EP2436460A2 - Form zur herstellung von kugeln mit integrierten wellen für ventile mittels zentrifugalguss - Google Patents

Form zur herstellung von kugeln mit integrierten wellen für ventile mittels zentrifugalguss Download PDF

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Publication number
EP2436460A2
EP2436460A2 EP10769358A EP10769358A EP2436460A2 EP 2436460 A2 EP2436460 A2 EP 2436460A2 EP 10769358 A EP10769358 A EP 10769358A EP 10769358 A EP10769358 A EP 10769358A EP 2436460 A2 EP2436460 A2 EP 2436460A2
Authority
EP
European Patent Office
Prior art keywords
mould
bodies
shafts
ball
valves
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.)
Withdrawn
Application number
EP10769358A
Other languages
English (en)
French (fr)
Other versions
EP2436460A4 (de
Inventor
Iñigo GOÑI USABIAGA
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.)
Baikor Worldwide SL
Original Assignee
Baikor Worldwide SL
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 Baikor Worldwide SL filed Critical Baikor Worldwide SL
Publication of EP2436460A2 publication Critical patent/EP2436460A2/de
Publication of EP2436460A4 publication Critical patent/EP2436460A4/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D13/00—Centrifugal casting; Casting by using centrifugal force
    • B22D13/10—Accessories for centrifugal casting apparatus, e.g. moulds, linings therefor, means for feeding molten metal, cleansing moulds, removing castings
    • B22D13/101—Moulds
    • 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
    • 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
    • B22D19/04—Casting in, on, or around objects which form part of the product for joining parts
    • 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
    • B22D19/04—Casting in, on, or around objects which form part of the product for joining parts
    • B22D19/045—Casting in, on, or around objects which form part of the product for joining parts for joining tubes

Definitions

  • the present invention relates to making balls for the ball valves used in fluid ducts, proposing a mould of particular features for making said balls by means of centrifugal moulding.
  • the movable element of the ball valves which are arranged in fluid ducts consists of a metal ball provided with a transverse hole incorporating one or two protruding radial shafts projecting from the ball perpendicular to said hole.
  • Said ball valve metal balls are conventionally made by moulding in a stationary mould, which has the drawback that the ball manufacturing material contracts as it solidifies, leaving defective areas on the outside of the ball due to lack of material, such that for making the spherical surface of the ball uniform adding a filling material supplement in the defective areas is necessary, involving a second operation with a loss in time and increase in cost.
  • centrifugal moulding consisting of using a mould arranged in a rotary mount and associated with an operating device is known in making cylindrical tubes, such that by rotating the mould while at the same time pouring the moulding material into the mould, the moulded material adapts perfectly to the wall of the mould, solidifying in correspondence with said wall without the solidification contraction causing defects on the surface of the moulded part.
  • a mould designed for making ball valve balls by means of the centrifugal moulding system is proposed, said mould being developed with constructive and functional features making it particularly advantageous for said function.
  • This mould object of the invention comprises two complementary half-bodies correspondingly coupled to each other, one of the half-bodies being arranged on a support defining a rotary mount of said half-body, having a coupling with a rotary operation driving device, while the other half-body has an inlet for introducing the material to be moulded into the mould.
  • the two component half-bodies of the mould form, inside, a central cavity with the shape of the balls to be made, said cavity being prolonged with two cylindrical ducts extending in opposite directions along the mould.
  • a mould is thereby provided which allows making the balls for the ball valves by centrifugal moulding by means of its rotary operation, the ball bodies being able to be formed with the corresponding shaft or shafts already integrated.
  • the shaft or shafts which are to be integrated in the ball can be obtained in the mould together with the ball which is moulded by means of the same ball forming material, but prefabricated shafts can also be incorporated, placing them in the longitudinal ducts of the mould, such that when moulding the ball said shafts are integrated with the ball forming material.
  • sealing accessory parts combined with the mould are provided, which parts can be placed at the beginning of the longitudinal ducts of the mould for flush-closing said ducts, when necessary, of the central cavity for forming the ball, balls integrated with one or with two shafts, as well as balls alone, without any shaft, thus being able to be moulded, sealing the longitudinal ducts of the mould or leaving them open, as required in each case.
  • Said mould object of the invention therefore has certainly advantageous features, acquiring its own identity and preferred character for the intended ball moulding function.
  • the object of the invention relates to a mould designed for making the balls forming the movable element of the ball valves which are arranged in fluid ducts, with an embodiment of said mould provided for centrifugal moulding.
  • the proposed mould comprises a correspondingly complementary lower half-body (1) and upper half-body (2), the lower half-body (1) being placed in a rotary mount, for example on a circular rolling support (3) or any other means allowing a rotational movement actuated by a rotary operating mechanism (4).
  • Each of the half-bodies (1 and 2) forming, inside, a central cavity (5) formed according to the shape of one half of the balls to be made, starting from said central cavity (5) in opposite directions there being two semi-cylindrical channels (6) extending in the longitudinal direction of the corresponding half-body (1 or 2).
  • One of the half-bodies preferably the upper half-body (2), has in connection with the cavity (5) of the inner part an opening (7), through which the liquid material designed to be moulded to form therewith the balls to be made can be introduced.
  • the moulding is done by introducing through the opening (7) the material designed for forming the balls, while at the same time the mould is rotated, whereby the moulding material adapts to the wall of the central receptacle defined by the complementary cavities (5), solidifying in correspondence with said wall, such that the outer surface of the moulded part has the shape defined by the aforementioned receptacle, without deformations due to contraction of the material as it solidifies.
  • the channels (6) have holes (8), whereby a sealing accessory part (10) for sealing the cylindrical duct formed by the corresponding channels (5) can be fastened with screws (9).
  • parts By means of sealing the two cylindrical ducts defined by the channels (6) of the half-bodies (1 and 2) with respective sealing accessory parts (10), parts can thus be moulded with the shape of only the ball bodies, whereas by sealing one of the cylindrical ducts and leaving the other one open, as in Figure 4 , parts can be moulded with the shape of the ball bodies and a radial shaft projecting therefrom, whereas by leaving the two cylindrical ducts open, as in Figure 3 , parts can be defined with the shape of the ball bodies and two opposite shafts projecting therefrom.
  • one or two shafts can be formed by means of the same ball body forming material, leaving one or both cylindrical ducts inside the mould open as previously indicated, but also, as can be seen in Figure 5 , a prefabricated shaft (11) can be placed in the cylindrical duct in which a shaft is to be obtained, which shaft becomes integrally attached with said ball body of the prefabricated shaft (11) as the ball body forming material is moulded, a smaller amount of material to be moulded therefore being needed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Taps Or Cocks (AREA)
  • Moulding By Coating Moulds (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
EP10769358.2A 2009-04-27 2010-04-27 Form zur herstellung von kugeln mit integrierten wellen für ventile mittels zentrifugalguss Withdrawn EP2436460A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200901086A ES2347406B1 (es) 2009-04-27 2009-04-27 Molde para la fabricacion de bolas con eje integral para valvulas mediante moldeo centrifugado.
PCT/ES2010/000183 WO2010125211A2 (es) 2009-04-27 2010-04-27 Molde para la fabricación de bolas con eje integral para válvulas mediante moldeo centrifugado

