Cov txheej txheem ntawm finning yog ua cov txheej txheem ntawm ib qho fins nrog lub punch ua ntej, thiab tom qab ntawd siv phau ntawv lossis cov txheej txheem txheej txheem los npog cov fins rau sab nrauv ntawm cov yeeb nkab raws li qee qhov suab (fin pitch) los ntawm kev cuam tshuam. Nws yog txoj kev ntxov tshaj plaws los ua cov raj finned. Vim yog cov txheej txheem yooj yim, cov kev xav tau tsawg, tus nqi qis thiab kev saib xyuas yooj yim ntawm cov khoom siv, ntau lub Hoobkas tseem siv nws. Cov txheej txheem no yog cov txheej txheem kev ua haujlwm hnyav, uas tsim nyog rau lub peev thiab kev ua haujlwm ntawm cov chaw tsim khoom me me lossis cov lag luam hauv nroog.
Phau ntawv ce yog hu ua phau ntawv suit. Nws nias lub fins ib los ntawm ib qho nrog kev pab ntawm cov cuab yeej thiab tib neeg lub zog. Nyob rau hauv txoj kev no, vim hais tias lub nias quab yuam ntawm lub fins yog txwv, kev cuam tshuam ntawm lub tes tsho me me, thiab cov fins yog ib qho yooj yim rau xoob.
Mechanical finning yog nqa tawm ntawm lub tshuab finning. Txij li thaum lub fin yog nias los ntawm txhua yam cuam tshuam quab yuam los yog kua siab, thiab lub zog nias yog loj, kev cuam tshuam loj tuaj yeem siv tau. Lub zog sib txuas ntawm cov fins thiab cov hlab yog siab, thiab nws tsis yooj yim rau loosen. Cov neeg kho tshuab tsav lub tshuab muaj kev tsim khoom siab, tab sis nws yog suab nrov, kev nyab xeeb tsis zoo thiab kev ua haujlwm tsis zoo rau cov neeg ua haujlwm. Txawm hais tias kev sib kis hydraulic tsis muaj teeb meem saum toj no, cov cuab yeej siv tus nqi kim, cov kev xav tau rau kev siv thiab tu cov neeg ua haujlwm siab, thiab cov khoom tsim tau tsawg.
Inlaid kauv fin
Lub embedded kauv finned raj yog ib tug kauv zawj nrog ib tug tej yam dav thiab qhov tob ua ntej ua nyob rau hauv lub steel yeeb nkab, thiab ces cov hlau sawb yog embedded rau ntawm cov yeeb nkab steel ntawm lub tshuab dhos. Thaum lub sij hawm winding txheej txheem, vim muaj ib tug tej yam ua ntej zawm quab yuam, cov hlau sawb yuav nruj nreem clamped nyob rau hauv lub kauv zawj, yog li xyuas kom meej ib tug tej thaj chaw deb ntawm cov hlau sawb thiab cov yeeb nkab steel. Txhawm rau tiv thaiv cov hlua hlau los ntawm kev rov qab los thiab poob tawm, ob qhov kawg ntawm cov hlua hlau yuav tsum tau welded rau ntawm cov yeeb nkab steel. Txhawm rau kom yooj yim inlaying, yuav tsum muaj qee qhov kev tshem tawm ntawm cov hlua hlau thiab cov kauv zawj. Yog hais tias sab clearance yog me me dhau los tsim kev cuam tshuam, cov txheej txheem inlaying yog qhov nyuaj rau kev ua haujlwm zoo. Tsis tas li ntawd, cov hlua hlau twisted yuav ib txwm rov qab mus rau ib qho twg, uas ua rau cov hlua hlau thiab hauv qab ntawm cov hlua khi tsis tuaj yeem txuas tau zoo. Lub fin inlay tuaj yeem nqa tawm ntawm cov cuab yeej siv dav siv nrog tus nqi qis, tab sis cov txheej txheem yog qhov nyuaj thiab cov khoom siv tau tsawg.
Brazed kauv finned tube
Kev ua ntawm brazed kauv finned hlab yog nqa tawm nyob rau hauv ob kauj ruam. Ua ntej, qhwv cov hlau sawb dav hlau perpendicular mus rau cov yeeb nkab axis ntawm sab nraud ntawm cov yeeb nkab nyob rau hauv ib txoj kev kauv, thiab weld ob kawg ntawm cov hlau sawb mus rau cov yeeb nkab steel rau fixation. Tom qab ntawd, txhawm rau txhawm rau txhawm rau tshem tawm qhov sib txawv ntawm cov hlau sawb thiab cov yeeb nkab steel, welded steel strip thiab steel yeeb nkab ua ke los ntawm kev sib tsoo.
