DE102009033387A1 - Method and device for casting molded parts, in particular non-iron anodes - Google Patents

Abstract

The method for casting molded parts such as non-ferrous anodes with a device (1) having molds (2), comprises filling the mold with the melt at a first location (3) by a melt supply source (4) and then conveying to a second place (5), and removing the molded part from the mold at the second location. A cooling section (6), in which the melt filled in the mold is cooled during the transport from the first place to the second place, is arranged between the first place and the second place, so that the melt solidifies to molded part. The method for casting molded parts such as non-ferrous anodes with a device (1) having molds (2), comprises filling the mold with the melt at a first location (3) by a melt supply source (4) and then conveying to a second place (5), and removing the molded part from the mold at the second location. A cooling section (6), in which the melt filled in the mold is cooled during the transport from the first place to the second place, is arranged between the first place and the second place, so that the melt solidifies to molded part. The cooling of the melt takes place in the area of the cooling section in regular manner, so that the cooling of the melt takes place according to a predetermined temperature profile (T) over a conveying path (s) and a conveying time (t). The volume flow of a cooling medium is set in the mold and/or anode for increasing or reducing the cooling of the melt in the mold. The molds are conveyed along a circular web. For beginning the production process, the volume flow of the cooling medium to the mold is regulated, so that the mold is heated according to the predetermined temperature profile. An independent claim is included for a device for casting molded parts such as non-ferrous anodes.

Description

The The invention relates to a method for casting molded parts, in particular non-ferrous anodes, with a device that has at least one mold, which at a first location of a Melting supply source is filled with melt, the subsequently promoted to a second location and from which the molding is removed at the second location, wherein between the first place and the second place a cooling section is arranged, in which the filled in the mold melt during transport from the first location to the second location is cooled, so that solidifies the melt to the molding. Furthermore, the invention relates to a device for casting of molded parts.

A method of this kind and a device for casting non-iron anodes is known for example from DE 102 18 958 A1 known. In the case of the formation of the casting apparatus as Anodengießkarussell rotates a number of molds about a pivot point on a support. The molds are filled with melt at a filling station. By clocked further rotation, the mold filled with melt passes into a cooling section in which the melt cools and solidifies. The cooling section consists of one or more cooling stations, which can be individually controlled. At a demolding station arranged behind the cooling section, the finished molded parts (anodes) are removed from the molds. So that the solidification of the melt can take place in a sufficient time, the molds are liquid-cooled, for which a cooling medium (cooling water) is sprayed onto the mold and / or anode, so that the solidification time of the melt is reduced. The process parameters, in particular the volume flow of water to the mold, are set per cooling station according to experience.

Said method or the corresponding device is used in particular to produce plate-shaped anodes. In addition to the mentioned DE 102 18 958 A1 also show the DE 103 28 654 A1 , the DE 10 2004 056 524 A1 and the DE 199 62 471 A1 Similar solutions for the casting of non-iron anodes.

adversely this is not always satisfactory process stability. This is especially true when high production volumes of molded parts present, d. H. when the casting capacity is high. Then the manufacturing process for producing the moldings can not be done with the degree of reproducibility which is desirable. The course of the solidification process is difficult to keep constant. Accordingly, can there are quality deteriorations of the moldings.

Of the Invention is therefore the object of a method and a Apparatus for casting molded parts, in particular of Non-ferrous anodes, to propose with or with which it is possible is, the solidification process of the melt in the mold in high To keep dimensions reproducible and thus the process stability to increase the manufacturing process. This should also the quality be kept high. This is mainly the production the molded parts with high production volumes, d. H. with high casting capacity allow.

The Solution of this problem by the invention is according to the method thereby characterized in that the cooling of the melt in the range the cooling line in a controlled manner so that the Cooling of the melt and mold according to a predetermined temperature profile over the conveyor or over the funding period takes place. The targeted cooling allows it to be independent of the inlet temperature in the cooling section, a constant outlet temperature of the Mold is achieved.

to Increase or reduce the cooling of the Melt in the mold is preferably the volume flow of a cooling medium adjusted to the mold and / or anode. The cooling medium is mostly water.

The At least one mold is preferred along a circular path promoted. Particularly preferred is a number of molds conveyed along the circular path (casting carousel), d. H. several molds in succession.

A Training provides that at the beginning of the production process of the Volume flow of the cooling medium to the mold so regulated is that the mold according to a predetermined Temperature profile warmed up and so quickly on the Operating temperature comes.

