DEP0050004DA - Nickel-copper cast alloys - Google Patents

Description

IM Irfiistog concerns lü ^ ml ^ fi®r ™ Q®B ^ Jj®gß.®tmgm $ die iss% t80 i; 1 © to for des GieSea von VeiitilkSrpern Gnw _i Clbar, Mersni but rdelit limited Siat _e

SIalg ^ j; ri © ü Tea valves and aneh 'other · SaStMM Iiaben ^ el high temperatures, to® part me to several hundred degrees, work au * In Tieisn cases these cast parts do not approach ms ^ mmn ^ h ^ msfrmkmgm to withstand »sondera must also be tarösioasfeisi »/ ils example I be 'ö » $ f-3raeir? @atili f ir IatoMtiTes. called "hot di§ Teaperatwea to IiEgefSiir have aussuhsiten 400 ° C IMcks of 28 kg / ^'second

Mainly Gea from Iickal ma copper existing alloy, Si © are dett ^ ⁿ ^ oa Aaen "X" ^ 9tall ^ff hkwmt, near the star producing tea valves and others. Castings of this kind share the desired pourability and corrosion resistance »but at around 430 ° C, the f # 0tigk © ii start *

The present day is based on the ' - ^ rkiaatnis _t

that the « amies tigiait from ii0kel * Ii.ff @ r * L @ gi @ nagfs dureh

To write from

Btiftgea Idaiasr Kengta Sirkoa sola * verbos ^ rt tmrüm KSNA "Bi @ ÄrAög is zlrfcoahaltlgea! IlckeKupfsr ^ uagieriingss bsi bohsa Tenpsraturen söigt a beaerkenawerte iteigeruag against alrkoofreien alloys same 2USA" ssststtsg _# IUsses is auestret wiehlig soto & I expected for '' bsrböansprucihuageB represents% "tigktit as msh for, cisS for large '.. • borbslesttmgea ^ toaä to Bölriebs #la Brueh sees plSfcsUöh © Iatritl _t soaäsra «la © poured usymmg Toyangtbit

fttoräe forner found » SaS trots Vorhen & smeeia TO Mrkon dis' IitniQrasgeQ« roicteS good GieSefgimeebsftea nsbea »cim? 9» ti ! fck8rpsrr or dergleieaea by means of CieSsa hersssteilen. _s voiwgesfctst »dsS rdilsiw ©» Lobieastoff aaä iiangaa or Slsea or both la fBsgös »8seßea laösgea? © rtea« ft #

GeaUS Liefereadar .'irflndttsg ist ö ^ Og Ms I _f O # Zirkon Legisruagfa augaugt *. as siladestsas 5 ^! Höfel and ^t ABWH © of äaagas or both la © IASR d ssataeage Ma "iiohleaetoff to C # 04 Ma 0.6 ^ Silisiaa Wi C _f J Ms .5% sl ^ upfar la eiasr Z $ mg & rm zai & deste & s ICf · aathaitea * iriiMuügsgsiatS w & rdea this © lfgienmfaa for pulling pieces vasnseadet » oil« b © i TeiageraiuTia toa 550 ° 0 wad about Sti srbeilea Isab «*

iwr Torsugsraeise "asu ^ asidesde elrfcoagebait Msgt yoa to Te ^ raturea off for 3ie the 'Gußatiefe © bestirnt Giad, sails ¥ oa the tensile strengths * dia the QuSteila each short ir iärmiing uad sixteenth long aadeaterader ^ rwaraang habea sls $ a" which to Xetetere Zagfesti glide mr t elaea Kiawsii for the ^ asrsteaflfeatigkait there « B © i Arbeits & e &? eratorea

