods 0.000 claims 2
- 230000003009 desulfurizing effect Effects 0.000 claims 1
- 238000005422 blasting Methods 0.000 abstract description 32
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract description 13
- 238000010583 slow cooling Methods 0.000 abstract description 8
- 238000009987 spinning Methods 0.000 description 13
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 6
- 238000007664 blowing Methods 0.000 description 6
- 238000006477 desulfuration reaction Methods 0.000 description 6
- 230000023556 desulfurization Effects 0.000 description 6
- 238000004321 preservation Methods 0.000 description 6
- 238000011143 downstream manufacturing Methods 0.000 description 4
- 238000009749 continuous casting Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 238000012356 Product development Methods 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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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
- C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
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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
- C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
- C21D8/065—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires of ferrous alloys
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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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- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
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- Physics & Mathematics (AREA)
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- Crystallography & Structural Chemistry (AREA)
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Abstract
本发明提供一种爆破引线用超低碳盘条及其生产方法，属于钢铁冶炼和高速线材轧制技术领域，所述超低碳盘条化学成分及其质量百分比如下:C≤0.012%，Si≤0.012%，Mn:0.15‑0.30%,P≤0.015%,S≤0.010%,余量为铁和不可避免的杂质。具体生产工序由制造优化成分的铸坯、钢坯加热、线材轧制、线材冷却、缓冷工艺工序组成。该生产方法保证盘条抗拉强度≤310MPa，伸长率≥45%，导电率稳定控制在14.5%‑15.0%范围内。经拉拔、热处理后，其爆破线成品在直径为0.52‑0.54mm的条件下，回弹角＜58°，电阻满足0.50‑0.60Ω/m的要求，满足爆破引线的加工要求及其技术指标要求。The invention provides an ultra-low-carbon wire rod for blasting lead wire and a production method thereof, which belong to the technical field of iron and steel smelting and high-speed wire rolling. The chemical composition and mass percentage of the ultra-low-carbon wire rod are as follows: C≤0.012%, Si ≤0.012%, Mn:0.15‑0.30%, P≤0.015%, S≤0.010%, the balance is iron and unavoidable impurities. The specific production process consists of casting slabs with optimized components, slab heating, wire rolling, wire cooling, and slow cooling processes. The production method ensures that the tensile strength of the wire rod is ≤310MPa, the elongation is ≥45%, and the electrical conductivity is stably controlled within the range of 14.5%-15.0%. After drawing and heat treatment, the finished blasting wire has a rebound angle of <58° under the condition of a diameter of 0.52-0.54mm, and the resistance meets the requirements of 0.50-0.60Ω/m, which meets the processing requirements and technical indicators of the blasting lead. Require.
Description
技术领域technical field
本发明属于钢铁冶炼和高速线材轧制技术领域，具体涉及一种爆破引线用超低碳盘条及其生产方法。The invention belongs to the technical field of iron and steel smelting and high-speed wire rolling, and in particular relates to an ultra-low-carbon wire rod for blasting lead wire and a production method thereof.
背景技术Background technique
爆破引线用热轧盘条因其下游加工成品所在行业的特殊性，要求盘条本身具有精准的导电率值范围区间和良好的综合力学性能和拉拔性能，使其加工后成品在直径为0.52-0.54mm的条件下，回弹角＜58°，电阻满足0.50-0.60Ω/m的要求。Due to the particularity of the industry where the downstream processed finished product is located, the hot-rolled wire rod for blasting lead wire requires the wire rod itself to have a precise range of electrical conductivity values and good comprehensive mechanical properties and drawability, so that the finished product after processing has a diameter of 0.52 Under the condition of -0.54mm, the rebound angle is less than 58°, and the resistance meets the requirement of 0.50-0.60Ω/m.
目前市场上的爆破线大多使用低碳钢盘条，而低碳钢盘条用于生产爆破线存在以下缺点和不足：1、低碳钢盘条变形抗力较高，经拉拔后其爆破线成品丝柔软度较差，很难满足回弹角＜58°的要求；2、下游加工工艺对于低碳钢盘条的原始尺寸限制较大，仅可使用直径5.5mm的低碳钢盘条；3、对夹杂物水平要求严格。Most of the blasting lines currently on the market use low-carbon steel wire rods, and low-carbon steel wire rods have the following disadvantages and deficiencies in the production of blasting lines: 1. Low-carbon steel wire rods have high deformation resistance, and the blasting wires after drawing The softness of the finished wire is poor, and it is difficult to meet the requirement of springback angle <58°; 2. The downstream processing technology has a large limit on the original size of low-carbon steel wire rod, and only low-carbon steel wire rod with a diameter of 5.5mm can be used; 3. Strict requirements on the level of inclusions.
