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JPH0739575B2 - Abrasive material and manufacturing method thereof - Google Patents

Abrasive material and manufacturing method thereof

Info

Publication number
JPH0739575B2
JPH0739575B2 JP3361347A JP36134791A JPH0739575B2 JP H0739575 B2 JPH0739575 B2 JP H0739575B2 JP 3361347 A JP3361347 A JP 3361347A JP 36134791 A JP36134791 A JP 36134791A JP H0739575 B2 JPH0739575 B2 JP H0739575B2
Authority
JP
Japan
Prior art keywords
abrasive
particles
additive
abrasive particles
tie layer
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
Application number
JP3361347A
Other languages
Japanese (ja)
Other versions
JPH04304287A (en
Inventor
グスタフ・アイゼンベルク
ヴオルフガング・フアルツ
Original Assignee
フエルアイニヒテ・シユミルゲルー・ウント・マシーネン−フアブリーケン・アクチエンゲゼルシヤフト
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 フエルアイニヒテ・シユミルゲルー・ウント・マシーネン−フアブリーケン・アクチエンゲゼルシヤフト filed Critical フエルアイニヒテ・シユミルゲルー・ウント・マシーネン−フアブリーケン・アクチエンゲゼルシヤフト
Publication of JPH04304287A publication Critical patent/JPH04304287A/en
Publication of JPH0739575B2 publication Critical patent/JPH0739575B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/34Physical 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02Physical 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02Physical 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
    • B24D3/20Physical 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 organic
    • B24D3/28Resins or natural or synthetic macromolecular compounds

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

The object of the invention is to disclose an abrasive of the type in question, which, while avoiding the limitations which the abrasives of the prior art are subject to, calls for a lower proportion of abrasive grains and thus low costs but nonetheless ensures a performance comparable with conventional abrasives. This object is achieved in the abrasive according to the preamble of Claim 1 by these additives being present roughly in the size of the abrasive grain and having less hardness than the abrasive grain.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は,基材としての担体,こ
の担体上に塗布される結合材とこの結合材中に散乱せし
められる研摩粒子及び添加材粒子とから成る基礎結合
層,及びこの基礎結合層上に塗布される覆い結合層を有
する,基材を持つ研摩材に関する。
BACKGROUND OF THE INVENTION The present invention relates to a carrier as a substrate, a base bonding layer consisting of a binder coated on the carrier, and abrasive particles and additive particles scattered in the binder, and An abrasive with a substrate having a cover tie layer applied on a base tie layer.

【0002】[0002]

【従来の技術】基材上の研摩材は一般に次のように製造
される。即ち紙,布地又はバルカンフアイバのような可
撓担体上へ,研摩粒子を静電的又は機械的に散乱させた
動物にかわ又はレゾールのような結合材が塗布される。
このいわゆる基礎結合層の硬化後,研摩粒子が担体上に
その位置を固定される。それから充填材を混合される動
物にかわ又はレゾールから成る第2の結合層いわゆる覆
い結合層が塗布される。この第2の結合層が担体上に研
摩粒子を最終的に固定的に拘束する。
Abrasives on a substrate are generally manufactured as follows. That is, a binder such as glue or resole is applied to an animal that electrostatically or mechanically scatters the abrasive particles onto a flexible carrier such as paper, fabric or balkan fiber.
After hardening of this so-called base tie layer, the abrasive particles are fixed in position on the carrier. The animal to be mixed with the filler is then applied with a second tie layer consisting of glue or resole, a so-called overlying tie layer. This second tie layer ultimately fixedly restrains the abrasive particles on the carrier.

【0003】前述した動物にかわ又はレゾールのような
研摩材用結合系における異なる種類の充填材の使用は,
種々の理由から,例えば白亜のような安価な材料による
増量に加えて,乾燥方法及び硬化方法の改善や,結合層
の機械的性質の改善のために,行われる。
The use of different types of fillers in binding systems for abrasives such as animal glue or resol as described above,
For a variety of reasons, in addition to increasing the weight with cheaper materials such as chalk, it is intended to improve the drying and curing methods and the mechanical properties of the tie layer.

