JPS60239666A - Apparatus for inspecting hardness of steel product by residual magnetism - Google Patents
Apparatus for inspecting hardness of steel product by residual magnetismInfo
- Publication number
- JPS60239666A JPS60239666A JP9718884A JP9718884A JPS60239666A JP S60239666 A JPS60239666 A JP S60239666A JP 9718884 A JP9718884 A JP 9718884A JP 9718884 A JP9718884 A JP 9718884A JP S60239666 A JPS60239666 A JP S60239666A
- Authority
- JP
- Japan
- Prior art keywords
- hardness
- residual
- value
- residual magnetism
- product
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/80—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating mechanical hardness, e.g. by investigating saturation or remanence of ferromagnetic material
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は検査装置に係り、特に被検査製品の残留磁気値
を硬度変換する鉄鋼製品の残留磁気による硬度検査装置
に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an inspection device, and more particularly to a hardness inspection device using residual magnetism for steel products, which converts the residual magnetism value of a product to be inspected into hardness.
近年鉄鋼製品の材質の安定化が強く要望されている。特
に自動車部品においては、高度の機械的性質をもち、自
動機による連続加工が宕易に行なわれなけれけならない
ため、均一な材質の製品が要求されている。In recent years, there has been a strong desire to stabilize the material quality of steel products. Particularly, automobile parts have high mechanical properties and must be easily continuously processed by automatic machines, so products with uniform materials are required.
無磁化の鉄鋼製品を直流磁化源により飽和する程度まで
磁化した後、磁化源による磁界の印加を停止して磁界の
強さを零に戻し、その後残留磁束を有する鉄鋼製品の残
留磁束を検出コイルに鎖交させて電圧を誘起させ、この
誘起電圧の状態から鉄鋼製品の硬度を判定する方法は、
鉄鋼製品の硬度と残留磁束つまり誘起電圧がほぼ比例の
関係にあり、硬度測定にきわめて便利であるためすでに
広く利用されている。After a non-magnetized steel product is magnetized to the extent of saturation by a DC magnetization source, the application of the magnetic field by the magnetization source is stopped and the strength of the magnetic field is returned to zero, and then the residual magnetic flux of the steel product with residual magnetic flux is detected by a coil. The method of determining the hardness of a steel product from the state of this induced voltage by inducing a voltage by linking the
The hardness of steel products and the residual magnetic flux, ie, the induced voltage, are almost proportional to each other, and it is extremely convenient for measuring hardness, so it is already widely used.
例えば、実公昭４５−２６：Ｌ４２ではベルトコンベア
に対向して磁化コイルと検出コイルを配設し、コンベア
で鋼材を運搬しこの鋼材が両コイルを通過することによ
り鋼材の硬度を判別する装置が開示されている。For example, in L42, a magnetizing coil and a detection coil are arranged opposite to a belt conveyor, and the steel material is transported by the conveyor and the steel material passes through both coils to determine the hardness of the steel material. Disclosed.
ところが、この装置は個々の鋼材の硬度を判別して上限
硬度と下限硬度を定めたグループに選別するものである
。従って硬度の分布状態を知ることは不可能であるばか
りでなく、被検査製品の形状によって検出硬度に差異が
生じるなど多くの間４点が残されている。However, this device determines the hardness of individual steel materials and sorts them into groups with upper and lower hardness limits. Therefore, it is not only impossible to know the distribution state of hardness, but also the detected hardness varies depending on the shape of the product to be inspected, so that the four points remain in many cases.
本発明の目的は、鉄鋼製品の硬度を高精度で検出し、硬
度測定するとともに必要に応じて硬度分布図をも出力し
得る鉄鋼製品の残留磁気による硬度検査装置を提供する
ものである。An object of the present invention is to provide a hardness testing device for steel products using residual magnetism, which can detect the hardness of steel products with high precision, measure the hardness, and output a hardness distribution map if necessary.
