CN104874938A - 一种Co-Ti-Mo-W纳米焊层及其制备方法 - Google Patents
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- 238000003466 welding Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 238000012387 aerosolization Methods 0.000 claims description 6
- 239000002077 nanosphere Substances 0.000 claims description 6
- 230000007797 corrosion Effects 0.000 abstract description 9
- 238000005260 corrosion Methods 0.000 abstract description 9
- 230000007547 defect Effects 0.000 abstract description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 2
- 229910052593 corundum Inorganic materials 0.000 abstract 2
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- 238000009689 gas atomisation Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
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- 239000000463 material Substances 0.000 description 1
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- 230000008439 repair process Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- 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
- B23K35/3046—Co as the principal constituent
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- 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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C19/00—Alloys based on nickel or cobalt
- C22C19/07—Alloys based on nickel or cobalt based on cobalt
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
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- B23K9/00—Arc welding or cutting
- B23K9/04—Welding for other purposes than joining, e.g. built-up welding
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- 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
- B23K9/00—Arc welding or cutting
- B23K9/18—Submerged-arc welding
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Abstract
本发明涉及一种Co-Ti-Mo-W纳米焊层及其制备方法,包括以下质量百分比的组分:Co占76%~81%,Ti占8%~20%、Mo占3%~5%、W占3%~5%、Al2O3占0.5%~1.5%,Gr占1%~2%。所述方法步骤如下:所述Co、Ti、Mo、W、Al2O3、Gr均采用气雾化法制得纳米球,再均匀混合制成纳米焊条,最终焊接在零部件表面形成纳米焊层。本发明制成的纳米焊层具有组分搭配合理、耐磨性和耐腐蚀性强等优点,弥补了传统的焊条存在了结合强度低、耐磨性、耐腐蚀性差的缺陷,改善了零部件的使用性能,延长了零部件的使用寿命,节省了设备使用和维护的成本。
Description
技术领域
本发明涉及埋弧焊焊接技术领域,具体的说是一种Co-Ti-Mo-W纳米焊层及其制备方法。
背景技术
增材是一种较为常见的零部件修补方式,如对于模具的修改,常常选择特定的焊条通过焊接的方式,与原模具结合构成一体,再利用打磨和抛光处理的方式,使模具的结构外形符合实际的使用需求。再如,已磨损的机械零部件,通常采用焊接的方式,以实现对磨损区域的填补,但是传统的焊条内部组分构成简单,形成的焊层只能够对零部件的外形进行弥补,并不能够对零部件的性能进行改善,结合强度较低,耐磨性和耐腐蚀性较差,不能满足零部件修复的高质量的要求。
发明内容
本发明所要解决的技术问题是提供一种Co-Ti-Mo-W纳米焊层及其制备方法。
本发明所要解决的技术问题采用以下技术方案来实现:
一种Co-Ti-Mo-W纳米焊层,包括以下质量百分比的组分:Co占76%~81%,Ti占8%~20%、Mo占3%~5%、W占3%~5%、Al2O3占0.5%~1.5%,Gr占1%~2%。
一种Co-Ti-Mo-W纳米焊层的制备方法,所述方法步骤如下:所述Co、Ti、Mo、W、Al2O3、Gr均采用气雾化法制得纳米球,再均匀混合制成纳米焊条,最终焊接在零部件表面形成纳米焊层。按照本发明的组分和配比进行加工,制成的纳米焊层的结合强度高,耐磨性和耐腐蚀性强,与零部件结合后,极大的改善了零部件的使用性能。
所述组分的最佳质量百分比为:Co占78%,Ti占12%、Mo占4%、W占3.5%、Al2O3占1%,Gr占1.5%。
Co即钴,与其它组分制成混合物,并最终制成纳米焊层,经过打磨、抛光处理后,焊层表面会出现淡蓝的光泽,从而有助于区分已修复零部件与新零部件,避免零部件之间的混淆。Ti本身具有较强的耐腐蚀性,化学性能稳定,以保证焊层成型后的质量;Mo具有高温强度好、硬度高、密度大、抗腐蚀能力强、热膨胀系数小等优点,有助于进一步提升焊层的硬度,改善焊层的耐高温和耐腐蚀的特性;Al2O3有助于提高焊层的结合强度,减小气孔率。