【0004】更に氷晶石又はふつ化ほう酸カリウムのよ
うないわゆる研摩性充填材の使用により,研摩週程に有
利な影響が及ぼされるので,それぞれの材料に関係して
研摩効率の改善が行われる。
Furthermore, the use of so-called abrasive fillers, such as cryolite or potassium fluoroborate, has an advantageous effect on the polishing schedule, so that the polishing efficiency is improved in relation to the respective material. .

【0005】従来技術によれば,覆い結合層への添加は
微粒の形で行われる。最大に処理可能な大きさは,通常
の混合方法及び塗布方法により決定される。ドイツ連邦
共和国特許第3112954号明細書によれば,固体砥
石車における研摩性材料は,粒子又はペレツトの形で使
用される。
According to the prior art, the addition to the covering tie layer takes place in the form of fine particles. The maximum processable size is determined by conventional mixing and coating methods. According to German Patent DE 3112954, the abrasive material in a solid grinding wheel is used in the form of particles or pellets.

【0006】例えば酸化アルミニウム又は酸化ジルコニ
ウムを主成分とする共晶組成のいわゆる高効率研摩粒子
を含む通常の溶融コランダム(以下ジルコンコランダム
と称する)又は多結晶酸化アルミニウム(以下焼結コラ
ンダムと称する)の混合物を使用して,高効率研摩材の
製造費を低下することも公知である。しかし混合物全体
の粒子分布に対して特別の要求が課される。
For example, a conventional fused corundum (hereinafter referred to as zircon corundum) or polycrystalline aluminum oxide (hereinafter referred to as sintered corundum) containing so-called highly efficient abrasive particles having a eutectic composition containing aluminum oxide or zirconium oxide as a main component is used. It is also known to use mixtures to reduce the cost of producing high efficiency abrasives. However, special requirements are placed on the particle distribution throughout the mixture.

【0007】[0007]

【発明が解決しようとする課題】本発明の課題は,前記
の制限を受けないにもかかわらず,僅かな研摩粒子割合
従つて少ない費用で従来技術による研摩材に対比可能な
研摩効率を生ずる研摩材を提供することである。
SUMMARY OF THE INVENTION The object of the present invention is, despite not having the above-mentioned restrictions, a small proportion of abrasive particles and thus a polishing efficiency which is comparable to prior art abrasive materials at a low cost. Is to provide wood.

【0008】[0008]

【課題を解決するための手段】この課題を解決するた
め,最初にあげた種類の基材を持つ研摩材において,添
加材粒子が研摩粒子とほぼ同じ大きさを持ち,研摩粒子
より小さい硬度を持つている。なお添加材粒子を以下単
に添加材と称する。
[Means for Solving the Problem] In order to solve this problem, in an abrasive having a base material of the type mentioned above, the additive particles have almost the same size as the abrasive particles and have a hardness smaller than that of the abrasive particles. I have. The additive material particles will be simply referred to as additive material hereinafter.

【0009】[0009]

【発明の効果】驚くべきことに,添加材が単独では研摩
性質を持たない研摩粒子とほぼ同じ大きさで存在してい
ると,研摩効率を著しく高くできることがわかつた。即
ち特定の硬度は必要でない。例えば氷晶石において知ら
れているような研摩性質も必要でない。
Surprisingly, it has been found that the polishing efficiency can be remarkably increased when the additive alone is present in almost the same size as the polishing particles having no polishing property. That is, no specific hardness is required. Abrasive properties such as are known, for example, for cryolite are also not required.

【0010】本発明による研摩材の別の利点は,高価な
研摩粒子の節約であるだけでなく,特に研摩効率の著し
い向上である。
Another advantage of the abrasive material according to the present invention is not only the saving of expensive abrasive particles, but especially the significant improvement of the polishing efficiency.

