DE2658859A1 - Valve body lining by melting-out process - with wax lining for sand mould that is melted out for lining to be cast in - Google Patents

Valve body lining by melting-out process - with wax lining for sand mould that is melted out for lining to be cast in

Info

Publication number
DE2658859A1
DE2658859A1 DE19762658859 DE2658859A DE2658859A1 DE 2658859 A1 DE2658859 A1 DE 2658859A1 DE 19762658859 DE19762658859 DE 19762658859 DE 2658859 A DE2658859 A DE 2658859A DE 2658859 A1 DE2658859 A1 DE 2658859A1
Authority
DE
Germany
Prior art keywords
lining
wax
housing
valve body
cast
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
DE19762658859
Other languages
German (de)
Inventor
Hans Bender
Josef Swoboda
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.)
GULDE REGELARMATUREN KG
Original Assignee
GULDE REGELARMATUREN KG
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 GULDE REGELARMATUREN KG filed Critical GULDE REGELARMATUREN KG
Priority to DE19762658859 priority Critical patent/DE2658859A1/en
Publication of DE2658859A1 publication Critical patent/DE2658859A1/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0272—Construction of housing; Use of materials therefor of lift valves valves provided with a lining
    • 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
    • B22D19/08—Casting in, on, or around objects which form part of the product for building-up linings or coverings, e.g. of anti-frictional metal

Abstract

Valve body with lining is produced by coating with wax or other medium, forming a mould inside with moulding sand and melting out the wax before filling the gap with lining material. Pref. the body is coated with wax to the required thickness with core supports of the lining material and the free space is filled with moulding sand and comprssed. The body is placed in a furnace for melting out the wax and then the lining material e.g. bronze is cast in, pref. in a preheated mould. Method produces a body of non-ferrous material with a strength well above that of such material.

Description

Auskleidung von Armaturengehäusen nach dem AusschmelzverfahrenLining of valve housings according to the casting process

Die Erfindung betrifft Armaturengehäuse, die in ihrer Innenseite eine Auskleidung aus einem Werkstoff mit erhöhter Beständigkeit erhalten.The invention relates to valve housings that have a Lining obtained from a material with increased resistance.

Es ist bekannt, Armaturen in ihrer mediumberührten Innenseite mit Auskleidungen zu versehen. Beispielsweise sind Farbe, Kunststoffe, Glas, Email, Gummierungen und metallische Werkstoffe üblich.It is known to have fittings in their inside that is in contact with the medium To provide linings. For example, paint, plastics, glass, enamel, Rubber linings and metallic materials are common.

Der Erfindung lag die Aufgabe zugrunde ein Armaturengehäuse aus nichtmetallischem Werkstoff,beispielsweise Bronze, herzustellen das hohe Bruchsicherheit aufweist, wofür Zähigkeitswerte notwendig sind, die weit über denen des Bronzewerkstoffes liegen.The invention was based on the object of a fitting housing made of non-metallic To produce a material, for example bronze, which has a high level of resistance to breakage, for which toughness values are necessary that are far above those of the bronze material lie.

Die Aufgabe wurde erfindungsgemäß dadurch gelöst, daß der tragende Mantel aus einem zähen Stahlwerkstoff besteht und die mediumberührte Innenseite aus dem beständigen Bronzewerkstoff.The object was achieved according to the invention in that the load-bearing The jacket consists of a tough steel material and the inside in contact with the medium made of the durable bronze material.

Die Schwierigkeit besteht darin eine homogene, gut aufliegende Auskleidungsschicht in den komplizierten Innenraum des Gehäuses einzubringen.The difficulty lies in a homogeneous, well-lying lining layer to be introduced into the complicated interior of the housing.

Zu diesem Zweck wird die Innenfläche zunächst mit einer Schicht aus Wachs belegt und zwar in der Dicke der gewünschten Auskleidung. Innerhalb der Wachsschicht werden Kernstutzen angebracht, die aus dem gleichen Werkstoff sind wie die spätere Auskleidung. Anschließend wird der noch freie Innenraum mit Formsand gefüllt; der in geeigneter Weise verdichtet wird.For this purpose, the inner surface is first made with a layer Wax covered in the thickness of the desired lining. Inside the wax layer core nozzles are attached that are made of the same material as the later one Lining. Then the still free interior is filled with molding sand; the is compressed in a suitable manner.

Das so gefüllte Gehäuse wird im Brennofen erhitzt,wobei das Wachs ausschmilzt und der Kern gebrannt wird. Nach diesem Vorgang wird der Auskleidungswerkstoff, beispielsweise Bronze, in den Zwischenraum zwischen Gehäuse und Kern gegossen; vorzugsweise in die noch vorgewärmte Form, damit Gehäuse und Form gemeinsam schrumpfen können.The case filled in this way is heated in the furnace, with the wax melts out and the core is burned. After this process, the lining material, e.g. bronze, in the space between the housing and Cast core; preferably in the pre-warmed shape, so that the housing and shape can shrink together.

