Raws li cov khoom tseem ceeb hauv kev lag luam tswj cov kua dej, lub kaum sab xis valve yog siv dav hauv cov khoom noj, tshuaj, tshuaj, thiab cov kab ntau lawm. Lawv lub luag haujlwm tseem ceeb yog tswj xyuas qhov ntws ntawm cov xov xwm los ntawm kev qhib thiab kaw. Kev ua tau zoo ntawm lub kaum sab xis ntawm lub rooj zaum tsis yog nyob ntawm kev xaiv cov khoom siv thiab cov qauv tsim, tab sis kuj tseem nyob ntawm cov txheej txheem molding. Cov txheej txheem molding tsim nyog tsis tsuas yog ua kom qhov tseeb qhov tseeb thiab qhov zoo ntawm lub cev lub cev thiab lub valve tseem ceeb, tab sis kuj tseem txhim kho cov khoom lag luam siab, kev tiv thaiv corrosion, thiab kev cia siab ntev -. Kab lus no yuav muab cov ncauj lus kom ntxaws txog cov txheej txheem molding tseem ceeb rau lub kaum sab xis li qub, tshawb nrhiav cov ntsiab lus tseem ceeb los ntawm raw khoom pretreatment mus rau qhov kawg khoom tsim.
Qhov cuam tshuam tseem ceeb ntawm Raw Material Pretreatment thiab xaiv ntawm Moulding
Cov txheej txheem molding rau lub kaum sab xis li qub pib nrog kev xaiv thiab pretreatment ntawm raw cov ntaub ntawv. Mainstream valve lub cev cov ntaub ntawv feem ntau yog 304 los yog 316L stainless hlau (uas ua tau raws li cov zaub mov / kev kho mob qib kev tu cev), tooj dag (tsim nyog rau kev lag luam xov xwm), los yog engineering plastics (xws li PP thiab PVDF, siv nyob rau hauv corrosive ib puag ncig). Siv cov hlau tsis muaj hlau ua piv txwv, cov khoom siv raw yuav tsum tau ua ntej kev kho mob oxidation (xws li pickling thiab passivation) los tiv thaiv qhov pores los yog tawg los ntawm impurities thaum lub sij hawm molding txheej txheem. Yog tias siv cov cam khwb cia dawb, spectral tsom xam yuav tsum tau ua kom paub tseeb tias cov alloy muaj pes tsawg leeg ua tau raws li tus qauv tsim, thiab qhov khoob qhov ntev yuav tsum tau txheeb xyuas kom ntseeg tau tias cov nyiaj siv ua haujlwm tsim nyog. Rau lub kaum sab xis lub tog raj kheej ua los ntawm cov yas (xws li PVDF), cov khoom siv raw yuav tsum tau ua ntej- qhuav (cov ntsiab lus noo yuav tsum tsawg dua 0.02%) kom tsis txhob muaj npuas thiab qhov tsis xws luag los ntawm cov dej evaporation thaum lub sij hawm txhaj tshuaj molding txheej txheem.
Main Structure Moulding: Kev sib koom tes Casting, Forging, thiab Machining
Lub ntsiab qauv (valve lub cev thiab lub rooj zaum) ntawm lub kaum sab xis lub rooj valve tuaj yeem tsim los ntawm casting, forging, thiab ncaj machining, nyob ntawm seb qhov kev ua haujlwm yuav tsum tau ua. Casting thiab forging yog cov txheej txheem ntau tshaj plaws.
