CN105562961A - Preparation method for H08MnA no-twist controlled-cooling hot-rolled wire rod for submerged-arc welding wire - Google Patents
Preparation method for H08MnA no-twist controlled-cooling hot-rolled wire rod for submerged-arc welding wire Download PDFInfo
- Publication number
- CN105562961A CN105562961A CN201510973515.4A CN201510973515A CN105562961A CN 105562961 A CN105562961 A CN 105562961A CN 201510973515 A CN201510973515 A CN 201510973515A CN 105562961 A CN105562961 A CN 105562961A
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- China
- Prior art keywords
- wire rod
- preparation
- h08mna
- submerged
- wire
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3053—Fe as the principal constituent
- B23K35/3073—Fe as the principal constituent with Mn as next major constituent
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
The invention relates to a preparation method for a wire rod for a welding wire, in particular to a preparation method for an H08MnA no-twist controlled-cooling hot-rolled wire rod for a submerged-arc welding wire. According to the technical scheme adopted by the invention, the preparation method for the H08MnA no-twist controlled-cooling hot-rolled wire rod for the submerged-arc welding wire is characterized in that the wire rod consists of the following chemical components in proportion: 0.045-0.095% of C, 0.88-1.02% of Mn, 0.035-0.065% of Si, less than or equal to 0.009% of P, less than or equal to 0.009% of S and the balance of Fe; the wire rod is rolled through a no-twist high-speed wire rolling mill, and then is cooled by a delay type Stelmor process after being rolled. According to the preparation method for the H08MnA no-twist controlled-cooling hot-rolled wire rod for the submerged-arc welding wire provided by the invention, product metallurgical quality, chemical components and drawing properties are guaranteed to meet usage needs.
Description
Technical field
The present invention relates to a kind of preparation method of welding wire wire rod, be specifically related to the preparation method of the cold gren rod of a kind of welding wire for submerged-arc welding H08MnA non-torsion control.
Background technology
The maximum feature of Steel Wire Rod for Welding to ensure drawing property, ensures the requirement of weldquality and mechanical property again, and do not produce bubble, thus have strict demand to the chemical composition of steel.
H08MnA belongs to low-silicon low-carbon steel, by standard GB/T/T3429-2002 regulation, and Si≤0.030%, P≤0.015%, S≤0.015% in its chemical composition.With the wire rod that this standard is made, oxidizable and generate gas effusion when welding, so that in weld seam, produce a lot of pore and loose, and weld the sensitiveness split and increase.Sometimes there is the harmful structure such as martensite and granular bainite in wire rod, affect the mechanical properties.
Summary of the invention
The invention provides the preparation method of the cold gren rod of a kind of welding wire for submerged-arc welding H08MnA non-torsion control, ensure that product metallurgical quality, chemical composition and drawing property all meet user demand.
Technical scheme of the present invention is as follows: the preparation method of the cold gren rod of a kind of welding wire for submerged-arc welding H08MnA non-torsion control, the chemical composition proportioning of this wire rod is C=0.045-0.095%, Mn=0.88-1.02%, Si=0.035-0.065%, P≤0.009%, S≤0.009%, and all the other are Fe; This wire rod turns round high-speed rod-rolling mill rolling, with delaying type stelmor technical cooling after rolling by nothing.
Beneficial effect of the present invention is as follows:
1. S is unfavorable for that the weldability of steel easily causes the hot tearing of weld seam, and oxidizable and generate SO when welding
2gas is overflowed, so that in weld seam, produces a lot of pore and loosen, and therefore S content should be more low better; When the present invention prepares H08MnA blank, control S content is less than 0.009%.
2. P is unfavorable to weldability, increases the sensitiveness of welding and splitting, and therefore reduces P content as much as possible; When the present invention prepares H08MnA blank, control P content is less than 0.009%.
3. when Si content is 0.01-0.04%, during molten steel solidification silicon can to reduce between dendrite concentrated mutually in oxygen; When Si content is 0.02-0.03%, strand bubble is very slight, and Si content is that 0.01% strand easily occurs bubble; When the present invention prepares H08MnA blank, control Si content 0.035-0.065%, abundant deoxidation time mainly in order to make steel, thus reduce the amount of inclusions, improve inclusion morphology and size.
4. wire rod turns round high-speed rod-rolling mill rolling by nothing, and roll rear delaying type stelmor technical cooling, product can be met exempt from the drawing process requirement of annealing, the technique adopting lower laying temperature and slower cooling velocity to combine obtains the microscopic structure of wire rod based on F+P, does not occur martensite and granular bainite.
