EP3687712A2 - Protective element for a feeder sleeve - Google Patents

Protective element for a feeder sleeve

Info

Publication number
EP3687712A2
EP3687712A2 EP18862361.5A EP18862361A EP3687712A2 EP 3687712 A2 EP3687712 A2 EP 3687712A2 EP 18862361 A EP18862361 A EP 18862361A EP 3687712 A2 EP3687712 A2 EP 3687712A2
Authority
EP
European Patent Office
Prior art keywords
protective element
sleeve
mini riser
riser sleeve
wall
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.)
Pending
Application number
EP18862361.5A
Other languages
German (de)
French (fr)
Other versions
EP3687712A4 (en
Inventor
Mehmet UZER
Nedim ACILKAN
Murat IPEK
Haydar KAHRAMAN
Guven YAVUZ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cukurova Kimya Endustrisi AS
Original Assignee
Cukurova Kimya Endustrisi AS
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 Cukurova Kimya Endustrisi AS filed Critical Cukurova Kimya Endustrisi AS
Publication of EP3687712A2 publication Critical patent/EP3687712A2/en
Publication of EP3687712A4 publication Critical patent/EP3687712A4/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
    • B22C9/088—Feeder heads

Definitions

  • the present invention relates to a protective element suitable for use with a feeder sleeve product.
  • moulds also known as feeder sleeves
  • Said moulds include sand and various chemicals.
  • the feeder sleeves are exothermic feeding auxiliary materials which are produced at various shapes and sizes by a preforming method, wherein the feeder sleeves are produced from a pre-prepared chemical mixture according to the desired exothermal degree.
  • Patent document no. WO2017007433A1 discloses an exemplary mini riser system which comprises mini riser fixers.
  • the feeding system disclosed in said document comprises a feeder sleeve, a neck piece functioning as a fixer, and a conical piece. With the effect of force applied during the moulding process, said neck piece moves at the vertical axis so as to be driven to the cavity provided within the feeder sleeve.
  • the patent document no. WO2017007433A1 does not mention about a characteristic of the neck piece and the conical piece that enables them to resist to the applied force.
  • said document does not comprise a further protective element between the feeder sleeve and the surface to which the sleeve is fixed in order to provide to protect the feeder sleeve.
  • a protective element suitable for use with at least one mini riser sleeve which comprises a linear cavity through which a fluid material can be passed for the feeding process, at least one outer wall, at least one base, and at least one opening located at the base and providing the cavity to communicate with the outer environment.
  • Said protective element comprises at least one bottom wall suitable for receiving the base of the mini riser sleeve and being made of a more flexible material than the mini riser sleeve; at least one side wall suitable for receiving the outer wall of the mini riser sleeve and being made of a more flexible material than the mini riser sleeve; at least one aperture located at said bottom wall and allowing a fluid passage between the opening and the outer environment.
  • the protective element according to the invention moulding rate and quality of the feeder sleeve are increased by applying it directly on the mould model at the foundries in which high-pressure moulding lines are utilised; and due to the flexible structure of the protective element which is made of a more flexible material than the mini riser sleeve, the mini riser sleeve is prevent from being damaged by the compression effect applied thereon during the moulding process.
  • An object of the present invention is to develop a protective element which provides to reduce the load applied to the feeder sleeve during a moulding process.
  • Another object of the present invention is to develop a protective element which provides to enhance endurance of the feeding element at the position in which it is fixed.
  • Figure 1 is a side sectional view of a feeder sleeve which is used together with the protective element according to the present invention.
  • Figure 2 is a side sectional view of the protective element according to the present invention.
  • Figure 3 is a perspective view of the protective element according to the present invention.
  • Figure 4 is a side sectional view of the protective element in use with a feeder sleeve.
  • mini riser systems In order to provide a quick and quality casting production at the high-pressure automatic moulding lines utilised for mass production of the castings, it is appropriate to use mini riser systems in certain areas on the mould model.
  • a mini riser system which fully functions as a feeder and is able to resist to the mechanical effects on the automatic moulding line.
  • a protective element which prevents the brittle feeder sleeve at the mini riser system from being damaged by the load to which it is subjected during the moulding process.
  • the protective element (E) is suitable for use with at least one mini riser sleeve (1) an exemplary view of which is illustrated in Figure 1 and which comprises a linear cavity (1 a) through which a fluid material can be passed for the feeding process, at least one outer wall (1 b), at least one base (1c), and at least one opening (1 d) located at the base (1 c) and providing the cavity (1a) to communicate with the outer environment.
  • Said protective element (E) comprises at least one bottom wall (3) suitable for receiving the base (1 c) of the mini riser sleeve (1) and being made of a more flexible material (e.g.
  • the ceramic fibre than the mini riser sleeve (1)
  • at least one side wall (4) suitable for receiving the outer wall (1 b) of the mini riser sleeve (1) and being made of a more flexible material (e.g. the ceramic fibre) than the mini riser sleeve (1)
  • at least one aperture (3a) located at said bottom wall (3) and allowing a fluid passage between the opening (1 d) and the outer environment.
  • the mini riser sleeve (1) is placed inside said protective element (E). Then, the mini riser sleeve (1) and the protective element (E) are positioned together inside the mould. During compressing the mould, a compression force is created on the mini riser sleeve (1) and the protective element (E).
  • a compression force is created on the mini riser sleeve (1) and the protective element (E).
  • said compression force is absorbed by said protective element (E) by means of forming a friction force between the outer wall (1 b) of the feeder sleeve and the side wall (4) of the protective element (E).
  • the mini riser sleeve (1) is prevented from being damaged by said compression force.
  • the metal in the fluid form during usage of the mini riser sleeve (1) is enabled to be filled to the cavity (1 a) through said opening (1 d) and be removed again when necessary.
  • porosity of said protective element (E) is higher than that of said feeder sleeve (1).
  • the protective element (E) is able to stretch under the compression force.
  • said protective element (E) is produced by vacuum forming production method. Therefore, the production process is able to be performed in a simple and practical way.
  • the protective element (E) according to the invention, moulding rate and quality of the feeder sleeve (1) are increased by applying it directly on the mould model at the foundries in which high-pressure moulding lines are utilised; and due to the flexible structure of the protective element (E) which is made of a more flexible material than the mini riser sleeve (1), the mini riser sleeve (1) is prevent from being damaged by the compression effect applied thereon during the moulding process.

