CN105839101A - Laminated wide-band powder feeding nozzle with bilateral rectifying gases - Google Patents

Laminated wide-band powder feeding nozzle with bilateral rectifying gases Download PDF

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Publication number
CN105839101A
CN105839101A CN201610322783.4A CN201610322783A CN105839101A CN 105839101 A CN105839101 A CN 105839101A CN 201610322783 A CN201610322783 A CN 201610322783A CN 105839101 A CN105839101 A CN 105839101A
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China
Prior art keywords
hole
rectification
lamination
powder
outlet
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Granted
Application number
CN201610322783.4A
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Chinese (zh)
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CN105839101B (en
Inventor
胡晓冬
姚建华
叶钟
陈智君
王云生
骆芳
科瓦连柯·弗拉季米尔
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Zhejiang University of Technology ZJUT
Hangzhou Steam Turbine Power Group Co Ltd
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Zhejiang University of Technology ZJUT
Hangzhou Steam Turbine Co Ltd
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Priority to CN201610322783.4A priority Critical patent/CN105839101B/en
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    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C24/00Coating starting from inorganic powder
    • C23C24/08Coating starting from inorganic powder by application of heat or pressure and heat
    • C23C24/10Coating 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)

Abstract

A laminated wide-band powder feeding nozzle with bilateral rectifying gases is disclosed. An inlet segment of a top plate extends upwards and slantwise, and is provided with an upper rectifying gas through hole, a powder through hole and a lower rectifying gas through hole. A first groove and an upper lamination below the first groove define an upper rectifying gas flow channel with one end communicating with the upper rectifying gas through hole and the other end extending to an outlet end of a nozzle body to form an upper rectifying gas outlet. The upper lamination and a lower lamination, together with a through groove therebetween, define a powder flow channel with one end communicating with the powder through hole and the other end extending to the outlet end of the nozzle body to form a powder outlet. A second groove and the lower lamination above the second groove define a lower rectifying gas flow channel with one end communicating with the lower rectifying gas through hole and the other end extending to the outlet end of the nozzle body to form a lower rectifying gas outlet. In addition, the upper rectifying gas outlet and the lower rectifying gas outlet are located above and below the powder outlet, respectively.

