JPH0540464Y2 - - Google Patents
Info
- Publication number
- JPH0540464Y2 JPH0540464Y2 JP3866586U JP3866586U JPH0540464Y2 JP H0540464 Y2 JPH0540464 Y2 JP H0540464Y2 JP 3866586 U JP3866586 U JP 3866586U JP 3866586 U JP3866586 U JP 3866586U JP H0540464 Y2 JPH0540464 Y2 JP H0540464Y2
- Authority
- JP
- Japan
- Prior art keywords
- sample bag
- base
- sample
- magnet
- magnetic powder
- 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
Links
- 239000006247 magnetic powder Substances 0.000 claims description 15
- 230000005389 magnetism Effects 0.000 claims description 11
- 238000011156 evaluation Methods 0.000 claims description 9
- 229910001566 austenite Inorganic materials 0.000 description 13
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 6
- 229910000859 α-Fe Inorganic materials 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Landscapes
- Measuring Magnetic Variables (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は磁性を帯びた粉末試料の磁性度を簡単
に評価することができる評価装置に関するもので
ある。[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to an evaluation device that can easily evaluate the degree of magnetism of a magnetic powder sample.
（従来の技術）
単結晶フエライトなど、フエライト原料として
使用される酸化鉄（Fe2O3）には種々のものがあ
るが、一般的には、磁性を有するγ−Fe2O3もし
くは、非磁性のα−Fe2O3あるいは両者の混合物
などが使用される。(Prior art) There are various types of iron oxide (Fe 2 O 3 ) used as raw materials for ferrite, such as single crystal ferrite, but generally γ-Fe 2 O 3 with magnetism or non-magnetic iron oxide (Fe 2 O 3 ) is used. Magnetic α-Fe 2 O 3 or a mixture of both is used.
本願人の発明になる、固有反応によるフエライ
ト単結晶の製造法（特公昭61−1391号）において
は、出発原料たる酸化鉄の特性、とりわけ、α−
Fe2O3とγ−Fe2O3の混合比率が、品質、性能に
影響を及ぼす、重要な意味あいを持つている。従
来はこの混合比率をＸ線装置により測定してい
た。 In the method for producing ferrite single crystals by an inherent reaction (Japanese Patent Publication No. 1391/1983), which is the invention of the present applicant, the characteristics of iron oxide as a starting material, especially α-
The mixing ratio of Fe 2 O 3 and γ-Fe 2 O 3 has important implications, affecting quality and performance. Conventionally, this mixing ratio was measured using an X-ray device.
（考案が解決しようとする問題点）
しかしながら、上述したＸ線装置による測定に
おいては、装置が高価であると共に測定時間が長
くかかる欠点があつた。(Problems to be Solved by the Invention) However, in the measurement using the above-mentioned X-ray device, there are drawbacks that the device is expensive and the measurement time is long.
本願考案者は磁性を有する粉末である、γ−
Fe2O3と、非磁性の粉末であるα−Fe2O3の混合
物は、その磁性度と、その中に含まれるγ−Fe2
O3の量との間に、一定の相関関係があることを
発見した。 The inventor of this application has developed a magnetic powder, γ-
A mixture of Fe 2 O 3 and α-Fe 2 O 3 , which is a non-magnetic powder, is characterized by its magnetic degree and the γ-Fe 2 contained therein.
It was discovered that there is a certain correlation between the amount of O3 .
本考案の目的は上記の発見をもとに、磁性を帯
びた粉末特にγ−Fe2O3の含有量を簡便に測定す
ることのできる評価装置を提供しようとするもの
である。 The purpose of the present invention is to provide an evaluation device that can easily measure the content of magnetic powder, especially γ-Fe 2 O 3 , based on the above discovery.
（問題点を解決するための手段）
本考案の磁性を帯びた粉末の評価装置は、メジ
ヤーをその長手方向に配置した基台と、基台上の
メジヤーの一端部に立設した支柱と、支柱の先端
につり下げられた試料袋と、基台上支柱から所定
距離を摺動可能な磁石部材とからなり、所定量の
磁性を帯びた粉末試料を入れた試料袋を支柱の先
端からつり下げた状態で磁石部材と接触させた
後、磁石部材を基台上支柱から離れる方向に摺動
させて、試料袋が磁石部材から離れる距離をもつ
て試料の磁性度を評価することを特徴とするもの
である。(Means for Solving the Problems) The magnetic powder evaluation device of the present invention includes a base on which the measurer is arranged in the longitudinal direction thereof, a column erected at one end of the measurer on the base, It consists of a sample bag suspended from the tip of the column and a magnetic member that can slide a predetermined distance from the column on the base.The sample bag containing a predetermined amount of magnetic powder sample is suspended from the tip of the column. The sample bag is brought into contact with the magnet member in a lowered state, and then the magnet member is slid in a direction away from the support on the base, and the magneticity of the sample is evaluated based on the distance at which the sample bag leaves the magnet member. It is something to do.
