WO2016125071A1 - Group of inserts for use in the production of modular bimetallic radiators - Google Patents

Group of inserts for use in the production of modular bimetallic radiators Download PDF

Info

Publication number
WO2016125071A1
WO2016125071A1 PCT/IB2016/050502 IB2016050502W WO2016125071A1 WO 2016125071 A1 WO2016125071 A1 WO 2016125071A1 IB 2016050502 W IB2016050502 W IB 2016050502W WO 2016125071 A1 WO2016125071 A1 WO 2016125071A1
Authority
WO
WIPO (PCT)
Prior art keywords
inserts
tubular
group
aluminium
reinforcement framework
Prior art date
Application number
PCT/IB2016/050502
Other languages
French (fr)
Inventor
Nicola PILLON
Viatcheslav IOUNOTCHKINE
Original Assignee
Campo Di Calore S.R.L.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Campo Di Calore S.R.L. filed Critical Campo Di Calore S.R.L.
Publication of WO2016125071A1 publication Critical patent/WO2016125071A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/0063—Casting in, on, or around objects which form part of the product finned exchangers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/0072—Casting in, on, or around objects which form part of the product for making objects with integrated channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/05308—Assemblies of conduits connected side by side or with individual headers, e.g. section type radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/082—Heat exchange elements made from metals or metal alloys from steel or ferrous alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/088—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal for domestic or space-heating systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0035—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for domestic or space heating, e.g. heating radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/04—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes comprising shape memory alloys or bimetallic elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/14—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes molded
    • F28F2255/143—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes molded injection molded
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/14—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes molded
    • F28F2255/146—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes molded overmolded

