Roj Txhaj Pump Plunger 00U162 / U162 - Advanced Surface Engineering Thiab Abrasion-Resistant Design Rau Extended Inline Pump Service Life

Nyob rau hauv qhov xav tau ib puag ncig ntawm lub twj tso kua roj diesel, lub plunger nto tsis yog tsuas yog muaj kev kub ntxhov, tab sis kuj rau cov khoom abrasive uas inevitably dhau los ntawm cov roj pom. Lub 00U162/U162 Roj Txhaum Pump Plunger, tsim los ntawm Weifu, hais txog qhov kev sib tw no los ntawm kev sib xyaw ua ke ntawm kev tsim kho saum npoo av- kev kho duplex suav nrog txheej txheej nitrocarburised (20-25 µm) overlaid nrog cov khoom tiv thaiv scuffing phosphateµm (3-5). Qhov txheej txheem dual-txheej no muab qhov tshwj xeeb tiv thaiv rau peb lub cev puas tsuaj (cov khoom nyob nruab nrab ntawm lub plunger thiab chim), uas yog lub hauv paus kev hnav khaub ncaws hauv cov twj tso kua mis ua haujlwm nrog cov roj huv tsis zoo. Tsis zoo li cov plungers uas tsuas yog cia siab rau qhov nyuaj los tiv thaiv hnav, 00U162 / U162's phosphate top-txheej ua raws li cov txheej txheem kev txi uas absorbs me ntsis abrasion, tiv thaiv lub hauv paus hardened nto. Hauv kev sim nrawm nrawm nrog roj uas muaj 10 µm silica hais, 00U162 / U162 tau pom qhov hnav ntawm tsuas yog 0.6 µm ib 1,000 teev, piv rau 1.8 µm rau cov pa nitrided plungers -ib qho kev txhim kho uas txhais tau hais tias feem ntau ntawm cov kev pab cuam lub neej yog 3% kev siv roj. sib txawv.

Lub plunger 00U162 / U162 muaj lub npe ntawm txoj kab uas hla ntawm 8.0 hli nrog stroke ntawm 7.8 hli, xa lub ntim ntim ntawm 392 mm³. Lub helix tswj yog hauv av mus rau lub kaum ntse ntse ntawm 19℃± 0.15 degree, nrog rau kev txiav tawm ntawm ntug kab hluav taws xob tswj xyuas qhov tsawg dua lossis sib npaug ntawm 0.018 hli kom ntseeg tau tias muaj kev sib tw ntse, sib xws. Lub plunger nto tiav yog Ra 0.04 µm nrog lub hauv paus roughness qhov tob (Rk) ntawm 0.12 µm, optimized rau duplex txheej txheej. Lub chim bore yog lapped rau Ra 0.03 µm, thiab qhov matched clearance yog tuav mus rau 2.8–3.2 µm ntawm 20℃- ib tug nruj kam rau ua uas ua rau sab hauv leakage ntawm tsawg tshaj li los yog sib npaug rau 0.85 cm³ / min ntawm 100 bar xeem siab. Static flow ntawm tag nrho cov khib nyiab thiab 1,200 rpm yog calibrated rau 380-400 mm³ ib stroke, nrog ib tug unit-rau-unit variation ntawm tsawg dua los yog sib npaug rau ± 1.6%. Cov khoom siv plunger yog high-chromium steel (sib npaug rau 1.2358) nrog rau cov tub ntxhais hardness ntawm 58-62 HRC, muab cov qauv tsim nyog rau lub zog siab txog li 1,200 bar. Lub rooj sib txoos yog muab nrog cov txiv ntoo sib tw (torque 45-50 Nm) thiab lub shim teem rau lub caij nplooj ntoos hlav ua ntej-load hloov, thiab tag nrho qhov siab ntawm lub rooj sib txoos yog 41 hli, haum tus qauv Weifu twj tso kua mis.