The device for casting shaped parts, in particular non-iron anodes, which has at least one mold, wherein at a first location a melt supply source for filling the mold with melt is arranged, wherein means for conveying the mold to a second location are present wherein at the second location means for removing the solidified molded part from the mold are arranged, wherein between the first location and the second location, a cooling section is arranged, in which cooled the melt filled in the mold during transport from the first location to the second location is, so that the melt solidifies to form the molding, and wherein means for applying a cooling medium, in particular of cooling water, are present on the mold for the cooling, according to the invention characterized by temperature measuring means, with which the temperature of the mold or the melt in the mold can be determined by adjusting means for influencing the volume flow of cooling medium to the mold and by control means to which the temperature measuring means and the adjusting means are connected, with which influencing the adjusting means is possible that the cooling of the melt takes place according to a predetermined target temperature above the conveying path or over the conveying time.

there can be arranged in each mold a temperature measuring means. Optionally, one or more temperature measuring means may be provided arrange it in the area or behind the cooling section, these measuring means for determining the temperature of the mold and / or the melt are formed.

The Device is preferably designed as Anodengießkarussell.

While in the prior art no kokillzenische cooling is provided, the invention allows individual cooling a single mold, so that the melt according to a can cool exactly predetermined temperature profile.

The Measurement of mold temperature can be done before entering the cooling section (Cooling tunnel) take place; then an individual cooling the mold by adjusting the amount of cooling water per time at each cooling station made the mold in the course of transport to the second place happens. At the outlet of the cooling section In turn, a control of the mold temperature can be done. The everything in closed loop. The molds of the anode pouring carousel Thereafter, the cooling section (the Cooling tunnel), which consists of three or more stations. Each cooling station can be controlled separately, thanks to appropriate control of motorized control valves in the Supply lines for the cooling water can be realized. So far was the volume flow of water at the desired level set constant.

By the measurement of the mold temperature in front of and behind the cooling tunnel Each mold can vary depending on the actual temperature be strongly cooled to a predetermined target temperature to reach.

The desired setpoint temperature or a desired temperature profile can be specified by the operator of the device. Operational The device may then be a variation of the data for optimization respectively.

In Advantageously, can be achieved with the invention that the manufacturing process of the moldings very stable and reproducible expires. Accordingly, a high quality level in the manufacture of the moldings, in particular the anodes ensured become.

It can be a very uniform solidification reach the melt in the mold. Therefore, especially at high casting capacity of said degree of process stability be ensured.

maloperations by the operator are largely limited, since only one target temperature or a desired temperature profile is specified.

The Service life of the molds can also be increased by means of the invention become.

The Invention is preferred in the context of an anode pouring carousel used.

Especially It is advantageous that the invention provides a targeted heating of Molds allowed at the start of production by less or less no cooling medium is passed to the mold. Accordingly, becomes a fast and stable start-up of the plant through a targeted Heating the mold allows. Also the locking of blocked anodes during the cooling cycle is possible.

The Invention can be used in both single and double carousels be used.

In The drawing is an embodiment of the invention shown. Show it:

1 the top view of an apparatus for casting non-iron anodes, designed as Doppelgießkarussell;

2 the course of the temperature in a mold as a function of the conveying path; and

3 the course of the temperature in a mold as a function of the delivery time.

In the 1 illustrated device 1 for casting moldings in the form of non-iron anodes is designed as a double carousel. There are thus two circular carrier 11 present, at the periphery of a number molds 2 is arranged. At the rotation of the carrier 11 become the molds 2 conveyed in the conveying direction F, as indicated by the arrows. This is where the molds lay 2 along the circumference of the carrier 11 a circular path back, ie go through a conveyor s.

In a first place 3 (Filling station) at a peripheral location of the carrier 11 there is a melt supply source 4 , At this melt of non-ferrous metal in the cavity of the molds 2 cast. When clocked Weiterbe because of the molds 2 along the circumference of the carrier 11 get the molds 2 in a cooling section 6 in which the melt cools and the non-ferrous metal solidifies. Upon further rotation in the conveying direction F, the molds 2 to a means 7 for removing the finished molded parts (anodes). These funds 7 are in a second location 5 (Demolding).

Every mold 2 is applied separately in the cooling stations with cooling water (not shown). By means of this coolant application, a desired volume flow (volume per time: dV / dt) of cooling water can be brought to the mold. Accordingly, it is possible to cool the mold to a desired degree to influence the cooling and solidification of the melt. For this purpose, only schematically indicated adjusting means 9 at the mold 2 available.

It is essential that the cooling of the melt in the region of the cooling section 6 is regulated in such a manner that the cooling of the melt according to a predetermined temperature profile T or a target temperature on the conveying path s or over the conveying time t takes place. This is on 2 and 3 pointed out, which is a temperature profile over the conveying path s ( 2 ) or over the delivery time t ( 3 ). The melt passes with a melt temperature T _S in the mold 2 , Until demolding, the melt must be cooled to a temperature T _E , so that the anode is inherently stable. This cooling must be from the point s _{3 in} the first place 3 up to the point s _{5 in} the second place 5 or analogously from time t ₃ to time t ₅ .

