JPH0453668A - Magnetic polishing method - Google Patents
Magnetic polishing methodInfo
- Publication number
- JPH0453668A JPH0453668A JP15999290A JP15999290A JPH0453668A JP H0453668 A JPH0453668 A JP H0453668A JP 15999290 A JP15999290 A JP 15999290A JP 15999290 A JP15999290 A JP 15999290A JP H0453668 A JPH0453668 A JP H0453668A
- Authority
- JP
- Japan
- Prior art keywords
- ferromagnetic
- magnetic
- needle
- polishing
- needles
- 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.)
- Pending
Links
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 70
- 238000005498 polishing Methods 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims description 19
- 230000005294 ferromagnetic effect Effects 0.000 claims abstract description 52
- 230000005389 magnetism Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 239000010970 precious metal Substances 0.000 description 6
- 238000007517 polishing process Methods 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 229910001020 Au alloy Inorganic materials 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 239000003353 gold alloy Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001260 Pt alloy Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910001080 W alloy Inorganic materials 0.000 description 1
- 239000011805 ball Substances 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 230000005307 ferromagnetism Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、貴金属装身具などの研磨に際して微細部分を
も光輝研磨することがてきる磁気研磨方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a magnetic polishing method that can brightly polish even minute parts when polishing precious metal jewelry.
（従来の技術〉
貴金属装身具の製造工程において、研磨は極めて重要な
最終段階での加工技術である。(Prior art) In the manufacturing process of precious metal jewelry, polishing is an extremely important final stage processing technology.
貴金属製の金属枠並びにパーツは、その殆どが鍛造か鋳
造で行われている。これらは、その工程上、金属表面が
不均一な粗さをもち１例えば、鋳造法で作られた鋳肌は
、表面アラサ１０〜３５．■。Most precious metal frames and parts are forged or cast. Due to the process, these metal surfaces have uneven roughness (for example, cast surfaces made by casting methods have a surface roughness of 10 to 35. ■.
硬度７０〜１７０ＨＶである。従って、審美的に研磨が
必要なことは言うまでもなく、例えば宝石を取り付ける
部分の研磨か不充分ては、光の反射屈折が十分でなく、
その輝きは減殺されて著しく商品価値を損なうことにな
る。Hardness is 70-170HV. Therefore, it goes without saying that polishing is necessary for aesthetic reasons, but for example, if the part where the jewelry is attached is not polished enough, the reflection and refraction of light will not be sufficient.
Its shine will be diminished and the product value will be significantly impaired.
従来より、上記した研磨は、終始人手によるものてあっ
たが、近年、それを助成するために電解研磨法やバレル
研磨法が併用されている。Traditionally, the polishing described above has been done manually, but in recent years, electrolytic polishing and barrel polishing have been used in combination to assist with this polishing.
上記した電解研磨法では、貴金属製の金属枠並びにパー
ツか金（Ａｕ）合金或いは銀（Ａｇ）合金の場合、人手
による研磨では不可能に近いアンダーカット部や網目模
様、カゴ状の部分をも光輝研磨することが可能であるが
、その一方、白金（ｐｔ）合金ては未だ電解研磨法が開
発されていない実情にある。In the case of metal frames and parts made of precious metals, gold (Au) alloys, or silver (Ag) alloys, the electrolytic polishing method described above can remove undercuts, mesh patterns, and cage-shaped parts that are nearly impossible to polish by hand. Bright polishing is possible, but on the other hand, an electrolytic polishing method has not yet been developed for platinum (PT) alloys.
また、上記したｐｔ金合金、その鋳造後の鋳肌面が、高
温の為に鋳型材と焼着を起して、不輝の白色化構造とな
り、人手による研磨を行うに際して、表面に著しい粘性
をもった金属であるために極めて研磨効率か悪く、アン
ダーカット部や。In addition, the cast surface of the above-mentioned PT gold alloy after casting is baked with the mold material due to the high temperature, resulting in a dull white structure, and when manually polished, the surface becomes extremely viscous. Because it is a metal with a certain amount of metal, the polishing efficiency is extremely poor, resulting in undercuts.
他の部位の研磨においても極めて多くの困難を伴い、未
研磨のままで製品化せざるを得ないことかしばしばある
。Polishing other parts is also very difficult, and it is often necessary to produce products without polishing them.
