Ivalve yokutywina umphezulu wokutshiza welding yealloy process process valve uthe: andiyazi ndingayisebenzisa njani

Ivalve yokutywina umphezulu wokutshiza welding yealloy process process valve uthe: andiyazi ndingayisebenzisa njani

Inkqubo yokusetyenzwa kwe-valve yokutywinwa komphezulu we-welding i-alloy inamanyathelo amane:
Ukulungiswa ngaphambi kokwakhiwa, ngaphandle kokulahla kwangaphambili, ukutshiza kunye nokutshiza emva kokulahlwa.
(a) Lungisa izinto
Ukuqinisekiswa kwedatha, izinto, izixhobo kunye neenkqubo.
Ngaphambi kokuba inkqubo iqonde imeko eyinyani kunye nezakhono zesicelo sokutshiza sokutshiza,
1, ubukhulu bengubo. Njengesiqhelo, emva kokutshiza kufuneka ayeke ukucutshungulwa komatshini, ukutyeba ukutyeba kuya kugcinelwa isibonelelo sokusebenza, kodwa kwakhona kuthathelwe ingqalelo ukwandiswa kwe-thermal kunye nokucutha kokutshiza.
2, ukuqinisekiswa kwedatha yokugquma. Ngokokhetho kukuba idatha yokugquma kufuneka yaneliswe ngolwazi lwe-workpiece etshiziweyo, isicelo esiqhelekileyo, isicelo sezakhono kunye nesiseko somcimbi, umaleko odibeneyo kunye nedatha yomaleko iyahlukana.
I-3, iiparamitha ezithile: uxinzelelo, ubungakanani bomgubo, umpu wokutshiza kunye nesantya sokuhamba komsebenzi.
(2) ukulahlwa kwangaphambili kwendawo yokusebenza ngaphandle
Ukulungiswa kwangaphandle yinkqubo yoxinzelelo lwamandla adibeneyo engubo kunye ne-matrix
I-1, unyango lokusika i-concave, kukho umaleko odiniweyo kunye namanqaku amakhulu oxinzelelo lwe-groove ngaphandle, phantsi kwesiseko sokunyamezela amandla, unokuyeka ukusika ukulahla, unikeze indawo equkayo yokutshiza nge-thermal.
I-2, ukucoca ngaphandle, ukuphelisa ukungcoliswa kweoli, i-rust, i-peint layer, ukwenzela ukuba i-workpiece yangaphandle icoceke, ipeyinti yokungcola kweoli inokususwa kunye ne-agent yokucoca i-solvent, ukuba i-oyile ingene kwidatha ye-matrix, inokususwa ngokufudumeza komlilo. , umaleko womhlwa unokuyeka ukuvuza kwe-asidi, ukugaya umatshini okanye ukususwa kokuqhuma kwesanti.
3, i-coarsening yangaphandle, injongo kukomeleza amandla adibeneyo wokugquma kunye ne-matrix, ukuphelisa impembelelo yoxinzelelo, ukusetyenziswa okunqabileyo kwe-sandblasting, i-tank evulekileyo, ukutsala iinwele,
A: Ukugqabhuka kwesanti yeyona nto inqabileyo, isanti ingakhetha isanti yequartz, isanti ye-alumina, isanti yentsimbi ebandayo, imathiriyeli yesanti ukuya ebukhali kwaye yomelele, kufuneka icoceke kwaye yome, imiphetho ebukhali kunye neekona. Ubungakanani bayo, ubungakanani boxinzelelo lwe-atmospheric, i-Angle yokuqhushumba, ikhefu, kunye nexesha kufuneka limiswe ngokwemeko ethile.
B: Ifakwe, i-ribbed, i-roller. Kunyango olurhabaxa lwe-shaft kunye nomatshini we-sleeve ngaphandle, i-groove ingasetyenziselwa ukulahla i-mosquito ye-snail yemoto, kwaye uburhabaxa be-groove kunye ne-rib ngaphandle ifanelekile kwi-RA6.312.5. Akukho arhente yokupholisa kunye nokunyakamisa kongezwa kwinkqubo yokujongana nombambo wokusebenzela wetanki, enokuthi iqengqeleke ipateni ngaphandle, kodwa ithintele iikona ezibukhali.
