CN104476008A - Welding wire for high-heat-input submerged-arc welding - Google Patents
Welding wire for high-heat-input submerged-arc welding Download PDFInfo
- Publication number
- CN104476008A CN104476008A CN201410728048.4A CN201410728048A CN104476008A CN 104476008 A CN104476008 A CN 104476008A CN 201410728048 A CN201410728048 A CN 201410728048A CN 104476008 A CN104476008 A CN 104476008A
- Authority
- CN
- China
- Prior art keywords
- welding wire
- arc welding
- high heat
- submerged
- input
- 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
Links
- 238000003466 welding Methods 0.000 title claims abstract description 87
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 230000004907 flux Effects 0.000 claims abstract description 8
- 239000000126 substance Substances 0.000 claims abstract description 7
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 6
- 239000000956 alloy Substances 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 239000011572 manganese Substances 0.000 claims description 16
- 229910052748 manganese Inorganic materials 0.000 claims description 12
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- 229910052710 silicon Inorganic materials 0.000 claims description 11
- 239000010703 silicon Substances 0.000 claims description 8
- 229910052749 magnesium Inorganic materials 0.000 claims description 7
- 229910000859 α-Fe Inorganic materials 0.000 claims description 7
- 229910052684 Cerium Inorganic materials 0.000 claims description 6
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910001563 bainite Inorganic materials 0.000 claims description 3
- 239000002667 nucleating agent Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- CADICXFYUNYKGD-UHFFFAOYSA-N sulfanylidenemanganese Chemical compound [Mn]=S CADICXFYUNYKGD-UHFFFAOYSA-N 0.000 claims description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims description 2
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 230000008602 contraction Effects 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 abstract description 15
- 239000002184 metal Substances 0.000 abstract description 15
- 238000010521 absorption reaction Methods 0.000 abstract description 6
- 238000005245 sintering Methods 0.000 abstract description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 9
- 239000011777 magnesium Substances 0.000 description 8
- 239000010936 titanium Substances 0.000 description 8
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 5
- 229910001566 austenite Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910052750 molybdenum Inorganic materials 0.000 description 5
- 239000011733 molybdenum Substances 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 150000004760 silicates Chemical class 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 241001417490 Sillaginidae Species 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- B23K35/22—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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
本发明公开了一种大热输入埋弧焊焊丝，其化学成分按重量百分比为：C 0.01～0.08，Si 0.1～0.8，Mn 1.0～2.0，Ni 0.1～1.0，Mo 0.1～1.0，Al 0.01～0.05，Ti 0.01～0.05，Mg≤0.005，Ce≤0.001，P≤0.015，S≤0.01，余量为Fe和杂质。本焊丝与碱性烧结焊剂GM55匹配，热输入在60kJ/cm-160kJ/cm范围内，焊缝金属低温韧性优良，焊缝金属-20℃冲击吸收功Akv 94-159J，-40℃冲击吸收功Akv 48-118J。本焊丝可用于A/D/E36级别和A/D/E40级别船板钢的大热输入焊接，以及强度级别在400MPa以上的低合金高强钢的大热输入焊接。The invention discloses a large heat input submerged arc welding wire, the chemical composition of which is: C 0.01～0.08, Si 0.1～0.8, Mn 1.0～2.0, Ni 0.1～1.0, Mo 0.1～1.0, Al 0.01～ 0.05, Ti 0.01～0.05, Mg≤0.005, Ce≤0.001, P≤0.015, S≤0.01, the balance is Fe and impurities. The welding wire is matched with the basic sintering flux GM55, the heat input is in the range of 60kJ/cm-160kJ/cm, the weld metal has excellent low-temperature toughness, the weld metal has an impact absorption energy of -20°C A kv 94-159J, and -40°C impact absorption Gong A kv 48-118J. This welding wire can be used for high heat input welding of A/D/E36 grade and A/D/E40 grade ship plate steel, and high heat input welding of low alloy high strength steel with strength grade above 400MPa.
Description
技术领域technical field
本发明属于材料加工领域，尤其涉及一种大热输入埋弧焊焊丝。The invention belongs to the field of material processing, in particular to a large heat input submerged arc welding wire.