To write from

a, ^ üettl ^ mf f ^ f ^ aS-Lsgiti'ffipa ⁰ - ^{Bla, t} 3

Ms? gm 48ö ° E is the Törztifpwsis # anaarsonäenxle zirconium eno.ifcernä U »04 Ms ö * ^5UE;! - # Weaa äle & rbBl tsteaperstar 538 ° Q Vmltkt ₉ , the most favorable 2irken content Ms m CmSQfS · can be «attempts» which ror a »at 427 ° C break engaoteiled w & was # b _s Keigt © a» tlaB «er IrsitIosg a good» Ssiaerstasdftefigkeit © in SirkoRgshaH wm O ₉ ?? · "'is advantageous» Bti of a lower te ^ eretur & n argute Sirkon- * gohftlte τοπ 05 Ms 0 _t 20:; i © ins «,» saal Vorteilhef - ^ r • .Slgense gften » .Cs eise good tferhintag tos ^r IgesseIisftea at HasaEK temperature and b $ i Iiehss' Ttsperstares _f good GidSbarireit aoide economic efficiency "bsi suverifcssiger production at or Blslea _f came a zirconf-effect of v» 05 Ms O _f advantage

! The zircon may cter ge clam © Isenen alloy "obtained tegisriiEg" in any suitable Fom Imigegsto wsräss * fofrie & enstellenle results wstSm bsi / scaeadong older hasileisüöliöbeB ^ iiisiss ^ iiirfeoa you ungefä & r 48; "ii Uziis _t .4H Sirlcos _f read. Sissa contains * just as old a lirköB ^ iek®! * Iegieruag from YiM 'zircon w »d 53t * almost pure ^ iokele · Before adding ÖesSirkons y is the bowl with a suitable DtS0xj% tis3Siaittöl, for example Slligias _i . & An & or the like, .iesasjäiert * be Oer producing IUckelupfor-Lsgiarungen is. usually required "a Aiesent old honor Sohwefelsfiinitit» m & example ⁱⁱⁱ S ^ sssiaa _t Kalsiiisi mti far same, "added as jättschisefeiönga- or sulfur-binding agent" * Bevorzngt is Mggssssiisi UEAs _t in a ^ close O »05 to O _t I ^ te SoIimeiss la der

Zürn letter of

The pouring ladle shortly before being added in the IifegltSea.

3er SiUaiuaigeIialt kaaa tsh O _f 5 Ms 5 & YerSnderUeli, sein »where Si® la te Iseifiirasi yortaHaaendä .'liöühst * mng @ wm Kitfcelgelislt and mn the desired hardness' depends» «« for general ¥ sr «8. Admgss - * - The Siliaiumaateil i big 1 * 5 ^ amount * Sftm the Siiiaagshsit eats a legl "·" TOBg sit 65- iilefcei 3 ^ i exceeds "the solving acegable Ämefeit® eier garte uad ibnabae der Stfemag _s - however aacnt ifcra hocea & e stability : have susauhalten .Sroaiim by Saapf si © for some purpose, "wis Ventiltei le- like Telle or that strokes Sleitclrlieke, valuable * Is ^ agi Images of this kind Sberateigt the SiUaieagehalt the üregne roll t äiger I * 5 © liöhteit _t Sotés still Sili - * siitä is present in aausgasehledensr fora "The silisiusuaenge required for a ready-to-slide frame is steady old deafctigfligit * So result" a Ssispiei 2, S? 5 3Uisi "aa" 50 £ ixieleel ia essential that the same OsffJge as 4 # 25: · 31 Haina at S7 $ Siefcei. Sist Ifegteruftg _v die tingefiihr 2 _# 5ί < Oilisiia wid about 65 '** liiekei contains * tem applied Wferden _t if lower shepherd _t but higher Dtkmmg gis nit 4f- ■ "i shark * salary are eriordorlioh"

^ aa VorhmäemöeiB 7cm Bisss odsr Msngsa is aar-Erseiiusg high kiaailttasigkeit and good pourability important, aaä usually both zleate are available in small amounts * Prevents vtizä 0.5 to l _f 5 £ Manganese »higher Aateila tos 2 £ or even tos 3- can auweilan applied Wördes * With a manganese string of 3 #, the Xagierungea