C: I-workpiece enobunzima obuphezulu inokumisa umzobo we-EDM kunye nokuqina. Nangona kunjalo, i-workpiece yokwambathisa obhityileyo kufuneka isetyenziswe ngononophelo. Indlela ye-EDM yokutsala iinwele isebenzisa i-nickel wire okanye ucingo lwe-aluminium njenge-electrode. Ngaphantsi kwempembelelo ye-arc, idatha ye-electrode kunye nangaphandle kwe-matrix ixutywe ngokuyinxenye, okubangela ukuba ngaphandle kwe-coarse. Emva kokubonakala kwe-coarsening entsha yangaphandle, kufuneka kuthintelwe ukuhlanjululwa, kuthintelwe ngokungqongqo ukuba kuthintelwe, kugcinwe kwindawo ecocekileyo, eyomileyo, ukugquma ngokukhawuleza emva kokutshiza, njengesiqhelo ixesha lokutshiza alidluli iiyure ezimbini.
4. Isigqubuthelo samalungu angatshiziyo
Ukutshiza ngaphandle kufuphi nokutshiza, i-cover kufuneka ikwazi ukusebenzisa ilaphu leglasi elimelana nobushushu okanye i-asbestos kunye nomqobo, imfuno ngokuhambelana nempendulo yokutshintsha komatshini xa isigqubuthelo se-clamp, kodwa kukuhlawula ingqalelo engakumbi kwidatha ye-fixture kufuneka ibe namandla athile. , kwaye oko kuthetha ukusetyenziswa okuncinci kwe-alloy ephantsi yokunyibilika kwe-alloy, hleze ukuhlanjululwa kwe-alloy, i-keyway ngaphandle, ukujongana nomngxuma weoli ye-matrix ayivumeli inxalenye yesitshizi, njenge-Inokuvalwa ngebhloko yegraphite okanye i-chalk flat okanye kancinci. phezulu kunomphandle. Emva kokutshiza ukuphelisa, nikela ingqalelo kumonakalo wokugquma, imiphetho kunye neekona ukuba zibuthuntu.
(3) Ukutshiza
Tshisa iqondo lobushushu ukuya kuma 100 ukuya kuma 200 degrees celcius phambi kokutshiza ukunciphisa umahluko wobushushu. Iziqwenga ezincinci ziyakwazi ukufudumeza kwi-oven.
Tshaza umaleko odityanisiweyo wolawulo lokumisa phakathi kweengcingo ezilishumi ukuya kucingo olungamashumi amabini, umgubo ongenacala okanye osemantla edangatye lekhabhoni, emva kokuthumela indibano yomlilo obomvu oqaqambileyo, kunye nomsi ozuba nobomvu. Ukuba isiphelo umbala omhlophe oqaqambileyo, cacisa ukuba kukho imiqondiso yokulimala kufuneka ilungiswe idangatye okanye ukunciphisa ubungakanani bepowder, ukuba ubumnyama obomvu, cacisa ukuba akukho ukunyibilika, ukwandisa ilangatye, ukulawula inani le powder kunye nesantya sokuhamba. Ukuba i-dosage yomlilo kunye nomgubo iyasebenza, ubukhulu bepowder bunokutshintshwa kunye nomxholo we-nickel, kwaye i-powder equkethe i-nickel ingatshintshwa ibe ngumgubo onqabileyo okanye umgubo kunye nenani elikhulu le-nickel. Ukutshiza kufuneka kube perpendicular ukutshiza ngaphandle, ikhefu kulawulo jikelele kwi 180200MM.
