DE202010015210U1 - Pore former made from thermoplastic granules for the production of ceramic grinding wheels - Google Patents

Pore former made from thermoplastic granules for the production of ceramic grinding wheels Download PDF

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Publication number
DE202010015210U1
DE202010015210U1 DE202010015210U DE202010015210U DE202010015210U1 DE 202010015210 U1 DE202010015210 U1 DE 202010015210U1 DE 202010015210 U DE202010015210 U DE 202010015210U DE 202010015210 U DE202010015210 U DE 202010015210U DE 202010015210 U1 DE202010015210 U1 DE 202010015210U1
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DE
Germany
Prior art keywords
pore
production
grinding wheels
thermoplastic granules
ceramic grinding
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.)
Expired - Lifetime
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DE202010015210U
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German (de)
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to DE202010015210U priority Critical patent/DE202010015210U1/en
Publication of DE202010015210U1 publication Critical patent/DE202010015210U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
    • B24D3/04—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
    • B24D3/14—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic ceramic, i.e. vitrified bondings
    • B24D3/18—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic ceramic, i.e. vitrified bondings for porous or cellular structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/34—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
    • B24D3/342—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties incorporated in the bonding agent

Abstract

n werden zur Beeinflussung des Spanverhaltens Porenbildner eingesetzt. Der neuartige Porenbildner aus Thermoplastgranulaten ist dadurch gekennzeichnet, daß die Porenräume in ihrer Form genau definiert werden können und nur geringe Geruchsbelästigung bzw. kaum Umweltbelästigungen auftreten, da sie aus nachwachsenden Rohstoffen bestehen.n pore formers are used to influence the chip behavior. The novel pore-forming agent made from thermoplastic granules is characterized in that the shape of the pore spaces can be precisely defined and there is only little odor nuisance or hardly any environmental nuisance, since they consist of renewable raw materials.

Description

Für industrielle Zwecke werden seit Jahrzehnten weltweit große Mengen von Schleifkörpern hergestellt. Man unterscheidet die wesentlichen Mengen in zwei Hauptgruppen.

  • 1. Keramisch gebundene Schleifscheiben und
  • 2. Kunstharz gebundene Schleifscheiben
For industrial purposes, large quantities of abrasive articles have been produced worldwide for decades. One differentiates the substantial quantities into two main groups.
  • 1. Ceramic bonded grinding wheels and
  • 2. Resin-bonded grinding wheels

Struktur, Gefüge und Härte sind wesentliche Merkmale des Schleifkörperaufbaus.Structure, texture and hardness are essential features of the abrasive structure.

Bei keramischen Schleifkörpern handelt es sich um einen inhomogenen Körper, bestehend aus Korn, Bindung und Porenraum.Ceramic abrasives are an inhomogeneous body consisting of grain, bond and pore space.

Es lassen sich durch Variationen des Korn-Bindungs- und Porenvolumens beliebige Härte-Struktur und Gefügeänderungen durchführen. Die häufig durchzuführende Anpassung des Schleifkornaufbaus an das Zerspannungsverhalten bestimmter Werkstoffe kann vorteilhaft über eine Gefügeänderung erzielt werden.By varying the grain-binding and pore volume, any hardness structure and structural changes can be carried out. The frequently performed adaptation of the abrasive grain structure to the Zerspannungsverhalten certain materials can be advantageously achieved by a structural change.

Der Art und Größe des sich bildenden Spans entsprechend wird durch sogenannte Porenbildner der Schleifkörper-Porenraum, der als Spankammer dient, exakt eingestellt.According to the nature and size of the forming chip is precisely adjusted by so-called pore-forming the abrasive pore space, which serves as a chip chamber.

Diese Porenbildner sublimieren oder verbrennen und hinterlassen definierte Porenräume. Z. Zt. werden als Porenbildner in der Praxis hauptsächlich Naphthalin bzw. Plexiglas eingesetzt.These pore formers sublimate or burn and leave defined pore spaces. Currently, naphthalene or plexiglass are used as pore formers in practice.

Oben genannter Einsatzstoff, Naphthalin gehört zu den aromatischen Kohlenwasserstoffen, die leicht sublimieren bzw. verbrennen. Bei der Verarbeitung von Naphthalin entstehen erhebliche Geruchsbelästigungen, Emissionen sowie das Risiko von Gesundheitsschädigungen. (Krebsverdacht)Naphthalene is one of the aromatic hydrocarbons that easily sublimate or burn. The processing of naphthalene causes considerable odor nuisance, emissions and the risk of damage to health. (Suspected cancer)

Diese Probleme werden durch den im Gebrauchsmusterantrag aufgeführten Herstellprozess mit Thermoplastgranulaten gelöst.These problems are solved by the manufacturing process with thermoplastic granules listed in the utility model application.