一方、上記したような人手による研磨作業を軽減し、被
研磨体の化学的性質に影響されないバレル研磨が普及し
てきた。このバレル研磨は、容器の中に研磨材（針、球
、皮、セラミックなど）と被研磨体（指輪など）とを入
れ、この容器を振動したり、遠心力で回転したり、反転
したりして研磨材に運動を与え、被研磨体を研磨する方
法であるが、被研磨体の表層部は研磨されるものの、前
記アンダーカット部、その他の微細部分については大き
な期待がもてないのが実情である。これは、研磨材と被
研磨体との相対運動が比較的小さいのて、特に微細部分
では研磨効果が低いし、また、研磨材自体が凝集して動
かなくなるためである。その為に、研磨材が一定の運動
量をもつと、停止したり、反転させたり、回転方向を変
えたりする工夫がなされているが、十分な成果は得られ
ていない。On the other hand, barrel polishing has become popular because it reduces manual polishing work as described above and is not affected by the chemical properties of the object to be polished. This barrel polishing involves placing an abrasive material (needle, ball, leather, ceramic, etc.) and an object to be polished (a ring, etc.) in a container, and then vibrating the container, rotating it with centrifugal force, or inverting it. This is a method of polishing the object by applying motion to the abrasive material, but although the surface layer of the object is polished, the reality is that it does not hold much promise for the undercuts and other fine parts. It is. This is because the relative movement between the abrasive and the object to be polished is relatively small, so the polishing effect is low, especially in fine parts, and the abrasive itself aggregates and does not move. To this end, attempts have been made to stop, reverse, or change the direction of rotation when the abrasive has a certain amount of momentum, but no satisfactory results have been achieved.
〈発明か解決しようとする課題）
上記したように、従来の電解研磨方法やバレル研磨方法
では、特にｐｔ合金製の装身具のアンダーカット部、そ
の他の微細部分を研磨することかできず、人手に頼らざ
るを得ない。<Problems to be Solved by the Invention> As mentioned above, with the conventional electrolytic polishing method and barrel polishing method, it is not possible to polish the undercuts and other minute parts of jewelry made of PT alloy, and it is difficult to polish them manually. I have no choice but to rely on it.
したがって、特殊な技術を有する専門職人への依存度が
著しく大きく、その研磨時間や人件費を軽減することが
できる研磨方法が希求されていた。Therefore, there is a significant dependence on specialized craftsmen with special skills, and a polishing method that can reduce polishing time and labor costs has been desired.
（課題を解決するための手段）
本発明は上記に鑑み提案されたものて、被研磨体を入れ
た容器中に強磁性針と非磁性針とを混合して高速の回転
磁場を作用することにより１強磁性針及び非磁性針を高
速でランダム運動させることを特徴とする磁気研磨方法
に関するものである。(Means for Solving the Problems) The present invention has been proposed in view of the above, and involves mixing ferromagnetic needles and non-magnetic needles in a container containing an object to be polished, and applying a high-speed rotating magnetic field to the container. The present invention relates to a magnetic polishing method characterized by randomly moving a ferromagnetic needle and a non-magnetic needle at high speed.
上記した本発明における高速の回転磁場は。The high-speed rotating magnetic field in the present invention described above is as follows.
例えば汎用されているマグネットミキサーを利用して容
易に得られるものである。このマグネットミキサーは、
棒状の磁石と直流のモーターの軸を１字型になるように
直結した構成であり、このモーターを回転する機構を有
するものである。For example, it can be easily obtained using a commonly used magnetic mixer. This magnetic mixer is
It has a configuration in which a rod-shaped magnet and the shaft of a DC motor are directly connected in a single-shape configuration, and has a mechanism for rotating this motor.
通常、磁束密度は、マグネットミキサー上で凡そ１００
０〜２０００ガウスである。Normally, the magnetic flux density is approximately 100 on a magnetic mixer.
It is 0 to 2000 Gauss.
