NPT kuma da halaye

Sarrafa karfe sanda ko tube ta haddasa threading na musamman kayan aiki da ake kira threaded connection. Yana ne amfani da kwayoyi, sukurori, kusoshi, wanda aka yi amfani to connect da daban-daban aka gyara da kuma majalisai, da kuma bututu thread ake amfani da su bututun kafuwa.

Babban abubuwa na irin wannan na m fili ne ta farar wutã ne, profile, zurfin da GROOVES da diamita na waje da kuma ciki. Bayanan martaba suna zuwa kashi da dama iri: trapezoidal, triangular, rectangular da sauransu. Mene ne a profile? Idan muka yi giciye-sashe, sa'an nan samun wani tsari da kuma samun bayanin martaba.

Neman abin nufi, abun zai yi amfani a kan bututu thread iya zama ko dai hagu ko dama. Har ila yau, shi za a iya raba musamman da dunnage.

Babban irin kayyade mahadi ne a triangular profile, da kuma musamman sadarwa - rectangular, da kuma da dama sauran iri profiles.

Sassaka, aikata a kan sukurori, kusoshi, kwayoyi - alwatika, domin shi da ake amfani da fasteners. A nisa tsakanin crests ko kududdufai na biyu da kwasfansu na jũya kusa kira mataki. A zurfin irin wannan fili ne nesa daga kasa zuwa saman batu na nada.

Kayyade bututu thread ko triangular, shi ne inch da awo. Yawancin lokaci, shi ne na farko fasteners a cikin mota kayan aiki. Diameters, duka biyu na ciki da kuma na waje, ana auna a millimeters, kuma Threaded mataki, sai dai millimeters, ko da a cikin hannun jari.

Amma bututu inch thread yana da wani kwana na 55 digiri, ko da yake profile ne guda a matsayin cewa daga cikin tsarin awo. Su bambanci shi ne, ma'aunai faruwa a inci maimakon millimeters saboda da ya fi girma farar.

A lokacin da installing aikin famfo bututu an yi amfani da sassa da Threaded inch. Ta shi ne fastening da kuma bututu. A bututu a cikin ra'ayi na gaskiya cewa ta zurfin da aka kayyade ta kauri daga bututu ganuwar, karami zaren. Amma kuma saboda a mafi yawan jũya - a tighter connection. Amma ga mafi barga mahadi dace rufin kayyade thread, wanda, kamar yadda ya bayyana a sama, a yanka a cikin kusoshi, sukurori, kwayoyi, Ya sanya daga m karfe.

Kayyade bututu thread, a Bugu da kari to atomatik sabon, shi za a iya yanke hannu da yin amfani da dan lido. Faranti da aka ma kasu iri, dangane da na'urar. Su prismatic, zagaye, zamiya da kuma dukan.

Alal misali, zamiya da mutu, yankan cikakken thread iya hana kananan bambancin diamita ƙarfe sanda. Da ake ji da dukan zagaye mutu, sabawa a diamita ne riga unacceptable.

Threaded a kan bututu kamar haka: shi wajibi ne don riko da vertically shigar da m da workpiece, da kuma yin amfani da madauwari mutu, auku shirya tsawon a lokaci guda. Idan akwai suna amfani da zamiya faranti, yankan zai faru a biyu ko uku kafa.

A lokacin da yankan da dama dunƙule dangane mutu stock kamata a juya ga dama da hagu a cikin sabon - hagu, alhãli kuwa ba manta yi kamar wata jũya baya domin kau. Lokacin da duk abin da yake shirya, shi za a iya bari tare da taimakon kunsa kwayoyi.

A kan aiwatar da yankan wani karfe bututu thread abubuwa da kanta mai tsanani ya mutu. Ga su yi amfani da sulfofrezol sanyaya ko bushewa man fetur. Domin sanyaya na Cast baƙin ƙarfe ne mafi kyau dace turpentine.

A ciki coils an yanke famfo. A wannan hanya shi ne lazimta a cikin riko da bangaren, da kuma ya mai da farko famfo rami da aka gama kirgawa. Bayan kau wani karfe Layer, da ake ji a na biyu da na uku taps, yanke riga cikakken jũya. Ko da yaushe tabbatar da cewa da axis na famfo rami da kuma wasan. Daga lokaci zuwa lokaci, kwance cikin famfo a gaban shugabanci ¼ juya cire kwakwalwan kwamfuta.