(I) Casting: Tsawg-Tus nqi siv cov qauv tsim
Rau lub kaum sab xis valve lub cev nrog cov txheej txheem nyuaj (xws li ntau txoj hauv kev ntws thiab tshwj xeeb- cov kab noj hniav), xuab zeb casting lossis precision casting (xws li poob siv quav ciab) yog cov kev xaiv uas nyiam. Xuab zeb casting yog tsim rau loj - teev ntau lawm. Cov xuab zeb pwm yog tsim los ntawm kev ua cov ntoo lossis hlau pwm. Molten hlau (xws li 316L stainless hlau) yog poured rau hauv pwm kab noj hniav thiab txias los tsim pwm. Tus yuam sij rau cov txheej txheem no yog nyob rau hauv kev tswj qhov kub thiab txias (feem ntau yog 1520-1580 degree) thiab kev ua kom nrawm kom tsis txhob muaj qhov tsis xws luag xws li shrinkage thiab pinholes los ntawm qhov tsis sib xws. Precision casting, los ntawm cov pwm siv quav ciab-ceramic plhaub- tua- txheej txheem casting, tuaj yeem ua tiav qhov tseeb ntawm ± 0.3mm, ua rau nws tsim nyog rau kev tsim cov khoom me me ntawm lub siab-precision valve lub cev (xws li sterile kho mob lub rooj zaum li qub).
(II) Forging: Txoj kev nyiam rau siab - zog yuav tsum tau
Thaum lub kaum sab xis ntawm lub rooj zaum muaj kev kub siab (xws li, Ntau dua lossis sib npaug ntawm 1.6 MPa) lossis nquag qhib thiab kaw, cov txheej txheem forging tuaj yeem txhim kho lub cev lub zog los ntawm kev faib cov hlau fiber ntau. Qhib tuag forging lossis tuag forging feem ntau yog siv. Stainless hlau bar Tshuag yog rhuab mus rau 1100-1200℃thiab ces tsim rau hauv ib tug ntxhib valve lub cev dawb paug siv ib tug xovxwm. Lub hauv paus ntawm cov txheej txheem forging yog nyob rau hauv pwm tsim thiab tswj cov forging piv (feem ntau ntau dua los yog sib npaug rau 3) los xyuas kom meej ib tug ntom nrog cov qauv. Normalizing thiab tempering kev kho mob yog tom qab ntawd yuav tsum tau tshem tawm cov kev ntxhov siab sab hauv, thiab CNC machining yog siv los ua kom tiav cov txheej txheem zoo xws li cov dej ntws thiab qhov txuas.
(III) Direct Machining: Efficiency Guaranteed rau cov qauv yooj yim
Rau qhov yooj yim yas lub rooj zaum li qub (xws li cov yas me me pneumatic lub rooj zaum li qub), txhaj tshuaj molding lossis CNC machining ncaj qha tuaj yeem siv. Txhaj molding heats ua ntej- kho cov yas pellets rau lub xeev molten (piv txwv li, PVDF yuav tsum tau cua sov rau 250-}280 degree), txhaj rau hauv pwm kab noj hniav, thiab txias thiab solidifies. Cov txheej txheem no ua tau zoo heev (ib zaug -daim voj voog tsuas siv kaum vib nas this), tab sis yuav tsum tau tswj pwm nruj (feem ntau 80-120 degree) kom tsis txhob muaj kev sib tsoo. CNC machining ncaj qha siv bar Tshuag (xws li tooj dag lossis stainless hlau) thiab tsim cov khoom los ntawm cov txheej txheem xws li tig thiab milling. Nws yog tsim rau me me-batch customized cov khoom thiab tuaj yeem ua tiav machining raug tshaj IT7 qib.
Sealing thiab Functional Component Moulding: Ib kauj ruam tseem ceeb hauv Precision Manufacturing
Lub sealing kev ua tau zoo ntawm lub kaum sab xis li qub cuam tshuam ncaj qha rau lawv txoj kev ntseeg tau, yog li cov txheej txheem molding rau cov khoom xws li lub rooj zaum thiab lub nplhaib sib khi yuav tsum ua kom tau raws li qhov xav tau siab thiab sib xws.
