CN203534899U - Auxiliary device for improving measurement accuracy of Brinell hardness - Google Patents
Auxiliary device for improving measurement accuracy of Brinell hardness Download PDFInfo
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- CN203534899U CN203534899U CN201320666179.5U CN201320666179U CN203534899U CN 203534899 U CN203534899 U CN 203534899U CN 201320666179 U CN201320666179 U CN 201320666179U CN 203534899 U CN203534899 U CN 203534899U
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Abstract
An auxiliary device for improving the measurement accuracy of Brinell hardness relates to the Brinell hardness measurement of a metal material. The auxiliary device comprises a hardness indentation template in an even sheet shape, at least three regular octagon through holes are formed in the hardness indentation template, the distance between the center of each regular octagon through hole and the edge of the hardness indentation template is not less than 2.5a, and the distance between the centers of two adjacent regular octagon through holes is not less than 3a, wherein a is the length of the side of the regular octagon through hole. With the auxiliary device provided by the utility model, a person only needs to draw a regular octagon pattern on the surface of a sample by a marking pen and control the hardness indentation in the center of the regular octagon pattern during the test, therefore, the testing process is greatly simplified on the premise of meeting the measurement accuracy required by the national standard, and one template is suitable for the measurement of various samples, so that the auxiliary device is high in adaptation and practical value.
Description
Technical field
The utility model relates to the brineling of metal material, refers to particularly a kind of servicing unit that improves brineling precision.
Background technology
What in metal material hardness test job, be most widely used is plunging hardness test (Bu Shi, Rockwell, Vickers hardness etc.), and what it characterized is the ability that caused plastic yield while being pressed into because of foreign object is resisted in metal surface.Wherein, the area of indentation in brineling is larger, can reflect the average behavior of interior metal in a big way.Yet, because the area of indentation is large, at the material of impression surrounding, can produce obvious work hardening.For fear of work hardening, the data between adjacent two test points are impacted, regulation in the 7.7th of GB/T231.1-2009 < < metal material Brinell test > >: " arbitrary impression centre distance sample Edge Distance at least should be 2.5 times of impression mean diameter, and in two adjacent indentations, distance in the heart at least should be 3 times of impression mean diameter." (concrete data see the following form)
In actual test process, Indentation position is conventionally selected voluntarily by tester, and owing to lacking a comparatively desirable object of reference, the distance between impression is controlled more arbitrarily, often has the various deviations as shown in Fig. 1 of Figure of description part.It is embodied in 1) impression centre distance sample Edge Distance is excessively near; 2) hypotelorism in the heart in two adjacent indentations.In this case, the standardization of test job cannot be protected, and the precision of brineling can be subject to very large negative effect.
Utility model content
Technical problem to be solved in the utility model is just to provide a kind of servicing unit that improves brineling precision, can be good at controlling distance in the heart in impression centre distance sample Edge Distance in brineling and two adjacent indentations, improve brineling precision.
For solving the problems of the technologies described above, a kind of servicing unit that improves brineling precision that the utility model provides, comprise indentation hardness template, described indentation hardness template is lamellar uniformly, which is provided with at least three octagon through holes, the distance of the center of each octagon through hole and indentation hardness template edge is not less than 2.5a, and the distance at the center of adjacent two octagon through holes is not less than 3a, and a is the length of side of octagon through hole.
In technique scheme, in described indentation hardness template, by 3 * 5, be evenly equipped with 15 octagon through holes.
Further, the length of side a of described octagon through hole is 2.7mm, the distance of the center of submarginal octagon through hole and indentation hardness template edge is 8mm, the distance at the center of adjacent two octagon through holes is 10mm, take and meets ball hardness number as the test request of 400～600HBW10/30000 sample; Or, the length of side a of described octagon through hole is 6mm, the distance of the center of submarginal octagon through hole and indentation hardness template edge is 15mm, the distance at the center of adjacent two octagon through holes is 18mm, take and meets ball hardness number as the test request of 100～400HBW10/30000 sample.
The beneficial effects of the utility model are: utilize servicing unit of the present utility model, only need with marking pen, draw octagon pattern at specimen surface, during test, indentation hardness is controlled to octagon pattern center, under the prerequisite of measuring accuracy that meets national standard requirement, greatly simplified testing process, and a template is applicable to the measurement of multiple sample, there is very high adaptability and practical value.
Accompanying drawing explanation
Fig. 1 selectes by tester the schematic diagram that Indentation position is prone to deviation in prior art voluntarily;
Fig. 2 is the structural representation of an embodiment of the utility model;
Fig. 3 is the structural representation of another embodiment of the utility model;
Fig. 4～Fig. 5 utilizes the utility model to carry out the process flow diagram of Indentation position location;
In figure: 1-indentation hardness template, 2-octagon through hole.
