CN110308098A - A kind of method of quick detection P91 nitrogen in steel content - Google Patents
A kind of method of quick detection P91 nitrogen in steel content Download PDFInfo
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Abstract
The present invention relates to a kind of methods of quickly detection P91 nitrogen in steel content, belong to nitrogen content detection method technical field.To solve the problems, such as that existing direct-reading spectrometer analysis P91 nitrogen in steel content deviation is larger and oxygen nitrogen instrument analytical cycle is long, the present invention provides a kind of method of quickly detection P91 nitrogen in steel content, include the following steps: using nitrogen content in oxygen nitrogen instrument confirmation process sample and as standard sample typing direct-reading spectrometer standard specimen library；Utilize the corresponding intensity value of direct-reading spectrometer analysis nitrogen standard sample；Working curve is drawn according to the intensity value of nitrogen standard sample and nitrogen content；The intensity value is substituted into working curve, passes through the nitrogen content being calculated in P91 steel sample to be tested by the intensity value that P91 steel sample to be tested is read using direct-reading spectrometer.The present invention obtains higher accuracy rate while shortening detection cycle, and analysis result is reproducible, and the control of smelting process and finished product nitrogen content to P91 steel has stronger directive significance.
Description
Technical field
The invention belongs to nitrogen content detection method technical fields, more particularly to one kind quickly to detect P91 nitrogen in steel content
Method.
Background technique
P91 steel is to fill up 600~650 DEG C of temperature regions between pearlite heatproof steel and austenitic heat-resistance steel and use
New steam-water pipe steel, belongs to martensite heat-resistant steel, and maximum operation (service) temperature is 650 DEG C.P91 steel is in former 9Cr-1Mo base steel
The intensified elements such as V, Nb, N are added on plinth, form a kind of rotten new steel grade.
The intensity of steel can be improved as a kind of intensified element in P91 nitrogen in steel, and content directly determines the property of P91 steel
Can, therefore the content of strict control nitrogen is needed in smelting process.But when smelting P91 steel grade, with PDA8000 direct-reading spectrometer point
Analysis P91 steel grade nitrogen content deviation is frequently more than 50%, if drilling through the analysis of sample oxygen nitrogen instrument, the period is all at 10 minutes or so
Phase is longer, is not suitable for converter smelting production.
Summary of the invention
To solve, existing direct-reading spectrometer analysis P91 nitrogen in steel content deviation is larger and oxygen nitrogen instrument analytical cycle is long is asked
Topic, the present invention provides a kind of methods of quickly detection P91 nitrogen in steel content.
Technical solution of the present invention:
A kind of method of quick detection P91 nitrogen in steel content, includes the following steps:
Step 1: utilizing nitrogen content in oxygen nitrogen instrument confirmation process sample；
Step 2: using process sample as nitrogen standard sample, by its nitrogen content standard value typing direct-reading spectrometer standard specimen library；
Step 3: utilizing the corresponding intensity value of direct-reading spectrometer analysis nitrogen standard sample；
Step 4: drawing working curve according to the intensity value of nitrogen standard sample and nitrogen content；
Step 5: reading the intensity value of P91 steel sample to be tested using direct-reading spectrometer, which is substituted into step 4 institute
Working curve is obtained, the nitrogen content being calculated in P91 steel sample to be tested is passed through.
Further, oxygen nitrogen instrument described in step 1 is TC500 oxygen nitrogen combined measuring instrument.
Further, the sampling method of process sample steel described in step 1 are as follows: taken taper in the smelting process of stokehold is tried
Sample is cut, and sample slow cooling after cutting prevents its surface cracked, it is desirable that specimen surface without shrinkage cavity, be mingled with, crackle；It bores
It materialses side, sample sideway stance is subjected to surface polishing treatment before drilling through, prevents iron scale from entering in sample, use is desk-top
Drilling machine drill sampling bits, the sample after drilling through, it is desirable that for it is oil-free, anhydrous, without decarburization, uniform strip crumbs shape, weight 2g or more.
Further, before step 3 analyzes nitrogen standard sample using direct-reading spectrometer, plain grinding abrasive machine pair is used
Nitrogen standard sample surface is handled, make its surface texture it is consistent, without shrinkage cavity, be mingled with and crackle.
