Ukusetyenziswa kwetekhnoloji ye-plasma yomgubo wokutshiza kwi-valve yokutywina umphezulu wokwenziwa

Ukusetyenziswa kwetekhnoloji ye-plasma yomgubo wokutshiza kwi-valve yokutywina umphezulu wokwenziwa

A, iimpazamo ze-valve eziqhelekileyo kunye nezizathu ekusebenziseni i-valve kwinkqubo yeempazamo eziqhelekileyo zezi: 1. Ukujikeleza kwe-Stem akuguquki okanye ukujikeleza kwe-stem akuguquguquki okanye kugxininisekile, izizathu eziphambili zezi: ukupakisha uxinzelelo kunzima kakhulu; Ibhokisi yokupakisha ayikho umgangatho; I-valve stem kunye ne-stem bushing isebenzisa izinto ezifanayo okanye ukhetho lwempahla alufanelekanga; Umsantsa onganelanga phakathi kwesiqu kunye nehlathi; Ukugoba kwesiqu sevalve; Akufuneki uburhabaxa bomphezulu womsonto.
Okokuqala, ukungaphumeleli okuqhelekileyo kwevalve kunye nesizathu
Iimpazamo eziqhelekileyo ekusebenziseni iivalvu zezi:
1. Isiqu asijikelezi ngokuguquguqukayo okanye sibambekile
Ukujikeleza kwe-Stem akuguquki okanye kubambelele, izizathu eziphambili zezi: ukupakisha uxinzelelo olunzima kakhulu; Ibhokisi yokupakisha ayikho umgangatho; I-valve stem kunye ne-stem bushing isebenzisa izinto ezifanayo okanye ukhetho lwempahla alufanelekanga; Umsantsa onganelanga phakathi kwesiqu kunye nehlathi; Ukugoba kwesiqu sevalve; Akufuneki uburhabaxa bomphezulu womsonto.
2. Umphezulu wokutywina uyavuza
Ezona zizathu zokutywina ukuvuza komphezulu zezi: ukutywina umonakalo womphezulu, njengokujikela, ukuqhawuka, ukuqhawuka kocingo phakathi; Kukho ukungcola okufakwe phakathi kwendawo yokutywina okanye ikhonkco lokutywina alixhunyiwe kakuhle.
3. Ukupakisha kuyavuza
Isizathu sokupakisha ukuvuza kukuba: ukupakisha ipleyiti yoxinzelelo ayicinezeleki; ukupakisha okungonelanga; Ukupakisha ngenxa yokugcinwa kakubi kunye nokungaphumeleli; Ukungqukuva kwesiqu sevalve kudlula okuchaziweyo okanye umphezulu wesikhondo sevalve unemikrwelo, imigca, iinwele kunye neziphene ezirhabaxa; Ukupakisha iindidi, ubungakanani besakhiwo okanye umgangatho awuhambelani neemfuno.
4. Uqhagamshelwano phakathi komzimba wevalvu kunye nesivalo sevalvu iyavuza
Izizathu ezinokubakho zezi: ukuqiniswa kokungalingani kweebholithi kumalungu eflange kubangela ukuthambeka kweflange, okanye ukungonelanga kokuqina kweebholiti, kunye nomonakalo kumphezulu wokudibanisa womzimba wevalve kunye nesivalo sevalvu; I-gasket yonakaliswe okanye ayihambelani neemfuno; Umphezulu odibeneyo weFlange awuhambelani, umphezulu we-flange machining awulungile; I-Stem bushing kunye ne-stem threading machining ingalunganga ikhokelela ekuthambekeni kwesivalo sevalvu.
5. Isango liphazamisa isigqubuthelo sevalvu
Xa i-valve yesango ivulwa kwisimo esivulekile ngokupheleleyo, ngamanye amaxesha isango alikwazi ukuvulwa ngokupheleleyo, kwaye ukuphazamiseka phakathi kwesango kunye nesivalo sevalve kwenzeka. Isizathu kukuba isango alifakwanga ngokuchanekileyo okanye ijometri yesivalo sevalve ayihambelani neemfuno ezichazwe kumgangatho.
