CN107884295A - A kind of nailing nail tip hardness quick determination method - Google Patents
A kind of nailing nail tip hardness quick determination method Download PDFInfo
- Publication number
- CN107884295A CN107884295A CN201710970322.2A CN201710970322A CN107884295A CN 107884295 A CN107884295 A CN 107884295A CN 201710970322 A CN201710970322 A CN 201710970322A CN 107884295 A CN107884295 A CN 107884295A
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- Prior art keywords
- nailing
- hardness
- nail tip
- pressure
- determination method
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- 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
- G01N3/40—Investigating hardness or rebound hardness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0076—Hardness, compressibility or resistance to crushing
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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)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to nailing nail tip hardness quick determination method, comprise the following steps：(1), nailing (1) is put into mould (2) and the nail tip of nailing (1) is stretched out from mould (2)；(2), mould (2) is placed on standard block of hardness (3) and makes the nail tip of nailing (1) towards standard block of hardness (3)；(3), forcing press (4) presses according to the pressure, the frequency and stroke adjusted on nailing (1), the nail tip of nailing (1) is entered under the effect of the pressure in standard block of hardness (3)；(4), removal pressure, nailing (1) is taken out from standard block of hardness (3), and nailing (1) and exemplar is contrasted, to judge the quality condition of nailing (1).This method is directly perceived accurate, it is quick, failure test need not be carried out and cost is low.
Description
Technical field
The invention belongs to detection technique field, is related to a kind of nailing nail tip hardness detection method, and in particular to a kind of nailing
Nail tip hardness quick determination method.
Background technology
The nailing class product produced in enormous quantities for needs to its nail tip hardness, it is necessary to detect, to determine that nailing is followed closely
The quality of point.
But nailing nail tip hardness determination is generally to carry out destructive detection at present, not only need to carry out destructive testing,
Test method is complicated, and not directly perceived enough.Simultaneously as needing to carry out destructive testing, therefore, its detection speed is slow, and into
This is higher.
Or carry out metallographic detection.But the cost for carrying out metallographic detection is higher, and the profit margin of nailing is natively
Than relatively low, it can seriously increase the cost of enterprise using metallographic detection.
In view of the above-mentioned technological deficiency of prior art, there is an urgent need to develop a kind of new nailing nail tip hardness determination side
Method.
The content of the invention
It is an object of the invention to overcome shortcoming present in prior art, there is provided a kind of nailing nail tip hardness quick detection
Method, this method is directly perceived accurate, it is quick, failure test need not be carried out and cost is low.
To achieve these goals, the present invention provides following technical scheme：
A kind of nailing nail tip hardness quick determination method, it is characterised in that comprise the following steps：
(1), nailing is put into mould and the nail tip of the nailing is stretched out from the mould；
(2), the mould is placed on standard block of hardness and makes the nail tip of the nailing towards the standard block of hardness；
(3), forcing press presses according to the pressure, the frequency and stroke adjusted on the nailing, makes the nail of the nailing
Point enters in the standard block of hardness under the effect of the pressure；
(4), removal pressure, the nailing is taken out from the standard block of hardness, and the nailing and exemplar is contrasted, with
Judge the quality condition of the nailing.
Further, wherein, the mould is cylindrical type mould, has the cylindrical hole passed through for the nailing in it.
Further wherein, the standard block of hardness is HRC30 standards block of hardness.
Yet further, wherein, the pressure in the step is 50N~2000N, the frequency is 1 beat/min, stroke is
0.1mm~8mm.
Wherein, for the nailing that bar footpath is 3.0mm, the pressure in the step (3) is 50N~500N, the frequency be 1 time/
Minute, stroke are 0.1mm~5mm.
For the nailing that bar footpath is 3.3mm, the pressure in the step (3) is 100N~1000N, the frequency is 1 beat/min
Clock, stroke are 0.1mm~6mm.