Ukutshiza umaleko wezinto: emva kokutshiza umaleko odibeneyo ukususa umgubo wothuthu kunye nefilimu ye-oxide ngebrashi yocingo, ukusetyenziswa komgubo wentsimbi kunye nelangatye le-carbonization yasentla, ukusetyenziswa komgubo wobhedu kufuneka kusetyenziswe idangatye elingathathi hlangothi, kunye nokusetyenziswa kwe-nickel powder phakathi kwezi zibini. , kuxhomekeke kwisazisi kunye notshintsho. Ulawulo lwekhefu phakathi kwe-180200MM, ikhefu lokutshiza likhulu kakhulu, ubushushu bokunyibilika buphantsi, izinga liyacotha kwaye amandla akonelanga, amandla adibeneyo aphantsi, isakhiwo sikhululekile, ikhefu lokutshiza lincinci kakhulu, umgubo awungeneli. , amandla empembelelo anamandla abuyele, umphumo wokuqokelela uphantsi, amandla adibeneyo aphantsi. Izinga lokuhamba, ngenxa ye-70150MM / S, ukuba ilinganiswe nge-thermometer, kwii-degrees ezingama-250 kufuneka iyekwe ukutshiza.
Emva kokutshiza i-workpiece yokupholisa: ixesha lokupholisa, ukunyanzeliswa kukuthintela ukubola kwengubo kunye nokuguqulwa kwendawo yokusebenza. Ngokukodwa kwezinye iimilo ezikhethekileyo, amanyathelo okuthintela kufuneka athathwe, njengokupholisa kwendalo kwe-axis ende kwicala lomatshini, okanye ukuxhoma ngokuthe nkqo ukupholisa.
(4) Ukulahlwa emva kokutshiza
Umngxuma wokutywina, ukusetyenzwa koomatshini kunye nezinye iinkqubo.
Iiakhawunti zokwaleka malunga neshumi elinesihlanu leepesenti zomthamo, i-porosity kunye nengcamango yepore yezinye eziqhagamshelwe kumatshini wayo ogqwesileyo weperi yokukhuhlana, unokubetha ukubeka umatshini kwindawo egudileyo emva kweoyile yokutshiza, ukusetyenziswa kwepore reservoir kunenzuzo ukugudisa, kodwa jongana nayo. Umatshini wokwenza amanzi, ipore kunye nokuvuza lula, jongana nawo emva kokutshiza, kufuneka usebenzise iarhente yokuvala umngxuma yokuvala umngxuma wokuvala umngxuma.
Isicelo se-arhente yokutywina: ukunyanzeliswa okulungileyo, ukuchasana kweekhemikhali, akukho kutshatyalaliswa, akukho metamorphosis. Umsebenzi ozinzileyo kwiqondo lokushisa, unokomeleza umsebenzi wokugquma, i-wax enqabileyo, i-epoxy, i-phenolic kunye nokunye.
Xa ukuchaneka kwe-dimensional emva kokutshiza kunye noburhalarhume bangaphandle abukwazi ukwaneliseka ngesicelo, kuyimfuneko ukumisa ukucutshungulwa komatshini, unokusebenzisa ukujika okanye ukugaya.
I-Valve ithe: andiqhelananga nendlela endinokuthi ndisebenzise ngayo iimfuno zam zokuvuza kwevalve esikiweyo zisezantsi kangangoko, ukuvuza kwevalve ethambileyo kuphantsi ngokwentelekiso, ukunqunyulwa kwesiphumo kulungile, kodwa kunganxibi, ukuthembeka okulambathayo.
Okukhona isezantsi imfuneko yokuvuza kwevalve esikiweyo, kokukhona ukuvuza kwevalve ethambileyo yokutywina kusezantsi kakhulu, isiphumo sokunqunyulwa silungile ngokuqinisekileyo, kodwa asikwazi ukumelana, ukuthembeka okulambathayo.
1. Kutheni kulula ukushukuma xa ivalve enezihlalo ezibini ivulekile?
Ngondoqo omnye, xa i-medium is flow open type, ukuzinza kwevalve kulungile; Xa i-medium ivaliwe, ukuzinza kwevalve kubi. I-valve yesitulo esiphindwe kabini sine-spool ezimbini, i-spool esezantsi ikwi-flow evaliweyo, i-spool ephezulu ikwi-flow evulekileyo, ngoko ke, kumsebenzi omncinci wokuvula, ukuhamba okuvaliweyo kohlobo lwe-spool kulula ukubangela ukungcangcazela kwevalve, oku. sisizathu sokuba ivalve yesitulo esiphindwe kabini ingasetyenziselwa umsebenzi omncinci wokuvula.
