CN110643793B - Method for testing distance between water spraying pipe opening of end quenching machine and sample support - Google Patents
Method for testing distance between water spraying pipe opening of end quenching machine and sample support Download PDFInfo
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- CN110643793B CN110643793B CN201910063013.6A CN201910063013A CN110643793B CN 110643793 B CN110643793 B CN 110643793B CN 201910063013 A CN201910063013 A CN 201910063013A CN 110643793 B CN110643793 B CN 110643793B
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- water
- pipe opening
- spraying pipe
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/55—Hardenability tests, e.g. end-quench tests
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
Abstract
The invention relates to a method for testing the distance between a water spray pipe opening of an end quenching machine and a sample support, which comprises the following steps: the first step is as follows: starting the end quenching machine, and opening a water valve switch to enable water flow to be sprayed out from a water spraying pipe opening of the end quenching machine; the second step is that: placing the water passing standard block on the sample support, and accurately centering the water passing standard block above the water spray pipe opening; the third step: taking down the water-passing mark block, placing the water-stopping mark block on the sample support, and accurately centering the water-stopping mark block above the water spray pipe opening; the fourth step: and taking down the water stop mark block, and judging the relative position between the water spraying pipe opening and the sample support according to the water spraying condition after the water passing mark block and the water stop mark block are placed. The device has the characteristics of simple structure, easiness in processing, simplicity and convenience in operation, visual inspection result, high cost performance and the like.
Description
Technical Field
The invention belongs to the technical field of space inspection, and relates to a method for inspecting the space between a water spray pipe opening of an end quenching machine and a sample support.
Background
Hardenability refers to the material characteristics characterized by the depth of the sample through-hardened layer and the hardness distribution under specified conditions, i.e., the ability to obtain the depth of the hardened layer when the steel is quenched. It represents the ability of the steel to undergo quenching. The end quench test method is a common method for measuring the hardenability of steel, and the measurement of the hardenability of steel by the end quench test method is clearly specified in the national standard GB/T225. In order to ensure the accuracy of the hardenability detection result, the relative position between the water spraying pipe opening of the end quenching machine and the sample support is required in the standard, and the distance between the water spraying pipe opening and the quenching end face of the sample is (12.5 +/-0.5) mm. However, the existing end quenching machine is not provided with a device for measuring the relative position between the water spraying pipe opening and the sample support, only a vernier caliper can be used for simple and rough measurement, and the accuracy of the measurement result is poor.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a method for testing the distance between the water spraying pipe orifice of the end quenching machine and the sample support, which has the characteristics of simple structure, easiness in processing, simplicity and convenience in operation, visual inspection result, high cost performance and the like, can quickly and accurately determine whether the relative position between the water spraying pipe orifice of the end quenching machine and the sample support meets the standard requirement or not, and avoids the influence on the accuracy of the test result of the end hardenability caused by the fact that the relative position between the pipe orifice and the support exceeds the standard requirement.
The technical scheme adopted by the invention for solving the technical problems is as follows: a method for testing the distance between a water spraying pipe opening of an end quenching machine and a sample support comprises the following steps:
the first step is as follows: starting the end quenching machine, and opening a water valve switch to enable water flow to be sprayed out from a water spraying pipe opening of the end quenching machine;
the second step is that: placing the water passing standard block on the sample support, accurately centering the water passing standard block above the water spray pipe opening, stopping the water column at the water spray pipe opening from spraying if the water passing standard block blocks the water spray pipe opening, and indicating that the relative position between the water spray pipe opening and the sample support is less than 109mm, namely the distance from the water spray pipe opening to the sample quenching end face is less than 12 mm; if the water passing mark block can not block the water spraying pipe opening, the water flow at the water spraying pipe opening is still sprayed out, and the relative position between the water spraying pipe opening and the sample support is more than 109mm, namely the distance from the water spraying pipe opening to the quenching end face of the sample is more than 12 mm;
the third step: taking down the water passing mark block, placing the water stopping mark block on the sample support, accurately centering the water stopping mark block above the water spraying pipe opening, stopping the water column at the water spraying pipe opening from spraying if the water spraying pipe opening is blocked by the water stopping mark block, and showing that the relative position between the water spraying pipe opening and the sample support is less than 110mm, namely the distance from the water spraying pipe opening to the quenching end face of the sample is less than 13 mm; if the water stop mark block can not block the water spraying pipe opening, the water flow at the water spraying pipe opening is still sprayed out, and the relative position between the water spraying pipe opening and the sample support is larger than 110mm, namely the distance from the water spraying pipe opening to the quenching end face of the sample is larger than 13 mm;
the fourth step: taking down the water stop mark block, closing a water valve switch, closing an end quenching machine, judging the relative position between a water spray pipe port and a sample support according to the water spray condition after the water guide mark block and the water stop mark block are placed, and when the water flow of the water guide mark block is placed and the water flow of the water stop mark block is stopped, the distance from the water spray pipe port to the quenching end face of the sample is (12.5 +/-0.5) mm; when water flow of the water passing mark block and the water stopping mark block is sprayed out, the distance from the nozzle of the water spraying pipe to the quenching end face of the sample is more than 13 mm; when the water flow of the water passing mark block and the water stopping mark block stops, the distance from the nozzle of the water spraying pipe to the quenching end face of the sample is less than 12 mm.
