CN207318169U - A kind of sampler suitable for oxygen nitrogen hydrogen analyzer detection nitrogen content of molten steel - Google Patents
A kind of sampler suitable for oxygen nitrogen hydrogen analyzer detection nitrogen content of molten steel Download PDFInfo
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- CN207318169U CN207318169U CN201721506760.5U CN201721506760U CN207318169U CN 207318169 U CN207318169 U CN 207318169U CN 201721506760 U CN201721506760 U CN 201721506760U CN 207318169 U CN207318169 U CN 207318169U
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- glass container
- molten steel
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Abstract
A kind of sampler suitable for oxygen nitrogen hydrogen analyzer detection nitrogen content of molten steel, belongs to molten steel sample detection technical field of tools, for the fast sampling in molten steel.Its technical solution is：It includes glass container, aluminium foil, and glass container is long tube, glass container it is closed at both ends, be vacuum in the chamber of glass container, aluminium foil is attached on the inner wall circumference of glass container, and the front end of glass container is conical nose.The utility model is in sampling, the conical nose of glass container is immersed in molten steel, conical nose melts under molten steel high temperature action, vacuum sucks molten steel in glass container in glass container, aluminium deoxidation reaction occurs for molten steel and the aluminium foil being attached on glass container inner wall, the oxygen content in molten steel is reduced, the success rate of detection sample producing can be improved.The utility model is simple in structure, easy to operate, rapidly and efficiently, and the detection sample of qualification can be quickly produced in the case where oxygen content in steel is higher, improves detection efficiency.
Description
Technical field
A kind of sampler of nitrogen content nitrogen hydrogen analyzer on-line checking molten steel suitable for oxygen is the utility model is related to, is belonged to
In molten steel sample detection technical field of tools.
Background technology
In nitrogen-containing steel smelting, the accurate control of nitrogen component is its core technology.Therefore, in smelting process and smelt knot
Shu Shi, the accurate detection of nitrogen content are the important means that auxiliary is smelted.Conventional element content is detected in production scene, it is general to use
Spark direct-reading spectrometer carries out the sample of a diameter of 35mm composition detection, but for nitrogen, what most of steel mills were equipped with
Spark direct-reading spectrometer can not accurately detect higher nitrogen content.And when using oxygen nitrogen hydrogen analyzer detection nitrogen content, then need
Elongated sample, a diameter of 4 ~ 6mm or so are produced, length is about 50 ~ 100mm, it is desirable to which sample there must not be the defects of stomata.In reality
In the production process of border, intermediate frequency furnace smelting deoxidizing capacity is relatively low, for the higher steel grade of part nitrogen content, due to Composition Control
And strong deoxidier such as Al, Ca etc. can not be used to carry out deoxidation, oxygen content in steel is higher.In sampling process, in oxygen and molten steel
Carbon can react, and generate CO gas overflowings, and hollow or a large amount of stomatas often occurs in the sample produced, measurement nitrogen content deviation compared with
Greatly, next step operation can not be carried out, influences rhythm of production.Therefore a kind of quick produce is needed to be used suitable for oxygen nitrogen hydrogen analyzer
Qualified detection sample device.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of oxygen nitrogen hydrogen analyzer detection molten steel nitrogen that is suitable for and contains
The sampler of amount, this sampler can produce oxygen nitrogen hydrogen detection sample under conditions of oxygen content height, be oxygen nitrogen hydrogen point
The quick sample for producing qualification of analyzer detection.
Solving the technical solution of above-mentioned technical problem is：
A kind of sampler suitable for oxygen nitrogen hydrogen analyzer detection nitrogen content of molten steel, it includes glass container, aluminium foil, glass
Glass container is long tube, glass container it is closed at both ends, be vacuum in the chamber of glass container, aluminium foil is attached to the interior of glass container
On wall circumference.
The above-mentioned sampler suitable for oxygen nitrogen hydrogen analyzer detection nitrogen content of molten steel, the front end of the glass container is cone
Forming head portion.
The above-mentioned sampler suitable for oxygen nitrogen hydrogen analyzer detection nitrogen content of molten steel, the length of the glass container are
250 ~ 350mm, internal diameter are 4 ~ 6mm, and thickness is 1 ~ 2mm, and the aluminum foil thickness of glass container inner wall attachment is 0.5 ~ 1mm, and length is
100~150mm。
The beneficial effects of the utility model are：
The conical nose of glass container is immersed in molten steel, conical nose is in molten steel height by the utility model in sampling
Temperature effect is lower to melt, and vacuum sucks molten steel in glass container with the pressure differential that molten steel is formed in glass container, and molten steel is sucking
During contacted with the aluminium foil being attached on glass container inner wall, occur aluminium deoxidation reaction, reduce molten steel in oxygen content, to keep away
Exempt from the generation of stomata in cooling procedure, the success rate of detection sample producing can be improved.
The utility model is simple in structure, easy to operate, rapidly and efficiently, can be quick in the case where oxygen content in steel is higher
The detection sample of qualification is produced, improves detection efficiency, the duration of heat and production cost is reduced, increases economic efficiency.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the utility model；
Fig. 2 is the sectional view of the utility model.
Marked in figure as follows：Glass container 1, conical nose 2, aluminium foil 3.
Embodiment
The utility model is made of glass container 1, conical nose 2, aluminium foil 3.