背景技术Background technique
随着造船行业向大型船舶发展，对钢的强韧性提出了新的要求。同时，为减少制造成本，提高厚板焊接效率成为发展趋势。因此，大热输入焊接用高强钢以及相关配套焊接材料的开发和研究具有重要意义。As the shipbuilding industry develops towards large ships, new requirements are placed on the strength and toughness of steel. At the same time, in order to reduce manufacturing costs, improving the welding efficiency of thick plates has become a development trend. Therefore, the development and research of high-strength steel for high heat input welding and related supporting welding materials is of great significance.
中国发明专利申请200810020096.2公开了一种‘低温装备用奥氏体不锈钢埋弧焊焊丝’，此焊丝满足低温装备及低温条件下的高强度、高韧性及耐腐蚀系列钢种的焊接技术要求，但是不能用于大热输入焊接。中国发明专利申请200410073353.0公开了一种‘高等级管线钢用埋弧焊焊丝材料’，该焊丝与SJ101G焊剂匹配可用于X80级管线钢，热输入范围适用30～48kJ左右，与大热输入焊接还有一定差距。中国发明专利申请200510018993.6公开了一种‘高强度管线钢用埋弧焊焊丝’，适用于X80高强度管线钢及其它抗拉强度在620-740MPa强度级别低的合金钢的埋弧焊接。中国发明专利申请201010605985.2公开了‘一种超高强度管线钢用埋弧焊焊丝及其制备方法’，该丝与SJ105焊剂匹配焊接，适用于X120超高强度管线钢。中国发明专利申请201310178969.3公开了‘一种高温强度优异的奥氏体不锈钢埋弧焊焊丝’，该丝主要可以用于压水堆核岛内关键部件的焊接。该申请主要关注接头的高温强度，并未提及焊丝适用的热输入范围。中国发明专利申请201310110436.1公开了‘一种含铜的高强度高韧性埋弧焊焊丝及其焊接工艺’，适用热输入为15～18kJ/cm，适用于化工容器、石油管道、电力压力管道、船舶、海洋平台以及大型航空母舰等大型结构件。Chinese invention patent application 200810020096.2 discloses a "austenitic stainless steel submerged arc welding wire for low-temperature equipment", which meets the welding technical requirements of low-temperature equipment and high-strength, high-toughness and corrosion-resistant steel series under low-temperature conditions, but Cannot be used for high heat input welding. Chinese invention patent application 200410073353.0 discloses a "submerged arc welding wire material for high-grade pipeline steel". There is a certain gap. Chinese invention patent application 200510018993.6 discloses a 'submerged arc welding wire for high-strength pipeline steel', which is suitable for submerged arc welding of X80 high-strength pipeline steel and other low-strength alloy steels with a tensile strength of 620-740MPa. Chinese invention patent application 201010605985.2 discloses 'a submerged arc welding wire for ultra-high-strength pipeline steel and its preparation method'. The wire is matched with SJ105 flux for welding and is suitable for X120 ultra-high-strength pipeline steel. Chinese invention patent application 201310178969.3 discloses 'an austenitic stainless steel submerged arc welding wire with excellent high-temperature strength', which can be mainly used for welding key components in the nuclear island of a pressurized water reactor. The application mainly focuses on the high-temperature strength of the joint, and does not mention the applicable heat input range of the welding wire. Chinese invention patent application 201310110436.1 discloses 'a copper-containing high-strength and high-toughness submerged arc welding wire and its welding process', the applicable heat input is 15-18kJ/cm, suitable for chemical containers, oil pipelines, power pressure pipelines, ships , offshore platforms and large aircraft carriers and other large structural parts.
目前，国内对热输入大于50kJ/cm的焊接称为大热输入焊接。以上专利技术所发明的埋弧焊焊丝，其适用热输入均不超过50kJ/cm，上述焊丝均不适用于大热输入焊接。At present, domestic welding with heat input greater than 50kJ/cm is called large heat input welding. The submerged arc welding wire invented by the above-mentioned patented technology has an applicable heat input of no more than 50kJ/cm, and the above-mentioned welding wire is not suitable for welding with a large heat input.
发明内容Contents of the invention
本发明的目的在于弥补现有技术不足，提供一种大热输入埋弧焊焊丝。本焊丝适用热输入范围是60～160kJ/cm，与碱性烧结焊剂GM55匹配，主要用于A/D/E36级别和A/D/E40级别船板钢的焊接。The purpose of the present invention is to make up for the deficiencies of the prior art and provide a large heat input submerged arc welding wire. The applicable heat input range of this welding wire is 60~160kJ/cm, matching with basic sintering flux GM55, mainly used for welding A/D/E36 grade and A/D/E40 grade ship plate steel.