6. Inkunzi yegusha ayivalwanga nkqi
Izizathu eziphambili zolu hlobo lwesimo zezi: amandla okuvala ayanele; Phakathi kwesihlalo sevalve kunye nesango libe yimfumba; Umphezulu wokutywina wevalve awulungiswanga kakuhle okanye wonakaliswe.
7. Eminye imiba, efana ne-trachoma kunye nokutywinwa kwendawo yokutywina okubangelwa ukuphosa iziphene, kuya kuchaphazela ukusetyenziswa okuqhelekileyo kwevalve, kwaye amanyathelo ahambelanayo kufuneka athathwe ukuze asombulule.
Eyesibini, ivalve yesisombululo sempazamo eqhelekileyo
Ngokwezi ziphoso zingentla, iindlela ezahlukeneyo kufuneka zithathwe ukuze zizisombulule ngokweyona meko. Izisombululo ezithile zibonisiwe kwitheyibhile.
Okwesithathu, sisigqibo
Ukuqinisekisa ukusetyenziswa okuqhelekileyo kwevalve, ukongeza ngokungqinelana nokuqinisekisa ukuba unobangela wempazamo yenzeke ngokuchanekileyo kunye nokuhlalutya, kwaye uthathe amanyathelo ahambelanayo ukuyisombulula, kufuneka ukomeleze ulawulo lwevalve, wenze ukugcinwa kwemihla ngemihla kunye nomsebenzi wokuhlola. , njengokunciphisa ukungaphumeleli kwevalve kunye nokunyusa izinga lengqibelelo yevalve, yenza ukuba idlale ngakumbi kwizibuko lokulayisha kunye nokukhupha imveliso yokusebenza.
Ukusetyenziswa kwetekhnoloji yePlasma yomgubo wokutshiza itekhnoloji yokutywina kwivalvu yokutywina umphezulu wokwenza inkqubo ye-PPW endaweni ye-arc ye-arc ye-manual (okanye i-flame flame ebusweni), ** inokunika ukudlala ngokupheleleyo kwiimpawu zenkqubo ye-PPW, kwaye ibonise iingenelo ezizodwa. Oku kungenxa yokuba umphezulu wokutywina wevalve "yintliziyo" yevalve, inkqubo yokwenziwa kwevalve yokutywinwa komphezulu kunye nezixhobo zihambelana ngokuthe ngqo kumgangatho kunye nobomi benkonzo yevalve, kodwa zikwanxulumene neendleko zokwenziwa kwevalve. Umphezulu wokutywina wevalve ufuna uluhlu oluthile lobunzima kunye nobunzima obufanayo, ukuxhathisa okulungileyo kwe-abrasion kunye nokuchasana okuthile kokubola, kunye nokubunjwa kwe-alloy nayo ineemfuno ezihambelanayo.
Uncedo lwesicelo kwi-valve yokutywina umphezulu wokwenziwa komgangatho
Ukusebenzisa inkqubo ye-PPW endaweni ye-arc ye-arc ye-manual (okanye i-flame flame surfacing) kwi-valve yokutywina umphezulu wokwenziwa kwe-valve, ** inokunika umdlalo opheleleyo kwiimpawu zenkqubo ye-PPW, kwaye ibonise inzuzo eyodwa. Oku kungenxa yokuba umphezulu wokutywina wevalve "yintliziyo" yevalve, inkqubo yokwenziwa kwevalve yokutywinwa komphezulu kunye nezixhobo zihambelana ngokuthe ngqo kumgangatho kunye nobomi benkonzo yevalve, kodwa zikwanxulumene neendleko zokwenziwa kwevalve. Umphezulu wokutywina wevalve ufuna uluhlu oluthile lobunzima kunye nobunzima obufanayo, ukuxhathisa okulungileyo kwe-abrasion kunye nokuchasana okuthile kokubola, kunye nokubunjwa kwe-alloy nayo ineemfuno ezihambelanayo.