（作用）
上述した構成において、試料袋中の磁性を帯び
た粉体はその磁性度に応じて磁石部材に対する吸
引力が異なる。すなわち、磁性度が大きいほど吸
引力が大きいため、試料袋と磁石部材とを吸着さ
せた状態で磁石部材を基台上支柱から離れる方向
に摺動させると、磁性度に応じて試料袋が磁石部
材から離れる位置が異なることになる。そこで、
試料袋が磁石部材から離れた位置の摺動開始位置
からの距離を、基台に設けたメジヤーで測定すれ
ば、その距離の大小で磁性度を評価、すなわち磁
性度が大きいほど距離が長く、磁性度が小さいほ
ど距離が短いという評価をすることができる。(Function) In the above-described configuration, the magnetic powder in the sample bag has a different attraction force toward the magnet member depending on its degree of magnetism. In other words, the higher the magnetism, the greater the attraction force. Therefore, when the sample bag and the magnet member are attracted to each other and the magnet member is slid in the direction away from the support on the base, the sample bag will be attracted to the magnet according to the magnetism. The position away from the member will be different. Therefore,
If you measure the distance from the sliding start position at which the sample bag is away from the magnet member with a measurer installed on the base, the degree of magnetism can be evaluated based on the magnitude of that distance. It can be evaluated that the smaller the magnetism, the shorter the distance.
このとき、例えばγ−Fe2O3含有量と上述した
距離との関係を予じめ測定しておけば、おおよそ
のγ−Fe2O3含有量を推定することができる。 At this time, for example, if the relationship between the γ-Fe 2 O 3 content and the above-mentioned distance is measured in advance, the approximate γ-Fe 2 O 3 content can be estimated.
（実施例）
第１図ａ，ｂは本考案の評価装置の一実施例を
示す正面図および平面図である。本実施例におい
ては、好ましくはアクリル性の基台１の一端上に
支柱２を立設し、支柱２の先端にアーム３を設け
てこのアーム３に可撓性の系等よりなるつり下げ
部材４を装着する。つり下け部材４の先端には、
試料袋５をつり下げ部材４にセツトするためのチ
ヤツク６を設けている。チヤツク６としては試料
袋５を挟持できるものならば何でも使用可能であ
り、例えばダブリクリツプ等を使用すると好適で
ある。また、基台１上にはその長手方向にメジヤ
ー７を配置している。メジヤー７は、その一端を
試料袋５をつり下げた静止状態の位置が測定でき
る位置に設ける必要があり、その長さは支柱２の
高さに応じて設定すればよい。磁石部材８は好ま
しくはアクリル等の基体１に対して摺動しやすい
材料から構成し、その試料袋５に対向する面に例
えば厚さ３mm、直径20mmの円柱状の3000〜4000G
の永久磁石９を設けて構成する。(Example) FIGS. 1a and 1b are a front view and a plan view showing an example of the evaluation device of the present invention. In this embodiment, a support 2 is erected on one end of a base 1 preferably made of acrylic, an arm 3 is provided at the tip of the support 2, and a hanging member made of a flexible system or the like is attached to the arm 3. Attach 4. At the tip of the hanging member 4,
A chuck 6 is provided for setting the sample bag 5 on the hanging member 4. Any chuck 6 can be used as long as it can hold the sample bag 5; for example, it is preferable to use a double clip or the like. Further, a measurer 7 is arranged on the base 1 in the longitudinal direction thereof. The measurer 7 must be provided at a position where one end thereof can measure the suspended position of the sample bag 5 in a stationary state, and its length may be set according to the height of the support column 2. The magnet member 8 is preferably made of a material that easily slides on the base 1, such as acrylic, and has a 3000 to 4000 G magnet on the surface facing the sample bag 5, for example, in a cylindrical shape with a thickness of 3 mm and a diameter of 20 mm.
A permanent magnet 9 is provided.
次に、上述した構成に本考案の磁性を帯びた粉
末の評価装置において、実際に粉末の評価を実施
する一方法を説明する。まず、試料袋５内に測定
すべき磁性を帯びた粉末を10ｇ入れて、チヤツク
６によりつり下げ部材４に装着する。この状態で
試料袋５の位置をメジヤー７に読み取る。次に、
この試料袋５に対して磁石部材８を接触させ吸着
させた後、図中ａ方向に磁石部材８を人手又は自
動で摺動させる。そして、試料袋５が磁石部材８
から離れた位置を読みとり、予じめ読み取つた始
点の位置との差を距離として求める。その後、求
めた距離に応じて予じめ作成しておいたγ−Fe2
O3含有量、磁性度等とのグラフからγ−Fe2O3含
有量、磁性度等を推定して評価することができ
る。なお、測定すべき磁性を帯びた粉末の磁性度
が高い場合には、試料に非磁性の粉末を混合して
測定すれば、上述した方法と同様の方法により粉
末の評価をすることができる。 Next, a method for actually evaluating powder using the magnetic powder evaluation apparatus of the present invention having the above-described configuration will be described. First, 10 g of magnetic powder to be measured is placed in the sample bag 5 and attached to the hanging member 4 using the chuck 6. In this state, the position of the sample bag 5 is read by the measurer 7. next,
After the magnet member 8 is brought into contact with and attracted to the sample bag 5, the magnet member 8 is slid manually or automatically in the direction a in the figure. Then, the sample bag 5 is attached to the magnet member 8.
