CN113755764A - 一种基于晶体优化的抗震螺纹钢筋及其生产工艺 - Google Patents
一种基于晶体优化的抗震螺纹钢筋及其生产工艺 Download PDFInfo
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 34
- 239000010959 steel Substances 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000013078 crystal Substances 0.000 title claims abstract description 13
- 238000005457 optimization Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 5
- 239000010955 niobium Substances 0.000 claims abstract description 5
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000010936 titanium Substances 0.000 claims abstract description 5
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims description 28
- 238000005096 rolling process Methods 0.000 claims description 23
- 239000002994 raw material Substances 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 16
- 239000012535 impurity Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 5
- 239000000498 cooling water Substances 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 239000000446 fuel Substances 0.000 claims description 4
- 238000004513 sizing Methods 0.000 claims description 4
- 238000005496 tempering Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 2
- 230000001172 regenerating effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
- B21B1/463—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
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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
- 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
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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
- 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
- C21D8/08—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires for concrete reinforcement
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- 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
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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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
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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
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- 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
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
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Abstract
本发明公开了一种基于晶体优化的抗震螺纹钢筋及其生产工艺,钢筋材料配比为:C:0.26~0.36%、Si:1.5~1.7%、Mn:0.7~1.0%、V:0.08~0.15%、P≤0.045%、S≤0.045%、铌+钛小于0.10%、余量为Fe;所述的百分比为质量百分比,本发明采用QTB穿水处理技术,使得钢筋的屈服强度和可延伸性更强,大大提高了钢筋的抗拉强度,同时起到抗震的效果,本发明优化了钢筋原料组分,使得其力学性能更加稳定,生产工序简单,操作方便,适合大范围推广、使用。
Description
技术领域
本发明涉及一种基于晶体优化的抗震螺纹钢筋及其生产工艺。
背景技术
钢筋混凝土用热轧带助钢筋是国内外各类建筑工程中广泛使用的一种关键材料,也是我国冶金行业各钢厂大量生产的一种关键产品。随着建筑行业的快速发展,对该产品提出了更高的质量标准,要求其性能既具有高强度又具有良好的可塑性,可焊接性,耐疲劳及粘结性等指标,才能够满足高层建筑、大跨度、抗震、耐低温等高档建筑工程的需要,同时还可达到节约钢材,降低成本的目的。
发明内容
本发明的目的是为了解决以上现有技术的不足,提供由以下重量份数的组分组成:C:0.26~0.36%、Si:1.5~1.7%、Mn:0.7~1.0%、V:0.08~0.15%、P≤ 0.045%、S≤0.045%、铌+钛小于0.10%、余量为Fe;所述的百分比为质量百分比。
一种基于晶体优化的抗震螺纹钢筋的生产工艺,包括以下步骤:
(1)原料除杂工序:对所需的原料进行过滤、除杂;
(2)原料准备:所述原料进行连续铸钢,制成方胚;
(3)加热工序:将方胚放入加热炉进行加热;
(4)粗轧:采用多个粗轧机进行多次粗轧;
(5)精轧:采用对个精轧机进行多次精轧;
(6)QTB穿水处理:对精轧后的胚料进行QTB穿水处理;
