JPH0198957A - Method and device for measuring mixing degree of mixed powder - Google Patents
Method and device for measuring mixing degree of mixed powderInfo
- Publication number
- JPH0198957A JPH0198957A JP62256267A JP25626787A JPH0198957A JP H0198957 A JPH0198957 A JP H0198957A JP 62256267 A JP62256267 A JP 62256267A JP 25626787 A JP25626787 A JP 25626787A JP H0198957 A JPH0198957 A JP H0198957A
- Authority
- JP
- Japan
- Prior art keywords
- sample
- mixed
- electromagnetic core
- powder
- mixed 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.)
- Granted
Links
- 239000011812 mixed powder Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims description 8
- 239000000843 powder Substances 0.000 claims abstract description 22
- 238000004804 winding Methods 0.000 claims description 15
- 230000005294 ferromagnetic effect Effects 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 abstract description 12
- 230000005291 magnetic effect Effects 0.000 abstract description 11
- 230000004907 flux Effects 0.000 abstract description 2
- 238000005070 sampling Methods 0.000 abstract description 2
- 239000003302 ferromagnetic material Substances 0.000 abstract 5
- 239000000203 mixture Substances 0.000 abstract 1
- 238000004458 analytical method Methods 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000691 measurement method Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000006103 coloring component Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 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
- 239000010931 gold Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、混合粉体の混合度測定方法とその装置に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method and apparatus for measuring the degree of mixing of mixed powder.
混合粉体においては、製品の均一性１品質の安定をはか
るために、原料粉の混合度に高い均一性全要求されるこ
とが多い。このような均一性を重視する場合には、その
混合度をなにによって判断するかが問題となる。In the case of mixed powders, in order to ensure product uniformity and quality stability, a high level of uniformity is often required in the degree of mixing of raw material powders. When placing importance on such uniformity, the question is how to judge the degree of mixing.
簡単な方法として１着色粉を混入して１色の均一性をも
って判定し、その目的を達成できる場合もあるが２色の
濃い混合粉体や着色成分をきらう混合粉体では、その目
的ケ達成できず、全ての混合粉体に採用することはでき
ない。A simple method is to mix one colored powder and judge the uniformity of one color, and in some cases the objective can be achieved, but with a dark mixed powder of two colors or a mixed powder that avoids coloring components, the objective cannot be achieved. Therefore, it cannot be used for all mixed powders.
従来膜も正確な測定方法として混合粉体母集団から多数
のサンプルを採り、ある着目成分につき酸／アルカリ処
理ケして溶解し、それらをキレート滴定法などにより湿
式分析する方法などの化学的に分析する方法、あるいは
機器分析により多数のサンプルの多成分の含量を測定す
る方法がある。Conventional membranes have also been used chemically as an accurate measurement method, such as taking a large number of samples from a mixed powder population, dissolving them with acid/alkali treatment for a certain component of interest, and then wet-analyzing them using chelate titration method. There are methods to analyze the content of multiple components in a large number of samples, or to measure the contents of multiple components in a large number of samples by instrumental analysis.
上記従来の測定方法のうち、化学分析によるものは、熟
練と分析時間を要するという問題点があり２機器分析に
よるものは、その測定装置が一般に高価なために１分析
コストが高くなるという問題点があった。しかも、と扛
らの測定方法では。Among the conventional measurement methods mentioned above, those using chemical analysis have the problem of requiring skill and time for analysis, and those using two-instrument analysis have the problem that the cost for each analysis is high because the measuring equipment is generally expensive. was there. Moreover, with Toran et al.'s measurement method.
分析に要する時間が長くなるので、−足の時間内で測定
できるサンプル数が限られ、かつ１同の分析におけるサ
ンプリング量が１２以下というように少量に限られるの
で、大きな母集団、即ち混合量あるいは分散総量が大き
い母集団の場合には。Because the time required for analysis is long, the number of samples that can be measured within a period of time is limited, and the amount of sampling in one analysis is limited to a small number of 12 or less, so it is difficult to analyze a large population, i.e., a mixed amount. Or in the case of a population with a large amount of variance.