专利201310401021.X公开了“一种导电用超低碳钢盘条及其生产方法”，其冶炼方法为转炉+RH炉精炼，且导电率要求≥15.0%；超低碳相关专利的Mn含量控制均为越低越好，如Mn≤0.008%，且无导电率要求；论文《BP05爆破引线用盘条生产实践》公开的爆破引线用盘条的碳含量为0.030-0.050%，对成品的低倍组织、夹杂物水平要求严格，且只针对Φ5.5mm规格线材。论文《高线盘条产品开发和研究》公开的铜包钢丝盘条的导电率要求≥16.0%。Patent 201310401021.X discloses "an ultra-low carbon steel wire rod for electric conduction and its production method", the smelting method is converter + RH furnace refining, and the conductivity requirement is ≥ 15.0%; Mn content control of ultra-low carbon related patents The lower the better, such as Mn≤0.008%, and there is no requirement for electrical conductivity; the paper "BP05 Production Practice of Blasting Lead Wire Rod" discloses that the carbon content of the blasting lead wire rod is 0.030-0.050%, which is low for the finished product. The double structure and inclusion level are strictly required, and only for Φ5.5mm specification wire. The electrical conductivity requirement of the copper-clad steel wire rod disclosed in the thesis "High Line Wire Rod Product Development and Research" is ≥16.0%.
针对上述缺点，需要开发一种综合力学性能和拉拔性能良好的超低碳盘条，通过化学成分的合理设计和准确控制后可满足导电率要求，且对原始盘条尺寸和夹杂物水平以及下游加工工艺的包容性高。In view of the above shortcomings, it is necessary to develop an ultra-low carbon wire rod with good comprehensive mechanical properties and drawability, which can meet the requirements of electrical conductivity through reasonable design and accurate control of chemical composition, and the size of the original wire rod and the level of inclusions and The inclusiveness of downstream processing technology is high.
发明内容Contents of the invention
为解决本领域中存在的上述技术缺陷,本发明提供一种爆破引线用超低碳盘条及其生产方法,该方法生产的超低碳盘条,通过优化成分设计和轧制工艺实现超低碳盘条导电率的精准控制和并获得良好的综合力学性能和拉拔性能。本发明生产的爆破引线用盘条可满足爆破线的加工要求及其技术指标要求。In order to solve the above-mentioned technical defects in this field, the present invention provides an ultra-low carbon wire rod for blasting lead wire and its production method. The ultra-low carbon wire rod produced by this method realizes ultra-low carbon Precise control of electrical conductivity of carbon wire rod and good comprehensive mechanical properties and drawability. The wire rod for blasting lead wire produced by the invention can meet the processing requirements and technical index requirements of the blasting wire.
为解决上述技术问题，本发明提供如下技术方案：In order to solve the above technical problems, the present invention provides the following technical solutions:
一种爆破引线用超低碳盘条,所述超低碳盘条化学成分及其质量百分比如下: C≤0.012%，Si≤0.012%，Mn:0.15-0.30%, P≤0.015%,S≤0.010%,余量为铁和不可避免的杂质。An ultra-low carbon wire rod for blasting wire, the chemical composition and mass percentage of the ultra-low carbon wire rod are as follows: C≤0.012%, Si≤0.012%, Mn:0.15-0.30%, P≤0.015%, S≤ 0.010%, the balance is iron and unavoidable impurities.
本发明所述超低碳盘条化学成分及其质量百分比如下: C：0.002%，Si：0.010%，Mn：0.30%, P：0.008%,S：0.005%,其余为铁和不可避免的杂质。The chemical composition and mass percentage of the ultra-low carbon wire rod of the present invention are as follows: C: 0.002%, Si: 0.010%, Mn: 0.30%, P: 0.008%, S: 0.005%, and the rest are iron and unavoidable impurities .