上記したマグネットミキサーは、通常、液体の攪拌に使
用され、この場合、マグネットミキサーの磁石の真上に
液体及び強磁性体の回転子を入れたビーカーを載せ、電
源を入れると、回転子は磁場の中心に引き付けられ、続
いてマグネットミキサー中のモーターを回転すると、マ
グネットミキサー中の磁石とビーカー中の回転子とが常
に一体となって感応して急速に回転する。液体は。The magnetic mixer described above is usually used to stir liquids.In this case, a beaker containing a liquid and a ferromagnetic material rotor is placed directly above the magnet of the magnetic mixer, and when the power is turned on, the rotor moves in a magnetic field. When the motor in the magnetic mixer is subsequently rotated, the magnet in the magnetic mixer and the rotor in the beaker always act as one and rotate rapidly. The liquid.
この回転子により遠心力を受け、ビーカー内壁にそって
盛り上がり攪拌される。This rotor receives centrifugal force, causing it to swell along the inner wall of the beaker and be stirred.
また、本発明に使用する容器は、特に限定するものでは
なく、例えば汎用のビーカーを使用することがてきる。Further, the container used in the present invention is not particularly limited, and for example, a general-purpose beaker can be used.
次に、本発明に使用する強磁性針及び非磁性針は、以下
のような検討の末、見い出されたものである。Next, the ferromagnetic needle and non-magnetic needle used in the present invention were discovered after the following studies.
まず、形状が複雑でアンダーカット部、その他の微細部
分を有する被研磨体を研磨するのに使用する研磨針とし
ては、次の条件が必要と考えられた。First, it was thought that the following conditions were necessary for a polishing needle used for polishing an object to be polished that has a complex shape and has undercuts and other minute parts.
■研磨針が常にランダムに運動すること。■The polishing needle always moves randomly.
■研磨針の硬度は少なくとも被研磨体の２倍以上である
こと。■The hardness of the polishing needle must be at least twice that of the object to be polished.
■研磨針は被研磨体の微細部分にまて入り込み、出入り
することができること。■The polishing needle must be able to enter and exit the fine parts of the object to be polished.
例えば、上記した条件■を満足する強磁性針が、条件■
を満足するためには、その直径が極めて小さく、長さも
短いものになるので、磁場の影響を受は易い。For example, a ferromagnetic needle that satisfies the condition ■ above is
In order to satisfy the requirements, the diameter must be extremely small and the length must be short, so it is easily affected by the magnetic field.
このような強磁性針だけをビーカー中に入れ、マグネッ
トミキサーにより低速の回転磁場を作用すると、それぞ
れの強磁性針の自由度が大きい間、即ち、ある一定量（
本数）までは、高速の回転運動をする。When only such ferromagnetic needles are placed in a beaker and a low-speed rotating magnetic field is applied by a magnetic mixer, while each ferromagnetic needle has a large degree of freedom, a certain amount (
until the number of pieces), it performs a high-speed rotational movement.
続いて、マグネットミキサーの回転数を高くすると、そ
れぞれの強磁性針は、遠心力により中心の磁場からビー
カー内壁に飛ばされる挙動と、また中心の磁場に引き寄
せられる挙動とを繰り返すことになり、全体としてラン
ダム運動することになる。Next, when the rotational speed of the magnetic mixer is increased, each ferromagnetic needle repeats the behavior of being blown from the central magnetic field to the inner wall of the beaker due to centrifugal force, and then being attracted to the central magnetic field, causing the entire ferromagnetic needle to It will move randomly.
しかし、ビーカーに入れる強磁性針の量が一定以上の量
になると、強磁性針は、独自に回転運動したりランダム
運動したりすることができなくなる。これは、それぞれ
の強磁性針がマグネットミキサーの磁場により回転しよ
うとしても、自由度を互いに制限して小さくしているの
て、しかも近接する強磁性針はそれぞれ互いに磁力で引
き合って、あたかも１（ＩＩの磁石を形成するような塊
状になるため、それぞれの強磁性針が回転運動したりラ
ンダム運動することはない。However, if the amount of ferromagnetic needles put into the beaker exceeds a certain amount, the ferromagnetic needles will no longer be able to independently rotate or make random movements. This is because even if each ferromagnetic needle tries to rotate due to the magnetic field of the magnetic mixer, the degrees of freedom are mutually limited and small, and the ferromagnetic needles that are close to each other attract each other with magnetic force, making it appear as if 1 ( Since the ferromagnetic needles form a block like the one forming the magnet II, there is no rotational or random movement of each ferromagnetic needle.
