Qhov zoo ntawm kev kho cryogenic ntawm li qub thiab cov xwm txheej ntawm cov ntawv thov kev lag luam

Qhov zoo ntawm kev kho cryogenic ntawm li qub thiab cov xwm txheej ntawm cov ntawv thov kev lag luam

Tsis tshua muaj kub cryogenic ua tshuab tuaj yeem txhim kho lub neej kev pab cuam ntawm cov ntaub ntawv yog: high-speed steel, cuab yeej steel, tuag steel, tooj liab electrode, hmoov cov ntaub ntawv, hard alloy, ceramic, thiab lwm yam. Piv txwv ntawm kev siv cov cryogenic kev kho mob mus ntev. kev pab cuam lub neej ntawm cov khoom los ntawm qee lub tuam txhab Asmeskas thiab qee lub tuam txhab Suav tau qhia hauv Table 2 thiab Table 3, feem. Table 4 qhia txog qhov sib npaug ntawm qhov hnav tsis kam hloov ntawm qee cov khoom siv feem ntau siv tuag tom qab kho cryogenic. tuaj yeem txhim kho hnav tsis kam; Txhim khu lub zog thiab toughness; Txhim kho corrosion kuj, hnav tsis kam; Txhim khu kev cuam tshuam; Ua kom qaug zog ntxiv…
Kev sib txuas sab saud: Valve cryogenic kho txoj cai thiab nws daim ntawv thov hauv kev lag luam (2)
Qhov zoo thiab muaj daim ntawv thov kev kho cryogenic
3.1 Cov txiaj ntsig tseem ceeb ntawm kev kho cryogenic
tuaj yeem txhim kho hnav tsis kam; Txhim khu lub zog thiab toughness; Txhim kho corrosion kuj, hnav tsis kam; Txhim khu kev cuam tshuam; Txhim kho qaug zog; Tom qab kev kho cryogenic, nws tuaj yeem ua kom ntseeg tau tias cov khoom siv kho mob ib txwm muaj cov khoom siv kho kom zoo dua qub; Tsis ua rau cov duab loj deformation; tuaj yeem siv rau cov khoom siv tshiab / siv; tuaj yeem tshem tawm kev ntxhov siab sab hauv; Txhim kho cov khoom ruaj khov; Tus nqi ua haujlwm tsawg, vim tias kev ua kom lub neej ntev ntawm lub cuab yeej tuaj yeem txo lub sijhawm ntawm cov cuab yeej hloov thiab sib tsoo, kom txuag tau cov nqi tsim khoom; Ua tiav cov txiaj ntsig zoo ib yam li lwm yam kev kho saum npoo (xws li Chin plating, chrome, Teflon); Tighter molecular structures tuaj yeem tsim tau, txo kev sib txhuam, kub thiab hnav ntawm qhov chaw loj dua.
3.2 Lub luag haujlwm tseem ceeb uas tuaj yeem ua tiav los ntawm kev kho cryogenic
Cov cuab yeej txiav; Internal combustion engine qhov chaw; * * * raj; Coj mus rhaub; Transmission ncej; Cov cuab yeej kho mob; me ntsis; Lub crankshaft. Agricultural machinery accessories; milling cutter; CAM; Suab paj nruag; Indexable hniav; Axis; Stainless hlau; Tuag; iav; Nickel puag alloy; Progressive tuag. Cov saw hlau; Cov khoom siv tooj liab electrode; txiab; Shock pas nrig; Cov khoom siv ceramic; Cov hniav; Extrusion pas nrig; Aluminium puag alloy; Tau txiab; Nylon, Teflon; Hmoov metallurgy qhov chaw; Tag nrho cov xav tau nyob rau hauv siab hardness tib lub sij hawm kom muaj ib tug kuj high degree ntawm toughness, hlau Cheebtsam.
