Injongo eyinhloko yokwenza iphrofayela iwukuqinisekisa ukuthi umumo wekhonta wangaphandle weringi ye-piston uhambisana nejika lokucindezela eliklanyelwe.

1. Indawo yokugcina yokugaya: ukuphakama okungenalutho = ukuphakama kwendandatho yangaphambili yediski yokusika + isibonelelo sokugaya (ama-0.7-0.8 ama-double discs)
I-disc yokusika: ukuphakama kwendandatho yangaphambili ye-disc yokusika = ububanzi bomsiki + 2 × (ukuphakama kwendandatho ngemva kokugaya okuphakathi + isabelo sokugaya esiphakathi);   Ububanzi bommese wokusika ngokuvamile bungu-1.8~2.2, futhi imvume yokugaya emaphakathi ivamise ukuba ngu-0.18 (izinhlangothi ezimbili)
2. Ubuso bokuphela kokugaya okuphakathi: ukuphakama kokuqeda kancane + isabelo sokuqeda kancane; i-semi-finishing allowance imvamisa ingu-0.16~0.20 (izinhlangothi ezikabili)
I-semi-finish ekupheleni kobuso bokugaya: ubude obuhle bokugaya + isibonelelo sokugaya esihle; I-alloy ring isibonelelo sokugaya esihle ngokuvamile sithatha 0.03~0.035 (izinhlangothi ezimbili); I-ductile iron ring ngokuvamile ithatha u-0.05 (izinhlangothi ezimbili)
3. Qedela ukugaya ubuso bokugcina: nquma ukuthi uzogqoka futhi uphinde ugaye ngokusho kobuchwepheshe bokucubungula
4. Ukukopisha imoto: usayizi wobubanzi obude
5. Ukusikwa kokugaya: ubude bokusika
6. Indilinga yangaphakathi eyisicefe: ukuzimisela kokuqina kwe-radial; ubugqinsi be-radial boring boring obuyisicefe + isibonelelo esihle esiyisicefe sendilinga yangaphakathi + isibonelelo esihle sokujika esiyindilinga sangaphandle. Imvume yomshini yendilinga yangaphakathi eyisicefe kanye nendilinga yangaphandle ephendukayo ngokuvamile ingu-0.2mm.
7. Ukulungiswa okuqinile kokuvula: igebe elivaliwe ngokuvamile li-0.15-0.35, futhi ububanzi bangaphakathi begeji yeringi ngokuvamile φd1 (usayizi oyisisekelo we-piston) + 0.65
8. Qedela ukuguqula indilinga yangaphandle: ubukhulu be-radial be-substrate eqediwe + isibonelelo esihle sendilinga sangaphakathi esiyisicefe + isabelo sokucija sangaphandle; Isibonelelo esihle sendingilizi yangaphakathi esiyisicefe sivamile
0.2mm, isibonelelo sokucija ngokuvamile singu-0.03 ~ 0.05mm. Ukunqunywa kwegebe elivaliwe: ngesisekelo sosayizi we-trim onzima, beka u-0.05 ezinhlangothini ezingenhla nezingezansi
9. Umbuthano ongaphakathi oyisicefe omuhle: ubukhulu be-radial bomkhiqizo oqediwe-ugqinsi longqimba lwe-chromium + isibonelelo sokucija ngaphambi kokucwecwa; ukushuba kongqimba lwe-chromium kunqunywa inqubo, futhi akukwazi ukubhekisela kuphela kumdwebo womkhiqizo. Isibonelelo sokucija ngaphambi kokucwenga ngokuvamile sithathwa njengo-0.05
10. I-engeli yangaphandle e-Chamfering: ngokuvamile ingu-0.2X45°, inhloso iwukuvimbela ukufakwa kwe-chrome ekuweni kwe-chrome
11. Ukuqeda umlomo ngaphambi kokucwenga: Qinisekisa ngokwegebe elivaliwe ngemva kokugaya okuphakathi, imajini ohlangothini olulodwa lwembobo ingu-0.10.
12. Ukuhlolwa ngaphambi kokucwenga
13. Ukuhlonitshwa ngaphambi kokucwecwa: imvume yohlangothi olulodwa ngu-0.05
14. Hlola ukubukeka ngaphambi kokucwenga
15. I-Chrome plating: ugqinsi lwe-chrome plating eqediwe + i-honing allowance ngemva kokucwecwa
16. I-Demagnetization
17. Ukuvulwa kokugaya okuphakathi: Kunqunywa ngokuhambisana nobukhulu bomkhiqizo oqediwe, futhi imfuneko ukuqinisekisa ukuthi kukhona umkhawulo wokuvuleka kokugaya okuhle, kodwa hhayi okukhulu kakhulu. Ngokuvamile, imajini ehlangothini olulodwa ingu-0.05~0.10m
18. Ukuhlonishwa ngemva kokucwetshwa: Imajini ehlangothini olulodwa 0.05
19.Hlola ukubukeka ngemva kokucwenga
20. Ukuvuleka kokugaya okuhle: nquma ubude bendandatho ngokuvumelana nezidingo zomdwebo womkhiqizo
21. Ukugaya kabusha: Thola ubude beringi ngokuvumelana nezidingo zemidwebo yomkhiqizo
22. Ingaphezulu le-Wedge yemoto: 1.5 ukusuka indingilizi engaphandle, ukuphakama kwendilinga yesisekelo ngu-1.061±0.01, i-engeli ye-wedge 7°15′±15′
23. Ukugaya i-groove yokumisa: ngokuvumelana nezidingo zomdwebo womkhiqizo
24. Ukucija uwoyela indilinga yangaphandle: Ukucija uwoyela imizuzwana eyi-10 ukuqinisekisa igebe elivaliwe kanye nemajini ehlangothini olulodwa
25. Phosphating
26. Ukumaka nge-laser