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FI3571011T3 - MAGNETICALLY ASSISTED TRANSPORT OF MAGNETIZABLE ABRASIVE PARTICLES AND RELATED METHODS, APPARATUS AND SYSTEMS - Google Patents

MAGNETICALLY ASSISTED TRANSPORT OF MAGNETIZABLE ABRASIVE PARTICLES AND RELATED METHODS, APPARATUS AND SYSTEMS Download PDF

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Publication number
FI3571011T3
FI3571011T3 FIEP18702806.3T FI18702806T FI3571011T3 FI 3571011 T3 FI3571011 T3 FI 3571011T3 FI 18702806 T FI18702806 T FI 18702806T FI 3571011 T3 FI3571011 T3 FI 3571011T3
Authority
FI
Finland
Prior art keywords
abrasive particles
magnetizable abrasive
cavities
dispensing
substrate
Prior art date
Application number
FIEP18702806.3T
Other languages
Finnish (fi)
Inventor
Aaron K Nienaber
Joseph B Eckel
Ronald D Jesme
Samad Javid
Original Assignee
3M Innovative Properties Company
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
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Publication of FI3571011T3 publication Critical patent/FI3571011T3/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • B24D11/001—Manufacture of flexible abrasive materials
    • B24D11/005—Making abrasive webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • B24D11/001—Manufacture of flexible abrasive materials

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Claims (12)