【0011】[0011]

【実施態様】本発明の特に好ましい実施態様では,研摩
粒子及び添加材の先端ができるだけ1つの面にあり,従
つて研摩過程において同時に使用されるように,研摩粒
子及び添加材の空間配配置が選ばれる。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In a particularly preferred embodiment of the present invention, the spatial distribution of the abrasive particles and the additive is such that the tips of the abrasive particles and the additive are on one surface as much as possible and are therefore used simultaneously in the polishing process. To be elected.

【0012】例えばセラミツク研摩粒子の製造の際,ド
イツ連邦共和国特許第3604848号明細書により1
〜2のモース硬度を持つ前製品として得られるように,
乾燥されて適当な粒度にふるい分けされる微粒の酸化ア
ルミニウム懸濁液の使用も有利である。
[0012] For example, in the production of ceramic abrasive particles, according to DE-A-3604848, 1
As a pre-product with a Mohs hardness of ~ 2,
The use of finely divided aluminum oxide suspensions, which are dried and sieved to the appropriate particle size, is also advantageous.

【0013】従来技術によれば,使用される研摩粒子の
大きさで添加材を覆い結合層と共に塗布することは困難
なので,本発明によれば,使用される研摩粒子に添加材
が混合され,この混合物が静電的又は機械的に基礎層へ
散乱されるように,研摩材が有利に製造される。本発明
の別の実施態様では,両方の成分を2つ以上の連続する
散乱過程でも塗布できる。
According to the prior art, it is difficult to coat the additive with the tie layer by the size of the abrasive particles used, so according to the invention, the additive is mixed with the abrasive particles used. The abrasive is advantageously manufactured so that this mixture is electrostatically or mechanically scattered into the base layer. In another embodiment of the invention, both components can also be applied in two or more successive scattering processes.

【0014】[0014]

【実施例】本発明による研摩材を従来技術と比較して以
下の例において説明する。
EXAMPLES The abrasives according to the invention are illustrated in the following examples in comparison with the prior art.

【0015】例 1 通常のように仕上げ加工されるポリエステル布地上に,
フエノールとホルムアルデヒドとの比が1:1.5で約
80%の固体を含む50重量%のレゾールと,添加材と
して20μmの平均粒径を持つ50重量%の粉砕白亜と
から成る基礎結合層が,ドクタ塗布装置により220g
/qmの量で塗布される。それからFEPA規格による
粒度P36の33容積%のA砥粒と,同じ粒度にふるい
分けられる67容積%の白亜とから成る混合物が,公知
のように静電的に塗布され,普通の温度プログラムで乾
燥され,硬化される。塗布される研摩粒子/白亜量は約
645g/qmである。
Example 1 On a polyester cloth which is normally finished,
A basic tie layer consisting of 50% by weight of resole containing about 80% solids with a phenol to formaldehyde ratio of 1: 1.5 and 50% by weight of ground chalk having an average particle size of 20 μm as additive. 220 g by doctor coating device
/ Qm. Then, a mixture of 33% by volume of A abrasive grains with a particle size of P36 according to FEPA standard and 67% by volume of chalk which is sieved to the same particle size is electrostatically applied in a known manner and dried in a conventional temperature program. , Cured. The abrasive particles / chalk weight applied is about 645 g / qm.

【0016】続いて覆い結合層がローラ塗布装置により
塗布されるが,この覆い結合層は,50重量%のレゾー
ルと,15μmの平均粒径を持つ50重量%の合成氷晶
石から成る。塗布される量は460g/qmである。覆
い結合層は公知のように硬化される。こうして得られる
研摩材は可撓性にされ,長さ2000mmで幅50mm
の無端帯に仕立てられる。
Subsequently, a cover tie layer is applied by means of a roller applicator, the cover tie layer consisting of 50% by weight of resole and 50% by weight of synthetic cryolite having an average particle size of 15 μm. The applied amount is 460 g / qm. The overcoat tie layer is cured in a known manner. The abrasive thus obtained is made flexible and has a length of 2000 mm and a width of 50 mm.
It is tailored to endless belt.