Txoj kev no yog kim, yog li lwm txoj kev siv feem ntau, uas yog, cov yeeb nkab qhwv nrog steel sawb yog muab tso rau hauv zinc da dej rau tag nrho cov kub galvanizing. Txawm hais tias cov tshuaj electroplating tsis tuaj yeem nkag mus rau hauv qhov sib txawv me me ntawm cov fin thiab cov yeeb nkab steel, cov zinc txheej tiav yog tsim rau sab nrauv ntawm cov fin thiab cov yeeb nkab steel. Qhov tseem ceeb kub-dip galvanized kauv finned raj yog txwv los ntawm lub thickness ntawm galvanized txheej (thaum lub galvanized txheej yog tuab, zinc txheej tsis muaj zog thiab yooj yim rau poob), thiab cov zinc tov tsis tuaj yeem nkag mus rau hauv qhov sib txawv kiag li, yog li ntawd. qhov sib piv ntawm cov fin thiab cov yeeb nkab steel tseem tsis siab. Tsis tas li ntawd, lub tshav kub hloov pauv coefficient ntawm zinc yog me dua li ntawm cov hlau (txog 78 feem pua ntawm cov hlau), yog li lub peev xwm hloov hluav taws xob tsawg. Zinc yog ib qho yooj yim rau corroded hauv acid, alkali thiab sulfide. Yog li ntawd, galvanized kauv finned raj tsis haum rau ua cua preheater (kom rov qab cov khib nyiab ntawm boiler flue gas).
High zaus welding kauv fin
High zaus thiab siab zaus welding kauv finned raj yog ib qho ntawm feem ntau siv kauv finned hlab, uas yog tam sim no dav siv nyob rau hauv lub hwj chim, metallurgy, cement kev lag luam pov tseg thaum tshav kub kub rov qab thiab petrochemical kev lag luam. High zaus vuam ntawm kauv finned tube yog siv cov nyhuv ntawm daim tawv nqaij thiab qhov sib thooj ntawm cov zaus tam sim no los ua kom sov cov hlau sawb thiab sab nrauv ntawm cov hlau raj kom txog rau thaum lub xeev yas los yog melting, thaum lub steel sawb raug mob nyob ib ncig ntawm lub steel raj. . Lub vuam yog ua tiav nyob rau hauv ib tug tej yam siab thaum lub steel sawb raug mob. Qhov no hom ntawm high-frequency welding yog ib tug khoom theem welding. Piv nrog rau inlay, brazing (los yog tag nrho cov kub galvanizing) thiab lwm txoj kev, nws yog ntau tshaj nyob rau hauv cov nqe lus ntawm cov khoom zoo (siab vuam tus nqi ntawm fins, mus txog 95 feem pua), productivity thiab automation.
Peb yob cross dov ib leeg muab kauv finned raj
Lub hauv paus ntsiab lus ntawm peb yob cross rolling integral kauv finned tube yog raws li nram no: lub raj du yog lined nrog ib tug mandrel, tsav los ntawm kev sib hloov ntawm cov menyuam hniav, thiab seamless steel raj yog machined ntawm nws sab nrauv los ntawm lub qhov kab noj hniav tsim. ntawm lub dov zawj thiab lub taub hau tseem ceeb. Lub raj finned uas tsim los ntawm txoj kev no muaj kev hloov pauv hluav taws xob siab vim tias lub hauv paus raj thiab cov fins sab nrauv yog cov organic tag nrho, yog li tsis muaj teeb meem ntawm kev tiv thaiv thermal poob. Piv nrog rau txoj kev vuam, peb txoj kev sib tw yob txoj kev muaj qhov zoo ntawm kev ua haujlwm siab, tsis siv cov khoom siv raw, thiab cov cua kub hloov pauv ntawm cov raj finned.
Peb yob cross rolling integral kauv finned tube tshuab tau ntse siv rau ib leeg finned raj los yog composite finned raj nrog tooj liab los yog txhuas fins, los yog tsawg finned raj nrog steel fins; Cov hlau tseem ceeb finned tubes feem ntau yog qis finned raj hauv kev lag luam, thaum lub siab finned tubes feem ntau yog ua los ntawm txhuas, tooj liab, thiab lwm yam, uas feem ntau txias dov.
