EP1156900A1 - Giesskammer, insbesondere für das druckgiessen von metallen - Google Patents
Giesskammer, insbesondere für das druckgiessen von metallenInfo
- Publication number
- EP1156900A1 EP1156900A1 EP00903698A EP00903698A EP1156900A1 EP 1156900 A1 EP1156900 A1 EP 1156900A1 EP 00903698 A EP00903698 A EP 00903698A EP 00903698 A EP00903698 A EP 00903698A EP 1156900 A1 EP1156900 A1 EP 1156900A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- casting chamber
- casting
- coolant channel
- chamber according
- coolant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/2015—Means for forcing the molten metal into the die
- B22D17/2038—Heating, cooling or lubricating the injection unit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/2015—Means for forcing the molten metal into the die
- B22D17/2023—Nozzles or shot sleeves
Definitions
- the present invention relates to a casting chamber, in particular for the pressure casting of metals, with an outer jacket and an inner cylinder inserted into the outer jacket and connected to it in particular by a shrink fit.
- Casting chambers of the type mentioned above are primarily used in die casting machines for die casting metals such as aluminum, magnesium and brass.
- horizontal casting chambers are mainly used, which have a casting material filler opening on the top on their machine-side end and a casting material outlet opening on their other mold-side end.
- the casting chambers are sometimes exposed to high loads, which are primarily due to the high temperatures of the casting material.
- Temperature differences of up to 300 ° C, which can cause the casting chamber to warp in a banana shape.
- Another problem is that due to the different filling levels of the casting material, the casting chamber becomes differently hot during die casting, with the result that it deforms out of round. Furthermore, temperatures of more than 600 ° C are achieved during the filling process below the filling opening. At this temperature, iron atoms can diffuse out of the surface of the casting chamber steel body, as a result of which the surface becomes brittle and flakes off, so that leaching occurs.
- the object of the invention is therefore to design a casting chamber of the type mentioned at the outset in such a way that deformations due to temperature stresses and washouts in the region of the filling opening are largely prevented.
- At least one coolant channel is formed between the outer jacket and inner cylinder, which extends over at least part of the axial length of the casting chamber.
- a coolant such as oil or water can be guided through the coolant channels provided according to the invention, which cools the casting chamber at least in the areas in which particularly high temperatures occur.
- the at least one coolant channel extends essentially over the entire axial length of the casting chamber, since the temperature profile can be adjusted in an optimal manner over the entire casting chamber.
- the coolant channels can be formed practically anywhere in the annular gap between the outer jacket and the inner cylinder.
- they can extend helically around the longitudinal axis of the casting chamber, in which case the cooling capacity can then be determined in a simple manner via the pitch and thus the distance between the coils.
- the pitch of the helix remains constant.
- the coolant channel can also extend at least in an axial section of the casting chamber in a meandering manner with sections running in the direction of the mold side and back again around the circumference of the casting chamber. In the same way, helical sections can be alternately combined with meandering sections.
- the inlet of the coolant channel is on the machine side and the outlet is on the mold side of the casting chamber, in which case the at least one coolant channel can be designed such that the cooling fluid moves the coolant channel in a direction from the machine side to the mold side flows through.
- the inlet and the outlet of the coolant channel can also both be located on the machine side of the casting chamber, in which case, according to a preferred embodiment, the coolant channel then has a first helical section running from the inlet in the direction of the mold-side end of the casting chamber and an adjoining section extending back to the outlet - Kenden second helical section, so that the coolant channel is designed in the manner of a two-start thread. It is essential that the inlet is on the hot machine side so that the coolant, which is still cold, can achieve the greatest cooling effect here.
- the casting chamber can be divided axially into a base body and an interchangeable bushing having the filling opening for the casting material.
- a coolant channel should be formed at least in the base body, wherein a coolant channel can also be formed in the interchangeable bushing, but need not.
- the coolant channel in the interchangeable bush can either be supplied with coolant independently of the coolant channel in the main body, or its outlet can be connected to the inlet of the coolant channel in the main body, so that the coolant is first led through the interchangeable bush and then through the main body.