Read the position away from the starting point and calculate the difference from the previously read starting point position as the distance. After that, γ-Fe 2 created in advance according to the determined distance
γ-Fe 2 O 3 content, magnetism, etc. can be estimated and evaluated from a graph of O 3 content, magnetism, etc. Note that if the magnetic powder to be measured has a high degree of magnetism, the powder can be evaluated by the same method as described above by mixing non-magnetic powder with the sample and performing the measurement.
実際にγ−Fe2O3の含有量がわかつている粉末
に対して、上述した評価装置により距離を測定し
たところ第２図に示す結果が得られた。なお、こ
のとき使用した試料は10ｇ、磁石の形状は厚さ３
mm、直径20mmで3500Gの永久磁石を使用した。第
２図から明らかなように、距離とγ−Fe2Ｏ含有
量はリニアな関係にあり、距離からγ−Fe2O3含
有量を推定することが可能であることがわかつ
た。 When the distance was actually measured using the above-mentioned evaluation device for a powder whose content of γ-Fe 2 O 3 was known, the results shown in FIG. 2 were obtained. The sample used at this time was 10 g, and the shape of the magnet was 3 mm thick.
mm, a 3500G permanent magnet with a diameter of 20mm was used. As is clear from FIG. 2, there is a linear relationship between distance and γ-Fe 2 O content, and it was found that it is possible to estimate γ-Fe 2 O 3 content from distance.
本考案は上述した実施例にのみ限定されるもの
ではなく、幾多の変形、変更が可能である。例え
ば、上述した実施例では磁石部材中に永久磁石を
設けたが、電磁石等の他の手段を使うこともでき
る。 The present invention is not limited to the embodiments described above, and can be modified and modified in many ways. For example, although in the embodiments described above a permanent magnet is provided in the magnet member, other means such as an electromagnet may also be used.
（考案の効果）
以上詳細に説明したところから明らかなよう
に、本考案の磁性を帯びた粉末の評価装置によれ
ば、簡単な構成かつ短時間に、磁性を帯びた粉末
特にγ−Fe2O3の含有量を評価することができ
る。(Effects of the invention) As is clear from the above detailed explanation, the magnetic powder evaluation device of the present invention can evaluate magnetic powder, especially γ-Fe 2 , with a simple configuration and in a short time. O 3 content can be evaluated.
第１図ａ，ｂは本考案の評価装置の一実施例を
示す正面図および平面図、第２図はγ−Fe2O3の
含有量と測定距離との関係を示すグラフである。
１……基台、２……支柱、３……アーム、４…
…つり下げ部材、５……試料袋、６……チヤツ
ク、７……メジヤー、８……磁石部材、９……永
久磁石。
1A and 1B are a front view and a plan view showing an embodiment of the evaluation device of the present invention, and FIG. 2 is a graph showing the relationship between the content of γ-Fe 2 O 3 and the measurement distance. 1... Base, 2... Support, 3... Arm, 4...
...Hanging member, 5...Sample bag, 6...Chuck, 7...Measure, 8...Magnet member, 9...Permanent magnet.
Claims (1)
台上のメジヤーの一端部に立設した支柱と、支柱
の先端につり下げられた試料袋と、基台上支柱か
ら所定距離を摺動可能な磁石部材とからなり、所
定量の磁性を帯びた粉末試料を入れた試料袋を支
柱の先端からつり下げた状態で磁石部材と接触さ
せた後、磁石部材を基台上支柱から離れる方向に
摺動させて、試料袋が磁石部材から離れる距離を
もつて試料の磁性度を評価することを特徴とする
磁性を帯びた粉末の評価装置。 A base on which the measurer is arranged in its longitudinal direction, a support that stands on one end of the measurer on the base, a sample bag suspended from the tip of the support, and the measurer can be slid a predetermined distance from the support on the base. A sample bag containing a predetermined amount of magnetic powder sample is suspended from the tip of the column and brought into contact with the magnet, and then the magnet is moved away from the column on the base. 1. An evaluation device for magnetic powder, characterized in that the magnetism of a sample is evaluated based on the distance at which the sample bag is separated from a magnet member by sliding the sample bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3866586U JPH0540464Y2 (en) | 1986-03-17 | 1986-03-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3866586U JPH0540464Y2 (en) | 1986-03-17 | 1986-03-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62150682U JPS62150682U (en) | 1987-09-24 |
| JPH0540464Y2 true JPH0540464Y2 (en) | 1993-10-14 |
Family
ID=30851117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3866586U Expired - Lifetime JPH0540464Y2 (en) | 1986-03-17 | 1986-03-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0540464Y2 (en) |
-
1986
- 1986-03-17 JP JP3866586U patent/JPH0540464Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62150682U (en) | 1987-09-24 |
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