Den Gegenstand der erfindung zeigt Bild 1: Schnittdarstellung eines Armaturengehäuses, beispielsweise eine Regelarmatur Das Gehäuse 1 aus zähem Werkstoff ist an seiner Innenseite mit Auskleidung 2 belegt. Zur Stabilisierung sind an den Flanschen 3, 4 Verdickungen 5, 6; desgleichen an der Sitzpartie 7. Im Gehäuse 1 können Fenster 8 sein, wodurch die Auskleidung 2 eine zusätzliche Verklammerung erhält. Auch an der Außenkante des Gehäuses 1 sind ähnliche Fenster 9 möglich. Diese Fenster 8, 9 erleichtern auch das Ausgießen.The subject of the invention is shown in Figure 1: Sectional view of a Valve housing, for example a control valve The housing 1 made of tough material is covered with lining 2 on its inside. To stabilize the Flanges 3, 4 thickenings 5, 6; likewise on the seat area 7. In the housing 1 can be windows 8, whereby the lining 2 an additional clamping receives. Similar windows 9 are also possible on the outer edge of the housing 1. These Windows 8, 9 also make pouring easier.

L e e r s e i t eL e r s e i t e

Claims (3)

Ansprüche Armaturengehäuse mit Auskleidung dadurch gekennzeichnet, daß in einem Armaturengehäuse durch Beschichten und Ausschmelzen von Wachs oder anderen Hilfsmitteln und mit Hilfe von Formsand eine Form hergestellt ist, die mit Auskleidungswerkstoff gefüllt wird und daß die so hergestellte Füllung als Auskleidung im Gehäuse verbleibt.Claims valve housing with lining characterized by that in a valve body by coating and melting wax or other aids and with the help of molding sand a shape is made with Lining material is filled and that the filling produced in this way as a lining remains in the housing. 2. Armaturengehäuse mit Auskleidung nach Anspruch 1 dadurch gekennzeichnet, daß das Beschichten mit einem unter Temperatur verdampfenden oder vergasenden Hilfsmittel hergestellt wird.2. Fitting housing with lining according to claim 1, characterized in that that the coating with an aid that evaporates or gasifies under temperature will be produced. 3. Armaturengehäuse mit Auskleidung nach Anspruch 1 und 2 dadurch gekennzeichnet, daß im Gehäuse Fenster sind durch die der Auskleidungswerkstoff hindurchtreten und sich verklammern kann.3. Fitting housing with lining according to claim 1 and 2 thereby characterized in that there are windows in the housing through which the lining material is made can step through and cling.
DE19762658859 1976-12-24 1976-12-24 Valve body lining by melting-out process - with wax lining for sand mould that is melted out for lining to be cast in Pending DE2658859A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19762658859 DE2658859A1 (en) 1976-12-24 1976-12-24 Valve body lining by melting-out process - with wax lining for sand mould that is melted out for lining to be cast in

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762658859 DE2658859A1 (en) 1976-12-24 1976-12-24 Valve body lining by melting-out process - with wax lining for sand mould that is melted out for lining to be cast in

Publications (1)

Publication Number Publication Date
DE2658859A1 true DE2658859A1 (en) 1978-06-29

Family

ID=5996642

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19762658859 Pending DE2658859A1 (en) 1976-12-24 1976-12-24 Valve body lining by melting-out process - with wax lining for sand mould that is melted out for lining to be cast in

Country Status (1)

Country Link
DE (1) DE2658859A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3509666A1 (en) * 1985-03-18 1986-09-18 Ideal-Standard Gmbh, 5300 Bonn SANITARY SHUT-OFF OR MIXING VALVE
WO2017196513A1 (en) * 2016-05-10 2017-11-16 Fisher Controls International Llc Method for manufacturing a valve body having one or more corrosion-resistant internal surfaces

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3509666A1 (en) * 1985-03-18 1986-09-18 Ideal-Standard Gmbh, 5300 Bonn SANITARY SHUT-OFF OR MIXING VALVE
WO2017196513A1 (en) * 2016-05-10 2017-11-16 Fisher Controls International Llc Method for manufacturing a valve body having one or more corrosion-resistant internal surfaces
US10220440B2 (en) 2016-05-10 2019-03-05 Fisher Controls International Llc Method for manufacturing a valve body having one or more corrosion-resistant internal surfaces
RU2745701C2 (en) * 2016-05-10 2021-03-30 Фишер Контролз Интернешнел Ллс Valve body production method with one or more corrosion-resistant interior surfaces
US11229947B2 (en) 2016-05-10 2022-01-25 Fisher Controls International Llc Method for manufacturing a valve body having one or more corrosion-resistant internal surfaces

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