CN104741831A - Welding wire for glassed steel - Google Patents

Welding wire for glassed steel Download PDF

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Publication number
CN104741831A
CN104741831A CN201510141842.3A CN201510141842A CN104741831A CN 104741831 A CN104741831 A CN 104741831A CN 201510141842 A CN201510141842 A CN 201510141842A CN 104741831 A CN104741831 A CN 104741831A
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CN
China
Prior art keywords
welding wire
steel
glassed steel
welding
larger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510141842.3A
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Chinese (zh)
Inventor
王宝森
朱双春
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baoshan Iron and Steel Co Ltd
Original Assignee
Baoshan Iron and Steel Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Baoshan Iron and Steel Co Ltd filed Critical Baoshan Iron and Steel Co Ltd
Priority to CN201510141842.3A priority Critical patent/CN104741831A/en
Publication of CN104741831A publication Critical patent/CN104741831A/en
Pending legal-status Critical Current

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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
    • B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
    • B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
    • B23K35/0261—Rods, electrodes, wires
    • 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
    • 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
    • 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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • 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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Arc Welding In General (AREA)
  • Nonmetallic Welding Materials (AREA)

Abstract

A welding wire for glassed steel comprises, by weight, 0.05-0.15% of C, 0.7-1.5% of Mn, 0.5-1.0% of Si, 0.2-0.3% of Ti, 0-0.25% of S, 0-0.05% of P, 0.006-0.01% of N and the balance Fe and inevitable impurities, wherein Ti/(C+N) = 1.5-3, and Ti=4C+3.42N+1.5S+(0.03-0.05%). Fused metal of the welding wire for the glassed steel has the performance indexes that the yield strength sigma s is larger than or equal to 380MPa, the tensile strength sigma b is larger than or equal to 470MPa, the elongation delta is larger than or equal to 25%, and the impact toughness (AKV, -40 DEG C) is larger than or equal to 43J/cm2. In addition, the welding wire for the glassed steel has good cost performance.

