DE3033725A1 - Fibre-reinforced aluminium(alloy) composite prodn. - by hot pressing or rolling assembly of fibres interposed between aluminium layers and brazing alloy - Google Patents
Fibre-reinforced aluminium(alloy) composite prodn. - by hot pressing or rolling assembly of fibres interposed between aluminium layers and brazing alloyInfo
- Publication number
- DE3033725A1 DE3033725A1 DE19803033725 DE3033725A DE3033725A1 DE 3033725 A1 DE3033725 A1 DE 3033725A1 DE 19803033725 DE19803033725 DE 19803033725 DE 3033725 A DE3033725 A DE 3033725A DE 3033725 A1 DE3033725 A1 DE 3033725A1
- Authority
- DE
- Germany
- Prior art keywords
- alloy
- metal layers
- solder
- fibers
- layers
- 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
Links
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 21
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 20
- 239000000956 alloy Substances 0.000 title claims abstract description 20
- 239000002131 composite material Substances 0.000 title claims abstract description 19
- 238000005219 brazing Methods 0.000 title claims abstract description 10
- 238000005096 rolling process Methods 0.000 title claims description 19
- 239000004411 aluminium Substances 0.000 title abstract 4
- 238000007731 hot pressing Methods 0.000 title description 2
- 238000000034 method Methods 0.000 claims abstract description 21
- 229910000789 Aluminium-silicon alloy Inorganic materials 0.000 claims abstract description 4
- 229910052710 silicon Inorganic materials 0.000 claims abstract 2
- 239000000835 fiber Substances 0.000 claims description 27
- 229910052751 metal Inorganic materials 0.000 claims description 24
- 239000002184 metal Substances 0.000 claims description 24
- 229910000679 solder Inorganic materials 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 239000011651 chromium Substances 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 239000011733 molybdenum Substances 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 239000010936 titanium Substances 0.000 claims description 2
- 229910052720 vanadium Inorganic materials 0.000 claims description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims 2
- 229910052749 magnesium Inorganic materials 0.000 claims 2
- 239000011777 magnesium Substances 0.000 claims 2
- 229910052748 manganese Inorganic materials 0.000 claims 2
- 239000011572 manganese Substances 0.000 claims 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 229910052726 zirconium Inorganic materials 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 10
- 238000001816 cooling Methods 0.000 abstract description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 abstract description 2
- 239000002318 adhesion promoter Substances 0.000 abstract description 2
- 229910052796 boron Inorganic materials 0.000 abstract description 2
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 abstract 2
- 229910010271 silicon carbide Inorganic materials 0.000 abstract 2
- 239000011208 reinforced composite material Substances 0.000 abstract 1
- 238000009736 wetting Methods 0.000 abstract 1
- 239000011162 core material Substances 0.000 description 4
- 239000003733 fiber-reinforced composite Substances 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- 238000007750 plasma spraying Methods 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/20—Making alloys containing metallic or non-metallic fibres or filaments by subjecting to pressure and heat an assembly comprising at least one metal layer or sheet and one layer of fibres or filaments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/02—Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
- C22C49/04—Light metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/021—Fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2311/00—Metals, their alloys or their compounds
- B32B2311/18—Titanium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2311/00—Metals, their alloys or their compounds
- B32B2311/22—Nickel or cobalt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2311/00—Metals, their alloys or their compounds
- B32B2311/24—Aluminium
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Metal Rolling (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
Description
Verfahren zur Herstellung eines faserverstärkten Verbund-Process for the production of a fiber-reinforced composite
werkstoffes Die Erfindung betrifft ein Verfahren zur Herstellung eines faserverstärkten Verbundwerkstoffes, bestehend aus mindestens zwei Metallagen aus Aluminium oder einer Aluminiumlegierung und zwischengelagerten Fasern. material The invention relates to a method for production a fiber-reinforced composite material, consisting of at least two metal layers made of aluminum or an aluminum alloy and interposed fibers.