为实现上述目的，本发明的技术方案如下：To achieve the above object, the technical scheme of the present invention is as follows:
一种大热输入埋弧焊焊丝，所述埋弧焊焊丝的化学成分按质量百分比为：C 0.01～0.08，Si 0.1～0.8，Mn 1.0～2.0，Ni 0.1～1.0，Mo 0.1～1.0，Al 0.01～0.05，Ti 0.01～0.05，Mg≤0.005，Ce≤0.001，P≤0.015，S≤0.01，余量为Fe和杂质。A large heat input submerged arc welding wire, the chemical composition of the submerged arc welding wire is: C 0.01-0.08, Si 0.1-0.8, Mn 1.0-2.0, Ni 0.1-1.0, Mo 0.1-1.0, Al 0.01～0.05, Ti 0.01～0.05, Mg≤0.005, Ce≤0.001, P≤0.015, S≤0.01, the balance is Fe and impurities.
所述埋弧焊焊丝适用的热输入范围是60～160kJ/cm。The applicable heat input range of the submerged arc welding wire is 60-160 kJ/cm.
所述焊丝得到的焊缝，在使用状态下的微观组织为贝氏体组织和针状铁素体基体上具有弥散的TiN粒子，Si、Mn、Ti、Al、Ce和Mg等的复合氧化物夹杂，以及硫化物夹杂。The microstructure of the welding seam obtained by the welding wire in use is bainite structure and acicular ferrite matrix with dispersed TiN particles, composite oxides of Si, Mn, Ti, Al, Ce and Mg, etc. inclusions, and sulfide inclusions.
所述焊丝得到的焊缝，在使用状态下的微观组织进一步具有硅、氧结合形成的硅酸盐及其复合物，作为针状铁素体的形核剂。The microstructure of the welding seam obtained by the welding wire in the state of use further has silicates and their composites formed by combining silicon and oxygen as nucleating agents for acicular ferrite.
该焊丝得到的焊缝，在使用状态下的微观组织进一步具有锰硫化物。The weld seam obtained by this welding wire further has manganese sulfide in the microstructure in the state of use.
所述焊丝适用于抗拉强度级别在400MPa以上的低合金高强钢大热输入埋弧焊焊接。The welding wire is suitable for high-heat-input submerged arc welding of low-alloy high-strength steel with a tensile strength level above 400 MPa.
所述焊丝适用于A/D/E36级别和A/D/E40级别船板钢的大热输入埋弧焊焊接。The welding wire is suitable for high heat input submerged arc welding of A/D/E36 grade and A/D/E40 grade ship plate steel.
与碱性烧结焊剂GM55匹配。Matches with basic sintered flux GM55.
所述焊丝得到的焊缝，具有以下力学性能：抗拉强度570-650Rm/MPa，屈服强度450-553Rp0.2/MPa，断面收缩率Z/％61-75，延伸率A/％22-28，-20℃冲击吸收功94-159J Akv-20℃/J，-40℃冲击吸收功48-118J Akv-40℃/J。The welding seam obtained by the welding wire has the following mechanical properties: tensile strength 570-650Rm/MPa, yield strength 450-553Rp0.2/MPa, reduction of area Z/% 61-75, elongation A/% 22-28 , -20°C impact absorption energy 94-159J Akv-20°C/J, -40°C impact absorption energy 48-118J Akv-40°C/J.
本发明的有益效果在于：The beneficial effects of the present invention are:
1)本发明焊丝适用热输入范围是60～160kJ/cm，焊缝金属具有良好的低温韧性，本发明焊丝不仅适用于A/D/E36级别和A/D/E40级别船板钢的大热输入埋弧焊焊接，同样适用于强度级别在400MPa以上的低合金高强钢大热输入埋弧焊焊接。1) The applicable heat input range of the welding wire of the present invention is 60-160kJ/cm, and the weld metal has good low-temperature toughness. Input submerged arc welding is also suitable for high heat input submerged arc welding of low-alloy high-strength steel with a strength level above 400MPa.
2)本发明焊丝具有优良的焊接工艺性能。2) The welding wire of the present invention has excellent welding performance.
具体实施方式Detailed ways
下面结合实施例，对本发明的具体实施方式作进一步详细描述。Below in conjunction with the examples, the specific implementation of the present invention will be further described in detail.