Publications (2)

Publication Number Publication Date
EP2436460A2 true EP2436460A2 (de) 2012-04-04
EP2436460A4 EP2436460A4 (de) 2017-01-25

Family

ID=42939699

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10769358.2A Withdrawn EP2436460A4 (de) 2009-04-27 2010-04-27 Form zur herstellung von kugeln mit integrierten wellen für ventile mittels zentrifugalguss

Country Status (3)

Country Link
EP (1) EP2436460A4 (de)
ES (1) ES2347406B1 (de)
WO (1) WO2010125211A2 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN120421479B (zh) * 2024-07-19 2025-09-16 安徽精智威兰流体科技有限公司 一种球阀球体的自动离心铸造装置
CN118492298B (zh) * 2024-07-19 2024-09-10 安徽精智威兰流体科技有限公司 一种三偏心蝶阀阀体的离心铸造模具及工艺

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57112965A (en) * 1980-12-29 1982-07-14 Daido Steel Co Ltd Vertical centrifugal casting method
ES273447Y (es) * 1983-07-12 1984-06-16 Gil Alonso Jose E Noyo para la fabricacion, por fundicion, de piezas para valvulas esfericas
JPS6178547A (ja) * 1984-09-25 1986-04-22 Daido Steel Co Ltd 竪型遠心鋳造用鋳型
JPS6376746A (ja) * 1986-09-18 1988-04-07 Daido Steel Co Ltd 竪型遠心鋳造用中子
ATE145252T1 (de) * 1990-05-09 1996-11-15 Lanxide Technology Co Ltd Dünne mmc's und deren herstellung
US20080012176A1 (en) * 2006-07-13 2008-01-17 Husky Injection Molding Systems Ltd. Overmolding of molded articles

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2010125211A2 *

Also Published As

Publication number Publication date
WO2010125211A3 (es) 2012-02-16
EP2436460A4 (de) 2017-01-25
ES2347406A1 (es) 2010-10-28
ES2347406B1 (es) 2011-08-02
WO2010125211A2 (es) 2010-11-04

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