Abstract

With the present invention, there is developed a protective element (E) suitable for use with at least one mini riser sleeve (1) which comprises a linear cavity (1a) through which a fluid material can be passed for the feeding process, at least one outer wall (1b), at least one base (1c), and at least one opening (1d) located at the base (1c) and providing the cavity (1a) to communicate with the outer environment. Said protective element (E) comprises at least one bottom wall (3) suitable for receiving the base (1c) of the mini riser sleeve (1) and being made of a more flexible material than the mini riser sleeve (1); at least one side wall (4) suitable for receiving the outer wall (1b) of the mini riser sleeve (1) and being made of a more flexible material than the mini riser sleeve (1); at least one aperture (3a) located at said bottom wall (3) and allowing a fluid passage between the opening (1d) and the outer environment.

Description

PROTECTIVE ELEMENT FOR A FEEDER SLEEVE Technical Field
The present invention relates to a protective element suitable for use with a feeder sleeve product. Prior Art
Nowadays, moulds, also known as feeder sleeves, are utilised in casting industry to perform casting process on metals. Said moulds include sand and various chemicals. The feeder sleeves are exothermic feeding auxiliary materials which are produced at various shapes and sizes by a preforming method, wherein the feeder sleeves are produced from a pre-prepared chemical mixture according to the desired exothermal degree.
With the developing technology, innovations are made for the casting production method, as well. Thanks to the high-pressure automatic moulding lines that are suited to serial production, quality castings are obtained in a quicker way. Consumables which are used at automatic moulding lines should inevitably keep up with this development. Therefore, rendering the use of a feeder at automatic moulding lines practical affects the production rate positively. A mini riser system, both functioning fully as a feeder and being capable of resisting to mechanical effects at the automatic moulding lines, improves the casting production rate and quality. The feeder sleeve having a brittle structure is prevented from being damaged by the loads applied at high-pressure automatic moulding lines, thanks to the mini riser fixers. Said fixers enable to fix the sand at a certain area inside the mould.
Patent document no. WO2017007433A1 discloses an exemplary mini riser system which comprises mini riser fixers. The feeding system disclosed in said document comprises a feeder sleeve, a neck piece functioning as a fixer, and a conical piece. With the effect of force applied during the moulding process, said neck piece moves at the vertical axis so as to be driven to the cavity provided within the feeder sleeve. However, the patent document no. WO2017007433A1 does not mention about a characteristic of the neck piece and the conical piece that enables them to resist to the applied force. Moreover, said document does not comprise a further protective element between the feeder sleeve and the surface to which the sleeve is fixed in order to provide to protect the feeder sleeve.
Brief Description of Invention
With the present invention, there is developed a protective element suitable for use with at least one mini riser sleeve which comprises a linear cavity through which a fluid material can be passed for the feeding process, at least one outer wall, at least one base, and at least one opening located at the base and providing the cavity to communicate with the outer environment. Said protective element comprises at least one bottom wall suitable for receiving the base of the mini riser sleeve and being made of a more flexible material than the mini riser sleeve; at least one side wall suitable for receiving the outer wall of the mini riser sleeve and being made of a more flexible material than the mini riser sleeve; at least one aperture located at said bottom wall and allowing a fluid passage between the opening and the outer environment.
Thanks to the protective element according to the invention, moulding rate and quality of the feeder sleeve are increased by applying it directly on the mould model at the foundries in which high-pressure moulding lines are utilised; and due to the flexible structure of the protective element which is made of a more flexible material than the mini riser sleeve, the mini riser sleeve is prevent from being damaged by the compression effect applied thereon during the moulding process.
Object of Invention
An object of the present invention is to develop a protective element which provides to reduce the load applied to the feeder sleeve during a moulding process.
