CS251205B1 - Method of steel components nitridation - Google Patents

Method of steel components nitridation Download PDF

Info

Publication number
CS251205B1
CS251205B1 CS450681A CS450681A CS251205B1 CS 251205 B1 CS251205 B1 CS 251205B1 CS 450681 A CS450681 A CS 450681A CS 450681 A CS450681 A CS 450681A CS 251205 B1 CS251205 B1 CS 251205B1
Authority
CS
Czechoslovakia
Prior art keywords
steel components
nitridation
temperature
saturation
field
Prior art date
Application number
CS450681A
Other languages
Czech (cs)
Inventor
Konstantin A Gracev
Vjaceslav N Bukarev
Boris M Gusev
Valentin G Pavljukov
Original Assignee
Konstantin A Gracev
Vjaceslav N Bukarev
Boris M Gusev
Valentin G Pavljukov
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 Konstantin A Gracev, Vjaceslav N Bukarev, Boris M Gusev, Valentin G Pavljukov filed Critical Konstantin A Gracev
Priority to CS450681A priority Critical patent/CS251205B1/en
Publication of CS251205B1 publication Critical patent/CS251205B1/en

Links

Landscapes

  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

Vynález se týká způsobu nitridace součástí strojů, přístrojů a zařízeni, zahrnující ohřev na teplotu nasycení a prodlevu při této teplotě za spolupůsobeni magnetického pole. Podstata vynalezu spočívá v tom, žé prodleva probíhá ve zkříženém magnetickém stejnosměrném poli. Je tím dosaženo zintensivněni procesu nasycováni a zlepšení pracovních charakteristik.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a process for nitriding components of machines, apparatus and devices comprising heating to a saturation temperature and a dwell time at this temperature in conjunction with a magnetic field. The essence of the invention is that the delay occurs in a crossed magnetic DC field. This achieves an intensification of the process of saturation and improvement of the working characteristics.

Description

3a«BneHo: 04.09.79 3anBKa: fr 2801856/22-02 MKH2 C 23 C 11/163a «BneHo: 04.09.79 3anBKa: fr 2801856 / 22-02 MKH2 C 23 C 11/16

Abtoph: TpaweB K.A., EyxapeB B.H., TyceB E.M., Πθβ,γβοκοβ Β.Γ. 3anBHTeJib: ββτορηAbtoph: TpaweB K.A., EyxapeB B.H., TyceB E.M., Πθβ, γβοκοβ Β.Γ. 3anBHTeJib: ββτορη

Ha3BaHne raoSpeTenra: CIIOCOE ΓΑ3ΟΒΟΓΟ A3OTHPOBAHHP CTAJIbHblX HETAJIE# H3o6peTenne othochtch k χημηκο-τθρμηβθοκοΑ o6pa6oTKe, a ημθηηο, k npopeccaMa3OTiipoBaHHH fleTaneft. npufíopoB, arperaTOB h ManiHH, pa6oTaromHX b ycnoBHHX Tpe-hhh. HaoGpeTeHne Μοχετ Ghtl Hcnonb30BaHo b npnGopo- h arperaTocTpoeHra, Mararao-CTpoeHHH h flpyrnx oTpacnax Hapopnoro xo3aňcTBa.Ha3BaHne raoSpeTenra: CIIOCOE ΓΑ3ΟΒΟΓΟ A3OTHPOBAHHP CTAJIbHblX HETAJIE # H3o6peTenne othochtch to χημηκο-τθρμηβθοκοΑ o6pa6oTKe, and ημθηηο, k npopeccaMa3OTiipoBaHHH fleTaneft. npufiopoB, arperaTOBh ManiHH, pa6oTaromHX b ycnoBHHX Tpe-hhh. HaoGpeTeHne Μοχετ Ghtl Hcnonb30BaHo b npnGopo arperaTocTpoeHra, Mararao-CTpoeHHH h flpyrnx oTpacnax Hapopnoro xo3ancTBa.

