DE1247815B - Process for the hot production of a valve housing with a valve seat transverse to the direction of flow - Google Patents
Process for the hot production of a valve housing with a valve seat transverse to the direction of flowInfo
- Publication number
- DE1247815B DE1247815B DEST17719A DEST017719A DE1247815B DE 1247815 B DE1247815 B DE 1247815B DE ST17719 A DEST17719 A DE ST17719A DE ST017719 A DEST017719 A DE ST017719A DE 1247815 B DE1247815 B DE 1247815B
- Authority
- DE
- Germany
- Prior art keywords
- flanges
- shell
- housing
- flange
- shells
- 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
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/20—Making machine elements valve parts
- B21K1/24—Making machine elements valve parts valve bodies; valve seats
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Forging (AREA)
Description
DEUTSCHESGERMAN
PATENTAMTPATENT OFFICE
Int. Cl.:Int. Cl .:
B 21kB 21k
Deutsche KL: 49i-16 German KL: 49i-16
Nummer: 1247 815Number: 1247 815
Aktenzeichen: St 177191 b/49 iFile number: St 177191 b / 49 i
Anmeldetag: 21. April 1961 Filing date: April 21, 1961
Auslegetag: 17. August 1967Opened on: August 17, 1967
Die Erfindung betrifft ein Verfahren zur Warmherstellung eines Ventilgehäuses mit quer zur Durchflußrichtung liegendem Ventilsitz, mit Deckelflansch und Anschlußflanschen, ausgehend von zwei aus einem Knüppelabschnitt im Gesenk getrennt geschmiedeten, mit Halbflanschteilen versehenen Halbschalen, die einen Längsschnitt des Ventilgehäuses in Durchlaufrichtung darstellen und die miteinander nach dem Entgraten verschweißt werden.The invention relates to a method for the hot production of a valve housing with a direction transverse to the direction of flow lying valve seat, with cover flange and connection flanges, starting from two a billet section separately forged in the die, provided with half-flange parts, which represent a longitudinal section of the valve housing in the flow direction and which together be welded after deburring.
Es ist schon vorgeschlagen worden, Qehäusehalbschalen mit Halbflanschteilen und einer Hälfte des Deckelfansches im Gesenk zu schmieden (französische Patentschrift 898 534). Beim Schmieden der Halbflansche bilden sich letztere durch steigende Verformung des Ausgangswerkstückes. Die steigende Verformung setzt entsprechend tiefe Gesenkeinschnitte und zusätzliche Hilfsmittel voraus, damit das Material die tiefsten Stellen der Einschnitte ausfüllt. Tritt dieses Ausfüllen der die Flansche formenden Einschnitte nicht ein, entsteht ein fehlerhaftes Erzeugnis, das vielfach nicht mehr brauchbar ist. Es wurde daher in der Schmiedetechnik vorgezogen, auf angeschmiedete Flansche zu verzichten. Die Flansche wurden als Flanschringe gesondert hergestellt und nachträglich an die Enden der Gehäusestutzen an- oder aufgeschweißt.It has already been proposed that the housing half-shells with half-flange parts and one half of the Forging cover flange in the die (French patent specification 898 534). When forging the Half-flanges are formed by the increasing deformation of the initial workpiece. The rising Deformation requires correspondingly deep die cuts and additional aids to ensure that Material fills the deepest parts of the incisions. This filling occurs when the flanges are formed If you do not make cuts, a defective product is created, which in many cases is no longer usable. It It was therefore preferred in forging technology to dispense with forged flanges. The flanges were manufactured separately as flange rings and subsequently attached to the ends of the housing spigots. or welded on.
Einen anderen Weg zur Verwendung von Gehäusehalbschalen mit geschmiedeten Halbflanschteilen hat man in der Schmiedetechnik dann durch die gleichzeitige Fertigung von Zwillingshalbschalen beschritten (deutsche Patentschrift 917 830). Die Stutzen der Halbschalen blieben allerdings flanschlos, nur der Deckelflansch, wurde in Gesenkmitte an der Verbindungsstelle der Zwillingshalbschale gebildet, dort, wo durch Auseinandersägen die Trennung der Zwillingsschale erfolgen mußte.Has another way of using housing half-shells with forged half-flange parts one then proceeded in forging technology through the simultaneous production of twin half-shells (German patent specification 917 830). The nozzles of the half-shells, however, remained flangeless, only the one Lid flange, was formed in the middle of the die at the junction of the twin half-shell, where the twin shell had to be separated by sawing it apart.
. Bei einem von der eingangs genannten Gattung der Ventilkörperfertigung abweichenden vorbekannten
Vorschlag (deutsche Auslegeschrift 1 068 072) wurden für bis zum Ventilsitz reichende Stutzen jeweils
Halbschalen in Zwillingsform geschmiedet, und es wurde in der Trennebene dieser Zwillingsschale der
Stutzenflansch in doppelter Stärke vorgesehen. Dieser doppelstarke Halbflanschteil lag. wieder in der Mitte
des Gesenkes quer zum Knüppelabschnitt. Der Deckelflansch wurde als gesondert hergestellter Körper
stirnseitig der Ventilsitzkammer angeschweißt. Diese Fertigung ist bei der Vielteiligkeit und der in
verschiedenen Ebenen liegenden Schweißnähte aufwendig. . Bei einem weiteren gattungsmäßig anderen Herstellungsverfahren
von Ventilen (schweizerische Pa-Verfahren zur Warmherstellung eines
Ventilgehäuses mit quer zur Durchflußrichtung
liegendem Ventilsitz. In a previously known proposal (German Auslegeschrift 1 068 072) that deviates from the type of valve body production mentioned at the beginning, half-shells were forged in twin form for nozzles reaching up to the valve seat, and the nozzle flange was provided in double thickness in the parting plane of this twin shell. This double-strength half-flange part was lying. again in the middle of the die across the billet section. The cover flange was welded to the front of the valve seat chamber as a separately manufactured body. This production is complex due to the many parts and the weld seams lying in different planes. . In a further generic manufacturing process for valves (Swiss Pa process for the hot production of a
Valve housing with transverse to the direction of flow
lying valve seat
Anmelder:Applicant:
Stahl-Armaturen Persia G. m. b. H., K. G.,Steel fittings Persia G. m. B. H., K. G.,
Belecke/MöhneBelecke / Möhne
Als Erfinder benannt:Named as inventor:
Walter Siepmann, Belecke/MöhneWalter Siepmann, Belecke / Möhne
tentschrift 155 205) sollte aus einem massiven Schmiedestück durch maschinelle Bearbeitung und autogenes Schneiden ein im wesentlichen einteiliger Gehäusekörper herausgearbeitet werden. Hierbei wurde eine Gehäuseform, gewählt, bei der die dem Ventilsitz gegenüberliegende Stirnseite der Ventilsitzkammer bis auf die Einführöffnung der Spindel geschlossen sein konnte. Ein Deckelflansch war nicht vorgesehen. Dieses ungeteilte Gehäuse ist als Gesenkschmiedestück nicht herstellbar.tentschrift 155 205) should be made from a solid forging by machining and autogenous cutting a substantially one-piece housing body can be worked out. Here a housing shape was chosen in which the end face of the valve seat chamber opposite the valve seat could be closed except for the insertion opening of the spindle. A cover flange was not intended. This undivided housing cannot be produced as a drop forging.
Bei einem weiteren, ungeteilten Ventilgehäuse mit Fischbauchform werden im Gießverfahren die Stutzenflansche und der Deckelfansch mitgefertigt (britische Patentschrift 509 520). Die Ventilsitzkammer erstreckt sich über den gesamten Längenbereich der Stutzen und erhält hierbei eine strömungstechnisch ungünstige Form. Dieses einteilige Gehäuse kann nicht geschmiedet werden.In another, undivided valve body with a fish belly shape, the nozzle flanges are cast using the casting process and the lid flange was also manufactured (British patent specification 509 520). The valve seat chamber extends extends over the entire length range of the nozzle and receives a fluidic unfavorable shape. This one-piece housing cannot be forged.
Der Erfindung liegt die Aufgabe zugrunde, durch Anwendung der leitenden Verformung, die auf dem Gebiet der Erfindung schon bekannt war und wegen ihrer Vorteile stets zur Diskussion stand, das Herstellungsverfahren für die genannte Ventilgattung zu verbessern, insbesondere zu vereinfachen und wirtschaftlicher zu gestalten. Es kommt dabei darauf an, daß die Flansche an den Gehäusestutzen und für den Deckel zuverlässig, vollständig ausgeschmiedet werden und daß ein Faserverlauf im Schmiedestück erzielt wird, der beste Festigkeitseigenschaften gewährt. Die Halbschale soll ein einzeln gefertigtes Schmiedestück bleiben, um auch die Gesenkformen klein halten zu können.The invention has for its object, by applying the conductive deformation that is on the The field of the invention was already known and was always under discussion because of its advantages, the manufacturing process to improve for the valve type mentioned, in particular to simplify and more economical to design. It is important that the flanges on the housing stub and for the Lid are reliably, completely forged and that a fiber flow is achieved in the forging is granted the best strength properties. The half-shell is said to be a individually manufactured forging stay in order to be able to keep the die shapes small.
Das Verfahren nach der Erfindung ist dadurch gekennzeichnet, daß zur Formung der Halbschalen nur mittels der an sich bekannten breitenden Verformung Halbschalen gesenkgeschmiedet werden, deren Anschlußflansche als kegelmantelartig nach außen er-The method according to the invention is characterized in that for shaping the half-shells only half-shells are drop-forged by means of the known widening deformation, their connecting flanges outwardly as a cone-shaped
709 637/1E5709 637 / 1E5
Claims (1)
einzusetzende, im Knüppelabschnitt vorgesehene Die beiden geschmiedeten Halbschalen werden in Werkstoffmenge und die Steuerung des Materialflus- einer Schweißmaschine durch Abbrennstumpf schweises von der Mitte her zu den äußersten Enden der ßung miteinander verbunden. Die Stumpfschweißnaht Anschlußflansche hin führt neben einer einfacheren 5° verläuft entsprechend der aus F i g. 4 ersichtlichen, Gesenkform auch zur Verringerung des Gesenkver- strichpunktierten Linie. Der beim Stumpfschweißen schleißes. entstehende, außen umlaufende Schweißwulst wirdIn the method according to the invention are in a die, parallel to the housing longitudinal axis in a first stage during forging, inserted. This half-shells at forging temperature by using the billet section brought in itself is shaped in the die by known broad deformation in the shape of a cone shell-like a few blows of the forging hammer by deformation in the shape of the half-shell that widens outwardly. The die has of course forged one of the dimensions of FIG. The broadening Verfor intermediate shape of the shell corresponding training. mung is known in the art. With this cone-like inclined socket half ring- 15 this deformation fills the engraving of the flanges are in a favorable position to the material dies in the direction of the ridge Burr off. Broadening deformation that is used In the course of this broadening deformation, the channel ends of the half-shells can initially be conical, extending into the outermost ends of the flanges. So that this material flow is also formed in the shell-like inclined half-flanges 3 α , the cover flange of which is effective, outer surfaces are already kept plane-parallel in this first Ver. This driving stage with correspondingly large conical shell-like forged flange halves valve seat chamber diameter a to the central axis of 3 α are provided after deburring the shells under chamber directed inner flange as a cover flange of the forging machine in a post-forming process. The advantage of the manufacturing process goes into the Fig. 3 visible position pressed flat. The circumferential wall 5 of the valve chamber attachment is the shape of the shell with an inner cover flange without an outer flange connected to the outer area of the half-ring flanges inclined in the manner of a cone and a cone of the downwardly directed cover half-flange 6, because this extends from the center of the housing. sen. At the same time, the forging type enables particularly long tongue-like half-rings 4, flanges to go to the outermost areas of the connection position, an undisturbed flow of