Definitions

  • the present invention regards the production of modular bimetallic radiators, more in particular it regards a method for producing the aforementioned modular bimetallic radiators and a group of inserts for use in such method.
  • some modular bimetallic radiators are obtained by mutually connecting a plurality of identical modules, each of which consists of a steel tubular insert, intended to receive the heat-carrier fluid, embedded in an external aluminium body representing the radiant element.
  • the aforementioned modules are produced by die-casting in a mould, which is provided with an imprint corresponding to each module to be obtained.
  • the aforementioned technique provides for arranging the steel insert in the mould imprint, in a suitable position, and subsequently filling the imprint with aluminium so as to embed the insert.
  • the present invention has the object of overcoming the aforementioned drawbacks belonging to the known technique described above.
  • an object of the present invention is to provide a method for producing modules for bimetallic radiators capable of both allowing to maintain the correct positioning of the steel inserts and preventing the deformation thereof, during the injection of aluminium, in presence of injection pressure higher than the one usually observed in two-imprint moulds.
  • the aforementioned object is attained through a group of inserts for producing modular bimetallic radiators according to claim 1 .
  • the aforementioned object is also attained through a method for producing modular bimetallic radiators according to claim 8.
  • the greater stability of the steel inserts during the injection allows using moulds with more than two imprints, thus allowing boosting productivity and hence reducing the unitary costs of the modules.
  • the present invention regards the die-casting of bimetallic radiator modules, each module comprising a steel tubular insert embedded in an external aluminium body.
  • each tubular insert 2 is provided with two openings 3 at the respective ends, through which the heat-carrier fluid flows in and out.
  • the ends of each tubular insert 2 carry a respective tubular extension 2a, extending according to an orthogonal axis with respect to the main axis of the tubular insert 2, the openings 3 being defined at the ends of the tubular extensions 2a.
  • the distance between the axes of the two tubular extensions 2a of each tubular insert 2 is referred to as "distance between centres”.
  • the term "distance between centres” shall indicate, conventionally, the length of the tubular inserts 2.
  • the present invention revealed to be particularly adapted to the production of moulds comprising tubular inserts 2 having a distance between centres comprised between 340 mm and 610 mm, in particular equivalent to 350 mm, 500 mm and 600 mm.
  • the method of the invention provides for having a mould for aluminium die-casting, indicated in fig. 2 with reference number 7 comprising a plurality of imprints 8 adjacent to each other and preferably identical, extending according to respective directions parallel to each other.
  • Each imprint 8 is connected to an injection manifold 11 through a respective supply channel 10.
  • the method provides for having a plurality of steel tubular inserts 2, preferably identical to each other, in the respective imprints 8, as represented in fig. 3.
  • each imprint 8 is provided with corresponding abutment surfaces, not represented in the figure but known per se, adapted to support the respective tubular insert 2 to hold it in position.
  • the mould 7 After positioning the tubular inserts 2, the mould 7 is closed and aluminium is injected into the injection manifold 11 , which reaches the imprints 8 through the supply ducts 10.
  • each tubular insert 2 to be embedded in aluminium thus obtaining a corresponding unfinished bimetallic radiator module.
  • tubular inserts 2 before arranging the tubular inserts 2 in the mould 7, they are rigidly connected to each other through an aluminium alloy reinforcement framework 4.
  • the mould 7 is provided with a plurality of connection channels 9 configured to receive the aforementioned reinforcement framework 4.
  • the reinforcement framework 4 contributes to holding the mutual positions between the different tubular inserts 2 during the injection of aluminium, reducing the displacements and deformations thereof and thus attaining the object of the invention.
  • the greater stability of the tubular inserts 2 in the mould 7 allows reducing the wear of the latter, increasing the durability thereof, and it allows limiting the deformations of the tubular inserts 2 during injection.
  • the aluminium injection pressure can be increased and, in particular, a mould 7 with more than two imprints 8 can be used.
  • the reinforcement framework 4 is particularly efficient for simultaneously moulding four modules in a mould with four imprints. More advantageously, the fact that the reinforcement framework 4 is also made of aluminium allows recovering it alongside the riser for subsequent use.
  • the connection channels 9 of the mould 7 are configured so that the injected aluminium surrounds the reinforcement framework 4 so as to embed it.
  • the embedment of the reinforcement framework 4 in the aluminium leads to the casting of the reinforcement framework 4, which merges with the riser into one and facilitates both the removal of the moulded piece and the subsequent reutilisation of the riser.
  • the invention also regards a group of inserts, indicated in its entirety in fig. 1 with reference number 1 , comprising the aforementioned tubular inserts 2 and the relative aluminium alloy reinforcement framework 4.
  • the tubular inserts 2 preferably identical to each other, are arranged parallel and adjacent to each other.
  • the reinforcement framework 4 is fixed to the tubular inserts 2 by bonding, or through any other known technique capable of allowing bonding steel to aluminium.
  • the reinforcement framework 4 preferably comprises two mutually parallel aluminium connection bars 5, which connect each pair of mutually adjacent tubular inserts 2 at the respective ends.
  • each connection bar 5 has a section in square millimetres comprised between 4% and 6% of the distance, in millimetres, between the centres of the two openings 3 of each tubular insert 2.
  • the tests carried out by the party filing the present invention revealed that the aforementioned diameter is the best compromise between the need of reducing the volume occupied by the reinforcement framework 4 and the need of conferring sufficient robustness to the group of inserts 1 , particularly in presence of four tubular inserts 2.
  • connection bars 5 is greater than the length of the tubular inserts 2.
  • each end of each tubular insert 2 is connected to the corresponding connection bar 5 through an extension 6 coaxial to the tubular insert 2.
  • the configuration of the reinforcement framework 4 described above allows reducing the deformation that the tubular extensions 2a of the tubular inserts 2 are subjected to due to the pressure induced by the various heat deformations that steel and aluminium are subjected to during moulding.
  • the connection bars 5 at contact with suitable support surfaces of the mould 7, adapted to hold the connection bars 5 in position, the aforementioned extensions 6 serve as tension rods and prevent the aforementioned deformation phenomenon.
  • the distance between the two connection bars 5 is comprised between 1 10% and 120% of the distance between the centres of the two openings 3 of each tubular insert 2 and preferably it is equivalent to 1 16% of the distance between the centres of the two openings 3.
  • the mutual connection of the tubular inserts through the reinforcement framework allows limiting the displacements of the inserts and the deformations thereof during injection, thus allowing the use of moulds with more than two imprints.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

Group of inserts (1) for use in the production of modular bimetallic radiators, comprising a plurality of steel tubular inserts (2) identical to each other, arranged parallel and adjacent to each other and each provided with two openings (3) at the respective ends, adapted to be embedded in respective die-cast aluminium bodies, rigidly connected by an aluminium alloy reinforcement framework (4).