HsBecTeH cnoco& 33οτηροβ3ηηη fleTajieň b TJiemineM pa3pape (1).HsBecTeH cnoco & 33οτηροβ3ηηη fleTajieň b TJiemineM pa3pape (1).

CnocoG HOHHoro a3OTnp.oBaHHH 3aKJiKBiaGTCH b HarpeBe H3flejiHň' flo TeMnepaTypbia3OTnpoBaHHH b 6e3OKHCJiHTejTbHofíí 3ΤΜθθφβρβ. 3aT6M b paGowyio xaMepy nonaioT N2-h bo3-SyjKflaioT Tneromun pa3pnfl.CnocoG HOHHoro a3OTnp.oBaHHH 3aKJiKBiaGTCH b HarpeBe H3flejiHn 'flo TeMnepaTypbia3OTnpoBaHHH b 6e3OKHCJiHTejTbHofií 3ΤΜθθφβρβ. 3aT6M b paGowyio xaMepy nonaioT N2-h bo3-SyjKflaioT Tneromun pa3pnfl.

HeflocTaTxaMH aaHHoro cnocoóa hbjibiotcb: TpypHocTb 33OTHpoB3HHH rnyÓOKHx ot-BepcTHň b fleTajinx; ηθβο3ΜΟ3κηο£τβ noMemeHHH b oflHoň canxe peTaneň c pe3Ko pa3-jihhhoh reoMeTpneň h cooTHonieHneM Maccbi peTann κ βθβηηηηθ ee GoxoBoň noeepx-HOCTH, H3BecTeH Taxwe cnoco6 33οτηροβ3ηβη neTajieň b μηγήμτηομ none nepeMeHHoro tq-xa (2). fleTajiH b 3tom cnynae nop,Bepra»TCH opuoBpeMeHHOMy HarpeBý h βο3αθηοτβηιο3JieKTpoMarHHTHoro ποπη, o6pa30BaHH0My xaTyiuxon-coneHonnoM. OflHaxo rymecTByto-mmi Cnocoó a3OTnpoBaHHB neTaneň He no3BonneT n3MeHHTb (J»i3Hxo-MexaHraecxnxCBoflcTB (cnyaceóHux xapaxTepncTnx) xax nn4><by3noHHoro cjioh, Tax h caMoft MaTpHuw.Kp.oMe Toro, npouecc unHTenfeH.HeflocTaTxaMH and aHHoro cnocoóa hbjibiotcb: TpypHocTb 33OTHpoB3HHH rnyÓOKHx ot-BepcTHn b fleTajinx; ηθβο3ΜΟ3κηο £ τβ noMemeHHH b oflHoň canx peTaneň c pe3Ko PO3-jihhhoh reoMeTpneň h cooTHonieHneM Maccbi peTann κ βθβηηηηθ ee GoxoBoň noeepx-HOCTH, H3BecTeH Taxwe cnoco6 33οτηροβ3ηβη neTajieň b μηγήμτηομ none nepeMeHHoro TQ-x (2). fleTajiH b 3tom cnynae nop, Bepra »TCH opuoBpeMeHHOMOMy HarpeBý h βο3αθηοτβηιο3JieKTpoMarHHTHoro ποπη, o6pa30BaHH0My xaTyiuxon-coneHonnoM. OflHaxo rymecTByto-mmi Cnocoó a3OTnpoBaHHB neTaneň He no3BonneT n3MeHHTb (J »i3Hxo-MexaHraecxnxCBoflcTB (cnyaceóHux xapaxTepncTnx) xax nn4>

Uenbio HacTonmero H3o6peTeHnn ηβπηθτοβ ynymiieHne cnyweóHbix xapaxTepncTnx «e*Taneň h HUTeHcnAnKauHH npopecca HacbímeHHH.Uenbio HacTonmero H3o6peTeHnn ηβπηθτοβ ynymiieHne cnyweóHbix xapaxTepncTnx «e * Taneň h HUTeHcnAnKauHH npopecca HacbímeHHH.