Description

A kind of stacked broadband powder-feeding nozzle of band double sided rectification gas
Technical field
The present invention relates to a kind of nozzle, particularly relate to the stacked broadband of a kind of band double sided rectification gas Powder-feeding nozzle.
Background technology
Dissipate to reduce the powder of powder-feeding nozzle, improve powder using efficiency, often export in powder feeding Peripheral additionally interpolation rectification gas, it is possible to output powder is done up collimation, reduces the work that powder dissipates With, it can in addition contain to a certain degree preventing molten bath from aoxidizing.
Rectification device of air is additionally added outside nozzle, because not being integrated design with nozzle, powder Bundle collimating effect is poor;If using complicated nozzle arrangements design, there is processing difficulties, cost The shortcomings such as height.Meanwhile, the powder beam width of common wide powder-feeding nozzle output typically can not change, When in the face of different laser spot size size, need the nozzle of standby multiple corresponding model, this Financial cost can be increased undoubtedly, also can affect the motility of use simultaneously, be largely affected by The quality of laser melting coating and efficiency, limit the popularization and application of laser wide-band cladding technology.
Summary of the invention
For overcoming the problems referred to above, the present invention provides the stacked broadband of a kind of band double sided rectification gas to send Powder nozzle.
The technical scheme is that
A kind of stacked broadband powder-feeding nozzle of band double sided rectification gas, including nozzle body, described Nozzle body include folding the most successively the top board setting and interfixing, upper lamination, middle lamination, Lower lamination and base plate, top board entrance is inclined upwardly extension, and base plate entrance and top board entrance Section matches, and it is logical that top board entrance is provided with rectification vent hole, powder through hole and lower rectification gas Hole, and upper rectification vent hole, powder through hole and lower rectification vent hole be all obliquely installed;
The bottom surface of described top board has the first groove, and described first groove encloses with the upper lamination of lower section Rectification flow channel in synthesis, one end of described upper rectification flow channel connects with upper rectification vent hole, The other end extends to the nozzle body port of export and constitutes upper rectification gas outlet;
Have groove, upper lamination and lower lamination on described middle lamination to enclose with middle described groove Becoming powder flow channel, one end of described powder flow channel connects with powder through hole, and the other end extends to spray The mouth body port of export constitutes dust outlet;
The end face of described base plate has the second groove, and described second groove encloses with the lower lamination of top The lower rectification flow channel of synthesis, one end of described lower rectification flow channel connects with lower rectification vent hole, The other end extends to the nozzle body port of export and constitutes lower rectification gas outlet;
And the outlet of upper rectification gas, the outlet of lower rectification gas lay respectively at dust outlet top and under Side.
Further, upper rectification gas outlet, the outlet of lower rectification gas are just laying respectively at dust outlet Top and underface.
Further, described upper rectification vent hole, powder through hole and lower rectification vent hole are at top board Arrange by in-line on entrance end face.
Further, described upper lamination be provided with the first through hole connected with powder through hole and with It is equipped with and institute on the second through hole that lower rectification vent hole connects, described middle lamination and lower lamination State third through-hole and fourth hole that the second through hole connects;Described powder flow channel leads to by first Hole connects with powder through hole;Described lower rectification flow channel by the second through hole of being directed at up and down, the Three through holes connect with lower rectification vent hole with fourth hole.
Further, top board, upper lamination, middle lamination, lower lamination and base plate are fastened by screw.
Further, it is provided with cooling water flow conduits in described base plate.
Further, the both sides of described base plate are provided with the position, hole for fixing with fixture.
The invention has the beneficial effects as follows:
(1) powder at dust outlet is acted on by rectification gas, dissipates reduction, powder profit It is effectively improved by rate;Meanwhile, rectification gas can form atmosphere protection around molten bath, improves Cladding quality.
(2) upper lamination, middle lamination and lower lamination all use thin slice so that present configuration Simply, compact, easy to assembly;And sheet thickness is the least so that upper rectification gas outlet and under whole Gas outlet is the most close with the distance of dust outlet, and upper rectification gas and lower rectification gas can play powder Rectification collimating effect.
(3) upper lamination, middle lamination and lower lamination function simultaneously as sealing gasket, simplify overall knot Structure.
(4) by changing the middle lamination of the groove with different size (width), the most adjustable The size of joint powder flow channel, can be satisfied with the demand of different size laser facula, and change conveniently, There is convenience, economic and practical effect.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
Fig. 2 is the structural blast figure of the present invention.
Fig. 3 is top board top view.
Fig. 4 is top board side view.
Fig. 5 is top board left view.
Fig. 6 is upper lamination top view.
Fig. 7 is middle lamination top view.
Fig. 8 is lower lamination top view.
Fig. 9 is base plate front view.
Figure 10 is base plate top view.
Figure 11 is base plate right view.
Detailed description of the invention