(7)冷床处理:进行QTB穿水处理后上冷床自然冷却、定尺、检验、入库。
作为进一步改进,步骤6中的QTB穿水处理采用冷却器5~15个;冷却水总流量为550~970m3/h;冷却时间为0.5~4.55S;自回火温度为:550~580℃。
作为进一步改进,步骤4中的精轧机为6个。
作为进一步改进,步骤5中的粗轧机为4个
作为进一步改进,步骤3中的加热炉为蓄热式步进梁加热炉,所述的加热炉的加热燃料为高炉煤气。
有益效果:
本发明采用QTB穿水处理技术,使得钢筋的屈服强度和可延伸性更强,大大提高了钢筋的抗拉强度,同时起到抗震的效果,本发明优化了钢筋原料组分,使得其力学性能更加稳定,生产工序简单,操作方便,适合大范围推广、使用。
具体实施方式
为了加深对本发明的理解,下面将结合实施例对本发明作进一步详述,该实施例仅用于解释本发明,并不构成对本发明保护范围的限定。
实施例1:
晶体优化的抗震螺纹钢筋,由以下重量份数的组分组成:C:0.26~0.36%、 Si:1.5~1.7%、Mn:0.7~1.0%、V:0.08~0.15%、P≤0.045%、S≤0.045%、铌+ 钛小于0.10%、余量为Fe;所述的百分比为质量百分比。
上述适用于晶体优化的抗震螺纹钢筋及其生产工艺,包括以下步骤:
(1)原料除杂工序:对所需的原料进行过滤、除杂;
(2)原料准备:所述原料进行连续铸钢,制成方胚,钢筋原料组分,使得其力学性能更加稳定,生产工序简单,操作方便,适合大范围推广、使用;
(3)加热工序:将方胚放入加热炉进行加热,加热炉为蓄热式步进梁加热炉,所述的加热炉的加热燃料为高炉煤气;
(4)粗轧:采用多个粗轧机进行多次粗轧,粗轧机为4个;
(5)精轧:采用对个精轧机进行多次精轧,精轧机为6个;
(6)QTB穿水处理:对精轧后的胚料进行QTB穿水处理;
(7)冷床处理:进行QTB穿水处理后上冷床自然冷却、定尺、检验、入库。 QTB穿水处理采用冷却器5~15个;冷却水总流量为570m3/h;冷却时间为2.5S;自回火温度为:555℃,使得钢筋的屈服强度和可延伸性更强,大大提高了钢筋的抗拉强度,同时起到抗震的效果。
实施例2:
晶体优化的抗震螺纹钢筋,由以下重量份数的组分组成:C:0.26~0.36%、Si:1.5~1.7%、Mn:0.7~1.0%、V:0.08~0.15%、P≤0.045%、S≤0.045%、铌+钛小于0.10%、余量为Fe;所述的百分比为质量百分比。
上述适用于晶体优化的抗震螺纹钢筋及其生产工艺,包括以下步骤:
(1)原料除杂工序:对所需的原料进行过滤、除杂;
(2)原料准备:所述原料进行连续铸钢,制成方胚,钢筋原料组分,使得其力学性能更加稳定,生产工序简单,操作方便,适合大范围推广、使用;
(3)加热工序:将方胚放入加热炉进行加热,加热炉为蓄热式步进梁加热炉,所述的加热炉的加热燃料为高炉煤气;
(4)粗轧:采用多个粗轧机进行多次粗轧,粗轧机为4个;
(5)精轧:采用对个精轧机进行多次精轧,精轧机为6个;
(6)QTB穿水处理:对精轧后的胚料进行QTB穿水处理;
(7)冷床处理:进行QTB穿水处理后上冷床自然冷却、定尺、检验、入库。 QTB穿水处理采用冷却器5~15个;冷却水总流量为580m3/h;冷却时间为3.5S;自回火温度为:580℃,使得钢筋的屈服强度和可延伸性更强,大大提高了钢筋的抗拉强度,同时起到抗震的效果。
以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (6)
1.一种基于晶体优化的抗震螺纹钢筋,其特征在于,钢筋材料配比为:C:0.26~0.36%、Si:1.5~1.7%、Mn:0.7~1.0%、V:0.08~0.15%、P≤0.045%、S≤0.045%、铌+钛小于0.10%、余量为Fe;所述的百分比为质量百分比。
2.如权利要求1所述的一种基于晶体优化的抗震螺纹钢筋的生产工艺,其特征在于,包括以下步骤:
(1)原料除杂工序:对所需的原料进行过滤、除杂;
(2)原料准备:所述原料进行连续铸钢,制成方胚;
(3)加热工序:将方胚放入加热炉进行加热;
(4)粗轧:采用多个粗轧机进行多次粗轧;
(5)精轧:采用对个精轧机进行多次精轧;
(6)QTB穿水处理:对精轧后的胚料进行QTB穿水处理;
(7)冷床处理:进行QTB穿水处理后上冷床自然冷却、定尺、检验、入库。
3.根据权利要求2所述的一种基于晶体优化的抗震螺纹钢筋的生产工艺,其特征在于,步骤6中的QTB穿水处理采用冷却器5~15个;冷却水总流量为550~970m3/h;冷却时间为0.5~4.55S;自回火温度为:550~580℃。
4.根据权利要求2所述的一种基于晶体优化的抗震螺纹钢筋的生产工艺,其特征在于,步骤4中的精轧机为6个。
5.根据权利要求2所述的一种基于晶体优化的抗震螺纹钢筋的生产工艺,其特征在于,步骤5中的粗轧机为4个。
6.根据权利要求2所述的一种基于晶体优化的抗震螺纹钢筋的生产工艺,其特征在于,步骤3中的加热炉为蓄热式步进梁加热炉,所述的加热炉的加热燃料为高炉煤气。
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04329827A (ja) * | 1991-05-01 | 1992-11-18 | Kobe Steel Ltd | 鉄筋コンクリート用棒鋼の製造方法 |
CN1769510A (zh) * | 2004-11-05 | 2006-05-10 | 马鞍山钢铁股份有限公司 | 高强度抗震热轧钢筋用钢 |
CN101275197A (zh) * | 2007-07-19 | 2008-10-01 | 天津钢铁有限公司 | 一种高强度螺纹钢筋及其制备工艺 |
CN101327491A (zh) * | 2007-06-18 | 2008-12-24 | 首钢总公司 | 高强度精轧螺纹钢筋的生产方法 |
CN111172459A (zh) * | 2020-01-19 | 2020-05-19 | 江苏省沙钢钢铁研究院有限公司 | 一种hrb600e钒钛微合金化高强抗震热轧钢筋 |
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04329827A (ja) * | 1991-05-01 | 1992-11-18 | Kobe Steel Ltd | 鉄筋コンクリート用棒鋼の製造方法 |
CN1769510A (zh) * | 2004-11-05 | 2006-05-10 | 马鞍山钢铁股份有限公司 | 高强度抗震热轧钢筋用钢 |
CN101327491A (zh) * | 2007-06-18 | 2008-12-24 | 首钢总公司 | 高强度精轧螺纹钢筋的生产方法 |
CN101275197A (zh) * | 2007-07-19 | 2008-10-01 | 天津钢铁有限公司 | 一种高强度螺纹钢筋及其制备工艺 |
CN111172459A (zh) * | 2020-01-19 | 2020-05-19 | 江苏省沙钢钢铁研究院有限公司 | 一种hrb600e钒钛微合金化高强抗震热轧钢筋 |
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Application publication date: 20211207 |