nocTaBnennaH uenn nocTnraerca Tew, mťo HacMmerae neTaneň Bep,eTCfi b cxpenjeH-HtlX HarHHTHbíX nojinx. flpyroe OT.nHHH6 COCTOHT B TOMj HTO npHMeHHeMbie nOJIH noc-TOHHHbie. HcnoJ7b3OBaime cxpemeHHbrx μβγηητηηχ noneň npH 33οτηροβ3ημμ no3BOHneTHšMeiiHTb chmmgtphio nona xpHCTannHnecxoň peuieTKH o6pa6aTbiBaeMoro MeTanna TaxiiM 251205 2 θ6ρ33ΟΜ, WTO ΠρΟΤεΚβΗΗβ η,ηφφγ3ΗΟΗΗ5ΙΧ npopeCCOB, oSyCJIOBJíeHHMX 3.rieKTpOHHMM B3a-HMOfleňCTBHeM,. KBaHTyroTCH b flByx HanpaBneHHHX (HanpaBjíeHnn 3aHax>Tca BexTopaMHHanpH»eHHocTH CKpemeHiibix neměň). TaxnM o6pa3OM, H3MeHeHHbiň xapaxTep αηΦΦυ3Ηοη-Htix npopeccoB h o6pa3yK)mnxca npn btom xhmitockhx CBH3eň πρηβο,πητ He tojibxo kHHTeHCtiáHKanHH npopecca aaorapoBaHHH, ho h k ynynuieHmo cnyxefiHbix xapaxTepncTnx'fleTaneň (noBepxHocTHan TBepnocTb, npoqnocTB, H3Hoc.ocToňKocTb, MartinTHaa HHflyx-u,hh, KoppoaHOHHaa CToňKocTb h Tax aanee). IIpHMeHeHHe ποογοηηημχ noneň πρηβοπητ k H3MeHeHHK> 3Hepran axTHBanHH penaxca-u,hh aTOMOB a3OTa aa cneT Bxnana aHeprHH μηγηητηογο nona, a sto ofiecneuHBaeT hh-τβΗϋΗφΗίορΗΐο nponecca HacbnueHHH CTann a3OTOM η ycTaHoBJíenne onpeneneHHoro nnHa-MHuecKoro paBHOBecHH Mexny BO3MOXHbiMH nojio?KeHHHMH aTOMOB a3OTa b KpncTajinnqec-Koň pemeTKe. IIpHMep. Προβοαητ ra3OBoe a3OTHpoBaHne neTaneň H3 anexTpoTexHHqecxoň CTajrn, HepxaBe-íoPíeň cTaJlH, snexTpoTexHHqecKoň koppo3Hohhoctohxoh CTann,· KOHcTpyxnnoHHoň CTaňn“ -(HHTpajuioň) . fleTann noMemaioT b ΜγφβηΒ nenn, HarpeBaioT b Hacbituaromeň aTMocjJiepe noTeMnepaTypw H3OTepMHqecxoň BbmepxKH. npn nocTHxerthH TeMnepaTypw b Μγφεπε nenn450-570 C b paCoMeM npocTpaHCTBe μυΦθπη co3flaeTca cxpemeHHoe nocTOHHHoe μπγηητ*-Hoe none. Bo3fleňcTBne cxpetneHHoro ποοτοηηηογο μπγηητηογο nona npononxaeTca npnflanbueňmeM HarpeBe po TeMnepaTypw H3OTepMHqecxoň BwnepxKH, npn H3OTepMHqecxoňBbiflepjKKe n nocnenywmeM oxnaxneHHH po TeMnepaTypw 200-300°C. B TaBjmue npHBenenw φΗ3Ηκο—MexaHHqecxHe CBoňcTBa CTaneň nocne o6pa6oTXH nxno H3BecTHOMy n npeflJiaraeMoMy cnocoSaM npn TeMnepaType 570+ 5°C