Es erweist sich als vorteilhaft die Thermoplastgranulate, in ihrer Zusammensetzung aus nachwachsenden Rohstoffen mit verträglichen Bindemitteln herzustellen und als neue Porenbildner einzusetzen. Diese Granulate lassen sich gut verarbeiten, geben keine Geruchsbelästigung und belasten nicht die Umwelt, da sie bei den notwendigen Brenntemperaturen der Schleifscheibe rückstandsfrei verbrennen und dabei keine schädlichen Emissionen verursachen. Durch die höhere Ausbrenntemperatur der Thermoplastgranulate ist die Arbeitsplatzbelastung im Vergleich zu Naphthalin deutlich geringer.It proves to be advantageous to produce the thermoplastic granules in their composition of renewable raw materials with compatible binders and to use as new pore formers. These granules are easy to process, do not give off any odor nuisance and do not pollute the environment as they burn without residue at the required firing temperatures of the grinding wheel and do not cause any harmful emissions. Due to the higher burn-out temperature of the thermoplastic granules, the workplace load is significantly lower compared to naphthalene.

Die Granulate werden in folgenden Korngrößen eingesetzt:

  • 1. 1,00–1,50 mm
  • 2. 0,50–1,00 mm
  • 3. 0,25–0,50 mm
  • 4. < 0,25 mm
  • 5. nach Bedarf
The granules are used in the following grain sizes:
  • 1. 1.00-1.50 mm
  • 2. 0,50-1,00 mm
  • 3. 0.25-0.50 mm
  • 4. <0.25 mm
  • 5. as needed

Claims (1)

Bei der Herstellung von keramischen Schleifscheiben werden zur Beeinflussung des Spanverhaltens Porenbildner eingesetzt. Der neuartige Porenbildner aus Thermoplastgranulaten ist dadurch gekennzeichnet, daß die Porenräume in ihrer Form genau definiert werden können und nur geringe Geruchsbelästigung bzw. kaum Umweltbelästigungen auftreten, da sie aus nachwachsenden Rohstoffen bestehen.In the production of ceramic grinding wheels pore formers are used to influence the Spanverhaltens. The novel pore-forming agent of thermoplastic granules is characterized in that the pore spaces can be precisely defined in their shape and only slight odor or little environmental pollution occur because they consist of renewable resources.
DE202010015210U 2010-11-06 2010-11-06 Pore former made from thermoplastic granules for the production of ceramic grinding wheels Expired - Lifetime DE202010015210U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE202010015210U DE202010015210U1 (en) 2010-11-06 2010-11-06 Pore former made from thermoplastic granules for the production of ceramic grinding wheels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202010015210U DE202010015210U1 (en) 2010-11-06 2010-11-06 Pore former made from thermoplastic granules for the production of ceramic grinding wheels

Publications (1)

Publication Number Publication Date
DE202010015210U1 true DE202010015210U1 (en) 2012-01-13

Family

ID=45595722

Family Applications (1)

Application Number Title Priority Date Filing Date
DE202010015210U Expired - Lifetime DE202010015210U1 (en) 2010-11-06 2010-11-06 Pore former made from thermoplastic granules for the production of ceramic grinding wheels

Country Status (1)

Country Link
DE (1) DE202010015210U1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013004775A1 (en) * 2013-03-20 2014-09-25 Dronco Gmbh Cutting disc and method for producing such
WO2016155971A1 (en) 2015-04-01 2016-10-06 Reishauer Ag Open-pore, ceramic-bonded grinding tools, method for producing same, and pore former mixtures used to produce same
WO2017050755A1 (en) 2015-09-22 2017-03-30 Reishauer Ag Method for the production of open-pore, ceramic-bound abrasive tools

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013004775A1 (en) * 2013-03-20 2014-09-25 Dronco Gmbh Cutting disc and method for producing such
WO2016155971A1 (en) 2015-04-01 2016-10-06 Reishauer Ag Open-pore, ceramic-bonded grinding tools, method for producing same, and pore former mixtures used to produce same
CH710934A1 (en) * 2015-04-01 2016-10-14 Reishauer Ag Open-pored, ceramic-bonded grinding tool, process for its production and pore-forming mixtures used for its production.
US10800006B2 (en) 2015-04-01 2020-10-13 Reishauer Ag Open-pore, ceramic-bonded grinding tools, method for producing same, and pore former mixtures used to produce same
WO2017050755A1 (en) 2015-09-22 2017-03-30 Reishauer Ag Method for the production of open-pore, ceramic-bound abrasive tools

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20120308

R156 Lapse of ip right after 3 years

Effective date: 20140603