KR19980043848U - Impact specimen notch indicator - Google Patents

Impact specimen notch indicator Download PDF

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Publication number
KR19980043848U
KR19980043848U KR2019960056971U KR19960056971U KR19980043848U KR 19980043848 U KR19980043848 U KR 19980043848U KR 2019960056971 U KR2019960056971 U KR 2019960056971U KR 19960056971 U KR19960056971 U KR 19960056971U KR 19980043848 U KR19980043848 U KR 19980043848U
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South Korea
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support
impact
tip
notch
magnetic plate
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KR2019960056971U
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Korean (ko)
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안상곤
손원근
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김종진
포항종합제철 주식회사
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Priority to KR2019960056971U priority Critical patent/KR19980043848U/en
Publication of KR19980043848U publication Critical patent/KR19980043848U/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02Details
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/30Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02Details not specific for a particular testing method
    • G01N2203/04Chucks, fixtures, jaws, holders or anvils

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

본 고안은 용접부의 부위별 충격인성을 정확히 평가하기 위하 충격 시험편 노치 표시장치에 관한 것으로, 레일이 형성되어 있는 다이 중앙에는 눈금(4)이 표기된 마그네틱판(2)을 고정설치하고, 상기 마그네틱판(2)의 일측에는 ON/OFF스위치(3)을 설치하며, 상기 다이의 레일에 체결되어 슬라이딩되는 지주(13)는 중앙부에 높이조절나사(10)가 설치되고, 일측 지주(13)에는 선긋기용 손잡이(11)를 설치하였으며, 지주(13)의 상부에는 팁조절나사(7)와 팁(6)이 설치된 선긋기대(5)를 수평이동조절나사(9)와 연결설치하였고, 지주(13)의 상부 지지대에는 눈금자(8)를 형성시켜서 된 것이다.The present invention relates to an impact test piece notch display device for accurately evaluating the impact toughness of each welded part. A magnetic plate (2) marked with a scale (4) is fixedly installed at the center of a die where a rail is formed, and the magnetic plate One side of the (2) is provided with an ON / OFF switch (3), the support (13) is fastened to the rail of the die sliding height height adjustment screw (10) is installed in the center, the one side support (13) The handle 11 was installed, and the upper end of the support 13 was connected to the horizontal movement adjusting screw 9 by installing a line adjusting rod 5 having a tip adjustment screw 7 and a tip 6 installed therein. In the upper support of the) is to form a ruler (8).

Description

충격 시험편 노치 표시장치Impact specimen notch indicator

본 고안은 용접부의 부위별 충격인성을 정확히 평가하기 위한 충격 시험편 노치 표시장치에 관한 것으로, 특히 여러개의 충격 시험편을 임의의 위치에 고정시키고, 또, 좌, 우 가장자리에 선긋이 대가 이동할 수 있도록 홈과 눈금자가 부착된 마그네틱 받침대를 갖추며 선긋이 팀의 높이 및 위치를 조정하도록 조절나사와 손잡이를 형성시켜 노치부를 표시하도록 한 것이다.The present invention relates to an impact test piece notch display device for accurately evaluating impact toughness of each welded part. Particularly, a plurality of impact test pieces are fixed at arbitrary positions, and grooves can be moved to the left and right edges. It has a magnetic pedestal with a and a ruler, and an adjustment screw and a handle are formed to mark the notch by adjusting the height and position of the scribe line.

일반적으로 용접구조용 강재는 용접부가 취화되기 쉽기 때문에 용접부 즉, 용접금속 및 열양향의 충격인성의 확보가 매우 중요하다. 실제로 용접부의 충격특성은 구조물의 안정성과 밀접한 관계가 있기 때문에 구조용 강재 선정시 매우 중요한 기준이 된다. 여기서 용접금속은 용접 아크에 의해 모재 자체가 용융되어 재응고 되었거나 또는 용접재료가 모재와 희석되어 응고된 부분을 치징하며, 용접 열영향부는 용접열에 의해 고온으로 가열됨으로써 조직적으로 변태가 일어난 부위를 가르킨다.In general, welded steel is easily welded, so it is very important to secure welded parts, that is, welded metal and impact toughness of heat direction. In fact, the impact characteristics of welded parts are closely related to the stability of the structure, which is a very important criterion when selecting structural steels. In this case, the weld metal is used to melt and re-solidify the base material by welding arc or to dilute the solidified material by diluting the welding material, and the welding heat affected zone is a part where tissue transformation occurs by heating to high temperature by welding heat. Turn on.