c npononxHTenb-HocTbio 1 qac.nightTaBnennaH uenn nightTnraerca Tew, me HacMmerae noTane Bep, eTCfi b cxpenjeH-HtlX HarHHTHbiX nojinx. flpyroe OT.nHHH6 COCTOHT B TOMj HTO npHMeHHeMbie nOJIH NIGHT-TOHHHbie. HcnoJ7b3OBaime cxpemeHHbrx μβγηητηηχ nonene NPH 33οτηροβ3ημμ no3BOHneTHšMeiiHTb chmmgtphio nona xpHCTannHnecxoň peuieTKH o6pa6aTbiBaeMoro MeTanna TaxiiM 251205 2 θ6ρ33ΟΜ WTO ΠρΟΤεΚβΗΗβ η, ηφφγ3ΗΟΗΗ5ΙΧ npopeCCOB, oSyCJIOBJíeHHMX 3.rieKTpOHHMM B3-HMOfleňCTBHeM ,. KBaHTyroTCH b flByx HanpaBneHHHX (HanpaBjíeHnn 3aHax> Tca BexTopaMHHanpH »eHHocTH CKpemeHiibix do not change). TaxnM o6pa3OM, H3MeHeHHbiň xapaxTep αηΦΦυ3Ηοη-Htix npopeccoB o6pa3yK h) mnxca NPN btom xhmitockhx CBH3eň πρηβο, πητ He tojibxo kHHTeHCtiáHKanHH npopecca aaorapoBaHHH him hk ynynuieHmo cnyxefiHbix xapaxTepncTnx'fleTaneň (noBepxHocTHan TBepnocTb, npoqnocTB, H3Hoc.ocToňKocTb, MartinTHaa HHflyx-u, hh CoppoHOHHaa CToKocTb h Tax aanee). IIpHMeHeHHe ποογοηηημχ nonene πρηβοπητ to H3MeHeHHK> 3Hepran axTHBanHH penaxca-u, aa hh aTOMOB a3OTa CNET Bxnana aHeprHH μηγηητηογο nona, a hundred ofiecneuHBaeT hh-τβΗϋΗφΗίορΗΐο nponecca HacbnueHHH CTann a3OTOM η ycTaHoBJíenne onpeneneHHoro nnHa-MHuecKoro paBHOBecHH Mexny BO3MOXHbiMH nojio? KeHHHMH aTOMOB a3OTa b KpncTajinnqec- Horse pemeTKe. IIpHMep. Π 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 ann ann ann ann ann ann ann ann ann ann ann fleTann noMemaioT b Μγφβη Β nn, HarpeBaioT b Hacbituaromeň aTMocjJiepe noTeMnepaTypw H3OTepMHqecxoň BbmepxKH. npn nocTHxerthH TeMnepaTypw b nn450-570 C b paCoMeM npocTpaHCTBe co3flaeTca cxpemeHHoe nocTOHHHoe μπγηητ * -Hoe none. Bo3fleCtBn cxpetneHHoro ποοτοηηηογο μπγηητηογο nona npononxaeTca npnflanbmeinme HarpeBe after TeMnepaTypw H3OTepMHqecxoň BwnepxKH, npn H3OTepMHqecxoňBbiflepjKKe n nocnmew oxnaxneHHH after TeMnepaTypw 200-300 ° C. B TaBjmue npHBenenw φΗ3Ηκο — MexaHHqecxHe CBoCtBa CTaneň nocne o6pa6oTXH nxno H3BecTHOMy n npeflJiaraeMoMy cnocoSaM npn TeMnepaType 570 ° 5 ° C c npononxHTenb-HocTbio 1 qac.