Further, direct-reading spectrometer described in step 3 and step 5 is PDA8000 direct-reading spectrometer, analysis condition
It is the argon gas that purity is 99.995% or more, adjusting analysis flow is 8L/min, standby flow 0.1L/min, suspend mode flow are
0.05L/min。
Further, when step 4 draws working curve under calibration curve catalogue, selection analysis condition group-iron-based song
Line, calibration curve group-stainless steel, channel-N carry out the drafting of working curve.
Further, P91 steel sample to be tested described in step 5 is taper sample or racket sample, is analyzed using direct-reading spectrometer
It is preceding to be handled using plain grinding abrasive machine, make sample to be tested surface texture it is consistent, without shrinkage cavity, be mingled with and crackle.
Further, step 5 using direct-reading spectrometer read P91 steel detection sample intensity value be analysis condition-no
Rust steel group is read out.
Beneficial effects of the present invention:
The method of quick detection P91 nitrogen in steel content provided by the invention is analyzed the nitrogen in sample according to direct-reading spectrometer and is contained
Amount obtains higher accuracy rate while shortening detection cycle, and analyzes result repeatability preferably, in the smelting of P91 steel
Whether reliable, finished product nitrogen content the control of Atmosphere Control, molding casting has stronger directive significance.Present invention detection side
Method can save a large amount of analysis times relative to oxygen nitrogen instrument, be rapidly and accurately production line in 3 minutes completion detection cycles
Detection data is provided, the needs for smelting production are met.
Detailed description of the invention
Fig. 1 is the working curve that embodiment 3 is drawn according to the intensity value and nitrogen content of nitrogen standard sample.
Specific embodiment
Below with reference to embodiment, the following further describes the technical solution of the present invention, and however, it is not limited to this, all right
Technical solution of the present invention is modified or replaced equivalently, and without departing from the spirit and scope of the technical solution of the present invention, should all be contained
Lid is within the protection scope of the present invention.
Embodiment 1
A kind of method of quick detection P91 nitrogen in steel content, includes the following steps:
Step 1: utilizing nitrogen content in oxygen nitrogen instrument confirmation process sample；
Step 2: using process sample as nitrogen standard sample, by its nitrogen content standard value typing direct-reading spectrometer standard specimen library；
Step 3: utilizing the corresponding intensity value of direct-reading spectrometer analysis nitrogen standard sample；
Step 4: drawing working curve according to the intensity value of nitrogen standard sample and nitrogen content；
Step 5: reading the intensity value of P91 steel sample to be tested using direct-reading spectrometer, which is substituted into step 4 institute
Working curve is obtained, the nitrogen content being calculated in P91 steel sample to be tested is passed through.
Embodiment 2
A kind of method of quick detection P91 nitrogen in steel content, includes the following steps:
Step 1: utilizing nitrogen content in TC500 oxygen nitrogen combined measuring instrument confirmation process sample；
It is considered to be worth doing with bench drill drill sampling, specific sampling method are as follows: taper sample taken in the smelting process of stokehold is cut
Cut, sample slow cooling after cutting prevents its surface cracked, it is desirable that specimen surface without shrinkage cavity, be mingled with, crackle；Drill through sample side
Sample sideway stance is carried out surface polishing treatment using plain grinding abrasive machine before drilling through, prevents iron scale from entering in sample by face,
Considered to be worth doing with bench drill drill sampling, sample after drilling through, it is desirable that for it is oil-free, anhydrous, without decarburization, uniform strip crumbs shape, weight 2g or more.
Step 2: using process sample as nitrogen standard sample, by its nitrogen content standard value typing direct-reading spectrometer standard specimen library；
Step 3: handled using plain grinding abrasive machine nitrogen standard sample surface, make its surface texture it is consistent, without contracting
Hole is mingled with and crackle, and using the corresponding intensity value of direct-reading spectrometer analysis nitrogen standard sample, analysis condition is that purity is
99.995% or more argon gas, adjusting analysis flow is 8L/min, standby flow 0.1L/min, suspend mode flow are 0.05L/min；
Step 4: according to the intensity value and nitrogen content of nitrogen standard sample, under calibration curve catalogue, selection analysis condition
The iron-based curve of group-, calibration curve group-stainless steel, channel-N carry out the drafting of working curve；
Step 5: reading the intensity value of P91 steel sample to be tested using direct-reading spectrometer, P91 steel sample to be tested is taper sample
Or racket sample, handled before being analyzed using direct-reading spectrometer using plain grinding abrasive machine, make sample to be tested surface texture it is consistent,
No shrinkage cavity is mingled with and crackle；Analysis condition be purity be 99.995% or more argon gas, adjust analysis flow be 8L/min,
Standby flow 0.1L/min, suspend mode flow are 0.05L/min；Intensity value is read in analysis condition-stainless steel group, by the intensity value
Working curve obtained by step 4 is substituted into, the nitrogen content in P91 steel sample to be tested is calculated.