To achieve this according to a predetermined temperature profile of the target temperature, each mold is 2 with a temperature sensor 8th provided that the temperature of the mold 2 and thus the melt absorbs. The temperature signal becomes a control means 10 passed that the adjusting means (valves) 9 can influence.

If a temperature is measured which is too high for a defined location, the control means will cause it 10 by appropriate control of the adjustment 9 an increase in the volume flow of the mold 2 acting cooling medium (water). In the opposite case, the volume flow is reduced.

Consequently can over a desired cooling profile over the conveying path s or the delivery time t driven regulated become.

Of course, it is also possible to measure the temperature of the mold only in a few places and the Kühlmittelbeaufschlagung the mold 2 then adjust based on these readings. In this case, it is possible in particular to carry out one measurement each before and after the cooling section and then to influence the volume flow accordingly.

LIST OF REFERENCE NUMBERS

1

contraption (Anodengießkarussell)

2

mold

3

first Location (filling station)

4

Melt supply source

5

second Place (demoulding station)

6

cooling section

7

medium for removing the molding

8th

Temperature measurement means (Temperature sensor)

9

adjustment

10

control means

11

carrier

F

conveying direction

T

Temperature / target temperature

TS

melt temperature

TE

mold removal

s

conveying

s3

path at the first place 3

s5

path at the second place 5

t

delivery time

t3

time at the first place 3

t5

time at the second place 5

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• DE 10218958 A1 [0002, 0003]
• - DE 10328654 A1 [0003]
• DE 102004056524 A1 [0003]
• - DE 19962471 A1 [0003]

Claims (9)

Method for casting molded parts, in particular non-iron anodes, with a device ( 1 ), the at least one mold ( 2 ), which at a first location ( 3 ) from a melt supply source ( 4 ) is filled with melt, which subsequently to a second location ( 5 ) and from the second place ( 5 ) the molding is removed, wherein between the first location ( 3 ) and the second place ( 5 ) a cooling line ( 6 ) is arranged, in which the in the mold ( 2 ) filled melt during transport from the first place ( 3 ) to the second place ( 5 ) is cooled, so that solidifies the melt to the molding, characterized in that the cooling of the melt in the region of the cooling section ( 6 ) in a controlled manner so that the cooling of the melt according to a predetermined temperature profile (T) over the conveying path (s) or over the conveying time (t) takes place. A method according to claim 1, characterized in that to increase or reduce the cooling of the melt in the mold ( 2 ) the volume flow of a cooling medium to the mold ( 2 ) and / or anode is set. Method according to claim 1 or 2, characterized in that the at least one mold ( 2 ) is conveyed along a circular path. Method according to claim 3, characterized in that several molds ( 2 ) are conveyed along the circular path. Method according to one of claims 2 to 4, characterized in that at the beginning of the production process, the volume flow of the cooling medium to the mold ( 2 ) is regulated so that the mold ( 2 ) is heated according to a predetermined temperature profile. Contraption ( 1 ) for casting moldings, in particular non-iron anodes, the at least one mold ( 2 ), wherein at a first location ( 3 ) a melt supply source ( 4 ) for filling the mold ( 2 ) is arranged with melt, wherein means for conveying the mold ( 2 ) to a second location ( 5 ), where at the second location ( 5 ) Medium ( 7 ) for removing the solidified molding from the mold ( 2 ), wherein between the first location ( 3 ) and the second place ( 5 ) a cooling line ( 6 ) is arranged, in which the in the mold ( 2 ) filled melt during transport from the first place ( 3 ) to the second place ( 5 ) is cooled, so that the melt solidifies to form the molding, and wherein means for applying a cooling medium, in particular cooling water, on the mold ( 2 ) are present for the cooling thereof, in particular for carrying out the method according to one of claims 1 to 5, characterized by temperature measuring means ( 8th ), with which the temperature (T) of the mold ( 2 ) or the melt in the mold ( 2 ), setting means ( 9 ) for influencing the volume flow of cooling medium to the mold ( 2 ) and control means ( 10 ), with which the temperature measuring means ( 8th ) and the adjustment means ( 9 ), the control means ( 10 ) the adjusting means ( 9 ) for cooling the melt according to a predetermined target temperature (T) over the conveying path (s) or over the conveying time (t) influence. Device according to claim 6, characterized in that in each mold ( 2 ) a temperature measuring means ( 8th ) is arranged. Apparatus according to claim 6, characterized in that one or more temperature measuring means ( 8th ), in the area or behind the cooling section ( 6 ) are arranged stationary. Device according to one of claims 6 to 8, characterized in that it as Anodengießkarussell is executed.

Images