DE1533187A1 - Process for producing an alloy from a highly reactive metal component and a relatively unreactive metal component - Google Patents

Description

PATENT ADVOCATE

DIPL.-INQ. HERMANN BARTH 85 NUREMBERQ, BÜCHER STRASSE

(AT THE TIEROÄRTNERTOR)

^v ■ j. '.: ■' - ■

i - 81p2c 2063 -

85 Nuremberg, September 28th * 1966

TELEPHONE W9I11 3 3304 POST CHECK NORNBERtJ 480S4

• ΑΝΚ: DEUTSCHE BANK AQ, N * R | "H" O "J" f

William Juiaee Buehler, Bethesda, Maryland »USA

"Seduced you to extract an alloy from a highly reactive one MetalDcomponent »and a relatively un-

reactive metal component "

The invention relates to the extraction of alloys, The one high-level metal and one verbally unreactive White metal »

Üur obtaining alloys lubricates a hochreoktlven IlettOl have been tried a variety of methods and Xeohniken ₀ oils, however, were unsatisfactory. Attempts sur recovering

9098S1 / 081I

BATH ORIGINAL "-"

! Alloys of the highly reactive metals titun by pueion techniques were not very successful, for example because of the reactivity of the molten titanium with the two-dimensional elements oxygen, waoeerotoif, nitrogen and carbon. J) The use of the known keruminous crucibles, for example from "BiUg · Al ₂ 0" etc. * in the production of 'iMtunalloys' leads to "BU a brand contamination due to the zv / iBchehatomaren knergie of titanium and the suuerotoff of the crucible" The use of crucibles from high-purity alohten graphite was not much more successful, since curbid impurities resulted from the effect of i'itan on the carbon of the seal feasible and costly. .

As soon as suitable methods of combination were lacking, the alloys of highly reactive metals were generally used in the arc genechaelz method won. In this way hot examples were white "Wiokel titanium alloys produced both with self-consuming alloys and with Jauer electrodes using a water-cooled copper crucible." the following disadvantages:

1 «Due to the lack of the RtthrMöisXichkeit the 3chmelsse difficult "

bad 8098B170t1i

2. For alloy cleaning during the Sohmelzvorguncee ventilated little or no chance at all »

3> Among other things, chemical ttleichmuuiekait in tlen (Jufcblßcken o "fall _y ou aas costly electric arc melting more" can be carried out "

4 p j & s only limited guiiforms can be obtained »

The invention is now based on the task of obtaining Alloys with a highly reactive metal and a relatively strong nonretuctive metal a simple "method to lift, dae At the same time chemical homogeneity is guaranteed and cleaning allowed. In particular, such a pre-faucet is necessary for the extraction and dae GrieLieii given by # ickel-ϊitan ~ L · e # ier ^ nί5en ate Ox / isenvertin cleanings from the nickel

rt been distant "

The problem is solved by the fact that the relatively unreactive coraponents are thickened in an inert atmosphere and that the highly reactive metallurgy is added to the molten metal and that this equilibrates. and that the Legiaruiig obtained is then brought to the solid state, with melting being carried out in a container that is also stable (stable) material, and with refractory material from the Sixor and HagneMia group being selected.

Under -'Behalte vn auö stable work a tuff v / erdeß not rmr ..verstunden that completely bestei from öolchi π ILttorialien? _R .en sondern--

909851/0818

. BATH'. ORIGINAL

au oh belial tar, which are available from other factory pots, but have an inner coating of nuts atabileö material. j) au ütabilo> iatcrlal, velcuee to the ü & lüunß the uehulter is used, la generally has a purity of at least One thing to watch out for is "Uta to reduce the certainty of excess cleanliness" which result from the aor "weakness of the reactive metal old the oxyver impurities" / oils in general a binding agent present in aolchon "

The reserve unrsalctive huteriul is melted in the container, because it has been found that "all" unreactive components exert an effort effect on the reactive metal body. terewieohenwlrkung is decreased · s) of a iJeruhigunßeeffeiet concerning ** is oiitlich reduced when the AtoaverhdltniÄ the reactive component cure unreactive component calibration as about 2 behaves t 1, 00 is daa erfinaungegecüAue method üieruniien tm wirtuiwMten at L "aie are innerualb diesee Verhaltniaeee .

The Hetullkoupönenten has been shown in low frequency Duktlonedfen ereonmolaen, since here a good Duroh "i" ohunii takes place, which leads 8u oheaioüiier homogeneity. Vena the suede-free liner duction is preferred, ed can trots- * the other Bohmela methods are also used »if they be carried out in an inert airfoil and

unraactive component cueret ereohaolien becomes.

