CN106041360A - 一种立角焊小焊脚钛型高韧性药芯焊丝及其制备方法 - Google Patents

一种立角焊小焊脚钛型高韧性药芯焊丝及其制备方法 Download PDF

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CN106041360A
CN106041360A CN201610618796.6A CN201610618796A CN106041360A CN 106041360 A CN106041360 A CN 106041360A CN 201610618796 A CN201610618796 A CN 201610618796A CN 106041360 A CN106041360 A CN 106041360A
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flux
cored wire
vertical position
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郑子行
杨新禄
崔伟
杨敬雷
杨钢
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TIANJIN BRIDGE WELDING MATERIALS GROUP CO Ltd
TIANJIN DAQIAO SOLDERING WIRE OF METAL CO Ltd
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TIANJIN BRIDGE WELDING MATERIALS GROUP CO Ltd
TIANJIN DAQIAO SOLDERING WIRE OF METAL CO Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24Selection of soldering or welding materials proper
    • B23K35/30Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
    • B23K35/3053Fe as the principal constituent
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/02Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
    • B23K35/0255Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
    • B23K35/0261Rods, electrodes, wires
    • B23K35/0266Rods, electrodes, wires flux-cored
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/36Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
    • B23K35/3601Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with inorganic compounds as principal constituents
    • B23K35/3608Titania or titanates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/36Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
    • B23K35/368Selection of non-metallic compositions of core materials either alone or conjoint with selection of soldering or welding materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/40Making wire or rods for soldering or welding
    • B23K35/406Filled tubular wire or rods

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Nonmetallic Welding Materials (AREA)

Abstract

本发明公开了一种立角焊小焊脚钛型高韧性药芯焊丝及其制备方法。药芯焊丝相对于焊丝总质量的药粉填充率为10%‑‑18%,所述焊丝配方重量百分比为:TiO2 25—55%、SiO2 1%‑15%、Al2O3 2%‑‑6%、氟化物1.5%‑‑4%、其它氧化物0.1%‑‑0.8%、硅锰合金16%‑‑28%、金属镁1%‑‑7%、Al 0.1%‑‑0.8%、B≤0.15%,Ti 0.1%‑‑1.5%,铁粉余量。焊丝在制备时采用绞刀填充药粉的成型轧机制备,本发明药芯焊丝具有优良的焊接工艺性能,尤其是立焊小脚焊成形美观。通过微合金化,该焊丝具有较理想的低温韧性值。

