Mgbanaka piston.
A na-eji mgbanaka Piston etinye oghere piston n'ime mgbanaka ígwè, a na-ekewa mgbanaka piston n'ụdị abụọ: mgbanaka mkpakọ na mgbanaka mmanụ. Enwere ike iji mgbanaka mkpakọ mechie gas ngwakọta ọkụ n'ime ụlọ ọkụ; A na-eji mgbanaka mmanụ ehicha mmanụ gabigara ókè site na silinda. Mgbanaka piston bụ ụdị mgbanaka ígwè na-agbanwe agbanwe nwere nnukwu mgbanwe mpụta, nke a na-ejikọta na profaịlụ na oghere annular ya kwekọrọ. Mgbanaka piston na-agbanwe agbanwe na nke na-agbanwe agbanwe dabere na ọdịiche nrụgide nke gas ma ọ bụ mmiri mmiri iji mepụta akara n'etiti okirikiri mpụta nke mgbanaka na silinda na otu akụkụ nke mgbanaka na oghere mgbanaka.
Oke nke ngwa
A na-eji mgbaaka piston eme ihe n'ọtụtụ igwe ike dị iche iche, dịka injin steam, injin dizel, injin petrol, compressors, hydraulic pressures, wdg, nke a na-ejikarị eme ihe n'ụgbọala, ụgbọ okporo ígwè, ụgbọ mmiri, ụgbọ mmiri na ihe ndị ọzọ. N'ozuzu, a na-etinye mgbanaka piston n'ime oghere mgbanaka nke piston ahụ, ya na piston, silinda liner, isi silinda na ihe ndị ọzọ dị na ụlọ ahụ iji rụọ ọrụ.
Mgbanaka Piston bụ isi ihe dị n'ime injin mmanụ ọkụ, ya na silinda, piston, na mgbidi silinda iji mezue mkpuchi nke gas mmanụ ọkụ. Injin ụgbọala a na-ejikarị eme ihe nwere ụdị injin dizel na petrol abụọ, n'ihi arụmọrụ mmanụ ọkụ dị iche iche ha, ojiji nke mgbanaka piston abụghị otu, a na-emepụta mgbanaka piston mbụ site na nkedo, mana ka teknụzụ na-aga n'ihu, mgbanaka piston ígwè dị elu malitere, na ọrụ nke injin ahụ, ihe achọrọ maka gburugburu ebe obibi na-aga n'ihu na-aka mma, ọtụtụ ngwa ọgwụgwọ elu dị elu, dị ka ịgba ọkụ okpomọkụ, electroplating, chrome plating, wdg. Nitriding gas, nkwụnye anụ ahụ, mkpuchi elu, ọgwụgwọ zinc manganese phosphating, wdg, na-eme ka ọrụ nke mgbanaka piston ka mma nke ukwuu.
Ọrụ mgbanaka Piston gụnyere mkpuchi, ịchịkwa mmanụ (njikwa mmanụ), njikwa okpomọkụ (nnyefe okpomọkụ), nduzi (nkwado) ọrụ anọ. Ịmechi: na-ezo aka na gas mkpuchi, ekwela ka mmiri gas na-agbapụta n'ime ụlọ ọkụ gaa na crankcase, a na-achịkwa mmiri gas na opekempe, na-eme ka arụmọrụ okpomọkụ ka mma. Mmiri na-agbapụta ikuku agaghị ebelata ike nke injin ahụ naanị, kamakwa ọ ga-eme ka mmanụ ghara ịdị mma, nke bụ ọrụ bụ isi nke mgbanaka gas; Gbanwee mmanụ (njikwa mmanụ): a na-ewepụ mmanụ na-agbapụta oke na mgbidi silinda, a na-ekpuchikwa mgbidi silinda ahụ na ihe mkpuchi mmanụ dị gịrịgịrị iji hụ na mmanụ nkịtị nke silinda na piston na mgbanaka, nke bụ ọrụ bụ isi nke mgbanaka mmanụ. Na injin ndị dị elu nke oge a, a na-elebara ọrụ nke ihe nkiri mmanụ njikwa mgbanaka piston anya nke ọma; Mmiri na-agbapụta okpomọkụ: a na-ebufe okpomọkụ nke piston na silinda liner site na mgbanaka piston, ya bụ, mmetụta oyi. Dịka data a pụrụ ịtụkwasị obi si kwuo, 70 ~ 80% nke okpomọkụ nke piston nke piston a na-anaghị ajụ oyi na-agbasa site na mgbanaka piston ruo na mgbidi silinda, 30 ~ 40% nke piston oyi na-agbasa site na mgbanaka piston ruo na mgbidi silinda; Nkwado: Mgbanaka piston ahụ na-edebe piston ahụ na silinda, na-egbochi njikọ kpọmkwem n'etiti piston na mgbidi silinda, na-ahụ na mmegharị dị mma nke piston ahụ, na-ebelata iguzogide esemokwu, ma na-egbochi piston ịkụ silinda ahụ. N'ozuzu, piston nke injin gasoline na-eji mgbanaka gas abụọ na otu mgbanaka mmanụ, ebe injin dizel na-ejikarị mgbanaka mmanụ abụọ na otu mgbanaka gas.
Nchọpụta dị mma na nke ọjọọ
Elu ọrụ nke mgbanaka piston agaghị enwe nicks, scratches, peeling, silinda mpụta na elu na ala ga-enwe njedebe a kapịrị ọnụ, mgbanwe nke mgbagọ agaghị agafe 0.02-0.04 mm, mgbanwe ọkọlọtọ nke mgbanaka dị na oghere agaghị agafe 0.15-0.25 mm, na mgbanwe na nchapụta nke mgbanaka piston na-emezu ihe achọrọ. Na mgbakwunye, anyị kwesịkwara ịlele ntapu ìhè nke mgbanaka piston, ya bụ, mgbanaka piston dị larịị na silinda, tinye obere oriọna n'okpuru mgbanaka piston, tinye ihuenyo ọkụ n'elu, wee hụ oghere ntapu ìhè dị n'etiti mgbanaka piston na mgbidi silinda, nke na-egosi ma njikọ dị n'etiti mgbanaka piston na mgbidi silinda dị mma. N'ọnọdụ nkịtị, njikọta ntapu ìhè nke mgbanaka piston nke ejiri nha ọkpụrụkpụ tụọ ekwesịghị ịgafe 0.03 mm. Ogologo nke ntapu ìhè na-aga n'ihu ekwesịghị ịdị oke karịa 1/3 nke dayameta silinda, ogologo nke ọtụtụ oghere ntapu ìhè ekwesịghị ịdị oke karịa 1/3 nke dayameta silinda, ogologo mkpokọta nke ọtụtụ ntapu ìhè ekwesịghị ịgafe 1/2 nke dayameta silinda, ma ọ bụghị ya, a ga-agbanwe ya. Akara mgbanaka piston GB/T 1149.1-94 na-akọwapụta na mgbanaka piston niile achọrọ iji nwee ntụziaka ntinye ga-adị n'akụkụ elu, ya bụ, akụkụ dị nso na ụlọ ọkụ. Mgbaaka ndị a kara aka n'akụkụ elu gụnyere: mgbanaka cone, chamfer dị n'ime, mgbanaka tebụl ịkpụ ihe mpụta, mgbanaka imi, mgbanaka wedge na mgbanaka mmanụ chọrọ ntụziaka ntinye, na akara akụkụ elu nke mgbanaka ahụ.
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