CN1746650A - Sampler of composite probe for sampling test sample with high purity - Google Patents

Sampler of composite probe for sampling test sample with high purity Download PDF

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Publication number
CN1746650A
CN1746650A CNA2005100075070A CN200510007507A CN1746650A CN 1746650 A CN1746650 A CN 1746650A CN A2005100075070 A CNA2005100075070 A CN A2005100075070A CN 200510007507 A CN200510007507 A CN 200510007507A CN 1746650 A CN1746650 A CN 1746650A
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CN
China
Prior art keywords
sample
mould
sampler
filtrator
epicoele
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CNA2005100075070A
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Chinese (zh)
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CN100570321C (en
Inventor
李万业
黄善春
金孝相
权镛澈
李钟旼
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Woojin Electro Nite Inc
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UJIN CO Ltd
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Publication of CN1746650A publication Critical patent/CN1746650A/en
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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
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N1/12—Dippers; Dredgers
    • G01N1/125—Dippers; Dredgers adapted for sampling molten metals
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0075—Treating in a ladle furnace, e.g. up-/reheating of molten steel within the ladle
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/08—Protective devices, e.g. casings
    • G01K1/10—Protective devices, e.g. casings for preventing chemical attack
    • G01K1/105—Protective devices, e.g. casings for preventing chemical attack for siderurgical use

Abstract

The present invention discloses an improved sampling device for a complex probe, which can sample a sample at a time to analyze temperature, oxygen and composition of molten metal during a steel manufacturing process and which can sample samples having high purity. The sampling device comprises an upper chamber mold which has a sprue for feeding molten metal therethrough, and a lower chamber mold which communicates with the upper chamber mold through a runner and in which a sample of molten steel is solidified. A filter is provided in the upper chamber mold.

Description

In order to obtain to have the sampler that is used for combined probe of high-purity sample
Technical field
The present invention relates to be used for the improved sampler of combined probe, it can detect the information about the composition of temperature, oxygen and motlten metal in steelmaking process.
Background technology
Usually, probe is used to measure the component and the temperature of molten steel at the steelmaking process of steel plant.Combined probe is the probe with multiple function.
Fig. 1 illustrates a kind of combined probe, and it has conventional sampler.
The bottom that temperature measurement unit 3 inserts main sleeve pipe 2 in combined probe 1, and sampler 4 is arranged on the upside of close temperature measurement unit 3 in the main sleeve pipe 2.Thereby combined probe 1 is immersed in the motlten metal of various refining furnaces (converter, EAF, AOD, VOD, RH-OB, LF, LT, B/B etc.) in steelmaking process, to carry out sampling process and to measure the temperature of molten steel.
Yet, particularly, the metal oxide that during the decarbonation process of refining process, produces in the stainless steel precision furnace reduction and desulfurized step in be reduced, and be contained in the motlten metal sulphur with react as the CaO of auxiliary material, thereby be removed with slag.
In this stage, because the deoxidation that is caused by silicon (Si), slag has very high basicity, and improved slag forms again, strong stirring and in reduction and desulfurized step use ferroalloy auxiliary material, produce a large amount of slags, and inert gas (Ar, N 2) continue to enter in the motlten metal in lower furnace one side.Therefore, the very out-of-flatness of the surface of motlten metal, therefore and can not clearly distinguish interface between slag and the motlten metal.Thereby, can not carry out desirable sampling with the probe of routine.
Fig. 2 a and 2b are respectively the cut-open view and the fragmentary, perspective views of routine sampling device 4.
Conventional sampler 4 comprises upper chambers 5 and bottom compartment 6.The molten steel of sending into upper chambers by inlet 7 flows to bottom compartment 6 downwards by runner 8, and solidifies within it then to be formed for the sample of constituent analysis.
When use had probe with the sampler of aut.eq., a large amount of slags that produce in the motlten metal refining process mixed mutually with the sample that is used to analyze, and make that composition is not normal and produce flaw in sample, thereby can not carry out constituent analysis.
In addition, because a large amount of gases that are included in the motlten metal cause hole, pin hole etc. at the sample that is used for analyzing, can not carry out constituent analysis.Particularly, because stainless heat conductivity is the 1/2-1/4 of ordinary steel, not solidifying in bottom compartment 6 finished when probe is in motlten metal.Thereby probe takes out from motlten metal when the gas that is present in this center probe part is not discharged to the outside as yet.In this stage, be that metal in about 2% the very narrow runner 8 of bottom compartment 6 at first solidifies at its volume, thereby the frozen metal cause forming a large amount of holes at the sample that is being used for analyzing when gas is enclosed in the sample.
Because above-mentioned shortcoming can not be used this probe in practical operation.Therefore, in fact, the operator directly measures temperature with disposable thermocouple after refining furnace tilts, and takes a sample with a spoon shape thing.
But, owing to making refining time, aforesaid manual operations increases, and cause throughput rate to reduce, refractory wear increases, and processing safety reduces.Therefore, because temperature is measured by hand after refining furnace tilts, sampling is carried out by hand, and drawing liquid (tapping) operation is delayed.Also have, because consider because stove tilts to make the temperature reduction, drawing liquid operates in than carrying out under the high 10 ℃ temperature of drawing liquid target temperature, and the efficient and the throughput rate of refining furnace obviously reduce.
In addition, the operator must be near the high temperature of refining furnace when temperature survey and sampling operation, because the sputter danger of motlten metal often has, and two operators must measure together simultaneously that they form a group, and laborer's throughput rate is obviously reduced.
Summary of the invention
Therefore, consider that the problems referred to above of the prior art propose the present invention, the objective of the invention is to use filtrator to guarantee normal sample.This filtrator is arranged in the upper chambers, to absorb slag, flows to bottom compartment so that prevent a small amount of slag that enters this upper chambers, and will convert laminar flow to by the turbulent flow that ferrostatic pressure causes.Thereby be implemented in the stable inflow of bottom compartment.
Another object of the present invention is to guarantee normal sample by reducing the overheated of molten steel.For this reason, the size of control runner also forms vent port, flows to bottom compartment with the gas that prevents to greatest extent to be included in the motlten metal, in case the metal in the fluid stopping road at first solidifies, and reduce the temperature of melt metal that flows to bottom compartment, thereby reduce the overheated of molten steel.
Another purpose of the present invention is to guarantee to boost productivity in the refining process and security.For this reason, the maximization of the thermal capacity of bottom compartment enters the setting rate of the molten steel of bottom compartment with increase.In addition, optimize sample shape and when upper chambers is removed, directly not being kept at the pneumatic conveyer at remaining solid matter then to be transported to the analysis room.Like this, under the situation that stove need not to tilt in refining process, can carry out temperature survey and sampling process automatically, guarantee to boost productivity in the refining process and security.
To achieve these goals, the invention provides a kind of sampler that is used for combined probe, comprise the epicoele mould, it has inlet and the cavity of resorption mould that is used to send into motlten metal, and it is communicated with this epicoele mould by runner and the sample of molten steel solidifies therein.At the epicoele mould filtrator is set.
Also have, the invention provides a kind of sampler that is used for combined probe, comprise the epicoele mould, it has inlet and the cavity of resorption mould that is used to send into motlten metal, and it is communicated with this epicoele mould by runner and the sample of molten steel solidifies therein.In this respect, the formation of this runner is so that the volume ratio of itself and bottom compartment is 5-11%.
In addition, the invention provides a kind of sampler that is used for combined probe, comprise the epicoele mould, it has inlet and the cavity of resorption mould that is used to send into motlten metal, and it is communicated with this epicoele mould by runner and the sample of molten steel solidifies therein.In this respect, form vent port in the bottom of epicoele mould.
Description of drawings
Above-mentioned and other purposes of the present invention, feature and advantage from the description of following joint accompanying drawing with easier to understand, wherein:
Fig. 1 illustrates the combined probe with routine sampling device;
Fig. 2 a and 2b illustrate conventional sampler;
Fig. 3 a and 3b are the cut-open views according to the sampler of the embodiment of the invention;
Fig. 4 a and 4b are the fragmentary, perspective views according to the sampler of the embodiment of the invention;
Fig. 5 a and 5b are the skeleton views according to the bottom of the upper chambers of the embodiment of the invention;
Fig. 6 is the cut-open view of sampler in accordance with another embodiment of the present invention; And
Fig. 7 a and 7b illustrate and use the sample that produces according to sampler of the present invention.
Embodiment
Describe embodiments of the invention below with reference to the accompanying drawings in detail.
Fig. 3 a and 3b are the cut-open views according to the sampler of the embodiment of the invention, and its middle filtrator is arranged on upper chambers.In Fig. 3 a, this filtrator is columniform, and in Fig. 3 b, this filtrator is hexagonal.
Insert in the main sleeve pipe of probe, this sampler comprise by the inlet 11 that is formed on its side, have cylindrical or part hexagon space epicoele mould 10, be arranged on the cavity of resorption mould 20 that is communicated with this epicoele mould 10 below by runner 12 of this epicoele mould 10, and motlten metal is filled in wherein.The space that is formed by epicoele mould 10 is called upper chambers 17, and the space that is formed by cavity of resorption mould 20 is called bottom compartment 18.And this epicoele mould 10 can be divided into top epicoele mould 15 and bottom epicoele mould 16.
Cylindrical or hexagon filtrator 13 is arranged in the epicoele mould 10, specifically, and in bottom epicoele mould 16.
This epicoele mould 10 can be divided into top and the bottom or about part.In the heart, epicoele mould 10 has cylindrical space in inlet, so that the sending into and the cunning that flattens that flows of motlten metal.In addition, owing to be columniform space, the insertion of the deoxidizer of form of springs will become easily and deoxidation efficient improves.Example at this stage deoxidizer comprises Ti, Zr, Al etc.
Bottom epicoele mould 16 has cylindrical space so that the surface area of the filtrator 13 that sets within it maximizes, thereby the capacity gauge and the gas that improve slag are discharged ability, and reduces the overheated of molten steel.
Alternatively, bottom epicoele mould 16 can have the hexagon space.In this case, hexagonal filtrator 13 inserts in this bottom epicoele mould.Filtrator 13 is supported and be fixed in the cylindrical space of top epicoele mould 15, and therefore, produces the assembling operability that becomes easily and improved filtrator 13.
The space of cavity of resorption mould 20, promptly bottom compartment 18 forms by this way, and its inside diameter reduces downwards gradually with predetermined ratio, to reduce solidifying of sample directivity.Thereby the flaw in the sample upwards moves, and therefore can normally guarantee the analysis area of sample.
In addition, the thermal capacity of cavity of resorption mould 20 is decided by the weight of the specific heat and the cavity of resorption mould of bottom compartment material.The size of sample reduces in guaranteeing the reliable scope of analysis, so that the maximization of the thermal capacity of cavity of resorption mould 20, bottom thickness (d) increases, and the maximization of the thickness of the wall of cavity of resorption mould, the cooling velocity of the motlten metal that increase enters from upper chambers 17, thus setting time reduced.Therefore, finish when solidifying in probe remains on motlten metal, thereby the inevitable flaw that solidifies that forms moves to upper chambers 17 from analysis area.So can guarantee the normality in this sample analysis district.
In this situation, preferred thermal capacity be 50cal/ ℃ or more than.In addition, the size of sample is set at 45-50mm, and the thickness of cavity of resorption mould 20 (d) is set at 15-25mm.
Preferred epicoele mould 10 is by pottery (Al 2O 3-SiO 2) make rather than quartzy (SiO 2).Ceramic powders block press mold pressing, and then sintering to produce the epicoele mould.Thereby the epicoele mould is given the ceramic sampler thermotolerance that is exposed under the high-temperature fusion steel.This is owing to it can prevent because due to the influence of the carbon component of polluting.The material of preferred cavity of resorption mould 20 is cast iron and cast steel cheaply, and it has high specific heat and processing easily, so that guarantee the normality of sample.
Preferably, the height of filtrator 13 remains on the radius with inlet 11, and just, the center of inlet 11 is the same.If the height of filtrator 13 is lower than the center of inlet 11, when sample and this probe separation, molten steel is solidified when the inlet from this inlet flows to the upside of filtrator downwards, and this unnecessary molten steel greater than the sample external diameter is formed on inlet 11.Therefore, must carry out pre-service or hit sample sample with beating.If the height of filtrator is higher than the center of inlet 11, sending into of motlten metal hindered, and therefore sample is filled in the bottom compartment scantily.Thereby, preferably the height of filtrator is arranged on the center of this inlet 11 and under-5mm is in the scope of+5mm.
In this situation, the external width of filtrator must be less than the diameter of sample.Its reason is when the height of filtrator 13 is lower than the center of this inlet, and molten steel flows downward and is set on the outside surface of this filtrator from the inlet of this inlet.Therefore, slit corresponding to the sample external diameter must be set around this filtrator.
In the practice, owing to be used for that sample delivery is had the admittance length of about 85mm to the common pneumatic conveyer of analysis room, the total length of preferred sample and upper chambers is about 80mm.Therefore, when height of specimen was 50mm, the thickness of preferred filters 13 was about 30mm.
The material of filtrator 13 is at 1600 ℃ of high temperature or above zirconia, and 1500-1600 ℃ aluminium, and 1300-1500 ℃ of branch quartz are so that regulate hot properties and accurate control composition.
As mentioned above, type of material changes along with temperature, loses function within the specific limits so that prevent the filtrator that is applied in the sampler, in scope, the intrinsic character of material not along with certain material under each temperature phase transformation and change.When selecting type of material, if with the quartz is that basic filtrator is used for 1600 ℃ or higher high temperature, begin to take place phase transformation at about 1350 ℃, and filtrator is 1600 ℃ of fusings, therefore, the hole of porosint is blocked, the filtrator appearanceization, and the filtrator of fusing enters bottom compartment, thereby the normality of negative effect sample.
Thereby filtrator has the poriness of hope by spongy porous ceramics manufacturing, so as motlten metal disorderly rather than uniaxially flow through the hole.
As for the hole of filtrator, filtrator has 5-20PPI (PPI: the hole hole count of per inch).
Its effect of filtrator with 5-20PPI is to increase surface area, because its convoluted path, the control molten metal flow reduces entering temperature, and mechanically filters the starting material that react greater than its hole at an upper portion thereof.
In addition, the basicity of slag is 1.5-2.5, and slag has fabulous wetting state to porcelain filter.Therefore, enter that slag in the mould arrives filtrator and then attached in the filtrator by the hole, thereby from motlten metal, separate.
But, when filtrator has 5PPI or hole still less, consider the control of slag, just, the major function of filtrator, molten steel are easy to enter into bottom compartment, mix with slag simultaneously, and the reduction temperature of melt metal, the overheated effect that causes reducing molten steel reduces, and the turbulent flow that has reduced molten steel is transformed into laminar flow so that make molten steel realize the effect that substep is filled.When filtrator has 20PPI or more hole, stop molten steel to flow to bottom compartment, make the sample lack of fill, this is undesirable.
Fig. 4 a and 4b are the skeleton views according to the sampler of the embodiment of the invention.The area of wherein comparing inlet with the routine sampling device becomes big.In Fig. 4 a, cavity mould has cylindrical space on the bottom, and in Fig. 4 b, cavity mould has the hexagon space on this bottom.