正確な測定結果が得ら扛ないし、サンプルは試験のため
に消費さ扛るという問題点もあった。There were also problems in that accurate measurement results could not be obtained and the samples were consumed for testing.
本発明は、混合粉体に本来的に包まれている強磁性体粉
末、あるいは粉体の混合過程でわざと混入させた強磁性
体粉末に着目し、この強磁性体粉末の濃度ケミ磁的に測
定することにより、簡単。The present invention focuses on the ferromagnetic powder that is inherently wrapped in the mixed powder or the ferromagnetic powder that is intentionally mixed in during the powder mixing process, and the concentration of the ferromagnetic powder is chemmagnetically controlled. Easy by measuring.
迅速かつサンプルを破壊することなしに混合粉体の混合
度全正確に測定できる方法とその装置？提供しようとす
るものである。A method and device that can quickly and accurately measure the degree of mixing of mixed powders without destroying the sample? This is what we are trying to provide.
強磁性体粉末１例えば鉄、コバルト、ニッケル、フェラ
イトなどの粉末が本来的に混入している混合粉体母集団
、あるいは同粉末をわざと混入させた混合粉体母集団か
ら一定量金採り、それを−定の形状に成形してサンプル
全作シ、このサンプルをギャップ付き電磁コアのギャッ
プ部へ導入して、上記電磁コアの２次出力の変化全記録
して。Ferromagnetic Powder 1 For example, a certain amount of gold is extracted from a mixed powder population in which iron, cobalt, nickel, ferrite, etc. powder is originally mixed, or a mixed powder population in which the same powder is intentionally mixed. After forming a sample into a certain shape, the sample was introduced into the gap of an electromagnetic core with a gap, and all changes in the secondary output of the electromagnetic core were recorded.
上記サンプルにおける強磁性体粉末の分散度を測定する
。The degree of dispersion of the ferromagnetic powder in the above sample is measured.
次に、上記混合粉体の混合度測定方法の実施に使用する
装置全図面にもとづいて説明すると、（１）は本体、（
２）は本体（１）に固定したギャップ付き電磁コアで、
１次巻線（３）と２次巻線（４）とを巻き付けである。Next, an explanation will be given based on all the drawings of the apparatus used to carry out the method for measuring the degree of mixing of mixed powder. (1) is the main body, (
2) is an electromagnetic core with a gap fixed to the main body (1),
The primary winding (3) and the secondary winding (4) are wound.
（５）は１次巻線（３）に接続した交流の足電流発生器
、（６）は２次巻線（４）に接続した測定器で、２次巻
線（４）の出カケ増巾する増巾器（７）と、増巾器（７
）の出力を整流する整流器（８）と、整流器（８）の出
力と基準電圧設定器（９）の出力とを比較する比較器α
呻と。(5) is an AC foot current generator connected to the primary winding (3), and (6) is a measuring device connected to the secondary winding (4), which increases the output of the secondary winding (4). Width widening device (7) and widening device (7)
), and a comparator α that compares the output of the rectifier (8) with the output of the reference voltage setter (9).
With a groan.
比較器ＯＧの出力で動作する記録器住υとからなる。It consists of a recorder and a recorder operated by the output of the comparator OG.
α２はサンプルｅｌｌ電磁コア（２）のギャップ部Ｉへ
搬送するように配設したベルトコンベヤなどの搬送装置
で、サンプル（１３１がギャップ部ａ４に到達したとこ
ろで停止するように操作してもよく、サンプル（１３が
ギャップ部ａ４１”＋一定の速度で通過するように操作
してもよい。（１９はギャップ部←力内でサンプルα３
の高さ全調整する調整台である。α2 is a conveyance device such as a belt conveyor arranged to convey the sample to the gap part I of the electromagnetic core (2), and may be operated so as to stop when the sample (131) reaches the gap part A4. The sample (13 may be operated so that it passes at the gap part a41" + a constant speed. (19 is the gap part ← sample α3 within the force.
It is an adjustment table that allows you to fully adjust the height.