Embodiment 3
The present embodiment utilizes the P91 that the method detection heat (batch) number of quickly detection P91 nitrogen in steel content is that 180606754-8 smelts
Nitrogen in steel content, detecting step are as follows:
Step 1: process sample nitrogen in steel content when being produced using TC500 oxygen nitrogen combined measuring instrument confirmation P91 steel；
It is considered to be worth doing with bench drill drill sampling, specific sampling method are as follows: taper sample taken in the smelting process of stokehold is cut
Cut, sample slow cooling after cutting prevents its surface cracked, it is desirable that specimen surface without shrinkage cavity, be mingled with, crackle；Drill through sample side
Sample sideway stance is carried out surface polishing treatment using plain grinding abrasive machine before drilling through, prevents iron scale from entering in sample by face,
Considered to be worth doing with bench drill drill sampling, sample after drilling through, it is desirable that for it is oil-free, anhydrous, without decarburization, uniform strip crumbs shape, weight 2g or more.
Step 2: nitrogen content contained by 10 P91 steel process sample as shown in Table 1 is sequentially input PDA8000 standard
Sample library: under information-standard sample registration catalogue, as standard value typing PDA8000 direct-reading spectrometer standard specimen library；
Table 1
Step 3: the corresponding intensity value of the process sample is analyzed using direct-reading spectrometer,
Direct-reading spectrometer application method are as follows: booting: argon gas is opened, partial pressure meter pressure is in 0.2-0.3MPa, guarantee purification for argon
The control of outlet of still pressure, which → opens general supply → 0.3 and opens main power source (main) → source of opening the light →, opens computer；Open PDA-R operation
Software, after instrument stabilizer, maintenance → inspection apparatus is clicked in new booting at least 4 hours or more, is checked and is opened vacuum after temperature is stablized
Pump (ON), pressure in acceptability limit stablize after, open negative high voltage (ON), open tired lamp (ON), adjust analysis flow 8L/min, to
Machine flow 0.1L/min, suspend mode flow 0.05L/min, the equal OK of instrument status parameters value.
Before analyzing nitrogen standard sample intensity value, nitrogen standard sample surface is handled using plain grinding abrasive machine, makes its table
Face texture is consistent, without shrinkage cavity, be mingled with and crackle, nitrogen standard sample is placed on to the excitation bench of direct-reading spectrometer immediately after the completion of processing
Upper measurement intensity value, does not answer standing time too long, and gained intensity value is as shown in table 2:
Table 2
| Serial number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Nitrogen content value (%) | 0.0045 | 0.0083 | 0.0118 | 0.0127 | 0.0216 | 0.0347 | 0.04 | 0.0615 | 0.0722 | 0.0935 |
| Intensity value | 32.65 | 47.85 | 63.63 | 66.25 | 89.55 | 119.77 | 135.11 | 177.47 | 206.9 | 256.13 |
Step 4: according to the intensity value and nitrogen content of process sample, under calibration curve catalogue, selection analysis condition group-
Iron-based curve, calibration curve group-stainless steel, channel-N carry out working curve drafting, gained working curve as shown in Figure 1, its
Detection range is 45ppm-935ppm.
Step 5: reading the intensity value of P91 steel detection sample using direct-reading spectrometer, P91 steel sample to be tested is taper sample
Or racket sample, handled before being analyzed using direct-reading spectrometer using plain grinding abrasive machine, make sample to be tested surface texture it is consistent,
No shrinkage cavity is mingled with and crackle, analysis condition are identical as step 3.Intensity value is read in analysis condition-stainless steel group, by the intensity
Value substitutes into working curve obtained by step 4, is that the P91 nitrogen in steel content that 180606754-8 smelts is by the way that heat (batch) number is calculated
0.0097%.
Embodiment 4
The method for the quick detection P91 nitrogen in steel content that the present embodiment is provided using embodiment 3 detects heat (batch) number
The P91 nitrogen in steel content that 180606754-9 smelts is that the P91 nitrogen in steel that 180606754-9 smelts contains by the way that heat (batch) number is calculated
Amount is 0.0089%.