The runner 12 of sampler makes the filtrator 13 of upper chambers 17 be communicated with bottom compartment 18 and is used as and enters the introducing path of the molten steel of upper chambers 17 by inlet 11, to fill bottom compartment 18.
Preferably, runner 12 is 5-11% with the volumetric ratio of bottom compartment 18.The device reason be when the volumetric ratio of runner 12 and bottom compartment 18 less than 5% the time because the molten steel in the runner 12 is solidified earlier than the sample steel of bottom compartment, when sample solidifies, can not discharge gas, and therefore, in sample, form the hole.When volumetric ratio greater than 11% the time because, reduced, cause the flaw of sample owing to gas from the ability of bottom compartment 18 discharge gases owing to flowing of molten steel produces turbulent flow.
Fig. 5 a and 5b show the vent port 14 of the bottom that is arranged on bottom epicoele mould 16.In Fig. 5 a, this bottom epicoele mould 16 has cylindrical space, and in Fig. 5 b, this bottom epicoele mould 16 has the hexagon space.
Fig. 5 a and 5b show bottom epicoele mould 16 and reverse, preferably, lower discharge hole 14 at bottom epicoele mould 16 forms like this, each 2-4 vent port with certain width and 1-2mm length forms and-45 ° to+45 ° of the imaginary line inclinations at the center of central point that is connected epicoele mould 10 and inlet 11, so that discharge successfully is present in the gas in the bottom compartment 18.
The reasons are as follows.If gas is not discharged from bottom compartment in the motlten metal filling process,, be difficult to carry out desirable sample analysis because the flaw that gas causes is formed in the sample.In addition, why the reason of the digital value of limited angular is that gas flow paths concentrates on the front and rear of inlet path of navigation in the filling process of molten steel.In addition, the width of vent port becomes with length restriction so that the seepage of molten steel can not become the obstacle that uses pneumatic conveyer or analysis.
Fig. 6 is the cut-open view of sampler in accordance with another embodiment of the present invention.
The sampler of Fig. 6 comprises filtrator 13, runner 12 and vent port 14, and the combination of these key elements has improved the technology of producing clean sample significantly.
Fig. 7 a and 7b illustrate and use the sample that produces according to sampler of the present invention.
In Fig. 7 a, the bottom of upper chambers has cylinder form, and in Fig. 7 b, the bottom of upper chambers has hexagonal shape.After mould is removed, filtrator 13 be retained in sample 19 above.Cut this sample then to produce analytic sample.
The present invention may be better understood by following Example, to propose these examples and be in order to illustrate, and should not be interpreted as limitation of the present invention.
Example 1
In this example, use filtrator, but in comparative example, do not use filtrator.The results are shown in Table 1 for it.After molten steel is sampled, when obtaining can be used in the normal sample that carries out constituent analysis accurately, be judged to be successfully.On the other hand, when because slag and sample mix and can not carry out sample analysis ideally the time, be judged to be the ratio of failure.
Table 1
The use of filtrator Use Do not use
Failure ratio (%) 11.6％(7/43) 50％(15/30)
In this example,, utilize chi analytic approach (Chi Squarestatistical analysis) to determine the mortality of constituent analysis, found that it is quite satisfied, because the P value is 0.00 according to using filtrator.Thereby to utilize filtrator to be confirmed as be a key factor that influences the constituent analysis mortality.
Example 2
Operate, change the thermal capacity of mould simultaneously, the results are shown in Table 2 for it.After molten steel is sampled, when obtaining to be used for the normal sample of constituent analysis accurately, be judged to be successfully.On the other hand, when because slag and sample mix and can not carry out sample analysis ideally the time, be judged to be the ratio of failure.
Table 2
The thermal capacity of mould 46.4 51.4 57.1
Mortality (%) 60.0％(12/20) 28.6％(8/28) 17.2％(5/29)
In this example,, determine the constituent analysis mortality, found that it is gratifying, because the P value is 0.002 with the logistic regression statistical analysis method according to the thermal capacity of mould.Thereby it is a key factor that influences the constituent analysis mortality that the thermal capacity of mould is confirmed as.
The sample that utilization device according to the present invention obtains carries out following processing.
In the process of refining molten steel, probe drops in the refining furnace and is immersed in the motlten metal to the degree of depth apart from the about 500mm of molten metal surface, and the about 4-5 of Immersion time second, the refining furnace that adopts self-operated measuring unit simultaneously need not inclination but remains on the refining position.Thereby molten steel flows to the bottom compartment 18 that is arranged in the probe, forming sample 19, and this probe be recovered with sample from separating with it.The solid that is formed in the upper chambers 17 is removed or cuts away, and is placed in the conveyer, and is transported to the analysis room by the pneumatic pipe that transports, with the composition and the analysis ultimate constituent of analyzing the motlten metal in refining process.
In the present invention, though probe is immersed in the motlten metal and keeps within it 4-5 second, the motlten metal that enters upper chambers 17 by inlet 11 flows through filtrator 13 and runner 12 and enters bottom compartment 18 and begin within it to solidify.When this probe keeps certain hour (approximately 4-5 second) when being removed afterwards in motlten metal, be filled in the upper chambers 17 and this not solidified motlten metal since the effect of gravity be discharged out by inlet 11.The metal that solidifies is retained in filtrator 13 and the bottom compartment 18 and therefore can be directly put into pneumatic conveyer and do not need extra processing and be transported to the analysis room then, thereby having reduced the stand-by period after the sampling, the result reduces oxide on surface and reduces composition not normal.
In addition, sample the analysis room from its bottom 17-20mm with cutter cuts after, no matter whether see the cut surface that has the hole flaw to be formed on this sample, subsequently, the sample that the result obtains is analyzed with analyser.
Can know from top description and to see that the present invention has following advantage.
At first, during the refining process that has adopted a large amount of slags, oxygen and inert gas, thinking in the impossible process of normal specimens, owing in the sample of flaw when not being formed on the bottom, therefore do not need to carry out manual temperature survey and sampling operation.Therefore, can obtain the information of this process soon and therefore reduce refining time, thereby improve refining process.In addition, sampling operation carries out automatically, thereby has improved the security of operator and production.
The second, owing to do not need the sample of filling is carried out pre-service, guaranteed security.And sample carries out fast to the conveying of analysis room, has therefore reduced the processing time and has improved analysis precision significantly.
The 3rd, use filtrator to reduce the overheated of under 1600 ℃ or higher high temperature molten steel, thereby prevent slag and sample mix, and improved the outward appearance of sample surfaces.
The 4th, vent port is set from sample, to remove the flaw that causes by the air that is retained in the bottom compartment.
The 5th, the volumetric ratio of runner prevents the contraction that caused by solidifying of runner or because the flaw that gas causes.

