Maganin zafi na sama ya kasu kashi biyu: ɗaya shine quenching na sama da kuma maganin zafi, ɗayan kuma maganin zafi na sinadarai.Hanyar gwajin taurin shine kamar haka:
1. na waje quenching da tempering zafi magani
quenching na sama da yanayin zafi yawanci ana yin su ta hanyar dumama shigar da wuta ko dumama harshen wuta.Babban ma'auni na fasaha sune taurin sama, taurin gida da ingantaccen zurfin Layer.Za a iya amfani da ma'aunin taurin Vickers ko Rockwell hardness tester don gwajin taurin.Ƙarfin gwaji Zaɓin yana da alaƙa da zurfin ingantacciyar tauri mai ƙarfi da taurin saman kayan aiki.Akwai injunan tauri guda uku a nan.
(1) The Vickers hardness tester hanya ce mai mahimmanci don gwada taurin sama na kayan aikin da aka yi wa zafi.Yana iya amfani da ƙarfin gwaji na 0.5-100KG don gwada ƙwanƙwasa na zahiri kamar bakin ciki kamar kauri 0.05mm.Daidaiton sa yana da girma kuma yana iya bambanta kayan aikin da aka yi da zafi.Bambanci kaɗan a cikin taurin sama, ban da haka, ana gano zurfin ingantaccen Layer mai ƙarfi kuma ana gano shi ta mai gwajin taurin Vickers, don haka dole ne a ba da gwajin taurin Vickers don raka'a waɗanda ke aiwatar da sarrafa yanayin zafi na zahiri ko amfani da adadi mai yawa. na waje zafi magani workpieces.
(2) Gwajin taurin Rockwell na sama shima ya dace sosai don gwada taurin kayan aikin da aka kashe.Akwai ma'auni guda uku don na'urar gwajin taurin Rockwell don zaɓar daga.Yana iya gwada nau'ikan nau'ikan kayan aiki na zahiri waɗanda zurfin zurfin Layer mai ƙarfi ya wuce 0.1mm.Kodayake daidaiton na'urar gwajin taurin Rockwell na sama bai kai na na'urar gwajin taurin Vickers ba, ya riga ya iya biyan buƙatun azaman hanyar ganowa don kulawa da inganci da kuma gwajin cancantar tsire-tsire masu zafi..Bayan haka, yana da halaye na aiki mai sauƙi, amfani mai dacewa, ƙarancin farashi, saurin ma'auni, da karatun kai tsaye na ƙimar taurin.Za a iya amfani da na'urar gwajin taurin Rockwell don gano batches na kayan aikin da aka yi da zafi da sauri da sauri kuma ba tare da lalacewa ba.Yana da matukar muhimmanci ga masana'antun sarrafa karafa da injina.Lokacin da ƙorafin zafi na sama ya yi kauri, ana iya amfani da gwajin taurin Rockwell.Lokacin kauri mai kauri na maganin zafi shine 0.4-0.8mm, ana iya amfani da sikelin HRA.Lokacin da zurfin Layer mai tauri Lokacin da ya wuce 0.8mm, ana iya amfani da sikelin HRC.Vickers, Rockwell da Rockwell na sama na sama suna iya jujjuya daidaitattun daidaitattun ƙima guda uku cikin sauƙi cikin juna, canzawa zuwa ma'auni, zane ko ƙimar taurin da masu amfani ke buƙata, kuma madaidaicin tebur ɗin juyawa yana cikin daidaitattun ISO na duniya.An ba da ma'aunin ASTM na Amurka da ma'aunin GB/T na kasar Sin.
(3) Lokacin da kauri mai tauri mai zafi ya kai sama da 0.2mm, ana iya amfani da gwajin taurin Leeb, amma ana buƙatar zaɓar firikwensin nau'in C.Lokacin aunawa, ya kamata a biya hankali ga ƙarewar zahiri da kuma kauri gabaɗaya na kayan aikin.Wannan hanyar auna ba ta da Vickers da Rockwell Mai gwada taurin kai daidai ne, amma ya dace da auna wurin a masana'anta.
2 maganin zafi na sinadarai
Chemical zafi jiyya shi ne infiltrate na sama na workpiece da zarra na daya ko da dama sinadaran abubuwa, game da shi canza sinadaran abun da ke ciki, tsari da kuma yi na sama na workpiece.Bayan quenching da ƙananan zafin jiki tempering, na sama na workpiece yana da high taurin da sa juriya.da kuma tuntuɓar ƙarfin gajiya, kuma ainihin kayan aikin yana da ƙarfi da ƙarfi.Babban ma'auni na fasaha na aikin aikin aikin zafi na sinadarai shine zurfin daɗaɗɗen Layer da taurin sama.Nisan da taurin ya ragu zuwa 50HRC shine ingantaccen zurfin Layer.Gwajin taurin sama na kayan aikin zafi da aka bi da su yayi kama da gwajin taurin na kayan aikin da aka kashe zafi.Ana iya amfani da masu gwajin taurin Vickers, na'urar gwajin taurin Rockwell na sama ko na Rockwell.Gwajin taurin don ganowa, kawai kauri na nitriding mai kauri ya fi sirara, gabaɗaya bai wuce 0.7mm ba, sannan ba za a iya amfani da gwajin taurin Rockwell ba.
3. maganin zafi na gida
Idan gida zafi jiyya sassa na bukatar high gida taurin, gida quenching zafi magani za a iya za'ayi ta wajen shigar dumama, da dai sauransu Irin wannan sassa yawanci bukatar alama matsayi na gida quenching zafi magani da gida taurin darajar a kan zane, da taurin. gwajin sassa ya kamata a gudanar da shi a cikin yankin da aka keɓe, kayan aikin gwajin taurin na iya amfani da na'urar gwajin taurin Rockwell don gwada ƙimar taurin HRC.Idan tauraruwar zafin zafi ba ta da zurfi, ana iya amfani da na'urar gwajin taurin Rockwell na sama don gwada ƙimar taurin HRN.
Lokacin aikawa: Agusta-16-2023
