Qhov muag tsis pom flange, tseem hu ua qhov muag tsis pom phaj, yog lub flange tsis muaj qhov hauv nruab nrab los kaw cov yeeb nkab ntsaws. Muaj ntau hom sealing nto, xws li tiaj tus, convex, concave thiab convex nto, tus nplaig thiab zawj nto, thiab nplhaib sib txuas nto. Qhov muag tsis pom flange ntau lawm txheej txheemCov txheej txheem ntau lawm yog muab faib ua forging, casting, txiav, peb hom.
Qhov muag tsis pom flange, tseem hu ua qhov muag tsis pom phaj, yog lub flange tsis muaj qhov hauv nruab nrab los kaw cov yeeb nkab ntsaws. Muaj ntau hom sealing nto, xws li tiaj tus, convex, concave thiab convex nto, tus nplaig thiab zawj nto, thiab nplhaib sib txuas nto.
Qhov muag tsis pom flange ntau lawm txheej txheemCov txheej txheem ntau lawm yog muab faib ua forging, casting, txiav, peb hom.
Casting flange, cov duab puab thiab qhov loj me yog qhov tseeb, kev ntim khoom me me, tus nqi qis, tab sis muaj qhov tsis xws luag (pores. Crack. inclusions); Cov txheej txheem sab hauv ntawm lub casting yog tsis zoo aerodynamic (yog hais tias nws yog ib feem, lub aerodynamics tsis zoo);
Forged flanges feem ntau muaj cov ntsiab lus qis dua li cov flanges cam khwb cia thiab tsis yooj yim rau xeb, forgings muaj qhov zoo streamlining, tus qauv ntom ntom, thiab cov khoom siv kho tshuab zoo dua li cam khwb cia flanges;
Cov txheej txheem forging tsis raug kuj tseem yuav ua rau cov nplej loj lossis tsis sib xws, cov kab nrib pleb nyuaj, thiab cov nqi forging yog siab dua cam khwb cia flanges.
Forgings tuaj yeem tiv taus siab dua shear thiab tensile zog dua li castings.
Qhov kom zoo dua ntawm castings yog tias lawv tuaj yeem ua rau cov duab ntau dua thiab cov nqi qis dua;
Qhov zoo ntawm forgings yog tias cov qauv sab hauv yog sib xws thiab tsis muaj qhov tsis xws luag xws li pores thiab suav nrog hauv cov castings;
Los ntawm cov txheej txheem ntau lawm, qhov sib txawv ntawm cov flange casting thiab forging flange, xws li centrifugal flange, belongs rau ib hom casting flange.
Centrifugal flange belongs rau casting txoj kev ntau lawm flange, hom casting no zoo tib yam xuab zeb casting qauv yog ntau finer, zoo heev txhim kho, tsis yooj yim rau pom weaving looseness, porosity, trachoma thiab lwm yam teeb meem.
Ua ntej ntawm tag nrho cov, peb yuav tsum to taub yuav ua li cas centrifugal flanges yog tsim, centrifugal casting los ua ca weld flange txheej txheem txheej txheem thiab cov khoom, uas yog yus muaj los ntawm cov nram qab no txheej txheem txheej txheem:
(1) Cov khoom siv raw khoom xaiv tau muab tso rau hauv qhov nruab nrab zaus hluav taws xob rauv kom yaj, kom qhov kub ntawm cov hlau molten ncav cuag 1600-1700 degree ;
(2) Preheat cov pwm hlau mus rau 800-900 degree kom tswj tau qhov kub thiab txias;
(3) Pib lub centrifuge thiab txhaj cov hlau molten hauv kauj ruam (1) rau hauv cov pwm hlau preheated hauv kauj ruam (2);
(4) Lub casting txias ib txwm mus rau 800-900 degree tshaj 1-10 feeb;
(5) Txias nrog dej kub li qub thiab tshem tawm cov casting los ntawm pwm.
nominal loj |
0.6MPa | 1. 0MPa | 1.6MPa | 2.5MPa | 4. 0MPa |
| DN | |||||
| 15 | 8 | 8 | 8 | 8 | 8 |
| 20 | 8 | 8 | 8 | 8 | 8 |
| 25 | 8 | 8 | 8 | 8 | 9/8 |
| 32 | 8 | 8 | 8 | 8 | 8/10 |
| 40 | 8 | 8 | 8 | 9/8 | 8/10 |
| 50 | 8 | 8 | 9/8 | 8/10 | 12/10 |
| 65 | 8 | 8 | 8/10 | 9/11 | 11/13 |
| 80 | 8 | 8 | 8/10 | 12/10 | 12/14 |
| 100 | 8/10 | 8 | 12/10 | 12/14 | 16/14 |
| 125 | 9/11 | 9/8 | 11/13 | 16/14 | 19/17 ib |
| 150 | 12/10 | 8/10 | 15/13 | 17/15 | 21/19 |
| 200 | 12/14 | 12/10 | 17/15 | 21/19 | 27/25 ib |
| 250 | 17/15 | 11/13 | 20/18 | 25/23 | 32/30 ib |
| 300 | 19/17 ib | 15/13 | 23/21 ib | 29/27 ib | 37/35 ib |
| 350 | 21/19 | 17/15 | 26/24 ib | 33/31 ib | 42/40 ib |
| 400 | 23/21 ib | 18/16 | 29/27 ib | 36/34 ib | 48/46 ib |
| 450 | 25/23 | 20/18 | 32/30 ib | 39/37 ib | 50/48 ib |
| 20 W | 28/26 | 22/20 | 35/33 ib | 43/41 ib | 54/52 ib |
| 600 | 32/30 ib | 25/23 | 41/39 ib | 51/49 ib | 65/62 ib |