Kax BHflHo H3 Taójwubi, o6pa6oTKa b cxpemeHHbix nonax πο3Βοηπετ ycKopnTb npo-necc o6pa6oTKn b 1,5-2 pa3a, a Taxxe ynyqniHTb φη3Ηχο-Μεχ3ΗΗηθεκηθ CBoňcTBa 06-; paOaTbiBaeMwx CTaneň, a HMeHHo: npoqHocTHwe b 1,5 pa3a, μηγήητημθ b 4-4,5 pasa.XpynxocTb πηφφγ3ηοηηογο cjioH no mxane BHAM cocTaBnaeT 1 6ann (Hexpynxne).Kax BHflHo H3 Taójwubi, o6pa6oTKa b cxpemeHHbix nonax πο3Βοηπετ ycKopnTb npo-necc o6pa6oTKn b 1,5-2 pa3a; paOaTbiBaeMwx CTaneň, and HMeHHo: npoqHocTHwe b 1.5 pa3a, μηγήητημθ b 4-4.5 pasa.XpynxocTb πηφφγ3ηοηηογο cjioH no mxane BHAM cocTaBnaeT 1 6ann (Hexpynxne).

• ΦΟΡΜΥΟΑ H30BPETEHHP• HΑ H30BPETEHHP

CnocoG ra3OBoro 83οτηροβ3Ηηβ cTanbHbix neTaneň, BxmoqaramHň HarpeB no TeMnepa-Typw nacbHneHHH n Bwnepxxy npn 3Toň TeMnepaType c nanoxenneM μηγήμτηοιό nona, οι;·OTJiHMaKHunťiča τθμ, ητο, c nenbio ynyqmeHHH cnyxe6Hbix xapaxTepncTnx o6pa6aTbiBaeMbixineTaneň η ΗΗτβΗοηφΗχβηΗΗ nponecca HacwmeHnn, Bbinepxxy ocymecTBJunoT b cxpemeHHOM*nOCTOHHHOM Μ3ΓΗΗΤΗ0Μ none.CnocoG ra3OBoro 83οτηροβ3Ηηβ cTanbHbix neTaneň, BxmoqaramHň HarpeB no TeMnepa-Typw nacbHneHHH n Bwnepxxy NPN 3ton TeMnepaType c nanoxenneM μηγήμτηοιό Nona οι; · OTJiHMaKHunťiča τθμ, ητο c nenbio ynyqmeHHH cnyxe6Hbix xapaxTepncTnx o6pa6aTbiBaeMbixineTaneň η ΗΗτβΗοηφΗχβηΗΗ nponecca HacwmeHnn, Bbinepxxy ocymecTBJunoT b cxpemeHHOM * nOCTOHHHOM Μ3ΓΗΗΤΗ0Μ none .

Hctohhhkh ΗΗφορΜΗρηη, npHHHTbie Bo BHHMaHne npn 3xcnepTH3e: 1, Πβτβκτ Ηποηηη C 23 C 11/00, S4 53-19251, 1976. 2. ABTopcxoe CBHneTenbCTBo CCCP IP 576351, C 23 C 9/14, 1974. AHHOTAUHfl H3o6peTeHHe othochtch k nponeccaM 83οτηροβ3Ηηη neTaneň πρηδοροΒ, arperaTOBn ManraH. CymHocTb H3o6peTeHHH coctoht b tom, mto npopecc HacbnueHHH neTaneň ee-Αγτ b cxpemeHHOM ποοτοηηηομ MarMHTHoM none. 3to no3BonaeT ηητ6ηοηΦηη;ηροβ3τβ npo-necc a3oTnpoBaHHB « noBWCHTb cnyxefiHwe xapaKTepncTnxn. Πρη3Η3Η0 Η3ο6ρβτβΗΗβΜ no peayňbTaTaM axcnepTHSbi, ocymecTBneHHoň rocynapcTBeHHWMΚομητθτομ CCCP no nenaM naoSpeTeHnň n oTxpwTnň. · 251205 3Hctohhhkh pφορΜΗρηη, npHHbbie Bo BHHMaHne npn 3xcnepTH3e: 1, Cποηηη C 23 C 11/00, S4 53-19251, 1976. neTaneň πρηδοροΒ, arperaTOBn ManraH. CymHocTb H3o6peTeHHH coctoht b tom, mto npopecc HacbnueHHH neTaneň ee-Αγτ b cxpemeHHOM ποοτοηηηομ MarMHTHoM none. 3to no3BonaeT ηητ6ηοηΦηη; ηροβ3τβ npo-necc a3oTnpoBaHHB «noBWCHTb cnyxefiHwe xapaKTepncTnxn. CP η Η Η ο ο ο ο ο p ο CP CP CP CP CP CP CP CP CP CP CP CP CP CP CP CP CP CP CP CP CP CP CP CP CP CP CP CP CP CP CP CP CP CP CP CP CP CP. 251205 3