本发明的大热输入埋弧焊焊丝，其化学成分按质量百分比为：C0.01～0.08，Si 0.1～0.8，Mn 1.0～2.0，Ni 0.1～1.0，Mo 0.1～1.0，Al 0.01～0.05，Ti 0.01～0.05，Mg≤0.005，Ce≤0.001，P≤0.015，S≤0.01，余量为Fe和杂质。The chemical composition of the high heat input submerged arc welding wire of the present invention is: C0.01～0.08, Si 0.1～0.8, Mn 1.0～2.0, Ni 0.1～1.0, Mo 0.1～1.0, Al 0.01～0.05, Ti 0.01～0.05, Mg≤0.005, Ce≤0.001, P≤0.015, S≤0.01, the balance is Fe and impurities.
本发明的技术方案是运用微合金化原理和氧化物冶金原理。一方面通过加入Ti形成TiN来钉扎奥氏体晶界阻止奥氏体长大，另一方面通过加入Si、Mn、Ti、Al、Ce、Mg等合金元素促进产生高熔点Si、Mn、Ti、Al、Ce和Mg等的复合氧化物夹杂，促进针状铁素体的产生，进而保证焊缝在大热输入下的韧性。The technical solution of the invention is to use the principle of microalloying and oxide metallurgy. On the one hand, by adding Ti to form TiN to pin the austenite grain boundary to prevent austenite from growing, on the other hand, by adding Si, Mn, Ti, Al, Ce, Mg and other alloying elements to promote the production of high melting point Si, Mn, Ti , Al, Ce and Mg and other composite oxide inclusions promote the generation of acicular ferrite, thereby ensuring the toughness of the weld under large heat input.
C：为了保证焊丝的强度，必须加入一定量的碳，但碳含量较高将会对韧性和耐腐蚀性能产生不利影响，故本焊丝碳含量范围选择0.01～0.08％。C: In order to ensure the strength of the welding wire, a certain amount of carbon must be added, but a high carbon content will have an adverse effect on toughness and corrosion resistance, so the carbon content range of this welding wire is selected from 0.01 to 0.08%.
Si：硅对焊缝组织和性能的影响，主要是通过与焊缝金属中氧的作用而体现出来的。硅、氧能结合形成硅酸盐及其复合物，成为针状铁素体(AF)的形核剂。当锰、硅同时存在时，硅是脱氧剂，随着锰、硅含量的增加，可使连续冷却的相变温度逐渐降低、细化组织，从而影响焊缝金属组织性能。本发明硅含量选择0.1～0.8％。Si: The influence of silicon on the structure and performance of the weld is mainly reflected by the interaction with oxygen in the weld metal. Silicon and oxygen can combine to form silicates and their complexes, which become nucleating agents for acicular ferrite (AF). When manganese and silicon exist at the same time, silicon is a deoxidizer. With the increase of manganese and silicon content, the phase transition temperature of continuous cooling can be gradually reduced and the microstructure can be refined, thus affecting the microstructure and properties of the weld metal. The silicon content of the present invention is selected from 0.1 to 0.8%.
Mn：锰可以使低熔点的铁硫化物转变为高熔点的锰硫化物，减少焊缝中热裂纹的产生。焊缝中锰的含量对焊缝金属的力学性能有很大的影响：随着锰含量的增加，焊缝金属的屈服强度和拉伸强度呈线性增加，当锰含量达1.5％时焊缝可获得最好的缺口冲击韧性。因此，锰含量选择1.0～2.0％。Mn: Manganese can transform iron sulfide with low melting point into manganese sulfide with high melting point, reducing the occurrence of hot cracks in welds. The content of manganese in the weld has a great influence on the mechanical properties of the weld metal: with the increase of manganese content, the yield strength and tensile strength of the weld metal increase linearly, when the manganese content reaches 1.5%, the weld can be Get the best notched impact toughness. Therefore, the manganese content is selected to be 1.0-2.0%.
Ni：镍是奥氏体形成元素，可改善焊缝金属的低温韧性。为了保证焊缝金属具有一定的塑韧性，应加入适量镍，本发明镍含量选择0.1～1.0％。Ni: Nickel is an austenite forming element that improves the low temperature toughness of the weld metal. In order to ensure that the weld metal has a certain plasticity and toughness, an appropriate amount of nickel should be added, and the content of nickel in the present invention is selected to be 0.1-1.0%.
