CN108871903A - A kind of preparation method of clad steel plate substrate tensile sample - Google Patents
A kind of preparation method of clad steel plate substrate tensile sample Download PDFInfo
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- CN108871903A CN108871903A CN201810821032.6A CN201810821032A CN108871903A CN 108871903 A CN108871903 A CN 108871903A CN 201810821032 A CN201810821032 A CN 201810821032A CN 108871903 A CN108871903 A CN 108871903A
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- steel plate
- preparation
- clad steel
- sample
- tensile sample
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 52
- 239000010959 steel Substances 0.000 title claims abstract description 52
- 239000000758 substrate Substances 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000002131 composite material Substances 0.000 claims abstract description 15
- 238000005520 cutting process Methods 0.000 claims abstract description 15
- 238000003801 milling Methods 0.000 claims abstract description 10
- 238000005202 decontamination Methods 0.000 claims abstract description 4
- 230000003588 decontaminative effect Effects 0.000 claims abstract description 4
- 150000001875 compounds Chemical class 0.000 claims description 5
- 238000012360 testing method Methods 0.000 abstract description 12
- 238000003754 machining Methods 0.000 abstract description 10
- 238000012545 processing Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 238000012805 post-processing Methods 0.000 abstract description 2
- 238000003672 processing method Methods 0.000 abstract description 2
- 238000005452 bending Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 238000005464 sample preparation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2873—Cutting or cleaving
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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)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of preparation method of clad steel plate substrate tensile sample, it includes by after clad steel plate surface decontamination, successively through vertical milling, the mode for opening shoulder milling and wire cutting.In existing processing method, processing length 400mm, machining area is too long, it is prone to bending, tilts in cutting process, machining area plate size is caused deviation occur, while being easy to cut steel plate composite layer uneven, even damage clad steel plate substrate, to influence stretch test result；Improvement post-processing region is 80mm, and machining area is tension test parallel-segment region, and machining area is short, is conducive to control accurate to dimension, guarantees the intact excision of steel plate composite layer, while completely retaining substrate of steel plate, it is ensured that the integrality and accuracy of test data.Simultaneous processing process is cut at a slow speed using wire cutting, further facilitates processing dimension control, guarantees machining accuracy.
Description
Technical field
The invention belongs to clad steel plate detection technical fields, and in particular to a kind of system of clad steel plate substrate tensile sample
Preparation Method.
Background technique
Tension test refers to the test method that material property is measured in the case where bearing axial tensile loads, also known as tensile test.
It is one of the basic skills of mechanical property of materials test, is mainly used for whether experimental material meets defined standard and research material
The performance of material.
Pipe line steel and stainless compound steel plate are a kind of double-level-metal steel plates as made of base and composite layer, are by two kinds
Or all very big metal composite of the difference such as two or more chemical components, mechanical property forms, clad steel plate substrate tensile sample adds
The problem of being most difficult to control in specimen size precision problem and process is most easily occurred that during work, processes improper appearance
Easily cause specimen size precision inaccurate, processing difficulties, the sample such as sample inclination process the improper standard that will affect testing inspection result
True property, or even sample is caused to scrap.More importantly for pipe line steel and stainless steel clad plate, composite bed thickness is
3mm is easy to cut off the substrate of clad steel plate under the conditions of existing processing technology, in process, causes tensile sample ruler
There is deviation in very little precision, and so that test result error even result mistake is occurred makes therefore, it is necessary to which tensile sample to be adjusted
Tensile sample is convenient for sample preparation, and is able to satisfy seizure test requirement.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of preparation methods of clad steel plate substrate tensile sample, to solve
The problems such as of the existing technology ineffective.
In order to solve the above technical problems, the technical solution adopted by the present invention is as follows：
A kind of clad steel plate substrate tensile sample, the length is 400mm, parallel segment length is 80mm, and arc radius is
25mm, sample marking distance 50mm.
Wherein, the clad steel plate is pipe line steel and stainless compound steel plate；Wherein, pipe line steel is base, with a thickness of 6
~50mm, stainless steel is composite layer, with a thickness of 1~5mm.