To write from Ji9M ~ ^ f ..? I * S ^ Mglt.i! Impji ' ¹ Bio «

dasu »" at a temperature tcii about 530 ° C w -iig-r elastic m BwLn _f OTgliiieii high Psstigkeitsir • -rto stay » CriiSstiiaka lit hohm 'si Usiuagebalt aust ^ no-sosn» is dssr .isengehali so su Iialtes _f de3 er bsi ußhosisteiaperatur ann & herad. irmerimio the full TiSa Uchfcei ts limit lies "Cie L ^: 8ehstaeng8 -des ir, der Legiezmg ! feverish Uisens sit to ^ lekgigsimit * Ie an Isgierusg with izagef uix · 67? · EE increase 5 · ' Tensile strength at a ie: uaer & tur? Os 427 ° C somewhat, but the Xebiung _t rergUebo » Eit a XeegidKtmg culprit the same Graadsftsai ^ aeetzang and eise® äs ^ age ** hold of about 1» 5; ί drops noticeably »Kisorif-free alloys can If slopes are present in these Iegieriagen * Preferably throw. Jsdooh a Sisengekalt tos SlRdesteas Ö _f 5 # »2 @ i tai ^ fahr 13 Sieets is the? ie & ges content less acceptable« la al Igeaeiaen is dar SisangsIialt under 2 _t 54 in the sail swidchen 1.5 to S _t O ¹ p *

The ionic substance content is usually kept below Q> 35 #, ' Torzugsssise rnlaotsn O _f IQ Ms 0.25'"In some parts, the EcfclermtoffgeneIt Ms su C ₉ Sf- " Generally speaking, the tensile strength increases with a Sohienteffgehait Me m BDgefgbr O _f W at low 3irfeeneateilea in alloys of about 69 ^ - Iiekel "1.25 ^ _f Silisium äset torwiegend Supfsr.

As a result of the crapMtMldusg hot carbon content, the tendon decreases somewhat ♦:) he tendency of the carbon su Grophite formation is with increasing:.; i lisius content

To write from

a «.JliskelwIiupfi32> * öuS ™ I, 0gi-emii-güä ^{,? Blal (} - 6

. bs • '• OH ¹ Iers pronounced NND less "separation of': * ~ upfer content greater ITlrt _t of / ornaadenfleisi large quantities Sirkonsehetnt the Heigasg of KohXaastoffs to graphite formation 'twas © oindern shown below.

The Hiokelgohalt is Yöraügsuelse within the range "τοη 60 7 <# <cold *. Iliekel usually contains sine Heias Umgb Kobalt j nmhBWmnä is \ anter dar Beaei <Sb * mm Kiekel understand the Sieket-Kobaits-usae su * bit ESebst * · senge cobalt "the wfcoasen label" is eaanähernS the moving rig before -. • LSEA "the .Best the Ugiearuisg is sosentilöheö is stoner and is preferably 25 to 35 '* 3ie c & whose -leaente" normally in cast .i ^ iickelv -uptes t-egierusgea for hochiteefeete parts TOrkooBso »kisses also in ile GiiSteiles according to this invention be orbenden» such as example Sese ^ fdatiensftittel and SaibiabiMer _t for example Titas in small Üeagea *

Be short, long-lasting engagements that have been carried out at the top tenperatnron "" eigea airkenireie $ ih ~ kel ^ upfer - I "glsrungen raised, © firmness and debating at Ulis®""grsden up to m 371 ° 0 so a trans kris tslliniπoben Bruch * Boi about 430 ° E becomes a small part of the Bmehs latex * "crystalline dendritic"*; above 430 ° S tsdrd the Brneb very and more and at about 48 ° C to H constantly dendritic * JUessr "eebsel in dar i .rt of the letter sird τοη of a sterkea. Decline in firmness and leaning accompanied · The erf in flange * - fesaös yorhaßdenseia? Ea Zirta ee-i & rfct, that sieve the .leigimg of the stable «u iaterkristallisischea Brueii within the

"Castings from Hickel-7

To _{m Schreibenvom} a "copper alloys" _ßlaff

Temperature range from about 430 ° to 540 ° C Yer Iiert.

The zirconium also has the beneficial effect of preventing hot cracks in the castings. This is no longer the case with castings high silicon alloys that are quenched or

must be cooled quickly, the ^Ä penchant to bite due dr at cooling auftreteaden'Spannungen less great when zirconium is added.