本发明的有益效果是:本发明制成的纳米焊层具有组分搭配合理、耐磨性和耐腐蚀性强等优点,弥补了传统的焊条存在了结合强度低、耐磨性、耐腐蚀性差的缺陷,改善了零部件的使用性能,延长了零部件的使用寿命,节省了设备使用和维护的成本。
具体实施方式
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解,下面对本发明进一步阐述。
实施例一:
一种Co-Ti-Mo-W纳米焊层,包括以下质量百分比的组分:Co占78%,Ti占12%、Mo占4%、W占3.5%、Al2O3占1%,Gr占1.5%。
一种Co-Ti-Mo-W纳米焊层的制备方法,所述方法步骤如下:所述Co、Ti、Mo、W、Al2O3、Gr均采用气雾化法制得纳米球,再均匀混合制成纳米焊条,最终焊接在零部件表面形成纳米焊层。
实施例二:
一种Co-Ti-Mo-W纳米焊层,包括以下质量百分比的组分:Co占81%,Ti占11.5%、Mo占3%、W占3%、Al2O3占0.5%,Gr占1%。
一种Co-Ti-Mo-W纳米焊层的制备方法,所述方法步骤如下:所述Co、Ti、Mo、W、Al2O3、Gr均采用气雾化法制得纳米球,再均匀混合制成纳米焊条,最终焊接在零部件表面形成纳米焊层。
实施例三:
一种Co-Ti-Mo-W纳米焊层,包括以下质量百分比的组分:Co占78.5%,Ti占8%、Mo占5%、W占5%、Al2O3占1.5%,Gr占2%。
一种Co-Ti-Mo-W纳米焊层的制备方法,所述方法步骤如下:所述Co、Ti、Mo、W、Al2O3、Gr均采用气雾化法制得纳米球,再均匀混合制成纳米焊条,最终焊接在零部件表面形成纳米焊层。
实施例四:
一种Co-Ti-Mo-W纳米焊层,包括以下质量百分比的组分:Co占76%,Ti占15%、Mo占3%、W占4%、Al2O3占1%,Gr占1%。
一种Co-Ti-Mo-W纳米焊层的制备方法,所述方法步骤如下:所述Co、Ti、Mo、W、Al2O3、Gr均采用气雾化法制得纳米球,再均匀混合制成纳米焊条,最终焊接在零部件表面形成纳米焊层。
为了论证本发明的实际效果,特采用埋弧焊焊接技术在轧辊上制备了纳米焊层,将实施例一至实施例四实施后,分别测试了焊层的结合强度、显微硬度、气孔率以及抗磨粒磨损性能,并利用XRD对焊层进行了相结构分析。实验结果如下:
编号 | 孔隙率(AREA%) | 结合强度(MPa) | 显微硬度(HV) |
实施例一 | 0.318 | 87.7 | 663 |
实施例二 | 0.331 | 85.7 | 614 |
实施例三 | 0.325 | 78.4 | 642 |
实施例四 | 0.346 | 81.1 | 622 |
平均值 | 0.330 | 83.2 | 635 |
对比组 | 0.516 | 71.3 | 509 |
其中,对比组为普通合金丝材。
由上述实验对比数据可知,本发明采用纳米材料经过焊接后形成纳米焊层,相比于传统的焊条制成的焊层,具有较高的结合强度和显微硬度,孔隙率较小,可使零部件的性能得以改善,最终达到延长零部件使用寿命的目的。
以上显示和描述了本发明的基本原理、主要特征和本发明的优点。本行业的技术人员应该了解,本发明不受步骤实施例的限制,步骤实施例和说明书中描述的只是本发明的原理,在不脱离本发明精神和范围的前提下,本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。
Claims (3)
1.一种Co-Ti-Mo-W纳米焊层,其特征在于:包括以下质量百分比的组分:
Co占76%~81%,Ti占8%~20%、Mo占3%~5%、W占3%~5%、Al2O3占0.5%~1.5%,Gr占1%~2%。
2.根据权利要求1所述的一种Co-Ti-Mo-W纳米焊层,其特征在于:所述组分的最佳质量百分比为:Co占78%,Ti占12%、Mo占4%、W占3.5%、Al2O3占1%,Gr占1.5%。
3.根据权利要求1所述的一种Co-Ti-Mo-W纳米焊层的制备方法,其特征在于:所述方法步骤如下:
所述Co、Ti、Mo、W、Al2O3、Gr均采用气雾化法制得纳米球,再均匀混合制成纳米焊条,最终焊接在零部件表面形成纳米焊层。
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0293695A1 (en) * | 1987-06-01 | 1988-12-07 | General Electric Company | Alloy powder mixture for treating alloys |
CN1994656A (zh) * | 2005-12-15 | 2007-07-11 | 通用电气公司 | 钎焊合金组合物 |
CN101591482A (zh) * | 2008-11-28 | 2009-12-02 | 中国电力科学研究院 | 一种耐磨耐蚀纳米结构Ni基涂层及制备方法 |
CN104388885A (zh) * | 2014-10-30 | 2015-03-04 | 安徽鼎恒再制造产业技术研究院有限公司 | 一种高硬度Ni60A-WC纳米涂层及其制备方法 |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0293695A1 (en) * | 1987-06-01 | 1988-12-07 | General Electric Company | Alloy powder mixture for treating alloys |
CN1994656A (zh) * | 2005-12-15 | 2007-07-11 | 通用电气公司 | 钎焊合金组合物 |
CN101591482A (zh) * | 2008-11-28 | 2009-12-02 | 中国电力科学研究院 | 一种耐磨耐蚀纳米结构Ni基涂层及制备方法 |
CN104388885A (zh) * | 2014-10-30 | 2015-03-04 | 安徽鼎恒再制造产业技术研究院有限公司 | 一种高硬度Ni60A-WC纳米涂层及其制备方法 |
Non-Patent Citations (1)
Title |
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赵秀娟等: "纳米复合粉末制D707焊条", 《硬质合金》 * |
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