CN210719966U

CN210719966U - Welding sample

Info

Publication number: CN210719966U
Application number: CN201921719813.0U
Authority: CN
Inventors: 路彦兴; 张作栋; 韩春雷; 庞文忠; 刘云涛; 王大勇; 安国旗
Original assignee: Hebei Academy Of Architectural Sciences Co ltd
Current assignee: Hebei Academy Of Architectural Sciences Co ltd
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-06-09
Anticipated expiration: 2029-10-14

Abstract

The utility model provides a welding sample belongs to welding seam detection technology field, and welding sample includes: the device comprises a base material, a welding line, a plurality of stretching identification areas and a plurality of spectrum identification areas. A base material; the welding seam is positioned at the welding position of the base material. The plurality of stretching identification areas are arranged on the same side face of the base metal and the welding line, the stretching identification areas are perpendicular to the welding line, and two ends of the stretching identification areas are distributed on two sides of the welding line. The plurality of spectrum identification areas correspond to the stretching identification areas one by one and are arranged at intervals of a certain distance from the stretching identification areas, and two ends of each spectrum identification area are positioned on two sides of the welding line. The tensile identification area is used for cutting out a tensile test piece positioned in the tensile identification area, and the spectrum identification area is used for cutting out a spectrum test piece positioned in the spectrum identification area. The utility model provides a welding sample can improve the accuracy of testing data.

Description

Welding sample

Technical Field

The utility model belongs to the technical field of the welding seam detects, more specifically says, relates to a welding sample.

Background

The construction engineering quality detection mechanism bears a large amount of steel structure engineering detection and identification tasks in daily work, and the situation that the tensile strength of component steel and welding seams needs to be detected is often met in the actual detection process. The existing detection method needs to perform local sampling on the building structural member and then perform testing, is not beneficial to the overall safety of engineering and is not beneficial to the smooth and effective development of detection work. When the base material sample is used for simulation measurement, the base material needs to be welded first, and after welding is completed, tensile strength experiment, spectrum analysis and the like are performed on the base material. The parent metal is scrapped after being used once, so that the measured data has high randomness, and the detection precision cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a welding sample aims at solving the great problem of data randomness that records through the parent metal.

In order to achieve the above object, the utility model adopts the following technical scheme: providing a weld specimen comprising:

a base material;

the welding seam is positioned at the welding position of the base metal;

the stretching identification areas are arranged on the same side face of the base metal and the welding line, are perpendicular to the welding line and are distributed at two ends of the welding line; and

the spectrum identification areas correspond to the stretching identification areas one by one and are arranged at intervals of a certain distance from the stretching identification areas, and two ends of the spectrum identification areas are positioned on two sides of the welding line;

the tensile identification area is used for cutting out a tensile test piece positioned in the tensile identification area, and the spectrum identification area is used for cutting out a spectrum test piece positioned in the spectrum identification area.

In another embodiment of the present application, the welding sample further includes a hardness detection area line on the other side of the base material and the weld.

As another embodiment of the present application, the hardness detection area line includes:

the base material hardness identification area is positioned on one side of the base material close to the welding line and used for marking an area for measuring the hardness of the base material; and

and the welding seam hardness marking area internally comprises a part of welding seam area and is used for marking the area for measuring the welding seam hardness.

As another embodiment of the present application, the base material hardness identification area and the weld hardness identification area are provided in plurality, and the base material hardness identification area and the weld hardness identification area are both arranged along the length direction of the weld.

As another embodiment of the application, two sides of the welding seam are provided with grooves.

As another embodiment of the present application, the welding sample further includes a parent metal tensile identification region and a parent metal spectral identification region, where the parent metal tensile identification region and the parent metal spectral identification region are both located on a side of the parent metal away from the weld; the parent material stretching identification area is used for cutting out a parent material stretching test piece positioned in the parent material stretching identification area; the base material spectrum identification area is used for cutting out a base material spectrum test piece located in the base material spectrum identification area.