3.3 Cov ntawv thov kev lag luam tseem ceeb ntawm kev kho cryogenic
3.3.1 Txuas lub neej kev pab cuam ntawm cov khoom thiab cov cuab yeej thiab txhim kho qhov hnav tsis kam
Tsis tshua muaj kub cryogenic ua tshuab tuaj yeem txhim kho lub neej kev pab cuam ntawm cov ntaub ntawv yog: high-speed steel, cuab yeej steel, tuag steel, tooj liab electrode, hmoov cov ntaub ntawv, hard alloy, ceramic, thiab lwm yam. Piv txwv ntawm kev siv cov cryogenic kev kho mob mus ntev. kev pab cuam lub neej ntawm cov khoom los ntawm qee lub tuam txhab Asmeskas thiab qee lub tuam txhab Suav tau qhia hauv Table 2 thiab Table 3, feem. Table 4 qhia txog qhov sib npaug ntawm qhov hnav tsis kam hloov ntawm qee cov khoom siv feem ntau siv tuag tom qab kho cryogenic. Raws li tuaj yeem pom los ntawm peb cov lus hauv qab no, kev kho cryogenic ua rau muaj qhov sib txawv ntawm cov khoom thiab cov cuab yeej ntawm cov khoom sib txawv, thiab kev hnav tsis kam ntawm cov khoom thiab cov cuab yeej tau zoo dua.
Table 2 Piv txwv ntawm qee lub tuam txhab hauv Tebchaws Meskas siv cov kev kho mob cryogenic los txuas ntxiv lub neej kev pabcuam ntawm cov khoom
Table 3 Piv txwv ntawm kev pab cuam lub neej ntawm domestic cryogenic kho high workpieces
Table 4 Lub neej hloov pwm tom qab kev kho mob cryogenic
Table 5 Teb ntau lawm thiab kuaj cov txiaj ntsig ntawm kev kho cryogenic
3.3.2 Txhim kho qhov ruaj khov ntawm cov ntaub ntawv
Txhim kho qhov ruaj khov ntawm cov ntaub ntawv yog lwm qhov kev ua tiav ntawm kev kho cryogenic hauv txhuas, tooj liab, Chin thiab 300 series stainless hlau, tshwj xeeb tshaj yog txhuas thiab nws cov alloys.
3.3.3 Txhim kho cov khoom siv
Cryogenic kev kho mob tuaj yeem txhim kho thiab txhim kho cov khoom siv, xws li lub zog, qaug zog, tiv thaiv corrosion, thiab lwm yam. Table 5 qhia cov txiaj ntsig tau los ntawm kev siv cov kev tshawb fawb hauv tsev kawm ntawv thiab kev tshawb fawb hauv kev lag luam.
Nrog rau txoj kev loj hlob ntawm kev lag luam niaj hnub, cov kev xav tau ntawm cov khoom siv yog siab dua thiab siab dua. Muaj ob lub ntsiab lus tseem ceeb hauv kev tshawb fawb cov ntaub ntawv niaj hnub:
① Tsis tu ncua tsim cov thev naus laus zis tshiab, cov txheej txheem tshiab thiab cov cuab yeej tshiab los tsim ntau yam khoom tshiab nrog cov kev xav tau tshwj xeeb lossis cov khoom zoo, xws li kev ruaj khov sai, mechanical alloying, dav hlau deposition, txhaj tshuaj molding thiab lwm yam txheej txheem los tsim microcrystalline, amorphous, quasicrystal, nanocrystalline cov khoom siv thiab cov khoom siv.
② Rau cov ntaub ntawv uas twb muaj lawm xws li hlau thiab hlau, txhuas, tooj liab siv ultra-ntshiab purification, loj deformation ua, cryotreatment thiab lwm yam tshwj xeeb ua thiab ua technology, nyob rau hauv lub hauv paus tsis hloov cov muaj pes tsawg leeg ntawm cov ntaub ntawv uas twb muaj lawm nyob rau hauv lub hauv paus ntawm txhim kho nws cov kev ua tau zoo, yog li txhawm rau txhim kho kev siv thiab rov qab cov peev txheej. Nyob rau tib lub sijhawm, cov khoom siv tuaj yeem txhim kho, thiab tus nqi tuaj yeem raug txo kom txo tau qhov kev puas tsuaj rau ib puag ncig, uas tsis muaj kev ntseeg tau muab txoj hauv kev zoo los daws cov teeb meem loj zuj zus thiab ib puag ncig. Yog li cov kev tshawb fawb ntawm cov ntaub ntawv cryogenic kho yuav dhau los ua ib qho kev tshawb fawb tseem ceeb ntawm cov ntaub ntawv tshawb fawb cov neeg ua haujlwm hauv tsev thiab txawv teb chaws, tab sis kev ruaj ntseg ntawm cov kev tshawb fawb uas twb muaj lawm ob qho tib si hauv cov txheej txheem kho cryogenic thiab cov txheej txheem ntawm kev ua ntawm qee cov ntaub ntawv tshawb fawb tseem muaj ntau yam tsis txaus, rau loj-scale thiab daim ntawv thov ntawm cryogenic kho nyob rau hauv industrial coj obstacles, Yog li ntawd, kev txhim kho thiab kev tshawb fawb ntawm ruaj khov cryogenic txheej txheem system thiab cryogenic kho mechanism ntawm non-ferrous hlau yuav yog lub hom phiaj ntawm kev tshawb fawb nyob rau hauv daim teb no.