Another object of the present invention is to develop a protective element which provides to enhance endurance of the feeding element at the position in which it is fixed.
Description of Drawings Exemplary embodiments of the protective element for a feeder sleeve according to the present invention are illustrated in the drawings, in which:
Figure 1 ; is a side sectional view of a feeder sleeve which is used together with the protective element according to the present invention.
Figure 2; is a side sectional view of the protective element according to the present invention.
Figure 3; is a perspective view of the protective element according to the present invention.
Figure 4; is a side sectional view of the protective element in use with a feeder sleeve.
All the parts illustrated in figures are individually assigned a reference numeral and the corresponding terms of these numbers are listed below:
Protective element (E)
Feeder sleeve (1)
Cavity (1 a)
Outer wall (1 b)
Base (1c)
Opening (1 d)
Bottom wall (3)
Aperture (3a)
Side wall (4)
Description of Invention
In order to provide a quick and quality casting production at the high-pressure automatic moulding lines utilised for mass production of the castings, it is appropriate to use mini riser systems in certain areas on the mould model. For the moulding process, on the purpose of enhancing the casting production rate and quality, it is important to use a mini riser system which fully functions as a feeder and is able to resist to the mechanical effects on the automatic moulding line. Within this context, with the present invention there is developed a protective element which prevents the brittle feeder sleeve at the mini riser system from being damaged by the load to which it is subjected during the moulding process. The protective element (E) according to the present invention, exemplary view of which is illustrated in Figures 2-4, is suitable for use with at least one mini riser sleeve (1) an exemplary view of which is illustrated in Figure 1 and which comprises a linear cavity (1 a) through which a fluid material can be passed for the feeding process, at least one outer wall (1 b), at least one base (1c), and at least one opening (1 d) located at the base (1 c) and providing the cavity (1a) to communicate with the outer environment. Said protective element (E) comprises at least one bottom wall (3) suitable for receiving the base (1 c) of the mini riser sleeve (1) and being made of a more flexible material (e.g. the ceramic fibre) than the mini riser sleeve (1); at least one side wall (4) suitable for receiving the outer wall (1 b) of the mini riser sleeve (1) and being made of a more flexible material (e.g. the ceramic fibre) than the mini riser sleeve (1); at least one aperture (3a) located at said bottom wall (3) and allowing a fluid passage between the opening (1 d) and the outer environment.
In an exemplary embodiment of the invention, the mini riser sleeve (1) is placed inside said protective element (E). Then, the mini riser sleeve (1) and the protective element (E) are positioned together inside the mould. During compressing the mould, a compression force is created on the mini riser sleeve (1) and the protective element (E). Here, since the bottom wall (3) and the side wall (4) of the protective element (E) are made of a more flexible material than the mini riser sleeve (1), said compression force is absorbed by said protective element (E) by means of forming a friction force between the outer wall (1 b) of the feeder sleeve and the side wall (4) of the protective element (E). By this way, the mini riser sleeve (1) is prevented from being damaged by said compression force. Here, by means of said aperture (3a), the metal in the fluid form during usage of the mini riser sleeve (1) is enabled to be filled to the cavity (1 a) through said opening (1 d) and be removed again when necessary.
In a preferred embodiment of the invention, porosity of said protective element (E) is higher than that of said feeder sleeve (1). Thus, the protective element (E) is able to stretch under the compression force. In a further preferred embodiment of the invention, said protective element (E) is produced by vacuum forming production method. Therefore, the production process is able to be performed in a simple and practical way.
Thanks to the protective element (E) according to the invention, moulding rate and quality of the feeder sleeve (1) are increased by applying it directly on the mould model at the foundries in which high-pressure moulding lines are utilised; and due to the flexible structure of the protective element (E) which is made of a more flexible material than the mini riser sleeve (1), the mini riser sleeve (1) is prevent from being damaged by the compression effect applied thereon during the moulding process.

