CN110196180A - A kind of method for making sample that may be implemented quickly to detect nitrogen component - Google Patents
A kind of method for making sample that may be implemented quickly to detect nitrogen component Download PDFInfo
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- CN110196180A CN110196180A CN201910584862.6A CN201910584862A CN110196180A CN 110196180 A CN110196180 A CN 110196180A CN 201910584862 A CN201910584862 A CN 201910584862A CN 110196180 A CN110196180 A CN 110196180A
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- sample
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- casting mold
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
- G01N2001/366—Moulds; Demoulding
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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)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of method for making sample that may be implemented quickly to detect nitrogen component, are related to the production method for examining nitrogen sample, solve the problems, such as that current detection time is long, can not adapt to the quick production requirement in stokehold.The method for making sample takes iron liquid casting into the casting mold of inspection nitrogen the following steps are included: after cast iron melting；After iron liquid solidification, taking-up is cooled to room temperature, and knocks off the tail portion of sample；Oxide layer is removed in sample tail portion, dries.The casting mold includes the first casting mold and the second casting mold being detachably connected, and surrounds a sample preparation chamber, and one end of sample preparation chamber is equipped with a casting chamber, and sample preparation chamber is connected with casting chamber, and the sample preparation chamber and casting chamber are cylindrical cavity, and the casting chamber is greater than sample preparation chamber.Production inspection nitrogen sample by means of the present invention, directly takes molten iron casting at inspection nitrogen sample, is reprocessed into inspection nitrogen sample without pouring into after other samples, and sample preparation can be rapidly completed and be used to examine, and realizes that nitrogen component, steady production control are quickly examined in stokehold.
Description
Technical field
The present invention relates to the production methods of inspection nitrogen sample, more specifically, it relates to which one kind may be implemented quickly to detect nitrogen
The method for making sample of ingredient.
Background technique
With the progress of science, researcher has made very in-depth study to nitrogen, has verified the dual character of nitrogen.Certain
Nitrogen content within the scope of, the material capability of casting can be promoted, but after being more than a certain specific amount, it may appear that negative effect produces
There is nitrogen pore in product, and product batch is caused to be scrapped, it is difficult to solve.
Currently, a kind of detection method is to be examined using spectroscopy mode, but detect more commonly there are two types of inspection nitrogen modes
Nitrogen component deviation is larger, for precisely producing, is unable to reach the requirement precisely produced.Another detection method is using oxygen
Blood urea/nitrogen analyzer or oxygen nitrogen hydrogen analyzer detect, and the nitrogen content of this method detection is more accurate, are able to satisfy wanting of precisely producing
It asks.But the detection method is restricted in sample preparation, after iron liquid reaches certain temperature, takes part iron liquid casting to specific casting
In type, after waiting iron liquid to naturally cool to normal temperature state, unpacks and take out sample, then testing requirements size is reached by lathe process
Sample, sample size are generally diameter≤5mm, and weight is in 1g or so.It is poured into casting mold from iron liquid sampling, then is tried to processing
Time required for sample at least needs 1h or more, then sample is put into oxygen-nitrogen analyzer or oxygen nitrogen hydrogen analyzer and is detected
Nitrogen component content, the sample preparation period is longer, and detection time is too long, is unable to satisfy the requirement of field quick detection, can not adapt to stokehold
The requirement for quickly producing and controlling.
Summary of the invention
The present invention is to solve sample preparation time length in the prior art to cause detection time long, can not adapt to stokehold and quickly produce want
The deficiency asked provides a kind of method for making sample that may be implemented quickly to detect nitrogen component.
The technical scheme is that being:
A kind of method for making sample that may be implemented quickly to detect nitrogen component, comprising the following steps:
(1) after cast iron melting, take iron liquid casting into the casting mold of inspection nitrogen；
(2) after iron liquid solidification, 600~700 DEG C are naturally cooled to, taking-up is cooled to room temperature, and knocks off the tail portion of sample；
(3) oxide layer is removed in sample tail portion, dries, and sample preparation can be completed.
Further, the temperature of iron liquid described in step (1) is 1350~1400 DEG C.
