Biyu{0}Clinders da ke aiki da pneumatic sun dogara da nau'ikan hatimi daban-daban don tabbatar da aiki mai kyau, hana zubar iska, da kiyaye ingantaccen aiki akan lokaci. Mafi yawan hatimai da aka yi amfani da su a cikin nau'ikan silinda masu aiki biyu{2} sun haɗa da:
### 1. **Piston Seals**
- **Manufa**: Waɗannan hatimai suna kusa da fistan, suna tabbatar da hatimi mai tsauri tsakanin piston da ganga silinda don hana zubar iska yayin da fistan ke motsawa.
- **Iri**:
- **O- zobba**: Mafi yawan nau'in hatimin piston, yawanci ana yin shi daga roba ko elastomers kamar nitrile, Viton, ko polyurethane. O{3} zoben suna samar da ingantaccen hatimi ta hanyar ƙirƙirar shinge mai matsa lamba{4}}.
- **U -Cup Seals**: U{2}}kofuna (ko biyu{3}) suna da siffa kamar "U" kuma suna ba da tambari mai sassauƙa, matsattse a kusa da fistan. Suna da tasiri wajen hana zubar iska a ƙarƙashin matsin lamba kuma ana amfani da su don aikace-aikacen matsa lamba mafi girma-.
- **Hatimin Wiper**: Yawancin lokaci ana amfani da su tare da hatimin piston, waɗannan hatimin suna cire datti da tarkace daga sandar, suna hana gurɓata shiga cikin silinda.
### 2. **Tambarin Sanda**
- **Manufa**: Hatimin sanda yana hana iska ko mai yoyo bayan sandar piston, kiyaye matsa lamba a cikin silinda da kuma tabbatar da aiki mai santsi.
- **Iri**:
- **O- zobe**: Sauƙaƙan kuma tasiri, O{2}makullin sandar zobe ya zama ruwan dare a yawancin aikace-aikacen pneumatic.
- **V{1}} Hatimin zobe**: AV{2}} hatimin hatimin da aka ƙera don samar da hatimin sandar, galibi ana amfani dashi tare da zoben ajiya don inganta aikin hatimi.
- **Polyurethane Seals**: Waɗannan hatiman suna da ɗorewa kuma suna ba da juriya mai inganci, yana sa su dace da aikace-aikacen sauri{1}.
- **Wiper Seals**: Hakanan aka sani da hatimin "scraper", ana amfani da waɗannan don cire duk wani gurɓatacce ko tarkace daga sandar piston yayin da yake shiga ciki da waje daga cikin silinda. Suna taimakawa kare sandar da sauran abubuwan ciki daga lalacewa.
### 3. **Karshen Hatimin Kafa**
- **Manufa**: Ana amfani da waɗannan hatimin a ƙarshen iyakoki na silinda don hana zubar iska da kiyaye matsa lamba na ciki a cikin silinda.
- **Iri**:
- **O- zoben**: O{2}}ana yawan amfani da zoben don rufe alakar da ke tsakanin iyakoki na ƙarshen da bututun Silinda. Suna da sauƙi kuma farashi{4}} tasiri.
- **Flat Seals**: Ana yin waɗannan ne daga kayan kamar roba ko ƙarfe kuma an ƙera su don dacewa da maƙallan ƙarshen don madaidaicin hatimi.
### 4. **Ajiyayyen Rings**
- **Manufa**: Ana amfani da zoben ajiya tare da hatimai na farko (kamar zobe na O{1}) don hana fitar da su ko lalacewa a ƙarƙashin matsa lamba. Waɗannan zobba suna ba da ƙarin tallafi kuma suna ƙara rayuwar hatimi.
- **Materials**: Ajiyayyen zoben yawanci ana yin su ne da abubuwa masu wuya kamar PTFE (Teflon) ko thermoplastics don jure babban matsi da samar da ƙarin ƙarfin rufewa.
### 5. **Buffer Seals**
- **Manufa**: Makullin buffer yana taimakawa wajen shawo kan girgizar da kuma hana girman matsa lamba - daga lalata hatimin, musamman a aikace-aikacen da ke da canjin matsa lamba akai-akai ko kwatsam.
- **Materials**: Yawancin su ana yin su da abubuwa masu laushi kamar roba ko polyurethane don samar da matashin kai.
### 6. **Rod Scrapers**
- **Manufa**: Waɗannan hatimai, waɗanda kuma aka sani da goge sandar, ana sanya su a buɗaɗɗen silinda don cire gurɓata, datti, ko danshi daga sandar yayin da yake faɗaɗa da ja da baya. Wannan yana taimakawa kiyaye mutuncin sauran hatimai.
- **Kayayyaki**: Yawanci ana yin su daga roba, polyurethane, ko kayan haɗaɗɗun abubuwa na musamman.
### 7. **Tambarin Kushin**
- **Manufa**: Ana amfani da hatimin kushin a cikin silinda don rage tasiri da hayaniya a ƙarshen bugun bugun ta hanyar rage jinkirin piston yayin da yake gabatowa ƙarshen silinda. Waɗannan hatimai suna da amfani musamman ga aikace-aikacen da ke da babban motsi{2}}.
- **Nau'o'i**: Ana iya haɗa waɗannan a cikin madafunan ƙarshen kuma an yi su daga abubuwa masu laushi kamar elastomers ko robobi.
### Kayayyakin da Ake Amfani da su don Hatimin Silinda na Pneumatic:
- **Nitrile (NBR)**: Akan yi amfani da shi don hatimi saboda juriyarsa ga mai, man fetur, da lalacewa gabaɗaya.
- **Viton (FKM)**: Sanannen shi don juriyar yanayin zafi da kwanciyar hankali, galibi ana amfani da shi wajen buƙatun aikace-aikace.
- **Polyurethane (PU)**: Yana ba da ingantaccen juriya kuma ana amfani da shi a cikin hatimin sanda da piston.
- **EPDM**: Yawancin lokaci ana amfani da shi don hatimi a cikin mahallin da ke buƙatar juriya ga matsanancin zafi da ozone.
- **PTFE (Teflon)**: Ana amfani da shi a cikin zoben ajiya da kuma wani lokacin a cikin hatimin piston saboda ƙarancin juriya da juriya ga sinadarai.
- **Silicone**: Ana amfani da shi a wasu aikace-aikace don tsayin daka{1}} zafi, ko da yake ba kowa a cikin silinda na pneumatic.
### Taƙaice
Zaɓin hatimai don ninki biyu{0}mai aiki da silinda na pneumatic ya dogara da abubuwa kamar matsa lamba, zafin jiki, gudu, da nau'in matsakaici (iska, mai, ko ruwa) da silinda ke fallasa su. Ta hanyar yin amfani da haƙƙin haƙƙin hatimin piston, hatimin sanda, da zoben ajiya, silinda na pneumatic na iya aiki yadda ya kamata, tare da ɗigon ruwa kaɗan, tsawon rayuwar sabis, da rage kulawa.
