CN110819909A - 一种耐高温气门喷焊粉末 - Google Patents

一种耐高温气门喷焊粉末 Download PDF

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CN110819909A
CN110819909A CN201911145691.3A CN201911145691A CN110819909A CN 110819909 A CN110819909 A CN 110819909A CN 201911145691 A CN201911145691 A CN 201911145691A CN 110819909 A CN110819909 A CN 110819909A
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percent
temperature
spray welding
powder
resistant valve
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钱铸
高莹
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Tianjin Gold Casting Technology Development Ltd By Share Ltd
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Tianjin Gold Casting Technology Development Ltd By Share Ltd
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    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C30/00—Alloys containing less than 50% by weight of each constituent
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
    • C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
    • C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/06—Metallic material
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/134—Plasma spraying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/02—Selecting particular materials for valve-members or valve-seats; Valve-members or valve-seats composed of two or more materials
    • F01L3/04—Coated valve members or valve-seats

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Powder Metallurgy (AREA)
  • Coating By Spraying Or Casting (AREA)

Abstract

本发明提供了一种耐高温气门喷焊粉末，按重量百分比计，由如下成份组成：Cr：18‑24％；Mo：4‑6％；Ni：13％；Hf：3‑5％；Ta：2‑3％；C：≤1％；Fe：余量。本发明所述的一种耐高温气门喷焊粉末成本低；高温强度高，由于粉末成分中含有Hf与Ta，其碳化物HfC和TaC的强化学键作用，使其高温时也具备稳定的结构，本粉末喷焊层可以在800度是保持抗拉强度780Mpa；工艺宽泛，可以使用等离子喷焊工艺同时适用于激光熔敷工艺其工艺窗口宽，性价比高。

Description

一种耐高温气门喷焊粉末
技术领域
本发明属于表面改性用合金粉体材料技术领域，尤其是涉及一种耐高温气门喷焊粉末。
背景技术
燃油发动机气门密封面需要耐受700-800度高温，为保证汽车发动机的使用寿命。目前，采用等离子粉末喷焊方法在气门边缘喷焊Stellite 6号钴基合金粉末，由于其耐高温特性可以延缓气门的高温腐蚀，延长汽车发动机使用寿命。但是我国由于钴原料缺乏，价格昂贵，限制了其使用，因此工矿企业十分渴望出现一种价廉质优，具有耐高温耐磨的材料替代钴基合金粉末，以满足对汽车进排气阀密封面堆焊的技术要求。
发明内容
有鉴于此，本发明旨在提出一种耐高温气门喷焊粉末用于用于发动机气门表面改性的粉体材料，具有良好的耐高温特性。
为达到上述目的，本发明的技术方案是这样实现的：
一种耐高温气门喷焊粉末，按重量百分比计，由如下成份组成：Cr：18-24％；Mo：4-6％；Ni：13％；Hf：3-5％；Ta：2-3％；C：≤1％；Fe：余量。
进一步的，所述耐高温气门喷焊粉末，按重量百分比计，由如下成份组成：Cr：18％；Mo：4％；Ni:13％；Hf：3％；Ta：2％；C：0.08％；Fe：余量。
进一步的，所述耐高温气门喷焊粉末，按重量百分比计，由如下成份组成：Cr：21％；Mo：5％；Ni：13％；Hf：4％；Ta：2.2％；C：0.1％；Fe：余量。
进一步的，所述耐高温气门喷焊粉末，按重量百分比计，由如下成份组成：Cr：24％；Mo：6％；Ni：13％；Hf：4％；Ta：2.6％；C：0.15％；Fe：余量。
相对于现有技术，本发明所述的一种耐高温气门喷焊粉末具有以下优势：
(1)成本低，本发明用镍基合金粉末替代钴基合金粉末，本发明镍基合金粉末价格相当于钴基合金粉末价格的1/3，成本低；本发明具有高性能的优点，能替代Stellite 6号钴基合金粉末。
(2)高温强度高，由于粉末成分中含有Hf与Ta，其碳化物HfC和TaC的强化学键作用，使其高温时也具备稳定的结构，本粉末喷焊层可以在800度是保持抗拉强度780Mpa。
(3)工艺宽泛，本例中的粉末可以使用等离子喷焊工艺同时适用于激光熔敷工艺其工艺窗口宽，性价比高。。
具体实施方式
除有定义外，以下实施例中所用的技术术语具有与本发明所属领域技术人员普遍理解的相同含义。以下实施例中所用的试验试剂，如无特殊说明，均为常规生化试剂；所述实验方法，如无特殊说明，均为常规方法。
下面结合实施例来详细说明本发明。
实施例1
一种耐高温气门喷焊粉末，按重量百分比计，由如下成份组成：Cr：18％；Mo：4％；Ni:13％；Hf：3％；Ta：2％；C：0.08％；Fe：余量。
实施例2
一种耐高温气门喷焊粉末，按重量百分比计，由如下成份组成：Cr：21％；Mo：5％；Ni：13％；Hf：4％；Ta：2.2％；C：0.1％；Fe：余量。
实施例3
一种耐高温气门喷焊粉末，按重量百分比计，由如下成份组成：Cr：24％；Mo：6％；Ni：13％；Hf：4％；Ta：2.6％；C：0.15％；Fe：余量。
本发明所述的一种耐高温气门喷焊粉末的制备工艺采用雾化法。
本发明所述的一种耐高温气门喷焊粉末,为奥氏体组织，具有高温性，其中加入Cr﹑Mo等元素为固溶沉积强化，Hf、Ta等元素为强碳化钨形成物，提高基体强度和硬度，Ni的加入改善了本发明合金的可焊性，通过加入合金元素控制，使该合金具有适宜的硬度和耐高温抗擦伤磨损性。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (4)