Cnoco6 o6pa- 6otkh 1 Mapxa cTaiiH '_____1™«.——1 L— ---—-1--------.—' ------- í>H3HKO~MeXaHHMeCKHe CBOHCTBa rny6n- H3 C.TtOH , MM noBepx- HOCTHaS TBep-flOCTh Hκγ/μμ2 npOHHOCTb B κγ/μμ2 KOPPO3H- ΟΗΗβΗ croňKoCTb b 6an.no- Hax no TOCT 13819-68 Mar-HHTHaH hhavkuhb B, , re 8 «o® »rc H3BecT- sneKTpo- 0,38 200-250 34,2 1-2 600-800 17800-18000 Hbití ŤexHH- cnoco6 qecKaa o6pa- 6otkh οπβκτρο- TexHMMec“ xan κορ- pO3HO«H0“ CToňxaB 0,063 1200-1400 37,1 2 1500 14200 Hepxaaeio- tqaa 0,035 1300-1350 59,5 2-3 - - ' KoHcTpyK- UHOHHafl 0,1-0,15 1200 110 2 - Ilpefljia- 3Πβκτρο- 0,5-0,53 350-400 36,8 1 2800 20100 raei^brií ΤβΧΗΗ- cnoco6 yecxafl 33OTU— poBa- 3JieKTpo- 0,121 930-960 50,4 1 3700 15800 HHH B ΤβΧΗΗ- ποοτο- MeGxaa JlHHbDC KOppOSH“ ΟΚρβΕξβΗ “ÓHHO~ HHX Mař -cToílKaa HHTHblX ΠΟΒΗΧ HepxaBe- 0,1 1000-1100 63,1 1-2 - - Hanpn- xeH- wmaH HOCTblO KOHCT- .200 i pyKpH- 20 3PCT. oHHan 0,28-0,3 950-1050 118 1 251205Cnoco6 o6pa- 6otkh 1 Mapxa cTaiiH '_____ 1 ™ «.——————————————————————————————————————————————————————————————————————————— H3HKO ~ MeXaHHMeCKHe CBOHCTBa rny6n- H3 C.TtOH, MM noBepx- HOCTHaS TBep-flOCTh Hκγ / μμ2 npOHHOCTb B κγ / μμ2 KOPPO3H- ΟΗΗβΗ cronKoCTb b 6an.no- Hax no TOCT 13819-68 Mar-HHTHaH hhavkuhb B,, re 8 «o®» rc H3BecT- sneKTpo- 0,38 200-250 34,2 1-2 600-800 17800-18000 Hbity «exHH- cnoco6 qecKaa o6pa- 6otkh οπβκτρο- TexHMMec“ xan κορ- pO3HO «H0” CToňnxaB 0,063 1200-1400 37,1 2 1500 14200 Hepxaaeio-tqaa 0,035 1300-1350 59,5 2-3 - - 'KoHcTpyK- UHOHHafl 0,1-0,15 1200 110 2 - Ilpefljia- 3Πβκτρο- 0,5-0,53 350-400 36,8 1 2800 20100 eiβΧΗΗ- cnoco6 yecxafl 33OTU— BβΧΗΗ- cnoco6 0,121 930-960 50,4 1 3700 15800 HHH B ΤβΧΗΗ- ποοτο- MeGxaa JlHHbDC KOppOSH HTρβΕξβΗ ÓHHO ~ HHX 1100 63.1 1-2 - - Hanpn- xeH- wmaH HOCTblO KOHCT- .200 i pyKpH- 20 3PCT. oHHan 0.28-0.3 950-1050 118 1 251205

Claims (1)

