Valve sealing nto sib tsoo thiab sib dhos Valve kov thiab handwheel xim specifications

Valve sealing nto sib tsoo thiab sib dhos Valve kov thiab handwheel xim specifications

Yog ib txoj kev ua tiav, tuaj yeem ua rau cov khoom kom tau txais qhov tseeb qhov tseeb, geometric precision thiab nto tiav, tab sis tsis tuaj yeem txhim kho qhov kev sib nrig sib ntawm qhov raug. Cov khoom siv sib tsoo yuav tsum ua tau raws li ob qho hauv qab no: ① yooj yim rau embed abrasive hais ② tuaj yeem tuav cov geometric precision ntawm cov cuab yeej sib tsoo rau lub sijhawm ntev. Yog li ntawd, feem ntau siv cov ntaub ntawv mos dua li cov workpiece los ua cov cuab yeej tshawb fawb, feem ntau siv grey cam khwb cia hlau. Hauv cov txheej txheem ntawm kev sib dhos valve, lub cev valve feem ntau yog siv los ua cov khoom siv, raws li qhov kev txiav txim tau teev tseg hauv cov txheej txheem sib dhos, thiab cov txheej txheem yog nqa tawm. Ua ntej sib dhos, nws yuav tsum tau xyuas seb cov khoom puas tau raug tshem tawm thiab ntxuav.
Valve sealing nto sib tsoo
Ua ntej, sib tsoo cov hauv paus ntsiab lus thiab cov cuab yeej
(I) Basic Principles:
Yog ib txoj kev ua tiav, tuaj yeem ua rau cov khoom kom tau txais qhov tseeb qhov tseeb, geometric precision thiab nto tiav, tab sis tsis tuaj yeem txhim kho qhov kev sib nrig sib ntawm qhov raug.
Sib tsoo, lub cuab yeej thiab lub workpiece nto haum ua ke, qhov nruab nrab filling abrasives, thaum lub cuab yeej raws li qhov sib koom ua ke, kev tawm dag zog ntawm ob feem ntawm abrasive grits nto zawv zawg lossis dov, ib feem ntawm abrasive yog embedded lossis sessile hauv cov cuab yeej nto, thiab txiav tawm los ntawm workpiece nto yog nyias txheej ntawm cov hlau, lub ncov ntawm lub workpiece yog thawj zaug sib tsoo, maj mam ua tiav qhov zoo tagnrho saum npoo yuav tsum tau.
Txhawm rau ua kom lub ntsej muag sib tsoo tsis sib haum, cov kev sib txheeb ntawm txhua qhov chaw ntawm lub workpiece mus rau qhov sib tsoo cov cuab yeej yuav tsum zoo ib yam li qhov ua tau, yog li cov kev taw qhia ntawm cov txheeb ze yuav tsum tau hloov tas li.
Qhov kev sib tsoo nrawm dua, qhov ua tau zoo dua, tab sis yog tias nws siab dhau lawm, nws yuav ua rau lub tshuab ua haujlwm kub thiab cuam tshuam rau qhov tseeb geometric. Nyob rau tib lub sijhawm, peb yuav tsum ua tib zoo saib tsis txhob siv lub zog ntau dhau ntawm qhov chaw, txwv tsis pub nws yuav ua rau kub.
Vim tias kev sib tsoo yog kev ua haujlwm du, qhov txiav nyiaj tsawg heev, yog li tuaj yeem ua kom tshem tawm cov txheej txheem ua tiav ntawm cov txheej txheem kawg, qhov chaw ntawm kev kho cov workpiece geometry yuam kev, qhov me me ntawm cov nyiaj sib tsoo, qhov zoo dua.
(2) Cov cuab yeej sib tsoo
Cov khoom siv sib tsoo yuav tsum ua tau raws li ob qho hauv qab no: ① yooj yim rau embed abrasive hais ② tuaj yeem tuav cov geometric precision ntawm cov cuab yeej sib tsoo rau lub sijhawm ntev. Yog li ntawd, feem ntau siv cov ntaub ntawv mos dua li cov workpiece los ua cov cuab yeej tshawb fawb, feem ntau siv grey cam khwb cia hlau.
Abrasive yog qhov sib xyaw ntawm cov khoom siv thiab cov kua dej abrasive. Cov khoom siv feem ntau yog corundum (alumina), silicon carbide, boron carbide, chromium oxide, hlau oxide thiab pob zeb diamond hmoov, coarse coarse abrasive thaum siv.
Cov dej sib tsoo yog siv los kho cov abrasive, thiab plays lub luag haujlwm ntawm lubrication, txias thiab oxidation.
Ob, valve sealing nto sib tsoo
(a) phau ntawv sib tsoo
Kev sib tsoo phau ntawv yog qhov yooj yim, tab sis tsis tshua muaj txiaj ntsig, tsis zoo, haum rau cov lag luam me thiab kho.
1. Kev tuav kev sib tsoo ntawm lub sealing nto ntawm lub valve lub cev
Kev siv lub qhov square ntawm lub vaj disc zoo li cov cuab yeej sib tsoo yog muab tso rau ntawm qhov chaw sib khi ntawm lub valve lub cev kab noj hniav, thiab tom qab ntawd qhov ntev kov nrog lub taub hau square yog siv los tsav lub phaj sib tsoo rau kev sib tsoo txav. Muaj ib lub vaj kem tus thawj coj los yog ua rau lub tshav kub conduction phaj ntawm lub phaj sib tsoo kom tiv thaiv cov cuab yeej sib tsoo los ntawm kev qhib lub sealing nto.
Ua ntej sib tsoo, cov cuab yeej sib tsoo yuav tsum tau ntxuav, coated nrog ib txheej ntawm abrasive, thiab cov cuab yeej sib tsoo yuav tsum tau muab tso rau ntawm qhov chaw sib khi, ua ntej tig clockwise 180 ° thiab tom qab ntawd tig rov qab 90 °, yog li rov ua dua, ua tib zoo saib kom zoo thiab tsim nyog quab yuam. thaum sib tsoo, thiab tas li ntxiv abrasive.
2, valve phaj, valve disc thiab lwm yam sealing nto sib tsoo
Siv nyob rau hauv lub phaj sib tsoo rau kev sib tsoo, ua ntej ntawm lub phaj sib npaug coated nrog ib txheej ntawm kev sib tsoo tus neeg sawv cev, lub workpiece yog txuas rau lub phaj, rau ib sab ua kev sib hloov thiab ua linear zog los yog daim duab 8 txav.
PAINT xim ntawm lub valve kov thiab tes log sib txawv raws li cov khoom siv sealing.
Xim lub VALVE HANDLE THIAB HANDWHEEL. Saib cov lus hauv qab no rau cov xim xim ntawm sealing nto khoom
Sealing khoom nto
Xim xim ntawm HANDLE thiab handwheel Sealing nto MATERIAL kov thiab handwheel xim xim xim Bronze los yog tooj dag liab nyuaj alloy Cerurenous Babbitt daj yas ntshav aluminium aluminium dawb cam khwb cia hlau dub acid-resistant steel, stainless hlau lub teeb xiav roj hmab nruab nrab ntsuab nitriding steel lub teeb liab Monel alloy tsaus daj