JP3430157B2 - Whetstone manufacturing method - Google Patents
Whetstone manufacturing methodInfo
- Publication number
- JP3430157B2 JP3430157B2 JP2001103198A JP2001103198A JP3430157B2 JP 3430157 B2 JP3430157 B2 JP 3430157B2 JP 2001103198 A JP2001103198 A JP 2001103198A JP 2001103198 A JP2001103198 A JP 2001103198A JP 3430157 B2 JP3430157 B2 JP 3430157B2
- Authority
- JP
- Japan
- Prior art keywords
- abrasive grains
- binder
- grindstone
- grinding
- coating
- 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 - Fee Related
Links
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、砥粒を焼成して組
成を有する砥石を製造する方法に関するものであり、特
に、気孔が均一に分散し、砥粒と結合材の結合力が良好
な均一組織を持つ砥石の製造方法に関する。BACKGROUND OF THE INVENTION The present invention is set by firing the abrasive grains
TECHNICAL FIELD The present invention relates to a method for producing a whetstone having a uniform structure, and particularly to a method for producing a whetstone having a uniform structure in which pores are uniformly dispersed and the binding force between abrasive grains and a binder is good.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】通常、
砥石は砥粒に結合材を被覆し、プレス成形、焼成過程を
経て製造される。ここで製造された砥石の微細組織は、
砥粒と結合材が架橋を形成し、その間に気孔が分散した
組織を呈する。砥粒に結合材が均一に被覆され、架橋結
合に関与しない余分な結合材が少なく、また気孔が均一
に分散した組織を持つ砥石は、一定の切れ味を長期間保
持でき、研削比が高く砥石寿命が長く、さらに砥粒の脱
落が均一に生ずるため、加工物の面粗さが良好である。2. Description of the Related Art Generally,
The grindstone is manufactured by coating abrasive grains with a binder, press-molding and firing. The microstructure of the grindstone manufactured here is
The abrasive grains and the bonding material form crosslinks, and pores are dispersed therebetween to form a structure. Abrasive grains are uniformly coated with a binder, there are few extra binders that do not participate in cross-linking, and the grindstone has a structure with evenly dispersed pores. Since the life is long and the abrasive grains are evenly removed, the surface roughness of the workpiece is good.
【０００３】これに比較して、砥粒に結合材が均一に被
覆されていない場合、砥粒と結合材の架橋が不均一であ
り、ある砥粒では砥粒と結合材の結合強度が強く、また
ある砥粒では結合材がほとんど付着せず、そのため、研
削時の砥粒の保持と脱落が不均一となる。結合力が弱い
砥粒では部分的に脱落が大きく、その結果切れ刃が少な
くなり、他の砥粒に大きな力が作用するため、砥石の摩
耗が早い。このため研削比が小さく砥石の寿命が短い。
また砥粒の大きな脱落のために面粗さは粗くなり、ドレ
ス間隔を長くできない欠点がある。砥石の均一組織を得
るためには、砥粒に結合材を被覆する際に均一コーティ
ングすることが必要であり、その後の工程で組織を均一
化することは困難である。On the other hand, when the abrasive grains are not uniformly coated with the binder, crosslinking between the abrasive grains and the binder is non-uniform, and a certain abrasive grain has a strong bond strength between the abrasive grains and the binder. Also, with some abrasive grains, the binder hardly adheres, so that the retention and removal of the abrasive grains during grinding becomes uneven. Abrasive grains with a weak bonding force are more likely to fall off, resulting in fewer cutting edges and a larger force acting on other abrasive grains, resulting in faster wear of the grindstone. Therefore, the grinding ratio is small and the life of the grindstone is short.
Further, since the abrasive grains are largely removed, the surface roughness becomes rough, and there is a drawback that the dress interval cannot be lengthened. In order to obtain a uniform structure of the grindstone, it is necessary to uniformly coat the abrasive grains with the binder, and it is difficult to make the structure uniform in the subsequent steps.
【０００４】本発明は、上記の従来技術の問題点を解決
し、良好な切れ味、良好な面粗度、高い研削比を長期に
渡って維持することができ、研削寿命の長い砥石を製造
する方法を提供することを目的とするものである。The present invention solves the above-mentioned problems of the prior art and produces a grindstone capable of maintaining good sharpness, good surface roughness, and high grinding ratio for a long period of time and having a long grinding life.