- 4 - PfiEDMfiT vynálezu Způsob nitridace ocelových součástí v plynném prost-ředí, zahrnující ohřev na teplotu nasyceni a prodlevu přitéto teplotě za spolupůsobení magnetického pole, vyznačujícíse tim, že pro zlepšení pracovních charakteristik zpracová-vaných součástí a intenzifikace procesu nasycení probíhá přodleva ve kříženém stejnosměrném magnetickém poli· '251205DETAILED DESCRIPTION OF THE INVENTION A method for nitriding gaseous steel components comprising heating to a saturation temperature and a dwell time at a temperature in conjunction with a magnetic field, characterized in that in order to improve the working characteristics of the workpieces and intensify the saturation process, the cross-linked DC takes place. magnetic field · 251205
CS450681A 1981-06-15 1981-06-15 Method of steel components nitridation CS251205B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CS450681A CS251205B1 (en) 1981-06-15 1981-06-15 Method of steel components nitridation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS450681A CS251205B1 (en) 1981-06-15 1981-06-15 Method of steel components nitridation

Publications (1)

Publication Number Publication Date
CS251205B1 true CS251205B1 (en) 1987-06-11

Family

ID=5387954

Family Applications (1)

Application Number Title Priority Date Filing Date
CS450681A CS251205B1 (en) 1981-06-15 1981-06-15 Method of steel components nitridation

Country Status (1)

Country Link
CS (1) CS251205B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ303768B6 (en) * 2012-02-01 2013-04-24 Comtes Fht A.S. Chemical heat-treating process of cutting-tool steel by making use of nitridation
CZ303769B6 (en) * 2012-02-01 2013-04-24 Comtes Fht A.S. Chemical heat-treating process of cutting-tool steels by making use of nitridation and oxidation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ303768B6 (en) * 2012-02-01 2013-04-24 Comtes Fht A.S. Chemical heat-treating process of cutting-tool steel by making use of nitridation
CZ303769B6 (en) * 2012-02-01 2013-04-24 Comtes Fht A.S. Chemical heat-treating process of cutting-tool steels by making use of nitridation and oxidation

Similar Documents

Publication Publication Date Title
HK1107080A1 (en) Process for recovering organic compounds from aqueous streams containing same
WO2005074608A3 (en) Permanent magnet assembly
WO2005024857A3 (en) Permanent magnet assembly
WO2005013087A3 (en) Strategies for processing image information using a color information data structure
DK1281790T3 (en) Vapor phase corrosion inhibitors and methods for their preparation
CS251205B1 (en) Method of steel components nitridation
DE69320084D1 (en) Process for the production of R-Fe-B permanent magnets
ATE6925T1 (en) METHOD OF PURIFICATION OF SOLUTIONS CONTAINING GALLIUM.
GB1163540A (en) Stabilisation of Phenols
DK0678501T3 (en) Process for the preparation of N-chloro-acetylglutamine.
JPS55122823A (en) Manufacture of anisotropic fe-cr-co type magnet alloy
EP0348038A3 (en) Manufacturing method of a permanent magnet
Jing et al. Extraction of praseodymium (Ⅲ) and neodymium (Ⅲ) in saponified P507-HCl-kerosene system
ATE155551T1 (en) PUMP FOR DELIVERING LIQUIDS
ATE150598T1 (en) SIMPLIFIED DRIVER FOR FERRITE PHASE SHIFTER WITH CONTROLLED FLOW
JPS57128911A (en) Magnetic film for magnetic bubble memory
JPS6418600A (en) Flux for soldering
JPS56159960A (en) Controlling device for brushless motor
RU1836502C (en) Domain-containing magneto-optical garnet structure single crystal
JPS55129215A (en) Composition for oral cavity
SU1460750A1 (en) Method of magnetizing permanent magnets
SU1156151A1 (en) Alloy for permanent magnets
GB958235A (en) Electromagnetic switching device
CA2046275A1 (en) Optical isolator and method for assembling same
Deryagin et al. Electrical Resistance of Rare-Earth Intermetallic Compounds R sub 3 Co During Metamagnetic Phase Transitions