Description

GROUP OF INSERTS FOR USE IN THE PRODUCTION OF MODULAR
BIMETALLIC RADIATORS
DESCRIPTION
The present invention regards the production of modular bimetallic radiators, more in particular it regards a method for producing the aforementioned modular bimetallic radiators and a group of inserts for use in such method. As known, some modular bimetallic radiators are obtained by mutually connecting a plurality of identical modules, each of which consists of a steel tubular insert, intended to receive the heat-carrier fluid, embedded in an external aluminium body representing the radiant element.
According to a known technique, the aforementioned modules are produced by die-casting in a mould, which is provided with an imprint corresponding to each module to be obtained.
The aforementioned technique provides for arranging the steel insert in the mould imprint, in a suitable position, and subsequently filling the imprint with aluminium so as to embed the insert.
The technique described above reveals the drawback of not allowing producing moulds with more than two imprints and, thus, it does not allow obtaining more than two modules per moulding.
The aforementioned drawback arises from the fact that, in case of more than two imprints, the aluminium injection pressure reaches levels that subject the moulds to early wear.
Due to the aforementioned wear, the positioning precision of the inserts in the imprints deteriorates, thus considerably increasing the percentage of discarded material.
The aforementioned high injection pressure reveals the further drawback of potentially deforming the inserts during injection, thus leading to problems similar to those described above.
The present invention has the object of overcoming the aforementioned drawbacks belonging to the known technique described above.
In particular, an object of the present invention is to provide a method for producing modules for bimetallic radiators capable of both allowing to maintain the correct positioning of the steel inserts and preventing the deformation thereof, during the injection of aluminium, in presence of injection pressure higher than the one usually observed in two-imprint moulds. The aforementioned object is attained through a group of inserts for producing modular bimetallic radiators according to claim 1 .
The aforementioned object is also attained through a method for producing modular bimetallic radiators according to claim 8.
Further detailed characteristics of the invention shall be outlined in the relative dependent claims.
Advantageously, the greater stability of the steel inserts during the injection allows using moulds with more than two imprints, thus allowing boosting productivity and hence reducing the unitary costs of the modules.
The object and these and other advantages to be mentioned hereinafter, shall be outlined during the description of a preferred embodiment of the invention, provided by way of non-exemplifying embodiment with reference to the attached drawings, wherein:
- fig. 1 schematically represents the group of inserts of the invention, in axonometric view;
- figs. 2 and 3 schematically represent two different steps of the method of the invention.
The present invention regards the die-casting of bimetallic radiator modules, each module comprising a steel tubular insert embedded in an external aluminium body.
As observable in fig. 1 , each tubular insert 2 is provided with two openings 3 at the respective ends, through which the heat-carrier fluid flows in and out. Preferably but not necessarily, the ends of each tubular insert 2 carry a respective tubular extension 2a, extending according to an orthogonal axis with respect to the main axis of the tubular insert 2, the openings 3 being defined at the ends of the tubular extensions 2a.
In the latter case, the distance between the axes of the two tubular extensions 2a of each tubular insert 2 is referred to as "distance between centres".
In case of tubular inserts 2 without tubular extensions 2a, the term "distance between centres" shall indicate, conventionally, the length of the tubular inserts 2.
The present invention revealed to be particularly adapted to the production of moulds comprising tubular inserts 2 having a distance between centres comprised between 340 mm and 610 mm, in particular equivalent to 350 mm, 500 mm and 600 mm. The method of the invention provides for having a mould for aluminium die-casting, indicated in fig. 2 with reference number 7 comprising a plurality of imprints 8 adjacent to each other and preferably identical, extending according to respective directions parallel to each other.
Each imprint 8 is connected to an injection manifold 11 through a respective supply channel 10.
The method provides for having a plurality of steel tubular inserts 2, preferably identical to each other, in the respective imprints 8, as represented in fig. 3. For this purpose each imprint 8 is provided with corresponding abutment surfaces, not represented in the figure but known per se, adapted to support the respective tubular insert 2 to hold it in position.