2. Kutheni ivalve yokutywina kabini ingenakusetyenziswa njengesivalo esisikiweyo?
I-advanteji ye-spool ye-valve yezihlalo ezibini yeyokuba i-force balance structure ivumela ukuba umahluko woxinzelelo ube mkhulu, ngelixa i-disadvantage yayo ebalaseleyo kukuba iindawo ezimbini zokutywina azikwazi ukudibanisa kakuhle ngexesha elinye, okubangela ukuvuza okukhulu. Ukuba isetyenziswe ngokunyanzeliswayo kunye nokunyanzeliswa ukunqumla umcimbi, ngokucacileyo umphumo awulungile, nokuba wenze uphuculo oluninzi (njenge-valve ye-sleeve yokutywina kabini), ayinqweneleki.
I-3, yeyiphi i-stroke echanekileyo yokulawula ukusebenza kwevalve engalunganga, ukusebenza kwe-Angle stroke blocking valve kulungile?
I-spool yevalve yestroke ethe nkqo ibethe nkqo, kwaye indawo ephakathi ihamba ethe tye ukungena nokuphuma kumjelo wevalve yegumbi kufuneka ijike umva, ukuze indlela yokuhamba kwevalvu ibenzima kakhulu (imilo efana nodidi oluthi "S" olujijelweyo). Ngale ndlela, kukho iindawo ezininzi ezifileyo, ezibonelela ngesithuba semvula yemvula ephakathi, kwaye ekuhambeni kwexesha, kubangela ukuvala. Icala le-Angle stroke valve throttling licala elithe tye, i-medium iqukuqela ingene kwaye iphume ngokuthe tye, kwaye kulula ukuyithatha indawo engacocekanga. Ngexesha elifanayo, indlela yokuhamba ilula, kwaye indawo yemvula ephakathi incinci kakhulu, ngoko i-valve ye-Angle stroke inomsebenzi omhle wokuthintela.
4. Kutheni isiqu sevalve elawulayo esithe ngqo sibe bhityile?
Ibandakanya umgaqo olula womatshini: i-sliding friction enkulu kunye ne-rolling encinci. Ivalve yevalve ethe tye isikhondo phezulu nasezantsi intshukumo, ipakisha icinezelwe kancinci, iya kubeka isikhondo sevalve esongelwe ngokuqinileyo, ivelise umahluko omkhulu ngasemva. Ngenxa yesi sizathu, i-valve stem yenzelwe ukuba ibe yincinci kakhulu, kwaye ukupakishwa ngokuqhelekileyo kusetyenziswa kunye ne-coefficient encinci yokupakisha i-PTFE yokupakisha, ukuze kuncitshiswe i-backdifference, kodwa ingxaki kukuba i-valve stem incinci, kulula ukugoba. , kwaye ubomi bokupakisha bufutshane. Ukusombulula le ngxaki, indlela engcono kukusebenzisa isiqu sevalve yokuhamba, eyile i-Angle stroke uhlobo lwevalve elawulayo, isiqu sayo sevalve ngama-2 ~ 3 amaxesha atyebileyo kunesikhondo sevalve ethe tye, kunye nokukhetha isigcwali sobomi obude begraphite. , ukuqina kwesiqu kulungile, ukupakisha ubomi bude, i-torque ye-friction incinci, umehluko omncinci wokubuya.
5. Kutheni umahluko woxinzelelo olusikiweyo wevalve yeAngle stroke umkhulu?
Ivalve yohlobo lwe-angular stroke inqumle umahluko woxinzelelo mkhulu, kuba i-medium kwi-spool okanye ipleyiti yevalvu isiphumo samandla kwi-torque ye-rotation shaft incinci kakhulu, ke ngoko, inokumelana nomahluko omkhulu woxinzelelo.
6. Kutheni le nto ubomi benkonzo yomthombo wamanzi akhupha ityuwa bufutshane nevalve yerabha yebhabhathane kunye nefluorine lined diaphragm valve bufutshane?
