• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Equipment for preparing samples for x-ray or icp analysis comprising at least one oscillating tank, arranged in a stirring mechanism driven by a turning motor, with a crucible mounted on a ceramic support and arranged inside a coil of induction, through this last transmits an electrical power coming from an induction capacitor fed by a frequency converter, where the induction capacitor is mounted on the agitation mechanism forming part of the oscillator tank, a converter control system of frequency adjusts the resonance frequency as a function of current and voltage values measured continuously in the induction coil, as well as, regulates the transmitted electrical power as a function of temperature values continuously measured in the crucible. Procedure for the same purpose that employs a team like the one described above. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2544514A1
    申请号:ES201430280
    申请日:2014-02-28
    公开日:2015-08-31
    发明作者:Pedro VELLOSILLO POSTIGO
    申请人:EQUILAB S A；EQUILAB SA；
    IPC主号:
    专利说明:

    EQUIPMENT AND PROCEDURE FOR PREPARATION OF SAMPLES OF X-RAY ANALYSIS OR ICP

    DESCRIPTION

    OBJECT OF THE INVENTION 5

    The present invention relates to an equipment for the automatic preparation of samples of materials, for example, and not limited to minerals, cements, refractory elements, alloys, slags, etc. to those who wish to analyze to know their elementary composition; either, in solid form (beads), for later analysis with X-ray spectrometry techniques, or in a solution, if other analytical methods are desired, such as inductive coupling plasma analysis (ICP) . As well as, it is useful to carry out oxidations, that is, to perform fusions of non-oxidized materials with peroxides, which, once oxidized, can constitute raw material for the preparation of X-ray or ICP analysis samples.

    Also object of the present invention is a process for the same purposes, which employs equipment 15 according to the present invention.

    BACKGROUND OF THE INVENTION

    In certain industries, for example, the mining, ceramics and similar industries, it is often necessary to produce 20 samples, either, to carry out materials analysis or for other purposes.

    Various devices are known for sample preparation. Generally, they constitute equipment where a crucible with a portion of material and a flux is subjected to high temperatures by means of heating to cause its complete melting, and thereby, prepare a sample, either a pearl or a solution, for later analysis by X-rays or ICP respectively. Commonly used heating means are, for example, gas burners, induction coils and electric resistance furnaces.

    For example, patent document EP 0302848, published on February 8, 1989, discloses an apparatus 30 for producing a sample, which comprises a tilting mechanism of a support of a crucible, the latter being fixed to the support by means of a flange that allows you to lean, by the action of the tilting mechanism, to pour its contents into a pearl molding plate. Both the crucible and the dish are arranged on two burners provided to heat both the crucible and dish contents.
     35
    The use of gas burners as a source of heat entails certain drawbacks, for example, inefficient temperature control, as well as, does not constitute an optimal environment for the oxidation of the sample.
    From a safety point of view, the presence of flames with risks of poisoning or explosion is problematic, and the use of powerful gas extraction systems in the facilities where the samples are prepared is required. Likewise, there may be gas pressure problems if said facilities are located in height.

    For its part, US 4329136, published on May 11, 1982, discloses an apparatus for preparing a sample of material to be analyzed by X-rays. The apparatus comprises a crucible containing the material to be melted from which the sample will be molded, an induction coil that acts as a heating medium for the crucible, and a stirring means for the crucible that act while the material melts. , as well as, to rotate the crucible from a vertical position, while the fusion of the material takes place, to a position in which the molten material is poured to be molded. The stirring means includes a mobile support, which can rotate about a horizontal axis extended perpendicularly to the axis of the induction coil, fixing means of the induction coil to the mobile support, and means for imparting rotation to said support mobile. The induction coil is connected to a high frequency external current source.

    Unlike those that use gas burners, where heat is mostly received by the bottom of the crucible, increasingly hotter than its upper part, the device described above allows a more uniform heating of the crucible to be achieved by being arranged inside of an induction coil, causing a faster fusion of the sample. However, it requires the transmission of large currents at high frequency from an external source to the equipment for operation, as well as, the working parameters (voltage, current, frequency) of said source that provides heat are not controlled, taking into account the type of crucible used and the temperature taken by said crucible until the sample melts, all of which undermine the useful life of said crucible and the efficiency of the equipment.