After positioning the tubular inserts 2, the mould 7 is closed and aluminium is injected into the injection manifold 11 , which reaches the imprints 8 through the supply ducts 10.
The aforementioned injection allows each tubular insert 2 to be embedded in aluminium thus obtaining a corresponding unfinished bimetallic radiator module.
According to the invention, before arranging the tubular inserts 2 in the mould 7, they are rigidly connected to each other through an aluminium alloy reinforcement framework 4.
For this purpose, the mould 7 is provided with a plurality of connection channels 9 configured to receive the aforementioned reinforcement framework 4.
The reinforcement framework 4 contributes to holding the mutual positions between the different tubular inserts 2 during the injection of aluminium, reducing the displacements and deformations thereof and thus attaining the object of the invention.
Advantageously, the greater stability of the tubular inserts 2 in the mould 7 allows reducing the wear of the latter, increasing the durability thereof, and it allows limiting the deformations of the tubular inserts 2 during injection.
Thus, the aluminium injection pressure can be increased and, in particular, a mould 7 with more than two imprints 8 can be used.
Tests carried out by the party filing the present invention revealed that the reinforcement framework 4 is particularly efficient for simultaneously moulding four modules in a mould with four imprints. More advantageously, the fact that the reinforcement framework 4 is also made of aluminium allows recovering it alongside the riser for subsequent use. Preferably, the connection channels 9 of the mould 7 are configured so that the injected aluminium surrounds the reinforcement framework 4 so as to embed it.
Advantageously, the embedment of the reinforcement framework 4 in the aluminium leads to the casting of the reinforcement framework 4, which merges with the riser into one and facilitates both the removal of the moulded piece and the subsequent reutilisation of the riser.
As mentioned previously, the invention also regards a group of inserts, indicated in its entirety in fig. 1 with reference number 1 , comprising the aforementioned tubular inserts 2 and the relative aluminium alloy reinforcement framework 4.
The tubular inserts 2, preferably identical to each other, are arranged parallel and adjacent to each other.
Preferably, the reinforcement framework 4 is fixed to the tubular inserts 2 by bonding, or through any other known technique capable of allowing bonding steel to aluminium.
As regards the reinforcement framework 4, it preferably comprises two mutually parallel aluminium connection bars 5, which connect each pair of mutually adjacent tubular inserts 2 at the respective ends.
Preferably, each connection bar 5 has a section in square millimetres comprised between 4% and 6% of the distance, in millimetres, between the centres of the two openings 3 of each tubular insert 2.
Advantageously, the tests carried out by the party filing the present invention revealed that the aforementioned diameter is the best compromise between the need of reducing the volume occupied by the reinforcement framework 4 and the need of conferring sufficient robustness to the group of inserts 1 , particularly in presence of four tubular inserts 2.
Preferably, the distance between the aforementioned connection bars 5 is greater than the length of the tubular inserts 2.
In addition, each end of each tubular insert 2 is connected to the corresponding connection bar 5 through an extension 6 coaxial to the tubular insert 2.
Advantageously, the configuration of the reinforcement framework 4 described above allows reducing the deformation that the tubular extensions 2a of the tubular inserts 2 are subjected to due to the pressure induced by the various heat deformations that steel and aluminium are subjected to during moulding. As a matter of fact, by arranging the connection bars 5 at contact with suitable support surfaces of the mould 7, adapted to hold the connection bars 5 in position, the aforementioned extensions 6 serve as tension rods and prevent the aforementioned deformation phenomenon.
Preferably, the distance between the two connection bars 5 is comprised between 1 10% and 120% of the distance between the centres of the two openings 3 of each tubular insert 2 and preferably it is equivalent to 1 16% of the distance between the centres of the two openings 3.
In the light of the above, it is clear that the invention attains the preset object.
As a matter of fact, the mutual connection of the tubular inserts through the reinforcement framework allows limiting the displacements of the inserts and the deformations thereof during injection, thus allowing the use of moulds with more than two imprints.

