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WO2014173799A1 - Procédé et buse de projection pour le nettoyage de surfaces - Google Patents

Procédé et buse de projection pour le nettoyage de surfaces Download PDF

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Publication number
WO2014173799A1
WO2014173799A1 PCT/EP2014/057871 EP2014057871W WO2014173799A1 WO 2014173799 A1 WO2014173799 A1 WO 2014173799A1 EP 2014057871 W EP2014057871 W EP 2014057871W WO 2014173799 A1 WO2014173799 A1 WO 2014173799A1
Authority
WO
WIPO (PCT)
Prior art keywords
nozzle
main channel
blasting
jet
compressed air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2014/057871
Other languages
German (de)
English (en)
Inventor
Markus Dörig
Stefan Schaub
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of WO2014173799A1 publication Critical patent/WO2014173799A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/003—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods using material which dissolves or changes phase after the treatment, e.g. ice, CO2
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/32—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks
    • B24C3/322—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks for electrical components

Definitions

  • the invention relates to a method for cleaning surfaces, in particular surfaces of electronic components, according to the Merkmaien of patent claim 1 and a jet nozzle for use in devices for cleaning surfaces, in particular surfaces of electronic components, according to the features of claim 4.
  • the blasting process is usually carried out with jet granules and normal compressed air.
  • the jet granules are mixed with the compressed air and fired at high speed onto the component to be irradiated, that is to be cleaned.
  • the plastic surface of e.g. Duroplastmaschine creates a static charge of about 1000V to 20000V. This can not be prevented even with admixed antistatic but only reduced to about 00V to 1000V. Since the maximum limit for electronic components is zero volts, the static charge must be prevented before it occurs.
  • a method for separating dust particles from a granulate in which an air flow is passed through the granules, which entrains the dust particles, wherein the dust particles containing granules is introduced into a container. At least part of the air stream forming air is ionized. The ionization is carried out in such a way that the air flow is passed through a per se known, but not described, ionizing device.
  • the device comprises an air duct through which cleaning air is blown transversely to the feed of the film to be cleaned on the surface to be cleaned.
  • the air is ionized in the cleaning area, discharging electrostatic charges on the surface of the film and blowing it away.
  • a surface cleaning device for dedusting of solid objects comprising a built-in Blas Kunststoffdüse.
  • This blown air nozzle is in operative connection with an ionization device.
  • dust particles are electrostatically charged and shot by means of the blower nozzle on the surface to be cleaned, where they neutralize the electrostatically adhering dust particles.
  • the object of the invention is to provide an improved method for preventing static charge of surfaces to be cleaned. Another task is to specify a corresponding jet nozzle.
  • the inventive method for cleaning surfaces of electronic components is characterized in that blasting material is mixed with compressed air and fed by means of a nozzle of the surface to be cleaned, wherein the rice Cleaning jet is mixed with ionized air.
  • the blasting material is, for example, glass beads, natural granules or other agents which a person skilled in the art uses for cleaning surfaces.
  • the cleaning jet is mixed with ionized air at the exit from the nozzle.
  • the cleaning jet is mixed in a region after leaving the nozzle and before impinging on the surface to be cleaned with ionized air.
  • the jet nozzle according to the invention for use in devices for cleaning surfaces of electronic components consists of a nozzle body with a main channel, which comprises an axial inlet for a mixture of blasting material and compressed air and an axial outlet. Furthermore, the jet nozzle has one or more secondary channels for the promotion and introduction of ionized air in the mixture of blasting and compressed air.
  • the secondary channels Finekana- I au stresöff now gene, which are arranged in a ring around the main channel.
  • the axes of the Maukanalausirittsö Maschinenen run at an acute angle or at right angles to the axis of the main channel.
  • the auxiliary channels assigned to the secondary duct outlet openings are expediently designed such that the ionized air guided in these secondary ducts is supplied at a predetermined angle, in particular between 10 ° and 90 °, to the mixture of blasting material and compressed air.
  • a rotationally symmetrical arrangement of the side channel outlet openings around the main channel proves to be suitable as a result. net, since in such an arrangement can achieve optimal mixing of the mixture of blasting and compressed air with the ionized air.