The purpose is to provide a method of doing so.
【０００５】[0005]
【課題を解決するための手段】本発明は以上のような目
的のためになされたものであり、その最大粒径が砥粒の
平均粒径の１／５以下である結合材を溶媒に懸濁したス
ラリーを複数の砥粒に噴霧し、乾燥して前記結合材を前
記砥粒に85％以上の被覆率で被覆した後、前記砥粒を焼
成して均一組成を有する砥石を製造することを特徴とす
る砥石の製造方法である。また、 砥粒を被覆する結合
材がビトリファイド系及びレジノイド系であり、結合材
の最大粒径が砥粒の平均粒径の１／５以下であることを
特徴とする前記記載の砥石の製造方法である。また、砥
粒としてアルミナ系、炭化珪素系、ＣＢＮ、ダイヤモン
ドを用いることを特徴とする前記記載の砥石の製造方法
である。The present invention has been made for the above purpose, and the maximum grain size is
A slurry in which a binder having a particle diameter of ⅕ or less of the average particle diameter is suspended in a solvent is sprayed on a plurality of abrasive grains and dried to prepare the binder.
After coating the abrasive grains with a coverage of 85% or more, burn the abrasive grains.
It is a manufacturing method of the grindstone, characterized in that to produce a grinding wheel having a uniform composition form. Further, a binder vitrified system and resinoid system covering the abrasive grains, method for producing a grinding stone of the wherein the maximum particle size of the binder is 1/5 or less of the average grain size of the abrasive grains Is. Further, in the method for producing a grindstone described above, alumina-based, silicon carbide-based, CBN, or diamond is used as the abrasive grains.
【０００６】砥粒への結合材の被覆の程度を以下のよう
に定義し、その被覆率が８５％以上となる被覆方法を提
案したものであり、被覆率が８５％、より好ましくは９
０％以上の砥粒を用いて、良好な切れ味、良好な面粗
度、高い研削比を長期に渡って維持することができ、研
削寿命の長い砥石を作製することができる。砥粒表面が
結合材で被覆された砥粒の被覆率を９０％又は１００％
（完全に被覆されたものを１００％、ほぼ被覆されたも
のを９０％とする）、被覆が不完全で一部砥粒表面が露
出している砥粒の被覆率を５０％、ほとんど砥粒表面が
被覆されていない砥粒の被覆率を０％とした場合、個々
の砥粒の総和としての被覆率が８５％以上となる砥粒の
被覆方法を提供できる。本発明では結合材としてビトリ
ファイドボンド及びレジノイドボンドを用いることがで
き、その最大粒径は砥粒の平均粒径の１／５以下、より
好ましくは１／１０以下である。砥粒としては、アルミ
ナ系、炭化珪素系、ＣＢＮ系、ダイヤモンド系等の砥粒
を用いることができる。The degree of coating of the bonding material on the abrasive grains is defined as follows, and a coating method has been proposed in which the coating rate is 85% or more. The coating rate is 85%, more preferably 9%.
By using 0% or more of abrasive grains, good sharpness, good surface roughness, and high grinding ratio can be maintained for a long period of time, and a grindstone with a long grinding life can be manufactured. 90% or 100% coverage of the abrasive grains whose surface is coated with a binder
(100% is completely covered, 90% is almost covered), 50% coverage of abrasive grains with incomplete coating and partially exposed abrasive grain surface, almost all abrasive grains It is possible to provide a method for coating abrasive grains in which the coverage of the abrasive grains whose surface is not coated is 0%, and the total coverage of the individual abrasive grains is 85% or more. In the present invention, vitrified bond and resinoid bond can be used as the binder, and the maximum particle size thereof is ⅕ or less, more preferably 1/10 or less of the average particle size of the abrasive grains. As the abrasive grains, alumina-based, silicon carbide-based, CBN-based, diamond-based, etc. can be used.