Ngomthamo omkhulu kunye noluhlu olubanzi lobushushu obuphakathi kunye neevalvu zoxinzelelo kunye neevalvu zoxinzelelo oluphezulu, iivalve ezixhathisa ukubola, indawo yokutywina yenziwe ngokusisiseko kwi-alloy surfacing. Ngenxa yezinga eliphezulu lokuhlanjululwa kwesiseko sesinyithi, i-arc yomgangatho omnye ayinakukwazi ukuhlangabezana neemfuno zobunzima kunye nokubunjwa kwe-alloy. Ngokuqhelekileyo, iileya ezi-2-3 kufuneka zibe ngaphezulu. Indawo yokutywinwa yobushushu obuphezulu kunye nevalve yoxinzelelo oluphezulu kunye nevalve enganyangekiyo kwi-corrosion idinga ukuvela kwesiseko se-cobalt ebiza kakhulu okanye i-nickel base alloy, ukusetyenziswa kwe-manual surfacing, ukusetyenziswa kwezinto eziphantsi, kunye nomgangatho kunzima ukuqinisekisa. I-manual surfacing imbi kakhulu kwaye ubungakanani bokusika ngoomatshini bukhulu, nto leyo ikwayenye yezinto ezichaphazela iindleko zokwenziwa. Inkqubo yePPW yamkelwe, kwaye iimpawu zayo zenkqubo zisisisombululo esilungileyo sokusombulula iingxaki ezininzi zokujonga umphezulu wevalve yokutywina:
Itekhnoloji yePlasma yomgubo we-welding ineenzuzo
I-1, ngenxa yokuba i-metal dilution rate yesiseko inokulawulwa, i-monolayer spray welding inokufezekisa iimfuno zobunzima obufanayo kunye nokubunjwa kwe-alloy, gcina inani le-alloy.
I-2, ifaneleke ngakumbi ukutshiza isiseko se-cobalt ebiza kakhulu kunye ne-nickel base alloy, i-welding layer ye-spray enomgangatho olungileyo, izinga eliphezulu lokusetyenziswa kwe-alloy, kungekhona ukuqinisekisa umgangatho kunye nokunciphisa ixabiso lokuvelisa umphezulu wokutywina.
I-3, ngenxa yokuba i-welding layer ye-spray yenziwe kakuhle, ubuso buhamba kakuhle kwaye bugudileyo, ubungakanani bokubumba bunokulawulwa ngokuchanekileyo, ngoko kulula ukusika kunye nokunciphisa ixesha lokusebenza lokucubungula ngoomatshini.
4, ukusetyenziswa kwe-iron alloy spray welding endaweni ye-manual surfacing 2Cr13 ayifuni kunyango lwe-annealing, ukuphelisa inkqubo yokucima - ukucima.
I-5, imveliso ephezulu esebenzayo, ingaphezulu kwamaxesha ama-3 e-surfacing manual.
Ngenxa yezi zibonelelo zingentla, ngoko kwinkqubo yokuvelisa i-valve ye-PPW, umgangatho, ukusebenza kakuhle, ukusetyenziswa okuphantsi kwendlela yokuvelisa, ineenzuzo eziphezulu zentlalo kunye neenzuzo zezoqoqosho ngokuthe ngqo.
Uhlalutyo lwezoqoqosho
Ngomthamo omkhulu kunye noluhlu olubanzi lweqondo lokushisa eliphakathi kunye nevalve yoxinzelelo (imveliso yonyaka yelizwe ngamakhulu amawaka eetoni), okwangoku abaninzi abavelisi basebenzisa i-2Cr13 elula kunye ne-manual. Ingaba inkqubo ye-PPW ingathatha indawo ye-manual yokujonga i-2Cr13 kuxhomekeke ekubeni iindleko zokutywinwa zinokuncitshiswa.
Iindleko zokwenziwa komphezulu wokutywina zibandakanya ikakhulu:
(1) Iindleko zezixhobo zokujonga phezulu; (2) iindleko zabasebenzi zokujonga phezulu; (3) Iindleko zokutshiza zomaleko wokujonga; (4) Iindleko zokunyanga ukushisa, njl. Hlalutya uqoqosho ngokubhekiselele kwezi mpawu ze-4 ngoku.