Wherein, the clad steel plate substrate tensile sample is tensile sample used in GB/T228.1 and ASTM A370.
Wherein, the gripping section width is 42~45mm, and parallel-segment width is 38mm.
Wherein, the gripping section and parallel-segment are 6~50mm with a thickness of clad steel plate thickness.
The preparation method of above-mentioned clad steel plate substrate tensile sample, it includes the following steps：
It (1) will be spare after clad steel plate surface clean decontamination；
(2) by the clad steel plate vertical milling in step (1) at lath-shaped standard tensile specimen；
(3) lath-shaped standard tensile specimen obtained in step (2) is processed into the stretching with shoulder with the mode for opening shoulder milling
Sample；
(4) by the excision of the composite layer of the tensile sample with shoulder obtained in step (3) to get.
In step (1), a length of 400mm of the clad steel plate, width 100mm, with a thickness of 6~50mm.
In step (1), the decontamination refers to the iron scale and dirt on removal clad steel plate surface.
In step (2), a length of 400mm of the lath-shaped standard tensile specimen, width is 42~45mm, with a thickness of 6~
50mm。
In step (3), in the tensile sample with shoulder, arc radius 25mm.
In step (3), in the tensile sample with shoulder, a length of 80mm of sample parallel-segment, width 38mm, with a thickness of
6~50mm.
In step (4), composite layer is cut off using wire cutting, cutting thickness is the thickness of composite layer；Wherein, cutting length
Degree is 80mm, clipping time 45min.
Beneficial effect：
Compared with prior art, the present invention has following advantage：
1, product of the present invention complies fully with national standard and international standard, and product of the present invention is also not required to additionally when detecting
Fixture, being directly placed into conventional cupping machine can be detected, convenient and efficient, not influence detection accuracy, can quickly and accurately into
Row tension test detects, actually the tensile sample of a kind of ideal pipe line steel and stainless compound steel plate substrate detection.
2, in existing processing method, processing length 400mm, machining area is too long, is easy to appear in cutting process curved
Bent, inclination etc. causes machining area plate size deviation occur, while being easy to cut steel plate composite layer unevenly, or even damage
Evil substrate of steel plate, to influence tension test；Improvement post-processing region is 80mm, and machining area is tension test parallel-segment area
Domain, machining area is short, is conducive to control accurate to dimension, guarantees the intact excision of steel plate composite layer, while retaining substrate of steel plate,
Ensure the integrality and accuracy of test data.Simultaneous processing process is cut at a slow speed using wire cutting, further facilitates processing ruler
Very little control guarantees machining accuracy.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of clad steel plate substrate tensile sample in the present invention；
In figure, a0- sample original thickness, 6~50mm；b0The original width of-sample parallel length, 38mm；L0- sample
Original gauge length, 50mm；The parallel segment length of Lc-sample, 80mm；Lt-sample total length, 400mm；C-sample holder section
Width, 42~45mm；R-sample arc radius, 25mm；
Fig. 2 is the photo of gained lath-shaped standard tensile specimen after vertical milling；
Fig. 3 is out the resulting photo at the tensile sample with shoulder after shoulder milling；
Fig. 4 is the photo of clad steel plate substrate tensile sample in the present invention.
Specific embodiment
Embodiment 1
The preparation method of clad steel plate substrate tensile sample as shown in Figure 1 is as follows：
(1) a length of 400mm, width 100mm are taken, with a thickness of the pipe line steel and stainless compound steel plate of 15.4mm, removal is multiple
It is spare after the iron scale and dirt of conjunction surface of steel plate；
(2) the clad steel plate vertical milling in step (1) is grown into 400mm, width 43mm, with a thickness of the lath-shaped of 15.4mm
Standard tensile specimen, as shown in Figure 2；
(3) lath-shaped standard tensile specimen obtained in step (2) is processed into the stretching with shoulder with the mode for opening shoulder milling
Sample；In tensile sample with shoulder, arc radius 25mm, a length of 80mm of sample parallel-segment, width 38mm, with a thickness of
15.4mm as shown in Figure 3.