【０００７】[0007]
【発明の実施の形態】以下、本発明の実施の形態につい
て説明する。砥粒表面に結合材を被覆する方法として
は、通常の撹拌らいかい機、粉末造粒コーティング装置
等がある。特に均一コーティングを施すためには、砥粒
を転動させつつ結合材をコーティングする、例えば遠心
転動造粒コーティング装置を用いることが好ましい。こ
の場合、あらかじめ砥粒表面をバインダーで濡らし、結
合材である粉末を吹きかける方法、又は溶媒にバインダ
ーを溶かし込み、結合材を懸濁させたスラリーを砥粒に
噴霧する方法等がある。しかし被覆率８５％以上で、か
つ砥粒と砥粒が結合材を介して凝集しない均一コーティ
ングを施すためには、転動造粒コーティング装置等を用
いて、結合材を懸濁させたスラリーを砥粒に噴霧する方
法が好ましい。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. As a method for coating the surface of the abrasive grain with the binder, there are a conventional stirring and shaving machine, a powder granulation coating device and the like. In particular, in order to apply a uniform coating, it is preferable to use, for example, a centrifugal rolling granulation coating device that coats the binder while rolling the abrasive grains. In this case, there are a method of previously wetting the surface of the abrasive grains with a binder and spraying a powder serving as a binder, or a method of dissolving the binder in a solvent and spraying a slurry in which the binder is suspended onto the abrasive grains. However, in order to provide a uniform coating with a coverage of 85% or more and in which the abrasive grains and the abrasive grains do not aggregate via the binder, a slurry in which the binder is suspended is prepared using a rolling granulation coating device or the like. The method of spraying on the abrasive grains is preferred.
【０００８】通常の撹拌らいかい機を用いたコーティン
グプロセスでは被覆率を８０％以上とすることは困難で
ある。またあらかじめ砥粒表面をバインダーで濡らし、
結合材である粉末を吹きかける方法は比較的均一コーテ
ィングが得られるが、砥粒と砥粒が結合材を介して凝集
した塊が多く、また砥粒に被覆されない結合材である遊
離ボンドも多くなる。これらの砥粒及び遊離ボンドを篩
により除去すればよいが、量産において作業性が悪く、
実用的ではない。また被覆率を高く、遊離ボンドを少な
くすることは困難である。このような理由から、溶媒に
バインダーを溶かし込み、結合材を懸濁させたスラリー
を砥粒に噴霧し、乾燥させる方法を発明するに至った。[0008] It is difficult to achieve a coverage of 80% or more in a coating process using a usual stirring and shaving machine. Wet the abrasive grain surface with a binder beforehand,
The method of spraying the powder as the binder gives a relatively uniform coating, but there are many aggregates of the abrasive grains and the abrasive grains coagulated via the binder, and there are also many free bonds that are the binder not covered by the abrasive grains. . Although it is sufficient to remove these abrasive grains and loose bonds with a sieve, the workability in mass production is poor,
Not practical. Further, it is difficult to increase the coverage and reduce the amount of free bonds. For these reasons, the inventors have invented a method in which a binder is dissolved in a solvent, and a slurry in which a binder is suspended is sprayed on abrasive grains and dried.
【０００９】また結合材を砥粒に均一にコーティングす
るためには、砥粒の粒径に比較して結合材の最大粒径が
１／５以下であることが必要であり、均一コーティング
を容易にするためには１／１０以下が好ましい。例えば
粒度＃１２０（粒径１００〜１２０μｍ）の砥粒を用い
る場合には、結合材の粒径は最大のものでも〜２０μｍ
以下、より好ましくは〜１０μｍ以下である。結合材の
粒径が砥粒の粒径の１／５以上になると、均一コーティ
ングが困難となる。特に結合材が多く付着した砥粒と、
結合材が全く付着しない砥粒が混在し、均一組織を持つ
砥石が製造できない。砥粒に結合材が被覆されたかどう
かは、走査型電子顕微鏡、光学顕微鏡等で確認できる。Further, in order to uniformly coat the abrasive grains with the binder, it is necessary that the maximum grain size of the binder is 1/5 or less of the grain size of the abrasive grains, which facilitates uniform coating. In order to achieve this, 1/10 or less is preferable. For example, when using abrasive grains having a grain size # 120 (particle size 100 to 120 μm), the maximum grain size of the binder is up to 20 μm.