As another embodiment of the present application, the welding sample further includes a clamping frame for clamping and fixing the heated base material during welding.

As another embodiment of the present application, the clamping frames are disposed on both side edges of the base material.

As another embodiment of the present application, the holder includes:

the two pressing pieces are positioned on two sides of the welding line and used for clamping and fixing the base material; and

and the connecting rod is fixedly arranged between the two pressing pieces.

As another embodiment of the present application, the pressing member includes:

one end of the supporting column is abutted against one side surface of the base material;

one end of the bending part is fixedly connected with the other end of the supporting column; and

the tightening piece is fixedly connected with the other end of the bending part;

the connecting rod is fixedly connected with the bending part; the tightening piece has a degree of freedom of rotation around its axis, and the base material is clamped to the support column by means of a threaded connection with the other end of the bent portion

The utility model provides a welding sample beneficial effect lies in, compares with prior art, the utility model discloses the welding seam is located the welding department of mother metal among the welding sample. Marking a plurality of stretching identification areas and a plurality of spectrum identification areas on the surfaces of the base metal and the welding line. The spectrum identification area and the stretching identification area are in one-to-one correspondence and are arranged at a certain distance. The two ends of the stretching identification area and the spectrum identification area are both positioned at the two sides of the welding line, and the stretching identification area is perpendicular to the welding line. The tensile test piece and the spectrum test piece which are respectively positioned in the tensile identification area and the spectrum identification area can be cut. The welded parent metal is cut into a plurality of tensile test pieces and spectrum test pieces, and the plurality of spectrum test pieces are subjected to spectrum analysis by testing the tensile strength of the plurality of tensile test pieces. The test times are increased, the randomness of data when only one test is carried out on the base material is avoided, and the detection precision is convenient to improve.

Drawings

Fig. 1 is a distribution diagram of a stretching identification area and a spectrum identification area provided by an embodiment of the present invention;

fig. 2 is a partial cross-sectional view of a welding template provided in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a holding frame according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of fig. 3 provided in accordance with an embodiment of the present invention;

fig. 5 is a distribution diagram of the parent metal hardness identification area and the weld hardness identification area provided by the embodiment of the present invention.

In the figure: 1. a base material; 2. welding seams; 3. stretching the identification area; 4. a spectral identification region; 5. a parent material stretching identification area; 6. a base material spectrum identification area; 7. a groove; 8. a connecting rod; 9. a compression member; 901. a tightening member; 902. a bending part; 903. a support pillar; 10. a base material hardness identification area; 11. and a weld hardness identification zone.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, a welding sample according to the present invention will now be described. A weld specimen comprising: the welding method comprises a base material 1, a welding line 2, a plurality of stretching identification areas 3 and a plurality of spectrum identification areas 4. A base material 1; the weld 2 is located at the weld of the base material 1. A plurality of tensile identification areas 3 are arranged on the same side surface of the base metal 1 and the welding line 2, the tensile identification areas 3 are perpendicular to the welding line 2, and two ends of the tensile identification areas are distributed on two sides of the welding line 2. The spectrum identification areas 4 correspond to the stretching identification areas 3 one by one and are arranged at intervals of a certain distance from the stretching identification areas 3, and two ends of the spectrum identification areas 4 are positioned on two sides of the welding line 2. The tensile identification area 3 is used for cutting out a tensile test piece positioned in the tensile identification area 3, and the spectrum identification area 4 is used for cutting out a spectrum test piece positioned in the spectrum identification area 4.