【0017】試験は,DIN669によるC45,材料
番号1.0503から成る直径30mmの回転丸棒を3
5Nの荷重をかけて研摩することにより行われ,それぞ
れ5分の間隔で研摩される。間隔当り研摩量が50g以
下に低下する時,試験が終了される。1314gの研摩
量が得られる。
The test was carried out using a rotating round bar made of C45 according to DIN 669, material number 1.0503 and having a diameter of 30 mm.
The polishing is performed by applying a load of 5 N, and the polishing is performed at intervals of 5 minutes. The test is terminated when the amount of polishing per interval drops below 50 g. A polishing amount of 1314 g is obtained.

【0018】これに対し810g/qmの塗布量で純粋
なA砥粒を散乱される比較帯では,他の条件を同じにし
て976gの研摩量しか得られない。
On the other hand, in the comparative zone in which the pure A abrasive grains are scattered at the coating amount of 810 g / qm, the polishing amount of 976 g is obtained under the same other conditions.

【0019】例 2 例1による実験帯が製造され,AINSIによる粒度3
6の50容積%のジルコンコランダムと,添加材として
同じ粒度にふるい分けされる50容積%の白亜から成る
混合物が,散乱される。塗布される量は680g/qm
である。試験は40Nの荷重で例1におけるように行わ
れる。間隔当りの研摩量が100g以下に低下する時,
試験が終了される。2182gの研摩量が得られる。
Example 2 An experimental zone according to Example 1 was produced with a grain size of 3 according to AINSI.
A mixture of 6% by volume of 50% by volume zircon corundum and 50% by volume of chalk, which is sieved to the same particle size as the additive, is scattered. Applied amount is 680g / qm
Is. The test is carried out as in Example 1 with a load of 40N. When the polishing amount per interval drops below 100g,
The test ends. A polishing amount of 2182 g is obtained.

【0020】908g/qmの量で純粋なジルコンコラ
ンダムを散乱される比較帯では,他の条件を同じにして
1745gのg/qmしか得られない。
The comparison zone scattered with pure zircon corundum in an amount of 908 g / qm yields only 1745 g / qm under all other conditions.

【0021】例 3 実験帯が例1により製造され,添加材として粒度36に
ふるい分けされる60容積%の白亜粒子と40容積%の
ジルコンコランダムから成る混合物が散乱される。ステ
ンレス鋼(材料番号1.4301で圧延されて急冷され
る。ADW2,DIN17440−7/85)から成る
直径30mmの回転する丸棒について試験が行われる。
それぞれ5分の8つの間隔で,全部で1203gの研摩
量が得られる。
Example 3 An experimental zone is prepared according to Example 1 and a mixture of 60% by volume chalk particles and 40% by volume zircon corundum, which is sieved to a particle size 36 as an additive, is scattered. The test is carried out on a rotating round bar of stainless steel (rolled in material number 1.4301, quenched, ADW2, DIN 17440-7 / 85) with a diameter of 30 mm.
A total polishing amount of 1203 g is obtained with 8 intervals of 5 minutes each.

【0022】純粋なジルコンコランダムを散乱される比
較帯では,同じ時間で660gの研摩量しか得られな
い。
The comparative zone scattered with pure zircon corundum gives only 660 g of polish at the same time.

【0023】例 4 実験帯が例1により製造され,粒度36の55容積%の
ジルコンコランダムと,添加材として同じ粒度にふるい
分けされかつドイツ連邦共和国特許第3604848号
明細書による乾燥した微粒の45容積%の酸化アルミニ
ウム懸濁液から成る混合物が散乱される。実験帯の製造
は前の例と同じように行われる。
Example 4 An experimental zone was prepared according to Example 1 and contained 55% by volume of zircon corundum with a particle size of 36 and 45 volumes of dry granules sieved to the same particle size as additive and according to DE 3604848. % Of the aluminum oxide suspension is scattered. The experimental zone is manufactured as in the previous example.