The following is more preferable, and it is 10 μm or less. If the grain size of the binder is ⅕ or more of the grain size of the abrasive grains, uniform coating becomes difficult. Abrasive grains with a large amount of binder attached,
Abrasive particles with no binding material are mixed, and a grindstone with a uniform structure cannot be manufactured. Whether the abrasive grains are coated with the binder can be confirmed with a scanning electron microscope, an optical microscope or the like.
【００１０】このようにして製造された砥粒と結合材の
配合物において、砥粒全体の総和として被覆率が８５％
以上となり、また遊離ボンドはほとんど存在しなかっ
た。このような砥粒を用いて製造された砥石は均一組織
を示し、面粗さ、研削比、砥石寿命等の研削性能に優れ
た砥石となる。均一コーティングされた砥粒を用いた砥
石の製造は、通常の方法でよく、配合物をプレス、焼成
して砥石を作製できる。図２に被覆率の例として、被覆
率１００％、９０％、５０％及び０％の例を示す。また
図１（ａ）に、被覆率９０％以上の高被覆率の砥粒を用
いて製造された均一組織を持つ砥石の例を示す。また、
図１（ｂ）には、被覆率５０％程度の低い被覆率を用い
て製造された砥石の模式的構造を示す。In the mixture of the abrasive grains and the binder thus produced, the total coverage of the abrasive grains is 85%.
As described above, there were almost no free bonds. A grindstone manufactured by using such abrasive grains has a uniform structure and becomes a grindstone excellent in grinding performance such as surface roughness, grinding ratio, and grindstone life. The production of the grindstone using the uniformly coated abrasive grains may be carried out by a usual method, and the compound can be pressed and fired to produce the grindstone. FIG. 2 shows examples of the coverage rates of 100%, 90%, 50% and 0%. In addition, FIG. 1A shows an example of a grindstone having a uniform structure manufactured by using abrasive grains having a high coverage of 90% or more. Also,
FIG. 1B shows a schematic structure of a grindstone manufactured by using a low coverage of about 50%.
【００１１】[0011]
【実施例】以下、実施例、及び比較例に基づき本発明を
具体的に説明する。EXAMPLES The present invention will be specifically described below based on Examples and Comparative Examples.
【００１２】〔実施例１〕砥粒として＃１２０のＣＢＮ
砥粒を用い、結合材として平均粒径６μｍ（最大粒径は
１０μｍ）のビトリファイドボンドを用いた。ビトリフ
ァイドボンドの組成は、ＳｉＯ２：５５ｗｔ％、Ａｌ２
Ｏ３：３０ｗｔ％、Ｂ２Ｏ３：１０ｗｔ％、その他の成
分５ｗｔ％であった。バインダーとしてフェノール樹脂
をエタノールで希釈し、１０％希釈液を作製した。この
希釈液（１０００ｃｃ）中にビトリファイドボンド５０
０ｇを混合し、スラリーとした。転動造粒コーティング
装置を用いて、砥粒を転動させ、このスラリーを噴霧す
ることにより被覆を行った。被覆率は走査型電子顕微鏡
を用いて、１０視野を観察し、その平均値を求めた結
果、被覆率は９８％であった。砥粒１００重量部に対し
て、ボンドは２６重量部であった。このようにして作製
された砥粒と結合材の配合物を砥石形状にプレス成形
し、窒素雰囲気中、１０３０℃で焼成し、ストレート型
（１００D×７T×２５H）ＣＢＮビトリファイド砥石を
作製した。[Example 1] # 120 CBN as abrasive grains
A vitrified bond having an average particle size of 6 μm (maximum particle size is 10 μm) was used as a binder by using abrasive grains. The composition of the vitrified bond is SiO2: 55 wt%, Al2
O3: 30% by weight, B2O3: 10% by weight, and other components 5% by weight. A phenol resin as a binder was diluted with ethanol to prepare a 10% diluted solution. Vitrified bond 50 in this diluted solution (1000 cc)
0 g was mixed to make a slurry. The rolling was carried out by rolling the abrasive grains using a rolling granulation coating device and spraying this slurry. The coating rate was 98% as a result of observing 10 fields of view using a scanning electron microscope and determining the average value. The bond was 26 parts by weight with respect to 100 parts by weight of the abrasive grains. The thus-prepared mixture of the abrasive grains and the binder was press-molded into a grindstone shape and fired at 1030 ° C. in a nitrogen atmosphere to prepare a straight type (100D × 7T × 25H) CBN vitrified grindstone.