Faserverstärkte dünne Bänder bzw. Bleche aus Aluminiumlegierungen mit bis zu 50 Vol-% Borfasern, die teils mit SiC beschichtet sind, werden bereits nach der Methode des Plasmaspritzens hergestellt. Hierbei wird die auf eine Trommel gewickelte Faserlage durch eine mittels Plasmaspritzen aufgetragene Aluminiumschicht auf der unter den Fasern liegenden Aluminiumfolie fixiert. Diese Spritzschichten sind sehr porös und müssen daher z.B. durch Warmwalzen oder Heißpressen nachverdichtet werden. Außerdem werden die Fasern durch die bis 20000C heißen Aluminiumtröpfchen im Plasmastrahl thermisch und mechanisch sehr stark beansprucht. Dies kann zu Schädigungen der Fasern und des Verbundes bereits im Herstellungsstadium führen. Die hergestellten Bänder haben zudem eine begrenzte endliche Länge, die durch den Trommelumfang vorgegeben ist. Außerdem arbeitet diese Methode diskontinuierlich und erfordert hohe Investitionskosten.Fiber-reinforced thin strips or sheets made of aluminum alloys with up to 50% by volume of boron fibers, some of which are coated with SiC, are already used manufactured using the plasma spraying method. This is done on a drum Wrapped fiber layer through an aluminum layer applied by means of plasma spraying fixed on the aluminum foil underneath the fibers. These spray coatings are very porous and therefore have to be re-compacted e.g. by hot rolling or hot pressing will. In addition, the fibers are absorbed by the aluminum droplets, which are hot up to 20000C Very high thermal and mechanical stress in the plasma jet. This can cause harm the fibers and the composite lead already in the manufacturing stage. The manufactured Belts also have a finite length that is limited by the circumference of the drum is. In addition, this method works discontinuously and requires high investment costs.
Allen bisherigen Verfahren zur Herstellung eines faserverstärkten Verbundwerkstoffes ist gemeinsam, daß in der Endstufe zur Erzeugung des festen Verbundes zwischen Metallagen und zwischengelagerten Fasern verhältnismäßig hohe Temperaturen angewendet werden. Beim Verlassen dieser Endstufe muß die verhältnismäßig weiche Schichtung erst gekühlt bzw. sehr vorsichtig behandelt werden, damit keine Auflösung des Verbundes erfolgt. Es ist bisher nicht miglich, unmittelbar nach dem Verbindungsverfahren bereits Verformungen oder Zuschnitte an dem Verbundwerkstoff vorzunehmen.All previous methods for producing a fiber-reinforced The composite material has in common that in the final stage to generate the solid composite Relatively high temperatures between metal layers and interposed fibers be applied. When leaving this output stage, the relatively soft one must Layering must first be cooled or handled very carefully so that there is no dissolution of the network takes place. So far it is not possible immediately after the connection procedure already undertake deformations or cuts on the composite material.
Der Erfindung lag daher die Aufgabe zugrunde, ein Verfahren zur Herstellung eines faserverstärkten Verbundwerkstoffes zu entwickeln, das die erwähnten Nachteile nicht aufweist, und mit verhältnismäßig einfachen Mitteln eine kontinuierliche Fertigung und Weiterverarbeitung des Verbundwerkstoffes ermöglicht.The invention was therefore based on the object of a method for production to develop a fiber-reinforced composite material that has the disadvantages mentioned does not have, and with relatively simple means a continuous production and further processing of the composite material is possible.
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß zwischen den Metallagen wenigstens eine Schicht aus einer Aluminiumlotlegierung vorhanden ist und die Schichtung aus Metallagen, zwischengelagerten Fasern und Aluminiumlotlegierung bei einer Temperatur gewalzt wird, die oberhalb der Schmelztemperatur des Lotes und unterhalb der Erweichungstemperatur der Metallagen liegt.According to the invention this object is achieved in that between the Metallagen at least one layer of an aluminum solder alloy is present and the layering of metal layers, interposed fibers and aluminum brazing alloy is rolled at a temperature which is above the melting temperature of the solder and is below the softening temperature of the metal layers.