Claims

1 ) Group of inserts (1 ) for use in the production of modular bimetallic radiators, comprising a plurality of steel tubular inserts (2) identical to each other, arranged parallel and adjacent to each other and each provided with two openings (3) at the respective ends, adapted to be embedded in respective die-cast aluminium bodies, characterised in that it comprises an aluminium alloy reinforcement framework (4) that rigidly connects said tubular inserts (2) to each other.
2) Group of inserts (1 ) according to claim 1 , characterised in that said reinforcement framework (4) comprises two mutually parallel aluminium connection bars (5), that connect the corresponding ends of each pair of tubular inserts (2) adjacent to each other.
3) Group of inserts (1 ) according to claim 2, characterised in that each of said connection bars (5) has a section in square millimetres comprised between 4% and 6% of the distance in millimetres between the centres of the two openings (3) of each of said tubular inserts (2).
4) Group of inserts (1 ) according to any one of claims 2 or 3, characterised in that the distance between said two connection bars (5) is greater than the length of said tubular inserts (2) and in that each end of each of said tubular inserts (2) is connected to the corresponding connection bar (5) through an extension (6) coaxial to said tubular insert (2).
5) Group of inserts (1 ) according to claim 4, characterised in that said distance between said two connection bars (5) is comprised between 1 10% and 120% of the distance between the centres of said two openings (3).
6) Group of inserts (1 ) according to any one of the preceding claims, characterised in that it comprises at least four of said tubular inserts (2).
7) Group of inserts (1 ) according to any one of the preceding claims, characterised in that the distance between the centres of the two openings (3) of each of said tubular inserts (2) is comprised between 340 mm and 610 mm.
8) Method for producing modular bimetallic radiators comprising the following operations:
- providing one mould (7) for aluminium die-casting comprising a plurality of imprints (8) identical and adjacent to each other and extended according to respective directions parallel to each other; - arranging a steel tubular insert (2) in each of said imprints (8);
- injecting aluminium into said mould (7) to embed each of said tubular inserts (2) so as to obtain a corresponding bimetallic radiator module;
characterised in that it comprises the operation of rigidly connecting said tubular inserts (2) to each other through an aluminium alloy reinforcement framework (4) before arranging said tubular inserts (2) in said mould (7), said mould (7) being provided with a plurality of connection channels (9) configured to receive said reinforcement framework (4).
9) Method according to claim 8, characterised in that said connection channels (9) are configured so that said reinforcement framework (4) is embedded in said aluminium during said aluminium injection operation.
10) Method according to any one of claims 8 or 9, characterised in that said tubular inserts (2) and said reinforcement framework (4) belong to a group of inserts (1 ) according to any one of claims 1 to 7.
PCT/IB2016/050502 2015-02-03 2016-02-01 Group of inserts for use in the production of modular bimetallic radiators WO2016125071A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVI20150032 2015-02-03
ITVI2015A000032 2015-02-03

Publications (1)

Publication Number Publication Date
WO2016125071A1 true WO2016125071A1 (en) 2016-08-11

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3439732A (en) * 1964-11-28 1969-04-22 Mario Andreoli Die-casting process using magnetic core to position preform
GB1379511A (en) * 1970-10-01 1975-01-02 Serck Industries Ltd Manufacture of tubular heat exchangers
CN1810414A (en) * 2006-02-27 2006-08-02 陈新华 Pressure casting die for finned convection radiator with composite magnesium alloy-copper column
JP2013231557A (en) * 2012-04-28 2013-11-14 Mdi Corp Heat exchanger for exhaust air

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3439732A (en) * 1964-11-28 1969-04-22 Mario Andreoli Die-casting process using magnetic core to position preform
GB1379511A (en) * 1970-10-01 1975-01-02 Serck Industries Ltd Manufacture of tubular heat exchangers
CN1810414A (en) * 2006-02-27 2006-08-02 陈新华 Pressure casting die for finned convection radiator with composite magnesium alloy-copper column
JP2013231557A (en) * 2012-04-28 2013-11-14 Mdi Corp Heat exchanger for exhaust air

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 201377, Derwent World Patents Index; AN 2013-U93323 *

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