本发明所述超低碳盘条化学成分及其质量百分比如下: C：0.008%，Si：0.005%，Mn：0.20%, P：0.005%,S：0.010%,余量为铁和不可避免的杂质。The chemical composition and mass percentage of the ultra-low carbon wire rod described in the present invention are as follows: C: 0.008%, Si: 0.005%, Mn: 0.20%, P: 0.005%, S: 0.010%, and the balance is iron and unavoidable Impurities.
本发明所述超低碳盘条化学成分及其质量百分比如下: C：0.012%，Si：0.006%，Mn：0.15%, P：0.005%,S：0.005%,余量为铁和不可避免的杂质。The chemical composition and mass percentage of the ultra-low carbon wire rod described in the present invention are as follows: C: 0.012%, Si: 0.006%, Mn: 0.15%, P: 0.005%, S: 0.005%, and the balance is iron and unavoidable Impurities.
本发明所述超低碳盘条化学成分及其质量百分比如下: C：0.005%，Si：0.012%，Mn：0.18%, P：0.015%,S：0.007%,余量为铁和不可避免的杂质。The chemical composition and mass percentage of the ultra-low carbon wire rod described in the present invention are as follows: C: 0.005%, Si: 0.012%, Mn: 0.18%, P: 0.015%, S: 0.007%, and the balance is iron and unavoidable Impurities.
本发明所述超低碳盘条化学成分及其质量百分比如下: C：0.006%，Si：0.007%，Mn：0.25%, P：0.006%,S：0.006%,余量为铁和不可避免的杂质。The chemical composition and mass percentage of the ultra-low carbon wire rod described in the present invention are as follows: C: 0.006%, Si: 0.007%, Mn: 0.25%, P: 0.006%, S: 0.006%, and the balance is iron and unavoidable Impurities.
本发明所述爆破引线用超低碳盘条的规格为Φ5.5mm或Φ6.5mm。The specification of the ultra-low carbon wire rod for the blasting lead wire in the present invention is Φ5.5mm or Φ6.5mm.
本发明所述爆破引线用超低碳盘条的抗拉强度≤310MPa，伸长率≥45%，导电率14.5-15.0%。The tensile strength of the ultra-low carbon wire rod for the blasting lead in the invention is ≤310MPa, the elongation is ≥45%, and the electrical conductivity is 14.5-15.0%.
本发明还提供一种上述爆破引线用超低碳盘条的生产方法，具体工艺步骤如下：The present invention also provides a method for producing the above-mentioned ultra-low carbon wire rod for the blasting lead, the specific process steps are as follows:
（1）制造优化成分的铸坯(1) Manufacture of billet with optimized composition
按要求冶炼钢水及连铸成钢坯，其成分按重量百分比为C≤0.012%，Si≤0.012%，Mn：0.15-0.30%, P≤0.015%,S≤0.010%,余量为铁和不可避免的杂质；Smelt molten steel and continuously cast steel billets according to requirements, the composition of which is C≤0.012%, Si≤0.012%, Mn: 0.15-0.30%, P≤0.015%, S≤0.010%, and the balance is iron and unavoidable impurities;
（2）钢坯加热(2) billet heating
钢坯进行入加热炉中首先预热到1080±10℃，然后加热到1100℃保温，钢坯在加热炉内的总时间为90-120min，炉内氧含量≤7%；When the steel billet is put into the heating furnace, it is first preheated to 1080±10°C, and then heated to 1100°C for heat preservation. The total time of the billet in the heating furnace is 90-120min, and the oxygen content in the furnace is ≤7%;
（3）线材轧制(3) Wire rolling
加热后的钢坯进行轧制，高温终轧：进精轧温度为960±10℃；高温吐丝：吐丝温度为930±10℃；The heated slab is rolled, high-temperature final rolling: the temperature for finishing rolling is 960±10°C; high-temperature spinning: the spinning temperature is 930±10°C;
（4）线材冷却(4) Wire cooling
缓冷工艺：保温罩全部闭，冷却风机全部关闭，平均辊道速度为0.40m/s。Slow cooling process: all insulation covers are closed, all cooling fans are closed, and the average roller speed is 0.40m/s.
