PL803B1 - High speed tool steel. - Google Patents

High speed tool steel. Download PDF

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Publication number
PL803B1
PL803B1 PL803A PL80320A PL803B1 PL 803 B1 PL803 B1 PL 803B1 PL 803 A PL803 A PL 803A PL 80320 A PL80320 A PL 80320A PL 803 B1 PL803 B1 PL 803B1
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PL
Poland
Prior art keywords
cobalt
molybdenum
steel
tool steel
amount
Prior art date
Application number
PL803A
Other languages
Polish (pl)
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Publication date
Application filed filed Critical
Publication of PL803B1 publication Critical patent/PL803B1/en

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Description

KI. rfrtaTo. ko u V.Wynalazek niniejszy dotyczy szybkotna¬ cej "Sltaili narzedziowej, w "której pieirwoitny stiop zelaiznio^tiiirigsiteinio^cihrioiniioiwy jeisrt zasta¬ piony pirzoz stop zeilaJzino-mioliMeoo-ctoroimo- wy. Wynalazek ma na celu sifaworizienie udo- skonalomej oJdmiainy tegoi rodzaju sitalii bar¬ dziej jednolitej, nawet w wypadku wytwa- rzania w duzych brylach, niiz piroduikowalna dotychczas byla szybkotnaca stal molibdeimo- cbriomiowa.Szybkotnaca] stal molibdeno - chromiowa typu, którego dotyczy niniejszy wynalazek, zawiera od 4% do 10°/0 molibdenu i od 2% do 6°/0 chromu, jiako zasadniczych skladni- ków, polaczonych z zelazeni. Proponowano dodafwac a!z do 2% wam&dhi no-chromowej, zarówno jak i olbiiiiza^c ilosc wanadu i dodawac kobaltu do 3,5°/0. Wsze¬ lako wyniki, osiagniete podolbnemi gatun¬ kami szybkoitnacej s.itali moliibdeno-cbromo- wej w ogólnej praktyce nawet z dodatkiem wanadu lub kobaltu w ilosciach powyzej za- zmaicizonych, nie .daja rezultatów zadawala¬ jacych, okazalo sie bowiem, ze osiagane ta droga gatunki sitali sa mierne i zmienne co do wynikówkrajania, tudziez zuzywaja sie szybko podczas pracy tak, iz obecnie jest wytwarzana tylko, bardzo maila, ilosc tego rodzaju sitali w porównaniu z, sizybkotinacemi. gatunkami tungsteino-ohiromowemi.Wynalazca wykryl, ze przez dodanie do znanej stali szyibkotoaoej molJbdeno-chromo- wej conajmniej 4% kobaltu i przez ogólna zmiane ilosci kobaltu, w stosunku do ilosci molibdenu, oitrzymuje sie wielce udoskona¬ lona stal, która jesit nietylklo jeidnloliltai, lecz calkiem równa odmianom sitali szybkotnacej tungsteno-chromowej, znanym w handlu piodiiaEiwa stali nadzwyczaj ^zyibkoitlnacej, wi- dloctzmie dzieki temu, ze kobalt, dodamy w po¬ wyzszej ilasci, dziada jajko staibilizajtor.Zgodnie z niniejisizym wynalaizlkieim, udo¬ skonalona stal sizybkóitmaica', <)tey|miuje sie pirzeiz dodatnie dio TOporailiainej wyzej znamej podstawy zelamo^moMbdeno^chriomioweij!, CK)L naijminiej 4% kobaltu, i praez ogólna ziniaLne ilosci kobaltu w stosunku do ilosci nMibde- nu? t. j. gdy zaiwartosc miolibdeinu podnosi¬ my pomajd 4%, ilosc kobaltu rówlniiez nalezy powiekszyc. " * " W powyzszych znanych gaituinlkach stali szybkotnacej móMbdmo-chramioiwej zawar¬ tosc wegla wahaJ sie pospolicie poimiedlzy 0,5% a 0,8%, molibdenu pomiedzy 4% aj 10°/o i chromu poimiedlzy 2% a 6°/0. Niniejszy wy¬ nalazek znacznie udoskonala i ujedintostaj- niia tein rodziaj stali przeiz dodalnie conajmmiej 4°/o do^ 9°/0 kobaltu, zaile&nie od zawai-tosci molibdenu. Nizej wstoajzainy jest typowy sklad! pTócelnltowy isltal 'Sizyibkioltinacej: wegla .... 0,6% molibdenu . . 6,0% chromu . . . 4,0% kobaltu . . . 6,0% Pozostalosc staJnK)wi glóiwnie, j|a|k zwykle zelaizio. ' W pewnych raizaich moizmaj dddac nie^ znaczna ilosc wiataadlu, tytajnu lub urateiu. PL PLKI. rfrtaTo. Col. V. The present invention relates to a high-speed "tool sling" in which the primeval stiop of the iron-like steel and the grain is replaced by the feather-like alloy of the Jzino-MioliMeoo-ctoroim. The aim of the invention is to make a more uniform, even in the case of production in large lumps, more uniform, even in the case of production in large lumps, than the high-speed molybdenum cbriomy steel that has been previously pyoductized. it contains from 4% to 10% molybdenum and from 2% to 6% / 0 chromium, as essential constituents, combined with irons. It has been proposed to add up to 2% w / dhi no-chromium, as well as to increase the amount of vanadium and add cobalt to 3.5 ° / 0. All the results, achieved with the low-speed species of molybdenum-cbromite vitality in general practice, even with the addition of vanadium or cobalt in more than amalgamated amounts, do not give satisfactory results, because it turned out that the achieved results road species of sitala are mediocre and variable in cutting results, and wear out quickly during operation, so that currently only, very e-mail is produced, the amount of this type of sitala compared to sluggish cutting. The inventor discovered that by adding a molybdenum-chromium molybdenum steel of at least 4% of cobalt to a known quilted steel, and by changing the cobalt amount in relation to the molybdenum amount, a highly refined yellow steel, which is black, is obtained but quite equal to the varieties of the high-speed tungsten-chromium sieve, known in the market of pyodiiaEiwa for extra-soft-bonding steel, it will be seen thanks to the fact that cobalt is added in the above amount, the grandfather egg staibilizajtor. , <) tey | passes the positive headings on TOporailiain the above-mentioned base zelamo ^ moMbdeno ^ chriomioweij !, CK) L at least 4% cobalt, and almost the total green amount of cobalt in relation to the amount of nMibdenum? i.e. when the miolybdeine content is increased by 2%, the amount of cobalt should also be increased. "*" In the above known high-speed steel grades, the carbon content commonly varies between 0.5% and 0.8%, molybdenum between 4% and 10% and chromium between 2% and 6%. The present invention greatly improves and unifies the steel grade from additionally at least 4% to 9% cobalt, depending on the molybdenum content. The lower you get up is a typical composition! pTócelnltowy isltal 'Sizyibkioltinacej: carbon .... 0.6% molybdenum. . 6.0% chromium. . . 4.0% cobalt. . . 6.0% The remainder of the stagnants) and mainly, the j | a | k usually iron. 'In some raizaich they may give a not significant amount of light, taylane or urate. PL PL

