1. Hauv kev siv ib txwm, lub pas nrig piston dais cov kev ua ntawm hloov khoom siv, thiab cov cuab yeej sib khi ntawm φ50mm × 770mm rub nws cov nplaim rov qab, yog li nws yuav tsum muaj lub siab tawv thiab hnav tsis kam. 2. Cov qauv ntawm piston pas nrig yog qhov yooj yim, tab sis qhov sib piv ntawm ntev mus rau taub yog loj heev. Nws yog lub ntsej muag ntim nrog qhov tsis zoo. Txhawm rau kom ntseeg tau qhov machining raug, qhov tig ntxig thiab tig zoo yuav tsum tau sib cais thaum tig, thiab ob qho tag nrho ntxhib thiab zoo tig siv. Cov cuab yeej tuav, txhawm rau txo qhov rhuav tshem ntawm cov haujlwm thaum ua haujlwm machining, lub nruab nrab yuav tsum tau siv thaum machining cov xov ntawm ob qho kawg. 3. Thaum xaiv qhov muab tso rau datum, txhawm rau ua kom lub coaxiality kam rau ua ntawm cov ntu thiab qhov chaw sib nrig sib cuam tshuam ntawm txhua ntu, txhua cov txheej txheem kev ua tiav siv ob qhov chaw muab tso rau, uas ua raws li lub hauv paus ntsiab lus ntawm kev sib koom ua ke datum. 4. Thaum sib tsoo lub ntsej muag sab nraud, qhov haujlwm ntxig rau hauv cov riam thiab ywj tawg, uas cuam tshuam qhov tseeb ntawm piston pas nrig. Yog li ntawd, qhov nruab nrab lub qhov yuav tsum tau kho thaum lub sijhawm ua haujlwm, thiab lub qhov taub yuav tsum huv, qhov nruj ntawm lub qhov taub thiab qhov nruab nrab yuav tsum tsim nyog, thiab cov roj zoo yuav tsum tau ua kom zoo. Qhov kev xaiv dav dav ntawm kev sib tsoo lub log: abrasive dawb corundum (WA), qhov loj me ntawm 60 #, qhov nyuaj ntawm nruab nrab muag lossis nruab nrab, cov ntawv cog lus ceramic, thiab qhov dav ntawm kev sib tsoo lub log yuav tsum nqaim dua kom txo cov radial sib tsoo zog. Ua tib zoo xaiv qhov kev xaiv ntawm kev sib tsoo thaum ua kom tiav. Tshwj xeeb tshaj yog kev sib tsoo qhov tob yuav tsum yog me me. 5. Thaum sib tsoo φ50mm × 770mm sab nraud lub voj voog thiab 1:20 taper, ob txheej txheem yuav tsum tau nqa tawm nyias. Thaum sib tsoo lub 1:20 taper, daim ntawv xeem yuav tsum yog hauv av ua ntej, thiab daim ntawv ua haujlwm tuaj yeem ua haujlwm hauv av tsuas yog tom qab ua tiav cov ntawv xeem. 6. Lub 1:20 lub khob hlaws dai sab saum toj yog siv rau tus qauv 1:20 ntiv nplhaib lub ntsuas cua xim soj ntsuam, thiab lub chaw tiv tauj yuav tsum tsis pub tsawg tshaj 80%. 7. Txhawm rau kom ntseeg tau ruaj khov ntawm machining qhov tseeb ntawm piston pas nrig, phau ntawv ncaj tsis pub thaum lub sijhawm tag nrho cov kev ua haujlwm machining. 8. Thaum nitriding, seem xov yuav tsum tiv thaiv los ntawm cov khoom siv tiv thaiv.
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