CN114921745B - 一种改善喷涂粒子沉积环境的装置和方法 - Google Patents
一种改善喷涂粒子沉积环境的装置和方法 Download PDFInfo
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- 239000007921 spray Substances 0.000 title claims abstract description 42
- 239000002245 particle Substances 0.000 title claims abstract description 41
- 230000008021 deposition Effects 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 8
- 238000005192 partition Methods 0.000 claims abstract description 38
- 239000000758 substrate Substances 0.000 claims abstract description 16
- 238000005507 spraying Methods 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims description 10
- 239000011148 porous material Substances 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 abstract description 11
- 238000000576 coating method Methods 0.000 abstract description 11
- 239000011159 matrix material Substances 0.000 abstract description 4
- 230000009466 transformation Effects 0.000 abstract description 3
- 238000007751 thermal spraying Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 19
- 239000000498 cooling water Substances 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010288 cold spraying Methods 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010285 flame spraying Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- 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
- C23C4/129—Flame spraying
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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
- C23C24/02—Coating starting from inorganic powder by application of pressure only
- C23C24/04—Impact or kinetic deposition of particles
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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
- 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
- C23C4/131—Wire arc spraying
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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
- 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
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Abstract
本发明属于表面工程热喷涂技术领域,涉及一种改善喷涂粒子沉积环境的装置和方法;在喷枪的喷管与基体之间设置有隔板,所述隔板上设置有贯穿的控制孔;所述控制孔的几何中心位于喷管的轴线上;通过喷枪喷管将粒子沿控制孔喷出,使粒子喷涂在基体上;本发明实现了喷涂粒子的沉积环境由“极端‑不可控”转变为“温和‑可控”,使粒子在与基体接触时其速度和温度被有效的控制在一定的范围内,解决了涂层孔隙率高、结合强度低、质量不稳定的问题。
Description
技术领域
本发明属于表面工程热喷涂技术领域,涉及一种改善喷涂粒子沉积环境的装置和方法。
背景技术
