CN101718638A - Method for sampling from long-axle workpieces by high frequency quenching metallographic examination - Google Patents
Method for sampling from long-axle workpieces by high frequency quenching metallographic examination Download PDFInfo
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- CN101718638A CN101718638A CN200810155567A CN200810155567A CN101718638A CN 101718638 A CN101718638 A CN 101718638A CN 200810155567 A CN200810155567 A CN 200810155567A CN 200810155567 A CN200810155567 A CN 200810155567A CN 101718638 A CN101718638 A CN 101718638A
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Abstract
The invention discloses a method for sampling from long-axle workpieces by high frequency quenching metallographic examination, belonging to the technical field of electromechanical device manufacture and aiming to overcome the defect of the damage of the high frequency quenching metallographic examination in the traditional long-axle workpieces to the workpieces. In each bath production, a small block of material workpiece with the same material as the workpieces is taken as a sample; the excircle of the material workpiece is processed to the size completely same as that of the excircle of the workpiece; the material workpiece is arranged between two aluminum bars; after clamped with the sample, the overall dimension of the aluminum bars is ensured to be completely same as the size of an actual workpiece; in the intermediate-high quenching, an aluminum material does not generate magnetoelectric effect, thus the aluminum material can be reused; and the material of a workpiece sample clamped between the aluminum bars is same as that of the workpiece and parameters of the workpiece sample during quenching are also same as the parameters of the actual workpiece, thus the problem of batch workpieces can be found by analyzing the workpiece sample.
Description
Technical field
The present invention relates to the method for quenching metal lographic examination sampling in a kind of long-axle workpieces, particularly a kind of method of long-axle workpieces medium-high frequency quenching metal lographic examination sampling.Belong to electromechanical equipment manufacturing technology field.
Background technology
The long-axle workpieces of making in enormous quantities, behind the underway high-frequency quenching, often must survey sample its batch, so that the discovery quality problems, or quality improved targetedly, wherein when doing metallographic examination, must destroy with convenience sampling associated workpiece, so adopt the method for this direct sampling can cause certain waste unavoidably, simultaneously, round of visits is long and cumbersome.
Summary of the invention
In order to overcome existing long-axle workpieces medium-high frequency quenching back metal lographic examination sampling workpiece is destroyed, thereby cause the defective of certain waste, simultaneously, also be in order to overcome existing sampling method trouble and the long defective of round of visits, to the present invention proposes a kind of method of indirect sampling.
The technical solution adopted in the present invention is: in every batch of production, get a fritter and workpiece material identical materials workpiece is made sample, its cylindrical is made the size that equates fully with the workpiece size cylindrical, and on length, be significantly shorter than the physical length of workpiece, concrete length gets final product with suitable, simultaneously it is installed between two aluminium bars, behind aluminium bar and the sample clamping, its physical dimension should be just the same with the practical work piece size, because in medium-high frequency was quenched, alumina based material did not produce magnetoelectric effect, so, can use repeatedly, and be clamped in workpiece sample between the aluminium material charge bar, because identical with workpiece on material, the technological parameter that adopts during quenching is also identical with practical work piece, so, can search the problem that batch workpiece exists by analyzing the workpiece sample.
Problem.
Beneficial effect is: during sampling, need not so reduced corresponding waste and loss, reduce manufacturing cost to the destruction of workpiece.Simultaneously, sampling is also convenient, and the sample period is shorter.
Description of drawings
Accompanying drawing is a schematic diagram of the present invention
Shown in the figure: 1, go up aluminium bar; 2, workpiece sample; 3, following aluminium bar
Embodiment
Workpiece sample (2) is by the internal and external threads between last aluminium bar (1) and the following aluminium bar (3), be installed together tightly, the physical dimension of three after installation is identical with the workpiece size of waiting to quench, wherein the material of workpiece sample (2) is identical with workpiece to be quenched, under identical technological parameter, above-mentioned three's assembly is installed on the lathe of medium-high frequency, after technology in accordance with regulations and parameter are made Quenching Treatment, take off workpiece sample (2), to its metallographic examination, go to search the quality problems of batch workpiece.
Claims (1)
1. the method for long-axle workpieces medium-high frequency quenching metal lographic examination sampling, it is characterized in that: workpiece sample (2) is by the internal and external threads between last aluminium bar (1) and the following aluminium bar (3), be installed together tightly, the physical dimension of three after installation is identical with the workpiece size of waiting to quench, wherein the material of workpiece sample (2) is identical with workpiece to be quenched, under identical technological parameter, above-mentioned three's assembly is installed on the lathe of medium-high frequency, after technology in accordance with regulations and parameter are made Quenching Treatment, take off workpiece sample (2), to its metal lographic examination sampling, the quality problems of removing to search batch workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810155567A CN101718638A (en) | 2008-10-09 | 2008-10-09 | Method for sampling from long-axle workpieces by high frequency quenching metallographic examination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810155567A CN101718638A (en) | 2008-10-09 | 2008-10-09 | Method for sampling from long-axle workpieces by high frequency quenching metallographic examination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101718638A true CN101718638A (en) | 2010-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810155567A Pending CN101718638A (en) | 2008-10-09 | 2008-10-09 | Method for sampling from long-axle workpieces by high frequency quenching metallographic examination |
Country Status (1)
| Country | Link |
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| CN (1) | CN101718638A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435707A (en) * | 2011-08-31 | 2012-05-02 | 长城汽车股份有限公司 | Engine crankshaft nitriding quality inspection method |
| CN114323732A (en) * | 2021-12-20 | 2022-04-12 | 宝钢轧辊科技有限责任公司 | Method for sampling roller sample |
-
2008
- 2008-10-09 CN CN200810155567A patent/CN101718638A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435707A (en) * | 2011-08-31 | 2012-05-02 | 长城汽车股份有限公司 | Engine crankshaft nitriding quality inspection method |
| CN102435707B (en) * | 2011-08-31 | 2015-02-04 | 长城汽车股份有限公司 | Engine crankshaft nitriding quality inspection method |
| CN114323732A (en) * | 2021-12-20 | 2022-04-12 | 宝钢轧辊科技有限责任公司 | Method for sampling roller sample |
| CN114323732B (en) * | 2021-12-20 | 2023-04-28 | 宝钢轧辊科技有限责任公司 | Sampling method for roller sample |
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Open date: 20100602 |