For the nailing that bar footpath is 3.7mm, the pressure in the step (3) is 500N~1000N, the frequency is 1 beat/min
Clock, stroke are 0.1mm~7mm.
For the nailing that bar footpath is 4.0mm, the pressure in the step (3) is 1000N~2000N, the frequency is 1 beat/min
Clock, stroke are 0.1mm~8mm.
Compared with existing detection method, nailing nail tip hardness quick determination method of the invention has following Advantageous
Effect：
1st, it is directly perceived accurate：Can visual inspection product be stressed after deformation, disclose the close of compressive deformation and decarburization
Relation, accuracy of judgement degree are high (reaching 99.999%)；
2nd, it is quick：Judge that cycle time shortens 60 times (1/60) than metallographic detection；
3rd, without failure test：For qualified products, destructiveness is not produced；
4th, cost is extremely low：Detect and contrast with metallographic, testing cost reduces by more than 95%.
Brief description of the drawings
Fig. 1 is the flow chart of the nailing nail tip hardness quick determination method of the present invention.
Schematic diagram when Fig. 2 is the nailing nail tip hardness quick determination method detection nailing using the present invention.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples, and the content of embodiment is not as the guarantor to the present invention
Protect the limitation of scope.
The present invention relates to a kind of nailing nail tip intensity quick determination method, it is by quantitative pressure and rated travel to nailing
Product tip hardness strength is intuitively detected.
Fig. 1 shows the flow chart of the nailing nail tip hardness quick determination method of the present invention.As shown in figure 1, the present invention
Nailing nail tip hardness quick determination method comprises the following steps：
First, as shown in Fig. 2 nailing 1 is put into mould 2 and the nail tip of the nailing 1 is stretched from the mould 2
Go out, can be extruded in order to the nail tip of the nailing 1 from the mould 2.
In the present invention, it is preferred to which the mould 2 is cylindrical type mould, there is the cylinder passed through for the nailing 1 in it
Shape hole.By the mould 2, it can ensure that the nailing 1 is preferably pressed, without being deformed at middle part etc., so as to
It is easy to preferably detect the intensity of nail tip.
Secondly, as shown in Fig. 2 the mould 2 is placed on standard block of hardness 3 and makes the nail tip direction of the nailing 1
The standard block of hardness 3, in order to when being pressed to the nailing 1, it is hard that the nail tip of the nailing 1 can be deep into the standard
Spend in block 3.
In the present invention, it is preferred to the standard block of hardness 3 is HRC30 standards block of hardness.This standard block of hardness can
Meet the detection demand of common nailing.
Then, as shown in Fig. 2 the pressure head of forcing press 4 is placed on the nailing 1, in order to pass through the forcing press 4
Apply pressure on the nailing 2.Wherein, forcing press 4 according to the pressure, the frequency and stroke adjusted on the nailing 1
Pressure, the nail tip of the nailing 1 is set to enter under the effect of the pressure in the standard block of hardness 3.
In the present invention, different according to the type of the nailing 1, the pressure, the frequency and stroke have different parameters.
Preferably, the pressure is 50N~2000N, the frequency is 1 beat/min, stroke is 0.1mm~8mm.
Meanwhile more preferably, for the nailing that bar footpath is 3.0mm, the pressure is 50N~500N, the frequency is 1 beat/min
Clock, stroke are 0.1mm~5mm.For the nailing that bar footpath is 3.3mm, the pressure is 100N~1000N, the frequency is 1 beat/min
Clock, stroke are 0.1mm~6mm.For the nailing that bar footpath is 3.7mm, the pressure is 500N~1000N, the frequency is 1 beat/min
Clock, stroke are 0.1mm~7mm.For the nailing that bar footpath is 4.0mm, the pressure is 1000N~2000N, the frequency is 1 beat/min
Clock, stroke are 0.1mm~8mm.