    Normally, the type of crucible to be used is selected according to the material to be melted. Mostly, platinum alloy nickel crucibles are used, etc., in the case of oxidations, zirconium crucibles are used. Fundamentally, platinum crucibles have a high price, therefore, it is sought to avoid subjecting them to 65 conditions that may damage them, with a view to increasing their useful life as much as possible.
    Therefore, it is necessary to design a device that allows to carry out the preparation of an X-ray or ICP analysis sample, in an effective and efficient way, giving solution to the aforementioned problems.

    DESCRIPTION OF THE INVENTION
     5
    The present invention is established and characterized in the independent claims, while the dependent claims describe other features thereof.

    In view of the foregoing, the present invention relates to an equipment for preparing X-ray or ICP analysis samples, as well as, a method for the same purpose used by said equipment. 10

    The equipment comprises at least a first oscillating tank arranged in a stirring mechanism driven by a rotation motor. The stirring mechanism improves and speeds up the homogenization of the melting of a sample during heating.
     fifteen
    For its part, the first oscillating tank comprises a crucible mounted on a first ceramic support that is arranged inside a first induction coil.

    Through the induction coil an electric power is transmitted, from a first induction capacitor that is fed by a frequency converter, capable of heating, until fused, the sample of material and its flux contained in the crucible.

    Conveniently, the first induction capacitor is mounted on the stirring mechanism, next to the first induction coil, forming part of the first oscillating tank.
     25
    The provision of the induction capacitor on the same mobile system as the induction coil, as an integral part of the oscillating tank, eliminates the need to transmit large currents at high frequency from an external source to the equipment, simplifying the electrical system of the same by decreasing in To a large extent, the cross-section of the electrical conductors that carry the power to the frequency converter, as well as, reduces the magnitude of the current through the isolation converter of the frequency converter, 30 its construction being more compact.

    Likewise, the equipment comprises a frequency converter control system that adjusts the resonance frequency based on continuously measured voltage and current values in the first induction coil, as well as regulates the transmitted electrical power as a function of values of temperature measured continuously in the crucible.

    The adjustment of the frequency carried out by the control system guarantees the correct functioning of the frequency converter, guaranteeing at all times the power due in the crucible, regardless of the variations of its properties or the properties of the sample to be melted. This allows that in the equipment 40 crucibles of different materials can be used, since this is able to automatically adjust the resonance frequency of the system according to the type of crucible and the sample to be melted. Possibility that known devices do not have.

    On the other hand, it allows for effective protection against reactive currents, which appear to increase the quality factor of the induction coil, for example, in the absence of the crucible, that is, empty coil. In this case, the control system takes out the resonance converter increasing the frequency of the control pulses.

    In the same way, the absolute and continuous control of the crucible temperature and its content also contribute to its protection, following a progressive heating based on temperature ramps that allow the sample to melt in an effective and efficient way, without producing damage to the crucible.

    For its part, the procedure includes the following steps:
     55
    a) initiate the heating of a sample of material and a flux contained in a crucible, by means of an electromagnetic field generated by the transmission of electrical power through a first induction coil of a first oscillating tank, in which, it remains internally arranged the crucible,

    b) starting a stirring mechanism of the first oscillating tank, following an alternative movement 60 at a speed and during a melting time previously programmed according to the sample of material to be melted,

    c) adjust the resonance frequency of a frequency converter that feeds a first induction capacitor of the first oscillator tank based on current and voltage values continuously measured in the first induction coil,

    d) regulate the electrical power transmitted by the frequency converter, based on 5 temperature values continuously measured in the crucible, which are mapped to temperature values of a previously programmed crucible heating ramp according to the material sample to melt and the type of crucible used,

    e) stop the alternative movement of the stirring mechanism at the end of the programmed melting time 10, and

    f) pour the sample of completely molten material.

    The molten material can be poured, either, into a shaping plate to form a bead, if the sample will be analyzed with X-ray spectrometry techniques, or in a solution, if other analytical methods will be employed, such as, inductive coupling plasma analysis (ICP).