【００１３】〔比較例１〕砥粒に結合材をコーティング
する方法として通常の撹拌らいかい機を用い、砥粒にバ
インダーとしてフェノール樹脂をコーティングした。そ
の後実施例１と同一組成のビトリファイドボンド５００
ｇを加えて同様に撹拌・混合し、ボンドを被覆した。砥
粒の被覆率は６５％であった。実施例１と同様にして、
ＣＢＮビトリファイド砥石を作製した。[Comparative Example 1] As a method for coating the abrasive grains with a binder, a conventional stirring and shaving machine was used, and the abrasive grains were coated with a phenol resin as a binder. After that, the vitrified bond 500 having the same composition as in Example 1 is used.
g was added and stirred and mixed in the same manner to coat the bond. The coverage of the abrasive grains was 65%. In the same manner as in Example 1,
A CBN vitrified grindstone was produced.
【００１４】〔加工例〕以上の実施例及び比較例で得ら
れたＣＢＮビトリファイド砥石を用いて、被削材（ＳＵ
Ｊ２焼き入れ１００L×３．５W）の表面を研削加工し
た。研削条件は以下の通りであり、砥石周速度１６００
ｍ／ｍｉｎ、テーブル送り速度８ｍ／ｍｉｎ、切り込み
量２６μｍ、湿式研削方式であった。砥石のドレスは、
ドレッサとしてＳＤ５０Ｍ１００Ｍを用い、速度比０．
４、リード０．１ｍｍ／回転、切り込み量２μｍ／ｐａ
ｓｓとして行った。以上のような条件で加工した場合
の、研削比（被研削物の研削量（体積）／砥石損耗量
（体積）で定義される）、研削面粗さ（一定量の被研削
物の研削後の表面粗さＲａ）、研削抵抗（一定量の被研
削物の研削後の研削抵抗：電流値による）を調べた結果
を表１に示す。これら表１に示される数値は、比較例を
１．００として実施例の値を相対評価したものである。[Working Example] Using the CBN vitrified grindstones obtained in the above Examples and Comparative Examples, the work material (SU
The surface of J2 quenching 100 L x 3.5 W) was ground. Grinding conditions are as follows, grinding wheel peripheral speed 1600
m / min, table feed speed 8 m / min, depth of cut 26 μm, wet grinding method. The dress of the whetstone is
SD50M100M is used as a dresser and the speed ratio is 0.
4, lead 0.1mm / rotation, cutting depth 2μm / pa
I went as ss. Grinding ratio (defined by grinding amount (volume) of grinding object / abrasion amount of grinding wheel (volume)), grinding surface roughness (after grinding a certain amount of grinding object) when processed under the above conditions Table 1 shows the results of examining the surface roughness Ra) and the grinding resistance (grinding resistance after grinding a certain amount of the object to be ground: according to current value). The numerical values shown in Table 1 are relative evaluations of the values of the examples with the comparative example being 1.00.
【００１５】〔実施例２〕砥粒として＃８０のアルミナ
ＷＡ砥粒を用い、結合材として平均粒径１０μｍ（最大
粒径は１５μｍ）のフェノール樹脂系ノボラック粉末を
用いた。バインダーとしてフェノール樹脂をエタノール
中に溶解し、１０％希釈液とした。まず１５％希釈液
を、転動造粒装置を用いて、砥粒を転動させながら、砥
粒に噴霧した（工程１）。ついでバインダーとしてＰＶ
Ａを用い水で希釈し、３％希釈液を作製した。ＰＶＡ希
釈液１０００ｃｃに６００ｇのノボラックを混合し、こ
のスラリーを噴霧した（工程２）。この工程１，２を２
回繰り返し、被覆を行った。実施例１と同様にして被覆
率を測定した結果、被覆率は９２％であった。このよう
にして作製された砥粒と結合材の配合物を砥石形状にプ
レス成形し、１８０℃で焼成し、カップ型（１００D×
２５T×２５H、６W）レジノイド砥石を作製した。Example 2 # 80 alumina WA abrasive grains were used as the abrasive grains, and a phenol resin type novolac powder having an average grain size of 10 μm (the maximum grain size was 15 μm) was used as the binder. Phenolic resin as a binder was dissolved in ethanol to prepare a 10% diluted solution. First, a 15% diluted liquid was sprayed onto the abrasive grains while rolling the abrasive grains using a rolling granulator (step 1). Then PV as a binder
A was diluted with water to prepare a 3% diluted solution. 600 g of novolac was mixed with 1000 cc of the PVA diluted solution, and this slurry was sprayed (step 2). Steps 1 and 2
The coating was performed repeatedly. As a result of measuring the coverage in the same manner as in Example 1, the coverage was 92%. The mixture of the abrasive grains and the binder thus produced is press-molded into a grindstone shape, baked at 180 ° C., and cup-shaped (100D ×
25T × 25H, 6W) Resinoid grindstone was prepared.