1. Iindleko zezixhobo zokujonga phezulu
Iindleko zezixhobo zokujonga i-surfacing ikakhulu zichongwa ngokusetyenziswa kwezinto ezibonakalayo kunye nexabiso lezinto eziphathekayo. Kukho iimfuno zokuyila ubukhulu kunye nobubanzi boluhlu oluphezulu kwindawo yokutywina yohlobo oluthile lwevalve, kwaye ukusetyenziswa kwezinto ezingaphezulu kuxhomekeke kwizinga lokusetyenziswa kwe-alloy. Izinga lokusetyenziswa kwe-alloy ye-surfacing ixhomekeke kwisantya sokuhlanjululwa kunye nokubonakala kwembonakalo yesiseko sesinyithi. Ngenxa yomgangatho ophezulu wokuhlanjululwa kwesiseko sesinyithi se-arc ye-arc eyenziwe ngesandla, kuthatha ngaphezulu kwamaxesha amabini okujonga phezulu ukuhlangabezana neemfuno, ngoko ke ubukhulu boyilo lwemveliso egqityiweyo yomaleko ongaphezulu bukhulu kune-3mm. Inkqubo ye-PPW, izinga lokuhlanjululwa kwesinyithi liphantsi, nje ukuba i-welding kanye iya kuhlangabezana neemfuno, ubungakanani boyilo lwemveliso egqityiweyo yomgangatho ongaphezulu bungancitshiswa ukuya kwi-2mm. Ngenxa yokungajongwa kakuhle kwezandla, ukungalingani, ubukhulu becala butyebe ngakumbi kwaye banzi, umyinge wokusetyenziswa komaleko wealloyi ongaphezulu * umalunga nama-40%. Izinga lokusetyenziswa kwe-alloy surfacing layer yinkqubo yePPW inokufikelela kuma-70%.
I-arc ye-manual surfacing isusa i-electrode coating kunye nentloko ye-electrode, kwaye izinga lokusetyenziswa kwezinto eziphathekayo ngu-70%, ngelixa izinga lokusetyenziswa kwe-PPW i-alloy powder lingafikelela kwi-95%.
Itheyibhile 1 ithelekisa ukusetyenziswa kwezinto eziphathekayo kunye neendleko eziphathekayo zeenkqubo ezimbini zokujonga phezulu. Uhlalutyo kunye neziphumo zokuthelekisa zibonisa ukuba nangona i-electrode inexabiso eliphantsi kunomgubo we-alloy, ngenxa yezinga eliphantsi lokusetyenziswa kwe-electrode manual surfacing, ubunzima bezinto ezisetyenzisiweyo bungaphezu kwe-3 amaxesha enkqubo ye-PPW, ngoko ke ixabiso lezinto eziphathekayo ze-arc manual. Ubuso buphindwe nge-1.9 kunenkqubo yePPW. Lo ngumfanekiso omangalisayo kakhulu. Ukuba i-electrode ye-2Cr13 iyonke esetyenziswa ngumzi-mveliso wevalvu nganye yi-100T minyaka le, ixabiso lemathiriyeli yi-3.3 yezigidi zeerandi. Ngenkqubo ye-PPW, ukusetyenziswa kwe-iron base ye-alloy powder yi-33T, kunye neendleko eziphathekayo malunga ne-1.82 yezigidi, ngoko ke iindleko zezinto eziphathekayo ziya kugcinwa kwi-1.48 yezigidi ze-RMB.