Further, mode cooling described in step (2) is water cooling or natural cooling
Further, the casting mold includes the first casting mold and the second casting mold, and first casting mold and the second casting mold are detachable
Connection, first casting mold and the second casting mold surround a sample preparation chamber, and one end of the sample preparation chamber is equipped with a casting chamber, the sample preparation
Chamber is connected with casting chamber, and the sample preparation chamber and casting chamber are cylindrical cavity, and the casting chamber is greater than sample preparation chamber.
The present invention also provides the above-mentioned casting mold that may be implemented quickly to detect the method for making sample of nitrogen component, the casting mold packets
The first casting mold and the second casting mold are included, first casting mold and the second casting mold are detachably connected, first casting mold and the second casting mold
A sample preparation chamber is surrounded, one end of the sample preparation chamber is equipped with a casting chamber, and the sample preparation chamber is connected with casting chamber, and the sample preparation
Chamber and casting chamber are cylindrical cavity, and the casting chamber is greater than sample preparation chamber.
Further, the inner wall of the sample preparation chamber is equipped with the NOL ring of a protrusion.
Further, the NOL ring includes the first skewback and the second skewback, one end and the sample preparation chamber of first skewback
With the junction linking of casting chamber, the other end is tilted along the central axis direction of the sample preparation chamber to be extended, second skewback
One end is connected with the other end of the first skewback, and other end inclination extends to the inner wall of the sample preparation chamber.
Further, the tilt angle of first skewback is equal with the tilt angle of the second skewback, and described first is oblique
The tilt angle of block and the second skewback is 30-45 degree.
Further, multiple positioning pins are equipped in first casting mold, correspondingly, also being provided in second casting mold more
A pin hole, the positioning pin are plugged in pin hole.
Further, first casting mold and the second casting mold are connected by locked clip device.
Compared with the prior art, the advantages of the present invention are as follows:
1. directly taking molten iron casting at inspection nitrogen in furnace charge melting by using method production inspection nitrogen sample of the invention
Sample is reprocessed into inspection nitrogen sample without pouring into other samples after cooling, the production of sample can be rapidly completed, be used in combination
In inspection, realize that nitrogen component, steady production control are quickly examined in stokehold.
2. knocking off be poured sample tail portion using method production inspection nitrogen sample of the invention, removing the tail portion of sample
Inspection nitrogen sample, about 6 minutes entire sample preparation used times are obtained, then sample is put into oxygen-nitrogen analyzer or oxygen nitrogen hydrogen analyzer and is examined
Survey nitrogen component content, detection time and, requirement that be able to satisfy scene quickly produce essentially identical using spectroscopy mode Check-Out Time.
3. setting sample preparation chamber and casting chamber for the cavity of casting mold, casting chamber is much larger than sample preparation chamber, when casting, iron liquid from
Casting chamber flows to sample preparation chamber, can effectively guarantee the pouring temperature of iron liquid, it is ensured that the mold-filling capacity of sample preparation chamber guarantees the complete of sample
Whole property.Casting is completed and after sample is cooling, sample is directly struck down from the iron block formed by casting chamber, which can be straight
It connects and is placed in detection nitrogen component content in oxygen-nitrogen analyzer, be not necessarily to reprocessing, realize rapid prototyping.The sample preparation time of the tooling
It is short, the requirement of field quick detection can be met.
4. being equipped with the NOL ring of a protrusion on sample preparation cavity wall, makes to cast out the iron block come and sample junction forms one
Stress slot is convenient for the fast and accurately abate from iron block by sample, and can ensure that the integrality of the sample in abate.
Detailed description of the invention
Fig. 1 is the structure schematic top plan view of casting mold of the invention；
Fig. 2 is the first casting mold structure schematic diagram of the invention；
Fig. 3 is the first casting mold partial enlargement diagram of the invention.
Wherein: the first casting mold of 1-, the second casting mold of 2-, 3- sample preparation chamber, 4- are poured chamber, the first skewback of 5-, the second skewback of 6-, 7-
Positioning pin.
Specific embodiment
Below with reference to embodiment, the invention will be further described, but does not constitute any limitation of the invention, any
The modification for the limited times that people is made in scope of the invention as claimed, still in scope of the presently claimed invention.
Embodiment 1
(1) charge composition is matched according to the requirement of the production trade mark, and the furnace charge prepared is placed on melting in intermediate frequency furnace,
After load melting 4/5ths, manganese iron, copper, ferrosilicon etc. are added according to the aim parameter of molten iron.