1 EP3 571 011 MAGNETISOITUVIEN HIOMAHIUKKASTEN MAGNEETTISESTI AVUSTETTU SIIRTO JA SIIHEN LIITTYVIÄ MENETELMIÄ, LAITTEISTOJA JA JÄRJESTELMIÄ PATENTTIVAATIMUKSET1 EP3 571 011 MAGNETICALLY ASSISTED TRANSPORT OF MAGNETIZABLE ABRASIVE PARTICLES AND RELATED METHODS, APPARATUS AND SYSTEMS PATENT CLAIMS 1. Menetelmä päällystetyn hiomatuotteen valmistamiseksi, joka menetelmä käsittää seuraavat: aikaansaadaan annosteltavia magnetisoituvia hiomahiukkasia (202) ja jakelutyökalu (204), jolloin jakelutyökalu (204) on sovitettu vastaanottamaan magnetisoituvat hiomahiukkaset (202) sisäänsä, ja jolloin jakelutyökalu (204) käsittää useita onteloita, jotka on sovitettu antamaan magnetisoituville hiomahiukkasille (202) ennalta määritetty suuntaus ja/tai kohdistus; annostellaan magnetisoituvat hiomahiukkaset jakelutyökalun onteloihin ja kohdistetaan voima F2 magnetisoituvien hiomahiukkasten pidättämiseksi onteloiden sisälle; käännetään jakelutyökalu ylösalaisin siten, että voima F2 pidättää ainakin osan magnetisoituvista hiomahiukkasista painovoimaa vastaan; sijoitetaan (i) alusta (216) jakelutyökalun (204) viereen ja siitä raon (G) päähän, jolloin rako (G) on ainakin niin suuri kuin magnetisoituvien hiomahiukkasten (202) enimmäismitta; ja (ii) magneetti (250) alustan alapuolelle; magneettia (250) käyttäen kohdistetaan magneettikenttä ainakin alustaan (216) ja alustan (216) ja jakelutyökalun (204) välisen raon (G) osaan ensimmäisen magneettisen voiman F1 kohdistamiseksi magnetisoituviin hiomahiukkasiin, jotta vaikutetaan magnetisoituvien hiomahiukkasten siirtoon jakelutyökalun (204) onteloista (230) alustalle (216); ja poistetaan tai muutetaan voimaa F2 ennen magnetisoituvien hiomahiukkasten (202) siirtoa useista onteloista (230) tai samanaikaisesti sen kanssa; siirretään magnetisoituvat hiomahiukkaset (202) jakelutyökalusta (204) alustan (216) ensimmäiselle pääpinnalle (220), jolloin magneettikenttä kohdistetaan magnetisoituvien hiomahiukkasten (202) siirron aikana.1. A method for manufacturing a coated abrasive product, the method comprising: providing dispensed magnetizable abrasive particles (202) and a dispensing tool (204), wherein the dispensing tool (204) is adapted to receive the magnetizable abrasive particles (202) therein, and wherein the dispensing tool (204) comprises a plurality of cavities adapted to provide the magnetizable abrasive particles (202) with a predetermined orientation and/or alignment; dispensing the magnetizable abrasive particles into the cavities of the dispensing tool and applying a force F2 to retain the magnetizable abrasive particles within the cavities; inverting the dispensing tool such that the force F2 retains at least a portion of the magnetizable abrasive particles against gravity; (i) positioning a base (216) adjacent to the dispensing tool (204) and at the end of a gap (G) therefrom, the gap (G) being at least as large as the maximum dimension of the magnetizable abrasive particles (202); and (ii) a magnet (250) below the base; using the magnet (250), applying a magnetic field to at least the base (216) and a portion of the gap (G) between the base (216) and the dispensing tool (204) to apply a first magnetic force F1 to the magnetizable abrasive particles to effect transfer of the magnetizable abrasive particles from the cavities (230) of the dispensing tool (204) to the base (216); and removing or varying the force F2 prior to or simultaneously with the transfer of the magnetizable abrasive particles (202) from the plurality of cavities (230); transferring the magnetizable abrasive particles (202) from the dispensing tool (204) to the first major surface (220) of the substrate (216), wherein a magnetic field is applied during the transfer of the magnetizable abrasive particles (202). 2 EP3 571 0112 EP3 571 011 2. Patenttivaatimuksen 1 mukainen menetelmä, jossa jakelutyökalu (204) on sovitettu aikaansaamaan ennalta määritetty kuvio magnetisoituviin hiomahiukkasiin (202).The method of claim 1, wherein the distribution tool (204) is adapted to provide a predetermined pattern to the magnetizable abrasive particles (202). 3. Jonkin patenttivaatimuksista 1-2 mukainen menetelmä, jossa jompaakumpaa alustasta (216) ja jakelutyökalusta (204) liikutetaan suhteessa toiseen alustasta (216) ja jakelutyökalusta (204), ja menetelmä on osa jatkuvaa prosessia.The method of any one of claims 1-2, wherein one of the platform (216) and the dispensing tool (204) is moved relative to the other of the platform (216) and the dispensing tool (204), and the method is part of a continuous process. 