CS200645B1 - Method of renovation of the ring moulds of the granulators - Google Patents
Method of renovation of the ring moulds of the granulators Download PDFInfo
- Publication number
- CS200645B1 CS200645B1 CS799777A CS799777A CS200645B1 CS 200645 B1 CS200645 B1 CS 200645B1 CS 799777 A CS799777 A CS 799777A CS 799777 A CS799777 A CS 799777A CS 200645 B1 CS200645 B1 CS 200645B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- granulators
- inductor
- matrix
- holes
- positioner
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 5
- 238000009418 renovation Methods 0.000 title description 4
- 239000000463 material Substances 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 239000011651 chromium Substances 0.000 claims description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 239000011733 molybdenum Substances 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 239000010937 tungsten Substances 0.000 claims description 2
- 229910052720 vanadium Inorganic materials 0.000 claims description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 2
- 230000006698 induction Effects 0.000 claims 1
- 239000012255 powdered metal Substances 0.000 claims 1
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 235000008753 Papaver somniferum Nutrition 0.000 description 1
- 240000001090 Papaver somniferum Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000009419 refurbishment Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Powder Metallurgy (AREA)
Description
(54) SPÓSOB RENOVÁCIE PRSTENCOVÝCH MATRÍC GRANULÁTOROV(54) RENOVATION METHOD OF GRANULATOR RING MATERIALS
Vynález ea týká prstencových matric, granulátorov, ktorým rieší ich renováciu.The invention ea relates to annular matrices, granulators, to which they solve their renovation.
V súčasnej době sa prstencové matrice granulátorov vyrábajú z ocelí povrchové kalených. Otvory v matriciach sú mierne kuželovité. Po opotřebení tvrdéj, povrchové zakalenéj vrstvy Salšie opotrebenie prebieha už v makkom materiáli s veíkou intenzitou. Mostiky medzi otvormi v matrici sú poměrně tenké a vplyvom nárazov lisovacej rolne dochádza k ich pozohýbaniu, čím sa vstup do kuželového otvoru zmenší a matrica po opotřebení do híbky asi 4 mm přestane plnil svoju funkciu. Toto je hlavný dovod vyradenia matric.At present, ring granules of granulators are made of surface hardened steels. The holes in the matrices are slightly conical. After wear of the hard, opaque, opaque layer The more severe wear already takes place in the poppy material with high intensity. The bridges between the holes in the die are relatively thin and are bent due to the impact of the press roller, thereby reducing the entrance to the cone hole and the die ceases to function after being worn down to about 4 mm. This is the main reason for discarding the matrices.
Uvedené nedostatky odstraňuje spdsob renovácie prstencových matric granulátorov, ktorého podstata spočívá v tom, že najprv sa vystružia otvory kuželovým nástrojem, potom sa do týchto otvorov vložia jadrá výhodné grafitové, 3alej sa na opotřebené plochy nasype práškový kovový materiál, ktorý sa potom roztaví indukčným ohrevom a po stuhnutí návarového prášku sa vyrazia jadrá z otvorov von a tieto otvory sa v návarovej oblasti vyleštia.These drawbacks are eliminated by the method of refurbishment of the annular matrices of the granulators, which consists in firstly reaming the holes with a conical tool, then inserting the advantageous graphite cores into these holes, after solidification of the surfacing powder, the cores are punched out of the openings and polished in the surfacing region.
Výhodou uvedeného spdsobu renovácle prstencových matric granulátorov je skutačnosl, že sa opotřebené matrice nevyra3ujú, čím sa zvýši využitelnost kovového materiálu. Pri vhodné legovaných práškoch sa z technologických operácií mdže vypustil kalenie, nakolko sa po stuhnutí vytvoří karbidická štruktúra. Týmto sposobom je možné vyrábal i nové matrice.An advantage of this method of renovating annular matrices of granulators is that worn matrices are not punched out, thereby increasing the usability of the metal material. With suitable alloyed powders, quenching can be omitted from the technological operations, since a carbide structure is formed after solidification. In this way, it is possible to produce new dies.
Na připojených výkresoch je znázorněný příklad renovácie prstencových matric granulátorov podlá vynále'zu, kde na obr. 1 Je znázorněný bokorysný rez a na obr. 2 nárysný rez matri200645 zThe attached drawings show an example of the renovation of the annular matrices of granulators according to the invention, wherein in FIG. 1 is a side cross-sectional view, and FIG. 2 front view of matri200645 z
200 845 cou.200 845 cou.
Matrica i je válcovou plochou položená na hladký polohovadle 7. Do vyetružených kuželových otvorov 2 sa vložla lisovaná grafitové jadrá 2, majúce tvar komolého kužele. Nad nejnlžšou častou vnútornej valcovej plochy matrice je uchytený induktor 5.The die 1 is a cylindrical surface laid on a smooth positioner 7. Pressed graphite cores 2 having a truncated cone shape are inserted into the tapered cone holes 2. An inductor 5 is mounted over the lowest part of the inner cylindrical surface of the matrix.
Mqtrica 1 sa na kladkách polohovadle 7 otáča v smere hodinových ručičiek, pričom před induktor g ea volné vrství kovový prášok 4, ktorý Je v oblasti pod induktorom g roztavený a po utuhnutí vytvára pevnú vrstvu 6 kovového epoja.Mqtrica 1 rotates clockwise on the positioner pulleys 7, whereby a metal powder 4 is deposited in front of the inductor g e and is loosely deposited in the region below the inductor g and forms a solid layer 6 of the metal epojus after solidification.
Pri výbere vhodných materiálov legovaných napr. přísadami mangánu, kremíka, wolfrámu, molybdénu, chrómu a vanádu ea životnost matrice predíži 2 až 3 krát.When selecting suitable materials alloyed e.g. by adding manganese, silicon, tungsten, molybdenum, chromium and vanadium, and the life of the matrix will prolong 2-3 times.
Možnost využitia vynálezu Je v krmovinárekom priemysle a tiež u výrobcov prstencových granulátorov.Possibility of using the invention It is in the feed industry and also in the producers of ring granulators.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS799777A CS200645B1 (en) | 1977-12-02 | 1977-12-02 | Method of renovation of the ring moulds of the granulators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS799777A CS200645B1 (en) | 1977-12-02 | 1977-12-02 | Method of renovation of the ring moulds of the granulators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS200645B1 true CS200645B1 (en) | 1980-09-15 |
Family
ID=5430003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS799777A CS200645B1 (en) | 1977-12-02 | 1977-12-02 | Method of renovation of the ring moulds of the granulators |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS200645B1 (en) |
-
1977
- 1977-12-02 CS CS799777A patent/CS200645B1/en unknown
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