The utility model provides a welding sample beneficial effect lies in, compares with prior art, the utility model discloses welding sample middle weld 2 is located the welding department of mother metal 1. A plurality of stretching mark areas 3 and a plurality of spectrum mark areas 4 are marked on the surfaces of the base metal 1 and the welding seam 2. The spectrum identification area 4 and the stretching identification area 3 are in one-to-one correspondence and are arranged at a certain distance. Both ends of the tensile identification area 3 and the spectrum identification area 4 are located at both sides of the welding line 2, and the tensile identification area 3 is perpendicular to the welding line 2. The tensile test piece and the spectrum test piece which are respectively positioned in the tensile identification area 3 and the spectrum identification area 4 can be cut. The welded base material 1 is cut into a plurality of tensile test pieces and spectrum test pieces, and the plurality of spectrum test pieces are subjected to spectrum analysis by testing the tensile strength of the plurality of tensile test pieces. The test times are increased, the randomness of data when only one test is carried out on the base material 1 is avoided, and the detection precision is convenient to improve.

As a specific embodiment of the welding sample provided in the present invention, please refer to fig. 5, the welding sample further includes a hardness detection area line located at another side of the base material 1 and the welding seam 2. And (4) carrying out surface hardness test on the plate to be tested by using a calibrated Leeb hardness tester to determine the hardness value. The steel plate base metal 1 and the weld joint 2 metal are subjected to surface hardness test by a calibrated Leeb hardness tester, the hardness test is performed on an uncut whole steel plate, and the tensile test piece is machined after the steel plate is cut. Tensile test pieces meeting the tensile test size requirements are no longer suitable for hardness tests. Therefore, the hardness measurement is carried out first, and then the cutting and the tensile strength measurement are carried out. And in order to fully detect the hardness information of different positions of the base metal 1 and the welding seam 2, drawing a hardness detection area line on the other side surfaces of the base metal 1 and the welding seam 2, because the surface treatment requirements of the base metal 1 and the welding seam 2 are different before the hardness detection, in order to improve the detection precision, one surface of the base metal 1 and the welding seam 2 can be polished in advance, a roughness meter is used for measuring the roughness of the polished surface, and the average value of the roughness meter is taken, wherein the number of points is not less than 5 points per measurement. The reading is accurate to 0.01 μm, and the test surface roughness is not more than 1.6 μm, so that the subsequent test can be carried out. The roughness values of the surfaces of the base metal 1 and the welding line 2 can be accurately measured through the roughness meter, the roughness values in different areas are measured, the roughness values are summed and averaged, the inaccuracy of data can be effectively avoided, and therefore the current polishing degree is truly reflected. And drawing a hardness detection area line after the hardness detection area line meets the requirement.

As a specific implementation manner of the welding sample provided by the present invention, please refer to fig. 5, the hardness detection area line includes: a base material hardness marking area 10 and a welding line hardness marking area 11. The base material hardness marking region 10 is located on one side of the base material 1 close to the weld 2 and is used for marking a region for measuring the hardness of the base material 1. The weld hardness designation region 11 includes a region of a portion of the weld 2 therein for designating a region for measuring the hardness of the weld 2. A weld hardness marking area 11 is drawn in the area of the weld 2, and a base material hardness marking area 10 is drawn on the side of the base material 1 close to the weld 2. The change condition of the tensile strength of the material can be more accurately measured by respectively detecting the hardness of the base material 1 and the hardness of the welding line 2, and the base material hardness identification area 10 and the welding line hardness identification area 11 can be divided into a plurality of areas and can be arranged along the length direction of the welding line 2.

As the utility model provides a concrete implementation of welding sample please refer to fig. 5, and base metal hardness identification area 10 and welding seam hardness identification area 11 all are provided with a plurality ofly, and base metal hardness identification area 10 and welding seam hardness identification area 11 all set up along 2 length directions of welding seam. Therefore, the strength changes of the base material 1 and the welding line 2 at different positions can be detected, and the hardness information of the base material 1 and the welding line 2 can be reflected more truly. By measuring the hardness information of a plurality of point positions, the randomness of data can be reduced, and the precision of the data is ensured.