Es ist vorteilhaft, die Walzung, d.h. den eigentlichen Verbindungsvorgang mit kalten Walzen vorzunehmen; bei dieser Verfahrensweise wird während der Herstellung des Verbundwerkstoffes bereits eine Abkühlung mit einer hohen Abkühlungsrate vorgenommen.It is advantageous to do the rolling, i.e. the actual joining process to be carried out with cold rollers; this procedure is used during manufacture the composite material has already been cooled at a high cooling rate.
Das vorgeheizte Ausgangsmaterial wird im ersten Teil des Walzvorganges gegeneinander gepreßt und verbunden, während gleichzeitig von den kalten Walzen aus eine Abkühlung über die Metallagen in die Verbindungszone erfolgt. Dieses bewirkt, daß das Fertigprodukt als Verbundwerkstoff unmittelbar nach dem Austritt aus dem Walzspalt weiter verarbeitet werden kann.The preheated raw material is used in the first part of the rolling process pressed against each other and connected while at the same time of the cold rolls from a cooling takes place over the metal layers in the connection zone. This causes the finished product as a composite material immediately after Exit from the roll gap can be processed further.
Es ist wichtig, daß diese Schicht des Verbundwerkstoffes vor dem Eintritt in den Walzspalt die vorschriftsmäßige Temperatur besitzt. Hierbei hat es sich als vorteilhaft erwiesen, das Vormaterial zur Herstellung des vorgeschichteten Verbundes durch Zusammenführung der Metallagen der Aluminiumlotlegierung und des Fasergewebes mittels Rollen vorzunehmen und das Vormatcrial zunäs hst apparat vorzuheizen. Unmittelbar vor der Walzung muß es dann, vorzugsweise in einem Durchlaufofen in Kontakt gebracht werden und auf die erforderliche Endtemperatur erhitzt werden.It is important that this layer of composite material before entry in the roll gap has the correct temperature. Here it has turned out to be proved to be advantageous, the primary material for the production of the pre-layered composite by bringing together the metal layers of the aluminum brazing alloy and the fiber fabric using rollers and preheating the Vormatcrial first apparatus. Direct before rolling, it must then be brought into contact, preferably in a continuous furnace and heated to the required final temperature.
Die Aufgabe der Aluminiumlotlegierung kann darin bestehen, als Oxidationsschutz und als Haftvermittler bei der Herstellung des Verbundwerkstoffes zu dienen. Es ist m(iglich, daß der Verbundwerkstoff ohne merkliche Verformung der Kernbleche hergestellt wird und der Verbund zwischen Metallagen und Fasern durch eine mit der Lotschicht getränkte Fasermatte gebildet wird.The task of the aluminum brazing alloy can be as protection against oxidation and to serve as an adhesion promoter in the manufacture of the composite material. It it is only possible that the composite material without any noticeable deformation of the core laminations is produced and the bond between metal layers and fibers by a with the Solder layer soaked fiber mat is formed.
Bei dieser IIcrstcllung wird mit einem nhwalzgrad zwischen 0,5 und 1, 5% gearbeitet.In this process, a rolling degree between 0.5 and 1.5% worked.
Zur Erzielung eines hochtemperaturbeständigen Verbunduerkstoffes aus Aluminium ist es jedoch vorteilhaft, den Faserwerkstoff durch plastische Verformung der Metallagen in diese einzubetten. Dabei muß ein Abwalzgrad zwischen 1> 5 und 10% angewendet werden.To achieve a high temperature resistant composite made of Aluminum, however, it is advantageous to the fiber material by plastic deformation of the metal layers to be embedded in them. A degree of rolling between 1> 5 and 10% will be applied.
Im folgenden wird die Erfindung anhand eines bevorzugten Ausführungsbeispieles näher erläutert. Dabei werden die Metallagen mit jeweils einer Lotplattierung versehen.In the following the invention is based on a preferred embodiment explained in more detail. The metal layers are each provided with a solder plating.