Finally, removal pressure, takes out the nailing 1 from the standard block of hardness 3, and by the nailing 1 and exemplar pair
Than to judge the quality condition of the nailing 1.
In the present invention, the nail tip quality of the nailing 1 is judged according to the deformation of the nail tip of the nailing 1, also
It is hardness.Specifically, deformation is divided into three kinds：
A classes：Tip surface gross visualization mays be seen indistinctly winged skin (representing slight decarburization), and it represents that nail tip quality is slight not
It is good；
B classes：The visible flexural deformation of tip naked eyes, without skin (representing heavier decarburization) is flown, it represents that nail tip quality moderate is bad；
C classes：Tip is visible to the naked eye obvious flexural deformation, and without skin (representing serious decarburization) is flown, it represents that nail tip quality is serious
It is bad.
The nailing nail tip hardness quick determination method of the present invention discloses deformed shape, nail tip intensity and decarburized layer deepness
Direct correlation；Meanwhile it is without destructive test；Furthermore its nail tip directly acts on standard block of hardness and produces several deformation classification
Situation；Finally, its breach the pointed product of domestic and international high intensity can not quick detection tip intensity directly perceived limitation.
The present invention nailing nail tip hardness quick determination method be applied to SPDC7.5/3.7-32C, HPD6-51C, HEP1/
The quality testing of nail tip after the heat treatment of all bullets such as 4-51C pointed nailing, and be usually used in bar footpath for 2.6,2.7,2.8,3.0,
3.2nd, the detection of the pointed products such as 3.3,3.5,3.7,3.8,4.0,5.0,6.0.
Production in enormous quantities for nailing class product, quick determination method of the invention are to improve production qualification rate
Important guarantee；For experiment adjustment and product improvement production technology, it is ensured that typical products in mass production quality total pass rate improves constantly,
Provide solid foundation and effective means.
The above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not to the present invention
Embodiment restriction.For those of ordinary skill in the field, can also make on the basis of the above description
Other various forms of changes or variation.Here all embodiments can not be exhaustive.Every skill for belonging to the present invention
Row of the obvious changes or variations that art scheme is extended out still in protection scope of the present invention.
Claims (8)
1. a kind of nailing nail tip hardness quick determination method, it is characterised in that comprise the following steps：
(1), nailing (1) is put into mould (2) and the nail tip of the nailing (1) is stretched out from the mould (2)；
(2), the mould (2) is placed on standard block of hardness (3) and makes the nail tip of the nailing (1) hard towards the standard
Spend block (3)；
(3), forcing press (4) presses according to the pressure, the frequency and stroke adjusted on the nailing (1), makes the nailing (1)
Nail tip under the effect of the pressure enter the standard block of hardness (3) in；
(4), removal pressure, takes out the nailing (1) from the standard block of hardness (3), and by the nailing (1) and exemplar pair
Than to judge the quality condition of the nailing (1).
2. nailing nail tip hardness quick determination method according to claim 1, it is characterised in that the mould (2) is circle
Column type mould, there is the cylindrical hole passed through for the nailing (1) in it.
3. nailing nail tip hardness quick determination method according to claim 2, it is characterised in that the standard block of hardness
(3) it is HRC30 standards block of hardness.
4. nailing nail tip hardness quick determination method according to claim 3, it is characterised in that in the step (3)
Pressure is 50N~2000N, the frequency is 1 beat/min, stroke is 0.1mm~8mm.
5. nailing nail tip hardness quick determination method according to claim 4, it is characterised in that be 3.0mm for bar footpath
Nailing, the pressure in the step (3) is 50N~500N, the frequency is 1 beat/min, stroke is 0.1mm~5mm.
6. nailing nail tip hardness quick determination method according to claim 4, it is characterised in that be 3.3mm for bar footpath
Nailing, the pressure in the step (3) is 100N~1000N, the frequency is 1 beat/min, stroke is 0.1mm~6mm.