4. Jonkin patenttivaatimuksista 1-3 mukainen menetelmä, jossa jakelutyökalulla (204) on ulkoinen annostelupinta (238), jonka sisällä on onteloita (230), ja jolloin kukin onteloista (230) on muotoiltu vastaanottamaan ainakin osa magnetisoituvista hiomahiukkasista (202) sisäänsä.4. The method of any one of claims 1 to 3, wherein the dispensing tool (204) has an external dispensing surface (238) having cavities (230) therein, each of the cavities (230) being shaped to receive at least a portion of the magnetizable abrasive particles (202) therein. 5. Patenttivaatimuksen 4 mukainen menetelmä, jossa voima F2 kohdistetaan alipaineella.5. The method according to claim 4, wherein the force F2 is applied by vacuum. 6. Jonkin patenttivaatimuksista 1-5 mukainen menetelmä, joka käsittää lisäksi seuraavat: kovetetaan ainakin osittain alustalle (216) sijoitettu pohjakerroksen esiaste; sijoitetaan liimakerroksen esiaste ainakin osalle ainakin osittain kovetettua pohjakerroksen esiastetta; ja kovetaan ainakin osittain liimakerroksen esiaste.6. The method of any one of claims 1 to 5, further comprising: at least partially curing the base layer precursor disposed on the substrate (216); placing an adhesive layer precursor on at least a portion of the at least partially cured base layer precursor; and at least partially curing the adhesive layer precursor. 7. Jonkin patenttivaatimuksista 1-6 mukainen menetelmä, jossa magneettikenttä vaikuttaa magnetisoituviin hiomahiukkasiin (202) olennaisesti samansuuntaisesti kuin painovoimakenttä ja magneettikenttä ja painovoimakenttä yhdessä työntävät magnetisoituvat hiomahiukkaset (202) ulos jakelutyökalusta (204) ja vaikuttavat magnetisoituvien hiomahiukkasten (202) läpikulkuun raon (G) läpi alustan (216) ensimmäiselle pääpinnalle (220).7. The method of any one of claims 1 to 6, wherein the magnetic field acts on the magnetizable abrasive particles (202) substantially parallel to the gravitational field, and the magnetic field and gravitational field together push the magnetizable abrasive particles (202) out of the dispensing tool (204) and cause the magnetizable abrasive particles (202) to pass through the gap (G) onto the first major surface (220) of the substrate (216). 8. Jonkin patenttivaatimuksista 1-7 mukainen menetelmä, jossa rako (G) on kooltaan 0,254—25,4 mm (0,010—1,0 tuumaa) mitattuna jakelutyökalun (204) lähimmästä pisteestä alustan (216) ensimmäiseen pääpintaan (220).8. The method of any one of claims 1 to 7, wherein the gap (G) has a size of 0.254-25.4 mm (0.010-1.0 inches) measured from the closest point of the dispensing tool (204) to the first major surface (220) of the substrate (216). 3 EP3 571 0113 EP3 571 011 9. Jonkin patenttivaatimuksista 1-8 mukainen menetelmä, jossa suurimmalla osalla magnetisoituvista hiomahiukkasista (202) on tasomainen pääpinta, joka on sijoitettu ainakin 70 asteen kulmaan alustan (216) ensimmäiseen pääpintaan (220) nähden alustalle (216) siirron jälkeen. s 10. Hiomahiukkasten paikoitusjärjestelmä, joka käsittää: jakelutyökalun (204), joka on sovitettu antamaan magnetisoituville hiomahiukkasille (202) ennalta määritetty suuntaus ja/tai kohdistus, joka jakelutyökalu (204) käsittää: kannatinelementin (203), jossa on ylösalaisin käännetty annostelupinta (238) ja annostelupintaa vastapäätä oleva takapinta, jolloin kannatinelementissä (203) on siihen muodostettuja onteloita (230), jolloin ontelot (230) ulottuvat kannatinelementtiin (203) annostelupinnasta (238) takapintaa kohti; magnetisoituvia hiomahiukkasia (202), jotka on sijoitettu poistettavasti ainakin osaan onteloista (230) ja jotka pidätetään onteloiden sisälle painovoimaa vastaan voiman F2 avulla, jolloin voima F2 on sovitettu poistettavaksi tai muutettavaksi ennen magnetisoituvien hiomahiukkasten 202 siirtoa useista onteloista (230) tai samanaikaisesti sen kanssa; jakelutyökalun (204) viereen sijoitetun ja siitä raon (G) päässä olevan alustan (216), jolloin rako (G) on ainakin niin suuri kuin magnetisoituvien hiomahiukkasten (202) enimmäismitta, jolla alustalla (216) on ensimmäinen pääpinta (220), joka osoittaa jakelutyökalua (204) päin, ja toinen pääpinta (256), joka on ensimmäistä pääpintaa (220) vastapäätä; ja magneetin (250), joka on sijoitettu alustan (216) alapuolelle ja osoittaa alustan (216) toista pääpintaa (256) päin, joka magneetti (250) kohdistaa magneettikentän ensimmäisen magneettisen voiman F1 kohdistamiseksi magnetisoituviin hiomahiukkasiin