Zwei frisch gebeizte Bleche aus AlMn 1 mit einer Dicke von 1 mm werden einseitig lotplattiert mit 10% AlSi 10.Two freshly pickled sheets of AlMn 1 with a thickness of 1 mm are made Solder-plated on one side with 10% AlSi 10.
2 Die Abmessung der Bleche beträgt 70 x 190 mm . Zwischen diese Bleche wird ein gleichgroßes Stück Fasergewebe aus SiC-Fasern mit 140 lum Dicke gelegt. Die SiC-Fasern 1 2 werden- durch Aluminiumkettfäden der Abmessung 50 x 400 zum in etwa 2,8 mm Abstand zusammengehalten.2 The dimensions of the sheets are 70 x 190 mm. Between these sheets an equally sized piece of fiber fabric made of SiC fibers with a thickness of 140 lum. The SiC fibers 1 2 are - by aluminum warp threads of dimensions 50 x 400 to the in held together about 2.8 mm apart.
Die lotplattierten Bleche sind jeweils mit der Lotschicht zum Fasergewebe gerichtet. Vor dem Walzen werden die Stirnseiten der Proben miteinander verschweißt und die Schweißnaht leicht angespitzt, um ein leichtes Einlaufen der Probe in den Walzspalt zu ermöglichen. Das andere Ende der Proben wurde durch einen dünnen Aluminiumdraht zusammengehalten.The solder-plated sheets are each with the solder layer facing the fiber fabric directed. Before rolling, the end faces of the samples are welded together and the weld seam is slightly pointed to allow the sample to flow easily into the To enable roll gap. The other end of the specimen was threaded through a thin aluminum wire held together.
Bei bestimmten Aluminiumlegierungen ist es schwierig, die geeignete Löttemperatur einzustellen, da die Schmelztemperaturen von Lötmaterial und Grundwerkstoff dicht beieinander liegen. In diesen Fällen soll das Vormaterial getrennt zugeführt werden, wobei die unplattierten Bleche nicht so hoch erhitzt werden wie die Aluminiumlotlegierung. Die Löttemperatur wird erst kurz vor oder beim Walzen erreicht. In ähnlicher Weise ist zu verfahren, wenn nur eine der Metailagen lotplattiert ist.With certain aluminum alloys it is difficult to find the right one Set the soldering temperature, as the melting temperatures of the soldering material and base material lie close together. In these cases, the raw material should be fed separately the unclad sheets are not heated as high as the aluminum brazing alloy. The soldering temperature is only reached shortly before or during rolling. In a similar way must be used if only one of the metal layers is solder-plated.
Bei der Verwendung lotplattierter Bleche aus AlMn 1 wird die Probe in einem elektrisch vorgeheizten Luftumwälzofen auf 630 0C aufgeheizt, dem Ofen entnommen und sofort in die bereits laufende Walze eingeführt. Beim Walzdurchgang wird die Fasermatte mit Lot getränkt und das überflüssige Lot aus der Probe herausgedrückt. In diesem Fall ist der Walzdruck so eingestellt, daß keine merkliche Abnahme bzw.When using solder-plated sheets made of AlMn 1, the sample becomes in an electrically preheated air circulation oven 630 0C heated, removed from the furnace and immediately inserted into the roller that is already running. During the rolling pass the fiber mat is soaked with solder and the excess solder is squeezed out of the sample. In this case, the rolling pressure is set so that no noticeable decrease or
Verlängerung der Kernbleche stattfindet.Extension of the core sheets takes place.
Zur Konstanthaltung einer gleichmäßigen Walzentemperatur müssen diese gekühlt werden. Aufgrund der tiefen Walztemperatur ist das restliche Lot des Verbundwerkstoffes nach dem Verlassen der Walzen bereits wieder erstarrt.In order to maintain a constant roller temperature, these must be cooled. Due to the low rolling temperature, the remaining solder is in the composite material already solidified again after leaving the rollers.