Detailed description of the invention
A preparation method for the cold gren rod of welding wire for submerged-arc welding H08MnA non-torsion control, the chemical composition proportioning of this wire rod is C=0.045-0.095%, Mn=0.88-1.02%, Si=0.035-0.065%, P≤0.009%, S≤0.009%, and all the other are Fe; This wire rod turns round high-speed rod-rolling mill rolling, with delaying type stelmor technical cooling after rolling by nothing.The chemical composition of concrete example is in table one, and mechanical performance index is in table two, and metallographic structure analysis is in table three.
Table one
Table two
Table three
Claims (1)
1. the preparation method of the cold gren rod of welding wire for submerged-arc welding H08MnA non-torsion control, it is characterized in that, the chemical composition proportioning of this wire rod is C=0.045-0.095%, Mn=0.88-1.02%, Si=0.035-0.065%, P≤0.009%, S≤0.009%, and all the other are Fe; This wire rod turns round high-speed rod-rolling mill rolling, with delaying type stelmor technical cooling after rolling by nothing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510973515.4A CN105562961A (en) | 2015-12-22 | 2015-12-22 | Preparation method for H08MnA no-twist controlled-cooling hot-rolled wire rod for submerged-arc welding wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510973515.4A CN105562961A (en) | 2015-12-22 | 2015-12-22 | Preparation method for H08MnA no-twist controlled-cooling hot-rolled wire rod for submerged-arc welding wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105562961A true CN105562961A (en) | 2016-05-11 |
Family
ID=55873886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510973515.4A Pending CN105562961A (en) | 2015-12-22 | 2015-12-22 | Preparation method for H08MnA no-twist controlled-cooling hot-rolled wire rod for submerged-arc welding wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105562961A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106399842A (en) * | 2016-12-02 | 2017-02-15 | 武汉钢铁股份有限公司 | Steel for submerged arc welding wire for heat-resistant steel and production method of steel |
| CN110317998A (en) * | 2019-06-21 | 2019-10-11 | 河钢股份有限公司承德分公司 | A kind of low silicon welding wire for submerged-arc welding welding steel and its production method |
| WO2021057197A1 (en) * | 2019-09-27 | 2021-04-01 | 南京钢铁股份有限公司 | Rolling process of welding wire steel for weather-resistant bridge |
| CN114875332A (en) * | 2022-05-30 | 2022-08-09 | 湖南华菱湘潭钢铁有限公司 | Production method of annealing-free wire rod for high-strength alloy welding wire of 80 kilograms or more |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1923433A (en) * | 2005-08-31 | 2007-03-07 | 宝山钢铁股份有限公司 | High-performance buried arc welding wire and wire rod, and method for manufacturing same |
-
2015
- 2015-12-22 CN CN201510973515.4A patent/CN105562961A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1923433A (en) * | 2005-08-31 | 2007-03-07 | 宝山钢铁股份有限公司 | High-performance buried arc welding wire and wire rod, and method for manufacturing same |
Non-Patent Citations (3)
| Title |
|---|
| 吴雨晨: "焊接用盘条H08MnA的生产实践", 《南方金属》 * |
| 孙永乐: "H08MnA 、H10Mn2 、H10MnSi焊接用盘条的研制", 《金属制品》 * |
| 陈鹏等: "唐钢H08MnA焊接用盘条的开发与生产工艺", 《河北冶金》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106399842A (en) * | 2016-12-02 | 2017-02-15 | 武汉钢铁股份有限公司 | Steel for submerged arc welding wire for heat-resistant steel and production method of steel |
| CN110317998A (en) * | 2019-06-21 | 2019-10-11 | 河钢股份有限公司承德分公司 | A kind of low silicon welding wire for submerged-arc welding welding steel and its production method |
| CN110317998B (en) * | 2019-06-21 | 2021-05-25 | 河钢股份有限公司承德分公司 | Low-silicon submerged-arc welding wire welding steel and production method thereof |
| WO2021057197A1 (en) * | 2019-09-27 | 2021-04-01 | 南京钢铁股份有限公司 | Rolling process of welding wire steel for weather-resistant bridge |
| CN114875332A (en) * | 2022-05-30 | 2022-08-09 | 湖南华菱湘潭钢铁有限公司 | Production method of annealing-free wire rod for high-strength alloy welding wire of 80 kilograms or more |
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Application publication date: 20160511 |
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| RJ01 | Rejection of invention patent application after publication |