Flange Face Pedzisa
Flange face kupera
Iyo ASME B16.5 kodhi inoda kuti chiso cheflange (chiso chakasimudzwa uye chiso chakafuratira) chine hukasha chaihwo kuti ive nechokwadi chekuti nzvimbo iyi inopindirana negasket uye inopa chisimbiso chemhando yepamusoro.
Mhedziso yakatsetseka, ingave yakamanikana kana kutenderera, inodiwa ine mikoto makumi matatu kusvika ku55 painji imwe chete uye mhedzisiro yacho kukwasharara kuri pakati pe125 ne500 madiki inches. Izvi zvinobvumira kuti magiredhi akasiyana-siyana ekupedzisa kwepamusoro aitwe kuwanikwa neanogadzira flange kune gasket yekubatanidza pamusoro pesimbi flanges.
Mufananidzo wacho unoratidza kupera kwakapetwa paChiso Chakasimudzwa.
Iyo inonyanya kushandiswa Surfaces
Stock Finish
Iyo inonyanya kushandiswa kune chero flange pamusoro pekupedzisira, nekuti ingangoita, yakakodzera kune ese akajairwa sevhisi mamiriro. Pasi pekumanikidzika, chiso chakapfava kubva kune gasket chichanyura mukati mekupedzisira uku, iyo inobatsira kugadzira chisimbiso, uye kukwirira kwepamusoro kunogadzirwa pakati pezviso zvekubatana.
Mapeji emaflange aya anogadzirwa ne 1.6 mm radius yakatenderedza-nosed chishandiso pachiyero chekudya che 0.8 mm per revolution inosvika 12 inch. Kune saizi 14 inch uye yakakura, kupedzisa kunogadzirwa ne3.2 mm yakatenderedza-nosed chishandiso pakudya kwe1.2 mm per revolution.
Spiral Serrated
Iyi zvakare inoenderera kana phonographic spiral groove, asi inosiyana kubva pakupera kwestock pakuti goho rinowanzo gadzirwa pachishandiswa 90-° chishandiso chinogadzira “V” geometry ine 45° angled serration.
Concentric Serrated
Sezvinoratidzwa nezita racho, kupedzisa uku kunosanganisira concentric grooves. Chishandiso che90 ° chinoshandiswa uye serrations akapatsanurwa zvakaenzana kumeso.
Smooth Finish
Uku kupedzisa kunoratidza hapana anooneka anoonekera maturusi maki. Aya mapedzisiro anowanzo shandiswa kune gaskets ane simbi inotarisana nekaviri jaketi, flat simbi uye marata. Nzvimbo dzakatsetseka dzinosangana kuti dzigadzire chisimbiso uye zvinoenderana nekupfava kwezviso zvinopikisa kuti zvigadzirise chisimbiso. Izvi zvinowanzoitika nekuve negasket contact surface inoumbwa neinoenderera (inombonzi phonographic) spiral groove inogadzirwa ne 0.8 mm radius round-nosed tool pachiyero chekudya che 0.3 mm pa revolution ine hudzamu hwe 0.05 mm. Izvi zvichaita kuti roughness pakati Ra 3.2 uye 6.3 micrometers (125 - 250 micro inch).
Chirevo (s) cheMunyori…
SMOOTH FINISH
Yakakodzera spiral gasket uye isiri simbi gasket?
Rudzi urwu rwekushandisa rudzii?
Mibvunzo iri pamusoro inowanzobvunzwa. Ndinoedza kupa mhinduro yakarurama.
Smooth finish flanges anowanikwa kune yakaderera pressure uye/kana hombe dhayamita mapaipi uye anonyanya kuitirwa kushandiswa nesimbi yakasimba kana spiral ronda gaskets.
Smooth finishes inowanzowanikwa pamichina kana majoini ane flanged kunze kwepombi flanges. Paunenge uchishanda nekupera kwakatsetseka, zvakakosha kufunga nezve kushandisa thinner gasket kuderedza mhedzisiro yezvinokambaira uye kutonhora kuyerera. Izvo zvinofanirwa kucherechedzwa, zvisinei, kuti ese ari maviri akaonda gasket uye yakatsetseka kupera, mukati uye pachayo, inoda yakakwira yekumanikidza simba (kureva bolt torque) kuti iwane chisimbiso.
Iwe unogona kunge wakaona iyi chirevo:
Machining ezviso zvegasket zveflange kusvika pakupera kwakatsetseka kweRa = 3.2 - 6.3 micrometer
(= 125 - 250 microinchesAARH)
AARHinomirira Arithmetic Average Roughness Height. Inoshandiswa kuyera kushata (kutsvedzerera) kwenzvimbo. 125AARHzvinoreva 125 micro inches ichava avhareji yehurefu hwekukwira nekudzika kwepasi.
63 AARHinotsanangurwa yeRing Type Joints.
125-250AARH(inonzi yakatsetseka kupera) inotsanangurwa kune Spiral Wound Gaskets.
250-500AARH(inonzi stock finish) inotsanangurwa kune yakapfava gaskets seNON Asbestos, Graphite sheets, Elastomers etc. Kana tikashandisa yakatsetseka kupera kwemagaskets akapfava akakwana "kurumwa mugumisiro" hazvizoitike uye saka mubatanidzwa unogona kukura kubuda.
Dzimwe nguvaAARHinonzi zvakare seRaizvo zvinomirira Roughness Average uye zvinoreva zvakafanana.
Nguva yekutumira: Chikunguru-06-2020