(2) after the completion of cast iron melting, molten iron temperature is controlled between 1350-1400 DEG C, takes iron liquid Quick pouring to inspection nitrogen
Specific casting mold in.
(3) wait sample solidification, after naturally cooling to 600 degree, unpack and take out sample, after naturally cooling to room temperature, directly
Knock off sample tail portion.
(4) the sample tail portion for knocking off is taken, surface is cleaned using alcohol, the oxide layer on surface is washed, is put into dry
It is dried on net blank sheet of paper, that is, completes the production of inspection nitrogen sample.
- Fig. 3 refering to fig. 1 quickly detects the casting mold of the method for making sample of nitrogen component, including the first casting mold for realization of the invention
1 and second casting mold 2, the first casting mold 1 and the second casting mold 2 are detachably connected.Specifically, setting in the first casting mold 1, there are two positioning pins
7, correspondingly, also being provided with two pin holes in the second casting mold 2.In casting mold molding, positioning pin 7 is plugged in pin hole, that is, is completed
The molding of casting mold, positioning pin 7 can effectively avoid the first casting mold 1 or second casting mold 2 from shifting.First casting mold 1 and the second casting mold 2
It is connected by locked clip device, after the completion of casting mold molding, is locked the first casting mold 1 and the second casting mold 2 by clip.Pass through positioning
The effect of pin 7 and clip makes the first casting mold 1 and the second casting mold 2 closely be bonded and lock, and goes on smoothly casting.First casting
Type 1 and the second casting mold 2 surround a sample preparation chamber 3, for being poured sample.One end of sample preparation chamber 3 be equipped with one casting chamber 4, sample preparation chamber 3 with
Casting chamber 4 is connected, and casting chamber 4 is used for water conservancy diversion iron liquid.Sample preparation chamber 3 and casting chamber 4 are cylindrical cavity, after facilitating casting
Sample demoulding.It is poured chamber 4 and is greater than sample preparation chamber 3, can effectively guarantee the pouring temperature of iron liquid when casting, it is ensured that sample preparation chamber 3 fills
Type ability guarantees the integrality of sample.After casting complete, one and sample can be will form after cooling there are iron liquid in casting chamber 4
The iron block of product connection directly strikes down sample, which can be placed directly within oxygen nitrogen after sample is cooled to room temperature from iron block
Nitrogen component content is detected in analyzer, without reprocessing, realizes rapid prototyping.The sample preparation time of the tooling is short, can meet existing
The requirement that field is quickly detected.
The inner wall of sample preparation chamber 3 is equipped with the NOL ring of a protrusion.Specifically, NOL ring includes that the first skewback 5 and second is oblique
One end of block 6, the first skewback 5 is connected with the junction of sample preparation chamber 3 and casting chamber 4, central axis direction of the other end along sample preparation chamber 3
Inclination extends, and one end of the second skewback 6 is connected with the other end of the first skewback 5, and other end inclination extends to the interior of sample preparation chamber 3
Wall.By above-mentioned setting, to make the stress slot for casting out the sample come and iron block junction formation one is recessed inwardly, being convenient for will
Sample fast and accurately abate from iron block, and can guarantee the integrality of the sample after abate.
Preferably, the tilt angle of the first skewback 5 is equal with the tilt angle of the second skewback 6, and the first skewback 5 and second
The tilt angle of skewback 6 is 30-45 degree.First is that for ease of machining stress ring；Furthermore it is that sample is made to be easy to the abate from iron block,
Ensure the integrality of sample.
For the feasibility of the method for making sample of verifying quick detection nitrogen component of the invention, 5 samples to be tested are randomly selected, it will
It is detected after carrying out sample preparation according to the prior art and method for making sample of the invention respectively with oxygen nitrogen hydrogen analyzer.Testing result is such as
Lower expression:
By the data of upper table it is found that the method for making sample of quick detection nitrogen component of the invention can be directly used for nitrogen content
Detection, and the detection accuracy of the prior art can be reached, while also reducing detection cycle, meet wanting for field quick detection
It asks.
What has been described above is only a preferred embodiment of the present invention, it should be pointed out that for those skilled in the art,
Without departing from the structure of the invention, several modifications and improvements can also be made, these all will not influence implementation of the present invention
Effect and patent practicability.