Isiphakathi samanzi sokugalela ityuwa siqulethe i-asidi ephantsi okanye i-alkali, inomhlwa omkhulu kwirabha. I-corrosion ye-rubber ibonakala ngokunyuka, ukuguga kunye namandla aphantsi. Ukusetyenziswa kwevalve yebhabhathane kunye nevalve yediaphragm efakwe irabha imbi. Undoqo kukuba irabha ayixhathisi kukuhlwa. Emva kokuba ivalve ye-rubber lining diaphragm iphuculwe ukuxhathisa umhlwa kwevalve ye-fluorine efakwe kwi-diaphragm, kodwa i-diaphragm yevalve ene-fluorine ene-diaphragm ayikwazi ukuma phezulu naphantsi ukusonga kunye nokwaphukile, okukhokelela kumonakalo womatshini, ubomi bevalve bufutshane. Ngoku indlela engcono kukusebenzisa amanzi ukunyanga ivalve yebhola, ingasetyenziselwa iminyaka emi-5 ukuya kwe-8.
7. Kutheni ivalve yokusika kufuneka itywinwe ngamandla kangangoko?
Okukhona isezantsi imfuneko yokuvuza kwevalve esikiweyo, kokukhona ukuvuza kwevalve ethambileyo yokutywina kusezantsi kakhulu, isiphumo sokunqunyulwa silungile ngokuqinisekileyo, kodwa asikwazi ukumelana, ukuthembeka okulambathayo. Ukusuka ekuvuzeni kunye nokuncinci, ukutywinwa kunye nomgangatho ophindwe kabini othembekileyo, itywina elithambileyo elisikiweyo lingcono kunetywina eliqinileyo elisikiweyo. Njengomsebenzi opheleleyo we-valve yokulawula i-ultra-light, itywinwe kwaye ifakwe ngokhuseleko lwe-alloy-resistant-resistant, ukuthembeka okuphezulu, izinga lokuvuza kwe-10 ~ 7, liye lakwazi ukuhlangabezana neemfuno zevalve yokusika.
8. Kwakutheni ukuze isivalo somkhono sithathe indawo yevalve yesitulo esinye nesiphindwe kabini kodwa ingayiphumezi injongo yayo?
Ivalve yomkhono, eyaphuma ngeminyaka yoo-1960, yayisetyenziswa kakhulu ekhaya nakumazwe aphesheya ngeminyaka yoo-1970, kunye nevalve yomkhono kwiplanti yepetrochemical eyaziswa ngeminyaka yee-1980 yabalelwa kumlinganiselo omkhulu. Ngelo xesha, abantu abaninzi babekholelwa ukuba ivalve yomkhono ingathatha indawo yevalve yesitulo esinye kunye nesibini kwaye ibe sisizukulwana sesibini seemveliso. Namhlanje, oku akunjalo, ivalve yesitulo esinye, ivalve yesitulo esiphindwe kabini, ivalve yesitulo isetyenziswa ngokulinganayo. Oku kungenxa yokuba ivalve yomkhono iphucula kuphela imo yokugobhoza, uzinzo kunye nokugcinwa ngcono kunevalve yesitulo esinye, kodwa ubunzima bayo, izikhombisi zokuvala kunye nokuvuza ziyahambelana nevalve yesitulo esinye kunye nesiphindwe kabini, ingayibuyisela njani ivalve yesitulo esinye nesiphindwe kabini. ? Ngoko ke, kufuneka kwabelwane ngayo.
9. Kutheni ukukhetha kubaluleke ngaphezu kokubala?
Ukubala kunye nokukhetha xa kuthelekiswa, ukhetho lubaluleke kakhulu, lunzima kakhulu. Ngenxa yokuba ukubala kuyindlela elula yokubala ifomyula, ayixhomekeke ekuchanekeni kwefomula ngokwayo, kodwa ekuchanekeni kweeparitha zenkqubo enikeziweyo. Ukukhethwa kubandakanya umxholo omninzi, ukungakhathali kancinci, kuya kukhokelela ekukhethweni okungafanelekanga, kungekhona nje ukubangela inkunkuma yabasebenzi, izixhobo eziphathekayo, izibonelelo zemali, kunye nokusetyenziswa kwempembelelo ayifanelekanga, kuzisa inani leengxaki zokusetyenziswa, ezifana nokuthembeka. , ubomi, umgangatho wokusebenza, njl.