Embodiment 5
The method for the quick detection P91 nitrogen in steel content that the present embodiment is provided using embodiment 3 detects heat (batch) number
The P91 nitrogen in steel content that 180606754-10 smelts is the P91 nitrogen in steel that 180606754-10 smelts by the way that heat (batch) number is calculated
Content is 0.0424%.
Embodiment 6
The method for the quick detection P91 nitrogen in steel content that the present embodiment is provided using embodiment 3 detects heat (batch) number
The P91 nitrogen in steel content that 180606754-11 smelts is the P91 nitrogen in steel that 180606754-11 smelts by the way that heat (batch) number is calculated
Content is 0.0421%.
Embodiment 7
The method for the quick detection P91 nitrogen in steel content that the present embodiment is provided using embodiment 3 detects heat (batch) number
The P91 nitrogen in steel content that 180606754-0 smelts is that the P91 nitrogen in steel that 180606754-0 smelts contains by the way that heat (batch) number is calculated
Amount is 0.0500%.
Embodiment 8
The method for the quick detection P91 nitrogen in steel content that the present embodiment is provided using embodiment 3 detects heat (batch) number
The P91 nitrogen in steel content that 180906756-6 smelts is that the P91 nitrogen in steel that 180906756-6 smelts contains by the way that heat (batch) number is calculated
Amount is 0.0109%.
Embodiment 9
The method for the quick detection P91 nitrogen in steel content that the present embodiment is provided using embodiment 3 detects heat (batch) number
The P91 nitrogen in steel content that 180906756-7 smelts is that the P91 nitrogen in steel that 180906756-7 smelts contains by the way that heat (batch) number is calculated
Amount is 0.0124%.
Embodiment 10
The method for the quick detection P91 nitrogen in steel content that the present embodiment is provided using embodiment 3 detects heat (batch) number
The P91 nitrogen in steel content that 180906756-8 smelts is that the P91 nitrogen in steel that 180906756-8 smelts contains by the way that heat (batch) number is calculated
Amount is 0.0097%.
Embodiment 11
The method for the quick detection P91 nitrogen in steel content that the present embodiment is provided using embodiment 3 detects heat (batch) number
The P91 nitrogen in steel content that 180906756-9 smelts is that the P91 nitrogen in steel that 180906756-9 smelts contains by the way that heat (batch) number is calculated
Amount is 0.0442%.
Embodiment 12
The method for the quick detection P91 nitrogen in steel content that the present embodiment is provided using embodiment 3 detects heat (batch) number
The P91 nitrogen in steel content that 180906756-10 smelts is the P91 nitrogen in steel that 180906756-10 smelts by the way that heat (batch) number is calculated
Content is 0.0422%.
Comparative example 1
The intensity value for 10 process samples that this comparative example uses embodiment 3, which substitutes into, draws gained working curve, through counting
Nitrogen content calculated value and the comparison of its nitrogen content value for calculating gained process sample are as shown in table 3:
Table 3
| Serial number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Nitrogen content value (%) | 0.0045 | 0.0083 | 0.0118 | 0.0127 | 0.0216 | 0.0347 | 0.0400 | 0.0615 | 0.0722 | 0.0935 |
| Nitrogen content calculated value (%) | 0.0049 | 0.0086 | 0.0124 | 0.0132 | 0.0220 | 0.0340 | 0.0405 | 0.0620 | 0.0734 | 0.0945 |
| Difference | 0.0004 | 0.0003 | 0.0006 | 0.0005 | 0.0004 | 0.0007 | 0.0005 | 0.0005 | 0.0012 | 0.0010 |
It is compared by table 3 as can be seen that the nitrogen for the process sample being calculated using the working curve that the present invention is drawn is contained
It measures calculated value and differs minimum with the nitrogen content value that oxygen nitrogen instrument detects, this illustrates the side of quickly detection P91 nitrogen in steel content of the invention
Method accuracy with higher.And detection method can be saved in 3 minutes completion detection cycles relative to oxygen nitrogen instrument
A large amount of analysis times are saved, rapidly and accurately provide detection data for production line, meet the needs for smelting production.