【0024】C45から成る丸棒による前述した試験に
おいて,50Nの荷重で4293gの研摩量が得られ
る。これに対し純粋なジルコンコランダムで製造される
比較帯では,同じ条件で2165gの研摩量しか得られ
ない。本発明による研摩材の寿命は25間隔であるが,
比較帯の寿命は12間隔に過ぎない。
In the test described above with a round bar made of C45, a polishing amount of 4293 g is obtained with a load of 50 N. On the other hand, the comparative zone produced with pure zircon corundum only gives a polishing amount of 2165 g under the same conditions. The life of the abrasive according to the present invention is 25 intervals,
The life of the comparison zone is only 12 intervals.

【0025】例 5 実験帯が例1により製造され,粒度36の50容積%の
焼結コランダムと,添加材として同じ粒度の50容積%
の単結晶酸化マグネシウムから成る混合物が散乱され
る。
Example 5 An experimental zone was produced according to Example 1, with 50% by volume of sintered corundum of grain size 36 and 50% by volume of the same grain size as additive.
The mixture of single crystal magnesium oxide of is scattered.

【0026】42CrMo4(材料番号1.7225)
から成る直径30mmの回転丸棒について試験が行われ
る。35Nの押圧荷重と,それぞれ1分の20間隔で研
摩が行われる。研摩量は642gである。純粋な焼結コ
ランダムを持つ比較帯では,同じ時間で545gの研摩
量しか得られない。
42CrMo4 (material number 1.7225)
The test is carried out on a rotating round bar with a diameter of 30 mm. Polishing is performed at a pressing load of 35 N and at intervals of 1/20. The polishing amount is 642 g. In the comparative zone with pure sintered corundum, only 545 g of polish was obtained at the same time.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 ヴオルフガング・フアルツ ドイツ連邦共和国ハーゲンブルク・ハイン ヘルツエル・シユトラーセ17 (56)参考文献 特開 平3−178775(JP,A) 米国特許2806772(US,A) 米国特許3891408(US,A) 英国特許出願公開2018811(GB,A) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Wolfgang Fuartz Hagenburg Hein Herzuel Schutrase 17 (56) Reference JP-A-3-178775 (JP, A) US Patent 2806772 (US, A) US Patent 3891408 (US, A) UK Patent Application Publication 2018811 (GB, A)

Claims (9)

【特許請求の範囲】[Claims] 【請求項1】 基材としての担体,この担体上に塗布さ
れる結合材とこの結合材中に散乱せしめられる研摩粒子
及び添加材粒子とから成る基礎結合層,及びこの基礎結
合層上に塗布される覆い結合層を有するものにおいて,
添加材粒子が研摩粒子ほぼ同じ大きさを持ち,研摩粒
子より小さい硬度を持つていることを特徴とする,基材
を持つ研摩材。
1. A carrier as a substrate, which is coated on the carrier
Binder and abrasive particles scattered in the binder
And a basic tie layer consisting of additive particles and this basic bond
In those having a covering tie layer applied over the plywood ,
Wherein the additive particles have approximately the same size as the abrasive particles, which have a smaller hardness than the abrasive grains, the abrasive with a substrate.
【請求項2】 研摩粒子が共晶組成の酸化アルミニウム
と酸化ジルコニウムとから成ることを特徴とする,請求
項1に記載の研摩材。
2. The abrasive according to claim 1, wherein the abrasive particles are composed of aluminum oxide and zirconium oxide having a eutectic composition.
【請求項3】 研摩粒子が多結晶酸化アルミニウムから
成ることを特徴とする,請求項1に記載の研摩材。
3. The abrasive according to claim 1, wherein the abrasive particles are composed of polycrystalline aluminum oxide.
【請求項4】 複数種類の研摩粒子が単独で又は互いに
混合して使用されることを特徴とする,請求項1ないし
3の1つに記載の研摩材。
4. The abrasive according to claim 1, wherein a plurality of types of abrasive particles are used alone or in a mixture with each other.
【請求項5】 添加材粒子の少なくとも一部が研摩粒子
の平均直径の50ないし150%の直径を持つているこ
とを特徴とする,請求項1ないし4の1つに記載の研摩
材。
5. Abrasive material according to one of the preceding claims, characterized in that at least some of the additive particles have a diameter of 50 to 150% of the average diameter of the abrasive particles.
【請求項6】 研摩粒子の大きさを持つ添加材粒子の量
が研摩粒子及び添加材粒子から成る全量に対して5ない
し90容積%であることを特徴とする,請求項5に記載
の研摩材。
6. The polishing according to claim 5, wherein the amount of the additive particles having the size of the abrasive particles is 5 to 90% by volume based on the total amount of the abrasive particles and the additive particles. Material.
【請求項7】 研摩粒子の大きさを持つ添加材粒子とし
て,研摩材において通常使用されるすべての充填材が単
独で又は互いに混合して使用され,これらの充填材が研
摩過程中微粒となるように摩耗することを特徴とする,
請求項1ないし6の1つに記載の研摩材。
7. As additive particles having abrasive particle sizes, all fillers normally used in abrasives are used alone or in admixture with one another, and these fillers are used as abrasive particles. Characterized by wear so as to become fine particles during the process,
The abrasive according to any one of claims 1 to 6.
【請求項8】 添加材粒子及び研摩粒子を一緒に又は異
なる段階で塗布することを特徴とする,請求項1ないし
7の1つに記載の研摩材の製造方法。
8. The method for producing an abrasive according to claim 1, wherein the additive particles and the abrasive particles are applied together or at different stages.
【請求項9】 請求項1ないし7の1つに記載の研摩材
から製造される研摩工具の使用。
9. Use of an abrasive tool made of the abrasive material according to one of claims 1 to 7.
JP3361347A 1991-01-05 1991-12-27 Abrasive material and manufacturing method thereof Expired - Lifetime JPH0739575B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4100167A DE4100167A1 (en) 1991-01-05 1991-01-05 ABRASIVES AND METHOD FOR THE PRODUCTION THEREOF
DE4100167.2 1991-01-05