【００１６】〔比較例２〕砥粒に結合材をコーティング
する方法として、通常の撹拌らいかい機を用い、砥粒に
バインダーとして液状フェノール樹脂をコーティングし
た。その後ノボラック粉末を加えて同様に撹拌・混合
し、ボンドを被覆した。実施例２と同様にして、レジノ
イド砥石を作製した。砥粒の被覆率は６０％であった。[Comparative Example 2] As a method for coating the abrasive grains with a binder, a conventional stirring and shaving machine was used to coat the abrasive grains with a liquid phenol resin as a binder. After that, novolak powder was added and stirred and mixed in the same manner to coat the bond. A resinoid grindstone was produced in the same manner as in Example 2. The coverage of the abrasive grains was 60%.
【００１７】〔加工例〕以上の実施例２及び比較例２で
得られたアルミナ系レジノイド砥石を用いて、被削材
（ＳＵＪ２焼き入れΦ２０）の表面を研削加工した。研
削条件は以下の通りであり、砥石周速度１２００ｍ／ｍ
ｉｎ、被削材回転数３４０ｒｐｍ、切り込み速度７ｍｍ
／ｍｉｎ、湿式インフィード研削方式であった。砥石の
ドレスは、ドレッサとしてインプリダイヤモンドドレッ
サを用い、砥石周速度１２００ｍ／ｍｉｎ、リード０．
１ｍｍ／回転、切り込み量３０μｍ／ｐａｓｓ、ドレス
量１ｍｍであった。以上の条件で、上述の加工例と同様
に研削比、研削面粗さ、研削抵抗を調べた結果を表１に
示す。これら表１に示される数値は、比較例を１．００
として実施例の値を相対評価したものである。[Processing Example] Using the alumina-based resinoid grindstones obtained in Example 2 and Comparative Example 2 described above, the surface of the work material (SUJ2 quenched Φ20) was ground. Grinding conditions are as follows, grinding wheel peripheral speed 1200 m / m
in, work material rotation speed 340 rpm, cutting speed 7 mm
/ Min, wet in-feed grinding method. The dress of the grindstone uses an implied diamond dresser as the dresser, the grindstone peripheral speed is 1200 m / min, and the lead is 0.
It was 1 mm / rotation, the cut amount was 30 μm / pass, and the dress amount was 1 mm. Table 1 shows the results of examining the grinding ratio, the grinding surface roughness, and the grinding resistance under the above conditions, as in the above-described processing example. The numerical values shown in Table 1 are 1.00 for the comparative example.
Is a relative evaluation of the values of the examples.
【００１８】[0018]
【表１】 [Table 1]
【００１９】[0019]
【発明の効果】以上説明したように、本発明方法を用い
ることにより、良好な切れ味、良好な面粗度、高い研削
比を長期に渡って維持することができ、研削寿命の長い
砥石を提供できる。As described above, by using the method of the present invention, it is possible to maintain a good sharpness, a good surface roughness, and a high grinding ratio for a long period of time, and to provide a grindstone with a long grinding life. I can .
【図１】図１は、被覆率と砥石の模式的構造の関連を示
す図である。FIG. 1 is a diagram showing a relationship between a coverage and a schematic structure of a grindstone.
