LUS CEEB TOOM: Invar® feem ntau yog hu ua Invar®36

Ua haujlwm thiab Daim Ntawv Teev Npe Thov Kev Pab

Invar® tej zaum yuav tau ua haujlwm rau kev ua hauj lwm zoo. khoom anneed, uas yog khoom nrog ib RB hardness tsawg tshaj Li Rockwell B 70, yog siab rau cov khoom uas muaj sib sib zog nqus, hydro-forming los yog spinning. Rau blanking, ntaub ntawv ntawm 1/4 Thiab 3/4 feem ntau yuav tam sim no ntxuav tu tej qhov nqaij ntuag. Invar® yuav tau chemically etched. Kev zov me nyuam qhov twg yog ib tug loj kom muaj nuj nqis ntawm machining. Cutting Invar® muaj nyob rau hauv kab.

Kev Kho Invar®

Invar® yuav kho tau siv ib yam ntawm txoj kev hauv qab no. Cua sov thiab cov nqi txias yuav tsum tswj kom tsis txhob ua kev puas tsuaj rau qhov chaw (nrib pleb, qhwv, lwm yam)

Kev Siv Tshuaj AnnealIngt 1

Cua sov rau 1525°F +- 25°F thiab tuav ntawm qhov kub ib nrab teev ib nti nti ntawm thickness, Ces furnace txias ntawm ib tus nqi tsis tshaj 200°F ib teev rau 600°F. Tsis muaj ntxiv machining yuav tsum tau muaj nyob rau ntawm qhov chaw no

Kev Siv Tshuaj AnnealIngt 2

  1. Tshuab ntxhib
  2. Cua sov rau 1525°F +- 25°F thiab tuav ntawm qhov kub ib nrab teev ib nti nti ntawm thickness, Ces furnace txias ntawm ib tus nqi tsis tshaj 200°F ib teev rau 600°F. Tseem cua txias yog siv hauv qab 600°F
  3. Tshav kub rau ib teev tom qab 600″F +- 20•Ua raws cua txias
  4. Tshav kub kub 48 Xuab moos tom qab 205°Followed los ntawm cua txias
  5. Tas lub tshuab xaws.

Kev Siv Tshuaj AnnealIngt 3

Annealing dej poj huab tais thiab stabilization txoj kev

  1. Tshuab ntxhib
  2. Cua sov rau 1525°F +- 25°F thiab tuav ntawm qhov kub ib nrab teev ib nti nti ntawm thickness, dej ntws
  3. Ib hlis ob zaug tas lub tshuab
  4. Tshav kub rau ib teev tom qab 600″F +- 20•Ua raws cua txias
  5. Tshav kub kub 48 Xuab moos tom qab 205°Followed los ntawm cua txias
  6. Tas lub tshuab xaws

Welding

Pa hnab looj tes uas siv tau invar. Invar filler caij yog pom zoo rau cov neeg welds ntxiv filler.

Brazing

Ua ntej tus tsiaj ntawv raws li saum toj no. Tsis txhob hla kev nyuaj siab joints thaum brazing. Siv nyiaj thiab zinc dawb brazing invar®.

Kev Kho Tshwm Sim

Vim nws muaj feem xyuam rau cov qauv ntawm cov khoom, Nws muaj nws ib cov hnyuv ntxwm los kho cov khoom rau fabrication thiab cua soj ntsuam cov khoom uas optimum rau iav, nres, los yog brazing.

Kev Nyab Xeeb Nyem Annealing

Los relieve kev nyuab siab thiab ua hauj lwm ib ntawm qhov chaw hauv intermediate o fabrication. Nws yog npaj tshwj xeeb tshaj yog rau drawing, ua haujlwm thiab spinning haujlwm.