- 1 shows a first embodiment of a one-piece casting chamber according to the present invention in side view with a helical coolant channel
- 2 shows a second embodiment of a one-piece casting chamber according to the present invention in side view with a meandering coolant channel
- FIG. 3 shows a third embodiment of a one-piece casting chamber according to the present invention in a side view with a partly helical and partly meandering coolant channel
- FIG. 4 shows a fourth embodiment of a one-piece casting chamber according to the present invention in side view with a coolant channel designed in the manner of a two-start thread
- FIG. 5 shows a fifth embodiment of a one-piece casting chamber according to the present invention in front view
- FIG. 6 shows a sixth embodiment of a casting chamber according to the present invention
- FIG. 7 shows a base body of a split casting chamber according to the present invention with a helically designed coolant channel
- 8 shows a main body of a split casting chamber according to the present invention with a coolant channel designed in the manner of a two-start thread
- FIG. 9 shows a base body of a split casting chamber according to the present invention with a meandering coolant channel
- FIG. 10 shows a further embodiment of a base body with a meandering coolant channel
- FIG. 11 is a side view of an interchangeable socket for connection to a base body according to FIGS. 7 to 10,
- FIGS. 14 shows a further embodiment of an interchangeable socket for connection to a base body according to FIGS. 7 to 10 in a side view
- 15 shows the interchangeable bushing along section II in FIGS. 14 and
- FIG. 16 shows the interchangeable bushing along the section II-II in FIG. 14.
- FIGS. 1 to 6 show various embodiments of a horizontal casting chamber 1 according to the present invention, as is used in die casting machines for the die casting of metals such as aluminum, magnesium or brass.
- the casting chambers 1 are made in one piece, i. H. not subdivided in its axial direction, and comprise an outer jacket 2 and an inner cylinder 3 shrunk into the outer jacket 2.
- a filling opening 4 through which liquid or solidified metal is filled or inserted into the interior of the casting cylinder 1 can be, and at the other, mold-side end of the casting chamber 1, an outlet opening, not shown, is provided.
- a coolant channel 5 is formed in the annular gap between the outer jacket 2 and the inner cylinder 3, through which a coolant such as oil, water or the like can be passed during operation in order to cool the casting chamber 1 and in this way deformations of the casting chamber 1 otherwise occur due to temperature differences, to prevent or at least counteract them.
- the coolant channel 5, which in the in- nenwandung of the outer shell 2 and / or in the outer wall of the inner cylinder 3 can be formed differently in the different embodiments shown in Figures 1 to 6:
- the inlet 6 of the coolant channel 5 is at the machine end and the outlet 7 at the opposite, mold-side end of the casting chamber 1 and the coolant channel 5 extends helically from the inlet 6 to the outlet 7.
- the slope of the spiral of Coolant channel 5 is constant over the entire length of the horizontal cooling chamber 1.
- the slope can also vary over the axial length of the cooling chamber 5.
- it can be provided that in the area of the filler opening 4, where the temperature of the casting chamber 1 is at its highest during operation, the pitch of the helix is lower, so that the helix lies closer together and thus more cooling takes place.
- the inlet 6 and the outlet 7 of the coolant channel 5 also lie at the opposite ends of the casting chamber 1.
- the coolant channel 5 here extends in a meandering manner with sections A, which run from the machine side to the mold side and back again. B around the casting chamber 1 so that the coolant flows back and forth between the axial end portions of the casting chamber 9.
- the third embodiment of a casting chamber 1 according to the invention shown in FIG. 3 represents a combination of the previously described embodiments, in which the coolant channel 5 has a first section 5a in the region of the inlet fill opening 4, which has a meandering shape with sections running from the machine side to the mold side and back again A, B is formed.
- a second channel section 5b adjoins the meandering first channel section 5a, in which the coolant channel 5 is designed as a helix.
- This embodiment has the advantage that a high cooling capacity can be achieved in the area of the filling opening 4 due to the meandering design and closely spaced sections A, B.
- the inlet 6 and the outlet 7 of the coolant channel 5 are both at the machine end of the casting chamber 1.
- the coolant channel 5 is designed in the manner of a two-start thread and has a first section 5a, which extends from the inlet extends to the mold-side end of the casting chamber 1, and a second section 5b, which adjoins the first section 5a and runs back to the machine-side end.
- This embodiment in which the inlet 6 and outlet 7 of the coolant channel 5 both lie at the machine-side end of the casting chamber 1, has the advantage that the die-casting machine for which the casting chamber 1 is intended is not specifically designed for the removal of the coolant at the mold-side end needs to be.