특히, 용접 열영향부는 용접조건에 의해 결정되는 열 사이클에 따라 사용한 강재가 변태점 이상으로 가열되었거나 그 이하로 가열됨으로써 결정립 조대화, 재결정, 제 2상의 석출 등 부분적으로 각기 다른 조직적 특성을 나타내기 때문에 이들 각 부위의 충격특성에 대한 정확한 평가가 필수적이다.In particular, the weld heat affected zone is partially heated due to the heat cycle determined by the welding conditions, and is heated above or below the transformation point, thereby exhibiting partially different organizational characteristics such as grain coarsening, recrystallization, and precipitation of the second phase. Accurate assessment of the impact properties of each of these areas is essential.

이러한 열영향부의 부위별 충격특성의 변화는 강재 제조업체나 용접시 공업체 모두에게 중요한 자료가 된다. 즉, 강재 제조업체의 경우는 용접부 충격특성이 우수한 강재 생산에 활용하며, 용접 시공업체에서는 용접부 충격 특성을 확보할 수 있는 용접 입열량의 제한에 이용할 수 있다.The change of the impact characteristics of each heat affected zone is an important data for both steel manufacturers and welding companies. That is, in the case of steel manufacturers, it can be used to produce steel with excellent weld impact properties, and the welding contractor can use it to limit the amount of heat input for welding to secure weld impact properties.

통상 강재의 충격특성은 KS규격에 준하여 2미리(mm)의 브이(V) 노치(Notch)를 갖는 샤르피 충격시험편을 사용하여 3회 또는 5회의 시험으로 평가한다.Normally, the impact characteristics of steel are evaluated by three or five tests using Charpy impact specimens having a V notch of 2 mm (mm) in accordance with KS standards.

따라서 브이 노치의 정확도, 즉 노치의 위치 및 팁의 각도 등이 충격특성과 밀접한 관계가 있다. 모재와 같이 조직이 균질한 경우, 노치 위치 및 브이 형상은 문제가 없으나, 용접부는 전술한 바와 같이 부위별 조직적 특성이 다르기 때문에 정확한 노치 위치의 선정이 매우 중요하다.Therefore, the accuracy of the V notch, that is, the position of the notch and the angle of the tip is closely related to the impact characteristics. If the tissue is homogeneous, such as the base material, the notch position and the V shape are not a problem, but the selection of the precise notch position is very important because the welded parts have different organizational characteristics as described above.

그러나 실 용접부는 도 1과 같이 복잡한 기하학적 형상을 나타내기 때문에 부위별 노치 위치를 선정하거나, 또 반복 시험편에서 재현성 있는 노치 위치를 확보하는 것이 매우 어렵다.However, since the seal weld shows a complicated geometrical shape as shown in Fig. 1, it is very difficult to select the notch position for each part or to secure a reproducible notch position in the repeated test piece.

실제로 지금까지 실용접부의 부위별 노치 위치를 정확하게 표시하기 위해 채취한 충격시험편을 전부 부식액으로 에칭하여 조직을 현출시킨 다음, 직선자를 이용하여 부위별 노치를 표시하여 기계가공으로 2미리 브이 노치로 제작하기 때문에 용접부 충격 시험편에 만드는데 소요되는 시간이 클 뿐아니라 노치 위치의 부정확으로 인한 충격 시험 결과의 해석에도 어려움이 많았다.In order to accurately indicate the location of the notch for each part of the practical welding part, all the impact specimens collected are etched with corrosion solution to reveal the tissue, and then the notches for each part are displayed using a straight line to produce 2 mm V notches by machining. As a result, the time required for making the weld impact specimens was not only large, but also difficult to interpret the impact test results due to the inaccurate notch position.

본 고안은 상기와 같은 제반 문제점을 감안하여 이를 해소하고자 고안한 것으로, 서브사이즈(10mm×2.5t) 용접부 충격시험을 하기 위해 정확한 노치부를 표시하는 장치로써, 시험편을 눈금자가 새겨져 있는 받침대(4)위에 올려놓고, on/off 스위치를 이용하여 고정시켜 원하는 부위(용접부 중심부, HAZ부, 모재부)를 선긋기용 팁의 조절나사와 눈금자 및 선긋기용 바의 높이를 조절하며, 10~20배의 확대경을 사용함으로써 정확한 부위에 선긋기용 팁을 놓은 후, 선긋기용 손잡이로 선을 긋도록 하는 용접부 충격 시험편 노치 표시장치를 제공함에 그 목적이 있는 것이다.The present invention was devised to solve this problem in consideration of the above-mentioned problems. As a device for displaying an accurate notch for a sub-size (10mm × 2.5t) weld impact test, a pedestal with a ruler engraved with a test piece (4 Put on the top and fix it by using on / off switch and adjust the adjusting screw of the tip for drawing line, the height of the ruler and the bar for drawing line. It is an object of the present invention to provide a weld impact test piece notch display device for placing a line drawing tip on an accurate portion by using a magnifying glass and then drawing a line with a line drawing handle.