    Similarly, if the molten material is the result of oxidation, once the sample is melted, the crucible that contains it will be introduced into an acid solution for subsequent ICP analysis. twenty

    As can be seen, with the present solution, in a simple and economical manner, all of the sample preparation needs, whether solid or in solution, are covered, even if prior oxidation of the sample is required.
     25
    To its beneficial system of induction heating, the adjustment of the frequency of resonance of the frequency converter and the constant regulation of the temperature of the crucible are added, which allows an exhaustive control, in real time and modifiable at any time, of the process sample preparation, resulting in the care of the crucible and the efficiency of said preparation process.
     30
    DESCRIPTION OF THE FIGURES

    The present specification is complemented by a set of figures, illustrative of the preferred example and never limiting of the invention.
     35
    Figure 1 represents a perspective view of the equipment for preparing X-ray or ICP analysis samples.

    Figure 2 represents a perspective view of a first oscillating tank of the equipment of Figure 1.
     40
    Figure 3 represents an exploded perspective view of a second oscillating tank of the equipment of Figure 1, without the second ceramic support covering the second induction coil.

    Figure 4 represents a diagram, in block diagram form, of the electronic circuit of the equipment of Figure 1. 45

    DETAILED EXHIBITION OF THE INVENTION

    In view of the foregoing, the present invention relates to equipment for preparing X-ray or ICP analysis samples. fifty

    As Figures 1 and 2 show, the equipment comprises at least a first oscillating tank (1) arranged in a stirring mechanism (2) driven by a rotation motor (3).

    The first oscillator tank (1) comprises a crucible (1.1) mounted on a first ceramic support (1.2) which is arranged inside a first induction coil (1.3), which is formed by a copper tube by whose interior circulates a coolant at the same time that an electric power is transmitted from a first induction capacitor (1.4), which is fed by a frequency converter (4).

    For its part, the first induction capacitor (1.4) is mounted on the stirring mechanism (2), next to the first induction coil (1.3), forming part of the first oscillating tank (1). That is, the first induction capacitor (1.4) is arranged on the same mobile system of the first induction coil (1.3), as a component of the first oscillator tank (1).

    Additionally, the first oscillating tank (1) comprises two heat sinks (1.6) of the first induction capacitor (1.4), arranged on each of its sides, through which the cooling liquid of the induction coil (1.3) circulates.

    For its part, it is preferred that the stirring mechanism (2) comprises two lateral discs (2.2, 2.3), centrally connected by the ends of an axis (2.1) that rotates on two supports (2.4) fixed to the equipment frame. The lateral discs (2.2, 2.3) support the first oscillating tank (1) allowing its rotation, in one direction or another, within a maximum angle of 120o with respect to the vertical position of the crucible (1.1), according to the movement transmitted by the Spinning motor (3) for stirring and pouring of the sample contained in the crucible (1.1).
     10
    Likewise, it is preferred that one of the lateral discs (2.2) be part of a pulley and belt transmission (5) driven by the rotation motor (3).

    Additionally, the side disks (2.2, 2.3) are made of a non-metallic material, preferably Bakelite, with a view to electrically isolating the first oscillating tank (1) from the rest of the elements that make up the equipment.

    On the other hand, the frequency converter (4) that feeds the equipment can be of the resonant inverter type to LLC transistors or resonant inverter to LC series transistors.
     twenty
    As can be seen in figure 4, the equipment has a control system (5) of the frequency converter (4). Preferably, said control system (5) is a phase locked oscillator commanded by a microcontroller (5.1).

    The control system (5) adjusts the resonance frequency based on values of current (I) and voltage (V) continuously measured in the first induction coil (1.3).

    It is preferred that the current (I) and voltage (V) values be measured in the first induction coil (1.3) by means of a high frequency transformer with ferrite core (not shown in the figures). These values are communicated to the microcontroller (5.1), which causes the control system (5) to act on the frequency converter 30 (4), adjusting the resonance frequency to the type and conditions of the crucible (1.1) used , based on the values of current (I) and voltage (V) measured in the first induction coil (1.3).

    Likewise, the control system (5) regulates the transmitted electrical power based on temperature values (t) measured continuously in the crucible (1.1). It is preferred that said temperature values (t) be measured in the crucible (1.1) by means of an infrared pyrometer (1.5). Preferably, the pyrometer (1.5), shown in Figure 2, is mounted on the stirring mechanism (2) of the first oscillation tank (1), close to the first induction coil (1.3).