基準電圧設定器（９１’（ｒ、！磁コア（２）の２次出
力電圧が０になるように調整してから、搬送装置αりで
サンプルα３會ギヤツプ部住４へ搬送する。するとサン
プルα３に混入している強磁性体粉末の密度によことに
より磁路の磁気抵抗の変化にともない磁束量が変化し、
その変化に対応して２次出力電圧が増巾器（７）、整流
器（８）、比較器（１１経て記録器圓に出力さｎる。な
お、サンプル（１３１？ｒギャップ部Ｉで停止さぞむげ
、サンプル（１′５のうち電磁コア（２）と対向する部
分の強磁性体粉末の分散度會測足できるし、サンプルα
３１’に棒状に成形し、七ｆｉｌギャップ（１４１に一
足の速度で通過させｎは、サンプルαＪの軸方向におけ
る強磁性体粉末の配合変化、すなわち分散度ケリニアに
測定できる。After adjusting the secondary output voltage of the reference voltage setting device (91'(r,!) of the magnetic core (2) to 0, the sample is transported to the sample α3 meeting gap section 4 using the transporting device α.Then, the sample Depending on the density of the ferromagnetic powder mixed in α3, the amount of magnetic flux changes as the magnetic resistance of the magnetic path changes.
In response to the change, the secondary output voltage is output to the recorder circle through the amplifier (7), the rectifier (8), and the comparator (11). However, it is possible to measure the degree of dispersion of the ferromagnetic powder in the part of the sample (1'5) facing the electromagnetic core (2), and the sample α
31' into a rod shape, and passed through a seven-fil gap (141) at a speed of one foot.
サンプルα〜は、混合粉体の一定量全プレス装置などで
一定の形状に圧縮成形したものを用いてもよく、混合粉
体の一足量ケプラスチックその他の非磁性体で一定の形
状に成形さｎた容器に入れたものを用いてもよい。また
サンプル０は、ギャップ部Ｉへ搬送するほか、サンプル
（Ｉｎ固定し、電磁コア（２）ヲサンプルα４に向けて
移動さぜることによシ、ギャップ部〔４にサンプル（Ｉ
Ｉ］入恣ぜることもある。なおサンプルα３に円柱形に
成形さｎたものを使用する場合には、′＃Ｌ磁コア（２
）にギャップ部Ｉの両側面ａｓ＋、（１ｔｉが円弧状に
成形されたものケ使用するというようにギャップ部ａ４
Ｊ’ｔサンプルαＪの断面形状に合せる。整流器（８）
は、半波整流回路と平滑回路全組合せたものを用いても
よく、余波整流し、ピーク値を求める回路ケ用いてもよ
い。Samples α~ may be made by compression molding a certain amount of mixed powder into a certain shape using a press machine, or by molding a certain amount of mixed powder into a certain shape using plastic or other non-magnetic material. It may also be used in a sealed container. In addition to transporting the sample 0 to the gap part I, the sample (I) is fixed to the gap part [4] by moving the electromagnetic core (2) toward the sample α4.
I] Sometimes I get caught. In addition, when using sample α3 molded into a cylindrical shape, use the '#L magnetic core (2
), both sides of the gap part I as+, (1ti is formed into an arc shape), so that the gap part a4 is
Match the cross-sectional shape of J't sample αJ. Rectifier (8)
Alternatively, a combination of a half-wave rectifier circuit and a smoothing circuit may be used, or a circuit for rectifying the aftermath and determining the peak value may be used.
電磁コア（２）の磁力線住っは、第５図示のようにその
両側へふくらむが、第６図示のように電磁コア（２）の
近くで出力が相殺される補助巻線（１１設ければ、その
ふくらみを防ぎ、測定の精度と感度を上げることができ
、サンプルの断層における分散変音よシ正確に測定でき
る。The magnetic field lines of the electromagnetic core (2) swell to both sides as shown in Figure 5, but if an auxiliary winding (11 is provided) whose output is canceled out near the electromagnetic core (2) as shown in Figure 6 , it is possible to prevent the bulge, increase the accuracy and sensitivity of the measurement, and accurately measure the dispersion of sound in the fault of the sample.