9O9 8S'1 / 0Ö18 bad

If the exact procedure is carried out for the process of minimizing a Mickel-Si tan alloy, then it is advisable to "bring a dry, clean magnesia or chloro-oxide crucible with the desired weight antoil of the nickel into a low-frequency induction furnace in an inert atmosphere" Molecules are melted and the necessary titanium content is then added to the molten Kickel using a steaming rod given to freeze.

To remove the oxide impurities, it is recommended to use In Further development of the process the chopped alloy in con · » Cycle contact to bring carbon in the vacuum. The alloy can either be through louvers la vacuum at a little less than 10 mm in a carbon container, voraugoveiae a «, high-density graphite crucibles, or by induction-resistive sealing of the The alloy can be refined in a vacuum at at least K) "** mm in any suitable container, to which carbon is then added. It is assumed that the removal of the oxygen impurities in a nickel-titanium alloy takes place according to the following reaction equation: ■

Ni ₂ O + 0> 4f i + 2Bi +

909861/0818 _{BATHROOM 0R1Q1NAL}

i) The weakening of the KoJiI enotoffee can be increased by adding the metan "to the β" η ohniol zenan alloy. It has a high molten worm and is not alloyed with the metals that are present in the geoohiolised alloy Overshoe of Kalaiuw "or Magneesiumunmetall (based on the necessary overshoe, uia to combine with the existing Oxyijenimpulsen) under the upper oil of the molten alloy in the Crrai) heat container, where the metal and the Suueratoff an oxide form »that can be withdrawn as slag. If the protection is reduced, the metal is removed with the higher pressure when using vacuum technology. The cleaning agent can also be pumped into the ohmic zone of the alloy in a graphite crucible, whereby the waater is blown 3 "according to the oxide impurities eich connects and forms tfaeeerdaapf.

All representative examples of highly reactive metal components are group IV of the metals, such as hafnium * zirconium, Sitan new »and the aeltanen Krden, vie Oer, etc. As representative examples of relatively unreactive metal components are iieen, cobalt, copper» indium , Aluminum _{5 called} nickel, gold, lead and the like _;

i> The ijurohführungsisiölichigkeit ders HeiniAiUiigSTsrfaiirejis λ «t bs beiapielswease the alloy

Obtained by the er £ indwngsgeiai.Ms * e process before deia solidification

9139851 / ßfcli BADORfGiNAL

"wherein the alloy is kept under vacuum in Schmelsaustanu" are cast into a graphite crucible iiur cleaning can but \ also start from a solid ingot is erechmolzen inüeia this in a ttraphtttiegel under vacuum "

Oils Jielnieuhg can also be effected by pouring the geachwolaene alloy through a carbon-containing funnel under vacuum. _S is poured form eoll made in the dae solidification.

JSttr Refinement of the alloy into the liquid or solid form A specially designed form can also be made from high-density, purified graphite “ITia die tfona is a suitable one Induction coil placed with taps, so that special Parts of the pona can be regulated in the heat

When the batch "to be put into the mold" has melted, the mold is warned of a temperature which is above the melting point of the alloy in question; liegte After filling, the mold is gradually switched dia Inuuktionsapule _t starting at the bottom of the mold "wirdp By daa Guüatück brought from the bottom of the mold upward buin Iäi'3tarren let it possible a minimum" to generate n SChv / indungslunker, the Then Iia bsreioli of the Guiitrioher developed 3> by the (rieUen in the vdrsrwämten form v / ies a fine

- ■■ "■■ '■,

Quüoberfidohe with oitinal ouwdsfinltion "in thin la ^ en and.

Porosity within the Guüuuerßchnittes achieved '"909851/0818'

• .. 6A0 ORIGINAL

If dl · (Jh & rge, which should be given in front, feet let, then the kiln is placed in a graphite funnel, which brings the form βη £ · at the top, whereby the induction coil leads ttuoh around the Srionter From and there funnels are flooded, whereby the alloy in the funnel eohmilsct and flies into the farm. The solidification is then carried out in the Velee mentioned above, when the blowhole is placed in the funnel.

The invention is explained below with the aid of two examples:

Example I.