Indlela yokufaka i-welding
Iprojekthi yeendleko Inkqubo yePPW
Ukujonga i-arc ngesandla ye-Fe-base alloy ngokutshiza i-welding
2Kr13
Ubunzima obusebenzayo be-alloyi yokujonga ubuso bokutywina, Kg11.5
Ireyithi yokusetyenziswa kwealloyi yomaleko ongaphezulu yi-70% 45%
Ubunzima bengxubevange yomaleko ongaphezulu,Kg1.433.33
Umyinge wokusetyenziswa kwezinto ezingaphezulu, %95%70%
Ukusetyenziswa kwemathiriyeli ye-alloy ebusweni, Kg1.54.76
Ixabiso leyunithi yezinto ze-alloy yi-5,533 yuan / kg
Iindleko zezinto, 82.5157 yuan
Ixabiso lezinto eziphathekayo kumlinganiselo weendleko 11.9
2. Iindleko zabasebenzi zokubeka i-welding
Ixabiso lexesha lokujonga phezulu lixhomekeke ekusebenzeni kakuhle kwemveliso yabasebenzi ngamnye. Zombini ukuvela kwearc yezandla kunye nokuvela kwePPW kufuna umsebenzi omnye kuphela ukuba asebenze. Ubungakanani obuphezulu bomsebenzi omnye kwishifti ye-arc yezandla malunga ne-12Kg nge-avareji, ngelixa inkqubo ye-PPW inokufikelela kwi-20Kg. I-arc ye-manual surfacing ukuba ii-RAMS ezili-12 zijongene nomsebenzi omnye kwishifti nganye, inkqubo ye-PPW inokutshiza i-weld 60 RAMS, kwaye ukusebenza kakuhle kwemveliso kukuphinda-phindwe ka-5 kwe-arc ye-manual. Ukuba ixabiso leyure lokujonga umbane wedwa li-10 yuan ngeqhekeza ngalinye, iindleko zeyure zenkqubo yePPW ziiyuan ezi-2 ngeqhekeza *. Iindleko zexesha lokutshisa i-surfacing welding ziyancipha kakhulu.
3. Iindleko zokutshiza zomaleko wokujonga
Ngenxa yenkqubo ye-PPW, i-welding layer ye-spray ilula kwaye igudileyo, kwaye inani lokusika lincinci. Nangona ubunzima be-welding layer buphuculwe, ukusika okuqhubekayo kunokufezekiswa ngaphandle kokusika. Ixesha lilonke lomatshini lisezantsi kunelo lokujonga umbane wezandla, kwaye iindleko zomatshini zincitshiswa malunga ne-20%.
4. Iindleko zokunyanga ubushushu
I-2Cr13 eyenziwe ngesandla yombane, ngokwenkqubo yokwenziwa, emva kokuba i-surfacing igqityiwe, umaleko we-welding unzima kakhulu ukuba ungasetyenzwa, ngoko unokusetyenzwa ngonyango lwe-annealing. Emva komatshini, ukuze kufezekiswe ubunzima bomhlaba wokutywina, kufuneka ucinywe kwi-frequency high and then ground. Iifektri ezininzi zevalve azinikeli ngqalelo kumgangatho wokutywinwa komphezulu, ukusetyenzwa koomatshini, akusekho unyango lokucinywa kwe-frequency ephezulu, ngoko ke ukuqina komphezulu wokutywina kuphantsi, ukunganyangeki kwe-abrasion kubi.
Inkqubo ye-PPW, ukutshiza ubulukhuni be-welding ingaphakathi koluhlu lweemfuno ezichaziweyo, akufuneki ukuba uhambe ngonyango lobushushu (i-alloy ye-welding yokutshiza ayicinywa), kodwa icutshungulwe ngokuthe ngqo kwiimveliso ezigqityiweyo, inokugcina ukusetyenziswa kwamandla, kulula ukubonakala iingxaki zomgangatho we inkqubo yonyango lobushushu. Inkqubo ye-PPW, ayiphuculi kuphela umgangatho wevalve yokutywinwa komphezulu, kodwa inciphisa iindleko zokwenziwa.
Ukususela kuhlalutyo olungentla lwezoqoqosho lokutywinwa kweendleko zokuvelisa umgangatho, kunokuboniswa ukuba inkqubo ye-PPW kwisicelo sokuvelisa i-valve ineenzuzo zokuphucula umgangatho, ukunciphisa iindleko, ukuphucula ukusebenza kakuhle kunye nokunye. Ukuba inkqubo ye-PPW inokuthi yaziwe kwaye isetyenziswe kwishishini lokwenziwa kweevalvu ukuze kuthathelwe indawo indawo yokujonga umbane ngasemva, iinzuzo ezicacileyo zentlalo nezoqoqosho ziya kufumaneka.