    The temperature values (t) measured in the crucible (1.1) are communicated to the microcontroller (5.1) of the control system 40 (5), which acts on the frequency converter (4) regulating the electrical power that it delivery to the first oscillation tank (1), with a view to maintaining the temperature values (t) measured in the crucible (1.1) in correspondence with temperature values that follow a heating ramp of the crucible (1.1) previously programmed according to the sample of material to melt.
     Four. Five
    As Figure 4 shows, it is preferred that the rotation motor (3) be driven by the micro-controller (5.1) of the control system (5), controlling the variable speed stirring of the crucible (1.1) or its positioning for the dump of the fused sample contained inside.

    As shown in Figures 1 and 3, it is preferred that the equipment comprises at least a second oscillating tank 50 (6), with a receiving plate (6.1) shaping an X-ray analysis sample, arranged under a first side ( 1.11) of the crucible (1.1) of the first oscillator tank (1).

    Preferably, the second oscillator tank (6) comprises a second induction capacitor (6.4) and a second induction coil (6.3) covered by a second ceramic support (6.2), on which the receiver plate (6.1) is arranged. .

    In the same way as the first induction coil (1.3), the second induction coil (6.3) is formed by a copper tube through which a coolant circulates internally at the same time that an electric power is transmitted that, in this case, Heat the receiving plate (6.1) to receive the fused sample and mold a bead for X-ray analysis.

    Preferably, the first and second induction coil (1.3, 6.3) are arranged at the end of a closed cooling system.
     65
    Likewise, it is preferred that the second induction capacitor (6.4) be electrically connected in parallel to the first induction capacitor (1.4), its resonant frequencies being synchronized with each other.

    On the other hand, preferably, the crucible (1.1) and the receiver plate (6.1) comprise two fans (7), arranged below the first and second induction coil (1.3, 6.3) respectively. As shown in Figure 4, it is desirable that both fans (7) be controlled by the microcontroller (5.1), with a view to being activated when it is programmed to accelerate the cooling of the crucible (1.1) and the receiver plate (6.1) respectively , either, to manipulate the crucible (1.1) or to extract the molded pearl from the receiving plate (6.1).

    On the other hand, as shown in Figure 1, it is preferred that the equipment comprises at least one container (8), 10 with a solution for an ICP analysis sample, arranged under a second side (1.12) of the crucible ( 1.1) of the first oscillator tank (1).

    Preferably, the container (8) comprises magnetic stirring means (8.1) that keep the solution in motion while pouring the fused sample into said container (8). fifteen

    Likewise, it is preferred that also the magnetic stirring means (8.1) of the container (8) be actuated by the microcontroller (5.1).

    Preferably, by means of an external control unit (not shown in the figures), the fusion processes 20 are instructed that will individually follow the microcontrollers (5.1) of up to 10 fusion modules arranged in the equipment, each consisting of at least a group consisting of a first oscillator tank (1), a second oscillator tank (6), and a container (8). These fusion modules can operate synchronized or totally independent, even by developing different preparation processes for different X-ray or ICP analysis samples. 25

    The external control unit can be a computer or other control system where, in addition, you can program, view and analyze the working parameters of each fusion module, diagnose any problem that may arise in one or more of these modules , as well as, give the starting orders to each of them. 30

    For its part, the process of preparing X-ray or ICP analysis samples, which is carried out in the equipment described above, comprises the steps described below.

    First, the heating of the material sample and the flux contained in the crucible (1.1) is initiated, by means of an electromagnetic field generated by the transmission of electric power through the first induction coil (1.3) of the first tank oscillator (1), in which, the crucible (1.1) is arranged internally.

    Next, the stirring mechanism (2) of the first oscillating tank (1) is started, following an alternative movement at a speed and during a melting time previously programmed according to the sample of material to be melted.

    The micro-controller (5.1) of the control system (5) of the equipment follows a fully customizable computer program, with previously defined fusion processes for samples of minerals, cements, refractory elements, alloys, slags, among other materials, as well as, for non-oxidized materials. Four. Five

    Then, the resonance frequency of the frequency converter (4) that feeds the first induction capacitor (1.4) of the first oscillator tank (1) is adjusted, based on values of current (I) and voltage (V) continuously measured in the first induction coil (1.3).
     fifty
    In this step, the micro-controller (5.1), based on the values of current (I) and voltage (V) that has been provided, calculates the instantaneous values of the voltage, current and offset between them and acts on the frequency converter (4) to maintain said calculated values. In this way, the delivery of the power due to the load is guaranteed at all times, regardless of its variations, the type of crucible (1.1) used, or the state in which it is last. All of which, allows the equipment 55 to use any type of crucible (1.1), be it made of patin alloy, nickel, ceramics, zirconium, etc.