Claims (10)
1. a kind of method for making sample that may be implemented quickly to detect nitrogen component, which comprises the following steps:
(1) after cast iron melting, take iron liquid casting into the casting mold of inspection nitrogen；
(2) after iron liquid solidification, 600~700 DEG C are naturally cooled to, taking-up is cooled to room temperature, and knocks off the tail portion of sample；
(3) oxide layer is removed in sample tail portion, dries, and sample preparation can be completed.
2. the method for making sample according to claim 1 that may be implemented quickly to detect nitrogen component, which is characterized in that step (1)
Described in iron liquid temperature be 1350~1400 DEG C.
3. the method for making sample according to claim 1 or 2 that may be implemented quickly to detect nitrogen component, which is characterized in that step
(2) cooling mode described in is water cooling or natural cooling.
4. the method for making sample according to claim 1 that may be implemented quickly to detect nitrogen component, which is characterized in that the casting mold
Including the first casting mold and the second casting mold, first casting mold and the second casting mold are detachably connected, first casting mold and the second casting
Type surrounds a sample preparation chamber, and one end of the sample preparation chamber is equipped with a casting chamber, and the sample preparation chamber is connected with casting chamber, and the system
Sample chamber and casting chamber are cylindrical cavity, and the casting chamber is greater than sample preparation chamber.
5. a kind of casting mold of the method for making sample described in claim 1 that may be implemented quickly to detect nitrogen component, which is characterized in that packet
The first casting mold and the second casting mold are included, first casting mold and the second casting mold are detachably connected, first casting mold and the second casting mold
A sample preparation chamber is surrounded, one end of the sample preparation chamber is equipped with a casting chamber, and the sample preparation chamber is connected with casting chamber, and the sample preparation
Chamber and casting chamber are cylindrical cavity, and the casting chamber is greater than sample preparation chamber.
6. a kind of tooling that quick Fabrication inspection nitrogen sample preparation may be implemented according to claim 1, which is characterized in that the system
The inner wall of sample chamber is equipped with the NOL ring of a protrusion.
7. a kind of tooling that quick Fabrication inspection nitrogen sample preparation may be implemented according to claim 6, which is characterized in that described to answer
Power ring includes the first skewback and the second skewback, and one end of first skewback is connected with the junction of sample preparation chamber and casting chamber, separately
One end is tilted along the central axis direction of the sample preparation chamber to be extended, and one end of second skewback and the other end of the first skewback are held in the mouth
It connects, other end inclination extends to the inner wall of the sample preparation chamber.
8. a kind of tooling that quick Fabrication inspection nitrogen sample preparation may be implemented according to claim 7, which is characterized in that described the
The tilt angle of one skewback is equal with the tilt angle of the second skewback, and the tilt angle of first skewback and the second skewback is
30-45 degree.
9. a kind of tooling that quick Fabrication inspection nitrogen sample preparation may be implemented according to claim 5, which is characterized in that described the
Multiple positioning pins are equipped in one casting mold, correspondingly, also being provided with multiple pin holes in second casting mold, the positioning pin is plugged on pin
Kong Zhong.
10. a kind of tooling that quick Fabrication inspection nitrogen sample preparation may be implemented according to claim 5, which is characterized in that described
First casting mold and the second casting mold are connected by locked clip device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910584862.6A CN110196180A (en) | 2019-07-01 | 2019-07-01 | A kind of method for making sample that may be implemented quickly to detect nitrogen component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910584862.6A CN110196180A (en) | 2019-07-01 | 2019-07-01 | A kind of method for making sample that may be implemented quickly to detect nitrogen component |
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| Publication Number | Publication Date |
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| CN110196180A true CN110196180A (en) | 2019-09-03 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910584862.6A Pending CN110196180A (en) | 2019-07-01 | 2019-07-01 | A kind of method for making sample that may be implemented quickly to detect nitrogen component |
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| CN101962730A (en) * | 2010-11-01 | 2011-02-02 | 福州大学 | High-toughness twinning induced plasticity (TWIP) nodular cast iron alloy and preparation method thereof |
| CN103418749A (en) * | 2012-05-15 | 2013-12-04 | 福塞科国际有限公司 | Feeder element |
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Application publication date: 20190903 |
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