Njengoko igama libonisa, intambo yombhobho ibhekisela kumsonto osetyenziswe kumbhobho. Apha, umbhobho ubhekisela kumbhobho oqhelekileyo. Ekubeni olu hlobo lombhobho lubizwa ngokuba ngumbhobho wegama, intambo yombhobho ngokwenene intambo yegama. Imisonto yombhobho, njengendlela yokudibanisa umbhobho, isetyenziselwa ngokubanzi ukudityaniswa kunye nokutywinwa kwemibhobho emincinci kunye nephakathi ehambisa ulwelo kunye neegesi. Kukho iintlobo ezintathu eziqhelekileyo zemicu yombhobho. Zizo: intambo ye-NPT, intambo ye-BSPT, kunye ne-BSPP intambo.
Umahluko omkhulu phakathi kweentlobo ezintathu zemisonto:
| Umsonto wombhobho | Iengile | Taper/Parellel | Phezulu & Ezantsi | Ifomu yokutywina | Umgangatho |
| NPT | 60° | I-tapered | Umphezulu osicaba, umzantsi osicaba | Isigcwalisi | I-ASME B1.20.1 |
| BSPT | 55 ° | I-tapered | Jikeleza phezulu, ujikeleze t ezantsi | Isigcwalisi | ISO7-1 |
| BSPP | 55 ° | I-Parellel | Jikeleza phezulu, ujikeleze t ezantsi | Gasket | ISO228-1 |
Imigaqo yokutywina kunye neendlela zokutywinwa kweentlobo ezintathu zemicu yombhobho
Ingaba i-55 ° intambo yombhobho otywiniweyo (BSPT) okanye i-60 ° intambo yombhobho etywinwe (NPT), isibini sokutywinwa somsonto kufuneka sizaliswe nge-medium ngexesha le-screwing. Ngokubanzi, iteyiphu yokutywina ye-PTFE isetyenziselwa ukusonga intambo yangaphandle, kwaye inani lokusonga liyahluka ukusuka ku-4 ukuya kwi-10 ngokuxhomekeke kubukhulu be tape yokutywina ye-PTFE. Xa i-gap phakathi kwephezulu kunye nezantsi kwezinyo ihambelana, iqinisa ngokuqiniswa kombhobho wentambo. Imisonto yangaphakathi nangaphandle icinezelwe omnye komnye, kuqala kususwa umsantsa phakathi kwamacala acinezelweyo. Emva koko, njengoko amandla okuqinisa asanda, umphezulu wezinyo uya usiba bukhali, umzantsi wezinyo ngokuthe ngcembe uba buthuntu, kwaye umsantsa phakathi komphezulu wezinyo kunye nomzantsi wezinyo uyanyamalala ngokuthe ngcembe, ukuphumeza injongo yokuthintela ukuvuza. Xa kukho utshintsho okanye ukuphazamisana phakathi komphezulu nasezantsi kwezinyo, kuqala bacinezele omnye komnye, ebangela ukuba umphezulu wezinyo ube buthuntu ngokuthe ngcembe kwaye emazantsi ezinyo ngokuthe ngcembe ube bukhali ngakumbi, emva koko unxibelelwano lweflank yezinyo kwaye ngokuthe ngcembe luphelisa umsantsa. Ngaloo ndlela ukufezekisa umsebenzi wokutywinwa wombhobho wombhobho.
Ukuphazamiseka 55 ° non otywiniweyo umbhobho intambo (BSPP) ngokwayo ayinayo umsebenzi wokutywina, kwaye intambo isebenza kuphela umsebenzi wokudibanisa. Ke ngoko, i-gasket yokutywina iyafuneka ekugqibeleni ukutywinwa kobuso. Kukho iindlela ezimbini zokutywinwa kobuso besiphelo: enye kukusebenzisa i-gasket ethe tyaba kwisiphelo sobuso bomsonto oyindoda, kwaye enye kukusebenzisa i-gasket edibeneyo (i-elastic gasket sintered kwicala langaphakathi lentsimbi yentsimbi) ekupheleni kobuso bomsonto obhinqileyo.
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Ixesha lokuposa: Jul-22-2025