Claims (10)

1. a sampler that is used for combined probe comprises the epicoele mould, and it has the inlet that is used to send into motlten metal; With the cavity of resorption mould, it is communicated with this epicoele mould by runner and the sample of molten steel solidifies therein, wherein in this epicoele mould filtrator is set.
2. sampler as claimed in claim 1, wherein this filtrator per inch has 5-20 hole (PPI).
3. sampler as claimed in claim 1, wherein this filtrator is by any made that is selected from zirconia, quartz and the aluminium.
4. sampler as claimed in claim 1, wherein this filtrator has cylinder form or hexagonal shape.
5. sampler as claimed in claim 1, wherein the external width of this filtrator is less than the external diameter of this sample, and the length of this sample is 45-55mm.
6. a sampler that is used for combined probe comprises the epicoele mould, and it has the inlet that is used to send into motlten metal; With the cavity of resorption mould, it is communicated with this epicoele mould by runner and the sample of molten steel solidifies therein, and wherein to form the volume ratio that makes runner and bottom compartment be 5-11% to this runner.
7. a sampler that is used for combined probe comprises the epicoele mould, and it has the inlet that is used to send into motlten metal; With the cavity of resorption mould, it is communicated with the epicoele mould by runner and the sample of molten steel solidifies therein, wherein forms vent port in the bottom of this epicoele mould.
8. according to any one sampler among the claim 1-5, wherein to form the volume ratio that makes runner and bottom compartment be 5-11% to this runner.
9. according to any one sampler among the claim 1-6, wherein form vent port in the bottom of this epicoele mould.
10. sampler according to Claim 8 wherein forms vent port in the bottom of epicoele mould.
CNB2005100075070A 2004-09-08 2005-02-06 In order to obtain to have the sampler that is used for combined probe of high-purity sample Active CN100570321C (en)