以下本発明の実施例を図面に基いて詳細に説明する。第
１図は本装置の鳥観図、第２図は時間と残留磁気値との
関係図、第３図は残留磁気値と硬度との関係図、第４図
は設定モードの７０−チャート、第５図は検査モードの
７ｐ−チャート、第９図はブロック図を示すものである
。Embodiments of the present invention will be described in detail below with reference to the drawings. Figure 1 is a bird's-eye view of this device, Figure 2 is a diagram of the relationship between time and residual magnetism value, Figure 3 is a diagram of the relationship between residual magnetism value and hardness, Figure 4 is the 70-chart in setting mode, and Figure 4 is a diagram of the relationship between residual magnetism value and hardness. FIG. 5 shows a 7p-chart in the inspection mode, and FIG. 9 shows a block diagram.
本発明による硬度検査装置は、磁化装置１と、検出装置
２と、マイコン装置３とによって構成されている。The hardness testing device according to the present invention includes a magnetization device 1, a detection device 2, and a microcomputer device 3.
このマイコン装置３は設定モード４と、検査モード５と
からなり、設定モード４は残留磁気値をマイコン装置ｌ
に取込む手段６と、鉄鋼製品の磁気特性を出力する手段
７と、多品種の鉄鋼製品に対応するための手段８（詳し
くは材質、形状に対応した残留磁気値を硬度に換算した
値をバンチしたカード）とからなるものである。This microcomputer device 3 consists of a setting mode 4 and an inspection mode 5. In setting mode 4, the residual magnetic value is
a means 6 for outputting the magnetic properties of steel products, a means 7 for outputting the magnetic properties of steel products, and a means 8 for dealing with a wide variety of steel products (more specifically, a means 8 for outputting the magnetic properties of the steel product by converting the residual magnetic value corresponding to the material and shape into hardness). It consists of a bunch of cards).
一方検査モード５は、残留磁気値をマイコン装置３に取
込む手段６と、残留磁気値を硬度に変換する手段９とか
らなるものである。On the other hand, the inspection mode 5 consists of a means 6 for inputting the residual magnetism value into the microcomputer device 3, and a means 9 for converting the residual magnetism value into hardness.
設定モード４では複数個の鉄鋼製品サンプルにより残留
磁気値を硬度に換算したパンチカードを作成し、検査モ
ード５は被検査製品の残留磁気値を検出し、この残留磁
気値を硬度変換したのち設定モード４と比較することに
よって合格、不合格の判定をするものである。In setting mode 4, a punch card is created by converting the residual magnetism value into hardness using multiple steel product samples, and in inspection mode 5, the residual magnetism value of the product to be inspected is detected, this residual magnetism value is converted to hardness, and then set. Passing or failing is determined by comparing with mode 4.
以上の構成により次に作用効果を説明する。Next, the effects of the above configuration will be explained.
まず硬度が予め確認されている鉄鋼製品のサンプルを設
定モード４にて第１図の硬度検査装置で検査する。この
結果第２図に示すようなサンプルの特性、つまり見掛け
の残留磁気値あるいはピーク値などがプリンターに出力
される。この設定モード４で複数個のサンプルを検査す
ることにより、第３図に示すような残留磁気値と硬度の
関係を表わすグラフを作成することができる。First, a sample of a steel product whose hardness has been confirmed in advance is inspected using the hardness inspection apparatus shown in FIG. 1 in setting mode 4. As a result, the characteristics of the sample as shown in FIG. 2, such as the apparent residual magnetic value or peak value, are output to the printer. By inspecting a plurality of samples in this setting mode 4, it is possible to create a graph showing the relationship between residual magnetism value and hardness as shown in FIG.
以上の設定モード４によって、特定製品について合格範
囲の硬度の下限と上限、及びそれに対応する残留磁気値
の下限と上限をプラスチック製のパンチカードに登録す
る。In the above setting mode 4, the lower and upper limits of hardness within the acceptable range for a specific product and the corresponding lower and upper limits of the residual magnetism value are registered on the plastic punch card.
