JP2008129003A - Simple method for determining component of steel material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable an operator to easily determine a steel type by using a spark test, even in the case the operator is not an expert. <P>SOLUTION: An instructional storage medium 2 which is realized by carrying out spark tests while pressing standard test strips of steel materials consisting of various components against a grinder 3 under a fixed condition to send off sparks and then collecting various specific data such as spark shapes, colors, bursting states and the like of the steel materials consisting of the various components, is used by a computer 1, thereby imaging characteristics of the various components such as the spark shapes, colors, bursting states and the like. Furthermore, a spark test is carried out, in which an actual steel product to be determined 5 is pressed against the grinder 3 under the same condition as above standard test strips, and spark shapes, colors, bursting states and the like in that case are photographed by using a camera or a video camera 4, and then photographed images of the spark shapes of the steel product 5 subjected to the spark test actually are compared with images of the spark shapes of the various components in the instructional storage medium 2, and when finding a matching state, such the determination is made that the component of the matched standard test strip is identical to that of the actual steel product to be determined. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

    The present invention relates to a simple component determination method for steel.

  In recent years, steel materials having various components have been developed and have been used for various purposes. These components are classified only by component manufacturers' component sheets and labels attached to the materials. However, as the production system of small quantities and many types is changing, the classification of steel types is becoming more and more complex and the importance is increasing. In addition, in the process of increasing the added value from a single label material entered from a material manufacturer to processed products of various shapes by becoming a small quantity and a variety of products, the management sheet is lost for the components of the product itself, etc. Trouble occurs. In that case, a fireworks test method is defined in JIS G 0565 as a simple test method that does not require much time for estimation of this steel type and discrimination of different materials. In this method, as shown in FIG. 6, a spark test is performed in which a steel product (steel piece) H to be examined is pressed against a grinder G under certain conditions and a spark is blown, and the spark shape, color, and rupture condition that pops out from the grinder G Etc. are visually observed directly at the site to distinguish the steel type from the characteristics.

  However, the above-described conventional spark test method requires a very high level of skill in order to distinguish the steel type from the spark shape, color, bursting condition, etc. that are observed by visual observation at the site and jump out of the grinder G. . For this reason, there has been a problem that each company has a skilled person called this craftsman.

  Then, this invention makes it a subject to provide the simple component determination method of the steel materials which can determine steel type easily and easily even if it is not an expert.

  In order to solve the above-mentioned problems, the present invention performs a spark test in which a standard test piece of steel material of various components is pressed against a grinder under a certain condition to fly a spark, Collect various types of ruptures, record the collected videos and still images on a recording medium as a teaching material for component determination using a computer, and use the teaching material storage medium to create spark shapes, colors, and ruptures of various components. While performing the fireworks test, the spark shape of the actual steel product to be judged is pressed against the grinder under the same conditions as in the case of the standard test piece, and the spark shape and Photographs of the spark shape of steel products that were photographed with a photo camera or video camera, such as color and rupture, and actually tested for sparks, and spark shapes of various components of the recording medium for teaching materials If their by comparing the video image actually a component of the steel product to be determined and their matched components of the standard specimen is characterized in that so as to determined the same.

  According to the present invention, the spark shape of the actual steel product to be determined as described above is taken by photography or video under the same conditions as in the case of the previous standard test piece, and the steel product actually subjected to the spark test is taken. The components of the actual steel product to be determined to be the components of the standard specimen that matched the spark-shaped photographed image and the spark-shaped video images of the various components of the teaching material recording medium projected on the computer. Therefore, even if you are not an expert, the spark shapes of the various components recorded on the recording medium for teaching materials and visualized by the computer, and the spark shapes of the actual steel products photographed Compared to each other, it is possible to determine that the components of the matched standard test specimen are the same, so even if you are not an expert, it is easy, easy and accurate based on the images imaged on the computer and the actual steel products. It is possible to determine.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows equipment used for a simple component judgment method for steel materials. 1 is a computer, 2 is a spark test in which standard test pieces of steel materials of various components are pressed against a grinder under certain conditions, and a spark test is performed. Various recording materials such as spark shapes, colors and bursting conditions specific to steel of various components are collected, and the recorded videos and still images are recorded as teaching materials for component determination by a computer. 3 is a grinder, 4 is a video camera Reference numeral 5 denotes an actual steel product (steel piece) to be determined.