Comparative example 2
This comparative example has carried out the inspection of nitrogen content using the p91 steel that oxygen nitrogen instrument provides embodiment 3- embodiment 12 respectively
It surveys, testing result and embodiment 3- embodiment 12 are computed the nitrogen content comparison obtained as shown in table 4；
Table 4
| Test object | Heat (batch) number | Spectrum analysis nitrogen content | Oxygen nitrogen instrument analyzes nitrogen content | Difference |
| Embodiment 3 | 180606754-8 | 0.0097 | 0.0098 | 0.0001 |
| Embodiment 4 | 180606754-9 | 0.0089 | 0.0092 | 0.0003 |
| Embodiment 5 | 180606754-10 | 0.0424 | 0.0421 | 0.0003 |
| Embodiment 6 | 180606754-11 | 0.0421 | 0.0418 | 0.0003 |
| Embodiment 7 | 180606754-0 | 0.0500 | 0.0495 | 0.0005 |
| Embodiment 8 | 180906756-6 | 0.0109 | 0.0112 | 0.0003 |
| Embodiment 9 | 180906756-7 | 0.0124 | 0.0129 | 0.0005 |
| Embodiment 10 | 180906756-8 | 0.0097 | 0.0095 | 0.0002 |
| Embodiment 11 | 180906756-9 | 0.0442 | 0.0436 | 0.0006 |
| Embodiment 12 | 180906756-10 | 0.0422 | 0.0430 | 0.0008 |
The nitrogen that the working curve that the nitrogen content and the present invention detected by oxygen nitrogen instrument shown in table 4 is drawn calculates
It is found that the two difference is minimum, this illustrates that the method for quickly detection P91 nitrogen in steel content of the invention is with higher for the comparison of content
Accuracy.It is compared by the testing result of the P91 steel different to different heat (batch) number nitrogen contents it is found that the present invention quickly detects P91 steel
The method of middle nitrogen content repeatability with higher, whether reliable to Atmosphere Control, molding casting in the smelting of P91 steel,
The control of finished product nitrogen content has stronger directive significance, can satisfy the requirement of stokehold smelting.
Claims (8)
1. a kind of method of quickly detection P91 nitrogen in steel content, which comprises the steps of:
Step 1: utilizing nitrogen content in oxygen nitrogen instrument confirmation process sample；
Step 2: using process sample as nitrogen standard sample, by its nitrogen content standard value typing direct-reading spectrometer standard specimen library；
Step 3: utilizing the corresponding intensity value of direct-reading spectrometer analysis nitrogen standard sample；
Step 4: drawing working curve according to the intensity value of nitrogen standard sample and nitrogen content；
Step 5: reading the intensity value of P91 steel sample to be tested using direct-reading spectrometer, which is substituted into work obtained by step 4
Make curve, passes through the nitrogen content being calculated in P91 steel sample to be tested.
2. a kind of method of quickly detection P91 nitrogen in steel content according to claim 1, which is characterized in that described in step 1
Oxygen nitrogen instrument is TC500 oxygen nitrogen combined measuring instrument.
3. a kind of method of quickly detection P91 nitrogen in steel content according to claim 1 or claim 2, which is characterized in that step 1 institute
State the sampling method of process sample are as follows: cut, sample slow cooling after cutting, prevent to taper sample taken in the smelting process of stokehold
Only its surface is cracked, it is desirable that specimen surface without shrinkage cavity, be mingled with, crackle；Sample side is drilled through, by sample side surface part before drilling through
Position carries out surface polishing treatment, prevents iron scale from entering in sample, is considered to be worth doing with bench drill drill sampling, and the sample after drilling through is wanted
Ask for it is oil-free, anhydrous, without decarburization, uniform strip crumbs shape, weight 2g or more.
4. a kind of method of quickly detection P91 nitrogen in steel content according to claim 3, which is characterized in that step 3 uses
Before direct-reading spectrometer analyzes nitrogen standard sample, nitrogen standard sample surface is handled using plain grinding abrasive machine, makes it
Surface texture is consistent, without shrinkage cavity, be mingled with and crackle.
5. a kind of method of quickly detection P91 nitrogen in steel content according to claim 4, which is characterized in that step 3 and step
Rapid five direct-reading spectrometer is PDA8000 direct-reading spectrometer, and analysis condition is the argon that purity is 99.995% or more
Gas, adjusting analysis flow is 8L/min, standby flow 0.1L/min, suspend mode flow are 0.05L/min.