このように、条件■及び■を満足する強磁性針だけを入
れたビーカーに、高速の回転磁場を作用すると、強磁性
針がある一定以下の量ては研磨に好適な挙動を示すが、
このように強磁性針が少ない量では実際に被研磨体を効
率的に研磨することができないし、一方、強磁性針の量
を多くするとランダム運動させることさえできなくなっ
てしまう。In this way, when a high-speed rotating magnetic field is applied to a beaker containing only ferromagnetic needles that satisfy conditions (1) and (2), the amount of ferromagnetic needles below a certain level exhibits suitable behavior for polishing.
In this way, if the amount of ferromagnetic needles is small, it is not possible to actually polish the object to be polished efficiently, and on the other hand, if the amount of ferromagnetic needles is increased, it becomes impossible to even make random movements.
また、言うまでもなく非磁性針たけでは、前記した条件
■及び■を満足することはできても。Needless to say, it is possible to satisfy the above-mentioned conditions (1) and (2) with a non-magnetic needle.
磁場の影響を全く受けないのて、ランダム運動させるこ
とができない。Since it is completely unaffected by magnetic fields, it cannot be caused to move randomly.
本発明者は、上記した知見に基づいて、強磁性針と非磁
性研磨針とを組合せて使用することにより、条件■〜■
を満足することができることを見い出した。Based on the above-mentioned findings, the present inventor has determined that conditions ■ to ■
I have found that I can satisfy the following.
即ち、本発明に使用する強磁性針は、前記した条件■を
満足する特性を有し、高速の回転磁場に感応して挙動す
る性質のものであれば使用することができ、また、本発
明に使用する非磁性針は。That is, the ferromagnetic needle used in the present invention can be used as long as it has characteristics that satisfy the above-mentioned condition (1) and behaves in response to a high-speed rotating magnetic field. The non-magnetic needle used for
前記した条件■及び■を満足する特性を有し、硬度が高
く、且つ被研磨体の微細部分にまで入り込み、出入りす
ることができるものであればよい
また１本発明に使用する強磁性針、非磁性針として、耐
食性材料を使用してもよく、この場合、メンテナンスが
極めて容易となる。A ferromagnetic needle for use in the present invention may be used as long as it has characteristics that satisfy the above-mentioned conditions (1) and (2), has high hardness, and is capable of penetrating and moving in and out of minute parts of the object to be polished. Corrosion-resistant materials may be used as the non-magnetic needles, in which case maintenance becomes extremely easy.
上記した強磁性針、非磁性針としては、例えば指輪の金
属枠などを研磨する場合、強磁性針が直径約ｌ■−φ、
長さ５〜１０ｍｍで、非磁性針が直径約０．４〜０．５
■φ、長さ３〜６Ｉのものを例示することかてきる。ま
た、これらの混合比を。As for the above-mentioned ferromagnetic needles and non-magnetic needles, for example, when polishing a metal frame of a ring, the ferromagnetic needle has a diameter of about 1 - φ,
The length is 5 to 10 mm, and the non-magnetic needle has a diameter of approximately 0.4 to 0.5 mm.
(2) Examples of φ and lengths of 3 to 6 I can be given. Also, the mixing ratio of these.
重量％で５０対５０とした場合、非磁性針は、強磁性針
に対して、直径が１／２、長さでは１／２以下、表面積
は４倍以上となり、本数はＩｇ当り３０〜４０倍となっ
て研磨効果に貢献する。When the weight ratio is 50:50, the diameter of non-magnetic needles is 1/2 that of ferromagnetic needles, the length is less than 1/2, the surface area is more than 4 times, and the number of needles is 30 to 40 per Ig. This doubles and contributes to the polishing effect.
また１強磁性針の材質は、例えばＳＯ３３０４を、非磁
性針の材質は、例えばＣｏをベースとしたＭｏ −Ｗ合
金を例示することができ、この場合、ＨＶ硬度が５００
で、被研磨体の３〜４倍となり１．共に極めて耐食性が
良好である。Further, the material of the 1 ferromagnetic needle can be, for example, SO3304, and the material of the non-magnetic needle can be, for example, a Co-based Mo-W alloy. In this case, the HV hardness is 500
Therefore, it is 3 to 4 times the size of the object to be polished.1. Both have extremely good corrosion resistance.