Mo：钼是固溶强化的主要元素，具有较强的强化效果。此外，钼是晶粒细化元素，可提高淬透性和热强性。钼能有效降低Bs温度，从而在较宽的冷却速度范围内获得完全的贝氏体组织，即使在大热输入焊接时，热影响区的组织保持不变且获得良好的韧性。综合考虑钼对焊缝金属性能的影响，其含量选择0.1～1.0％。Mo: Molybdenum is the main element of solid solution strengthening and has a strong strengthening effect. In addition, molybdenum is a grain refining element that improves hardenability and hot strength. Molybdenum can effectively reduce the Bs temperature, so that a complete bainite structure can be obtained in a wide range of cooling rates. Even when welding with large heat input, the structure of the heat-affected zone remains unchanged and good toughness is obtained. Considering the influence of molybdenum on the properties of weld metal comprehensively, the content of molybdenum is selected as 0.1-1.0%.
Al：铝是强氧化物形成元素，具有很强的脱氧和细化晶粒的作用，因此在焊接过程中铝能够减少其他合金元素的烧损。铝对焊缝组织的影响十分复杂。铝容易使AF在原奥氏体晶内合适的夹杂物上形核长大。焊缝中非金属夹杂物MnO与SiO2随着铝含量的增加而逐渐被Al2O3所取代。有关研究表明焊缝中加入适量的铝含量会使AF含量增加，从而改善焊缝韧性。本发明铝含量选择0.01～0.05％。Al: Aluminum is a strong oxide forming element, which has a strong deoxidation and grain refinement effect, so aluminum can reduce the burning loss of other alloying elements during the welding process. The influence of aluminum on the weld structure is very complex. Aluminum easily causes AF to nucleate and grow on suitable inclusions in prior austenite grains. The non-metallic inclusions MnO and SiO 2 in the weld are gradually replaced by Al 2 O 3 with the increase of aluminum content. Relevant studies have shown that adding an appropriate amount of aluminum to the weld will increase the AF content, thereby improving the weld toughness. The aluminum content of the present invention is selected from 0.01 to 0.05%.
Ti：在钢焊接接头中主要以TiN及钛的氧化物的形式存在。弥散分布的细小TiN质点有效地阻止了奥氏体晶粒长大。大量细小均匀分布的Si、Mn、Ti、Al、Ca和Mg等的复合氧化物夹杂有利于针状铁素体的形核和长大，从而改善大热输入下焊缝金属的韧性。本发明钛的含量选择0.01～0.05％。Ti: It mainly exists in the form of TiN and titanium oxides in steel welded joints. The dispersed fine TiN particles effectively prevent the growth of austenite grains. A large number of fine and uniformly distributed composite oxide inclusions of Si, Mn, Ti, Al, Ca and Mg are beneficial to the nucleation and growth of acicular ferrite, thereby improving the toughness of the weld metal under large heat input. The content of titanium in the present invention is selected from 0.01 to 0.05%.
Mg、Ce：镁、铈的加入主要是考虑到通过氧化物冶金原理，焊接时焊缝中产生的镁、铈的氧化物夹杂促进AF的产生来提高焊缝性能。本发明镁含量为不大于0.005％，铈含量为不大于0.001％。Mg, Ce: The addition of magnesium and cerium is mainly based on the principle of oxide metallurgy, and the oxide inclusions of magnesium and cerium produced in the weld during welding promote the generation of AF to improve the weld performance. The content of magnesium in the present invention is not more than 0.005%, and the content of cerium is not more than 0.001%.
P、S：磷、硫为杂质元素。磷含量过高会恶化材料低温韧性，硫会增加材料的热裂性。同时考虑到冶炼成本，本发明磷、硫含量选择分别为不大于0.015％和不大于0.01％。P, S: Phosphorus and sulfur are impurity elements. Excessive phosphorus content will deteriorate the low-temperature toughness of the material, and sulfur will increase the thermal cracking property of the material. At the same time, considering the smelting cost, the contents of phosphorus and sulfur in the present invention are selected to be not more than 0.015% and not more than 0.01% respectively.