【図２】図２は、粒子の被覆率別観察写真である。FIG. 2 is an observation photograph by particle coverage.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｂ２４Ｄ 3/28 Ｂ２４Ｄ 3/28 (72)発明者 星野 和友 埼玉県上尾市原市1333−２ 三井金属鉱 業株式会社総合研究所内 (72)発明者 佐藤 政和 埼玉県入間市狭山ヶ原11−10 三井研削 砥石株式会社内 (72)発明者 山下 勝彦 埼玉県入間市狭山ヶ原11−10 三井研削 砥石株式会社内 (72)発明者 酒井 明 埼玉県入間市狭山ヶ原11−10 三井研削 砥石株式会社内 (56)参考文献 特開2001−64629（ＪＰ，Ａ) 特開 昭62−136376（ＪＰ，Ａ) 特開2000−301460（ＪＰ，Ａ) 特開 平10−309670（ＪＰ，Ａ) 特開2001−58824（ＪＰ，Ａ) 特開 平８−112765（ＪＰ，Ａ) 特開 昭62−94262（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) C09K 3/14 B24D 3/00 - 18/00 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 7 Identification symbol FI B24D 3/28 B24D 3/28 (72) Inventor Kazutomo Hoshino 1333-2 Hara-shi, Ageo-shi, Saitama Mitsui Mining & Smelting Co., Ltd. In-house (72) Masakazu Sato 11-10 Sayamagahara, Iruma-shi, Saitama Prefecture Mitsui Grinding Wheel Co., Ltd. (72) Katsuhiko Yamashita 11-10 Sayamagahara, Iruma-shi, Saitama Prefecture Mitsui Grinding Wheel Co., Ltd. (72) Inventor Akira Sakai 11-10 Sayamagahara, Iruma-shi, Saitama Mitsui Grinding Wheel Co., Ltd. (56) Reference JP 2001-64629 (JP, A) JP 62-136376 (JP, A) JP 2000- 301460 (JP, A) JP 10-309670 (JP, A) JP 2001-58824 (JP, A) JP 8-112765 (JP, A) JP 62-94262 (JP, A) (JP 58) Fields investigated (Int.Cl. 7 , DB name) C09K 3/1 4 B24D 3/00-18/00
Claims (3)
以下である結合材を溶媒に懸濁したスラリーを複数の砥
粒に噴霧し、乾燥して前記結合材を前記砥粒に85％以上
の被覆率で被覆した後、前記砥粒を焼成して均一組成を
有する砥石を製造することを特徴とする砥石の製造方
法。1. The maximum grain size is 1/5 of the average grain size of the abrasive grains.
The in which binder less spraying the slurry suspended in a solvent into a plurality of abrasive grains, dried the combined material the abrasive grains 85% or more
After coating with a coverage of, the abrasive grains are baked to obtain a uniform composition.
Producing how <br/> method of the grindstone, characterized in that to produce a grinding wheel having.
系及びレジノイド系であることを特徴とする請求項１記
載の砥石の製造方法。2. The method for producing a grindstone according to claim 1, wherein the binder coating the abrasive grains is a vitrified type or a resinoid type.
ＢＮ、ダイヤモンドを用いることを特徴とする請求項１
記載の砥石の製造方法。3. Alumina-based, silicon carbide-based, C as abrasive grains
A BN or a diamond is used.
A method for manufacturing the described whetstone .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001103198A JP3430157B2 (en) | 2001-04-02 | 2001-04-02 | Whetstone manufacturing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001103198A JP3430157B2 (en) | 2001-04-02 | 2001-04-02 | Whetstone manufacturing method |
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| Publication Number | Publication Date |
|---|---|
| JP2002294221A JP2002294221A (en) | 2002-10-09 |
| JP3430157B2 true JP3430157B2 (en) | 2003-07-28 |
Family
ID=18956286
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|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008115303A (en) * | 2006-11-06 | 2008-05-22 | Hiroshi Ishizuka | Resin material for polishing tool and its manufacturing method |
| JP6398333B2 (en) * | 2014-06-03 | 2018-10-03 | 株式会社ジェイテクト | Vitrified bond grinding wheel manufacturing method |
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| JP2002294221A (en) | 2002-10-09 |
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