次に検査モード５に移行する。Next, the mode shifts to inspection mode 5.
検査モード５では、まず設定モード４で作成したパンチ
カードをマイコン装置３に読込ませ、被検査製品を本装
置のベルトコンベア１０に載置して移送することにより
、マイコン装置３によって残留磁気値を読込むものであ
る。In inspection mode 5, the punch card created in setting mode 4 is first read into the microcomputer device 3, and the product to be inspected is placed on the belt conveyor 10 of this device and transferred, so that the microcomputer device 3 measures the residual magnetic value. It is something to read.
パンチカードのデータを基に、残留磁気値を演算処理し
て硬度に変換しプリンター及びモニターテレビに出力す
る。Based on the punch card data, the residual magnetism value is processed and converted into hardness, which is output to a printer and monitor TV.
この結果、合格品か不合格品かを自動的に判別し不′合
格品の場合にはランプの点灯、ブザー表示、搬送装置の
停止など次工程へ出力するものである。As a result, it is automatically determined whether the product is an acceptable product or a rejected product, and if the product is a non-conforming product, it is outputted to the next process, such as lighting a lamp, displaying a buzzer, and stopping the conveyance device.
硬度検査が終了すると、必要に応じて検査結果の硬度分
布図をプリンターへ出力することができる。本実施例に
用いたマイコン装置３は、１．０００個の検査結果を記
憶し得るものである。When the hardness test is completed, a hardness distribution map of the test results can be output to a printer if necessary. The microcomputer device 3 used in this example can store 1,000 test results.
尚、設定モード４、検査モード６の測定開始入力及び測
定終了入力は、それぞれ測定開始スイッチ１１及び測定
綻了スイッチ１２によって検出するものである。Note that the measurement start input and measurement end input in setting mode 4 and inspection mode 6 are detected by measurement start switch 11 and measurement termination switch 12, respectively.
次に第６図に示す電気回路概念図に基いて説明する。Next, a description will be given based on the conceptual diagram of the electric circuit shown in FIG.
２３は周知のマイクシコンピユータで１基本的にはＯＰ
ＵＩＢＳＲＡＭ１？、ＲＯＭ１６により構成されている
。ＲＯ凪６には０ＲＴ１８ ）ｐ制御するプログラムが
書き込まれており、ｏｐｔｎａｔ；ｔ 、このプレグラ
ムに従ってインプットボード１５より必要とされる外部
データを取込んだリ、あるいはＲＡＭ１７との間でデー
タの授受を行ったりしながら演算処理し、必要に応じて
処理したデータをアウトプットボード１９へ出力する。23 is a well-known microcomputer and is basically OP.
UIBSRAM1? , ROM16. A program to control 0RT18) is written in the RO Nagi 6, and according to this program, it imports necessary external data from the input board 15, or transfers data to and from the RAM 17. It performs arithmetic processing while doing so, and outputs the processed data to the output board 19 as necessary.
測定開始スイッチ１１が入ると、インプットボード１５
に信号が入り、それがｃｍｓに入力される。When the measurement start switch 11 is turned on, the input board 15
A signal is input to the CMS.
−８は、測定開始スイッチ２であることを認識すると、
インプットボード１５に１．ンバータ１４の変換開始の
指令を出し、測定終了スイッチ１２の入力があるまで、
変換値のデータな０虱８に取込み、ＲＡＭ１７に記憶す
る。検出装置１で発生する起電力はアンプ１３で増幅後
、いコンバータ１４に入力される。-8 recognizes that it is the measurement start switch 2,
1 on the input board 15. A command is issued to the converter 14 to start conversion, until the measurement end switch 12 is input.
The converted value data is taken into column 08 and stored in the RAM 17. The electromotive force generated by the detection device 1 is amplified by an amplifier 13 and then input to a converter 14 .