定電流発生器（５）から１次巻線（３）に２００ｍＡの
交流電流が流さｎている状態において、塩素酸ナトリウ
ムに鉄粉を混合し、かつ円柱状に成形したサンプルα３
全ギヤツプ部（１４）へ通過させた場合の測足例金示す
と、第７図のようになり、２次出力電圧が急激に高くな
っている点Ｐ付近に鉄粉が集中していることがわかシ、
ま７’Ｃ２次出力が若干低下している点Ｑ付近では、鉄
粉が少ないことがわかる〔発明の効果〕
本発明は、叙上のように構成したから１分析に要する時
間を著しく短縮でき、一定の時間内で多数のサンプルの
測定ができ、またサンプルに電磁コアのギャップ部へ搬
入しうる形状に成形されたもの全使用するので、１回に
多量のサンプルの測定ができ、しかも混合粉体の混合度
、あるいは分散度を簡単かつ正確に測定でき、サンプル
を試験の几めに消費しなくて済むという利点を有し１次
のような用途に使用できる。Sample α3 was prepared by mixing iron powder with sodium chlorate and forming it into a cylindrical shape while an alternating current of 200 mA was flowing from the constant current generator (5) to the primary winding (3).
An example of foot measurement when passing through all the gap parts (14) is shown in Figure 7, which shows that iron powder is concentrated near point P where the secondary output voltage suddenly increases. Gawakashi,
It can be seen that there is less iron powder near point Q where the secondary output of 7'C is slightly reduced. [Effects of the Invention] Since the present invention is configured as described above, the time required for one analysis can be significantly shortened. , it is possible to measure a large number of samples within a certain amount of time, and since all samples are molded into a shape that can be carried into the gap of the electromagnetic core, it is possible to measure a large number of samples at once, and it is easy to mix them. It has the advantage that the degree of mixing or dispersion of powder can be easily and accurately measured, and there is no need to consume samples for testing, and can be used for the following purposes.
（１）粉体混合機の性能評価２例えば粉体混合機を設計
するための基礎データの収集、粉体混合機全使用する際
の混合粉体量１時間１回転数などの最適条件の収集。(1) Performance evaluation of powder mixer 2 For example, collecting basic data for designing a powder mixer, collecting optimal conditions such as amount of mixed powder per hour and number of revolutions when using all powder mixers .
（２）混合粉体の分散度の確認１例えばサンプル１個の
内部での分散度、サンプル毎の分散度、製品の性能１品
質に影響會及はさない程度に強磁性体粉末全混入した状
態での製品の分散度などめチエツク。(2) Checking the degree of dispersion of the mixed powder 1 For example, the degree of dispersion within one sample, the degree of dispersion for each sample, and the performance of the product 1 Confirmation of the degree of dispersion of the mixed powder. Check the degree of dispersion of the product.
（３） ファインセラミックス、プラスチック、ゴム
など各種混合粉体の測定への応用。(3) Application to measurement of various mixed powders such as fine ceramics, plastics, and rubber.
第１図は本発明装置’に概略的に示す平面図、第２図は
第１図の端面図、第３図は電磁コアとその接続回路ケ示
す図、第４図は測足回路ケ示すブロック図、第５図は電
磁コアの磁力線がふくらむ状態全説明する図、第６図は
磁力線のふくらみ防ぐ構成を示す図、第７図は本発明装
置による測定結果の一例會示すグラフである。
（１）・・・本体、（２）・・・ギャップ付き電磁コア
、（３）・・・１次巻線、（４）・・・２次巻線、（５
）・・・定電流発生器、（６）・・・測定器、（７）・
・・増巾器、（８）・・・整流器、（９）・・・基準電
圧設定器、 （１１・・・比較器、（ｌυ・・・記録器
、（１４・・・搬送装置。
（１３・・・サンプル、（１４・・・ギャップ部、 （
１８・・・補助巻線。
第４図
ン
第５図 第６図
ワ
第７図
出力（ｎＬＶ ）鉄粉濃度Fig. 1 is a plan view schematically showing the device of the present invention, Fig. 2 is an end view of Fig. 1, Fig. 3 is a diagram showing the electromagnetic core and its connecting circuit, and Fig. 4 is a diagram showing the foot measuring circuit. FIG. 5 is a block diagram illustrating the state in which the lines of magnetic force of the electromagnetic core swell, FIG. 6 is a diagram showing a configuration for preventing the lines of magnetic force from bulging, and FIG. 7 is a graph showing an example of measurement results by the apparatus of the present invention. (1) Main body, (2) Electromagnetic core with gap, (3) Primary winding, (4) Secondary winding, (5
)...constant current generator, (6)...measuring device, (7)...