As a specific embodiment of the welding sample provided by the present invention, please refer to fig. 2, grooves 7 are formed on both sides of the welding seam 2. The groove 7 can be a depth-fixing notch, and a tensile test is carried out after the upper and lower corresponding depth-fixing notches are cut in the length direction of the welding seam 2, so that the test piece is ensured to be broken at the welding seam 2. The grooves 7 may be formed in the length direction of the weld 2 on opposite sides of the base material 1. The depth of the fixed-depth incision can be selected according to actual conditions. It is ensured that a fracture can be obtained at the weld seam 2.

As a specific implementation manner of the welding sample provided by the present invention, please refer to fig. 1, the welding sample further includes a mother material stretch mark region 5 and a mother material spectrum mark region 6, and both the mother material stretch mark region 5 and the mother material spectrum mark region 6 are located on a side of the mother material 1 away from the weld 2; the parent material stretching identification area 5 is used for cutting out a parent material stretching test piece positioned in the parent material stretching identification area 5; the base material spectrum identification area 6 is used for cutting out a base material spectrum test piece positioned in the base material spectrum identification area 6. And cutting the plate positioned in the corresponding cutting line by a cutting machine, thereby obtaining a plurality of parent material tensile test pieces and parent material spectrum test pieces on the two parent materials 1. The test piece can be used as a comparison item to carry out subsequent tests, and the data accuracy is improved by analyzing the data.

As a specific implementation of the welding sample provided by the utility model, please refer to fig. 3, the welding sample still includes the holding frame, and the holding frame is used for when welding base metal 1 after to the heating centre gripping fixed. The heated base material is clamped by the clamping frame, so that the deformation degree of the base material can be reduced. The strength of the welding seam is ensured. To facilitate welding of the base material 1 and to suppress deformation of the base material 1 during welding. The base material 1 is clamped and fixed by a clamping frame, and the base material 1 is welded after clamping and fixing to form a welding seam 2. Through the effect of clamping frame, can prevent that in the in-process that welding seam 2 formed, because reasons such as expend with heat and contract with cold, the welding seam 2 department that leads to produces bending stress, and fixed through the centre gripping of clamping frame, can restrain the production of deformation to a certain extent at the initial stage that welding seam 2 formed, guaranteed follow-up experimental precision.

As a specific embodiment of the welding sample provided in the present invention, please refer to fig. 4, the clamping frame is disposed on two sides of the base material 1. By clamping the base material 1 at two sides of the base material 1, the deformation generated in the welding process can be further reduced, and the two sides of the base material 1 can be the sides of the base material 1 perpendicular to the welding seam 2, but not the sides of the base material 1 deviating from the welding seam 2. Two sides of the base material 1 are the sides with an included angle close to 90 degrees with the length direction of the welding seam 2. The clamping holders are arranged opposite to each other on both sides of the base material 1, thereby further reducing the occurrence of deformation.

As a specific embodiment of the welding sample provided in the present invention, please refer to fig. 4, the clamping frame includes: two hold-down members 9 and a connecting rod 8. The two pressing pieces 9 are located on two sides of the welding seam 2, and the pressing pieces 9 are used for clamping and fixing the base material 1. The connecting rod 8 is fixedly arranged between the two pressing pieces 9. The two pressing members 9 are provided on both sides of the weld 2 and clamp and fix the base material 1, and bending deformation of the base material 1 with respect to the other side can be reduced to some extent by clamping both sides of the base material 1. And the connecting rod 8 is fixedly arranged between the two pressing pieces 9, aiming at preventing the relative change of the positions between the pressing pieces 9, the pressing pieces 9 are fixed through the connecting rod 8, and the base material 1 is clamped through the pressing pieces 9. The force of bending deformation of the base material 1 is transmitted to the connecting rod 8 through the pressing piece 9, and the connecting rod 8 with high strength can be arranged and can be a steel shaft. The compression member 9 resists the deformation of the base material 1 through the bending resistance of the connecting rod 8, and the accuracy of the later test is ensured.