本发明所述步骤（1）制造优化成分的铸坯，冶炼时，可依次通过铁水脱硫处理、AOD转炉和顶底复吹转炉冶炼、LF炉精炼和RH真空精炼工序。The step (1) of the present invention manufactures a slab with an optimized composition, and during smelting, it can sequentially go through molten iron desulfurization treatment, AOD converter and top-bottom combined blowing converter smelting, LF furnace refining and RH vacuum refining process.
本发明的原理：根据铁中各元素含量和电阻系数的关系，通过合理的成分设计实现盘条导电率范围的精准控制；同时超低碳的成分控制，为盘条提供了良好的可拉拔性；合理的加热温度既可为后续轧制工艺的实现提供保证，又可使钢坯组织充分奥氏体化，同时避免晶粒过度长大；通过高温终轧、高温吐丝以及轧后缓冷工艺有效保证盘条良好的综合力学性能。The principle of the invention: according to the relationship between the content of each element in iron and the resistivity, the precise control of the conductivity range of the wire rod is realized through reasonable composition design; at the same time, the composition control of ultra-low carbon provides a good drawability for the wire rod A reasonable heating temperature can not only guarantee the realization of the subsequent rolling process, but also make the billet structure fully austenitized, and avoid excessive grain growth; through high-temperature final rolling, high-temperature spinning and slow cooling after rolling The process effectively guarantees the good comprehensive mechanical properties of the wire rod.
采用上述技术方案所产生的有益效果在于：1、本发明通过合理的成分设计和轧制工艺实现超低碳盘条导电率的精准控制并获得良好的综合力学性能和拉拔性能。该生产方法保证盘条抗拉强度≤310MPa，伸长率≥45%，导电率稳定控制在14.5%-15.0%范围内，满足爆破线的加工要求及其技术指标要求。2、盘条经拉拔、热处理后，其爆破线成品在直径为0.52-0.54mm的条件下，回弹角＜58°，电阻满足0.50-0.60Ω/m的要求，满足爆破线的加工要求及其技术指标要求。3、本发明可有效解决爆破线成品丝柔软度较差，且对原始盘条的尺寸、夹杂物水平以及下游加工工艺的包容性低的问题。The beneficial effects of adopting the above technical solution are as follows: 1. The present invention realizes the precise control of the electrical conductivity of the ultra-low carbon wire rod and obtains good comprehensive mechanical properties and drawing properties through reasonable composition design and rolling process. The production method ensures that the tensile strength of the wire rod is ≤310MPa, the elongation is ≥45%, and the electrical conductivity is stably controlled within the range of 14.5%-15.0%, which meets the processing requirements and technical index requirements of the blasting line. 2. After the wire rod is drawn and heat-treated, the blasting wire finished product has a diameter of 0.52-0.54mm, the rebound angle is less than 58°, and the resistance meets the requirements of 0.50-0.60Ω/m, which meets the processing requirements of the blasting wire. and its technical specification requirements. 3. The present invention can effectively solve the problems of poor softness of the finished wire of the blasting wire and low tolerance to the size of the original wire rod, the level of inclusions and the downstream processing technology.
具体实施方式Detailed ways
下面结合具体实施例对本发明作进一步详细的说明。The present invention will be described in further detail below in conjunction with specific embodiments.
实施例1：Example 1:
本实施例制造的是一种爆破引线用超低碳盘条包括下述步骤：What the present embodiment manufactures is a kind of ultra-low carbon wire rod for blasting lead and comprises the following steps:
（1）制造优化成分的铸坯(1) Manufacture of billet with optimized composition
冶炼钢水及连铸成钢坯，其成分按重量百分比为C：0.002%，Si：0.010%，Mn：0.30%,P：0.008%,S：0.005%,其余为铁和不可避免的杂质。Smelting molten steel and continuous casting into billets, its composition by weight percentage is C: 0.002%, Si: 0.010%, Mn: 0.30%, P: 0.008%, S: 0.005%, and the rest is iron and unavoidable impurities.
冶炼时，可依次通过铁水脱硫处理、AOD转炉和顶底复吹转炉冶炼、LF炉精炼和RH真空精炼。During smelting, it can go through molten iron desulfurization treatment, AOD converter and top-bottom combined blowing converter smelting, LF furnace refining and RH vacuum refining in sequence.