Nrog rau txoj kev loj hlob ntawm kev tshawb fawb thiab thev naus laus zis thiab kev lag luam, qhov tshwj xeeb valve yog ntau thiab ntau, thiab cov khoom tshiab thiab tshwj xeeb valve tau tshwm sim, uas nyob deb dhau ntawm qhov ntau ntawm lub valve npog los ntawm cov qauv valve uas twb muaj lawm tso ua ke JB / T 308 hauv peb lub teb chaws. . Txoj kev sib koom ua ke ntawm valve qauv muab tso ua ke ua lub luag haujlwm tseem ceeb hauv kev ua kom muaj kev sib koom tes ntawm kev lag luam valve, ntxiv kev txhim kho cov khoom lag luam, thiab tas li refining kev sib faib ntawm kev ua haujlwm.
Ua ntej, lub luag haujlwm ntawm lub valve qauv
Nrog rau txoj kev loj hlob ntawm kev tshawb fawb thiab thev naus laus zis thiab kev lag luam, qhov tshwj xeeb valve yog ntau thiab ntau, thiab ntau yam tshiab thiab tshwj xeeb li qub tau tshwm sim, uas nyob deb dhau ntawm qhov ntau ntawm lub valve npog los ntawm cov qauv valve uas twb muaj lawm tso ua ke JB / T 308 hauv peb lub teb chaws. Txoj kev sib koom ua ke ntawm valve qauv muab tso ua ke ua lub luag haujlwm tseem ceeb hauv kev ua kom muaj kev sib koom tes ntawm kev lag luam valve, ntxiv kev txhim kho cov khoom lag luam, thiab tas li refining kev sib faib ntawm kev ua haujlwm.
Nyob rau tib lub sijhawm, vim kev lag luam valve nce kev sib tw hnyav, txhua lub tuam txhab valve loj hauv tsev thiab txawv teb chaws kom khaws cia hauv roj av, tshuaj lom neeg, hluav taws xob thiab lwm yam txheej txheem kev sib tw loj tuaj yeem ua tus yam ntxwv ntawm lawv cov khoom, los tiv thaiv. lawv tus kheej nyiam kev lag luam, feem ntau tsis siv koom ua ke JB / T 308 valve qauv tsim qauv, los ntawm sui generis valve qauv tsim qauv.
Ob, JB / T 308-2004 valve qauv npaj txoj kev
JB/T 308-2004 Valve Model Preparation Method muaj feem xyuam rau cov qauv kev npaj ntawm lub rooj vag li qub, lub ntiaj teb li qub, throttle li qub, npauj npaim li qub, pob li qub, diaphragm li qub, ntsaws li qub, kos li qub, kev nyab xeeb li qub, siab txo li qub, chav ntxiab , blowdown li qub, plunger li qub thiab lwm yam khoom hauv cov li qub.
Lub valve qauv tau teev tseg los ntawm JB / T 308-2004 yog tsim los ntawm cov hauv qab no: hom valve, tsav hom, kev sib txuas daim ntawv, qauv qauv, sealing nto khoom los yog hauv ob sab phlu khoom hom, siab code los yog ua hauj lwm siab code ntawm kev ua hauj lwm kub, valve lub cev khoom thiab lwm yam xya ntu.
Valve hom Code:
Lub valve hom code muaj ib tug tshwj xeeb code thiab ib tug yooj yim code.
Basic Code Name:
VALVE HOM CODE yuav tsum tau tshaj tawm hauv Suav PINYIN Cov Ntawv Raws li 1 Table 2.1 hauv qab no.