Publications (2)

Publication Number Publication Date
JPH04304287A JPH04304287A (en) 1992-10-27
JPH0739575B2 true JPH0739575B2 (en) 1995-05-01

Family

ID=6422580

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3361347A Expired - Lifetime JPH0739575B2 (en) 1991-01-05 1991-12-27 Abrasive material and manufacturing method thereof

Country Status (8)

Country Link
EP (1) EP0494435B1 (en)
JP (1) JPH0739575B2 (en)
KR (1) KR0149510B1 (en)
AT (1) ATE168611T1 (en)
DE (2) DE4100167A1 (en)
DK (1) DK0494435T3 (en)
ES (1) ES2120952T3 (en)
ZA (1) ZA9235B (en)

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* Cited by examiner, † Cited by third party
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US5885311A (en) * 1997-06-05 1999-03-23 Norton Company Abrasive products

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US3891408A (en) 1972-09-08 1975-06-24 Norton Co Zirconia-alumina abrasive grain and grinding tools
GB2018811A (en) 1978-03-28 1979-10-24 Schweizer Schmirgel Schleif Abrasive materials and abrasive bodies

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US2806772A (en) 1954-09-15 1957-09-17 Electro Refractories & Abrasiv Abrasive bodies
US3891408A (en) 1972-09-08 1975-06-24 Norton Co Zirconia-alumina abrasive grain and grinding tools
GB2018811A (en) 1978-03-28 1979-10-24 Schweizer Schmirgel Schleif Abrasive materials and abrasive bodies

Also Published As

Publication number Publication date
DE4100167C2 (en) 1993-04-29
DE4100167A1 (en) 1992-07-16
ES2120952T3 (en) 1998-11-16
JPH04304287A (en) 1992-10-27
DK0494435T3 (en) 2001-04-23
HK1011632A1 (en) 1999-07-16
AU9008491A (en) 1992-07-09
EP0494435B1 (en) 1998-07-22
AU650309B2 (en) 1994-06-16
EP0494435A1 (en) 1992-07-15
ZA9235B (en) 1992-09-30
KR0149510B1 (en) 1998-10-15
DE59109030D1 (en) 1998-08-27
KR920014565A (en) 1992-08-25
ATE168611T1 (en) 1998-08-15

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