BE360554A - - Google Patents
Info
- Publication number
- BE360554A BE360554A BE360554DA BE360554A BE 360554 A BE360554 A BE 360554A BE 360554D A BE360554D A BE 360554DA BE 360554 A BE360554 A BE 360554A
- Authority
- BE
- Belgium
- Prior art keywords
- iron
- core
- magnetic
- particles
- solution
- Prior art date
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 6
- 239000002966 varnish Substances 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000006249 magnetic particle Substances 0.000 claims description 4
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 229910000165 zinc phosphate Inorganic materials 0.000 claims description 3
- 238000009835 boiling Methods 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 3
- 238000000576 coating method Methods 0.000 claims 3
- 229910000398 iron phosphate Inorganic materials 0.000 claims 3
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 claims 3
- 238000000137 annealing Methods 0.000 claims 1
- 239000012256 powdered iron Substances 0.000 claims 1
- 229920003002 synthetic resin Polymers 0.000 claims 1
- 239000000057 synthetic resin Substances 0.000 claims 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims 1
- 235000009529 zinc sulphate Nutrition 0.000 claims 1
- 239000011686 zinc sulphate Substances 0.000 claims 1
- 239000011162 core material Substances 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 239000000696 magnetic material Substances 0.000 description 2
- 239000006247 magnetic powder Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001342 Bakelite® Polymers 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 229910000863 Ferronickel Inorganic materials 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- YZYDPPZYDIRSJT-UHFFFAOYSA-K boron phosphate Chemical compound [B+3].[O-]P([O-])([O-])=O YZYDPPZYDIRSJT-UHFFFAOYSA-K 0.000 description 1
- 229910000149 boron phosphate Inorganic materials 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 description 1
- 229910001463 metal phosphate Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/20—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder
- H01F1/22—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
- H01F1/24—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
- H01F1/26—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated by macromolecular organic substances
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Soft Magnetic Materials (AREA)
Description
<Desc/Clms Page number 1>
EMI1.1
porfMtiMneme&ttt aax noyaux ugaétiqU8 .
EMI1.2
préimte 1J1'tIeutiOB se rapporte aux noyaux mgnétiqaea et plus partioaliltrement à ceux ql1toD I1ti1iae au ombà l n. aIOc les bobines de charge employées dans lest ââiïg t'pboaiqQ8* L'objet de la présente invention est l'élàbontioa d'une matière à noyaux nouvelle et peurffttioîn4e'qii soit pea coateoae à fabriquer, à laquelle en 1 faïllement donner la forme désirée et qui, de p)\18 po881ci.1, un élevé les proprlétdo qu'on recherche îe plia pour les noya= des bobines de ohar,9# etent-à-dire poldlg *,,"itiD8 élevé et une forte r'.8t.... ohmique.
<Desc/Clms Page number 2>
On avait coutume jusqu'ici de construire la* noyaux pour bobines de charge en soumettant un mélange d'une matière magnétique finement divisée et d'un* matière ies- lante destinée à séparer aagaétiqument les particules de matière magnétique à de très fortes pressions en vue d'ebte- air l'adhérence des particules et de former un* une solide dont le poids spécifique soit voisin de celui du fer pare
Conformément à la présente invention,
la matière isolante comprend une pellicule de phosphate de fore et les particules sont de préférence agglomérées an moyen d'un liant formé d'un vernie résineux synthétique tel qu'un pro- duit de condensation du phénol et d'un aldéhyde .
Afin qu'on puisse plus facilement comprendre l'invention, il va être procédé à la description d'une méthode entre autres euivant laquelle elle peut être mise à exécution* On se servira de préférence aluns poudre de fer commune qu'on se procure facilement de le commerce, on bien d'un alliage de fer pulvérisé tel que du ferre-silicium ou du ferro-nickel, On recuit d'abord la poudre de fer dans des creusets hermétiques à une température de 600 C.
environ,, pais on le fait bouillir dans que solution de phosphate de zinc* Ce traitement a pour résultat la formation d'une pel- lacule Isolante de phosphate métallique sur la surface des Particules de fer ' Cette pellicule présente une grande résistance mécanique ainsi qu'une résistance électrique très élevée, ce qai la rend éminemment convenable pour la cen- faction des noyaux en poussière pour le* bobines de charge,
car sa résistance mécanique lui permet de résister aux opé- rations de moulage effectuées nous des pressions de 0 à 40 kilogs par millimètre carré sans rien perdre de ses pre-
<Desc/Clms Page number 3>
priâtes isolantes tout en lui assurant une perméabilité initiale voisine de celle du fer par,
Après l'avoir fait bouillir dans la solution de phosphate de zinc; on lave la poudre magnétique dans l'eau et on la sèche, En vue d'agglomérer ensuite les parti- cules magnétiques on les enduit d'une couche d'un vernis résineux synthétique de consistance convenable, vernis qu'on préparera de préférence à partir d'une poudre com- posée d'une matière connue sous l'appellation déposée de "Bakelite".