To illustrate the advantages that can be achieved by applying the Srfindu ⁱ Ig, following number is given panel, which refers to an alloy of the following Grundzus ammensetzung: 28.2 $ copper, 0.75% manganese, 1.6 i »iron, 1 , 3 # silicon, the rest mainly Idckel:

Number table I

Experimental C Zr. Tensile strength in kg / cm elongation in £ pieces Sr. Int in * ° 0 ^Ö

X 0.17 0 3780 2790 2160 17.5 3 »0 2 0.15 0 3460 2290 24 3 0.15 0.06 3580 3260 45 40 4th 0.18 0.12 3960 3400 41 30 5 0 f 1 *] ^ 0.35 4020 3650 2830 33 30 6th 0.18 0.59 3700 3490 25.5 25 7th 0.11 0.76 2730 3110 13 22.5 Ss is to see _; , that the To | gfesti gkeit d < ir IdckeL - copper

Alloy at 482 ° C is very much improved by adding zirconia in Frenzen from $ 0.05 to $ 0.60, whereby the maximum tensile

/ Castings from nickel *

For writing to KUpfer-IiegierUagSil ^fi Blall

Strength is achieved with a zirconia from O ₃ IO to O _t 40 $ “If the eirkongel is increased further, the tensile strength drops at 482 ° C, but even at 0.76 zirconia the tensile strength is even greater than with a comparable alloy without it Additions of zirconia ♦ At 527 ° C, the maximum tensile strength of alloys containing 0.35 $ zirconium, and even at around 0.75 $ zirconium content, the strength is significantly greater than that of zirconium-free alloys «The elongation is CTbar the entire range of 0.05 up to 0.75 $ zircon at 527 C by about 700 to IQOQfi larger than with zirconium-free alloys.

To show the increase in creep strength, the following details are given. Test pieces, which were kept at 427 ° C., were loaded with 2460 kg / cm at the beginning of the test and subjected to this load until the pieces tore or approximately a week had passed. The test stacks that had not cracked were then subjected to a 350 kg / cm higher load for about a week, whereupon the stress was increased by a further 350 kg / ce ^ and so on until the test was terminated by tearing the pieces . The results obtained was m the following:

Number table II

Trial Zr. Time in h at different total time of stretching

piece Ir. in $ new loads up to in%

2460 2815 3160 3520 ^{break in h Uim break}

kg / cni ^

- - - ^ 130 8

9 0, o7 165 170 165 500 29

10 0.35 160 170 165 20 515 21

11 0 59 165 170 '165 2 502 18

12 0 76 165 170 170 240 745 22

^1, castings from Jiickel

For writing about copper alloys "

The increase in tensile strength and elongation at elevated temperatures caused by the addition of zirconium to Ii ekeI copper is surprising, because tensile strength and elongation decrease increasingly at tree temperature when zirconium is added, such as BUS; Below- * the number table is j

Number table III

Test piece IIr. Zircon
salary in # tensile strenght
in kg / cnr strain
in. # 13th O 5770 38 14th 0.12 5400 35 15th 0.22 5600 36, 16 0.59 4780 25th 17th 0.76 3800 24

Some chrakteri ε tische Cusss tücke, which are exposed to increased Temperaiaxan during use and can be manufactured according to this invention are valve parts including cast valve bodies, valve seats, discs, pistons, piston rings _f valve tappet valves, reaction vessels and stirrers that operate at temperatures of 315 to 595 ° C, especially clay 372 to 482 ° C and must have strength, freedom from bites and the ability to withstand tension and impacts.

Claims (1)

To write from lÄ * ly. * 125ß on ^ rfcsähäa. C # 02 Ms 1.:'ϊ; ΐ ^ iÄoa * to 5 <■ XiA-'n ixV ^ ey ", • j ^ u ₁ %) .l ^ nlitimn . ⁱ Its ^ ii.-fissradi I, «auurch ^ 4κ & κ &&& ΐ) & ΐ» dall öer ) il5ki42eostXi rock 70> 4rr a ^ & s: & ok4.i 55> is 25 $ te virk> n, ρίις, ΙΛ . "c -S" , # 75 / Ic It Xc ^ iilr _i ,. »25 · ^: - ^! · Ι & ct,., Ri ^ iiy '^ i: I Il, * , 1,3' Λ: i ⁱ 'jr fc:; al c. .3 vis? J v * u, sy; ä ^; - va 1 ",.« • -S · Li ^ c «2 £ :; - ίθί.Γ sir I ^ stsUuag ran Vefiti! körpers *