- coolant channel 5 corresponds essentially to the embodiment shown in FIG. 2, since the coolant channel 5 is here also meandering with sections A, B running from the machine side to the mold side and back again. In contrast to the embodiment shown in FIG. 2, however, inlet 6 and outlet 7 of the coolant channel 5 are both at the machine end as in the casting chamber 1 shown in FIG. 4.
- the embodiment shown in FIG. 6 represents a combination of the two embodiments from FIGS. 4 and 5.
- the coolant channel 5 here has a meandering shape in a first section 5a, which is essentially located in the area of the filling opening 4, from the machine side the mold side and back again running sections A, B, and is formed in an adjoining second channel section 5b in the manner of a two-start thread, the coolant channel 5 initially extending from the first channel section 5a to the mold-side end and then back again.
- the outlet end of the second channel section 5b is then connected to the outlet 7, wherein the connecting section can also be meandering.
- the casting chamber 1 can also be axially subdivided, in which case it then has a base body 8 and an interchangeable bush 10 with the filling opening 4 that can be connected to it on the machine side.
- a coolant channel 5 is provided at least in the base body 8, wherein a coolant channel can also be formed in the interchangeable bush 10, but need not.
- FIGS. 7 to 10 each show base bodies 8 with differently designed coolant channels 9, it being provided in each case that this coolant channel 9 is supplied with a coolant separately from a coolant channel possibly provided in the interchangeable bush 10.
- the coolant channel 9 extends in a helical manner, similar to the casting chamber 1 shown in FIG. 1, between an inlet 12 provided at the machine-side end and an outlet 13 provided at the mold-side end, so that a coolant extends the base body 8 in flows in one direction.
- inlet 12 and outlet 13 of the coolant channel 9 are both at the machine-side end of the base body 8 and the coolant channel 9 is in the manner of a two-start thread with a first section 9a, which extends from the inlet 12 to the mold-side end of the Basic body 8 extends, and an adjoining second section 9b, which extends back to the outlet 13, formed.
- the coolant channel 9 extends in a meandering manner between the two axial ends of the Base body 8 along the circumference of the casting chamber 1, the inlet 12 and the outlet 13 in the embodiment shown in FIG. 10 both lying on the machine-side end of the base body 8, while in the embodiment shown in FIG. 8 the inlet 12 on the machine-side end and the outlet 13 is provided at the mold-side end of the base body 8.
- FIGS. 11 to 13 and 14 to 16 show two embodiments of interchangeable bushes 10 which can be connected to the base body 8 of FIGS. 7 to 10.
- the two interchangeable bushes 10 are provided with a coolant channel 11 which extends between the outer jacket 2 and the inner cylinder 3 and extends in a meandering manner between the axial ends along the circumference of the interchangeable bushing 10.
- the two interchangeable bushes 10 differ only insofar as, in the embodiment shown in FIGS. 14 to 16, inlet 14 and outlet 15 of the coolant channel 11 both lie at the machine-side end of the interchangeable bush 10, while in the embodiment shown in FIGS. 11 to 13 the inlet 14 and the outlet 15 of the coolant channel 11 is provided at the opposite axial ends of the interchangeable bush 10.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Continuous Casting (AREA)
- Moulding By Coating Moulds (AREA)
- Organic Insulating Materials (AREA)
- Measuring Fluid Pressure (AREA)
- Macromonomer-Based Addition Polymer (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19908392A DE19908392C2 (de) | 1999-02-26 | 1999-02-26 | Gießkammer, insbesondere für das Druckgießen von Metallen |