    Thanks to the control that the micro-controller (5.1) maintains over the frequency converter (4), effective protection of the equipment is achieved against the appearance of reactive currents, due to the increase in the quality factor of the induction coil (3.1 ), for example, in the absence of a crucible (1.1), that is, when said induction coil (1.3) is empty and the equipment is in operation. In this case, the micro-controller (5.1) causes the control system (5) to remove the resonance frequency converter (4), increasing the frequency of the control pulses.

    In the next step, the electrical power transmitted by the frequency converter (4) is regulated, based on 65 temperature values (t) continuously measured in the crucible (1.1), which are matched with
    temperature values of a heating ramp of the crucible (1.1) previously programmed according to the sample of material to be melted and the type of crucible (1.1) used.

    Just as the computer program, which follows the microcontroller (5.1) during the automatic operation of the equipment, has programmed the variation of speed and the melting time during which the alternative movement of the first oscillating tank (1) must be developed depending on the material to be melted, a series of heating ramps are predefined therein that also respond to the material of the sample to be melted and the type of crucible (1.1) used. The temperature values that define said ramp are reproduced during the heating of the crucible (1.1) thanks to the action of the control system (5) on the frequency converter (4) in response to the temperature values (t) measured in the crucible (1.1). 10

    Once the melting time is over, the alternative movement of the stirring mechanism (2) is stopped, to which, the control system (5), by order of the micro-controller (5.1), instructs the programmed actions on the pouring of the sample of completely molten material according to the type of sample to be prepared.
     fifteen
    If the type of sample to be programmed is for use in X-ray analysis, it is preferred that the sample of molten material is poured into a receiving plate (6.1), molder of a solid sample in the form of a pearl.

    On the other hand, if it has been programmed to prepare a sample to be used in ICP analysis, it is preferred that the sample of molten material be poured into a container (8) containing a stirred solution.

    However, if oxidation is scheduled to be carried out, it is preferred that the oxidized material, in this case contained in a zirconium crucible (1.1), once the sample has melted, is cooled and introduced, including the crucible (1.1 ) that contains it, in an acid solution for later analysis by ICP. 25

    As can be seen, the present invention has been designed to operate completely automatically, with the ability to control and monitor in real time, even, in a completely independent manner, the process of preparing more than one sample developed simultaneously.
     30
    权利要求:
    Claims (15)
    [1]

    1. Equipment for the preparation of X-ray or ICP analysis samples comprising at least a first oscillating tank (1) arranged in a stirring mechanism (2) driven by a rotation motor (3), the first oscillating tank (1) comprises a crucible (1.1) mounted on a first ceramic support (1.2) that is arranged inside a first induction coil (1.3), through the first induction coil (1.3) a power is transmitted electric from a first induction capacitor (1.4) powered by a frequency converter (4), characterized in that the first induction capacitor (1.4) is mounted on the stirring mechanism (2), next to the first induction coil (1.3), as part of the first oscillator tank (1), a control system (5) of the frequency converter (4) 10 adjusts the resonance frequency based on continuously measured current (I) and voltage (V) values in the first inducc coil ion (1.3), and regulates the transmitted electrical power as a function of temperature values (t) continuously measured in the crucible (1.1).

    [2]
    2. Equipment according to claim 1, wherein the control system (5) of the frequency converter (4) is a phase-locked oscillator commanded by a micro-controller (5.1).

    [3]
    3. Equipment according to claims 1 and 2, wherein the values of current (I) and voltage (V) are measured in the first induction coil (1.3) by means of a high frequency transformer with ferrite core and communicated to the microcontroller (5.1). twenty

    [4]
    4. Equipment according to claims 1 and 2, wherein the temperature values (t) are measured in the crucible (1.1) by means of a pyrometer (1.5) and communicated to the microcontroller (5.1).

    [5]
    5. Equipment according to claims 1 and 2, wherein the rotation motor (2) is driven by microcontroller 25 (5.1), controlling the variable speed agitation of the crucible (1.1) or its positioning for the dump of the sample contained inside.