As it is shown in figure 1, left end is the port of export of nozzle body, right-hand member is the entrance of nozzle body End, and definition nozzle body is nozzle body outlet section near a section of the port of export, nozzle body One section of close arrival end is nozzle body entrance, and in like manner, top board 1 is near the one of the port of export Section is top board outlet section, and top board 1 is top board entrance 11 near a section of arrival end, base plate 5 Being base plate outlet section near a section of the port of export, base plate 5 enters for top board near a section of arrival end Mouth section 51.
Referring to the drawings, the stacked broadband powder-feeding nozzle of a kind of band double sided rectification gas, including nozzle Body, described nozzle body include folding the most successively set and interfix top board 1, on Lamination 2, middle lamination 3, lower lamination 4 and base plate 5, top board entrance 11 is inclined upwardly extension, And base plate entrance 51 matches with top board entrance 11, i.e. base plate entrance 51 and top board The contact surface of entrance 11 closely fits, and plays sealing function so that top board entrance 11 It is provided with rectification vent hole 112, powder through hole 111 and lower rectification vent hole 113, and on Rectification vent hole 112, powder through hole 111 and lower rectification vent hole 113 are all obliquely installed, with Increase protection vent hole, powder through hole and the discharge area of lower protection vent hole.
The bottom surface of described top board 1 has the first groove 12, described first groove 12 and lower section Upper lamination 2 encloses rectification flow channel, one end of described upper rectification flow channel and upper rectification gas Through hole 112 connects, and the other end extends to the nozzle body port of export and constitutes upper rectification gas outlet;
Groove 31, upper lamination 2 and lower lamination 4 and middle institute is had on described middle lamination 3 Stating groove 31 and enclose powder flow channel, one end of described powder flow channel is with powder through hole 111 even Logical, the other end extends to nozzle body 1 port of export and constitutes dust outlet;
The end face of described base plate 5 has the second groove 54, described second groove 54 and top Lower lamination 4 encloses lower rectification flow channel, one end of described lower rectification flow channel and lower rectification gas Through hole 113 connects, and the other end extends to the nozzle body port of export and constitutes lower rectification gas outlet;
And the outlet of upper rectification gas, the outlet of lower rectification gas lay respectively at dust outlet top and under Side.
Further, upper rectification gas outlet, the outlet of lower rectification gas lay respectively at just going up of dust outlet Side and underface.
Further, described upper rectification vent hole 112, powder through hole 111 and lower rectification vent hole 113 are arranged by in-line on top board entrance 11 end face.
Further, described upper lamination 2 is provided with the first through hole connected with powder through hole 111 21 and the second through hole 22 of connecting with lower rectification vent hole 113, described middle lamination 3 and under The third through-hole 32 and fourth hole connected with described second through hole 22 it is equipped with on lamination 4 41;Described powder flow channel is connected with powder through hole 111 by the first through hole 21;Under described whole Gas runner is by the second through hole 22, third through-hole 32 and the fourth hole 41 that are directed at up and down Connect with lower rectification vent hole 113.Wherein, the outlet of described upper rectification vent hole 112 is direct It is passed through rectification flow channel.
Further, top board 1, upper lamination 2, middle lamination 3, lower lamination 4 and base plate 5 pass through Screw 6 fastens.
Further, being provided with cooling water flow conduits 53 in described base plate 5, nozzle body is near laser District, the external circulation of cooling water flow conduits 43, to cool down nozzle body.
Further, the both sides of described base plate 5 are provided with the position, hole 52 for fixing with fixture, Use, so arranging fixing hole position 52 on fixture owing to nozzle body needs to be fixed on.
The action principle of the present invention is:
At upper rectification vent hole 112, powder through hole 111 and the entrance of lower rectification vent hole 113 Place each leads into rectification gas, powder and lower rectification gas, upper rectification gas, powder and lower rectification gas Respectively through upper rectification flow channel, powder flow channel and lower rectification flow channel to the port of export of nozzle body Conveying so that powder is acted on by upper and lower, rectification gas at dust outlet, dissipates reduction, Powder using efficiency is effectively improved;Meanwhile, rectification gas can form atmosphere protection around molten bath, Improve cladding quality.
And owing to upper lamination 2, middle lamination 3, lower lamination 4 all use thin slice so that nozzle Body construction is simple, compact, easy to assembly;And sheet thickness is the least so that upper rectification gas goes out Mouth and the outlet of lower rectification gas are the most close with the distance of dust outlet, and upper rectification gas and lower rectification gas are also Powder rectification collimating effect can be played.
It addition, upper lamination 2, middle lamination 3, lower lamination 4 function simultaneously as sealing gasket, simplify Structure.
By changing the middle lamination 3 of the groove with different size (width), thus it is possible to vary powder The size in later and decadent stage of a school of thought road, to adapt to the demand of different size laser facula, the size of powder flow channel is not Only scalable, and have only to lamination 3 in replacing, there is convenience, economic and practical spy Point.
Content described in this specification embodiment is only the row of the way of realization to inventive concept Lifting, protection scope of the present invention is not construed as being only limitted to the concrete shape that embodiment is stated Formula, protection scope of the present invention also includes that those skilled in the art are caned according to present inventive concept The equivalent technologies means expected.