根据表1的焊丝的化学成分进行控制冶炼，对冶炼好的钢锭轧制成盘条，再进行热处理、拉拔，最终获得Ф4.5mm的焊丝(实施例1、实施例2、实施例3、实施例4、实施例5)。Carry out controlled smelting according to the chemical composition of the welding wire of table 1, the steel ingot that smelts is rolled into wire rod, carry out heat treatment, drawing again, finally obtain the welding wire of Ф4.5mm (embodiment 1, embodiment 2, embodiment 3, Embodiment 4, embodiment 5).
表1 本发明实施例1～5埋弧焊焊丝的化学成分(质量百分数，％)Table 1 The chemical composition (mass percentage, %) of the submerged arc welding wire of the present invention examples 1 to 5
采用上述5种焊丝(实施例1、实施例2、实施例3、实施例4、实施例5)进行了埋弧焊焊接，试板采用平焊对接的形式。钢板为E40钢板，厚度20mm，坡口60°，钝边5mm。热输入分别为60kJ/cm、100kJ/cm、120kJ/cm和160kJ/cm，焊剂为碱性烧结焊剂GM55，碱度为2.9，层温150℃。The above five kinds of welding wires (Example 1, Example 2, Example 3, Example 4, Example 5) were used for submerged arc welding, and the test plates were in the form of flat welding butt joint. The steel plate is E40 steel plate, the thickness is 20mm, the bevel is 60°, and the blunt edge is 5mm. The heat input is 60kJ/cm, 100kJ/cm, 120kJ/cm and 160kJ/cm respectively, the flux is basic sintered flux GM55, the basicity is 2.9, and the layer temperature is 150°C.
焊缝金属力学性能结果见表2。The mechanical properties of the weld metal are shown in Table 2.
表2 采用本发明实施例1～3埋弧焊焊丝的焊缝金属力学性能Table 2 The mechanical properties of the weld metal using the submerged arc welding wire of Examples 1 to 3 of the present invention
从表2可以看出，本焊丝与碱性烧结焊剂GM55匹配，热输入在60kJ/cm-160kJ/cm范围内，焊缝金属低温韧性优良，焊缝金属-20℃冲击吸收功Akv94～159J，-40℃冲击吸收功Akv48～118J。It can be seen from Table 2 that this welding wire matches the basic sintered flux GM55, the heat input is in the range of 60kJ/cm-160kJ/cm, the weld metal has excellent low-temperature toughness, and the weld metal has an impact absorption energy A kv 94～20℃ 159J, -40℃ impact absorption energy A kv 48～118J.
本发明的埋弧焊焊丝，适用于抗拉强度级别在400MPa以上的低合金高强钢大热输入埋弧焊焊接，特别适用于A/D/E36级别和A/D/E40级别船板钢的大热输入埋弧焊焊接。The submerged arc welding wire of the present invention is suitable for high heat input submerged arc welding of low-alloy high-strength steel with a tensile strength level above 400 MPa, especially for A/D/E36 grade and A/D/E40 grade ship plate steel High heat input submerged arc welding.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410728048.4A CN104476008A (en) | 2014-12-03 | 2014-12-03 | Welding wire for high-heat-input submerged-arc welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410728048.4A CN104476008A (en) | 2014-12-03 | 2014-12-03 | Welding wire for high-heat-input submerged-arc welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104476008A true CN104476008A (en) | 2015-04-01 |
Family
ID=52750682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410728048.4A Pending CN104476008A (en) | 2014-12-03 | 2014-12-03 | Welding wire for high-heat-input submerged-arc welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104476008A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105234583A (en) * | 2015-10-26 | 2016-01-13 | 钢铁研究总院 | X80 submerged-arc welding wire applicable to welding of coal-to-gas pipes |
| CN105458549A (en) * | 2015-12-18 | 2016-04-06 | 钢铁研究总院 | Submerged arc welding wire for reactor supporting structure steel |
| CN107999958A (en) * | 2017-12-08 | 2018-05-08 | 首钢集团有限公司 | A kind of welding method for ensureing armour plate welding point ballistic performance |
| CN112404671A (en) * | 2020-11-06 | 2021-02-26 | 李素坤 | Solid welding wire for FCB (flux cored arc welding) method high heat input submerged arc welding and preparation method and application thereof |
| CN113798729A (en) * | 2021-09-23 | 2021-12-17 | 包头钢铁（集团）有限责任公司 | Rare earth solid welding wire with excellent low-temperature impact toughness |
| CN114378480A (en) * | 2022-02-08 | 2022-04-22 | 张家港荣盛特钢有限公司 | High heat input submerged arc welding wire steel wire rod and preparation method thereof, high heat input submerged arc welding wire, high heat input welding method |
