NYKIEL JERZY (PL)
MARSZALIK KAZIMIERZ (PL)
KULAGA BRONISLAW (PL)
LEPTUCH STANISLAW (PL)
NYKIEL JERZY (PL)
MARSZALIK KAZIMIERZ (PL)
KULAGA BRONISLAW (PL)
| GB2060846A | 1981-05-07 | |||
| DE2346695A1 | 1975-03-20 |
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 02 26 February 1999 (1999-02-26)
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 04 30 April 1996 (1996-04-30)
PATENT ABSTRACTS OF JAPAN vol. 0130, no. 41 (M - 791) 30 January 1989 (1989-01-30)
PATENT ABSTRACTS OF JAPAN vol. 0130, no. 22 (M - 786) 19 January 1989 (1989-01-19)
| 1. | A ladle, in particular ceramic consisting of bailing part and runner part bucketshaped with holes on side surfaces in which sleeves are embedded for bucket fixture is characterized in that the bowl shape with end face (4) radius (R) of which is advantageously of 2/3 bowl height (H) and passes into bottom surface (5) having maximal hollow at 1/3 (L) of its length and then passes into runner chuteshaped surface (6) inclined at ß angle advantageously 27 32°, to tangent plane (7) and to bottom surface (5) and ended by U obtuse letter form, where one side wall (9) is inclined at a angle, advantageously 710° in relation to tangent plane (7) to bottom surface (5), whereas the second side wall (10), opposite has sunk reinforcing bracket (11), in the upper part of wall, preferably flat barshaped with holes (12) and advantageously sleeveshaped connector (13) to fix bucket arm (14). |
| 2. | A ladle, in particular ceramic according to Claim no. 1 characterized by internally buildin, sunk laminar reinforcements (15), at least one shift produced of glass fiber, preferably of glass laminate. |
| 3. | A ladle, in particular ceramic according to Claim no. 1 characterized by thickness (g) of bottom wall (5) is profitably twice bigger than changeable thickness of remaining walls and which changes from 0,04 to 0,2 of bowl height (H). AMENDED CLAIMS Received by the International Bureau on 20 December 2004 (20.12. 2004): original claims 13 replaced by amended claims 14] Patent claims 1. A ladle, in particular ceramic consisting of scoopshaped bailing part and pouring part with holes inside of side surfaces in which sleeves are embedded for fixing of ladle fastening arm, is characterized in that the vessel has a bowl form , of which side edge (4) with radius (R) passes into chuteshaped pouring surface inclined at (p) angle to the plane (7) tangent to bottom surface (5) and ended by obtuse Ushaped groove (8), where side edge (9) is inclined at (a) angle in relation to vertical plane perpendicular to tangent plane (7) to ladle bottom (5), whereas the wall in its upper part (10) has got buildin flat barshaped reinforcing bracket 11) with holes (12) in which are attached sleeves (13) for fixing of ladle fastening arm (14). |
| 4. | 2 A ladle, in particular ceramic according to claim no. 1 characterized in that the radius (R) passes in lower part into chuteshaped surface (6) and amounts 2/3 of bowl height (H), whereas chuteshaped surface (6) is inclined at (p) angle within the range 27°32°, profitably 32°, and the wall (9) is inclined at (a) angle within the range of 7°10°, profitably 9°. |
| 5. | 3 A ladle, in particular ceramic according to claim no. 1 characterized in that the ladle surface consists of alternating sunk glass fiber layers (15) surrounded by ceramic mass. |
| 6. | A ladle, in particular ceramic according to claim no. 1 characterized in that the bottom wall (g) thickness (5) is twice bigger than the thickness of remaining ladle walls, which change within the range from 0,04 to 0,2 of bowl height (H). |
The ceramic ladle is known from JP 11147168 and JP 63235064 patents, made of ceramic body and consisting of holder part, bucket-shaped part having oval form with the deepest hollow point situated in the central area and with uniform wall thickness and short release pouring out part and a runner. In known ladle constructions the side surface posses holes with embedded sleeves where holders are fixed: moreover, between side surface and a holder there is a closely surface-adherent spacer.
Such ladle design does not secure durability, does not optimize neither stresses, nor thermal stability and also because of ladle design some cracks may appear what might be dangerous for workers and causes metal impurities with spattering ceramic particles.
A ladle, in particular ceramic according to the invention is bowl- shaped with end surface, of which R radius is the most advantageously of 2/3 H bowl height and passes into base surface of bowl bottom, which is characterized by maximal ladle hollow at 1/3 L of its length and g bottom wall thickness g is advantageously twice greater than changeable thickness of remaining walls and which alters from 0,04 to 0,2 of H height and then passes into runner chute-shaped surface inclined at R angle, the most advantageously, 27-32° tangent plane to the bottom surface and ended with U-shaped obtuse groove. One side wall is inclined at a angle, advantageously, 7-10° in relation to a tangent plane and to a bottom surface, whereas the opposite second side wall having mounted supporting bracket sunk at upper part of wall, advantageously flat bar-shaped with holes and advantageously sleeve-shaped connector for fixing of bucket arm. Moreover, internal and external surfaces of ladle have build-in, sunk laminar reinforcements, of which at least one layer consists of glass fiber, preferentially glass laminate.
Advantage of ceramic ladle for automatic casting machine according to the invention is its optimal form of bailing and pouring part, optimal fixture of bucket part preventing the transition of vibrations from a bucket into a bowl and thereby smaller mechanical stresses, the protection against ceramic cracks through laminate reinforcements and also better security of workers, lack of metal impurities in case of cracks and also the thermal stability of transferred metal and its heating uniformity. Moreover, the embedding of reinforcing bracket together with connector for the bucket fixture during production of ceramic bowl secures, in principle crack-free connection of these elements.
The subject of an invention as a construction example is reconstructed on the drawing : Fig. 1 side view of ladle Fig. 2 side cross-section of ladle Ceramic ladle for the automatic casting machine consisting of bailing part (1), pouring part (2), fixture part (3), is bowl-shaped with end face (4) of which R radius is the most advantageously of 2/3 of bowl height H and passes into the bottom surface (5) having maximal hollow at 1/3 L of its length. Wall thickness g of bottom (5) is advantageously twice bigger than changeable thickness of remaining walls, which changes from 0,04 to 0,3 of H height and than passes into runner chute-shaped surface (6) of bottom (5), which is inclined at an 13 angle, the most advantageously of 32° to tangent plane (7) and to bottom surface (5) and ended with U obtuse shaped groove (8).
One side wall (9) is inclined at an a angle, the most advantageously of 9° in relation to tangent plane (7) to bottom surface (5), whereas the second side wall (10), opposite to wall (9) possesses fixed, reinforcing bracket (11), sunk in upper part of wall, advantageously, flat bar with holes (12) and threaded sleeves (13) to fix bucket arm (14).
Over its entire external and internal surface the ladle possesses build-in laminar reinforcements (15), where at least one layer is made of fiber glass, advantageously, glass laminate. The subject of an invention is applied in automatic casting machines where temperature stability of poured metal, design strength, reliability , stability and safety of casting manipulators is required.