CA2226551A1 - Sealing and guiding device for the injection piston of a hot chamber pump for corrosive alloys - Google Patents

Sealing and guiding device for the injection piston of a hot chamber pump for corrosive alloys

Info

Publication number
CA2226551A1
CA2226551A1 CA002226551A CA2226551A CA2226551A1 CA 2226551 A1 CA2226551 A1 CA 2226551A1 CA 002226551 A CA002226551 A CA 002226551A CA 2226551 A CA2226551 A CA 2226551A CA 2226551 A1 CA2226551 A1 CA 2226551A1
Authority
CA
Canada
Prior art keywords
piston
chamber
bush
sealing
guiding device
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
Application number
CA002226551A
Other languages
French (fr)
Other versions
CA2226551C (en
Inventor
Flavio Mancini
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.)
Individual
Original Assignee
Individual
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
Priority claimed from IT95MI001605A external-priority patent/IT1277333B1/en
Application filed by Individual filed Critical Individual
Publication of CA2226551A1 publication Critical patent/CA2226551A1/en
Application granted granted Critical
Publication of CA2226551C publication Critical patent/CA2226551C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • B22D17/02—Hot chamber machines, i.e. with heated press chamber in which metal is melted
    • B22D17/04—Plunger machines

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

A sealing and guiding device for the injection piston of a hot chamber pump for corrosive alloys made up of a body in which a chamber and an injection cavity therebelow are formed, wherein the piston slides with a vertical reciprocating motion, includes a bush, having an outer diameter smaller than said chamber, interposed between centering members housed in the chamber and made coaxial with the chamber and with the piston by a pair of opposite surfaces of revolution formed on said centering members, the upper surface and the relevant centering member performing a pressure-tight sealing. The outer lateral surface of the bush is in communication with the injection cavity whereas the upper side of the bush is in communication with the crucible and immersed therein at a depth, measured from the lowest level reachable by the molten alloy, which is greater than the maximum travel of the piston. The inner surface of the bush is a surface of revolution with diameter just larger than the piston.
CA002226551A 1995-07-25 1996-05-24 Sealing and guiding device for the injection piston of a hot chamber pump for corrosive alloys Expired - Fee Related CA2226551C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITMI95A001605 1995-07-25
IT95MI001605A IT1277333B1 (en) 1995-07-25 1995-07-25 DEVICE FOR SEALING AND GUIDE FOR THE INJECTOR PISTON OF A HOT CHAMBER PUMP FOR CORROSIVE ALLOYS
PCT/IT1996/000108 WO1997004902A1 (en) 1995-07-25 1996-05-24 Sealing and guiding device for the injection piston of a hot chamber pump for corrosive alloys

Publications (2)

Publication Number Publication Date
CA2226551A1 true CA2226551A1 (en) 1997-02-13
CA2226551C CA2226551C (en) 2007-07-17

Family

ID=38288384

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002226551A Expired - Fee Related CA2226551C (en) 1995-07-25 1996-05-24 Sealing and guiding device for the injection piston of a hot chamber pump for corrosive alloys

Country Status (1)

Country Link
CA (1) CA2226551C (en)

Also Published As

Publication number Publication date
CA2226551C (en) 2007-07-17

Similar Documents

Publication Publication Date Title
EP0916869A3 (en) Hydraulic chain tensioner with molded plastic body
JPS6453759A (en) Metal casting device and method opposing gravity
ES2007879A6 (en) Hydraulic pump with integrated sump and accumulator.
EP0428394A3 (en) Container with a suspension grip and method of manufacturing the same
CA2379409A1 (en) Plunger for syringe
AU575951B2 (en) Insulin preparation with thickening agent and surfactant
IT1214860B (en) WINES AND PLASTIC PLUG FOR SPARKLING PROCEDURE TO PERFORM THE PROCEDURE.
CA2226551A1 (en) Sealing and guiding device for the injection piston of a hot chamber pump for corrosive alloys
CA2206726A1 (en) Automatic downhole pump assembly and method for use of the same
AU5910096A (en) Sealing and guiding device for the injection piston of a hot chamber pump for corrosive alloys
JPS56148453A (en) Nozzle for continuous casting
WO2003092932A3 (en) Injection molding method and apparatus with base mounted feeder
DE50202133D1 (en) METHOD FOR PRODUCING AN ELEMENT WITH A HERMETICALLY CONTAINED AIRLESS SPACE
JPS57192643A (en) Hydraulic bumper
JPS592341Y2 (en) Free piston of gas-filled shock absorber
JPS57121410A (en) Processing of thin wall cylinder
GB2207197B (en) Water pump impeller.
JPS6453073A (en) Hydraulic pump
RU13336U1 (en) DEVICE FOR RADIAL DEFORMATION OF HOLLOW CYLINDER PREPARATIONS
SU1488547A1 (en) Piston for positive-displacement hydraulic machine
RU2014947C1 (en) Casting plant
JPS6479494A (en) Method of connecting soft metallic pipe
KR200268128Y1 (en) Level switch
SU1341597A1 (en) Source of seismic signals
SU818713A1 (en) Die for producing articles from hard-deformation materials

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed