DE4332744A1 - Method for casting shaped parts - Google Patents

Method for casting shaped parts

Info

Publication number
DE4332744A1
DE4332744A1 DE19934332744 DE4332744A DE4332744A1 DE 4332744 A1 DE4332744 A1 DE 4332744A1 DE 19934332744 DE19934332744 DE 19934332744 DE 4332744 A DE4332744 A DE 4332744A DE 4332744 A1 DE4332744 A1 DE 4332744A1
Authority
DE
Germany
Prior art keywords
metal
inserts
metal alloy
hardness
molded
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Withdrawn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
DE19934332744
Other languages
German (de)
Inventor
Harald Holdschick
Reinhard Volkmann
Paul Bauer
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.)
Friatec Rheinhuette & Co GmbH
Original Assignee
Friatec Rheinhuette & Co GmbH
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 Friatec Rheinhuette & Co GmbH filed Critical Friatec Rheinhuette & Co GmbH
Priority to DE19934332744 priority Critical patent/DE4332744A1/en
Publication of DE4332744A1 publication Critical patent/DE4332744A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00Casting in, on, or around objects which form part of the product
    • B22D19/02Casting in, on, or around objects which form part of the product for making reinforced articles

Abstract

The invention relates to a method for the production of shaped parts, a metal or a metal alloy being introduced into a prepared casting mould. The intention is to develop the method in such a way that, while permitting simple production, it also permits effective armouring by means of the shaped part. The proposal is that inserts of different hardness and/or toughness should be locked in place in the mould cavity and that the metal or metal alloy should then be poured into the said cavity, the inserts being encapsulated by the metal to give a composite material of maximum resistance to violent destruction. <IMAGE>

Description

The invention relates to a method for casting molded parts according to the features specified in the preamble of claim 1.

Casting has long made it possible to produce molded parts with any Au to produce outer contours. Casting molds are used, in which the liquid metal or the liquid metal alloy is introduced, whereby after the molded part is available for cooling and removing the casting mold. Furthermore, molded parts made of ceramic and corresponding manufacturing processes well known to the expert. Ceramic has one in comparison to metal significantly higher hardness, but the shape or even requires a sluggish processing a considerable effort.

Armor plates are also known, which are used to protect against the risk of break-ins Deteten devices such as coin storage, safes, locking systems and the like are used. If unauthorized persons use force to gain access want to create, so it is often tried, the locking devices, locks  or the like to drill. Basically, there is the possibility as Armor plates made of ceramic or a hard metal, but it is due to the above relationships, this requires a considerable amount of production and maintenance processing effort required.

Proceeding from this, the object of the invention is a method to show which, with simple manufacture of the molded part, an effective patch with this. The molding should be easy in the ge Desired shapes can be manufactured, with subsequent processing operations are avoided or at least no special complex Processing machines are required.

This problem is solved according to the in the characterizing part of Features specified claim.

The method proposed according to the invention can be carried out without any particular difficulty speed using known casting technologies, whereby the molded part manufactured according to the invention on account of the cast-in inserts, which security elements are, provide excellent armor protection accomplishes. The securing elements have one in comparison with the cast one Metal or metal alloy a much higher hardness. The hardness of the Securing elements lie in a particularly expedient manner in the area between 7 and 9.5 mohs. According to the invention, a construction part is created in which chem the securing elements and the cast metal alloy or the ge cast metal an extremely wear-resistant and extremely hard composite form fabric. In a particularly expedient manner, the same molded part Deposits of different hardness and toughness are provided, the respective The hardness and toughness of these different deposits is greater than that of cast metal or the cast metal alloy. The deposits or Securing elements are preferably made of ceramic and / or hard metal. The Fuse elements are shaped in accordance with the purpose arranged and locked to each other, so that any kind of demolition tool, such e.g. B. drills or cutting discs must meet such deposits and the Stop drilling or cutting or hinder it significantly.  

Developments and special embodiment of the invention are in the Subclaims specified.

The invention is described below with reference to the drawing Exemplary embodiments explained in more detail. Show it:

Fig. 1 is a view of such a composite armor plate,

Fig. 2 shows a section through the armor plate along section line II of FIG. 1,

Fig. 3 is a view of another armor plate and

Fig. 4 shows a section along section line IV of FIG. 3.

Fig. 1 shows the view of an angled plate, which is used as armor protection. Here deposits 4 , 6 are indicated by a black background. The inserts 4 , 6 are securing elements and are located inside the plate and are not visible from the outside. Apart from the inserts 4 , 6 , the angled plate 2 consists of metal or a metal alloy. The inserts 4 indicated by round contours are made of ceramic, while the inserts 6 with irregular outer contours consist of hard metal, which has a much higher hardness than the metal of the rest of the plate. The angled plate 2 also contains various Ausneh measures 8 , 10th The recesses 8 , 10 are located in the areas of the plate which consist of the metal alloy mentioned. The recesses 8 , 10 can be produced by subsequent processing such as drilling or milling the cast plate 2 or by appropriate design of the mold, which is used to produce the angled plate 2 . The molded part according to the invention thus contains, on the one hand, the areas secured by means of the inserts and, on the other hand, those areas which, if appropriate, also enable subsequent processing. Such areas can extend like the above-mentioned recesses 8 , 10 through the entire wall thickness of the molded part or from the outside accessible outside or side surfaces of the molded part, which are designed to adapt or connect to other components. According to the invention, an extremely wear-resistant and extremely hard composite material is created, which has a very high resistance to violent destruction.

The arrangement of the inserts 4 , 6 inside the plate 2 can be clearly seen from the section according to FIG. 2. The plate 2 has a flat lower part 12 and an angled upper part 14 . It should be expressly stated that the contour of the angled plate 2 or generally of the molded part according to the invention can be predetermined according to the requirements, it ultimately being crucial that the inserts 4 , 6 with a much greater but different hardness inside the molded part and toughness than the metal of the molded part itself are arranged.

The molded part is produced according to the invention in the following process steps:

  • - Molding the model.
  • - Locking of the inserts 4 , 6 mentioned in the mold cavity, in particular by sticking in with a binder or stanchions.
  • - Pour the metal alloy into the mold, making a construction part arises in which securing elements and metal alloy unite extremely wear-resistant and extremely hard composite material form.

FIGS. 3 and 4 show a further embodiment of the molding produced according to the erfindungsge MAESSEN method which is again formed as a plate 2. From Fig. 4, the curved shape of the plate 2 can be seen, wel che also has a larger wall thickness in the lower part than in the upper part. The ceramic inserts 4 have a double T-shaped contour and are arranged offset to one another. The material thickness 16 of the inserts 4 serving as securing elements is expediently set to be smaller than the thickness 18 of the curved plate 2 . The deposits 4 , accordingly, also apply to the other deposits 6 , are therefore completely embedded in the metal alloy of the plate 2 and enclosed by this. The association is unsolvable.

By explaining two gefer according to the inventive method The molded parts are not subject to any restriction of the invention. Even if the plate-like shaping of the molded parts requires little manufacturing effort required, any shape can still be specified and be only as an example on hollow bodies with round, rectangular or any Au Outer contours referenced. It is essential to create a composite material with the highest resistance to violent destruction, being cast in Deposits have a significantly greater hardness and / or toughness than that Metal or the metal alloy in which the inserts mentioned are embedded are. In the context of the invention, iron is used as metal or metal alloy or iron alloys provided. Furthermore, it has proven to be particularly useful proven when securing elements with different hardness and toughness, such as, in particular, ceramic or hard metal.

Reference list

2 plate
4 , 6 insert
8 , 10 recess
12 lower part of 2
14 angled part of 2
16 thickness of 4
18 thickness of 2

Claims (9)

1. A process for the production of molded parts, a metal or a metal alloy being introduced into a prepared casting mold, characterized in that inserts ( 4 , 6 ) of different hardness and / or toughness are locked in the mold cavity of the casting mold and that subsequently in the mold cavity the metal or the metal alloy is cast in, the inserts ( 4 , 6 ) being cast around the metal or the metal alloy to form a composite material.
2. The method according to claim 1, characterized in that the inserts ( 4 , 6 ) consist of ceramic and / or as hard metal.
3. The method according to claim 1 or 2, characterized in that the locking of the inserts ( 4 , 6 ) in the mold cavity is carried out by gluing by means of a bandage or by means of holders in the mold cavity.
4. The method according to any one of claims 1 to 3, characterized in that at least part of the inserts ( 4 , 6 ) has a much greater hardness than the metal or the metal alloy in which they are cast.
5. The method according to any one of claims 1 to 4, characterized in that the hardness of the deposits ( 4 , 6 ) is in the range between 7 and 9.5 Mohs.
6. The method according to any one of claims 1 to 5, characterized in that at least a part of the inserts ( 4 , 6 ) has a significantly higher toughness than the metal or the metal alloy in which they are cast.
7. The method according to any one of claims 1 to 6, characterized in that the inserts ( 4 , 6 ) consist of at least two different materials which, compared to the metal or the metal alloy, in particular iron or iron alloy, have a substantially greater hardness and / or To show toughness.
8. molded part, which in a method according to any one of claims 1 to 7 is manufactured, characterized by its use as armor protection.
9. molded part, in particular according to claim 8, characterized in that it has areas, for example recesses ( 8 , 10 ), which are free of the deposits ( 4 , 6 ) and / or which allow subsequent processing.
DE19934332744 1993-09-25 1993-09-25 Method for casting shaped parts Withdrawn DE4332744A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19934332744 DE4332744A1 (en) 1993-09-25 1993-09-25 Method for casting shaped parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19934332744 DE4332744A1 (en) 1993-09-25 1993-09-25 Method for casting shaped parts