Embodiment
Below in conjunction with accompanying drawing, specific embodiment of the utility model is described in further detail:
Fig. 1 has illustrated in prior art and has selected voluntarily by tester the situation that Indentation position is prone to deviation, because being described in detail in background technology part, in this, repeated no more.
As shown in Figures 2 and 3, the utility model improves the servicing unit of brineling precision, comprise indentation hardness template 1, it is lamellar uniformly that indentation hardness template 1 is, which is provided with at least three length of sides is the octagon through hole 2 of a, the distance at the center of each octagon through hole 2 and indentation hardness template 1 edge is not less than 2.5a, and the distance at the center of adjacent two octagon through holes 2 is not less than 3a.
Embodiment mono-
As shown in Figure 2, in this indentation hardness template 1, by 3 * 5, be evenly equipped with 15 octagon through holes 2, indentation hardness template 1 is the plastic formwork of long L=56mm, wide W=36mm, thick 1mm, and the length of side a of octagon through hole 2 is 2.7mm.The distance L 1=W1=8mm at the center of submarginal octagon through hole 2 and indentation hardness template 1 edge, the distance L 2=W2=10mm at the center of adjacent two octagon through holes 2.This specification is applicable to the sample that ball hardness number is 400～600HBW10/30000.
Embodiment bis-
As shown in Figure 3, in this indentation hardness template 1, by 3 * 5, be evenly equipped with 15 octagon through holes 2, indentation hardness template 1 is the plastic formwork of long L=102mm, wide W=66mm, thick 1mm, and the length of side a of octagon through hole 2 is 6mm.The distance L 1=W1=15mm at the center of submarginal octagon through hole 2 and indentation hardness template 1 edge, the distance L 2=W2=18mm at the center of adjacent two octagon through holes 2.This specification is applicable to the sample that ball hardness number is 100～400HBW10/30000.
As shown in Figure 4 and Figure 5, the process of utilizing the utility model to carry out Indentation position location is: before on-test, according to the hardness number of estimating, select the servicing unit of dimension, be attached to specimen surface, guarantee adjacent two edges of indentation hardness template and two justified margins of sample or be positioned at sample edge line; Then on the surface of sample, with marking pen, draw octagon pattern, because the distance setting of octagon pattern center point on sample meets the regulation of GB/T231.1-2009 standard, while therefore testing, indentation hardness is controlled to octagon pattern center.
Claims (4)
1. a servicing unit that improves brineling precision, it is characterized in that: comprise indentation hardness template (1), described indentation hardness template (1) is lamellar uniformly, which is provided with at least three octagon through holes (2), the distance at the center of each octagon through hole (2) and indentation hardness template (1) edge is not less than 2.5a, the distance at the center of adjacent two octagon through holes (2) is not less than 3a, and a is the length of side of octagon through hole (2).
2. a kind of servicing unit that improves brineling precision according to claim 1, is characterized in that: described indentation hardness template (1) is upper is evenly equipped with 15 octagon through holes (2) by 3 * 5.
3. a kind of servicing unit that improves brineling precision according to claim 2, it is characterized in that: the length of side a of described octagon through hole (2) is 2.7mm, the distance at the center of submarginal octagon through hole (2) and indentation hardness template (1) edge is 8mm, and the distance at the center of adjacent two octagon through holes (2) is 10mm.
4. a kind of servicing unit that improves brineling precision according to claim 2, it is characterized in that: the length of side a of described octagon through hole (2) is 6mm, the distance at the center of submarginal octagon through hole (2) and indentation hardness template (1) edge is 15mm, and the distance at the center of adjacent two octagon through holes (2) is 18mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320666179.5U CN203534899U (en) | 2013-10-25 | 2013-10-25 | Auxiliary device for improving measurement accuracy of Brinell hardness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320666179.5U CN203534899U (en) | 2013-10-25 | 2013-10-25 | Auxiliary device for improving measurement accuracy of Brinell hardness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203534899U true CN203534899U (en) | 2014-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320666179.5U Expired - Fee Related CN203534899U (en) | 2013-10-25 | 2013-10-25 | Auxiliary device for improving measurement accuracy of Brinell hardness |
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| Country | Link |
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| CN (1) | CN203534899U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872302A (en) * | 2017-03-24 | 2017-06-20 | 陕西瑞之源农牧科技有限公司 | Feed composite particles carrier Determination of Hardness device and hardness balance's assay method |
-
2013
- 2013-10-25 CN CN201320666179.5U patent/CN203534899U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872302A (en) * | 2017-03-24 | 2017-06-20 | 陕西瑞之源农牧科技有限公司 | Feed composite particles carrier Determination of Hardness device and hardness balance's assay method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170718 Address after: 430083, Gate No. 2, Qingshan District, Hubei, Wuhan Patentee after: Wuhan iron and Steel Company Limited Address before: 430080 Wuhan, Hubei Friendship Road, No. 999, Wuchang Patentee before: Wuhan Iron & Steel (Group) Corp. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20191025 |