The invention has the positive effects that: the device has the characteristics of ingenious design, simple structure, convenience and high efficiency in field operation and the like, can quickly and accurately determine whether the relative position between the water spraying pipe orifice of the end quenching machine and the sample support meets the standard requirement, and avoids the influence on the accuracy of the tail end hardenability test result caused by the fact that the relative position between the pipe orifice and the support exceeds the standard requirement. Drawings
FIG. 1 is a graph showing the results of the test when the pitch is within a standard range;
FIG. 2 is a schematic diagram showing the inspection results when the pitch is larger than the maximum value;
FIG. 3 is a graph showing the results of the test when the pitch is less than the minimum.
In the figure: 1-a water-passing mark block and 2-a water-stopping mark block.
Detailed Description
The invention is further explained below with reference to the drawings and the embodiments.
Referring to fig. 1-3, a method for inspecting the distance between a water spraying pipe opening of an end quenching machine and a sample support comprises the following steps:
the first step is as follows: starting the end quenching machine, and opening a water valve switch to enable water flow to be sprayed out from a water spraying pipe opening of the end quenching machine;
the second step is that: placing the water passing standard block 1 on the sample support, accurately centering the water passing standard block 1 above the water spray pipe opening, stopping the water column at the water spray pipe opening from spraying if the water passing standard block 1 blocks the water spray pipe opening, and indicating that the relative position between the water spray pipe opening and the sample support is less than 109mm, namely the distance from the water spray pipe opening to the sample quenching end face is less than 12 mm; if the water passing mark block 1 can not block the water spraying pipe opening, the water flow at the water spraying pipe opening is still sprayed out, and the relative position between the water spraying pipe opening and the sample support is more than 109mm, namely the distance from the water spraying pipe opening to the quenching end face of the sample is more than 12 mm;
the third step: taking down the water passing mark block 1, placing the water stopping mark block 2 on the sample support, and accurately centering the water stopping mark block 2 above the water spraying pipe opening, wherein if the water spraying pipe opening is blocked by the water stopping mark block 2, the water column at the water spraying pipe opening stops spraying, the relative position between the water spraying pipe opening and the sample support is smaller than 110mm, namely the distance from the water spraying pipe opening to the sample quenching end face is smaller than 13 mm; if the water stop mark block 2 can not block the water spraying pipe opening, the water flow at the water spraying pipe opening is still sprayed out, the relative position between the water spraying pipe opening and the sample support is larger than 110mm, namely the distance from the water spraying pipe opening to the quenching end face of the sample is larger than 13 mm;
the fourth step: taking down the water stop mark block 2, closing a water valve switch, closing an end quenching machine, judging the relative position between a water spraying pipe port and a sample support according to the water spraying condition after the water guide mark block 1 and the water stop mark block 2 are placed, and when the water flow of the placed water guide mark block 1 is sprayed out and the water flow of the placed water stop mark block 2 is stopped, the distance from the water spraying pipe port to the quenching end face of the sample is (12.5 +/-0.5) mm; when water flows of the water passing standard block 1 and the water stopping standard block 2 are sprayed out, the distance from the water spraying pipe opening to the quenching end face of the sample is more than 13 mm; when the water flow of the water passing standard block 1 and the water stopping standard block 2 stops, the distance from the water spray pipe opening to the quenching end face of the sample is less than 12 mm.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. A method for testing the distance between a water spraying pipe opening of an end quenching machine and a sample support is characterized by comprising the following steps:
the first step is as follows: starting the end quenching machine, and opening a water valve switch to enable water flow to be sprayed out from a water spraying pipe opening of the end quenching machine;
the second step is that: placing the water passing standard block on the sample support, accurately centering the water passing standard block above the water spray pipe opening, stopping the water column at the water spray pipe opening from spraying if the water passing standard block blocks the water spray pipe opening, and indicating that the relative position between the water spray pipe opening and the sample support is less than 109mm, namely the distance from the water spray pipe opening to the sample quenching end face is less than 12 mm; if the water passing mark block can not block the water spraying pipe opening, the water flow at the water spraying pipe opening is still sprayed out, and the relative position between the water spraying pipe opening and the sample support is more than 109mm, namely the distance from the water spraying pipe opening to the quenching end face of the sample is more than 12 mm;
the third step: taking down the water passing mark block, placing the water stopping mark block on the sample support, accurately centering the water stopping mark block above the water spraying pipe opening, stopping the water column at the water spraying pipe opening from spraying if the water spraying pipe opening is blocked by the water stopping mark block, and showing that the relative position between the water spraying pipe opening and the sample support is less than 110mm, namely the distance from the water spraying pipe opening to the quenching end face of the sample is less than 13 mm; if the water stop mark block can not block the water spraying pipe opening, the water flow at the water spraying pipe opening is still sprayed out, and the relative position between the water spraying pipe opening and the sample support is larger than 110mm, namely the distance from the water spraying pipe opening to the quenching end face of the sample is larger than 13 mm;
the fourth step: taking down the water stop mark block, closing a water valve switch, closing an end quenching machine, judging the relative position between a water spray pipe port and a sample support according to the water spray condition after the water guide mark block and the water stop mark block are placed, and when the water flow of the water guide mark block is placed and the water flow of the water stop mark block is stopped, the distance from the water spray pipe port to the quenching end face of the sample is (12.5 +/-0.5) mm; when water flow of the water passing mark block and the water stopping mark block is sprayed out, the distance from the nozzle of the water spraying pipe to the quenching end face of the sample is more than 13 mm; when the water flow of the water passing mark block and the water stopping mark block stops, the distance from the nozzle of the water spraying pipe to the quenching end face of the sample is less than 12 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910063013.6A CN110643793B (en) | 2019-01-23 | 2019-01-23 | Method for testing distance between water spraying pipe opening of end quenching machine and sample support |
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| CN110643793B true CN110643793B (en) | 2021-08-13 |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6022646A (en) * | 1983-07-07 | 1985-02-05 | Masashi Hashiura | Equipment and method for measuring quench hardness by colorimetry |
| JPH04307317A (en) * | 1991-04-03 | 1992-10-29 | Nippon Sheet Glass Co Ltd | Measuring method of thickness of glass material layer |
| CN2911686Y (en) * | 2006-06-02 | 2007-06-13 | 山东建筑工程学院材料科学研究所 | Multiple-purpose end quenching testing machine |
| CN201059945Y (en) * | 2007-06-07 | 2008-05-14 | 扬动股份有限公司 | Fuel oil injector grease head highness checking tool |
| KR101336637B1 (en) * | 2011-10-06 | 2013-12-04 | 주식회사 동호 | Staff for measuring level of underground inclined section of drain manhole |
| CN102878887B (en) * | 2012-09-25 | 2014-12-03 | 鞍钢股份有限公司 | Method for detecting mounting precision of continuous casting secondary cooling water spraying device |
| CN103630036B (en) * | 2013-11-28 | 2016-03-30 | 广东韶钢松山股份有限公司 | A kind of measuring method checking jominy end quench test water spray height |
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