现有喷涂一般通过气流加速粒子撞击基体形成涂层,为了实现粒子高速撞击基体,从而获得结合强度高的涂层,通常采用3种方式使气体通过缩放式喷管获得高速。一是喷枪内部通入常温高压气体,如低压冷喷涂;二是喷枪内部通入高温高压气体,如高压冷喷涂;三是喷枪内部能够产生燃烧、电弧、等离子弧等,从产生高温高压气体,如火焰喷涂、电弧喷涂与等离子喷涂等。
使用以上的喷涂方法时,粒子沉积到基体上的瞬时速度以及温度都很高,并且粒子的运行沉积速度以及与基体接触时的温度极端不可控;所以在粒子形成涂层的沉积环境为“极端-不可控”,这种环境下获得的涂层往往孔隙率高,结合强度低,难以保证涂层质量。
发明内容
本发明克服了现有技术的不足,提出一种改善喷涂粒子沉积环境的装置和方法,以实现喷涂粒子的沉积环境由“极端-不可控”转变为“温和-可控”,解决涂层孔隙率高、结合强度低、质量不稳定的问题。
为了达到上述目的,本发明是通过如下技术方案实现的。
一种改善喷涂粒子沉积环境的装置,在喷枪的喷管与基体之间设置有隔板,所述隔板上设置有贯穿的控制孔;所述控制孔的几何中心位于喷管的轴线上。
优选的,所述控制孔的剖面为喇叭状,喇叭口一端与基体相邻。
优选的,所述隔板垂直于喷管轴线。
优选的,所述隔板通过刚性连接杆与喷枪相连接。
更优的,所述刚性连接杆设置有杆长调节机构。
优选的,所述隔板内设置有冷却孔道。
优选的,所述冷却孔道的入口位于隔板底部,出口位于隔板顶部。
优选的,所述隔板内设置有保护气孔道。
更优的,多条保护气孔道的入口位于隔板的顶部和底部,出口位于隔板中心区域,并以控制孔为中心圆形排列。
使用所述装置的一种改善喷涂粒子沉积环境的方法,通过喷枪喷管将粒子沿控制孔喷出,使粒子喷涂在基体上。
本发明相对于现有技术所产生的有益效果为:
本发明通过在基体与喷枪间设置耐热隔板,耐热隔板的中心开设控制孔;通过特殊结构的控制孔只允许高速粒子及其周围很少的高温气体通过。耐热隔板的内部设置冷却水与保护气体通道,冷却水防止耐热隔板与冷却气升温过高;保护气体用于防止涂层被氧化,并降低基体表面气流温度。
本发明实现了喷涂粒子的沉积环境由“极端-不可控”转变为“温和-可控”,使粒子在与基体接触时其速度和温度被有效的控制在一定的范围内,解决了涂层孔隙率高、结合强度低、质量不稳定的问题。
附图说明
图1为本发明所述改善喷涂粒子沉积环境装置的结构示意图。
图中,1为喷枪,2为注粉针,3为缩放式喷管,4为喷涂粒子,5为刚性连接杆,6为杆长调节机构,7为喷涂射流,8为耐热隔板,9为控制孔,10为冷却水入口,11为冷却水出口,12为保护气入口,13为保护气出口,14为基体,15为冷却孔道,16为保护气孔道。
具体实施方式
为了使本发明所要解决的技术问题、技术方案及有益效果更加清楚明白,结合实施例和附图,对本发明进行进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。下面结合实施例及附图详细说明本发明的技术方案,但保护范围不被此限制。
参照图1,一种改善喷涂粒子沉积环境的装置,是在喷枪1的喷管3与基体14之间设置一块耐热型的隔板8,其中喷管3为现有的缩放式喷管,即喷管3的口径逐渐增大;隔板8垂直于喷管3的轴线,隔板8的上下两端分别通过刚性连接杆5与喷枪1相连接,在刚性连接杆5的中部设置有杆长调节机构6。杆长调节机构6为现有的结构,可以采用套接的伸缩杆。隔板8上设置有贯穿的控制孔9;控制孔9的几何中心位于喷管3的轴线上,控制孔9的剖面为喇叭状,喇叭口一端与基体14相邻。
在隔板8内设置有冷却孔道15。冷却孔道15位于隔板8的中部,冷却孔道15用于接入冷却水,以对隔板8降温;冷却孔道15的入口位于隔板8底部,出口位于隔板8顶部。
隔板8内设置有保护气孔道16,保护气孔道16靠近基体14的一侧,保护气孔道16的两个入口分别位于隔板8的顶部和底部,六个出口位于隔板8中心区域,并以控制孔9为中心圆形排列。
一种改善喷涂粒子沉积环境的方法,是采用上述的装置通过喷枪喷管将粒子沿控制孔9喷出,使粒子喷涂在基体14上。
本实施例在基体14与喷枪1间增设一块耐热的隔板8,耐热的隔板8与喷枪1刚性连接。隔板8的中心开有控制孔9。控制孔9只充许高速粒子及其周围很少的高温气体通过。隔板8的内部设置冷却水与保护气体通道。冷却水防止耐热隔板与冷却气升温过高;保护气体防止涂层被氧化,并降低基体表面气流温度。
本实施例可实现喷涂粒子的沉积环境由“极端-不可控”转变为“温和-可控”,解决涂层孔隙率高、结合强度低、质量不稳定的问题。
以上内容是结合具体的优选实施方式对本发明所做的进一步详细说明,不能认定本发明的具体实施方式仅限于此,对于本发明所属技术领域的普通技术人员来说,在不脱离本发明的前提下,还可以做出若干简单的推演或替换,都应当视为属于本发明由所提交的权利要求书确定专利保护范围。
Claims (3)
1.一种改善喷涂粒子沉积环境的装置,其特征在于,在喷枪(1)的喷管(3)与基体(14)之间设置有隔板(8),所述隔板(8)垂直于喷管(3)轴线;所述隔板(8)上设置有贯穿的控制孔(9);所述控制孔(9)的几何中心位于喷管(3)的轴线上;所述控制孔(9)的剖面为喇叭状,喇叭口一端与基体(14)相邻,控制孔(9)只允许高速粒子及其周围很少的高温气体通过;
所述隔板(8)通过刚性连接杆(5)与喷枪(1)相连接;所述刚性连接杆(5)设置有杆长调节机构(6);所述隔板(8)内设置有冷却孔道(15);所述隔板(8)内设置有保护气孔道(16);保护气孔道(16)的入口位于隔板(8)的顶部和底部,出口位于隔板(8)中心区域,并以控制孔(9)为中心圆形排列。