測定終了スイッチ１２の信号が入力されると、０Ｆ０１
８はインプットボード１５にいコンバータ１４の変換停
止の指令を出す。その後それまでにＲＡＭ１７に蓄えた
データの演算処理を行い、その結果をアウトプットボー
ド１９に出力する。アウトプットボード１９は０ＰＵ１
８の指令によりプリンター２０ 、ＯＲＴｍ、外部出力
２２等にそれぞれ出力するものである。When the signal from the measurement end switch 12 is input, 0F01
8 issues a command to the input board 15 to stop conversion of the converter 14. Thereafter, the data stored in the RAM 17 up to that point is subjected to arithmetic processing, and the results are output to the output board 19. Output board 19 is 0PU1
According to the command 8, the output is output to the printer 20, ORTm, external output 22, etc., respectively.
本発明による作用効果を列記すると次の通りである。The effects of the present invention are listed below.
Ｌ 硬度測定の精度を大幅に向上し得る。L: Accuracy of hardness measurement can be significantly improved.
２ 従来の硬度測定時間３００秒を１０秒に、つまりｌ
／３０に短縮できた。2 The conventional hardness measurement time of 300 seconds was reduced to 10 seconds, that is, l
I was able to shorten the time to /30.
＆ 検査員の肉体的、精神的疲労を軽減し得る。& It can reduce the physical and mental fatigue of inspectors.
本 検査結果を記憶し、必要に応じて硬度分布図として
出力し得るので前工程へのフィードパを速かに行うこと
ができる。Since the actual inspection results can be stored and output as a hardness distribution map if necessary, feeding to the previous process can be carried out quickly.
以上の説明で明らかなように、本発明による硬度検査装
置は、原価低減、環境改善、品質向上など多くの浸れた
効果を有するもので、工業的にきわめて有意鵜な発明で
ある。As is clear from the above description, the hardness testing device according to the present invention has many significant effects such as cost reduction, environmental improvement, and quality improvement, and is an extremely industrially significant invention.
第１図は鳥観図、第２図は時間と汐留磁気値との関係図
、第３図は残留磁気値と硬度との関係図、第４図は設定
モードのフローチャート、第５図は検査モードのフロー
チャート、第６図は電気回路概念図第７図はブロック図
である。
１：磁化装置、２：検出装置、３：マイコン装置、４＝
設定モード、５：検査モード。
以上
手続補正書（方式〕
１□５９．８．、′？−３１］
’Ｊ 明（７） 名称 鉄鋼製品の残留磁気による硬度
検査装置補正をする者
８ 材 ＋５０８１ 日立金属株式会社代／＋者河野
典夫
代 理 人
補正命令の日付 昭和５９年７月３１日（発送日）補正
の対象
明細書および図面
（内容に変更なし）
方式帛Figure 1 is a bird's-eye view diagram, Figure 2 is a diagram of the relationship between time and Shiodome magnetic value, Figure 3 is a diagram of the relationship between residual magnetism value and hardness, Figure 4 is a flowchart of setting mode, and Figure 5 is inspection mode. 6 is a conceptual diagram of an electric circuit, and FIG. 7 is a block diagram. 1: Magnetization device, 2: Detection device, 3: Microcomputer device, 4=
Setting mode, 5: Inspection mode. Written amendment to the above procedures (method) 1□59.8.,'?-31] 'J Akira (7) Name: Person who corrects hardness testing equipment using residual magnetism for steel products 8 Material: +5081 Hitachi Metals Co., Ltd. representative/+ person Kono
Date of the order to amend the person: July 31, 1980 (shipment date) Specification and drawings subject to amendment (no change in content) Format
Claims (1)
コン装置は、設定モードと検査モードとからなり ｅ） 上記設定モードは、残留磁気値をマイコン装置に
取込む手段と、鉄鋼製品の磁気特性を出力する手段と、
多品種の鉄鋼製品に対応するための手段とからなり、 ｒ） 上記検査モードは、上記残留磁気値をマイコン装
置に取込む手段と、残留磁気値を硬度に変換する手段と
からなり、 ｇ）上記設定モードでは複数個のサンプルによりパンチ
カードを作成し、上記検査モードは被検査製品の残留磁
気値を検出し、この残留磁気値を硬度変換した後出力し
、合格、不合格の判定を行なうことを特徴とする鉄鋼製
品の残留磁気による硬度検査装置。[Claims] Consisting of a) a magnetization device, b) a detection device, and C) a microcomputer device, d) the microcomputer device includes a setting mode and an inspection mode, and e) the setting mode includes a residual A means for importing magnetic values into a microcomputer device, a means for outputting magnetic characteristics of steel products,