  1. Ntxuav thiab degree qhov chaw
  2. Anneal inmosphere tswj furnace. Cov cua tej zaum yuav tau ntub dej los sis qhuav, dissociated ammonia, cracked roj los yog zoo ib yam cua nutral cua.
  3. Qhov kub annealing kub tsis tseem ceeb heev; txawm li cas los, kub muaj peevxwm (ntau dua 900°C) ncua sij hawm ntev (ntev dua 60 Feeb) Yuav tsum tau tshwm sim vim hais tias kev kho zoo li no kev loj hlob zoo.
    Kos – 850• Txuas 30 Feeb.
  4. Qhov chaw no yuav tsum muaj nyob rau ntawm qhov kub rau lub sij hawm qhia thiab ces furnace txias dua 175°C kom tsis txhob oxidation thiab/los yog thermal poob siab (tej zaum yuav ua tau kom distortion)

Kev kho rau Oxidation

  1. Nco ntsoov tias txoj kev siv los ntxuav tu, kev pom zoo thiab kaj lug
  2. Oxidation – Kev kho nyob rau hauv ib qho cua hluav taws xob rau 850°C rau 900°C mus txog rau 900°C mus txog rau qhov chaw yog cherry liab (plhaub liab). Lub sij hawm ntev ntawm lub voj voog yog kwv yees 3 Feeb, tab sis vim muaj qhov txawv humidity thiab furnaces, Lub vajvoog kom muaj varied. Ces txo qhov kub kwv yees li ntawm 10°C per feeb. Thaum twg yog qhov chaw txias, oxide lom yuav ua. Tus oxide tej zaum yuav tshwm sim los ntawm lub teeb txaj dub dub hauv xim. Dub yog nquag tau dhau-oxidation thiab yuav tsis tas rau ib khob zoo hlau

Invar® & Super Invar® raug tso npe trademarks ntawm CRS tuav, Ib subsidiary ntawm Carpenter Technologies – Hu Eagle Alloys, npaj siab uaInvar® 36 lwm tus neeg, Hnub no!

Super – Invar®

Invar® (36% NI-tshuav hlau) Alloy lawm lub siab temp hlau uas xaiv rau expansion daim ntawv thov xyoo. "Super-Invar® (31% NI-5% nqi tshuav hlau) Nrhiav tau ib co nyiam vim hais tias nws muaj ib tug xoom coefficient ntawm thermal expansion hla ib tug kub limited ntau yam. Siv ntau hom "Super Invar®" yog txwv kom txog thaum-32° mus rau + 275• Quaj. Vim hais tias cov khoom pib txia los ntawm Austinite rau Martinsite ntawm qhov kub hauv qab no-32°F

Lub C.T.E hla lub xoom nquag, Txhua lub tshav kub nqaij coj txawv me ntsis, tab sis cov qhabnias no raug rau cov khoom siv ntawm 0°F thiab 200°F

Formability (Formability)

Super Invar® yog yooj yim ua, sib sib zog ntxuav thiab fabricated.

Weldability (Weldability)

Super Invar yog welded siv ib tshwj xeeb Super Invar weld hlau, thiab ntau yam uas lwm cov nas npib hlau thiab wires

Machinability

Super Invar® properties make it so the metal is tough and gummy, tsis yooj yim. Cov cuab tam yuav plow instead of hlais, ua rau txoj hlua hlua "tej daim." Cov cuab yeej yuav tsum ntse, noj thiab ceev kom tsis txhob muaj cua sov thiab distortion. Kev siv ib lub lag luam yog pom zoo rau tag nrho cov kev khiav hauj lwm. Machinability zoo xws li Kovar®, Stainless 300 koob, Thiab monel Alloys tau raug tus mob no. Ni-Fe Alloys feem ntau muaj ib tug nyiam tsim ib qhov chaw teev thaum kub ua hauj lwm uas penetrates qhov chaw. Vim li no yuav tsum muaj ntau zog los tuav qhov chaw uas deep oxide. Tus thawj zaug txiav yog feem ntau cov yooj yim tshaj plaws.

Invar® & Super Invar® raug tso npe trademarks ntawm CRS tuav, Ib subsidiary ntawm Carpenter Technologies