On soumet alors la poudre magnétique à une pression d'environ 60 kilogrammes par millimètre carré dans des moules chauffés à environ 90 C, de manière à former des bagues. Ces bagues peuvent maintenant servir à la confection de bobines de charge utilisées dans les lignes téléphoniques et à cet effet.) on en assemble un nombre convenable, de quatre à huit par exemple, reliées par du ruban et on bobine sur les moitiés opposées du noyau deux enroulements autour desquels on en embobine deux autres'* En service., l'un des enroulements intérieurs est connecté à l'enroulement extérieur opposé, et les deux bobines ainsi obtenues forment les enroulements de la bobine de charge, On fait ensuite sécher la bobine et on la noie dans de la résine,
On voit donc que le dispositif conforme à l'in- vention permet de construire à peu de frais des bobines de charge convenables présentant des qualités remarquables de faible encombrement et de grand rondement..
<Desc / Clms Page number 1>
EMI1.1
porfMtiMneme & ttt aax ugaétiqU8 nuclei.
EMI1.2
preimte 1J1'tIeutiOB relates to the nuclei mgnétiqaea and more partioaliltration to those ql1toD I1ti1iae at the ombà l n. aIOc the charging coils employed in the ballast ââiïg t'pboaiqQ8 * The object of the present invention is the elàbontioa of a new core material and fearffttioîn4e'qii either pea coateoae to manufacture, to which in 1 faïllly give the desired shape and which, from p) \ 18 po881ci.1, a high the proprlétdo one seeks îe folded for the noya = coils of ohar, 9 # that is to say poldlg * ,, "itiD8 high and a strong r ' .8t .... ohmic.
<Desc / Clms Page number 2>
It was heretofore customary to construct the cores for charge coils by subjecting a mixture of a finely divided magnetic material and an ies- lant material intended for the agaric separation of the particles of magnetic material to very high pressures in seen from the air the adhesion of the particles and to form a * a solid whose specific weight is close to that of iron par
In accordance with the present invention,
the insulating material comprises a film of boron phosphate and the particles are preferably agglomerated by means of a binder formed from a synthetic resinous varnish such as a condensation product of phenol and an aldehyde.
In order that the invention can be more easily understood, a description will be given of a method, among other things, by which it can be carried out * We will preferably use common iron powder alums which are easily obtained. of the trade, one well of a pulverized iron alloy such as iron-silicon or ferro-nickel, One first anneals the iron powder in hermetic crucibles at a temperature of 600 C.
approximately, it is boiled in a solution of zinc phosphate * This treatment results in the formation of an insulating film of metal phosphate on the surface of the iron particles. This film exhibits high mechanical strength as well as 'a very high electrical resistance, which makes it eminently suitable for the centering of cores into dust for the charging coils,
because its mechanical resistance allows it to withstand the molding operations carried out at pressures of 0 to 40 kilograms per square millimeter without losing any of its pre-
<Desc / Clms Page number 3>
insulating priates while ensuring an initial permeability close to that of iron by,
After boiling it in the zinc phosphate solution; the magnetic powder is washed in water and dried. In order to subsequently agglomerate the magnetic particles, they are coated with a layer of a synthetic resinous varnish of suitable consistency, which varnish should preferably be prepared in from a powder composed of a material known by the trade name "Bakelite".
The magnetic powder is then subjected to a pressure of about 60 kilograms per square millimeter in molds heated to about 90 ° C., so as to form rings. These rings can now be used to make charge coils used in telephone lines and for this purpose.) Assemble a suitable number of them, from four to eight for example, tied with tape and spool on opposite halves of the core two windings around which two more are wound '* In service., one of the inner windings is connected to the opposite outer winding, and the two coils thus obtained form the windings of the charging coil. coil and we drown it in resin,
It can therefore be seen that the device according to the invention enables suitable charging coils to be constructed inexpensively, exhibiting remarkable qualities of small size and great roundness.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE360554A true BE360554A (en) |
Family
ID=33846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE360554D BE360554A (en) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE360554A (en) |
-
0
- BE BE360554D patent/BE360554A/fr unknown
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