6. a kind of method of quickly detection P91 nitrogen in steel content according to claim 5, which is characterized in that step 4 is drawn
When working curve under calibration curve catalogue, selection analysis condition group-iron-based curve, calibration curve group-stainless steel, channel-N into
The drafting of row working curve.
7. a kind of method of quickly detection P91 nitrogen in steel content according to claim 6, which is characterized in that described in step 5
P91 steel sample to be tested is taper sample or racket sample, is handled, is made using plain grinding abrasive machine before being analyzed using direct-reading spectrometer
Sample to be tested surface texture is consistent, without shrinkage cavity, be mingled with and crackle.
8. a kind of method of quickly detection P91 nitrogen in steel content according to claim 7, which is characterized in that step 5 utilizes
The intensity value that direct-reading spectrometer reads P91 steel detection sample is read out in analysis condition-stainless steel group.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112362638A (en) * | 2020-11-05 | 2021-02-12 | 建龙北满特殊钢有限责任公司 | Method for measuring MC6 chromium content by photoelectric direct-reading spectrometer |
| CN114324199A (en) * | 2021-12-28 | 2022-04-12 | 建龙北满特殊钢有限责任公司 | Method for measuring sulfur content by photoelectric direct-reading spectrometer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738412A (en) * | 2008-11-17 | 2010-06-16 | 鞍钢股份有限公司 | Method for measuring nitrogen content in coated or plated steel plate |
| CN102539468A (en) * | 2010-12-17 | 2012-07-04 | 天津重型装备工程研究有限公司 | Analytical method of nitrogen content in scrap like steel |
| CN103335997A (en) * | 2013-06-17 | 2013-10-02 | 河北省首钢迁安钢铁有限责任公司 | Method for analyzing nitrogen components of furnace front low-nitrogen steel sample |
| CN106525757A (en) * | 2016-12-12 | 2017-03-22 | 陕西宏远航空锻造有限责任公司 | Method of measuring trace oxygen and nitrogen elements in alloy steel |
| CN106546574A (en) * | 2016-10-28 | 2017-03-29 | 山西太钢不锈钢股份有限公司 | The spectrum analyses and bearing calibration of trace nitrogen in a kind of steel |
| CN108254234A (en) * | 2017-12-30 | 2018-07-06 | 振石集团东方特钢有限公司 | A kind of preparation method of stainless steel smelting process control standard specimen |
| CN109668872A (en) * | 2019-01-29 | 2019-04-23 | 南京钢铁股份有限公司 | A kind of direct-reading spectrometer surveys the analysis method of nitrogen in steel online |
-
2019
- 2019-08-13 CN CN201910744457.6A patent/CN110308098A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738412A (en) * | 2008-11-17 | 2010-06-16 | 鞍钢股份有限公司 | Method for measuring nitrogen content in coated or plated steel plate |
| CN102539468A (en) * | 2010-12-17 | 2012-07-04 | 天津重型装备工程研究有限公司 | Analytical method of nitrogen content in scrap like steel |
| CN103335997A (en) * | 2013-06-17 | 2013-10-02 | 河北省首钢迁安钢铁有限责任公司 | Method for analyzing nitrogen components of furnace front low-nitrogen steel sample |
| CN106546574A (en) * | 2016-10-28 | 2017-03-29 | 山西太钢不锈钢股份有限公司 | The spectrum analyses and bearing calibration of trace nitrogen in a kind of steel |
| CN106525757A (en) * | 2016-12-12 | 2017-03-22 | 陕西宏远航空锻造有限责任公司 | Method of measuring trace oxygen and nitrogen elements in alloy steel |
| CN108254234A (en) * | 2017-12-30 | 2018-07-06 | 振石集团东方特钢有限公司 | A kind of preparation method of stainless steel smelting process control standard specimen |
| CN109668872A (en) * | 2019-01-29 | 2019-04-23 | 南京钢铁股份有限公司 | A kind of direct-reading spectrometer surveys the analysis method of nitrogen in steel online |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112362638A (en) * | 2020-11-05 | 2021-02-12 | 建龙北满特殊钢有限责任公司 | Method for measuring MC6 chromium content by photoelectric direct-reading spectrometer |
| CN114324199A (en) * | 2021-12-28 | 2022-04-12 | 建龙北满特殊钢有限责任公司 | Method for measuring sulfur content by photoelectric direct-reading spectrometer |
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Application publication date: 20191008 |