尚、本発明に使用する強磁性針は、前記したように高速
の回転磁場に感応して挙動する性質のものてあれば特に
材質を屓定するものでないので、高い加工率や切断等に
よって相変化して磁化したものも使用することが可能で
あり、以下、強磁性という語句も上記した内容を示すも
のとして使用する。Note that the material of the ferromagnetic needle used in the present invention is not particularly determined as long as it behaves in response to a high-speed rotating magnetic field as described above. It is also possible to use materials that have been changed and magnetized, and hereinafter the term ferromagnetism will also be used to indicate the above content.
次に、本発明の研磨状態を説明する。Next, the polishing state of the present invention will be explained.
ビーカー中に、被研磨体と強磁性針と非磁性針とを入れ
、マグネットミキサーにより高速の回転磁場を作用する
。The object to be polished, a ferromagnetic needle, and a non-magnetic needle are placed in a beaker, and a high-speed rotating magnetic field is applied using a magnetic mixer.
強磁性針は、前記したように遠心力により中心の磁場か
らビーカー内壁に飛ばされる挙動と、また中心の磁場に
引き寄せられる挙動とを繰り返すランダム運動をする。As described above, the ferromagnetic needle makes a random motion, repeating the behavior of being blown away from the central magnetic field to the inner wall of the beaker due to centrifugal force and the behavior of being attracted by the central magnetic field.
一方、非磁性針は磁場には影響を受けないが、自重が軽
く、量（本数）が強磁性針よりも多いので１強磁性針の
多大な運動力に弾き飛ばされ、或いはからんで同調し、
上下縦横と乱舞して恰も沸騰状態のように加速される。On the other hand, non-magnetic needles are not affected by the magnetic field, but because they are lighter in weight and have more needles than ferromagnetic needles, they are easily blown away by the kinetic force of the ferromagnetic needles, or become entangled and synchronized. ,
It danced wildly up and down, accelerating as if it were in a boiling state.
この時、強磁性針も非磁性針も、ビーカー内に多量に存
在するが、各強磁性針はその周囲を非磁性針に包囲され
た状態となるので、近接する強磁性針と引き合って一体
化しようとする動きを非磁性体に防止される状態となり
、動きを停止することなくランダム運動を続ける。At this time, a large amount of both ferromagnetic needles and non-magnetic needles are present in the beaker, but each ferromagnetic needle is surrounded by non-magnetic needles, so they pull together with neighboring ferromagnetic needles and become integrated. The non-magnetic material prevents the movement of the object, and the object continues to move randomly without stopping.
上記したような環境下におかれた被研磨体は、体積も重
量も強磁性針及び非磁性針よりも大きいので、極めて大
きな抵抗体となり、被研磨体のアンダーカット部、その
他の微細部分にも不特定に強磁性針及び非磁性針が出入
りを繰り返して研磨する。The object to be polished under the above-mentioned environment has a larger volume and weight than ferromagnetic needles and non-magnetic needles, so it becomes an extremely large resistor and can damage undercuts and other minute parts of the object to be polished. Ferromagnetic needles and non-magnetic needles are repeatedly moved in and out to polish the surface.
また、本発明の磁気研磨方法における研磨能率は１種々
の因子に依存するものてあり、例えば使用する強磁性針
や非磁性針の材質（硬度）、大きさ、それらの混合割合
や使用量、使用する容器の大きさ、回転磁場の回転数な
どによっても変化するものであり、用途に応じて適宜に
設定すればよい。Furthermore, the polishing efficiency in the magnetic polishing method of the present invention depends on various factors, such as the material (hardness) and size of the ferromagnetic needles and non-magnetic needles used, their mixing ratio and amount used, It changes depending on the size of the container used, the rotation speed of the rotating magnetic field, etc., and may be set appropriately depending on the application.
例えば、後述する実施例に示したように１強磁性針と非
磁性針との混合割合を重量比で２５ニア５〜７５：２５
としてもよいし、強磁性の大きい金属、Ｆｅｓ＊−Ｃｏ
ｓｓ％の二元合金を強磁性針としてを使用すると、重量
比で１０〜１５％まて強磁性針の量を減しても研磨効果
に有効性があることが見い出され、この範囲において混
合割合を設定すればよい。For example, as shown in the examples described later, the mixing ratio of ferromagnetic needles and non-magnetic needles is 25 nia 5 to 75:25 by weight.
