High gudun karfe. Da kaddarorin da kuma rarrabuwa

Yau, high-gudun karfe ci gaba da zama cikin manyan littattafai don samar da daban-daban karfe nozzles da wani sabon kayan aiki. Irin wannan gami ake akai-akai amfani a yi na na'ura saws, drills, kuma drills aiki kawunansu. Duk da bayyana yanzu fadi da dama, daga dukan nau'i na cemented carbide da yumbu kumshin kayan samar ma fi girma aiki yi, high-gudun kayan aiki steels da tabbaci rike da matsayi.

A tartsatsi amfani da irin wannan gami da samar da hadaddun-yankan kayan aikin saboda a hade a wadda high ƙarfi (har zuwa 68 HRC) da kuma thermal kwanciyar hankali (ba su rasa su aiki Properties ko a zazzabi na 650 ° C) da high danko darajar, yanzu wucewa cewa na ga carbide kumshin kayan . Bugu da ƙari, high-gudun karfe yana da musamman high adaptability, wanda ke nufin kyau Sannan ina da sabon tsari matsa lamba.

Abin da kaddarorin zai yi irin wannan gami shi ne dogara a kan alloying abubuwa. Yawanci, high-gudun karfe ne a multicomponent tsarin dauke da chromium, molybdenum, tungsten, cobalt, kuma vanadium. A gaban da daban-daban aka gyara, kazalika da abun ciki a cikin kaso sharuddan nuna a cikin lakabtawa. Letter P a cikin wancan, yana nufin cewa karfe ne a high gudun, da m yawan nuna tungsten abun ciki a cikin kaso. Bugu da ari haruffa nuna a fakaice gaban sauran alloying abubuwa, da kuma lambobin zuwa bayan da haruffa - su kashi nauyi sulusi da murabba'i a cikin gami. Saboda haka, harafin M nuna gaban molybdenum a cikin tsarin, F - vanadium K - cobalt, A - nitrogen.

Bisa ga abun ciki na dopants gudun karfe iya kasu tungsten, molybdenum, tungsten da molybdenum. A musamman kungiyar kasaftawa karafa alloyed da cobalt. Irin wannan gami yawanci amfani a yi na kayayyakin aiki, don machining wuya sassa na superalloys. High gudun karfe, gami vanadium da aka yafi yi nufi ga samar da kayayyakin aiki da ake kira "karewa" kare - broaches, reamers da sauran.

The fi na kowa, kuma mai yiwuwa mafi tsufa iri na high-gudun karfe P18 da ake amfani da yi hadaddun siffa da Threading kayan aikin. Yana nufin misali form don high quality aiki daga karfe ake yi mafi yawa na P9 iri gami. Daga shi aikata Mills, masu saro da kuma kama.

By aiki da zazzabi tsarin mulki gudun steels ya kasu kashi uku: gami da al'ada, high, da kuma high zafi juriya. Don na farko da kungiyar ne tungsten (R18, R9) da tungsten-molybdenum (R6M5). Wadannan alamomi ake amfani a cikin aiki da ba ferrous karafa, tsarin steels da kuma jefa baƙin ƙarfe.

Domin kayan da biyu category halin da sosai babban abun ciki na cobalt, vanadium da carbon. Mafi mashahuri iri a cikin kungiyar - R6M5F3. Vanadium karfe halin high lalacewa juriya. Su ne kawai tsanani drawback - bad sanding, saboda taurin vanadium carbides ba na baya zuwa irin wannan nuna alama elektrokorundovogo nika dabaran.

A karshe, cikin uku category na karfe halin da low yawan carbon abun ciki, samar da su su dace da magani daga zafi-resistant, bakin karfe da kuma titanium gami. Wani halayyar alama na su - a manyan yawan alloying abubuwa. Don wannan kungiya sun hada da irin brands kamar yadda 3V20K20H4F, V11M7K23 et al.