Claims (2)

1. Zastrzezenia patentowe. 1. Stal narzedziowa szybkotnaca, izaiwie- raijaca 4—10% miolibdenu i 2—6°/0 chiroimu, tern znaimieinmia, ze izlalwieo taikzc 4—10% fcobaltti, odpowiednio do ilosci iziniajjldujaceigo sie w stopie miolibdtenu.1. Patent claims. 1. High-speed tool steel, water resistant to 4-10% miolybdenum and 2-6% chiroime, this is known to say that almost 4-10% fcobaltti, depending on the amount of melybdenum in the melt. 2. Stal nairzedlzilowa sfcybkotinacia uniojib- denonchriomowa wedlug zaisttfztelzettiiaJ 1, teim zniaimlieminai, ze zawiera wegla 0,6%, molib¬ denu 6%, chromu 4% i kobailtu 6°/0. Patii Richard Kuehnrich. Zastepca: M. S k r z y p k o w & k i, rzecznik patentowy. ZAK«.GMF.K0ZIAtiSKICH W KIAKUHE PL PL2. The carbon steel of the uniojib-denonchriomic displacement according to zaisttfztelzettiiaJ 1, teim zniaimlieminai, that it contains carbon 0.6%, molybdenum 6%, chromium 4% and cobalt 6 ° / 0. Patii Richard Kuehnrich. Zastepca: M. S k r z y p k o w & k i, patent attorney. ZAK «.GMF.K0ZIAtiSKI IN KIAKUHE PL PL
PL803A 1920-08-05 High speed tool steel. PL803B1 (en)

Publications (1)

Publication Number Publication Date
PL803B1 true PL803B1 (en) 1924-11-29

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