    [6]
    6. Equipment according to claim 1, wherein the frequency converter (4) is an LLC or LC series transistor resonant inverter. 30

    [7]
    7. Equipment according to claim 1, comprising at least a second oscillating tank (6), with a receiving plate (6.1) shaping an X-ray analysis sample, arranged under a first side (1.11) of the crucible (1.1) of the first oscillator tank (1).
     35
    [8]
    8. Equipment according to claim 7, wherein the second oscillating tank (6) comprises a second induction capacitor (6.4) and a second induction coil (6.3) covered by a second ceramic support (6.2), on which the receiver plate (6.1) is arranged.

    [9]
    9. Equipment according to claims 1 and 8, wherein the second induction capacitor (6.4) is electrically connected in parallel to the first induction capacitor (1.4), its resonant frequencies being synchronized with each other.

    [10]
    10. Equipment according to claims 1 and 8, wherein the crucible (1.1) and the receiver plate (6.1) comprise two fans (7), arranged under the first and second induction coil (1.3, 6.3) 45 respectively.

    [11]
    11. Equipment according to claims 1 and 8, wherein the first and second induction coil (1.3, 6.3) are arranged at the end of a closed cooling system.
     fifty
    [12]
    12. Equipment according to claim 1, comprising at least one container (8), with a solution for an ICP analysis sample, arranged under a second side (1.12) of the crucible (1.1) of the first oscillating tank (1 ).

    [13]
    13. Procedure for preparing X-ray or ICP analysis samples, using the equipment of claim 1, which comprises the following steps:
    a) initiate the heating of a sample of material and a flux contained in a crucible (1.1), by means of an electromagnetic field generated by the transmission of electrical power through a first induction coil (1.3) of a first oscillating tank (1), in which, the crucible (1.1) is arranged internally,
    b) starting a stirring mechanism (2) of the first oscillating tank (1), following an alternative movement at a speed and during a melting time previously programmed according to the sample of material to be melted,
    c) adjust the resonance frequency of a frequency converter (4) that feeds a first induction capacitor (1.4) of the first oscillator tank (1) based on values of current (I) and voltage (V) continuously measured in the first induction coil (1.3),
    d) regulate the electrical power transmitted by the frequency converter (4), based on temperature values (t) continuously measured in the crucible (1.1), which are mapped to temperature values 5 of a heating ramp of the crucible (1.1) previously programmed according to the sample of material to be melted and the type of crucible (1.1) used,
    e) stop the alternative movement of the stirring mechanism (2) at the end of the programmed time, and
    f) pour the sample of completely molten material.
     10
    [14]
    14. Method according to claim 13, wherein in step f) the sample of molten material is poured into a receiving plate (6.1) molder of a solid sample to be used in X-ray analysis.

    [15]
    15. Method according to claim 13, wherein in step f) the sample of molten material is poured into a container (8) with a stirred solution to be used in ICP analysis. fifteen
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    同族专利:
    公开号 | 公开日
    ES2544514B1|2016-06-09|
    WO2015128522A1|2015-09-03|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4329136A|1977-02-21|1982-05-11|Institut De Recherches De La Siderurgie Francaise |Apparatus for the automatic preparation of an X-ray spectrometry sample|
    US4612042A|1984-03-01|1986-09-16|Stelco Inc.|Method for automatically fluxing and casting samples|
    US5990465A|1995-03-27|1999-11-23|Omron Corporation|Electromagnetic induction-heated fluid energy conversion processing appliance|
    DE19927380A1|1999-06-16|2000-12-21|Linn High Therm Gmbh|Induction treatment device for glass vitrification of a sample prior to analysis has a treatment crucible for mixing sample and glass which has two axes or rotation or agitation to improve homogenization of glass and sample|
    WO2007109858A1|2006-03-27|2007-10-04|Liquid Ceramics Technology Pty Ltd|Method and apparatus for heating refractory oxides|
    KR102005538B1|2015-04-16|2019-07-30|스펙스 샘플프렙 엘엘씨|Fluxer having a modular electrically powered furnace|
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201430280A|ES2544514B1|2014-02-28|2014-02-28|Equipment and procedure for preparing X-ray or ICP analysis samples|ES201430280A| ES2544514B1|2014-02-28|2014-02-28|Equipment and procedure for preparing X-ray or ICP analysis samples|
    PCT/ES2015/070107| WO2015128522A1|2014-02-28|2015-02-18|Device and method for preparing analysis samples obtained by x-ray or icp|
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