Description

一种立角焊小焊脚钛型高韧性药芯焊丝及其制备方法
技术领域
本发明涉及药芯焊丝及其制备方法,尤其是一种立角焊小焊脚钛型高韧性药芯焊丝及其制备方法,通过微合金化使其兼具高韧性特质,属于焊接材料领域。
背景技术
随着我国造船及海洋工程制造技术的迅猛发展,迫切需要一种适应立角焊小焊脚且具高韧性特质的钛型药芯焊丝。目前,此类焊丝焊接工艺性能虽能满足施工要求,但低温韧性值波动大尤其在焊接立角焊位置要求小焊脚成形方面不尽人意。
发明内容
本发明所要解决的技术问题是,提供一种焊接工艺优良且具有高韧性的立角焊小焊脚成形美观兼具高韧性的钛型药芯焊丝。
为了解决上述技术问题,本发明采用的技术方案是:一种立角焊小焊脚钛型高韧性药芯焊丝,包括低碳冷轧钢带的焊丝外皮和药芯,按照质量百分比,所述药芯焊丝配方为:TiO2 25%—55%、SiO2 1%-15%、Al2O3 2%--6%、氟化物1.5%--4%、其它氧化物0.1%--0.8%、硅锰合金16%--28%、金属镁1%--7%、Al 0.1%--0.8%、B≤0.15、Ti0.1%--1.5%,铁粉余量。
按重量百分比计,药芯焊丝的填充率为:10%-18%。
上述的立角焊小焊脚钛型高韧性药芯焊丝的制备方法,包括以下步骤:按所述配方组分比例取各种材料,TiO2、SiO2、Al2O3、氟化物、其它氧化物进行高温380-450℃烘焙5-7小时,硅锰合金、Al、B、Ti、铁粉进行低温80-180℃烘焙2-4小时;将烘焙好的药粉和金属镁进行混合并搅拌均匀;采用绞刀式成型轧机,按照规定的填充率填充药粉进行轧制并减径至所需规格。
本发明的有益效果是:本发明药芯焊丝具有优良的焊接工艺性能,尤其是立焊小脚焊成形美观。通过微合金化,具有较理想的低温韧性值。
具体实施方式
下面结合具体实施方式对本发明作进一步详细说明:
本发明的焊丝由优质低碳冷轧钢带作为外皮和药芯构成,按照质量百分比,所述药芯的配方重量百分比为:
表1
TiO2 25%-55%
SiO2 1%-15%
Al2O3 2%-6%
氟化物 1.0%-4%
其他氧化物 0.1%-0.8%
硅锰合金 16%-28%
金属镁 1%-7%
Al 0.1%-2.0%
B ≤0.15
Ti 0.1%-2.0%
铁粉 余量
所述药芯焊丝的填充率为:10%-18%。
上述的立角焊小焊脚钛型高韧性药芯焊丝的制备方法,包括以下步骤:按所述配方组分比例取各种材料,TiO2、SiO2、Al2O3、氟化物、其它氧化物进行高温380-450℃烘焙5-7小时,硅锰合金、Al、B、Ti、铁粉进行低温80-180℃烘焙2-4小时;将烘焙好的药粉和金属镁进行混合并搅拌均匀;采用绞刀式成型轧机,按照规定的填充率填充药粉进行轧制并减径至所需规格。
具体地说,本发明的成分作用如下:
TiO2:药芯组成的重要成份,主要作用是稳弧、造渣、调整熔渣物理性能、改善焊缝成型和减少飞溅。若含量过低,则不易形成短渣,对立、横焊位置不利,适量的TiO2会起到针状铁素体形核核心的作用,使焊缝组织和韧性得到改善;若含量过高,则明显影响综合力学性能。
SiO2:是主要的酸性氧化物,有增加熔渣的活泼性,改善熔渣的流动性,降低熔渣表面张力,有利于提高成形美观程度和脱渣性能,含量过多影响冲击韧性。
Al2O3:可与氟化物形成较好的熔渣,保护焊缝金属,以利于稳定电弧和减小飞溅。
硅锰合金:作为脱氧剂和合金剂使用。
铝、金属镁、钛:上述金属与氧的亲和力比铁强,在高温下药芯中的镁、铝、钛优先和氧发生反应,通过先期脱氧来降低电弧气氛的氧化势,以降低焊缝金属中的含氧量,以提高焊缝韧性。对立角焊成形有作用。
Ti、B:微合金化,其作用在于能抑制先共析铁素体的生成,为针状铁素体或其它中、低温相变产物的生成创造了条件。针状铁素体数量的增加,最终导致焊缝金属韧性的提高。但是,硼的含量必须严格控制,当含硼量超过一定值时,硼化物会在晶界形成连续的网状分布,这时韧性会急剧降低并会产生其它缺陷。
氟化物:主要起到造渣和稀渣的作用,可以增大熔渣的流动性,焊接时,产生HF,有利于降低电弧气氛中的氢的分解,从而起到去氢的作用。
为了更好地理解本发明,下面通过实施例进一步说明,但本发明并不局限于下述实施例。
实施例1-4,采用前述生产制造工艺,按表2的配方制备成药芯焊丝。实施例1.高温380℃、7小时,低温80℃、4小时;实施例2.高温400℃、6小时,低温180℃、2小时;实施例3高温450℃、5小时,低温140℃、2小时;实施例5高温420℃、6小时,低温160℃、3小时;
表2.实施配方
表3.熔敷金属焊态力学性能
表4.熔敷金属焊态化学成分:
表五.立角焊小焊脚成形评定
实施例 立角焊小焊脚成形评定
实施例1 摆弧或直弧熔合差,凸度较高,成形不美观
实施例2 摆弧或直弧熔合稍差,凸度稍高,成形一般
实施例3 摆弧或直弧立角焊熔合较好,凸度圆润,美观。
实施例4 摆弧或直弧立角焊熔合较好,凸度圆润,美观。
以上所述的实施例仅用于说明本发明的技术思想及特点,其目的在于使本领域内的技术人员能够理解本发明的内容并据以实施,不能仅以本实施例来限定本发明的专利范围,即凡本发明所揭示的精神所作的同等变化或修饰,仍落在本发明的专利范围内。

Claims (3)

1.一种立角焊小焊脚钛型高韧性药芯焊丝,包括低碳冷轧钢带的焊丝外皮和药芯,其特征在于,按照质量百分比,所述药芯焊丝配方为:TiO2 25%—55%、SiO2 1%-15%、Al2O32%--6%、氟化物1.5%--4%、其它氧化物0.1%--0.8%、硅锰合金16%--28%、金属镁1%--7%、Al 0.1%--0.8%、B≤0.15、Ti 0.1%--1.5%,铁粉余量。
2.根据权利要求1所述的立角焊小焊脚钛型高韧性药芯焊丝,其特征在于,按重量百分比计,药芯焊丝的填充率为:10%-18%。
3.如权利要求1所述的立角焊小焊脚钛型高韧性药芯焊丝的制备方法,其特征在于,包括以下步骤:按所述配方组分比例取各种材料,TiO2、SiO2、Al2O3、氟化物、其它氧化物进行高温380-450℃烘焙5-7小时,硅锰合金、Al、B、Ti、铁粉进行低温80-180℃烘焙2-4小时;将烘焙好的药粉和金属镁进行混合并搅拌均匀;采用绞刀式成型轧机,按照规定的填充率填充药粉进行轧制并减径至所需规格。
CN201610618796.6A 2016-07-27 2016-07-27 一种立角焊小焊脚钛型高韧性药芯焊丝及其制备方法 Pending CN106041360A (zh)

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CN106624445A (zh) * 2016-12-14 2017-05-10 安徽华众焊业有限公司 耐腐蚀钢用药芯焊丝

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106624445A (zh) * 2016-12-14 2017-05-10 安徽华众焊业有限公司 耐腐蚀钢用药芯焊丝

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Application publication date: 20161026