DE19908392 | 1999-02-26 | ||
PCT/EP2000/001237 WO2000051764A1 (de) | 1999-02-26 | 2000-02-16 | Giesskammer, insbesondere für das druckgiessen von metallen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1156900A1 true EP1156900A1 (de) | 2001-11-28 |
EP1156900B1 EP1156900B1 (de) | 2003-05-21 |
Family
ID=7898983
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00903698A Expired - Lifetime EP1156900B1 (de) | 1999-02-26 | 2000-02-16 | Giesskammer, insbesondere für das druckgiessen von metallen |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1156900B1 (de) |
AT (1) | ATE240809T1 (de) |
AU (1) | AU2548900A (de) |
DE (2) | DE19908392C2 (de) |
DK (1) | DK1156900T3 (de) |
ES (1) | ES2199771T3 (de) |
PT (1) | PT1156900E (de) |
WO (1) | WO2000051764A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10123028A1 (de) * | 2001-05-11 | 2002-11-21 | Ludger Weier | Verfahren und Vorrichtung zur Aufbereitung abgenutzter Druckguß-Füllkammern |
DE10205246B4 (de) * | 2002-02-08 | 2004-04-15 | Wieland-Werke Ag | Füllkammer für eine Druckgießmaschine |
CH704444A2 (de) | 2011-02-01 | 2012-08-15 | Frederic Muller | Einstückige Giesskammer einer Druckgiessmaschine, die zum Temperaturausgleich eine Kühleinrichtung aufweist. |
US8356655B2 (en) * | 2011-02-09 | 2013-01-22 | United Technologies Corporation | Shot tube plunger for a die casting system |
DE102017011321B3 (de) * | 2017-12-08 | 2019-05-16 | Wieland-Werke Ag | Füllkammer für eine Druckgießmaschine |
ES2763861B2 (es) * | 2018-11-29 | 2022-05-10 | Alrotec Tecnology S L U | Sistema de inyeccion |
CN110202116A (zh) * | 2019-07-18 | 2019-09-06 | 上海普锐赛司实业有限公司 | 压铸用料筒制作方法 |
CN111136235A (zh) * | 2020-01-13 | 2020-05-12 | 深圳领威科技有限公司 | 压铸机进料筒及其温度调节方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3516480A (en) * | 1968-06-17 | 1970-06-23 | Hamilton Die Cast Inc | Shot tube for a die casting type machine |
AT338307B (de) * | 1973-07-23 | 1977-08-25 | Voest Ag | Metallurgisches gefass, insbesondere konverter |
DE3323328C1 (de) * | 1983-06-29 | 1984-05-03 | Mahle Gmbh, 7000 Stuttgart | Einteiliger flüssigkeitsgekühlter Gießkolben |
JPS6167556A (ja) * | 1984-09-12 | 1986-04-07 | Nichiei Kozai Kk | ダイカスト射出スリ−ブ |
JPS61144256A (ja) * | 1984-12-18 | 1986-07-01 | Ube Ind Ltd | ダイカストマシンにおける溶湯鋳込方法 |
GB2228696B (en) * | 1987-10-07 | 1991-09-04 | Hitachi Metals Ltd | Die casting cylinder |
US4926926A (en) * | 1988-12-05 | 1990-05-22 | Zecman Kenneth P | Three layer shot sleeve assembly |
DE4440933C1 (de) * | 1994-11-17 | 1996-03-14 | Gerhard Dr Ing Betz | Horizontale Kaltkammer-Druckgießmaschine und Gießverfahren |
DE19522716C1 (de) * | 1995-06-22 | 1996-09-19 | Hotset Heizpatronen Zubehoer | Vorrichtung zur Beheizung von Verteilerrohren zum Zuführen von Fluiden |
-
1999
- 1999-02-26 DE DE19908392A patent/DE19908392C2/de not_active Expired - Fee Related
-
2000
- 2000-02-16 WO PCT/EP2000/001237 patent/WO2000051764A1/de active IP Right Grant
- 2000-02-16 PT PT00903698T patent/PT1156900E/pt unknown
- 2000-02-16 EP EP00903698A patent/EP1156900B1/de not_active Expired - Lifetime
- 2000-02-16 AT AT00903698T patent/ATE240809T1/de not_active IP Right Cessation
- 2000-02-16 DK DK00903698T patent/DK1156900T3/da active
- 2000-02-16 ES ES00903698T patent/ES2199771T3/es not_active Expired - Lifetime
- 2000-02-16 DE DE50002259T patent/DE50002259D1/de not_active Expired - Lifetime
- 2000-02-16 AU AU25489/00A patent/AU2548900A/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO0051764A1 * |
Also Published As
Publication number | Publication date |
---|---|
ES2199771T3 (es) | 2004-03-01 |
DE50002259D1 (de) | 2003-06-26 |
AU2548900A (en) | 2000-09-21 |
EP1156900B1 (de) | 2003-05-21 |
ATE240809T1 (de) | 2003-06-15 |
DK1156900T3 (da) | 2003-09-15 |
DE19908392A1 (de) | 2000-09-07 |
WO2000051764A1 (de) | 2000-09-08 |
DE19908392C2 (de) | 2001-06-07 |
PT1156900E (pt) | 2003-09-30 |
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