...Amplifier, (8)...Rectifier, (9)...Reference voltage setter, (11...Comparator, (lυ...Recorder, (14)...Transport device. 13...Sample, (14...Gap part, (
18... Auxiliary winding. Figure 4 Figure 5 Figure 6 Figure 7 Output (nLV) Iron powder concentration
Claims (3)
量を採取し、それを一定の形状に成形してサンプルを作
り、このサンプルをギャップ付き電磁コアのギャップ部
へ導入して、上記電磁コアの２次出力の変化を記録する
ことを特徴とする混合粉体の混合度測定方法。(1) Collect a certain amount from a mixed powder population containing ferromagnetic powder, mold it into a certain shape to make a sample, introduce this sample into the gap part of the gapped electromagnetic core, A method for measuring the degree of mixing of mixed powder, characterized by recording changes in the secondary output of the electromagnetic core.
き付け、１次巻線には、定電流発生器を接続し、２次巻
線には、その２次出力電圧の変化を記録する測定器を接
続し、上記電磁コアのギャップ部には、サンプルを搬送
する搬送装置を配設してなる混合粉体の混合度測定装置
。(2) A primary winding and a secondary winding are wound around a gapped electromagnetic core, a constant current generator is connected to the primary winding, and a change in the secondary output voltage is connected to the secondary winding. An apparatus for measuring the degree of mixing of mixed powder, which is connected to a measuring device for recording, and a conveying device for conveying the sample is disposed in the gap of the electromagnetic core.
助巻線が設けられている特許請求の範囲第２項記載の混
合粉体の混合度測定装置。(3) The mixing degree measuring device for mixed powder according to claim 2, wherein an auxiliary winding whose output is offset is provided near the gap portion of the electromagnetic core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62256267A JP2651913B2 (en) | 1987-10-13 | 1987-10-13 | Mixing degree measurement device for mixed powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62256267A JP2651913B2 (en) | 1987-10-13 | 1987-10-13 | Mixing degree measurement device for mixed powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0198957A true JPH0198957A (en) | 1989-04-17 |
| JP2651913B2 JP2651913B2 (en) | 1997-09-10 |
Family
ID=17290273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62256267A Expired - Fee Related JP2651913B2 (en) | 1987-10-13 | 1987-10-13 | Mixing degree measurement device for mixed powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2651913B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008232706A (en) * | 2007-03-19 | 2008-10-02 | Hitachi Ltd | Density distribution measuring method for green compact and device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5770449A (en) * | 1980-10-22 | 1982-04-30 | Mazda Motor Corp | Measuring method for contents of cobalt in material powder |
| JPS60114766A (en) * | 1983-11-25 | 1985-06-21 | アイ・アール・テイ コーポレーシヨン | Method of measuring gadolinia content in nuclear fuel |
-
1987
- 1987-10-13 JP JP62256267A patent/JP2651913B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5770449A (en) * | 1980-10-22 | 1982-04-30 | Mazda Motor Corp | Measuring method for contents of cobalt in material powder |
| JPS60114766A (en) * | 1983-11-25 | 1985-06-21 | アイ・アール・テイ コーポレーシヨン | Method of measuring gadolinia content in nuclear fuel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008232706A (en) * | 2007-03-19 | 2008-10-02 | Hitachi Ltd | Density distribution measuring method for green compact and device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2651913B2 (en) | 1997-09-10 |
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