2.根据权利要求1所述的一种改善喷涂粒子沉积环境的装置,其特征在于,所述冷却孔道(15)的入口位于隔板(8)底部,出口位于隔板(8)顶部。
3.使用如权利要求1或2所述装置的一种改善喷涂粒子沉积环境的方法,其特征在于,通过喷枪喷管将粒子沿控制孔喷出,使粒子喷涂在基体上。
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Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04346649A (ja) * | 1991-05-24 | 1992-12-02 | Matsushita Electric Ind Co Ltd | プラズマ溶射方法及びプラズマ溶射装置 |
JP2004307934A (ja) * | 2003-04-07 | 2004-11-04 | Crystal System:Kk | ガスデポジション装置およびガスデポジション方法 |
JP2005002461A (ja) * | 2003-06-16 | 2005-01-06 | Fujitsu Ltd | 成膜装置 |
JP2005238156A (ja) * | 2004-02-27 | 2005-09-08 | Toto Ltd | 複合構造物形成装置 |
JP2007246937A (ja) * | 2006-03-13 | 2007-09-27 | Fujitsu Ltd | 成膜装置及び電子部品の製造方法 |
WO2009011342A1 (ja) * | 2007-07-13 | 2009-01-22 | Kagoshima University | スプレーガンとその制御システム |
JP2011122182A (ja) * | 2009-12-08 | 2011-06-23 | Fuchita Nano Giken:Kk | ジルコニア膜の成膜方法 |
CN102400084A (zh) * | 2011-10-19 | 2012-04-04 | 北京科技大学 | 一种致密钨涂层的制备方法 |
CN108004415A (zh) * | 2017-12-08 | 2018-05-08 | 昆明冶金研究院 | 一种电子束熔炼炉壁易清理金属涂层及其喷涂方法与装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080268164A1 (en) * | 2007-04-26 | 2008-10-30 | Air Products And Chemicals, Inc. | Apparatuses and Methods for Cryogenic Cooling in Thermal Surface Treatment Processes |
US9168606B2 (en) * | 2012-05-15 | 2015-10-27 | General Electric Company | Electrospark deposition process and system for repair of gas turbine |
-
2022
- 2022-05-07 CN CN202210491491.9A patent/CN114921745B/zh active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04346649A (ja) * | 1991-05-24 | 1992-12-02 | Matsushita Electric Ind Co Ltd | プラズマ溶射方法及びプラズマ溶射装置 |
JP2004307934A (ja) * | 2003-04-07 | 2004-11-04 | Crystal System:Kk | ガスデポジション装置およびガスデポジション方法 |
JP2005002461A (ja) * | 2003-06-16 | 2005-01-06 | Fujitsu Ltd | 成膜装置 |
JP2005238156A (ja) * | 2004-02-27 | 2005-09-08 | Toto Ltd | 複合構造物形成装置 |
JP2007246937A (ja) * | 2006-03-13 | 2007-09-27 | Fujitsu Ltd | 成膜装置及び電子部品の製造方法 |
WO2009011342A1 (ja) * | 2007-07-13 | 2009-01-22 | Kagoshima University | スプレーガンとその制御システム |
JP2011122182A (ja) * | 2009-12-08 | 2011-06-23 | Fuchita Nano Giken:Kk | ジルコニア膜の成膜方法 |
CN102400084A (zh) * | 2011-10-19 | 2012-04-04 | 北京科技大学 | 一种致密钨涂层的制备方法 |
CN108004415A (zh) * | 2017-12-08 | 2018-05-08 | 昆明冶金研究院 | 一种电子束熔炼炉壁易清理金属涂层及其喷涂方法与装置 |
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