| CN115815762A (en) * | 2022-12-15 | 2023-03-21 | 燕山大学 | 500MPa multi-wire submerged-arc welding wire rod and welding wire capable of being welded at large heat input of 100-200kJ/cm |
| CN117226335A (en) * | 2023-11-14 | 2023-12-15 | 燕山大学 | 550MPa level multi-wire submerged arc welding wire rods and wires that can be welded at a heat input of 50~125kJ/cm |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4561888A (en) * | 1982-11-02 | 1985-12-31 | Kabushiki Kaisha Kobe Seiko Sho | Welding wire for use in submerged arc welding of Cr-Mo steels |
| EP1020539A2 (en) * | 1999-01-07 | 2000-07-19 | Nippon Steel Corporation | Super-high-strength line pipe excellent in low temperature toughness and production method thereof |
| JP2005271045A (en) * | 2004-03-25 | 2005-10-06 | Nippon Steel & Sumikin Welding Co Ltd | Two-electrode large heat input submerged arc welding method |
| JP2008264812A (en) * | 2007-04-18 | 2008-11-06 | Kobe Steel Ltd | Groove filler for submerged-arc welding |
| CN102179641A (en) * | 2011-04-06 | 2011-09-14 | 钢铁研究总院 | Submerged-arc welding wire for building cargo oil tank of oil tanker |
| CN102310299A (en) * | 2010-06-29 | 2012-01-11 | 鞍钢股份有限公司 | A Flux-Cored Wire for Submerged Arc Welding Suitable for Large Input Energy Welding |
| CN102601543A (en) * | 2012-04-09 | 2012-07-25 | 天津大桥焊丝有限公司 | Low-carbon submerged arc welding wire |
| CN103692107A (en) * | 2013-12-30 | 2014-04-02 | 钢铁研究总院 | Anti-corrosion submerged-arc welding wire for tanker construction |
| CN103878500A (en) * | 2012-12-21 | 2014-06-25 | 鞍钢股份有限公司 | Submerged-arc welding solid-core welding wire with excellent low-temperature toughness and for high heat input welding |
| CN104107988A (en) * | 2013-04-22 | 2014-10-22 | 湖北猴王焊材有限公司 | High-strength and high-toughness submerged arc welding wire for deep-sea pipeline welding |
-
2014
- 2014-12-03 CN CN201410728048.4A patent/CN104476008A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4561888A (en) * | 1982-11-02 | 1985-12-31 | Kabushiki Kaisha Kobe Seiko Sho | Welding wire for use in submerged arc welding of Cr-Mo steels |
| EP1020539A2 (en) * | 1999-01-07 | 2000-07-19 | Nippon Steel Corporation | Super-high-strength line pipe excellent in low temperature toughness and production method thereof |
| JP2005271045A (en) * | 2004-03-25 | 2005-10-06 | Nippon Steel & Sumikin Welding Co Ltd | Two-electrode large heat input submerged arc welding method |
| JP2008264812A (en) * | 2007-04-18 | 2008-11-06 | Kobe Steel Ltd | Groove filler for submerged-arc welding |
| CN102310299A (en) * | 2010-06-29 | 2012-01-11 | 鞍钢股份有限公司 | A Flux-Cored Wire for Submerged Arc Welding Suitable for Large Input Energy Welding |
| CN102179641A (en) * | 2011-04-06 | 2011-09-14 | 钢铁研究总院 | Submerged-arc welding wire for building cargo oil tank of oil tanker |
| CN102601543A (en) * | 2012-04-09 | 2012-07-25 | 天津大桥焊丝有限公司 | Low-carbon submerged arc welding wire |
| CN103878500A (en) * | 2012-12-21 | 2014-06-25 | 鞍钢股份有限公司 | Submerged-arc welding solid-core welding wire with excellent low-temperature toughness and for high heat input welding |
| CN104107988A (en) * | 2013-04-22 | 2014-10-22 | 湖北猴王焊材有限公司 | High-strength and high-toughness submerged arc welding wire for deep-sea pipeline welding |
| CN103692107A (en) * | 2013-12-30 | 2014-04-02 | 钢铁研究总院 | Anti-corrosion submerged-arc welding wire for tanker construction |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105234583A (en) * | 2015-10-26 | 2016-01-13 | 钢铁研究总院 | X80 submerged-arc welding wire applicable to welding of coal-to-gas pipes |
| CN105458549A (en) * | 2015-12-18 | 2016-04-06 | 钢铁研究总院 | Submerged arc welding wire for reactor supporting structure steel |
| CN107999958A (en) * | 2017-12-08 | 2018-05-08 | 首钢集团有限公司 | A kind of welding method for ensureing armour plate welding point ballistic performance |