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KR1020040071712A KR100661538B1 (en) 2004-09-08 2004-09-08 Sampling device for Complex Probe for obtaining the sample with high purity
KR1020040071712 2004-09-08

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105445315A (en) * 2014-09-23 2016-03-30 又进电子骑士有限公司 Complex probe and shell container for complex probe
TWI655418B (en) * 2016-12-13 2019-04-01 比利時商賀利氏電測騎士國際公司 Direct analysis sampler
TWI655416B (en) * 2016-12-13 2019-04-01 比利時商賀利氏電測騎士國際公司 Direct analysis sampler

Families Citing this family (2)

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Publication number Priority date Publication date Assignee Title
KR100913216B1 (en) * 2007-09-03 2009-08-24 우진 일렉트로나이트(주) Deoxidation efficiency reinforced sampler
KR100979122B1 (en) * 2008-03-28 2010-08-31 우진 일렉트로나이트(주) Sampling device reinforced riser

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105445315A (en) * 2014-09-23 2016-03-30 又进电子骑士有限公司 Complex probe and shell container for complex probe
CN105445315B (en) * 2014-09-23 2018-04-06 又进电子骑士有限公司 Combined probe and the outer casing container for combined probe
TWI655418B (en) * 2016-12-13 2019-04-01 比利時商賀利氏電測騎士國際公司 Direct analysis sampler
TWI655416B (en) * 2016-12-13 2019-04-01 比利時商賀利氏電測騎士國際公司 Direct analysis sampler

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KR100661538B1 (en) 2006-12-27
TWI281025B (en) 2007-05-11
KR20060022919A (en) 2006-03-13
CN100570321C (en) 2009-12-16

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