Publications (1)

Publication Number Publication Date
DE4332744A1 true DE4332744A1 (en) 1995-03-30

Family

ID=6498662

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19934332744 Withdrawn DE4332744A1 (en) 1993-09-25 1993-09-25 Method for casting shaped parts

Country Status (1)

Country Link
DE (1) DE4332744A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3270093A1 (en) * 2016-07-15 2018-01-17 Craco GmbH Compound armour and method for the preparation of same
EP3368855A4 (en) * 2015-10-30 2019-05-29 Tactical Design And Testing Services OY Manufacturing method for ballistic armor and ballistic armor

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1508939B1 (en) * 1966-10-20 1969-09-04 Rautenbach Gmbh Geb Casting mold for the manufacture of metal-Verbundkoerper
DE1508887A1 (en) * 1966-08-27 1970-03-05 Kloth Senking Ag With lumpy inclusion-provided casting
DE2533058A1 (en) * 1975-07-24 1977-02-10 Buderus Eisenwerk Cast iron components for motor vehicle brakes - contain steel rods which reinforce highly stressed zones
DE2365747B2 (en) * 1973-07-13 1977-10-20 cast schlagkoerper
DE2940989C1 (en) * 1978-03-08 1985-10-17 Fond Alcoa Mg S A Process for the production of a metal armor plate
DE3214552C2 (en) * 1981-04-27 1987-02-05 Kennametal Inc., Latrobe, Pa., Us
DE3630429A1 (en) * 1986-09-06 1988-03-10 Metallgesellschaft Ag Wall element for security structures
DE2723353C2 (en) * 1977-05-24 1989-08-03 Permanence Corp., Detroit, Mich., Us

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1508887A1 (en) * 1966-08-27 1970-03-05 Kloth Senking Ag With lumpy inclusion-provided casting
DE1508939B1 (en) * 1966-10-20 1969-09-04 Rautenbach Gmbh Geb Casting mold for the manufacture of metal-Verbundkoerper
DE2365747B2 (en) * 1973-07-13 1977-10-20 cast schlagkoerper
DE2533058A1 (en) * 1975-07-24 1977-02-10 Buderus Eisenwerk Cast iron components for motor vehicle brakes - contain steel rods which reinforce highly stressed zones
DE2723353C2 (en) * 1977-05-24 1989-08-03 Permanence Corp., Detroit, Mich., Us
DE2940989C1 (en) * 1978-03-08 1985-10-17 Fond Alcoa Mg S A Process for the production of a metal armor plate
DE3214552C2 (en) * 1981-04-27 1987-02-05 Kennametal Inc., Latrobe, Pa., Us
DE3630429A1 (en) * 1986-09-06 1988-03-10 Metallgesellschaft Ag Wall element for security structures

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DE-B.: BRUNNHUBER: "GIESSEREI LEXIKON", Ausg. 1988, S. 446-450, 506, 670, Fachverlag Schiele & Schön GmbH *
DE-B.: Dr.A.A.Appen u. Prof. Dr.A.Petzold: Hitze- beständige Korrosions-, Wärme- u. Verschleiß- schutzschichten", Dt. Verlag f. Grundstoffindus- trie, Leipzig, 1983, S.119 u. 130, S.142/143 *
DE-B: "ABC TECHNIK UND NATURWISSENSCHAFT", Bd.1, 1970, S.406, 489, Verlag Harri Deutsch Ffm/Zürich *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3368855A4 (en) * 2015-10-30 2019-05-29 Tactical Design And Testing Services OY Manufacturing method for ballistic armor and ballistic armor
EP3270093A1 (en) * 2016-07-15 2018-01-17 Craco GmbH Compound armour and method for the preparation of same

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