Automobile daidaici haske tube factory
Madaidaicin bututu mai haske nau'in nau'in bututun ƙarfe ne mai inganci bayan zane mai kyau ko mirgina sanyi. Saboda babu wani Layer na oxide a kan bangon ciki da na waje na madaidaicin bututu mai haske, babu zubar da ruwa a karkashin babban matsin lamba, babban madaidaici, babban ƙarewa, babu nakasawa a cikin lanƙwasawa mai sanyi, flaring, flattening kuma babu fasa, ana amfani dashi galibi don samar da samfuran. na huhu ko na'ura mai aiki da karfin ruwa, kamar iska Silinda ko man silinda, wanda zai iya zama maras sumul bututu ko welded bututu. Abubuwan sinadaran na madaidaicin bututu mai haske sun haɗa da carbon C, silicon Si, manganese Mn, sulfur s, phosphorus P da chromium CR. High quality carbon karfe, gama mirgina, non oxidizing haske zafi magani (NBK jihar), nodestructive gwaji, brushing da high-matsi wanka na karfe bututu ciki bango tare da na musamman kayan aiki, antirust magani da antirust man a kan karfe bututu, da ƙura mai hana ruwa jiyya tare da murfi. a duka biyun. Ganuwar ciki da waje na bututun ƙarfe suna da madaidaicin madaidaici kuma babban ƙarewa. Bayan maganin zafi, bututun ƙarfe ba shi da oxide Layer da babban tsabta na bangon ciki. Bututun ƙarfe yana ɗaukar babban matsin lamba, baya lalacewa yayin lanƙwasawa mai sanyi, kuma ba shi da fasa yayin walƙiya da lallashi. Ana iya sarrafa madaidaicin bututun ƙarfe don haɗaɗɗun nakasu da machining daban-daban. Launin bututun ƙarfe: fari tare da haske, tare da luster mai ƙarfe. Motoci da na'urorin haɗi suna da manyan buƙatu don daidaito da ƙarewar bututun ƙarfe. Madaidaicin masu amfani da bututun ƙarfe ba kawai masu amfani da manyan buƙatu don daidaito da gamawa ba. Saboda madaidaicin bututu mai haske yana da madaidaicin madaidaici kuma ana iya kiyaye juriya a wayoyi 2-8, yawancin masu amfani da mashin ɗin suna canza bututun ƙarfe marasa ƙarfi a hankali ko zagaye karfe zuwa daidaitaccen bututu mai haske don ceton aiki, abu da asarar lokaci.
Ana samun tsarin martensite ta hanyar kashe madaidaicin bututu mai haske da zafin jiki a cikin kewayon zafin jiki na 450 ~ 600 ℃; Ko bayan tempering a 650 ℃, wuce ta 350 ~ 600 ℃ a jinkirin sanyaya kudi; Ko bayan tempering a 650 ℃ da dumama na dogon lokaci a cikin zafin jiki kewayon 350 ~ 650 ℃, da madaidaicin haske tube zai samar da embrittlement. Idan embrittled 20 # daidai karfe tube aka reheated zuwa 650 ℃ sa'an nan sanyaya da sauri, da taurin za a iya mayar. Saboda haka, ana kuma kiransa% 26ldquo; Ragewar fushi mai jujjuyawa%26rdquo; Ƙarƙashin zafin jiki na zafin jiki yana nuna haɓakar ƙarfin jujjuyawar yanayin zafi na ainihin bututu mai haske. High zafin jiki tempering brittleness. An ƙayyade hankali gabaɗaya ta hanyar bambance-bambancen tsakanin zafin jiki na ductile gaggautsa a cikin tauri jihar da gaggautsa jihar (% 26delta; T) Don nunawa. Mafi tsanani ga brittleness na high zafin jiki tempering, mafi girma da rabo daga intergranular karaya a kan karaya na daidai haske bututu.
