Wasu sani game da pistons

Piston motsi ne mai maimaitawa a jikin silinda na injin mota. Tsarin asali na piston za a iya raba zuwa saman, kai da siket. saman piston shine babban ɓangaren ɗakin konewa, kuma siffarsa yana da alaƙa da zaɓin ɗakin ɗakin konewa. Injin mai galibi suna amfani da fistan saman lebur, wanda ke da fa'idar ƙaramin yanki mai ɗaukar zafi. saman fistan ingin dizal sau da yawa yana da ramuka iri-iri, takamaiman siffarsa, matsayi da girmansa dole ne ya kasance tare da haɗin injin dizal da buƙatun konewa.

Saboda fistan konewa na ciki yana aiki a ƙarƙashin babban zafin jiki, matsanancin matsin lamba da yanayin ɗaukar nauyi, abubuwan da ake buƙata don fistan suna da ƙarfi sosai, don haka ana tattauna rabe-raben fistan konewa na ciki.
1. Bisa ga man fetur da ake amfani da shi, ana iya raba shi zuwa piston injin mai, dizal piston, piston gas na halitta.
2. Dangane da kayan aikin piston, ana iya raba shi zuwa fistan simintin ƙarfe, fistan ƙarfe, fistan alloy na aluminum da piston haɗaka.
3. Bisa ga aiwatar da kera fistan blanks, shi za a iya raba nauyi simintin fistan, extrusion simintin fistan da jabun fistan.
4. Dangane da yanayin aiki na piston, ana iya raba shi zuwa nau'i biyu: piston da ba a matsawa ba da piston da aka matsa.
5. Dangane da manufar fistan, ana iya raba shi zuwa fistan mota, fistan motoci, fistan babur, fistan ruwa, fistan tanki, fistan tarakta, fistan yankan lawn, da dai sauransu.

Tare da ƙarfin injin mota, tattalin arziki, kariyar muhalli da buƙatun dogaro suna da ƙarfi sosai, piston ya haɓaka zuwa samfurin fasaha mai ƙarfi wanda ke haɗa sabbin abubuwa masu nauyi da ƙarfi, saman silinda mai siffa ta musamman, ramukan fil na musamman. da sauran sabbin fasahohi don tabbatar da juriya na zafi, juriya na sawa, madaidaiciya madaidaiciya da kyakkyawan aikin hatimi na piston. Rage asarar aikin injin, rage yawan mai, hayaniya da hayaki. Domin biyan buƙatun aiki na sama, da'irar waje na fistan yawanci ana ƙera su azaman da'irar waje ta musamman (convex variable ellipse), wato, ɓangaren giciye daidai gwargwado ga axis na piston shine ellipse ko gyara ellipse, kuma elpticity yana canzawa tare da axis bisa ga ƙayyadaddun ƙa'ida (kamar yadda aka nuna a cikin Hoto 1), kuma daidaito na elpticity shine 0.005mm; Wurin waje na ɓangaren tsayin piston shine madaidaicin lanƙwasa na aikin oda mafi girma, kuma daidaiton kwane-kwane shine 0.005 ~ 0.01mm. Don haɓaka ƙarfin ɗaukar piston da ƙara ƙarfin lita na injin, ramukan fil na piston mai ɗaukar nauyi yawanci ana tsara su cikin nau'in mazugi na ciki ko nau'in lanƙwasa na yau da kullun (ramukan fil na musamman), daidaiton girman girman. na ramukan fil shine matakin IT4, kuma daidaiton kwane-kwane shine 0.003mm. A matsayin maɓalli na musamman na mota, piston yana da ƙaƙƙarfan halayen fasaha wajen yanke. A cikin gida masana'antar kera piston yawanci hada da janar inji kayan aikin da na musamman kayan aiki hade tare da halaye na piston tsarin machining line, sabili da haka, na musamman kayan aiki ya zama key kayan aiki na piston yankan aiki, da kuma ta aiki da kuma daidaito zai shafi kai tsaye shafi na piston. ma'aunin inganci na mahimman halaye na samfurin ƙarshe.