  Specifically, when recording the spark shape, color, and rupture condition of various components on the educational material recording medium 2, the entire spark, the root, the center, and the tip of the spark, moving images, still images, enlarged images, While recording with slow video etc., characteristics when observing sparks of various components, streamline color, brightness, length, angle, thickness, number, and characteristics, shape when rupture is observed, Size, pollen presence, streamline angle, etc. can be recorded simultaneously with the above-mentioned video, still image, enlarged image, slow image, along with voice and text display on the screen, etc. so that you can learn from both It is recorded.

  The computer 1 uses the teaching material storage medium 2 to visualize the spark shape, color, rupture condition, and characteristics of each component, and displays the video, still images, and magnified images together with the characters and text on the screen. Therefore, it is possible to easily and easily learn the spark shape, color, and rupture condition of various components without being skilled.

  On the other hand, an actual steel product 5 to be judged is pressed against the grinder 3 under the same conditions as in the case of the previous standard test piece, and a spark test is performed to fly the spark, and the spark shape, color, and bursting condition in that case are video Take a picture with the camera 4 (may be a camera).

  Then, if the shot image of the spark shape in the steel product 5 actually subjected to the spark test and the video images of the spark shape of various components of the teaching material recording medium 2 are compared and matched, it will be determined that the component of the matched standard test piece. It is determined that the components of the actual product are the same.

  Specifically, when the spark shape of the captured image of the steel product 5 actually subjected to the spark test and the video image of various components of the teaching material recording medium 2 is compared and observed, as shown in FIG. The color, brightness, length, thickness, and number of streamlines across the entire spark, the root of the spark as shown in FIG. 3, the center as shown in FIG. 4, and the tip of the tip as shown in FIG. Observe and for rupture, carefully observe in detail the shape, size, pollen presence, streamline angle, pitch, etc. It can be determined that the components of the actual product to be determined are the same.

  In that case, a photograph or image of the steel product 5 that has actually been subjected to a spark test to be judged may be compared with video images of various components of the teaching material recording medium 2 projected on the video screen of the computer 1, or The video image of the steel product 5 that has actually undergone a spark test to be judged is taken into the computer 1 and projected onto the video screen of the computer 1, and the previous teaching material record that is projected onto the video screen of the computer 1 The video images of the various components of the medium 2 are compared. The computers may be the same or different.

  As described above, according to the simple component determination method of the steel material of the present invention, the spark shapes of various components recorded in the teaching material recording medium 2 and visualized by the computer 1, and the actual photographed images, even if not an expert. The spark shape of the steel product 5 can be observed and compared in detail, and if matched, it can be determined that it is a component of the matched standard test piece. It can be easily and accurately determined based on the image.

  In addition, since the computer 1 can be used to visualize and reproduce the spark shape, color, and rupture characteristics of various components of steel materials at any time based on the teaching material storage medium 2, it is necessary to repeatedly learn based on the reproduced images. It can be used to acquire knowledge of engineers.

  It is explanatory drawing which shows the outline | summary of the simple component determination method of the steel materials which concern on this invention.   It is video explanatory drawing of the whole spark of the spark test by the same determination method.   It is video explanatory drawing of each part spark test of the root part of the same spark.   It is video explanatory drawing of the center part of the same spark.   It is video explanatory drawing of the front-end | tip part of the same spark.   It is conventional explanatory drawing.

Explanation of symbols

1 Computer 2 Storage medium for teaching material 3 Grinder 4 Video camera 5 Actual steel product to be judged

Claims (1)

  We conduct a spark test in which standard steel specimens of various components are pressed against a grinder under certain conditions to fly sparks, and various spark shapes, colors and rupture conditions peculiar to steel of various components are collected. A still image is recorded on a recording medium as a component judgment material by a computer, and the characteristics such as the spark shape, color, and rupture condition of each component are visualized by the computer using the teaching material storage medium, while the actual attempt to judge A spark test is performed by pressing the spark shape of the steel product against the grinder under the same conditions as the previous standard test piece, and the spark shape, color, and rupture condition are photographed with a camera or video camera. If the shot images of the spark shape of the steel products actually subjected to the spark test were compared with the image images of the spark shape of the various components of the recording material for teaching materials, the results matched. Simple component determination method of the steel, characterized in that as the actual and components of the steel product to be determined component of quasi specimen is determined to be the same.

Images