（2）钢坯加热(2) billet heating
钢钢坯进行入加热炉中首先预热到1090℃，然后加热到1100℃保温，钢坯在加热炉内的总时间为90min，炉内氧含量5%。The steel slab is put into the heating furnace, first preheated to 1090°C, and then heated to 1100°C for heat preservation. The total time of the steel billet in the heating furnace is 90min, and the oxygen content in the furnace is 5%.
（3）线材轧制(3) Wire rolling
爆破引线用超低碳盘条的规格为Φ6.5mm。The specification of ultra-low carbon wire rod for blasting lead wire is Φ6.5mm.
高温终轧：进精轧温度为960℃；High-temperature final rolling: the temperature for finishing rolling is 960°C;
高温吐丝：吐丝温度为930℃。High-temperature spinning: the spinning temperature is 930°C.
（4）线材冷却(4) Wire cooling
缓冷工艺：保温罩全部闭，冷却风机全部关闭，平均辊道速度为0.40m/s。Slow cooling process: all insulation covers are closed, all cooling fans are closed, and the average roller speed is 0.40m/s.
（5）成品性能(5) Finished product performance
抗拉强度291MPa，伸长率46%，导电率15.0%。The tensile strength is 291MPa, the elongation is 46%, and the electrical conductivity is 15.0%.
实施例2：Example 2:
本实施例制造的是一种爆破引线用超低碳盘条包括下述步骤：What the present embodiment manufactures is a kind of ultra-low carbon wire rod for blasting lead and comprises the following steps:
（1）制造优化成分的铸坯(1) Manufacture of billet with optimized composition
冶炼钢水及连铸成钢坯，其成分按重量百分比为C：0.008%，Si：0.005%，Mn：0.20%,P：0.005%,S：0.010%,其余为铁和不可避免的杂质。The molten steel is smelted and continuously cast into billets. The composition is C: 0.008%, Si: 0.005%, Mn: 0.20%, P: 0.005%, S: 0.010%, and the rest is iron and unavoidable impurities.
冶炼时，可依次通过铁水脱硫处理、AOD转炉和顶底复吹转炉冶炼、LF炉精炼和RH真空精炼。During smelting, it can go through molten iron desulfurization treatment, AOD converter and top-bottom combined blowing converter smelting, LF furnace refining and RH vacuum refining in sequence.
（2）钢坯加热(2) billet heating
钢钢坯进行入加热炉中首先预热到1070℃，然后加热到1100℃保温，钢坯在加热炉内的总时间为100min，炉内氧含量7%。The steel billet is put into the heating furnace, firstly preheated to 1070°C, and then heated to 1100°C for heat preservation. The total time of the billet in the heating furnace is 100min, and the oxygen content in the furnace is 7%.
（3）线材轧制(3) Wire rolling
爆破引线用超低碳盘条的规格为Φ6.5mm。The specification of ultra-low carbon wire rod for blasting lead wire is Φ6.5mm.
高温终轧：进精轧温度为950℃；High-temperature final rolling: the temperature for finishing rolling is 950°C;
高温吐丝：吐丝温度为935℃。High-temperature spinning: the spinning temperature is 935°C.
（4）线材冷却(4) Wire cooling
缓冷工艺：保温罩全部闭，冷却风机全部关闭，平均辊道速度为0.40m/s。Slow cooling process: all insulation covers are closed, all cooling fans are closed, and the average roller speed is 0.40m/s.
（5）成品性能(5) Finished product performance
抗拉强度299MPa，伸长率48%，导电率14.8%。The tensile strength is 299MPa, the elongation is 48%, and the electrical conductivity is 14.8%.
实施例3：Example 3:
本实施例制造的是一种爆破引线用超低碳盘条包括下述步骤：What the present embodiment manufactures is a kind of ultra-low carbon wire rod for blasting lead and comprises the following steps:
（1）制造优化成分的铸坯(1) Manufacture of billet with optimized composition
冶炼钢水及连铸成钢坯，其成分按重量百分比为C：0.012%，Si：0.006%，Mn：0.15%,P：0.005%,S：0.005%,其余为铁和不可避免的杂质。The molten steel is smelted and continuously cast into billets, and its composition is C: 0.012%, Si: 0.006%, Mn: 0.15%, P: 0.005%, S: 0.005%, and the rest is iron and unavoidable impurities.