| CN112404671A (en) * | 2020-11-06 | 2021-02-26 | 李素坤 | Solid welding wire for FCB (flux cored arc welding) method high heat input submerged arc welding and preparation method and application thereof |
| CN113798729A (en) * | 2021-09-23 | 2021-12-17 | 包头钢铁（集团）有限责任公司 | Rare earth solid welding wire with excellent low-temperature impact toughness |
| CN114378480A (en) * | 2022-02-08 | 2022-04-22 | 张家港荣盛特钢有限公司 | High heat input submerged arc welding wire steel wire rod and preparation method thereof, high heat input submerged arc welding wire, high heat input welding method |
| CN115815762A (en) * | 2022-12-15 | 2023-03-21 | 燕山大学 | 500MPa multi-wire submerged-arc welding wire rod and welding wire capable of being welded at large heat input of 100-200kJ/cm |
| CN115815762B (en) * | 2022-12-15 | 2025-07-25 | 燕山大学 | 500MPa multi-wire submerged arc welding wire rod capable of being welded with 100-200 kJ/cm high heat input and welding wire |
| CN117226335A (en) * | 2023-11-14 | 2023-12-15 | 燕山大学 | 550MPa level multi-wire submerged arc welding wire rods and wires that can be welded at a heat input of 50~125kJ/cm |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101992365B (en) | High-strength and high-tenacity gas shielded welding wire | |
| CN104476008A (en) | Welding wire for high-heat-input submerged-arc welding | |
| CN101733580B (en) | 800MPa-grade high-strength high-tenacity gas shielded welding wire | |
| CN102719745B (en) | High-strength low-temperature steel with high hydrogen induced cracking (HIC) and sulfide stress corrosion cracking (SSC) resistance and manufacturing method thereof | |
| CN101716706B (en) | High-strength alloy solid cored welding wire | |
| CN100519050C (en) | Austenitic stainless steel gas shield welding wire for vehicle | |
| CN104493374A (en) | Austenitic stainless steel welding wire and welding technology thereof | |
| CN101722386B (en) | Gas shield welding wire with high strength and tenacity | |
| EP3156168B1 (en) | Submerged arc welding wire and welding method | |
| CN106392373B (en) | A kind of high intensity gas shielded solid welding wire of 1000MPa grades of engineering machinery | |
| CN104785955A (en) | Gas-shielded welding wire for ultrahigh-strength steel and welding seam metal | |
| CN104923967B (en) | High-strength high-toughness gas-shielded welding wire capable of avoiding preheating and weld metal | |
| CN106001990A (en) | High strength and toughness submerged arc welding wire of high-strength steel for ocean platform and weld metal prepared through welding wire | |
| KR20250051739A (en) | Corrosion-resistant 460MPa grade steel plate and its production method | |
| CN110434507A (en) | A kind of underwater additive repair wire material for marine engineering | |
| CN104923989B (en) | Medicine core and gas protecting welding wire for high heat-input electro-gas (enclosed) welding gas protecting welding wire | |
| CN106853561A (en) | A kind of polar region ship steel high-strength and high ductility welding wire for submerged-arc welding and its application method | |
| CN105195919A (en) | Steel for gas shielded welding wire for high-strength weathering steel and welding wire | |
| CN102069320A (en) | Submerged arc welding wire for superstrength pipeline steel and production method thereof | |
| CN106312365A (en) | Gas shielded welding wire for high-strength high-toughness weathering resistant steel | |
| CN110640350B (en) | Ultrahigh-strength gas shielded welding wire and wire rod | |
| CN101664863B (en) | Seawater corrosion resistant submerged arc welding wire | |
| CN103350290B (en) | Electroslag welding solid welding wire for low-temperature steel plate | |
| JP5966907B2 (en) | Steel material for large heat input welding | |
| CN106271205B (en) | An alloy welding wire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150401 |