(4) mode for using wire cutting, by the composite layer excision of the tensile sample with shoulder obtained in step (3) to get multiple
Close substrate of steel plate tensile sample；Wherein, thickness of the cutting thickness for composite layer, Cutting Length 80mm, clipping time are
45min。
The parameter for the clad steel plate substrate tensile sample that above-mentioned preparation method is prepared is as shown in table 1.
Table 1
As can be seen from Table 1, product of the present invention fully meets national standard and international standard.
Claims (8)
1. a kind of preparation method of clad steel plate substrate tensile sample, which is characterized in that it includes the following steps：
It (1) will be spare after clad steel plate surface clean decontamination；
(2) by the clad steel plate vertical milling in step (1) at lath-shaped standard tensile specimen；
(3) lath-shaped standard tensile specimen obtained in step (2) is processed into the tensile sample with shoulder with the mode for opening shoulder milling；
(4) by the excision of the composite layer of the tensile sample with shoulder obtained in step (3) to get.
2. preparation method according to claim 1, which is characterized in that in step (1), the clad steel plate is pipe line steel
And stainless compound steel plate.
3. preparation method according to claim 1, which is characterized in that in step (1), the clad steel plate it is a length of
400mm, width 100mm, with a thickness of 6~50mm.
4. preparation method according to claim 1, which is characterized in that in step (2), the lath-shaped standard tensile examination
A length of 400mm of sample, width is 42~45mm, with a thickness of 6~50mm.
5. preparation method according to claim 1, which is characterized in that in step (3), the tensile sample with shoulder
In, arc radius 25mm.
6. preparation method according to claim 1, which is characterized in that in step (3), the tensile sample with shoulder
In, a length of 80mm of sample parallel-segment, width 38mm, with a thickness of 6~50mm.
7. preparation method according to claim 1, which is characterized in that in step (4), using wire cutting by steel plate composite layer
Excision, cutting thickness is the thickness of composite layer.
8. preparation method according to claim 1, which is characterized in that in step (4), wherein Cutting Length 80mm is cut
Cutting the time is 45min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810821032.6A CN108871903A (en) | 2018-07-24 | 2018-07-24 | A kind of preparation method of clad steel plate substrate tensile sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810821032.6A CN108871903A (en) | 2018-07-24 | 2018-07-24 | A kind of preparation method of clad steel plate substrate tensile sample |
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| Publication Number | Publication Date |
|---|---|
| CN108871903A true CN108871903A (en) | 2018-11-23 |
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| CN201810821032.6A Pending CN108871903A (en) | 2018-07-24 | 2018-07-24 | A kind of preparation method of clad steel plate substrate tensile sample |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111289321A (en) * | 2020-02-27 | 2020-06-16 | 北京首钢股份有限公司 | Preparation process of sheet metal tensile sample |
| CN113959848A (en) * | 2021-09-29 | 2022-01-21 | 南京钢铁股份有限公司 | Method for detecting stretching performance of large-thickness structural steel |
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| KR20170007620A (en) * | 2015-07-09 | 2017-01-19 | 강명원 | Clad metal manufacturing method |
| CN107462451A (en) * | 2017-08-25 | 2017-12-12 | 中国科学院金属研究所 | Ion irradiation simulates the stress corrosion tensile sample and preparation method of neutron irradiation |
-
2018
- 2018-07-24 CN CN201810821032.6A patent/CN108871903A/en active Pending
Patent Citations (3)
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| CN104359729A (en) * | 2014-10-29 | 2015-02-18 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for reducing notch sensitivity in mechanical property test of titanium based intermetallic compounds |
| KR20170007620A (en) * | 2015-07-09 | 2017-01-19 | 강명원 | Clad metal manufacturing method |
| CN107462451A (en) * | 2017-08-25 | 2017-12-12 | 中国科学院金属研究所 | Ion irradiation simulates the stress corrosion tensile sample and preparation method of neutron irradiation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111289321A (en) * | 2020-02-27 | 2020-06-16 | 北京首钢股份有限公司 | Preparation process of sheet metal tensile sample |
| CN113959848A (en) * | 2021-09-29 | 2022-01-21 | 南京钢铁股份有限公司 | Method for detecting stretching performance of large-thickness structural steel |
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