Claims

1. A protective element (E) suitable for use with at least one mini riser sleeve (1) which comprises a linear cavity (1a) through which a fluid material can be passed for the feeding process, at least one outer wall (1 b), at least one base (1c), and at least one opening (1 d) located at the base (1c) and providing the cavity (1 a) to communicate with the outer environment, characterized by comprising;
• at least one bottom wall (3) suitable for receiving the base (1 c) of the mini riser sleeve (1) and being made of a more flexible material than the mini riser sleeve (1);
• at least one side wall (4) suitable for receiving the outer wall (1 b) of the mini riser sleeve (1) and being made of a more flexible material than the mini riser sleeve
(1);
• at least one aperture (3a) located at said bottom wall (3) and allowing a fluid passage between the opening (1d) and the outer environment.
2. A protective element (E) according to Claim 1 , characterized in that said bottom wall (3) is made of ceramic fibre.
3. A protective element (E) according to Claim 1 , characterized in that said side wall (4) is made of ceramic fibre.
4. A protective element (E) according to Claim 1 , characterized in that the protective element (E) is made of a material porosity of which is higher than that of said feeder sleeve (1).
EP18862361.5A 2017-09-28 2018-09-26 Protective element for a feeder sleeve Pending EP3687712A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2017/14494A TR201714494A2 (en) 2017-09-28 2017-09-28 Feeder jacket protection element.
PCT/TR2018/050526 WO2019066760A2 (en) 2017-09-28 2018-09-26 Protective element for a feeder sleeve

Publications (2)

Publication Number Publication Date
EP3687712A2 true EP3687712A2 (en) 2020-08-05
EP3687712A4 EP3687712A4 (en) 2021-01-20

Family

ID=65902512

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18862361.5A Pending EP3687712A4 (en) 2017-09-28 2018-09-26 Protective element for a feeder sleeve

Country Status (3)

Country Link
EP (1) EP3687712A4 (en)
TR (1) TR201714494A2 (en)
WO (1) WO2019066760A2 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2260285B (en) * 1991-10-03 1994-10-12 Masamitsu Miki Riser sleeve with breaker core
GB0325134D0 (en) * 2003-10-28 2003-12-03 Foseco Int Improved feeder element for metal casting
GB0611430D0 (en) * 2006-06-09 2006-07-19 Foseco Int Improved feeder element for metal casting
CL2010001048A1 (en) * 2010-09-30 2011-01-14 Casas Del Valle Barros Hnos Ltda A composite layer sleeve used as a supplementary metal feeder in casting processes, comprises two concentric layers, an exothermic inner layer and an insulating outer layer, the upper part of which is a hollow cylinder and the lower part corresponds to the base of the sleeve .

Also Published As

Publication number Publication date
EP3687712A4 (en) 2021-01-20
WO2019066760A3 (en) 2019-05-31
WO2019066760A2 (en) 2019-04-04
TR201714494A2 (en) 2019-04-22

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Inventor name: ACILKAN, NEDIM

Inventor name: IPEK, MURAT

Inventor name: YAVUZ, GUVEN

Inventor name: UZER, MEHMET

Inventor name: KAHRAMAN, HAYDAR

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