Alternatively, a highly ferromagnetic metal, Fes*-Co
It has been found that when a binary alloy of ss% is used as the ferromagnetic needle, the polishing effect is effective even if the amount of the ferromagnetic needle is reduced by 10 to 15% by weight. Just set the ratio.
また、近年、ｐｔ金合金組成において、 Ｐｔｌ。、−
Ｃｏ、、％のものに硬度を付与し、研磨効果又は強度を
改善する傾向かあり、この場合、Ｐｔ５ｏお−ＣＯ＋ｏ
＊。In addition, in recent years, in pt gold alloy composition, Ptl. ,−
There is a tendency to impart hardness to Co,.% and improve the polishing effect or strength; in this case, Pt5o or -CO+o
*.
Ｐｊｓｏ＊−Ｃｏ５％−Ｎｉ５ｍのように被研磨体自体
が非磁性から強磁性となり、しかも磁性か一段と強くな
る傾向が著しい。この場合、強磁性針の混合割合が非磁
性針よりも極めて高いと、強磁性針と被研磨体とか磁力
により引き合い、からみあって、研磨効率か低下するか
、非磁性針の混合割合を強磁性針よりも高くすると、非
磁性針は被研磨体と引き合うこともないので研磨効果は
著しく向上する。As in the case of Pjso*-Co5%-Ni5m, the polished object itself changes from non-magnetic to ferromagnetic, and there is a remarkable tendency for the magnetism to become even stronger. In this case, if the mixing ratio of ferromagnetic needles is extremely higher than that of non-magnetic needles, the ferromagnetic needles and the object to be polished will attract each other due to magnetic force and become entangled, reducing the polishing efficiency. If the height is higher than the needle, the non-magnetic needle will not attract the object to be polished, so the polishing effect will be significantly improved.
このように、本発明ては、強磁性針と非磁性針とかそれ
ぞれランダム運動することにより被研磨体に衝突して研
磨を行うことができるが、被研磨体の磁性により強磁性
針と非磁性針との混合割合を設定するようにしてもよい
。As described above, in the present invention, the ferromagnetic needle and the non-magnetic needle can perform random movement to collide with the object to be polished, but due to the magnetism of the object, the ferromagnetic needle and the non-magnetic needle The mixing ratio with the needle may also be set.
さらに、実際の研磨においては、被研磨体の仕上がり状
態を確認しながら研磨時間などを設定すればよい、この
場合、マグネットミキサーを停止して被研磨体を取り出
すのは極めて容易な操作であるから、特に支障はなく、
研磨処理中は、適宜な蓋材で処理容器を覆って強磁性針
及び非磁性針の飛び出しを防止するようにするだけで、
その他の操作は全く必要としない。Furthermore, during actual polishing, you only need to set the polishing time while checking the finished state of the object to be polished.In this case, it is an extremely easy operation to stop the magnetic mixer and take out the object to be polished. , there are no particular problems,
During the polishing process, simply cover the processing container with an appropriate lid to prevent the ferromagnetic needles and non-magnetic needles from flying out.
No other operations are required.
尚、本発明の磁気研磨方法は、容器中に被研磨体、強磁
性針、非磁性針以外には何も入れない乾式法で行っても
よいし、水或いは有機溶媒を入れて湿式法で行うように
してもよく、界面活性剤や防錆剤などの添加剤を入れる
ようにしてもよい
（実施例〉
以下に示す実施例では、容器中に水と界面活性剤を添加
した状態における研磨について示した。The magnetic polishing method of the present invention may be carried out by a dry method in which nothing is placed in a container other than the object to be polished, a ferromagnetic needle, and a non-magnetic needle, or by a wet method by placing water or an organic solvent in the container. (Example) In the example shown below, polishing is performed in a state where water and a surfactant are added to the container. The following was shown.
実施例１〜７
ヤマト科学■製マグミキサー１１Ｄ ４１を使用し、第
１表に示す各種の処理条件において研磨を行った。Examples 1 to 7 Polishing was performed under various processing conditions shown in Table 1 using a Mag Mixer 11D 41 manufactured by Yamato Kagaku ■.