이와 같이 목적을 달성하기 위한 본 고안의 특징은 여러개의 충격 시험편을 임의의 위치에 고정시키고, 또 좌, 우 가장자리에 선긋기 대가 이동할 수 있도록 홈과 눈금자가 부착된 마그네틱판을 갖추며, 선긋기 팀의 높이 및 위치를 조정하도록 조절나사와 손잡이를 형성시켜 노치부를 표시하도록 하여서 됨에 의한다.Thus, a feature of the present invention for achieving the object is to fix a number of impact specimens in arbitrary positions, and to have a magnetic plate with a groove and a ruler to move the drawer on the left and right edges, and the height of the drawer team And the adjustment screw and the handle to adjust the position to display the notch.

도 1은 용접된 충격 시험편의 사시도1 is a perspective view of a welded impact test piece

도 2는 본 고안의 노치 표시장치 사시도2 is a perspective view of the notch display device of the present invention

도 3(가), (나)는 본 고안의 노치 표시장치 작동상태를 보인 정면도Figure 3 (a), (b) is a front view showing the operating state of the notch display device of the present invention

도 4(가), (나)는 본 고안의 노치 표시장치 작동상태를 보인 측면도Figure 4 (a), (b) is a side view showing the operating state of the notch display device of the present invention

*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

1:용접 충격 시험편2:마그네틱판1: Welding Impact Test Piece 2: Magnetic Plate

3:on/off스위치4:눈금3: on / off switch 4: scale

5:선긋기대6:팀5: draw line 6: team

7:팀 조절나사8:눈금자7: Team adjustment screw 8: Ruler

9:수평이동 조절나사10:높이조절나사9: horizontal movement adjustment screw 10: height adjustment screw

11:선긋이용 손잡이12:확대경11: Handle for drawing 12: Magnifier

13:지주13: Holding

본 고안은 레일이 형성되어 있는 다이 중앙에는 눈금(4)이 표기된 마그네틱판(2)을 고정설치하고, 상기 마그네틱판(2)의 일측에는 ON/OFF스위치(3)을 설치하고, 상기 다이의 레일에 체결되어 슬라이딩되는 지주(13)는 중앙부에 높이 조절나사(10)가 설치되고, 일측 지주(13)에는 선긋이용 손잡이(11)를 설치하였으며, 지주(13)의 상부에는 팁조절나사(7)와 팁(6)이 설치된 선긋기대(5)를 수평이동조절나사(9)와 연결설치하였고, 지주(13)의 상부 지지대에는 눈금자(8)를 형성시켜서 된 것이다.According to the present invention, a magnetic plate (2) marked with a scale (4) is fixedly installed at the center of a die where a rail is formed, and an ON / OFF switch (3) is installed at one side of the magnetic plate (2), and The strut 13 which is fastened to the rail and slides has a height adjustment screw 10 installed at the center thereof, and a side handle 13 has a handle 11 for draping, and a tip adjustment screw at the top of the strut 13. 7) and the tip (6) is installed by connecting the line drawing bar (5) and the horizontal movement adjusting screw (9), the upper support of the support (13) is to form a ruler (8).

이와 같이 구성된 본 고안의 작용을 설명하면 다음과 같다.Referring to the operation of the present invention configured as described above are as follows.

본 고안은 용접부 부위별 충격 시험편 노치를 표시하는 장치로써, 도 2와 도 3(가), (나)에서 도시된 바와 같이 에칭 후, 시험편(1)을 마그네틱판(2) 위의 눈금(4)위에 올려놓고, 용접부의 중심부가 정확하게 가도록 맞춘후, 마그네틱 ON/OFF스위치(3)을 이용하여 시험편(1)을 고정시킨다.The present invention is an apparatus for displaying the impact test piece notch for each welded part. After etching, the test piece 1 is placed on the magnetic plate 2 after etching, as shown in FIGS. 2, 3 (a) and (b). ), And fix the test piece (1) by using magnetic ON / OFF switch (3).