Lub 00U162 / U162 yog tsim los rau inline twj (A-type thiab P-hom configurations) pab 4- rau 6-lub tog raj kheej cav nrog kev hloov ntawm 3.0 mus rau 6.0 litres. Nws yog ib qho kev hloov ncaj qha rau thawj Weifu twj tso kua mis thiab tseem sib xws nrog qee yam Bosch thiab Stanadyne inline twj uas sib koom tib lub plunger txoj kab uas hla thiab helix orientation. Lub plunger no nquag teev rau cov ntawv thov uas cov roj zoo tsis tuaj yeem kwv yees tau tsawg dua - xws li cov tsheb laij teb ua liaj ua teb ua haujlwm hauv thaj chaw deb, kev tsim kho tshuab hauv thaj chaw muaj plua plav, thiab cov khoom siv hauv kev tsim cov lag luam. Nws kuj yog ib qho kev xaiv nrov rau retrofitting cov qub cav los txhim kho roj efficiency thiab txo cov pa luam yeeb. Weifu muab cov plunger no rau OEMs suav nrog Yuchai, Weichai, thiab FAW, thiab nws muaj dav los ntawm kev lag luam tom qab hauv cov teb chaws Asia, Latin America, thiab Africa.

Lub 00U162 / U162's duplex txheej txheej ua haujlwm los ntawm ob qho kev sib txuas ua ke: cov txheej txheem nitrocarburised puag (1,000 HV) muab cov tawv tawv uas tiv thaiv cov yas deformation, thaum cov phosphate top-layer (500-600 HV) txhob txwm softer thiab ntau ntxeem tau. Thaum cov khoom abrasive nkag mus rau hauv plunger-chim tshem tawm, lawv pib nkag mus rau hauv phosphate txheej, tiv thaiv lawv los ntawm kev sib tw ntawm cov tawv nitrocarburised nto. Raws li cov phosphate txheej hnav, nws tsis tu ncua nthuav tawm cov khoom tshiab, tsis muaj oxidised uas tswj cov kev sib txhuam qis thiab tiv thaiv kev sib tsoo txias. Qhov no tus kheej-saib mechanism yog tshwj xeeb tshaj yog zoo nyob rau hauv lub twj tso kua mis ua hauj lwm nrog high-sulphur fuels los yog nyob rau hauv ib puag ncig nrog nplua xuab zeb intrusion. Hauv kev sim teb nrog cov cuab yeej tsim kho kev ua haujlwm hauv cov suab puam, 00U162 / U162 tswj nws qhov kev tshem tawm hauv qhov hloov pauv (4.0 µm) rau 6,500 teev, piv rau 4,200 teev rau ib txheej nitrided plungers{19}}55% kev txhim kho nyob rau hauv durability.

Ib txoj kev kuaj tsis ncaj tab sis muaj txiaj ntsig zoo rau 00U162 / U162 yog kev tshuaj xyuas cov khoom siv hauv lub twj tso kua mis rov qab roj. Siv cov hlau nplaum yooj yim thiab cov ntawv lim, ib qho piv txwv ntawm cov roj rov qab tau dhau los ntawm ib qho mesh zoo (10 µm) thiab cov khoom khaws cia tau raug tshuaj xyuas hauv lub tshuab hluav taws xob qis. Lub plunger noj qab nyob zoo tsim cov khoom siv hlau tsawg tsawg- feem ntau tsawg dua tsib qhov pom pom ntawm 100 ml ntawm roj. Yog tias tus lej ntau dua 20 qhov, lossis yog tias cov khoom zoo li ci ntsa iab, qhov cuam tshuam tsis zoo, qhov no qhia tau tias muaj kev sib txhuam nrawm nrawm, yuav yog vim muaj kev cuam tshuam cov roj pom lossis cov txheej txheem phosphate degraded. Qhov kev ntsuam xyuas no tuaj yeem ua tau thaum lub sij hawm niaj hnub hloov roj lim thiab muab kev ceeb toom ntxov ntawm plunger degradation, tso cai rau kev hloov pauv tau teem sijhawm ua ntej lub twj tso kua mis raug kev puas tsuaj loj. Tsis zoo li lub sij hawm poob, uas ntsuas kev tshem tawm ncaj qha, kev tsom xam particle ncaj qha qhia qhov hnav mechanism ntawm kev ua haujlwm.

