CN111141632A - Method for rapidly detecting abrasion resistance of surfacing layer - Google Patents
Method for rapidly detecting abrasion resistance of surfacing layer Download PDFInfo
- Publication number
- CN111141632A CN111141632A CN202010058165.XA CN202010058165A CN111141632A CN 111141632 A CN111141632 A CN 111141632A CN 202010058165 A CN202010058165 A CN 202010058165A CN 111141632 A CN111141632 A CN 111141632A
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- layer
- surfacing
- sample
- wear
- cutting
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000005299 abrasion Methods 0.000 title claims description 22
- 238000012360 testing method Methods 0.000 claims abstract description 43
- 238000005520 cutting process Methods 0.000 claims abstract description 32
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 238000003466 welding Methods 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims abstract description 6
- 238000005496 tempering Methods 0.000 claims abstract description 6
- 239000010410 layer Substances 0.000 claims description 68
- 239000002344 surface layer Substances 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 15
- 230000004580 weight loss Effects 0.000 claims description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000005282 brightening Methods 0.000 claims description 4
- 238000005498 polishing Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 abstract description 2
- 238000005552 hardfacing Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
Abstract
The invention discloses a method for rapidly detecting the wear resistance of a surfacing layer, and relates to a method for detecting welding quality. The method comprises the steps of cutting off the surface overlaying layer by a linear cutting method (or a cutting method which does not cause hardening and heating of a cutting surface and the like) to expose the tempering wear-resistant layer on the surface of a sample to be detected, and then carrying out wear resistance detection. The method greatly shortens the testing period of the wear resistance of the wear-resistant surfacing layer, and economically and effectively predicts the service performance of the surfacing wear-resistant layer by treating the wear resistance of different wear-resistant layers differently; besides, in the wear-resistant detection process, no wire cutting and wear-resistant testing machine equipment is arranged, no additional detection and analysis equipment is added, the detection cost is reduced, and the improvement of the economic benefits of enterprises is facilitated.
Description
Technical Field
The invention relates to a method for detecting welding quality, in particular to a method for rapidly detecting the wear resistance of a surfacing layer.
Background
The wear resistance of the detection member is determined based on the weight loss in the wear condition over a period of time. The metal wear-resistant component has certain wear in the relative motion process with the abrasive particles, the wear weight loss of the wear-resistant component is the standard for measuring the wear resistance of the wear-resistant component along with the time, and the smaller the wear weight loss is, the better the wear resistance is.
However, because the build-up welding is performed through the inner and outer processes, the inner layer is subjected to the annealing action of the outer layer, and the heat treatment state of the inner layer is different from that of the outermost layer, so that the wear resistance of the inner layer and the wear resistance of the outer layer are greatly different. In the past, the wear resistance is detected from outside to inside, and the time and the resources are consumed.
Disclosure of Invention
The invention aims to provide a method for rapidly detecting the wear resistance of a surfacing layer, which can rapidly, accurately and economically detect the service performance of the wear-resistant surfacing layer and can avoid the situation that the wear resistance of the whole surfacing layer cannot be truly reflected by only detecting the performance of a butt welding surface layer. The method solves the problem of rapid detection of the wear resistance of the overlaying layer and saves the cost; the method solves the problem of the judgment of the welding material system for surfacing.
The purpose of the invention is realized by the following technical scheme:
a method for rapidly detecting the wear resistance of a weld overlay, the method comprising the following detection processes:
1) preparing a sample to be tested on the surface layer, preparing the sample according to the requirements of a wet abrasion test, cutting the sample on the surfacing layer by using wire cutting, polishing and brightening the surface of the surfacing layer by using a grinding wheel, taking the surface layer as a reference surface, and taking the size of the sample 12 x 27 x 55mm and the 12mm side in the thickness direction of the surfacing layer at the position of the surfacing layer (1);
2) preparing a sub-surface layer sample to be tested, preparing the sample according to the requirements of a wet abrasion test, cutting the sample on the surfacing layer by using wire cutting, polishing and brightening the surface of the surfacing layer by using a grinding wheel, and taking the sample size (15-17) × 27 × 55mm by taking the surface layer as a reference surface, wherein the 15mm edge is in the thickness direction of the surfacing layer; then cutting off (3-5) mm of surfacing metal comprising the surface layer by a wire cutting method, wherein the surface to be detected is positioned on the position of the surfacing subsurface tempering surfacing layer (2), and the size of the residual sample is 12 x 27 x 55mm, so that the surfacing subsurface layer is exposed and marked to be detected;
3) cleaning a sample, and removing oil stain of linear cutting by using acetone; measuring the weight of the sample before testing and recording;
4) performing abrasion test, mounting samples, and performing abrasion test respectively for 10-60 min; after the test is finished, washing the sample by alcohol, drying, storing for 24 hours in a dry environment, measuring the weight and recording; the weight before the test minus the weight after the test is the abrasion weight loss of the sample
；
5) And (3) comparing the wear loss of the surfacing surface layer and the sub-surface layer prepared by two or more welding materials subjected to the wear test, determining the wear resistance of the surfacing layer, and comparing the quality of the surfacing material.