The utility model discloses in, tensile identification area 3 can be the rectangle structure, and spectrum identification area 4 can be rectangle or square structure. The middle parts of the stretching identification area 3 and the spectrum identification area 4 can be arranged in the welding seam 2 area, and the accuracy of the measured data is ensured.

As a specific embodiment of the welding sample provided in the present invention, please refer to fig. 4, the pressing member 9 includes: support column 903, bend 902 and tightening element 901. One end of the support column 903 abuts against one side surface of the base material 1. One end of the bending part 902 is fixedly connected with the other end of the supporting column 903. The fastening member 901 is fixedly connected to the other end of the bending portion 902. The connecting rod 8 is fixedly connected with the bending part 902; the tightening member 901 has a degree of freedom of rotation about its axis, and clamps the base material 1 to the support column 903 by means of a threaded connection with the other end of the bent portion 902. In order to avoid the compression piece 9 to hinder the normal operation of welding, fix support column 903 and the piece 901 of screwing respectively at the both ends of the portion 902 of bending, the inboard of the portion 902 of bending is used for accomodating base metal 1, through preset, support column 903 can be comparatively perpendicular to base metal 1 sets up, the piece 901 of screwing can with the other end threaded connection of the portion 902 of bending, the screw hole can be opened to the other end of the portion 902 of bending, the threaded rod that the piece 901 of screwing can have the handle, through with threaded rod and screw hole threaded connection, and rotate the threaded rod, and then be close to the threaded rod to support column 903, thereby press from both sides base metal 1 fixedly, and at the middle part of two compression pieces 9, and the opening syntropy setting of two portions 902. The support column 903 may be a pin. The tightening member 901 may be a bolt. The connecting rod 8 may be a curved plate extending along both sides of the middle of the bent portion 902. Through the tight fixed of spiral spare 901 with base metal 1 clamp, through the deformation of connecting rod 8 when resisting base metal 1 welding, after the welding is accomplished, can take base metal 1 out from compressing tightly 9 through the reverse rotation threaded rod to it is comparatively compact to compress tightly 9 structures, portable is fit for on-the-spot measurement.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A welding specimen characterized by comprising:

a base material;

the welding seam is positioned at the welding position of the base metal;

the plurality of tensile identification areas are used for cutting out a plurality of tensile test pieces, and the plurality of spectrum identification areas are used for cutting out a plurality of spectrum test pieces.

2. The welding specimen according to claim 1, characterized in that the welding specimen further comprises a hardness detection area line on the other side of the base material and the weld.

3. The welding specimen of claim 2, wherein the hardness detection area line comprises:

4. The welding specimen according to claim 3, wherein a plurality of the base material hardness indicating regions and the bead hardness indicating regions are provided, and the base material hardness indicating regions and the bead hardness indicating regions are provided along a length direction of the bead.

5. Welding coupon according to claim 1, wherein said weld seam is grooved on both sides.

6. The welding specimen of claim 1, further comprising a parent material stretch marker region and a parent material spectral marker region, both located on a side of the parent material facing away from the weld; the parent material stretching identification area is used for cutting out a parent material stretching test piece positioned in the parent material stretching identification area; the base material spectrum identification area is used for cutting out a base material spectrum test piece located in the base material spectrum identification area.

7. The welding sample according to claim 1, further comprising a holder for holding and fixing the heated base material during welding.

8. The welding specimen of claim 7, wherein the holders are provided on both sides of the parent material.

9. The welding coupon of claim 7, wherein the holder comprises:

and the connecting rod is fixedly arranged between the two pressing pieces.

10. Welding coupon according to claim 9, characterized in that said compression means comprise:

the connecting rod is fixedly connected with the bending part; the tightening piece has a degree of freedom of rotation around its axis, and clamps the base material to the support column by means of a threaded connection with the other end of the bent portion.