その結果は、第１表にまとめた。The results are summarized in Table 1.
尚、研磨処理中は、強磁性針及び非磁性針の激しいラン
ダム運動が観察され、これらの容器外への飛び出しを防
ぐため容器の上方を蓋材て覆って放置した。Incidentally, during the polishing process, violent random movements of the ferromagnetic needles and non-magnetic needles were observed, and in order to prevent these needles from flying out of the container, the top of the container was covered with a lid material and left as it was.
第１表より明らかなように、本発明の研磨方法は、極め
て優れた研磨を行うことかできる。As is clear from Table 1, the polishing method of the present invention can perform extremely excellent polishing.
また、その貴金属損耗率を測定したところ、僅か０．５
％前後であった。In addition, when we measured the precious metal loss rate, it was only 0.5
It was around %.
〜〈発明の効果〉
以上説明したように本発明の磁気研磨方法によれば、複
雑な形状で微細部分を有する被研磨体についても極めて
簡単な操作て優れた研磨を行うことができる。~ <Effects of the Invention> As explained above, according to the magnetic polishing method of the present invention, it is possible to perform excellent polishing even on a polished object having a complicated shape and minute portions with an extremely simple operation.
また、本発明における研磨は、形状破壊をもたらすこと
がなく、その貴金属損耗率も少なく、経済性にも優れて
いるものである。Furthermore, the polishing in the present invention does not cause shape destruction, has a low loss rate of precious metals, and is excellent in economical efficiency.
さらに、本発明の磁気研磨方法は、大型或いは特殊な処
理装置を使用することなく、例えば汎用のマグネットミ
キサーとビーカーたけて処理装置を構成することができ
るので、安価で極めて実用性の高い研磨方法である。Furthermore, the magnetic polishing method of the present invention does not require the use of large-scale or special processing equipment, and can be configured by, for example, a general-purpose magnetic mixer and a stack of beakers, making it an inexpensive and highly practical polishing method. It is.
また、研磨処理中は、全く人手による操作を必要としな
いのて、経済的費用を極めて軽減することができるし、
研磨時間も従来に比較して短縮することかできるし、人
手による研磨に比較して研磨品質を安定化することもて
きる。Additionally, no manual operations are required during the polishing process, which can significantly reduce economic costs.
The polishing time can also be shortened compared to conventional methods, and the polishing quality can be stabilized compared to manual polishing.
Claims (1)
して高速の回転磁場を作用することにより、強磁性針及
び非磁性針を高速でランダム運動させることを特徴とす
る磁気研磨方法。Magnetism characterized by mixing ferromagnetic needles and non-magnetic needles in a container containing the object to be polished and applying a high-speed rotating magnetic field to cause the ferromagnetic needles and non-magnetic needles to move randomly at high speed. Polishing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15999290A JPH0453668A (en) | 1990-06-20 | 1990-06-20 | Magnetic polishing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15999290A JPH0453668A (en) | 1990-06-20 | 1990-06-20 | Magnetic polishing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0453668A true JPH0453668A (en) | 1992-02-21 |
Family
ID=15705639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15999290A Pending JPH0453668A (en) | 1990-06-20 | 1990-06-20 | Magnetic polishing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0453668A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110202458A (en) * | 2019-07-11 | 2019-09-06 | 辽宁科技大学 | Needle magnetic grinder for long hole rim buildup |
| CN121132454A (en) * | 2025-11-19 | 2025-12-16 | 江西华派光电科技有限公司 | A magnetorheological polishing device for camera lenses based on optimized magnetic circuit layout |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57501832A (en) * | 1980-11-28 | 1982-10-14 |
-
1990
- 1990-06-20 JP JP15999290A patent/JPH0453668A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57501832A (en) * | 1980-11-28 | 1982-10-14 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110202458A (en) * | 2019-07-11 | 2019-09-06 | 辽宁科技大学 | Needle magnetic grinder for long hole rim buildup |
| CN110202458B (en) * | 2019-07-11 | 2024-04-09 | 辽宁科技大学 | Magnetic needle magnetic grinding device for long plate hole edge tumor accumulation |
| CN121132454A (en) * | 2025-11-19 | 2025-12-16 | 江西华派光电科技有限公司 | A magnetorheological polishing device for camera lenses based on optimized magnetic circuit layout |
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