7. nailing nail tip hardness quick determination method according to claim 4, it is characterised in that be 3.7mm for bar footpath
Nailing, the pressure in the step (3) is 500N~1000N, the frequency is 1 beat/min, stroke is 0.1mm~7mm.
8. nailing nail tip hardness quick determination method according to claim 4, it is characterised in that be 4.0mm for bar footpath
Nailing, the pressure in the step (3) is 1000N~2000N, the frequency is 1 beat/min, stroke is 0.1mm~8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710970322.2A CN107884295A (en) | 2017-10-18 | 2017-10-18 | A kind of nailing nail tip hardness quick determination method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710970322.2A CN107884295A (en) | 2017-10-18 | 2017-10-18 | A kind of nailing nail tip hardness quick determination method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107884295A true CN107884295A (en) | 2018-04-06 |
Family
ID=61781710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710970322.2A Pending CN107884295A (en) | 2017-10-18 | 2017-10-18 | A kind of nailing nail tip hardness quick determination method |
Country Status (1)
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| CN (1) | CN107884295A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080102840A (en) * | 2007-05-22 | 2008-11-26 | 현대자동차주식회사 | Apparatus for valuation of anti-solvent property with paint for automobile |
| CN201702751U (en) * | 2010-05-17 | 2011-01-12 | 杨富刚 | Nailer nail pusher |
| CN201800006U (en) * | 2010-09-04 | 2011-04-20 | 高科 | Nail support capable of preventing hammering injury of hand |
| JP4721360B2 (en) * | 2007-03-16 | 2011-07-13 | 日東精工株式会社 | Blow penetration test equipment |
| CN102852936A (en) * | 2012-09-17 | 2013-01-02 | 昆山帝豪装饰设计有限公司 | Novel steel nail |
| CN204165536U (en) * | 2014-10-29 | 2015-02-18 | 四川广融紧固器材有限公司 | A kind of plate device be convenient to nail shooting pill specification and detected |
| CN104713776A (en) * | 2013-12-12 | 2015-06-17 | 贵州航天精工制造有限公司 | Detection tool for detecting riveting quality of rivets |
| CN204461911U (en) * | 2015-02-14 | 2015-07-08 | 王丙军 | A kind of nail gun proving installation |
| CN205674056U (en) * | 2016-06-24 | 2016-11-09 | 常胜 | One holds pincers |
-
2017
- 2017-10-18 CN CN201710970322.2A patent/CN107884295A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4721360B2 (en) * | 2007-03-16 | 2011-07-13 | 日東精工株式会社 | Blow penetration test equipment |
| KR20080102840A (en) * | 2007-05-22 | 2008-11-26 | 현대자동차주식회사 | Apparatus for valuation of anti-solvent property with paint for automobile |
| CN201702751U (en) * | 2010-05-17 | 2011-01-12 | 杨富刚 | Nailer nail pusher |
| CN201800006U (en) * | 2010-09-04 | 2011-04-20 | 高科 | Nail support capable of preventing hammering injury of hand |
| CN102852936A (en) * | 2012-09-17 | 2013-01-02 | 昆山帝豪装饰设计有限公司 | Novel steel nail |
| CN104713776A (en) * | 2013-12-12 | 2015-06-17 | 贵州航天精工制造有限公司 | Detection tool for detecting riveting quality of rivets |
| CN204165536U (en) * | 2014-10-29 | 2015-02-18 | 四川广融紧固器材有限公司 | A kind of plate device be convenient to nail shooting pill specification and detected |
| CN204461911U (en) * | 2015-02-14 | 2015-07-08 | 王丙军 | A kind of nail gun proving installation |
| CN205674056U (en) * | 2016-06-24 | 2016-11-09 | 常胜 | One holds pincers |
Non-Patent Citations (1)
| Title |
|---|
| 周红梅: "木结构钉连接力学性能试验研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
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Application publication date: 20180406 |
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