vaikuttaakseen magnetisoituvien hiomahiukkasten (202) siirtoon jakelutyökalusta (204) alustalle (216) ja auttaakseen magnetisoituvien hiomahiukkasten (202) ennalta määritetyn suuntauksen ja kohdistuksen saavuttamista alustan (216) ensimmäisellä —pääpinnalla (220).The method of any one of claims 1 to 8, wherein a majority of the magnetizable abrasive particles (202) have a planar major surface positioned at an angle of at least 70 degrees with respect to the first major surface (220) of the substrate (216) after being transferred to the substrate (216). s 10. A system for positioning abrasive particles, comprising: a distribution tool (204) adapted to provide magnetizable abrasive particles (202) with a predetermined orientation and/or alignment, the distribution tool (204) comprising: a support element (203) having an inverted dispensing surface (238) and a rear surface opposite the dispensing surface, the support element (203) having cavities (230) formed therein, the cavities (230) extending into the support element (203) from the dispensing surface (238) toward the rear surface; magnetizable abrasive particles (202) removably disposed in at least a portion of the cavities (230) and retained within the cavities against gravity by a force F2, wherein the force F2 is adapted to be removed or changed prior to or simultaneously with the transfer of the magnetizable abrasive particles 202 from the plurality of cavities (230); a substrate (216) disposed adjacent to the dispensing tool (204) and spaced apart by a gap (G) therefrom, wherein the gap (G) is at least as large as the maximum dimension of the magnetizable abrasive particles (202), the substrate (216) having a first major surface (220) facing the dispensing tool (204) and a second major surface (256) facing the first major surface (220); and a magnet (250) disposed below the substrate (216) and facing the second major surface (256) of the substrate (216), the magnet (250) applying a magnetic field to apply a first magnetic force F1 to the magnetizable abrasive particles to effect transfer of the magnetizable abrasive particles (202) from the dispensing tool (204) to the substrate (216) and to assist in achieving a predetermined orientation and alignment of the magnetizable abrasive particles (202) on the first major surface (220) of the substrate (216). 4 EP3 571 0114 EP3 571 011 11. Patenttivaatimuksen 10 mukainen hiomahiukkasten paikoitusjärjestelmä, jossa kannatinelementti (203) käsittää polymeeriä ja on joustava.The abrasive particle positioning system of claim 10, wherein the support element (203) comprises a polymer and is flexible. 12. Jonkin patenttivaatimuksista 10-11 mukainen hiomahiukkasten paikoitusjärjestelmä, jossa jakelutyökalu (204) käsittää päättömän hihnan.12. An abrasive particle positioning system according to any one of claims 10-11, wherein the distribution tool (204) comprises an endless belt.
FIEP18702806.3T 2017-01-19 2018-01-16 MAGNETICALLY ASSISTED TRANSPORT OF MAGNETIZABLE ABRASIVE PARTICLES AND RELATED METHODS, APPARATUS AND SYSTEMS FI3571011T3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201762448141P 2017-01-19 2017-01-19
PCT/IB2018/050263 WO2018134732A1 (en) 2017-01-19 2018-01-16 Magnetically assisted transfer of magnetizable abrasive particles and methods, apparatuses and systems related thereto

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FI3571011T3 true FI3571011T3 (en) 2025-06-04

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US (1) US20210129292A1 (en)
EP (1) EP3571011B1 (en)
CN (1) CN110198810A (en)
FI (1) FI3571011T3 (en)
WO (1) WO2018134732A1 (en)

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EP3086904B1 (en) 2013-12-23 2021-10-27 3M Innovative Properties Company Method of making a coated abrasive article
EP3304581B1 (en) * 2015-06-02 2022-09-14 3M Innovative Properties Company Method of transferring particles to a substrate
JP6913637B2 (en) * 2015-06-19 2021-08-04 スリーエム イノベイティブ プロパティズ カンパニー Systems and methods for manufacturing polished articles
WO2017007714A1 (en) 2015-07-08 2017-01-12 3M Innovative Properties Company Systems and methods for making abrasive articles
CN107912026B (en) 2015-07-08 2020-10-02 3M创新有限公司 System and method for making abrasive articles

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CN110198810A (en) 2019-09-03
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US20210129292A1 (en) 2021-05-06
WO2018134732A1 (en) 2018-07-26

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