Kine Miokel titanium Lötjierung from 55 Gewiohtsprosent Klokel and the rest titanium is treated as follows "

2750 Orana Jickel in Fora von Karbonyl-üickel-Öranalien (99t9 ^ purity) are placed in a Kagneaiuno * ydtlegel (99 * 9 ^ purity). J) The seal is scalded in an induction furnace which has an argon atmosphere in a pressure from an atnotphure. The furnace is operated with an induction temperature of about 3000 Herts, so that it is heated to a temperature that is little more than 1600 ⁰ O, in order to bring about oao Öohaelstn m * 225Q Örauie Titan (in loeer Öohwaoa "form ) are added to the molten oil and the temperature is kept a little above 1500 ° C " w \ u ewar" long, bit uuo titanium and the nickel are completely mixed, wae gewOJuv ·

9098517 0818 _{BAD 0R1Q1NAL}

Itch takes less than every 5 meows. Di · gesohnolsene

is immediately put in a suitable front case

Example II

Sine HiOtOl-TItUn-LeOiOrUiIe of 55 Gewieitteprosent jfiolcel and ! ■ The rest of the Vitan is cleaned, while the alloy is turned into one hoohdioliten OrAphittiegel ^ e ^ ebea is »the dwnn is yerbruoht in an induction furnace. Thereupon a Vukttü »from IT ' and the induction succeeds * at about 300 Hert ». Here eation is kept at about 1500 ° U so that the purification is carried out cause} it is then converted into a Jtoxa sur Krstarmng

9 0 9 8 B 1/0818 ^BAD original

Claims (1)

Claims 1 · Process for the production of an alloy with a highly reactive metal component and a relatively unreactive metal component, characterized in that the relatively non-roasting component is first melted in an inert atmosphere and then the highly reactive component is added to the Sohmelae and this is melted and this is melted then the alloy obtained is made to solidify, the Sohmelaen being carried out in a »made of stable material and the refractory material being rummaged out of the Thor and Magnesia group. 2 »Make! Their only claim i, characterized by duü that Schmelaen is carried out in an induction furnace » 3. Verfunren nuch claim 2, dauuroh in DAT metals are used in which dos Atosverhältnis the hoohreaktiven component do not do the verhaltnienariig unreactive component About 2 s 1. 4. Verfuhren according to claim 1, characterized in that the inert atmosphere is generated by means of a noble gas at a pressure of at least its atmosphere « 9 · The method according to claim 1, characterized in that magnesia is used as the stable "material" 9 0 9 8 51/0811 bad original - 11 - .6 * Terfwiren according to one or more of the preceding claims, döduroh gekennaelohnet, last the molten alloy see below their cleaning under vacuum with carbon in contact is brought * 7 »The method according to claim 6 _y characterized uuti as -3
Vakuttia a sol before β of at least 10 'cam is chosen. Ü " Verfuhren n & oh Anupi'uoh 6, characterized by the fact that the Kohlj""-iLontakt; contact is effected because the £; esciUQto, dissolved alloy was placed in a graphite crucible ■ '. ♦. 9 · The method according to claim 6, characterized in that it indicates that the carbon contact is made by pumping carbon into the geohaolene Alloy; causes wizd. 10 »The method according to Anepruc) i 6, characterized in that ^ ^uü > he tall» us of the primordial group of Kulaluia and magnesium is arranged below the surface of the molten alloy during contact, 11. Method according to Αηοριπιοη 6, daduioh gekenn2uichne3t, dutf Waaaerstoff in all the nipples during the contact is blown in. 12 * application of a process was called one or more of the Anaprüohe aur obtaining a . jait 50 to 70 GewicüteproEent tfjßkel and otherwise i'itun, '" 909851/0818 BATH ORIGINAL. 15 »Process eur'i <? * R guild of an alloy with« infer hociireaktiv MetttllKoap0nei * ta jisU a verholtniöjaäiiig unreactive metal * lcoeponente, ii »« btaomiere a Kiekel-fitan-lre ^ ierung old 50 am 70> j Wiöke'i tin-i ia remaining titanium, thereby marked, atti »eunuchst cie vsrhultn ^ maJiiii unrealctive MetallkoispoiMsame In a crucible of the ΐηοζτ * and MagneeJa group inductively in an inert atmosphere geuchoolEcn \ iXvd _t d & ü hereuuf» Uecuuf »Uecs crucible the highly reactive crucible is created , ctau anochlledonu as neechmoleene alloy under vacuum from mineatene \ O " ^P tarn lait KonlenBto.ff is brought into contact and then sum tretarreη _: BATH ORIGINAL 909851/0818