❓ Lub duplex txheej piv rau DLC (pob zeb diamond zoo li carbon) txheej li cas ntawm kev hnav tsis kam?
Cov txheej txheej duplex (nitrocarburising + phosphate) yog qhov nyuaj me ntsis dua li DLC (1,000 HV vs . 2,000 HV) tab sis muaj kev tiv thaiv zoo dua rau kev puas tsuaj thiab ua siab ntev rau kev ua haujlwm me me. Rau feem ntau daim ntawv thov kev ua haujlwm nruab nrab, cov txheej txheem duplex muab piv rau kev pabcuam lub neej ntawm tus nqi qis.

❓ Lub 00U162 / U162 puas tuaj yeem siv rau hauv lub twj tso kua mis ua haujlwm nrog B30 biodiesel?
Yog lawm, phosphate txheej muab kev tiv thaiv corrosion tiv thaiv cov acidity ntau dua ntawm biodiesel. Txawm li cas los xij, biodiesel lub viscosity siab dua tuaj yeem ua rau me ntsis nce kev siv zog; saib xyuas cov roj rov qab kub thiab qhov chaw khib rau txhua qhov kev hloov pauv.

❓ Dab tsi yog qhov laj thawj tseem ceeb ntawm phosphate txheej tsis ua haujlwm, thiab kuv tuaj yeem tiv thaiv nws li cas?
Qhov laj thawj tseem ceeb yog tuav kev puas tsuaj- khawb los ntawm cov cuab yeej hlau lossis cov ntaub abrasive. Ib txwm siv cov cuab yeej yas lossis tooj dag thaum tuav lub plunger, thiab ntxuav nws nrog cov kuab tshuaj thiab cov ntaub tsis muaj lint-dawb nkaus xwb. Tsis tas li ntawd, xyuas kom meej tias cov roj lim hloov tsis tu ncua kom txo cov khoom abrasive tsawg.

❓ Yuav ua li cas feem ntau yuav tsum tau coj particle tsom xam nyob rau hauv ib tug high-plua plav puag ncig?
Rau kev tsim kho thiab cov khoom siv mining, ua qhov kev ntsuam xyuas txhua 500 teev ua haujlwm. Yog hais tias cov particle suav ntau tshaj 15 rau 100 ml, tshuaj xyuas cov roj pom thiab txiav txim siab luv luv lub lim hloov lub sijhawm.

❓ Puas yog nws tsim nyog los hloov lub chim thaum txhim kho 00U162 / U162 plunger tshiab?
Yog, vim hais tias lub thoob khib nyiab yuav hnav tsis sib xws, thiab cov txheej txheem duplex yog tsim los ua haujlwm nrog kev tshem tawm tshwj xeeb. Weifu muab lub plunger thiab chim raws li qhov sib txuam; kev siv lub thoob siv yuav cuam tshuam qhov kev tshem tawm thiab ua kom nrawm nrawm.

❓ Dab tsi yog qhov kev pom zoo khaws cia rau cov khoom seem plungers nrog duplex txheej?
Khaws rau hauv qhov chaw qhuav, qhov kub thiab txias (15-25 degree) nrog cov av noo qis dua 60%. Lub plunger yuav tsum tau khaws cia rau hauv nws qhov qub ntim nrog cov roj tiv thaiv zaj duab xis kom zoo. Tsis txhob kov cov coated nto nrog txhais tes liab qab, vim cov roj ntawm daim tawv nqaij tuaj yeem ua rau corrosion.