  • annular secondary channel outlet opening is present around the main channel, wherein the annular secondary channel outlet opening is designed such that the outflowing ionized air is supplied to the mixture of blasting material and compressed air at an acute angle or right angle.
  • FIG. 1 is a schematic representation of a jet nozzle in a first embodiment in plan view
  • FIG. 2 is a schematic representation of a jet nozzle in a second embodiment in plan view
  • FIG. 3 is a schematic Thomasdarsteliung by a jet nozzle according to the invention in a first variant
  • FIG. 4 is a schematic sectional view through a blasting nozzle according to the invention in a second variant
  • Fig. 1 shows a schematic representation of a jet nozzle in plan view.
  • the jet nozzle 1 by way of example four auxiliary channels 4, which are arranged symmetrically about the outlet opening 6 of the main channel 3.
  • the nozzle body 2 has, in addition to the main channel outlet opening 6 of the main channel 3, the opening channel 5 of the exemplary four secondary channels 4.
  • the axis H of the main channel 3 points out of the plane of the drawing.
  • the axes N of the secondary channels 4 are indicated such that they intersect the axis H of the main channel 3.
  • the intersection S of the axis H of the main channel 3 and the axes N of the secondary channels 4 is outside the plane of the drawing.
  • Fig. 2 shows a further schematic representation of a jet nozzle in plan view.
  • the jet nozzle 1 has an annular secondary channel outlet opening 5, which is arranged around the main channel 5.
  • the annular secondary channel 4 is designed concentrically to the main channel 5 in the nozzle body 2.
  • the axis H of the main channel 3 is perpendicular to the plane of the drawing and the axis N of the annular secondary channel is oriented such that the two axes H and N intersect outside the plane of the drawing.
  • the annular sub-channel is designed such that the flow direction of the outflowing ionized air in the direction of the axis H of the main channel 3 is aligned.
  • FIG. 3 shows a schematic sectional illustration through a blasting nozzle according to the invention in a first variant, wherein this sectional illustration shown covers both the exemplary embodiment with several secondary channels and with an annular secondary channel.
  • FIG. 3 thus shows a sectional illustration of FIGS. 1 and 2 along the section line A.
  • the illustration shows a jet nozzle 1 with a nozzle body 2 in which a main channel 3 and two secondary channels 4 arranged symmetrically to the main channel 3.
  • the inlet of the main channel 3 and the inlets of the secondary channels 4 are not further illustrated.
  • the reservoir for the jet granules and the compressed air and the device for the ionization of air, expedient of compressed air not shown.
  • the latter device is state of the art and not the subject of this invention.
  • the connection of the main channel 3 and the Subchannels 4 to appropriate containers for storage and supply of the corresponding media is also prior art and not the subject of this invention.
  • the axes N of the secondary channels 4 and the axis H of the main channel 3 intersect outside the nozzle body 2 at a point S.
  • the angle a, under which the two axes N and H intersect, is less than 90 °.
  • the angle ⁇ is between 10 ° and 50 °.
  • the point of intersection S of the two axes N and H is here seen in the flow direction behind the outlet opening 6 of the main channel 4 and in front of the surface to be cleaned (not shown).
  • FIGS. 4a and 4b show a schematic sectional view through a blasting nozzle according to the invention in a second variant, wherein the latter shown
  • the same reference numerals mean the same objects.
  • the axes N of the secondary channels 4 and the annular secondary channel and the axis H of the main channel 3 are arranged to each other such that the angle ⁇ between the two axes N and H is 90 °.
  • the respective axes N and H are arranged such that the angle ⁇ is between 10 ° and 50 °.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)

Abstract

L'invention concerne un procédé de nettoyage de surfaces de composants électroniques. Selon l'invention, un abrasif est mélangé à de l'air comprimé et amené à l'aide d'une buse (1) jusqu'à la surface à nettoyer, le jet de nettoyage étant mélangé à de l'air ionisé. L'invention concerne en outre une buse de projection (1), destinée à être utilisée dans des dispositifs de nettoyage de surface de composants électroniques, qui possède un corps de buse (2) percé d'un conduit principal (3) qui comporte une entrée axiale pour un mélange d'abrasif et d'air comprimé, ainsi qu'une sortie axiale (6). Selon l'invention, la buse de projection (1) comprend un ou plusieurs conduits auxiliaires (4) servant à transporter et introduire de l'air ionisé dans le mélange d'abrasif et d'air comprimé.
PCT/EP2014/057871 2013-04-23 2014-04-17 Procédé et buse de projection pour le nettoyage de surfaces Ceased WO2014173799A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201310207354 DE102013207354A1 (de) 2013-04-23 2013-04-23 Verfahren und Strahldüse zum Reinigen von Oberflächen
DE102013207354.2 2013-04-23