Description

A kind of glassed steel welding wire
Technical field
The present invention relates to field of welding material, particularly a kind of glassed steel welding wire, for the welding of the association areas such as manufacture, installation such as kitchen utensils, cleaners and polishes, oven, water heater liner, building fancy face plate, chemical reaction tank.
Background technology
Cold rolling, hot rolling acid-cleaning glassed steel is the main application product form of enamelware, current Baosteel develops cold rolling ultra-deep and rushes the series such as enamelled pressed steel (BTC1), hot rolling deep-punching glassed steel plate and hot-rolling high-strength enamel sheet, is applied in manufacture and the use of the products such as kitchen utensils, cleaners and polishes, oven, water heater liner, building fancy face plate, chemical reaction tank widely.
Divide according to component system and intensity rank, glassed steel belongs to carbon structural steels class, according to the specific instructions for use of product, carries out microalloying, to meet the Composition and property requirement to steel plate in multiple high temp application of slip process.Wherein having good weldability is one of prerequisite characteristic of glassed steel, to solve the welding process requirement in this steel grade use procedure.
Selecting of welding material is one of glassed steel Joining Technology technology contents, current domestic each enterprise selects the carbon steel welding material of 50kg rank to carry out the welding material of hot rolling, cold rolling and slab glassed steel usually, as ER70-6 (AWS5.18) series, belong to the C-Mn system welding material be most widely used, but for particular/special requirements such as the mouldability in glassed steel manufacture process, adhesion property, fish scaling resistance, use the joint area of this kind of welding material to be undoubtedly one of weak link.
Chinese patent CN200710108163.1 discloses a kind of solid core welding wire, be defined in surface and there is carburized layer, it is the C of 0.005 ~ 0.10 quality % that described carburized layer contains relative to welding wire total quality, the O that described carburized layer contains relative to welding wire total quality lower than 0.010 quality %, the welding wire inside removing described carburized layer has following composition: relative to welding wire total quality, containing C:0.005 ~ 0.150 quality %, Si:0.4 ~ 1.2 quality %, Mn:1.0 ~ 2.2 quality %, surplus is Fe and inevitable impurity.Solid core welding wire of the present invention, at use CO2 gas as protective gas, and when carrying out gas shielded arc welding with high electric current, can make the droplet transfer stablize, reduce splashing generating capacity.
Chinese patent CN00114334.4 discloses a kind of high-strength and high-toughness submerged-arc welding electrode, and its chemical composition contains (% by weight): C:0.05 ~ 0.10, Mn:1.60 ~ 2.10, Si :≤0.10, Ni:0.30 ~ 0.50, Mo:0.20 ~ 0.50, Ti:0.08 ~ 0.15.This welding wire mates with SJ101 solder flux and uses, weld metal tensile strength 600 ~ 700MPa,-40 DEG C of impact flexibility AKV >=60J, heat input accommodation is wide, the rear weld seam of the process that eliminates stress still has higher intensity and toughness, is suitable for the submerged arc weldings such as the pressure vessel of respective strengths low-alloy steel, engineering machinery, hydraulic power pressure steel pipe, boats and ships, ocean platform and bridge.
In above-mentioned patent, Chinese patent CN200710108163.1 emphasizes it is a kind of welding procedure more, utilizes the O content controlled in welding wire surface carburized layer, reaches CO 2molten drop under electric arc atmosphere stablizes transition, does not define the performance of deposited metal and requires, in component system design, C-Mn composition significantly can not meet the performance guarantee requirement of weld metal after multi-pass high-temperature tempering.Chinese patent CN00114334.4 is then a kind of high-strength steel welding material, for tensile strength for the glassed steel of about 450MPa, significantly can not meet the performance requirement of welding point.
Summary of the invention
The object of the present invention is to provide a kind of glassed steel welding wire, its deposited metal has following performance indications: yield strength (σ s)>=380MPa; Tensile strength (σ b)>=470MPa; Percentage elongation (δ)>=25%; Impact flexibility (A kV,-40 DEG C) and>=43J/cm 2; And there is fine cost performance.
For achieving the above object, technical scheme of the present invention is:
A kind of glassed steel welding wire, its chemical component weight percentage is: C 0.05 ~ 0.15%, Mn0.7 ~ 1.5%, Si 0.5 ~ 1.0%, Ti 0.2 ~ 0.3%, S 0 ~ 0.025%, P 0 ~ 0.05%, N0.006 ~ 0.01%, wherein, Ti/ (C+N)=1.5 ~ 3, and, Ti=4C+3.42N+1.5S+ (0.03 ~ 0.05%), all the other are Fe and inevitable impurity.
Weld in soldering wire alloy design in the present invention:
The present invention welds welding wire and adopts C-Mn base alloy system, adopts Ti alloying process simultaneously.
Concrete, C is one of metal strengthening element effective element, a certain amount of C element is absolutely necessary, but too high C content will make enamelware toast distortion to be increased, the generation carbon monoxide and the oxygen of the carbon atom in steel plate easily and in enamel reacts, make enamelware surface produce bubble, in addition, phosphorus content also has impact to deep drawability.Comprehensive Design C content should control at 0.005-0.015%.
Mn: be the guarantee that welding point deposited metal has some strength, simultaneously Mn also has and can be combined with S in the process of molten bath, and form MnS and be mingled with, the storage being also conducive to hydrogen gathers, and is conducive to eliminating Hydrogen Diffusion in Deposited Metal.But too high Mn content will reduce the combination of enamel and matrix, and adhesive force declines.
Si: the mobility contributing on the one hand molten bath stage molten bath improves, also contributes to being combined with oxygen on the other hand and forms Slag inclusion and float, thus the content of oxygen in reduction molten bath.
Ti: the very important alloying element of glassed steel, be also a kind of carbide former, research shows, adding the Ti proportional with the C in steel can fixation of C, makes steel have excellent deep drawing quality, and along with the raising of Ti content, in steel, the apparent diffusion coefficient of hydrogen reduces; Ti and C, N and S element compounds, define enough second phase particles Ti 4c 2s 2, these second phase particles sizes are tiny of Dispersed precipitate, become good storage hydrogen trap, thus improve the fish scaling resistance of steel plate.Ti/ (C+N) compares more than 1.5, the precipitation quantity of the second-phase required for could effectively being formed and distribution, but Ti/ (C+N) is excessive, more than 3%, will affect the adherence of face of weld.
N: be the smaller atom of atomic radius, the solubility of N in Fe is relevant with temperature, and the solubility of N is larger when high temperature, form solid solution, and when temperature is reduced to room temperature, the solubility of N shows and reduces.If when from high temperature, the room of being chilled to is moved back soon, then N will remain in supersaturated solid solution, plays pendulum, and steel is had ageing, therefore needs to have suitable N content in conjunction with overall composition kind and content design.
The welding point that the present invention is directed to glassed steel will carry out 870 ~ 930 DEG C of high tempering sintering of 7-8 time, not only there is certain high temperature resistant property, also to have the quick-fried ability of the anti-squama of certain weld seam simultaneously, in conjunction with test of many times result and analysis, draw best relation formula: Ti=4C+3.42N+1.5S+ (0.03 ~ 0.05%) between the mass fraction between Ti, C, N and S content.
Based on the deposited metal performance under above-mentioned welding material composition prerequisite be: yield strength (σ s)>=380MPa; Tensile strength (σ b)>=470MPa; Percentage elongation (δ)>=25%; Impact flexibility (A kV,-40 DEG C) and>=43J/cm 2.
Beneficial effect of the present invention:
The present invention is designed to C-Mn alloy series, carries out gas shielded arc welding welding and uses, retrain the carburized layer content that welding wire surface occurs in drawing process for ordinary low-alloy steel.
Mentality of designing of the present invention is adopt on the basis of certain C content, ensures to have certain tensile strength, utilizes simultaneously and adds a small amount of Ni, improve the low-temperature flexibility of weld metal.
Because the metallurgy principle adopted is different, therefore carry out the selection of alloying element and the optimization of content (mass fraction) according to each alloys producing and mechanism.Coupling between the element that the present invention adopts and element can reach the using property data of enameled steel products, can meet the welding requirements of existing glassed steel series of products completely.
Detailed description of the invention
Below in conjunction with embodiment, the present invention will be further described.
According to the composition range that the present invention proposes, through the component of weld wire of the operation manufactures such as smelting, rolling, drawing in table 1, the diameter of welding wire is 1.2mm.Adopt the welding of gas metal-arc welding method, the deposited metal performance obtained is in table 2.
Table 1 example component of weld wire (wt%)
Embodiment C Si Mn P S Ti N
1 0.076 0.65 0.89 0.042 0.016 0.22 0.008
2 0.11 0.76 0.94 0.048 0.019 0.32 0.007
3 0.082 0.74 1.24 0.043 0.025 0.28 0.006
4 0.13 0.87 0.97 0.045 0.022 0.33 0.008
5 0.067 0.81 1.38 0.043 0.018 0.23 0.007
Table 2 deposited metal performance
Welding material of the present invention can be applied in the industries such as light industry, household electrical appliances, metallurgy, chemical industry, building, for the welding material of the association areas such as manufacture, installation such as kitchen utensils, cleaners and polishes, oven, water heater liner, building fancy face plate, chemical reaction tank; Also can apply in carbon steel wlding field as the structure steel material of same intensity rank.