Bei Erhöhung des Walzgrades werden die Kernbleche im ganzen Querschnitt verformt und verlängert. Das Material verschiebt sich dabei unter schärferer Verformung gegenüber den praktisch nicht verformbaren steifen hochfesten SiC-Fasern. Diese Scherverformung ist erwünscht, um Fasern und Blechwerkstoff inniger zu verbinden und damit die Haftung zu verbessern. Bei zu großer Scherverformung, d. h. zu hohem Walzgrad, treten große Schubspannungen auf, so daß die Fasern reißen können. Der günstigste Walzgrad muß also zwischen 1, 5 und 10% liegen.When the degree of rolling is increased, the core sheets become larger in the entire cross-section deformed and elongated. The material shifts with sharper deformation compared to the practically non-deformable, stiff, high-strength SiC fibers. These Shear deformation is desirable in order to bond fibers and sheet material more intimately and thus improve the adhesion. If the shear deformation is too great, i. H. too high Degree of rolling, large shear stresses occur, so that the fibers can tear. Of the the most favorable degree of rolling must therefore be between 1, 5 and 10%.
Nach dem bevorzugten Verfahren werden Proben mit 15, 6 bis 17,8% Verlängerung hergestellt. Sie zeigten bei Röntgendurchstrahlungen in Abständen von 3 mm periodisch gerissene Fasern. Proben mit 0,9 bzw. 3, 2% Verlängerung zeigten dagegen eine sehr gute Haftung und keine Risse der Fasern.The preferred method produces samples with 15.6 to 17.8% elongation manufactured. They showed periodic x-rays at intervals of 3 mm torn fibers. Samples with 0.9 and 3.2% elongation, on the other hand, showed a very high good adhesion and no cracks in the fibers.
Zur Verbesserung der mechanischen Eigenschaften des Kernwerkstoffes, insbesondere zur Verbesserung der Warmfestigkeit bzw. des mechanischen Verhaltens in der Wärme, kann der Legierung der Metallagen Eisen und/oder Nickel bis zu 3% und jeweils bis zu 1% Chrom, Titan, Zirkon, Kobalt, Vanadin oder Molybdän, auch in Kombination mit anderen die Warmfestigkeit steigernden Elernenten zugemischt werden.To improve the mechanical properties of the core material, in particular to improve the heat resistance or the mechanical behavior in the heat, the alloy can the metal layers iron and / or Nickel up to 3% and each up to 1% chromium, titanium, zircon, cobalt, vanadium or Molybdenum, also in combination with other elements that increase the heat resistance are mixed in.
Claims (11)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3033725A DE3033725C2 (en) | 1980-09-08 | 1980-09-08 | Process for the production of a fiber-reinforced composite material |
| AT80710024T ATE7405T1 (en) | 1980-01-04 | 1980-10-10 | FIBER REINFORCED COMPOSITE AND PROCESS FOR ITS MANUFACTURE. |
| EP80710024A EP0032355B1 (en) | 1980-01-04 | 1980-10-10 | Fibre reinforced composite material and process for its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3033725A DE3033725C2 (en) | 1980-09-08 | 1980-09-08 | Process for the production of a fiber-reinforced composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3033725A1 true DE3033725A1 (en) | 1982-05-06 |
| DE3033725C2 DE3033725C2 (en) | 1982-07-15 |
Family
ID=6111374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE3033725A Expired DE3033725C2 (en) | 1980-01-04 | 1980-09-08 | Process for the production of a fiber-reinforced composite material |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3033725C2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109576697A (en) * | 2018-11-23 | 2019-04-05 | 江苏科技大学 | A kind of Al-based coating and preparation method, using the Al alloy composite and preparation method of coating preparation |
-
1980
- 1980-09-08 DE DE3033725A patent/DE3033725C2/en not_active Expired
Non-Patent Citations (1)
| Title |
|---|
| NICHTS-ERMITTELT * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109576697A (en) * | 2018-11-23 | 2019-04-05 | 江苏科技大学 | A kind of Al-based coating and preparation method, using the Al alloy composite and preparation method of coating preparation |
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| DE3033725C2 (en) | 1982-07-15 |
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