Chigaro chevharuvhu mupeturu yemukati inopisa kana injini yedhiziri ndiyo nzvimbo inogarwa nevharuvhu yekupinda kana yekupedza simba panguva yechikamu cheiyo injini inoshanda kutenderera kana iyo valve yakavharwa.Chigaro chevharuvhu chinhu chakakosha cheinjini pakuti kana isina kumira zvakanaka, yakanangidzirwa, kana kuumbwa panguva yekugadzirwa, kubuda kwevharuvhu kuchaitika izvo zvinokanganisa chiyero chekumanikidza injini uye saka injini inoshanda, kushanda (simba uye torque), exhaust emissions, uye hupenyu hweinjini.
Zvigaro zvevharuvhu zvinowanzo umbwa nekutanga kudzvanya-kukodzera chimedu chinenge cylindrical chesimbi yakaomeswa alloy, senge Stellite, kupinda mukuora mwoyo muhumburumbira pamusoro peimwe neimwe inozoitika tsinde yevharuvhu, uyezve kugadzira conical-chikamu chepamusoro muvharuvhu. chigaro chinozosangana neinowirirana conical-chikamu chevharuvhu inoenderana.Kazhinji mativi maviri e-conical-section, imwe ine yakafara koni angle uye imwe ine nhete koni-ekona, inogadzirwa nepamusoro uye pazasi penzvimbo chaiyo yekubatana, kuti igadzire nzvimbo yekubatana kusvika pahupamhi hwakakodzera (inonzi "kupfupisa" chigaro), uye kuita kuti iwanikwe zvakanaka maererano ne (yakafara) mating pamusoro pevhavha, kuitira kuti ipe chisimbiso chakanaka uye kutengesa kupisa, kana valve yakavharwa, uye kupa maitiro akanaka ekuyerera kwegesi kuburikidza nevhavha, apo yakazarurwa.
Injini dzisingadhuri dzinogona kunge dziine zvigaro zvevharuvhu zvinongochekwa kuita zvinhu zvehumburumbira musoro kana injini block (zvichienderana nekugadzirwa kweinjini).Dzimwe injini itsva dzine zvigaro zvakapfapfaidzwa pane kuti zvitsikidzwe mumusoro, zvichiita kuti dzive dzakatetepa, zvichiita kuti kupisa kwakanyanya kufambire kuburikidza nezvigaro zvevharuvhu, uye zvichiita kuti madzinde evharuvhu ashande pane tembiricha yakaderera, nokudaro zvichibvumira vharafu. madzinde (uye zvimwe zvikamu zvevhavhatrain) kuve matete uye akareruka.
Pane nzira dzinoverengeka idzo chigaro chevharuvhu chingave chakamisikidzwa zvisina kufanira kana kugadziridzwa.Izvi zvinosanganisira zvigaro zvisina kukwana panguva yekutsikirira nhanho, kukanganiswa kwenzvimbo dzinonzi denderedzwa revharuvhu zvigaro zvekuti ivo vanotsauka zvisingagamuchirwe kubva pakutenderera kana kutetepa, kurereka kwenzvimbo dzakagadzirwa zvine hukama neakisi yevhavha rinotungamira gomba, kutsauka kwenzvimbo yechigaro chevharuvhu kubva pakatikati. nemaburi ekutungamira vharafu, uye kutsauka kwechikamu chakagadzirwa checonical chechigaro chevharuvhu kubva pakona yekoni inodiwa kuti ienderane nepamusoro pevharuvhu.Automated quality control yezvigaro zvevharuvhu zvakaiswa nemuchina zvagara zvave zvakaoma kuwana kusvika pakuuya kwedigital holography iyo yakagonesa high-definition metrology yekuyera ese aya akatsauka akanyorwa.
| Zita rezvinhu | Main Properties | Notes | Temperature Range |
|---|---|---|---|
| VIRGIN PTFE | Yakanyanya kuderera coefficient ye friction uye yakanakisa makemikari kuramba. | FDA yakabvumidzwa | -40°C kusvika 260°C |
| 15% Girazi Yakazadzwa PTFE | Kuderera kwesimba rekumanikidza uye kuderera deformation pasi pemutoro kupfuura mhandara PTFE. | Abrasive zvinhu | -40°C kusvika 260°C |
| 25% Girazi Yakazadzwa PTFE | Zvakafanana ne15% Girazi zvirinani kupfeka kuramba, simba rekumanikidza repamusoro uye deformation yakaderera pasi pemutoro. | Abrasive zvinhu | -40°C kusvika 260°C |
| Stainless Simbi Yakazadzwa PTFE | Kupfeka kwakaoma zvakanyanya.Simba rakanakisa uye kugadzikana pasi pemitoro yakanyanyisa uye tembiricha yakakwira. | Inogona kushandiswa pane steam uye thermal fluid application | -40°C kusvika 260°C |
| TFM | Yakawanda denser polymer chimiro kupfuura Mhandara PTFE.Inoratidza zviri nani kupora kushushikana. | Yakagadziridzwa TFE Polymer | -40°C kusvika 260°C |
| Carbon Graphite yakazadza TFM | Kuderera kwekuwedzera kwekuwedzera-kuderedza mwero pane yakajairwa TFM. | Yakanakira kushandiswa pane steam uye thermal fluid application | -40°C kusvika 260°C uye kunyange 320°C paThermal Fluid applications |
| UHMWPE | Inopikisa zvakanyanya kumakemikari anoparadza, kunze kweoxidising acids uye organic solvents. | Iyo inozivikanwawo seHigh Modulus Polyethylene (HMPE) kana Yepamusoro Performance Polyethylene (HPPE) | -40°C kusvika +80°C |
| PCTFE | Yakanakira cryogenic uye Oxygen kushandiswa. | A homo-polymer yeChlorotrifluoroethylene | -270°C kusvika 260°C |
| Mhandara PEEK 450G | Yakanakisa makemikari kuramba uye mechanical zvivakwa pane yakakwirira tembiricha. | Iyo organic polymer thermoplastic | -40°C kusvika 260°C |
| Kabhoni Yakazadzwa PEEK | Zvizhinji zvakafanana zvivakwa kune Mhandara PEEK.Kunyanya kufanirwa kune yakakwirira tembiricha uye yakakwirira mitoro mamiriro. | Yakaderera coefficient ye friction uye yakakodzera kune akawanda anoparadza zvakanyanya maapplication | -40°C kusvika 260°C |
| PEEK HT | Inochengeta ese akakosha maficha uye mabhenefiti ePEEK 450G asi inochengetedza zvimiro zvemuviri kune tembiricha yepamusoro. | Inogona kupihwa mune ese ari mhandara asina kuzadzwa kana seakazadzwa akasanganiswa zvinhu | kusvika ku260 ° C |
| Acetal uye Delrin | Inoratidza kumira kwakanaka kwekupfeka uye deformation pasi pemutoro. | Yakanakisa kune mavharuvhu chigaro application | kusvika ku80°C |
| VESPEL | Iyo polyimide zvinhu zvine tembiricha yakakwira pasi pemutoro uye inonyanya kushandiswa pakupisa kupisa maapplication, magasi anopisa nemafuta. | Haifanirwe kushandiswa neSTEAM |
Nguva yekutumira: Jan-24-2019