Publications (1)

Publication Number Publication Date
WO2014173799A1 true WO2014173799A1 (fr) 2014-10-30

Family

ID=50513280

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/057871 Ceased WO2014173799A1 (fr) 2013-04-23 2014-04-17 Procédé et buse de projection pour le nettoyage de surfaces

Country Status (2)

Country Link
DE (1) DE102013207354A1 (fr)
WO (1) WO2014173799A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107537335A (zh) * 2017-10-10 2018-01-05 中煤科工清洁能源股份有限公司 一种喷嘴、混合器及供料系统

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3076760B1 (fr) 2018-01-15 2020-02-07 Chanel Parfums Beaute Procede de post-traitement d'une piece obtenue par fabrication additive a partir d'une poudre d'un materiau plastique
DE102018000814A1 (de) * 2018-02-01 2019-08-01 Harald Eckstein Vorrichtung zum Behandeln und Verfahren zur Verwendung
CN110125087B (zh) * 2019-05-24 2024-01-30 明度智云(浙江)科技有限公司 一种涡壳放置基座和涡壳清洗装置
CN113414186A (zh) * 2021-06-23 2021-09-21 上海弗列加滤清器有限公司 一种清洁系统和滤清器清洁方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3603041A1 (de) 1985-04-11 1986-10-30 Zöll, Dieter, Selzach Flaechenreinigungsgeraet
DE3711777A1 (de) 1987-04-08 1988-10-27 Claus G Dipl Ing Wandres Verfahren und vorrichtung zum entstauben von folien o. dgl.
US5725154A (en) * 1995-08-18 1998-03-10 Jackson; David P. Dense fluid spray cleaning method and apparatus
WO2004048006A1 (fr) 2002-11-28 2004-06-10 Mbengineering Gmbh & Co. Kg Procede et dispositif pour separer des particules de poussiere d'un granulat
US20040194803A1 (en) 2003-04-04 2004-10-07 Asm Technology Singapore Pte Ltd Cleaning of an electronic device
US20050272347A1 (en) * 2004-05-14 2005-12-08 British Columbia Hydro And Power Authority Dry ice blasting cleaning apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4665462A (en) * 1985-06-17 1987-05-12 The Simco Company, Inc. Ionizing gas gun for balanced static elimination
US5388769A (en) * 1993-09-20 1995-02-14 Illinois Tool Works Inc. Self-cleaning ionizing air gun

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3603041A1 (de) 1985-04-11 1986-10-30 Zöll, Dieter, Selzach Flaechenreinigungsgeraet
DE3711777A1 (de) 1987-04-08 1988-10-27 Claus G Dipl Ing Wandres Verfahren und vorrichtung zum entstauben von folien o. dgl.
US5725154A (en) * 1995-08-18 1998-03-10 Jackson; David P. Dense fluid spray cleaning method and apparatus
WO2004048006A1 (fr) 2002-11-28 2004-06-10 Mbengineering Gmbh & Co. Kg Procede et dispositif pour separer des particules de poussiere d'un granulat
US20040194803A1 (en) 2003-04-04 2004-10-07 Asm Technology Singapore Pte Ltd Cleaning of an electronic device
US20050272347A1 (en) * 2004-05-14 2005-12-08 British Columbia Hydro And Power Authority Dry ice blasting cleaning apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107537335A (zh) * 2017-10-10 2018-01-05 中煤科工清洁能源股份有限公司 一种喷嘴、混合器及供料系统
CN107537335B (zh) * 2017-10-10 2024-02-06 中煤科工清洁能源股份有限公司 一种喷嘴、混合器及供料系统

Also Published As

Publication number Publication date
DE102013207354A1 (de) 2014-10-23

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