冶炼时，可依次通过铁水脱硫处理、AOD转炉和顶底复吹转炉冶炼、LF炉精炼和RH真空精炼。During smelting, it can go through molten iron desulfurization treatment, AOD converter and top-bottom combined blowing converter smelting, LF furnace refining and RH vacuum refining in sequence.
（2）钢坯加热(2) billet heating
钢钢坯进行入加热炉中首先预热到1080℃，然后加热到1100℃保温，钢坯在加热炉内的总时间为120min，炉内氧含量5%。The steel slab is put into the heating furnace, first preheated to 1080°C, and then heated to 1100°C for heat preservation. The total time of the steel billet in the heating furnace is 120min, and the oxygen content in the furnace is 5%.
（3）线材轧制(3) Wire rolling
爆破引线用超低碳盘条的规格为Φ5.5mm。The specification of ultra-low carbon wire rod for blasting lead wire is Φ5.5mm.
高温终轧：进精轧温度为970℃；High-temperature final rolling: the temperature for finishing rolling is 970°C;
高温吐丝：吐丝温度为940℃。High-temperature spinning: the spinning temperature is 940°C.
（4）线材冷却(4) Wire cooling
缓冷工艺：保温罩全部闭，冷却风机全部关闭，平均辊道速度为0.40m/s。Slow cooling process: all insulation covers are closed, all cooling fans are closed, and the average roller speed is 0.40m/s.
（5）成品性能(5) Finished product performance
抗拉强度305MPa，伸长率46%，导电率14.5%。The tensile strength is 305MPa, the elongation is 46%, and the electrical conductivity is 14.5%.
实施例4：Example 4:
本实施例制造的是一种爆破引线用超低碳盘条包括下述步骤：What the present embodiment manufactures is a kind of ultra-low carbon wire rod for blasting lead and comprises the following steps:
（1）制造优化成分的铸坯(1) Manufacture of billet with optimized composition
冶炼钢水及连铸成钢坯，其成分按重量百分比为C：0.005%，Si：0.012%，Mn：0.18%,P：0.015%,S：0.007%,其余为铁和不可避免的杂质。Smelting molten steel and continuous casting into billets, its composition by weight percentage is C: 0.005%, Si: 0.012%, Mn: 0.18%, P: 0.015%, S: 0.007%, and the rest is iron and unavoidable impurities.
冶炼时，可依次通过铁水脱硫处理、AOD转炉和顶底复吹转炉冶炼、LF炉精炼和RH真空精炼。During smelting, it can go through molten iron desulfurization treatment, AOD converter and top-bottom combined blowing converter smelting, LF furnace refining and RH vacuum refining in sequence.
（2）钢坯加热(2) billet heating
钢钢坯进行入加热炉中首先预热到1085℃，然后加热到1100℃保温，钢坯在加热炉内的总时间为110min，炉内氧含量6%。The steel slab is put into the heating furnace, first preheated to 1085°C, and then heated to 1100°C for heat preservation. The total time of the steel billet in the heating furnace is 110min, and the oxygen content in the furnace is 6%.
（3）线材轧制(3) Wire rolling
爆破引线用超低碳盘条的规格为Φ6.5mm。The specification of ultra-low carbon wire rod for blasting lead wire is Φ6.5mm.
高温终轧：进精轧温度为965℃；High-temperature final rolling: the temperature for finishing rolling is 965°C;
高温吐丝：吐丝温度为920℃。High-temperature spinning: the spinning temperature is 920°C.
（4）线材冷却(4) Wire cooling
缓冷工艺：保温罩全部闭，冷却风机全部关闭，平均辊道速度为0.40m/sSlow cooling process: all insulation covers are closed, all cooling fans are closed, and the average roller speed is 0.40m/s
（5）成品性能(5) Finished product performance
抗拉强度294MPa，伸长率48%，导电率14.7%。The tensile strength is 294MPa, the elongation is 48%, and the electrical conductivity is 14.7%.