material and thus forming the valve seat carrier. The length of the tongue allows the fiber course of the material to be achieved, which itself can be pore-free over the inner confluence area of the thin-walled area and reliably fills the die towards the lower channel and in the side areas. In the case of the countervailing strength that takes place later, significantly exceed it. Appropriately shaping the conical connecting flanges, the 35 carries the tongue length two to four times the fiber orientation is not impaired. The two tongue thickness. This enlargement of the valve chamber process steps complement each other in the sense of the essay, particularly in the case of the forging in housings forged in broader thicknesses, particularly in the case of the low wall support, to a considerable deformation. The choice of the different training stiffening of the entire valve housing. In addition, manure of the cover flange with respect to the connection 4 ° is a favorable flow direction for the material flanges has the consequence that when using a billet section smaller cross-section and achieved when performing the broadening deformation. On the underside of the inwardly directed greater length of the cover flanges 6 in the cover flange, round slugs or cams 7 push the excess amount of material more quickly, which are provided for receiving bores for, albeit a curved line, to the connection 45 the cover screws to serve. The holes are flanged towards being displaced. The smaller, at most not carried out into the interior of the housing,
to be used, provided in the billet section The two forged half-shells are connected to one another in terms of material quantity and the control of the material flow of a welding machine by flash butt welding from the center to the extreme ends of the opening. The butt weld connection flanges lead in addition to a simpler 5 ° runs corresponding to that of FIG. 4 visible, die shape also to reduce the die-dashed line. The wear and tear when butt welding. resulting, outside circumferential weld bead is
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEST17719A DE1247815B (en) | 1961-04-21 | 1961-04-21 | Process for the hot production of a valve housing with a valve seat transverse to the direction of flow |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEST17719A DE1247815B (en) | 1961-04-21 | 1961-04-21 | Process for the hot production of a valve housing with a valve seat transverse to the direction of flow |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1247815B true DE1247815B (en) | 1967-08-17 |
Family
ID=7457574
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEST17719A Pending DE1247815B (en) | 1961-04-21 | 1961-04-21 | Process for the hot production of a valve housing with a valve seat transverse to the direction of flow |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1247815B (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH155205A (en) * | 1930-01-04 | 1932-06-15 | Frederick Gray Tom | Method of manufacturing a valve for steam, liquids and the like. |
GB509520A (en) * | 1938-04-22 | 1939-07-18 | Klein Schanzlin & Becker Ag | Improvements in valve casings |
FR898534A (en) * | 1942-07-03 | 1945-04-25 | Method of manufacturing valve boxes from a metal magnifying glass | |
DE834629C (en) * | 1950-02-14 | 1952-03-20 | Stahl Armaturen G M B H | Drop forged valve body and process for its manufacture |
DE917830C (en) * | 1950-04-22 | 1954-09-13 | Siepmann Werke Ag | Process for the manufacture of valve housings from drop forged shells |
DE1068072B (en) * | 1959-10-29 |
-
1961
- 1961-04-21 DE DEST17719A patent/DE1247815B/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1068072B (en) * | 1959-10-29 | |||
CH155205A (en) * | 1930-01-04 | 1932-06-15 | Frederick Gray Tom | Method of manufacturing a valve for steam, liquids and the like. |
GB509520A (en) * | 1938-04-22 | 1939-07-18 | Klein Schanzlin & Becker Ag | Improvements in valve casings |
FR898534A (en) * | 1942-07-03 | 1945-04-25 | Method of manufacturing valve boxes from a metal magnifying glass | |
DE834629C (en) * | 1950-02-14 | 1952-03-20 | Stahl Armaturen G M B H | Drop forged valve body and process for its manufacture |
DE917830C (en) * | 1950-04-22 | 1954-09-13 | Siepmann Werke Ag | Process for the manufacture of valve housings from drop forged shells |
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