The invention has the advantages and effects that:
the method comprises the steps of detecting the wear resistance of the surfacing layer, the tempering wear-resistant layer and the dilution surfacing layer from the outside and the inside, cutting off the surfacing layer by a linear cutting method (or a cutting method which does not cause hardening and heating of a cutting surface and the like) to expose the tempering wear-resistant layer on the surface of a sample to be detected, and then detecting the wear resistance. The method greatly shortens the testing period of the wear resistance of the wear-resistant surfacing layer, and economically and effectively predicts the service performance of the surfacing wear-resistant layer by treating the wear resistance of different wear-resistant layers differently; besides, in the wear-resistant detection process, no wire cutting and wear-resistant testing machine equipment is arranged, no additional detection and analysis equipment is added, the detection cost is reduced, and the improvement of the economic benefits of enterprises is facilitated.
Drawings
FIG. 1 is a cross-sectional schematic view of a hardfacing layer.
The attached drawings are as follows: the surface surfacing layer 1, the tempering surfacing layer 2, the transition layer 3 and the body material 4.
Detailed Description
The present invention will be described in detail with reference to the embodiments shown in the drawings.
Referring to fig. 1, the cross section of the hardfacing layer includes a surface hardfacing layer 1, a temper hardfacing layer 2, a transition layer 3, and a body material 4.
Example 1
1. Samples (Fe-Cr-C-Mo based weld overlay and Fe-Cr-C-Nb based weld overlay) to be tested were prepared on the surface layer. A sample may be prepared according to the wet abrasion test requirements, and the sample may be cut out on the build-up layer by wire cutting (as shown in fig. 1, the build-up surface layer is at position 1), the build-up layer surface is polished by a grinding wheel, and the sample size is taken as 12 × 27 × 55mm with the surface layer as a reference surface, and the 12mm side is taken in the thickness direction of the build-up layer.
2. And preparing a subsurface layer sample to be tested. The test piece can be prepared according to the requirements of a wet abrasion test, the test piece is cut on the overlaying layer by using wire cutting, the surface of the overlaying layer is polished to be bright by using a grinding wheel, the size of the test piece is 15 × 27 × 55mm by taking the surface layer as a reference surface, and the 15mm side is arranged in the thickness direction of the overlaying layer. Then, the wire cutting method cuts off 3mm of overlay metal comprising the surface layer (as shown in fig. 1, the surface to be measured is at the position of the overlay subsurface layer 2), and the size of the residual sample is 12 × 27 × 55mm, so that the overlay subsurface layer is exposed and marked to be measured.
3. The sample is washed. And removing oil stain of the linear cutting by using acetone. The weight of the sample was measured and recorded before the test.
4. And (5) wear testing. The test specimens were mounted and subjected to wet abrasion tests for 10 min. After the test, the sample is washed with alcohol, dried, stored in a dry environment for 24 hours, and the weight is measured and recorded. After subtracting the weight after the experiment from the weight before the experiment, the weight loss of the surface layer and the sub-surface layer of the Fe-Cr-C-Mo series surfacing material is 0.226g and 0.235g, and the weight loss of the surface layer and the sub-surface layer of the Fe-Cr-C-Mo series surfacing material is 0.23g and 0.295 g.
5. Compared with the abrasion loss of the surface layer and the sub-surface layer of the Fe-Cr-C-Mo surfacing material, the abrasion loss of the surface layer and the sub-surface layer of the Fe-Cr-C-Mo surfacing material is small, and the relative wear resistance is good.
Example 2
1. Samples (Fe-Cr-C-Mo based weld overlay and Fe-Cr-C-Nb based weld overlay) to be tested were prepared on the surface layer. A sample may be prepared according to the wet abrasion test requirements, and the sample may be cut out on the build-up layer by wire cutting (as shown in fig. 1, the build-up surface layer is at position 1), the build-up layer surface is polished by a grinding wheel, and the sample size is taken as 12 × 27 × 55mm with the surface layer as a reference surface, and the 12mm side is taken in the thickness direction of the build-up layer.
2. And preparing a subsurface layer sample to be tested. The test piece can be prepared according to the requirements of the wet abrasion test, the test piece is cut on the overlaying layer by using wire cutting, the surface of the overlaying layer is polished to be bright by using a grinding wheel, and the size of the test piece is 17 × 27 × 55mm by taking the surface layer as a reference surface, and the 15mm side is arranged in the thickness direction of the overlaying layer. Then, the wire cutting method cuts off 5mm of overlay metal including the surface layer (as shown in fig. 1, the surface to be measured is at the position of the overlay subsurface layer 2), and the size of the residual sample is 12 × 27 × 55mm, so that the overlay subsurface layer is exposed and marked to be measured.
3. The sample is washed. And removing oil stain of the linear cutting by using acetone. The weight of the sample was measured and recorded before the test.
4. And (5) wear testing. The samples were mounted and subjected to wet abrasion wear tests for 60 min. After the test, the sample is washed with alcohol, dried, stored in a dry environment for 24 hours, and the weight is measured and recorded. After subtracting the post-test weight from the pre-test weight, the weight loss of the surface layer and the subsurface layer of the Fe-Cr-C-Mo surfacing material is 0.68g and 1.29g, and the weight loss of the surface layer and the subsurface layer of the Fe-Cr-C-Mo surfacing material is 0.69g and 1.62 g.
5. Compared with the abrasion loss of the surface layer and the sub-surface layer of the Fe-Cr-C-Mo surfacing material, the abrasion loss of the surface layer and the sub-surface layer of the Fe-Cr-C-Mo surfacing material is small, and the relative wear resistance is good.
Claims (1)
1. A method for rapidly detecting the wear resistance of a weld overlay, which is characterized by comprising the following detection processes:
1) preparing a sample to be tested on the surface layer, preparing the sample according to the requirements of a wet abrasion test, cutting the sample on the surfacing layer by using wire cutting, polishing and brightening the surface of the surfacing layer by using a grinding wheel, taking the surface layer as a reference surface, and taking the size of the sample 12 x 27 x 55mm and the 12mm side in the thickness direction of the surfacing layer at the position of the surfacing layer (1);
2) preparing a sub-surface layer sample to be tested, preparing the sample according to the requirements of a wet abrasion test, cutting the sample on the surfacing layer by using wire cutting, polishing and brightening the surface of the surfacing layer by using a grinding wheel, and taking the sample size (15-17) × 27 × 55mm by taking the surface layer as a reference surface, wherein the 15mm edge is in the thickness direction of the surfacing layer; then cutting off (3-5) mm of surfacing metal comprising the surface layer by a wire cutting method, wherein the surface to be detected is positioned on the position of the surfacing subsurface tempering surfacing layer (2), and the size of the residual sample is 12 x 27 x 55mm, so that the surfacing subsurface layer is exposed and marked to be detected;
3) cleaning a sample, and removing oil stain of linear cutting by using acetone; measuring the weight of the sample before testing and recording;
4) performing abrasion test, mounting samples, and performing abrasion test respectively for 10-60 min; after the test is finished, washing the sample by alcohol, drying, storing for 24 hours in a dry environment, measuring the weight and recording;the weight before the test minus the weight after the test is the abrasion weight loss of the sample
；
5) And (3) comparing the wear loss of the surfacing surface layer and the sub-surface layer prepared by two or more welding materials subjected to the wear test, determining the wear resistance of the surfacing layer, and comparing the quality of the surfacing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010058165.XA CN111141632B (en) | 2020-01-19 | 2020-01-19 | Method for rapidly detecting wear resistance of surfacing layer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010058165.XA CN111141632B (en) | 2020-01-19 | 2020-01-19 | Method for rapidly detecting wear resistance of surfacing layer |
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| Publication Number | Publication Date |
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| CN111141632A true CN111141632A (en) | 2020-05-12 |
| CN111141632B CN111141632B (en) | 2023-11-17 |
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Citations (10)
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|---|---|---|---|---|
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| CN111141632B (en) | 2023-11-17 |
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