(r) The inspection mode consists of a means for importing the residual magnetism value into a microcomputer device, and a means for converting the residual magnetism value into hardness; g) In the above setting mode, a punch card is created using multiple samples, and in the above inspection mode, the residual magnetic value of the product to be inspected is detected, this residual magnetic value is converted to hardness and output, and a pass/fail judgment is made. A hardness testing device for steel products using residual magnetism, which is characterized by:
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9718884A JPS60239666A (en) | 1984-05-15 | 1984-05-15 | Apparatus for inspecting hardness of steel product by residual magnetism |
| DE19853516214 DE3516214A1 (en) | 1984-05-15 | 1985-05-06 | Apparatus for testing the hardness of iron parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9718884A JPS60239666A (en) | 1984-05-15 | 1984-05-15 | Apparatus for inspecting hardness of steel product by residual magnetism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60239666A true JPS60239666A (en) | 1985-11-28 |
Family
ID=14185598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9718884A Pending JPS60239666A (en) | 1984-05-15 | 1984-05-15 | Apparatus for inspecting hardness of steel product by residual magnetism |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS60239666A (en) |
| DE (1) | DE3516214A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO162537C (en) * | 1986-02-17 | 1990-01-10 | Dam Patent A S | PROCEDURE AND DEVICE FOR NON-DESTRUCTIVE MATERIAL TESTING. |
| SE451886B (en) * | 1986-10-10 | 1987-11-02 | Sten Linder | SET AND DEVICE FOR SOUND-FREE SEAT OF SIZES OF OR CONNECTED TO ELECTRICALLY CONDUCTIVE MATERIAL |
| US5059903A (en) * | 1987-09-21 | 1991-10-22 | Hitachi, Ltd. | Method and apparatus utilizing a magnetic field for detecting degradation of metal material |
| US5117184A (en) * | 1988-06-23 | 1992-05-26 | Allison Sidney G | Magnetic remanence method and apparatus to test materials for embrittlement |
| US5121058A (en) * | 1988-06-23 | 1992-06-09 | Administrator, National Aeronautics And Space Administration | Method and apparatus for using magneto-acoustic remanence to determine embrittlement |
| DE4333830C2 (en) * | 1993-09-30 | 1997-11-27 | Inst Maschinen Antriebe Und El | Method for the selective determination of quantities for the continuous, spatially resolving examination of material parameters close to the surface for the production control as well as arrangement for the implementation of the method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1332766A (en) * | 1971-06-18 | 1973-10-03 | Upjohn Co | Triazolo-benzodiazepines |
| JPS58102148A (en) * | 1981-12-14 | 1983-06-17 | Kawasaki Steel Corp | On-line hardness measuring method for steel sheet |
| DE3234536C2 (en) * | 1982-09-17 | 1986-12-04 | Institut Prikladnoj Fiziki Akademii Nauk Belorusskoj SSR, Minsk | Device for electromagnetic control of the mechanical properties of moving ferromagnetic parts |
-
1984
- 1984-05-15 JP JP9718884A patent/JPS60239666A/en active Pending
-
1985
- 1985-05-06 DE DE19853516214 patent/DE3516214A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE3516214A1 (en) | 1985-11-21 |
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