1.一种耐高温气门喷焊粉末，其特征在于：按重量百分比计，由如下成份组成：Cr：18-24％；Mo：4-6％；Ni：13％；Hf：3-5％；Ta：2-3％；C：≤1％；Fe：余量。
2.根据权利要求1所述的一种耐高温气门喷焊粉末，其特征在于：按重量百分比计，由如下成份组成：Cr：18％；Mo：4％；Ni:13％；Hf：3％；Ta：2％；C：0.08％；Fe：余量。
3.根据权利要求1所述的一种耐高温气门喷焊粉末，其特征在于：按重量百分比计，由如下成份组成：Cr：21％；Mo：5％；Ni：13％；Hf：4％；Ta：2.2％；C：0.1％；Fe：余量。
4.根据权利要求1所述的一种耐高温气门喷焊粉末，其特征在于：按重量百分比计，由如下成份组成：Cr：24％；Mo：6％；Ni：13％；Hf：4％；Ta：2.6％；C：0.15％；Fe：余量。
CN201911145691.3A 2019-11-21 2019-11-21 一种耐高温气门喷焊粉末 Pending CN110819909A (zh)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3010211B1 (ja) * 1998-09-08 2000-02-21 科学技術庁金属材料技術研究所長 溶接方法
CN1280063C (zh) * 2001-06-05 2006-10-18 阿尔法拉瓦尔有限公司 铜焊材料和由其制造的铜焊产品
DK1209246T3 (da) * 2000-11-07 2008-01-28 Sulzer Metco Osu Gmbh Fremgangsmåde til fremstilling af slid- og/eller korrosionsresistente overfladebelægninger samt midler til gennemförelse af fremgangsmåden
CN101342648A (zh) * 2008-08-18 2009-01-14 天津市铸金表面工程材料科技开发有限公司 高压阀门密封面堆焊用的铁基合金粉末
CN101583733A (zh) * 2007-01-15 2009-11-18 住友金属工业株式会社 奥氏体系不锈钢焊接接头以及奥氏体系不锈钢焊接材料
CN101605628A (zh) * 2006-11-17 2009-12-16 阿尔法拉瓦尔股份有限公司 铜焊材料

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3010211B1 (ja) * 1998-09-08 2000-02-21 科学技術庁金属材料技術研究所長 溶接方法
DK1209246T3 (da) * 2000-11-07 2008-01-28 Sulzer Metco Osu Gmbh Fremgangsmåde til fremstilling af slid- og/eller korrosionsresistente overfladebelægninger samt midler til gennemförelse af fremgangsmåden
CN1280063C (zh) * 2001-06-05 2006-10-18 阿尔法拉瓦尔有限公司 铜焊材料和由其制造的铜焊产品
CN101605628A (zh) * 2006-11-17 2009-12-16 阿尔法拉瓦尔股份有限公司 铜焊材料
CN101583733A (zh) * 2007-01-15 2009-11-18 住友金属工业株式会社 奥氏体系不锈钢焊接接头以及奥氏体系不锈钢焊接材料
CN101342648A (zh) * 2008-08-18 2009-01-14 天津市铸金表面工程材料科技开发有限公司 高压阀门密封面堆焊用的铁基合金粉末

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Application publication date: 20200221