Claims (1)

1. a glassed steel welding wire, its chemical component weight percentage is: C 0.05 ~ 0.15%, Mn0.7 ~ 1.5%, Si 0.5 ~ 1.0%, Ti 0.2 ~ 0.3%, S 0 ~ 0.025%, P 0 ~ 0.05%, N0.006 ~ 0.01%, wherein, Ti/ (C+N)=1.5 ~ 3, and, Ti=4C+3.42N+1.5S+ (0.03 ~ 0.05%), all the other are Fe and inevitable impurity.
CN201510141842.3A 2015-03-30 2015-03-30 Welding wire for glassed steel Pending CN104741831A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510141842.3A CN104741831A (en) 2015-03-30 2015-03-30 Welding wire for glassed steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510141842.3A CN104741831A (en) 2015-03-30 2015-03-30 Welding wire for glassed steel

Publications (1)

Publication Number Publication Date
CN104741831A true CN104741831A (en) 2015-07-01

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Country Status (1)

Country Link
CN (1) CN104741831A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61165294A (en) * 1985-01-17 1986-07-25 Nippon Steel Corp Wire for high-speed gas shielded arc welding
JPH0899175A (en) * 1994-09-29 1996-04-16 Daido Steel Co Ltd Gas shield arc welding method
CN1704494A (en) * 2004-05-28 2005-12-07 宝山钢铁股份有限公司 Cold rolling glass-lined steel having excellent scale cracking resistance and extra-deep drawing property and manufacturing method thereof
JP3933937B2 (en) * 2002-01-16 2007-06-20 株式会社神戸製鋼所 Solid wire without copper plating for carbon dioxide arc welding
CN101684532A (en) * 2008-09-27 2010-03-31 鞍钢股份有限公司 Enamel steel for cold rolling water heater and manufacturing method thereof
CN102248324A (en) * 2011-06-27 2011-11-23 武汉钢铁(集团)公司 CO2 gas shield welding wire capable of reducing welding spatter
CN102899565A (en) * 2011-07-25 2013-01-30 宝山钢铁股份有限公司 Steel for cold rolling enamel, and manufacturing method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61165294A (en) * 1985-01-17 1986-07-25 Nippon Steel Corp Wire for high-speed gas shielded arc welding
JPH0899175A (en) * 1994-09-29 1996-04-16 Daido Steel Co Ltd Gas shield arc welding method
JP3933937B2 (en) * 2002-01-16 2007-06-20 株式会社神戸製鋼所 Solid wire without copper plating for carbon dioxide arc welding
CN1704494A (en) * 2004-05-28 2005-12-07 宝山钢铁股份有限公司 Cold rolling glass-lined steel having excellent scale cracking resistance and extra-deep drawing property and manufacturing method thereof
CN101684532A (en) * 2008-09-27 2010-03-31 鞍钢股份有限公司 Enamel steel for cold rolling water heater and manufacturing method thereof
CN102248324A (en) * 2011-06-27 2011-11-23 武汉钢铁(集团)公司 CO2 gas shield welding wire capable of reducing welding spatter
CN102899565A (en) * 2011-07-25 2013-01-30 宝山钢铁股份有限公司 Steel for cold rolling enamel, and manufacturing method thereof

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Application publication date: 20150701

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