(I) Valve Rooj Moulding: Sib txawv ua rau tawv thiab mos cov ntsaws ruaj ruaj
Hard-cov rooj zaum kaw (xws li cov rooj zaum stainless hlau) feem ntau yog siv tshuab, siv lub tshuab sib tsoo los tswj lub sealing nto roughness tsawg dua Ra 0.8μm, tsim kom muaj cov kab sib txuas nrog lub valve core. Mos- kaw lub rooj zaum (xws li PTFE thiab roj hmab) feem ntau yog molded-PTFE hmoov yog sintered ntawm 380-400℃los teeb tsa cov duab- lossis los ntawm kev txhaj tshuaj molding roj hmab (xws li EPDM) rau hauv pwm. Tom qab molding, annealing yuav tsum tau tshem tawm cov kev ntxhov siab sab hauv, thiab kev sim airtightness (xws li helium mass spectrometry) yog ua los xyuas qhov kev sib khi.
(II) Sealing Nplhaib Moulding: Cov khoom sib txuam nrog cov pwm
Rubber sealing rings (xws li O-rings) feem ntau yog tsim los ntawm kev txhaj tshuaj molding lossis extrusion. Kev txhaj tshuaj molding yog tsim rau me me - qhov loj sealing rings nrog txoj kev hla- ntu (xws li lub hnub qub- zoo li lub nplhaib). Cov pwm yuav tsum tau tsim kom muaj kev khiav dej num kom paub meej cov khoom sib xws. Extrusion molding yog siv rau cov ntsaws ruaj ruaj ntev (xws li valve qia seals). Tom qab cov pwm tiav lawm, nws tau txais kev kho vulcanization los txhim kho elasticity thiab aging kuj. Rau cov ntaub ntawv tshwj xeeb xws li fluororubber, molding kub yuav tsum tau tswj (feem ntau qis dua 200 degree) los tiv thaiv cov khoom decomposition.
Kev kho deg thiab kev sib dhos zaum kawg: Kev ncaj ncees ntawm cov txheej txheem molding
Tom qab molding, lub kaum sab xis li qub yuav tsum tau kho saum npoo los txhim kho corrosion kuj thiab zoo nkauj. Stainless hlau valve lub cev yog feem ntau polished (mechanically polished mus rau ib daim iav los yog matte tiav) los yog electropolished (tshem microscopic nto protrusions, txo cov Ra mus rau hauv qab 0.1μm). Lub cev lub cev yas yog txau nrog khawb - tiv thaiv txheej los txhim kho hnav tsis kam. Thaum kawg, lub cev lub cev, lub valve tseem ceeb, cov ntsaws ruaj ruaj, thiab lwm yam khoom siv tau sib sau ua ke ntawm cov kab sib dhos tsis siv neeg. Kev tshuaj xyuas zaum kawg suav nrog kev ntsuas siab (piv txwv li, tswj lub siab ntawm 1.5 npaug ntawm lub siab nominal rau 30 feeb yam tsis muaj qhov xau) thiab kev sim lub neej (xws li, 100,000 qhib thiab kaw lub voj voog) kom ntseeg tau tias qhov kawg ntawm cov txheej txheem molding ua tau raws li cov qauv tsim.
Cov txheej txheem molding rau lub kaum sab xis li qub yog kev sib xyaw ua ke ntawm cov ntaub ntawv science, machining, thiab precision manufacturing technologies. Los ntawm raw khoom pretreatment mus rau lub ntsiab qauv molding thiab precision manufacturing ntawm sealing Cheebtsam, txhua kauj ruam yuav tsum tau nruj me ntsis tswj cov txheej txheem tsis thiab zoo tswj nodes. Nrog rau kev nce qib ntawm kev lag luam automation, kev txhim kho yav tom ntej ntawm lub kaum sab xis valve molding yuav txuas ntxiv mus rau kev txawj ntse (xws li, AI-raws li pwm optimization) thiab ntsuab (xws li, qis-lub zog casting tshuab) thev naus laus zis kom ua tau raws li cov kev xav tau ntawm kev xav tau ntau dua kev tswj cov dej.