CN104532230A - 一种薄壁金属偶合管件的表面激光熔覆方法 - Google Patents

一种薄壁金属偶合管件的表面激光熔覆方法 Download PDF

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CN104532230A
CN104532230A CN201410740302.2A CN201410740302A CN104532230A CN 104532230 A CN104532230 A CN 104532230A CN 201410740302 A CN201410740302 A CN 201410740302A CN 104532230 A CN104532230 A CN 104532230A
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cladding
thin
laser
surface laser
walled metal
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孙家枢
黄鹏
王克会
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TIANJIN BINHAI LEIKESI LASER TECHNOLOGY DEVELOPMENT Co Ltd
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TIANJIN BINHAI LEIKESI LASER TECHNOLOGY DEVELOPMENT Co Ltd
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    • 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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Laser Beam Processing (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

一种薄壁金属偶合管件的表面激光熔覆方法。本发明是一种薄壁金属偶合管件的激光熔覆方法，其特征是管件直径为150-220mm，壁厚1mm-3mm，熔覆长度为30-50mm，厚度1-2mm的整体面积，熔覆后效果良好，管件变形量小于0.1%（精密偶合管件熔覆后依然可以顺利偶合进入）并具有较高强度及优异耐磨性。

Description

一种薄壁金属偶合管件的表面激光熔覆方法
技术领域
本项发明涉及金属再制造高新技术领域中的激光熔覆，特别涉及一种激光熔覆中的薄壁金属偶合管件的激光熔覆。
背景技术
随着科技的发展，薄壁金属偶合管件应用越来越多，而且所使用的工况也越来越恶劣，岩层，强腐蚀等等不良环境，导致薄壁偶合管件维修频率增高。传统方法TIG焊接，其焊接过程，用于焊接热输入量大；在焊接位置产生较大的残余应力收缩变形较大，难以保证修复零件的安装精度，无法偶合导致工件报废，增加企业成本投入。激光熔覆，是将高能密度的激光束照射到基体表面，使基体均匀微熔，并与熔覆层形成冶金结合，实现零部件的表面强化和修复。熔覆层具有与基体相同或不同的成分和性能，激光加热属于能量高度集中地快速加热和快速冷却的过程，因此对基体的热输入小，变形量小，稀释率低，熔覆层不但组织细小，而且硬度高，气孔率低，界面结合良好；用于激光束形成的熔覆层能保证被加工表面性质和特征，且操作灵活，易于实现自动化，因此与其他方法相比激光熔覆技术具有明显的优势。
发明内容
本发明所述的提供一种薄壁偶合管件激光熔覆的方法。它熔覆温度低，熔覆后不变形（精密偶合管件熔覆后依然可以顺利偶合进入），具有很强耐磨性及耐腐蚀性，且硬度高。
本发明所述的薄壁偶合管件的激光熔覆方法，所述的激光熔覆激光器为YLS-2000IPG激光器及工业机器人，配合使用。激光器功率600w-1800w ,机器人速度为120-300mm/min。
薄壁激光熔覆方法其熔覆工艺为：A：测量薄壁管件的各位置尺寸，将薄壁管件与支撑架旋转台搭接起来使薄壁管件可以匀速旋转起来，B：依据施焊位置调整机器人角度及高度，离焦量在20-30mm,设定送粉器参数及激光器与转台参数。合理的选择激光参数，包括：功率、光斑、离焦距，激光扫描速度（即激光束移动速度），调控熔池存在的时间，减少熔深、减少基体金属的熔化、减小热影响区，减少热应力。C：在施焊位置相对位置增加气冷装置保证熔覆过程中温控仪监测温度不超过120摄氏度，超出停止工作。D：熔覆后清理熔覆表面并测量数据。
以上述激光熔覆工艺方法在其特征是管件直径为150-220mm,壁厚1mm-3mm,熔覆长度为30-50mm,厚度1-2mm的整体面积，熔覆后效果良好，管件变形量小于0.1%（精密偶合管件熔覆后依然可以顺利偶合进入）并具有较高强度及优异耐磨性。
附图说明：附图1为Staubli机器人与IPG光纤激光器组合；附图2熔覆工件直观厚度，偶合丝扣及熔覆后样貌。
应用实例：薄壁精密偶合管件激光熔覆，壁厚厚度2mm，管件直径190mm,管件整个长度695mm,熔覆面积为50mm长，高度1-2mm,同步送合金粉末，然后用装于Staubli机器人臂上的IPG光纤激光器激光头（附图2），按编制好的路径程序在工件表面进行激光扫描熔覆，转台参数18-33，送粉量5-15g/min，氩气保护0.3Mpa，气冷装置搭接完毕，熔覆前尺寸测定。熔覆后同样测定尺寸，管件依然能与套筒偶合，且耐磨性好，达到客户要求。 见（附图1）。

Claims (3)

1.合理选择与配合参数。
2.权利1中所述的参数指离焦量，光斑，功率，焊接速度，转台速度，氩气保护量相互配合保证熔深不超过0.3mm。
3. 管壁内部空气冷却装置的安装。
CN201410740302.2A 2014-12-09 2014-12-09 一种薄壁金属偶合管件的表面激光熔覆方法 Pending CN104532230A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108823567A (zh) * 2018-08-15 2018-11-16 江苏大学 一种金属薄板高效激光熔覆装置与方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102465287A (zh) * 2010-11-03 2012-05-23 沈阳大陆激光技术有限公司 一种激光熔覆具有三层金属的复合管材的制造方法
CN103180084A (zh) * 2010-10-22 2013-06-26 特塑耐公司 立式激光熔覆系统
CN104005022A (zh) * 2014-06-04 2014-08-27 辽宁工业大学 一种铁基粉末激光熔覆管道成型方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103180084A (zh) * 2010-10-22 2013-06-26 特塑耐公司 立式激光熔覆系统
CN102465287A (zh) * 2010-11-03 2012-05-23 沈阳大陆激光技术有限公司 一种激光熔覆具有三层金属的复合管材的制造方法
CN104005022A (zh) * 2014-06-04 2014-08-27 辽宁工业大学 一种铁基粉末激光熔覆管道成型方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108823567A (zh) * 2018-08-15 2018-11-16 江苏大学 一种金属薄板高效激光熔覆装置与方法

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