A sakamakon abubuwa a kan high zafin jiki tempering brittleness a daidai haske bututu sun kasu kashi: (1) najasa abubuwa haddasa high zafin jiki tempering brittleness na madaidaicin bututu mai haske, irin su phosphorus, tin, antimony, da dai sauransu (2) Alloy abubuwan da inganta ko jinkirin. saukar da brittleness na high zafin jiki tempering a daban-daban siffofin da kuma digiri. Chromium, manganese, nickel da silicon suna taka rawar haɓaka, yayin da molybdenum, tungsten da titanium ke taka rawar jinkiri. Carbon kuma yana taka rawar gani. Gabaɗaya madaidaicin carbon bututu masu haske ba sa karyewa zuwa matsanancin zafin jiki. Ƙarfe na binary ko multicomponent gami da ke ɗauke da chromium, manganese, nickel da silicon yana da hankali sosai, kuma hankalinsa ya bambanta bisa ga nau'i da abun ciki na abubuwan gami.
Da ji na asali tsarin da tempered madaidaicin haske bututu zuwa high zafin jiki tempering brittleness na karfe ne muhimmanci daban-daban. Tsarin yanayin zafi mai zafi na Martensite ya fi kula da matsanancin zafin zafin zafin jiki, bainite babban yanayin zafin jiki shine na biyu, kuma tsarin pearlite shine mafi ƙanƙanta.
Mahimmancin zafin jiki mai zafi na madaidaicin bututu mai haske gabaɗaya ana ɗaukar shi azaman sakamakon rarrabuwar abubuwa masu ƙazanta kamar su phosphorus, tin, antimony da arsenic a ainihin iyakar hatsin austenite, wanda ke haifar da ƙwanƙwasa iyakar hatsi. Abubuwan gami kamar manganese, nickel da chromium an keɓance su tare da abubuwan ƙazanta da ke sama a kan iyakar hatsi, wanda ke haɓaka haɓakar abubuwan ƙazanta da ƙara haɓakawa. Akasin haka, molybdenum yana da alaƙa mai ƙarfi tare da phosphorus da sauran abubuwan da ba su da kyau, wanda zai iya haifar da lokacin hazo a cikin kristal kuma ya hana rarrabuwar kan iyakokin hatsi na phosphorus, wanda zai iya rage raguwar zafin jiki mai zafi. Abubuwan da ba kasafai ba suma suna da irin wannan tasiri kamar molybdenum. Titanium na iya ƙara haɓaka hazo na phosphorus da sauran abubuwan ƙazanta a cikin kristal, ta yadda za a raunana iyakan hatsi na abubuwan ƙazanta da rage saurin zafin zafin jiki.
Matakan don rage girman zafin jiki mai zafi na madaidaicin bututu masu haske sune kamar haka: (1) bayan yanayin zafi mai zafi, ana amfani da sanyaya mai ko ruwa mai saurin sanyaya don hana rarrabuwar abubuwa masu ƙazanta a iyakar hatsi (2) Lokacin da molybdenum abun ciki a cikin karfe yana ƙaruwa zuwa 0.7%, haɓakar haɓakar yanayin zafi mai zafi yana raguwa sosai. Bayan wannan iyaka, 20 # daidaitattun bututun ƙarfe suna samar da carbides na musamman masu wadata a cikin molybdenum, abun cikin molybdenum a cikin matrix yana raguwa, kuma haɓakar haɓakar bututu masu haske yana ƙaruwa (3) Rage 20 # abubuwan da ke cikin ƙazanta a daidaitaccen bututun ƙarfe (4) ) Yana da wuya a hana embrittlement na sassa aiki a cikin babban zafin jiki tempering embrittlement yankin na dogon lokaci ta ƙara molybdenum kadai. Sai kawai ta hanyar rage 20 # ƙazanta abun ciki a daidai bututu karfe, inganta tsarki na daidaitaccen bututu mai haske, wanda aka haɓaka ta hanyar hada abubuwan aluminium da abubuwan da ba kasafai ba, za a iya hana haɓakar zafin zafin jiki yadda ya kamata.