Shown in figure, glass container 1 is long tube, glass container 1 it is closed at both ends, be vacuum in the chamber of glass container 1,
The head of glass container 1 is taper, and conical nose 2 can make vacuum and steel in glass container 1 in molten steel is inserted into rapid melting
The pressure differential that liquid is formed sucks molten steel in glass container 1.
Being shown in figure, aluminium foil 3 is attached on the inner wall circumference of glass container 1, for reacting with the oxygen in molten steel, drop
Oxygen content in low molten steel.
The application method of the utility model is as follows：
Sampler is fixed on sampling gun, when needing to sample in molten steel, by the conical nose 2 of glass container 1
It is inserted into molten steel, conical nose 2 melts under molten steel high temperature action, due to the pressure that vacuum is formed with molten steel in glass container 1
Force difference, molten steel is pressed into glass container 1, and during inflow, molten steel connects with the aluminium foil 3 being attached on 1 inner wall of glass container
Touch, aluminium deoxidation reaction occurs, reduces the oxygen content in molten steel, to avoid the generation of the bubble in molten steel cooling procedure, improve inspection
The success rate that test specimens are produced.Glass container 1 keeps 2-5s after being inserted into molten steel, after molten steel is full of glass container 1, takes rapidly
Go out, carry out water cooling.Sample to be detected is can obtain after knocking out glassy layer.
The embodiment of the utility model is as follows：
Example 1：
A stove 316LN steel is smelted, it is 0. 015 to design nitrogen content in component（Mass percent）.Before smelting, it will sample
Device is installed on sampling gun.When smelting endpoint needs composition detection, outside certain safe distance, by the taper of glass container 1
Head 2 is inserted into molten steel, and the molten steel fusing conical nose 2 of high temperature, is pumped into glass by molten steel using vacuum in glass container 1 and holds
In device 1, with aluminium foil 3 deoxygenation occurs for oxygen in molten steel, thus avoid in cooling procedure sample there is bubble and cause to detect
Misalignment.Insertion process is lasting for about 3s, rapid to take out after molten steel is full of glass container 1, carries out water cooling.After knocking out glassy layer
It can obtain sample to be detected.Specimen surface, inside are up-to-standard without gas stomata.Inspection will be sent to after specimen surface turnning and milling
Measured center, quick nitrogen content detection is carried out using oxygen nitrogen hydrogen analyzer.Testing result nitrogen content be 0.0153, with design component compared with
It is close.
Example 2：
It is 0.50 to smelt a stove Cr18Mn18N without magnetic austenitic stainless steel, design component nitrogen content.Sampling is filled before smelting
Put on sampling gun, when smelting endpoint detects component, by the conical nose 2 of glass container 1 outside certain safe distance
It is inserted into molten steel, is taken out after continuing 3s after insertion, water cooling.Surface glass layer is knocked, car falls sample top layer, you can is detected
Sample.Specimen surface and center portion pore-free, reach testing requirements.Inspection center is sent to be detected.Testing result is 0.496,
It is closer to design component.
Example 3：
A stove 317LN steel is smelted, it is 0.10 to design nitrogen content in component.Device is installed on sampling gun before smelting, is taken
During sample, the conical nose 2 of glass container 1 is inserted into molten steel outside certain safe distance, insertion process is taken out after continuing 2s,
Water cooling.After knocking out glassy layer, car goes to sample top layer to obtain detection sample, specimen surface and internal pore-free.It is sent to inspection center
It is detected, testing result 0.112, is closer to design component.
Claims (3)
- A kind of 1. sampler suitable for oxygen nitrogen hydrogen analyzer detection nitrogen content of molten steel, it is characterised in that：It holds including glass Device（1）, aluminium foil（3）, glass container（1）For long tube, glass container（1）Closed at both ends, glass container（1）Chamber in be true Sky, aluminium foil（3）It is attached to glass container（1）Inner wall circumference on.
- 2. the sampler according to claim 1 suitable for oxygen nitrogen hydrogen analyzer detection nitrogen content of molten steel, its feature exists In：The glass container（1）Front end be conical nose（2）.
- 3. the sampler according to claim 2 suitable for oxygen nitrogen hydrogen analyzer detection nitrogen content of molten steel, its feature exists In：The glass container（1）Length be 250 ~ 350mm, internal diameter is 4 ~ 6mm, and thickness is 1 ~ 2mm, glass container（1）Inner wall is attached The aluminium foil（3）Thickness is 0.5 ~ 1mm, and length is 100 ~ 150mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721506760.5U CN207318169U (en) | 2017-11-13 | 2017-11-13 | A kind of sampler suitable for oxygen nitrogen hydrogen analyzer detection nitrogen content of molten steel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721506760.5U CN207318169U (en) | 2017-11-13 | 2017-11-13 | A kind of sampler suitable for oxygen nitrogen hydrogen analyzer detection nitrogen content of molten steel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107796666A (en) * | 2017-11-13 | 2018-03-13 | 河钢股份有限公司 | A kind of sampler and method of oxygen nitrogen hydrogen analyzer detection nitrogen content of molten steel |
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2017
- 2017-11-13 CN CN201721506760.5U patent/CN207318169U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107796666A (en) * | 2017-11-13 | 2018-03-13 | 河钢股份有限公司 | A kind of sampler and method of oxygen nitrogen hydrogen analyzer detection nitrogen content of molten steel |
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