CH320831A - Device for sand processing, in particular for molding sand - Google Patents
Device for sand processing, in particular for molding sandInfo
- Publication number
- CH320831A CH320831A CH320831DA CH320831A CH 320831 A CH320831 A CH 320831A CH 320831D A CH320831D A CH 320831DA CH 320831 A CH320831 A CH 320831A
- Authority
- CH
- Switzerland
- Prior art keywords
- sand
- processing
- molding
- molding sand
- hard metal
- Prior art date
Links
- 239000004576 sand Substances 0.000 title claims description 8
- 239000003110 molding sand Substances 0.000 title claims description 4
- 239000002923 metal particle Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/04—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
- B22C5/0409—Blending, mixing, kneading or stirring; Methods therefor
- B22C5/0472—Parts; Accessories; Controlling; Feeding; Discharging; Proportioning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/02—Dressing by centrifuging essentially or additionally
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Description
Gerät zur Sandaufbereitung, insbesondere für Formsand Sandaufbereitungsgeräte sind Geräte, bei welchen der Sand, z. B. Formsand, mechanisch umgeschaufelt, geschleudert oder dergleichen wird. Bei einer der in der Formerei häufig anzutreffenden Maschinen wird der Sand von Schaufeln eines Schaufelrades, das in rasche Umdrehung versetzt wird, geschleudert. Bei diesem Gerät., dessen Schaufelenden, welche den Sandteilchen die Beschleunigung zu ertei len haben, wurde zu deren Herstellung eine der besten Stahlsorten verwendet. und den noch nur eine Lebensdauer der Schaufelflä ehen von höchstens 36 Stunden erzielst.
Nach dieser Zeit waren die Schaufelflächen, welche eine Abmessung von 250 mal 20 mal 10 mm haben, über 75 % verbraucht und damit nicht. mehr verwendbar. Man versuchte andere Stahl sorten, konnte aber keine besseren Ergebnisse erzielen. Die Herstellung dieser Schaufelflä chen aus Hartmetall, z. B. Wolframka,rbid, wusste wegen des hohen Preises des Hart metalles abgelehnt werden.
Gemäss der Erfindung wird vorgeschlagen, an den besonders beanspruchten Teilen, z. B. voll Messern oder Schaufeln von Sandauf- bereitun,gsgeräten, Ha.rtmetallteilehen aufzu bringen. Diese Teilchen können in einem auf geschweissten oder aufgAlöteten Bettun@gsmate- rial, z. B. Eisen, gelagert sein.
Als Erfolg, dieser Massnahme ergab sich anstatt der bei Stahlschaufeln üblichen Lebens dauer von 11/-2 Tagen eine Lebensdauer von einem Monat. Diese Lebensdauer konnte durch Auflöten der Hartmetallteilchen, bei welchen als Bettungsmasse bzw. ass Lot das noch wei- ehere Kupfer verwendet wurde, auf über 21/2 Monate erhöht werden.
Device for sand processing, especially for molding sand Sand processing devices are devices in which the sand, for. B. molding sand, mechanically shoveled, thrown or the like. In one of the machines that are often found in the molding shop, the sand is thrown from the blades of a paddle wheel that is set in rapid rotation. One of the best types of steel was used in this device, the blade ends of which have to accelerate the sand particles. and that only achieves a service life of the blade surface of no more than 36 hours.
After this time, the blade surfaces, which have a dimension of 250 by 20 by 10 mm, were used up over 75% and thus not. more usable. Other types of steel were tried, but no better results could be obtained. The production of these Schaufelflä surfaces made of hard metal, z. B. Wolframka, rbid, knew to be rejected because of the high price of the hard metal.
According to the invention it is proposed that the particularly claimed parts such. B. full of knives or shovels from sand processing equipment, hard metal parts. These particles can be in a welded or soldered bedding material, e.g. B. iron, be stored.
The success of this measure resulted in a service life of one month instead of the normal service life of 11/2 days for steel blades. This service life could be increased to over two and a half months by soldering on the hard metal particles, for which the additional copper was used as bedding compound or solder.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT653052 | 1952-12-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH320831A true CH320831A (en) | 1957-04-15 |
Family
ID=32315079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH320831D CH320831A (en) | 1952-12-05 | 1953-12-05 | Device for sand processing, in particular for molding sand |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH320831A (en) |
| DE (1) | DE1705136U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1188768B (en) * | 1957-07-01 | 1965-03-11 | Pekay Machine & Engineering Co | Moulder stage of a molding sand preparation plant |
-
1953
- 1953-12-03 DE DE1953B0015727 patent/DE1705136U/en not_active Expired
- 1953-12-05 CH CH320831D patent/CH320831A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1705136U (en) | 1955-08-18 |
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