Claims (7)

1. the stacked broadband powder-feeding nozzle of a band double sided rectification gas, it is characterised in that: Including nozzle body, described nozzle body includes folding the top setting and interfixing the most successively Plate, upper lamination, middle lamination, lower lamination and base plate, top board entrance is inclined upwardly extension, and Base plate entrance matches with top board entrance, top board entrance be provided with rectification vent hole, Powder through hole and lower rectification vent hole, and upper rectification vent hole, powder through hole and lower rectification gas are logical Kong Jun is obliquely installed;
The bottom surface of described top board has the first groove, and described first groove encloses with the upper lamination of lower section Rectification flow channel in synthesis, one end of described upper rectification flow channel connects with upper rectification vent hole, The other end extends to the nozzle body port of export and constitutes upper rectification gas outlet;
Have groove, upper lamination and lower lamination on described middle lamination to enclose with middle described groove Becoming powder flow channel, one end of described powder flow channel connects with powder through hole, and the other end extends to spray The mouth body port of export constitutes dust outlet;
The end face of described base plate has the second groove, and described second groove encloses with the lower lamination of top The lower rectification flow channel of synthesis, one end of described lower rectification flow channel connects with lower rectification vent hole, The other end extends to the nozzle body port of export and constitutes lower rectification gas outlet;
And the outlet of upper rectification gas, the outlet of lower rectification gas lay respectively at dust outlet top and under Side.
The stacked broadband powder feeding of a kind of band double sided rectification gas the most as claimed in claim 1 Nozzle, it is characterised in that: upper rectification gas outlet, the outlet of lower rectification gas lay respectively at dust outlet Surface and underface.
The stacked broadband powder feeding of a kind of band double sided rectification gas the most as claimed in claim 2 Nozzle, it is characterised in that: described upper rectification vent hole, powder through hole and lower rectification vent hole exist Arrange by in-line on top board entrance end face.
The stacked broadband powder feeding spray of a kind of band double sided rectification gas the most as claimed in claim 3 Mouth, it is characterised in that: described upper lamination be provided with the first through hole connected with powder through hole and Be equipped with on the second through hole connected with lower rectification vent hole, described middle lamination and lower lamination with Third through-hole that described second through hole connects and fourth hole;Described powder flow channel passes through first Through hole connects with powder through hole;Described lower rectification flow channel by the second through hole of being directed at up and down, Third through-hole connects with lower rectification vent hole with fourth hole.
The stacked broadband powder feeding spray of a kind of band double sided rectification gas the most as claimed in claim 4 Mouth, it is characterised in that: top board, upper lamination, middle lamination, lower lamination and base plate are tight by screw Gu.
The stacked broadband powder feeding spray of a kind of band double sided rectification gas the most as claimed in claim 5 Mouth, it is characterised in that: it is provided with cooling water flow conduits in described base plate.
The stacked broadband powder feeding spray of a kind of band double sided rectification gas the most as claimed in claim 6 Mouth, it is characterised in that: the both sides of described base plate are provided with the position, hole for fixing with fixture.
CN201610322783.4A 2016-05-16 2016-05-16 A kind of stacked broadband powder-feeding nozzle with double sided rectification gas Active CN105839101B (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115287650A (en) * 2022-08-09 2022-11-04 南京辉锐光电科技有限公司 Paraxial broadband powder feeding cladding nozzle and laser cladding equipment

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5321228A (en) * 1991-06-24 1994-06-14 Andreas Krause Nozzle for the surface treatment of metal workpieces
CN2838760Y (en) * 2005-09-23 2006-11-22 北京工业大学 Side powder supplying nozzle for high-power laser wideband coating
CN201823642U (en) * 2010-08-17 2011-05-11 华东理工大学 Laser cladding coaxial powder delivery nozzle comprising guide protective air flow
CN103205748A (en) * 2013-04-22 2013-07-17 杭州东通激光科技有限公司 Wideband nozzle capable of uniformly feeding powder in laser processing
CN204198853U (en) * 2014-11-11 2015-03-11 晋中开发区圣邦液压器件有限公司 Combined laser cladding powder-feeding head
CN205152336U (en) * 2015-11-19 2016-04-13 浙江巨化装备制造有限公司 Whitewashed nozzle is sent to laser cladding broadband side direction
CN205741215U (en) * 2016-05-16 2016-11-30 浙江工业大学 A kind of stacked broadband powder-feeding nozzle of band double sided rectification gas

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5321228A (en) * 1991-06-24 1994-06-14 Andreas Krause Nozzle for the surface treatment of metal workpieces
CN2838760Y (en) * 2005-09-23 2006-11-22 北京工业大学 Side powder supplying nozzle for high-power laser wideband coating
CN201823642U (en) * 2010-08-17 2011-05-11 华东理工大学 Laser cladding coaxial powder delivery nozzle comprising guide protective air flow
CN103205748A (en) * 2013-04-22 2013-07-17 杭州东通激光科技有限公司 Wideband nozzle capable of uniformly feeding powder in laser processing
CN204198853U (en) * 2014-11-11 2015-03-11 晋中开发区圣邦液压器件有限公司 Combined laser cladding powder-feeding head
CN205152336U (en) * 2015-11-19 2016-04-13 浙江巨化装备制造有限公司 Whitewashed nozzle is sent to laser cladding broadband side direction
CN205741215U (en) * 2016-05-16 2016-11-30 浙江工业大学 A kind of stacked broadband powder-feeding nozzle of band double sided rectification gas

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115287650A (en) * 2022-08-09 2022-11-04 南京辉锐光电科技有限公司 Paraxial broadband powder feeding cladding nozzle and laser cladding equipment

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Address after: 310014 No. 18 Chao Wang Road, Xiacheng District, Zhejiang, Hangzhou

Patentee after: JIANG University OF TECHNOLOGY

Patentee after: Hangzhou Turbine Power Group Co.,Ltd.

Address before: 310014 No. 18 Chao Wang Road, Xiacheng District, Zhejiang, Hangzhou

Patentee before: JIANG University OF TECHNOLOGY

Patentee before: HANGZHOU STEAM TURBINE Co.,Ltd.

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