实施例5：Example 5:
本实施例制造的是一种爆破引线用超低碳盘条包括下述步骤：What the present embodiment manufactures is a kind of ultra-low carbon wire rod for blasting lead and comprises the following steps:
（1）制造优化成分的铸坯(1) Manufacture of billet with optimized composition
冶炼钢水及连铸成钢坯，其成分按重量百分比为C：0.006%，Si：0.007%，Mn：0.25%,P：0.006%,S：0.006%,其余为铁和不可避免的杂质。Smelting molten steel and continuous casting into billets, its composition by weight percentage is C: 0.006%, Si: 0.007%, Mn: 0.25%, P: 0.006%, S: 0.006%, and the rest is iron and unavoidable impurities.
冶炼时，可依次通过铁水脱硫处理、AOD转炉和顶底复吹转炉冶炼、LF炉精炼和RH真空精炼。During smelting, it can go through molten iron desulfurization treatment, AOD converter and top-bottom combined blowing converter smelting, LF furnace refining and RH vacuum refining in sequence.
（2）钢坯加热(2) billet heating
钢钢坯进行入加热炉中首先预热到1075℃，然后加热到1100℃保温，钢坯在加热炉内的总时间为105min，炉内氧含量4%。The steel slab is put into the heating furnace, first preheated to 1075°C, and then heated to 1100°C for heat preservation. The total time of the steel billet in the heating furnace is 105min, and the oxygen content in the furnace is 4%.
（3）线材轧制(3) Wire rolling
爆破引线用超低碳盘条的规格为Φ5.5mm。The specification of ultra-low carbon wire rod for blasting lead wire is Φ5.5mm.
高温终轧：进精轧温度为955℃；High-temperature final rolling: the temperature for finishing rolling is 955°C;
高温吐丝：吐丝温度为925℃。High-temperature spinning: the spinning temperature is 925°C.
（4）线材冷却(4) Wire cooling
缓冷工艺：保温罩全部闭，冷却风机全部关闭，平均辊道速度为0.40m/sSlow cooling process: all insulation covers are closed, all cooling fans are closed, and the average roller speed is 0.40m/s
（5）成品性能(5) Finished product performance
抗拉强度302MPa，伸长率50%，导电率14.7%。The tensile strength is 302MPa, the elongation is 50%, and the electrical conductivity is 14.7%.
本发明在严峻的钢铁形势下，提供一种对原始盘条的尺寸、夹杂物水平以及下游加工工艺的包容性高的爆破引线用超低碳盘条，可实现钢铁厂和下游用户的双赢效果。Under the severe steel situation, the present invention provides an ultra-low-carbon wire rod for blasting leads that is highly tolerant to the size of the original wire rod, the level of inclusions, and the downstream processing technology, which can achieve a win-win effect for steel plants and downstream users .
以上实施例仅用以说明而非限制本发明的技术方案，尽管参照上述实施例对本发明进行了详细说明，本领域的普通技术人员应当理解：依然可以对本发明进行修改或者等同替换，而不脱离本发明的精神和范围的任何修改或局部替换，其均应涵盖在本发明的权利要求范围当中。The above embodiments are only used to illustrate and not limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention can still be modified or equivalently replaced without departing from Any modifications or partial replacements within the spirit and scope of the present invention shall fall within the scope of the claims of the present invention.
Claims (6)
- A kind of 1. production method of explosion lead Ultra-low carbon wire rod, it is characterised in that the Ultra-low carbon wire rod chemical composition and Its mass percent is as follows:C≤0.012%, Si≤0.012%, Mn:0.18-0.30%, P≤0.015%, S≤0.010% are remaining Measure as iron and inevitable impurity；The explosion lead is Φ 5.5mm or Φ 6.5mm with the specification of Ultra-low carbon wire rod；It is described Tensile strength≤310MPa of explosion lead Ultra-low carbon wire rod, elongation >=45%, conductance 14.5-15.0%, concrete technology Step is as follows：（1）The strand of manufacture optimization compositionSmelting molten steel and steel billet is casting continuously to form on request, its composition is C≤0.012%, Si≤0.012%, Mn by weight percentage： 0.15-0.30%, P≤0.015%, S≤0.010%, surplus are iron and inevitable impurity；（2）Heating steel billetSteel billet carries out being initially pre-heated to 1080 ± 10 DEG C in heating furnace, is then heated to 1100 DEG C of insulations, steel billet is in heating furnace Interior total time is 90-120min, oxygen content≤7% in stove；（3）Wire rod rollingSteel billet after heating is rolled, high-temperature final rolling：Enter final rolling temperature for 960 ± 10 DEG C；High temperature spins：Laying temperature is 930±10℃；（4）Wire rod cools downRetarded cooling process：Stay-warm case all closes, cooling blower Close All, and average roller table speed is 0.40m/s.