그리고 나서 선긋기용 팁(6)이 용접부 중심위치에 가도록 높이 조절나사(10)를 이용하여 높이를 조절하고, 눈금자(8)을 이용하여 원하는 부위에 이동시키며, 선긋기용 바의 수평이동조절나사(9)를 이용하여 수평이동시키며, 선긋기용 팀 조절나사(7)로 선긋기용 팁(6)이 시험편에 닿도록 하여 고정시킨다.Then adjust the height using the height adjusting screw 10 so that the line drawing tip 6 is at the center of the welded portion, and move it to the desired area using the ruler 8, and the horizontal movement adjusting screw of the line drawing bar ( 9) move it horizontally, and fix it by touching the tip (6) to the test piece with the team adjusting screw (7) for drawing.

또한, 선긋기대(5)위에 부착된 10~20배의 확대경(12)을 선긋기용 팁(6)이 있는 곳으로 위치이동 시킨다(확대경을 부착하여 사용하는 이유는 충격 시험편이 서브사이즈(10mm×2.5t)이고, 에칭후의 바운더리가 희미하기 때문에 위와 같은 확대경(12)을 부착하여 사용함으로써 정확성을 보장할 수 있다).Also, move the 10-20 times magnifier 12 attached to the drawer 5 to the place where the tip 6 for drawing is placed. 2.5t), and since the boundary after etching is faint, accuracy can be ensured by attaching and using the magnifying glass 12 as described above).

이러한 순서로 작업을 한 후, 맨 마지막으로 선긋기용 손잡이(11)을 앞으로 잡아당겨 선을 긋는다. 또한 눈금자(8)은 mm단위로 정교하게 되어 있는 용접부 중심으로 부터 몇 mm까지도 선을 그을 수 있도록 하였다.After working in this order, the line 11 is pulled forward to draw the line 11 last. In addition, the ruler (8) was able to draw a line up to several mm from the center of the weld which is elaborated in mm units.

이상과 같은 본 고안은, 용접부 부위별 노치를 표시하는데, 소요되는 많은 작업 소요시간의 절약과 노치 위치의 부정확성을 개선하여 정확한 노치부를 표시해줌으로써 가공이 용이하며, 재현성이 있는 데이터를 얻을 수 있는 큰 효과가 있다.The present invention, as described above, displays notches for each welded part, which saves a lot of work time and improves the inaccuracy of the notch position, thereby displaying the accurate notch part, and the processing is easy, and large reproducible data can be obtained. It works.

Claims (1)

레일이 형성되어 있는 다이 중앙에는 눈금(4)이 표기된 마그네틱판(2)을 고정설치하고, 상기 마그네틱판(2)의 일측에는 ON/OFF스위치(3)을 설치하며,In the center of the die where the rail is formed, a magnetic plate (2) marked with a scale (4) is fixedly installed, and an ON / OFF switch (3) is installed at one side of the magnetic plate (2), 상기 다이의 레일에 체결되어 슬라이딩되는 지주(13)는 중앙부에 높이조절나사(10)가 설치되고, 일측 지주(13)에는 선긋기용 손잡이(11)를 설치하였으며,The strut 13, which is fastened to the rail of the die and slides, has a height adjusting screw 10 installed at the center thereof, and one side 13 has a handle 11 for drawing line. 지주(13)의 상부에는 팁조절나사(7)와 팁(6)이 설치된 선긋기대(5)를 수평이동조절나사(9)와 연결설치하였고,On the upper part of the support (13), a line adjusting table (5) having a tip adjusting screw (7) and a tip (6) is connected to the horizontal moving adjusting screw (9), 지주(13)의 상부 지지대에는 눈금자(8)를 형성시켜서 된 것을 특징으로 하는 충격 시험편 노치 표시장치.Impact test piece notch display device, characterized in that the ruler (8) is formed on the upper support of the support (13).
KR2019960056971U 1996-12-26 1996-12-26 Impact specimen notch indicator KR19980043848U (en)

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KR2019960056971U KR19980043848U (en) 1996-12-26 1996-12-26 Impact specimen notch indicator

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KR2019960056971U KR19980043848U (en) 1996-12-26 1996-12-26 Impact specimen notch indicator

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102250349B1 (en) * 2019-10-31 2021-05-10 주식회사 포스코 Notch marking device for impact testing of weldments
CN114274115A (en) * 2021-11-25 2022-04-05 浙江省交通运输科学研究院 Pipe marking device and method based on end face positioning

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102250349B1 (en) * 2019-10-31 2021-05-10 주식회사 포스코 Notch marking device for impact testing of weldments
CN114274115A (en) * 2021-11-25 2022-04-05 浙江省交通运输科学研究院 Pipe marking device and method based on end face positioning

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