- 2. the production method of explosion lead Ultra-low carbon wire rod according to claim 1, it is characterised in that the step （1）The strand of manufacture optimization composition, during smelting, pass sequentially through desulfurizing iron processing, AOD converters and top and bottom combined blown converter smelting, LF stoves refine and RH vacuum refining processes.
- A kind of 3. production method of explosion lead Ultra-low carbon wire rod according to claim 1 or 2, it is characterised in that institute State Ultra-low carbon wire rod chemical composition and its mass percent is as follows:C：0.002%, Si：0.010%, Mn：0.30%, P：0.008%, S：0.005%, remaining is iron and inevitable impurity.
- A kind of 4. production method of explosion lead Ultra-low carbon wire rod according to claim 1 or 2, it is characterised in that institute State Ultra-low carbon wire rod chemical composition and its mass percent is as follows: C：0.008%, Si：0.005%, Mn：0.20%, P： 0.005%,S：0.010%, surplus is iron and inevitable impurity.
- A kind of 5. production method of explosion lead Ultra-low carbon wire rod according to claim 1 or 2, it is characterised in that institute State Ultra-low carbon wire rod chemical composition and its mass percent is as follows: C：0.005%, Si：0.012%, Mn：0.18%, P： 0.015%,S：0.007%, surplus is iron and inevitable impurity.
- A kind of 6. production method of explosion lead Ultra-low carbon wire rod according to claim 1 or 2, it is characterised in that institute State Ultra-low carbon wire rod chemical composition and its mass percent is as follows: C：0.006%, Si：0.007%, Mn：0.25%, P： 0.006%,S：0.006%, surplus is iron and inevitable impurity.
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| CN106906410A (en) * | 2017-02-13 | 2017-06-30 | 邢台钢铁有限责任公司 | A kind of ultra-low carbon wire rod with high electrical conductivity and its production method |
| CN107177791B (en) * | 2017-05-03 | 2018-11-20 | 邢台钢铁有限责任公司 | A kind of ultra-low-carbon steel fiber gren rod and its production method |
| CN107937816A (en) * | 2017-11-30 | 2018-04-20 | 攀钢集团攀枝花钢铁研究院有限公司 | Microalloy containing Ti builds steel wire rod and its production method |
| CN113930676A (en) * | 2021-09-24 | 2022-01-14 | 武汉钢铁有限公司 | Hot-rolled wire rod for low-resistance blasting wire and production method |
| CN115491588A (en) * | 2022-07-26 | 2022-12-20 | 邢台钢铁有限责任公司 | Production method of high-speed wire for low-strain aging electronic lead |
| CN115418579A (en) * | 2022-08-02 | 2022-12-02 | 邢台钢铁有限责任公司 | A kind of production method of super electromagnetic pure iron DT4C high-speed wire rod |
| CN115572909A (en) * | 2022-10-28 | 2023-01-06 | 本钢板材股份有限公司 | Preparation method of hot-rolled wire rod for blasting lead |
| CN118460906B (en) * | 2024-07-09 | 2024-11-08 | 江苏永钢集团有限公司 | Production method of industrial pure iron wire rod for mine detonator blasting wire |
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| CN101462155A (en) * | 2007-12-21 | 2009-06-24 | 首钢总公司 | Method for producing ultra-low carbon wire by small square billet continuous casting |
| CN103469061A (en) * | 2013-09-06 | 2013-12-25 | 鞍钢股份有限公司 | Ultra-low carbon steel wire rod for electric conduction and production method thereof |
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| CN101462155A (en) * | 2007-12-21 | 2009-06-24 | 首钢总公司 | Method for producing ultra-low carbon wire by small square billet continuous casting |
| CN103469061A (en) * | 2013-09-06 | 2013-12-25 | 鞍钢股份有限公司 | Ultra-low carbon steel wire rod for electric conduction and production method thereof |
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