Self-lubricating Roj Bearing Powder Metallurgy Pressed Parts

Khoom Taw Qhia

Hmoov metallurgy roj-impregnated bearings xa mus rau zawv zawg bearings ua los ntawm cov khoom ntxeem tau nrog cov roj lubricating khaws cia hauv qhov pores.

Hmoov metallurgy roj bearing

zawv zawg bearings nrog lubricating roj nyob rau hauv lub pores ntawm cov khoom ntxeem tau

Sib txawv: Thermal Expansion Coefficients ntawm Porous Materials thiab Lubricating Roj

Nta: tus nqi qis, kev vibration absorption, tsis tshua muaj suab nrov

Lub thermal expansion coefficients ntawm cov ntaub ntawv ntxeem tau thiab cov roj lubricating sib txawv, yog li cov roj tau nyem rau hauv qhov sib txhuam ntawm qhov hws thaum nws ua haujlwm, thiab cov roj tau nqus rov qab rau hauv lub qhov hws thaum qhov kub thiab txias thaum nws tsis ua haujlwm. Roj-impregnated bearings muaj cov yam ntxwv ntawm tus nqi qis, kev vibration absorption, tsis tshua muaj suab nrov, thiab tsis tas yuav ntxiv cov roj lubricating thaum lub sijhawm ua haujlwm ntev. Lawv yog tshwj xeeb tshaj yog haum rau kev ua hauj lwm ib puag ncig uas tsis yooj yim rau lubricate los yog tsis cia cov roj ua qias neeg. Self-lubricating roj bearing hmoov metallurgy nias qhov chaw Porosity yog ib qho tseem ceeb parameter rau roj bearings. Roj-impregnated bearings ua hauj lwm ntawm kev kub ceev thiab lub teeb load yuav tsum muaj roj cov ntsiab lus thiab siab porosity; roj-impregnated bearings kev khiav hauj lwm ntawm tsawg ceev thiab hnyav load yuav tsum tau muaj zog thiab tsawg porosity.

Khoom siv

Roj-impregnated bearing cov ntaub ntawv feem ntau suav nrog cov hlau ntxeem tau thiab cov yas ntxeem tau. Roj-impregnated bearings ua los ntawm cov hlau ntxeem tau muab faib ua hlau-raws li thiab tooj liab raws li cov khoom siv hauv paus. Tus qub muaj lub peev xwm loj, tab sis nws yooj yim rau cov kua nplaum nrog cov hlau ncej; tom kawg muaj qhov tso cai siab dua tab sis kim dua. Cov khoom ntxeem tau siv hauv cov roj bearings yog thermosetting yas, xws li nylon, phenolic resin, thiab lwm yam.

Nta

Qhov saum npoo ntawm cov porous yas roj-impregnated bearing yog mos heev, nws tsis yooj yim rau kev puas tsuaj rau cov phau ntawv journal, thiab ib tug loj concentricity kam rau ua, tab sis lub zog thiab rigidity yog qis dua cov ntxeem tau hlau roj-impregnated bearing, lub load- bearing muaj peev xwm me me, thiab thermal stability thiab thermal conductivity tsis zoo. Txhawm rau txhim kho qhov tsis txaus ntawm cov yas ntxeem tau, lub thickness ntawm cov yas txheej yuav raug txo kom ntau li ntau tau, thiab cov hlau thaub qab yog siv los txhawb cov txheej nyias nyias. FU tooj liab-raws li roj-muaj nws tus kheej-lubricating bearing yog ua los ntawm tin bronze hmoov raws li raw khoom, nias los ntawm pwm, sintered ntawm kub kub, thiab ces zoo li tus. Nws cov matrix muaj nplua thiab sib npaug ntawm qhov pores, uas tsim lub xeev oily tom qab nqus impregnation nrog lubricating roj. Cov khoom no muaj cov yam ntxwv ntawm lub sij hawm luv luv tsis muaj lubrication, tsis tshua muaj nqi ntawm kev siv, thiab kuj sib txawv nyob rau hauv lub puab thiab sab diameters, thiab yog haum rau siv nyob rau hauv qhov chaw nrog nruab nrab ceev thiab tsawg load.

Daim ntawv thov

Self-lubricating roj bearing hmoov metallurgy nias qhov chaw yog dav siv hauv cov khoom siv hauv tsev, cov cuab yeej hluav taws xob, textile machinery, tshuaj machinery, tsheb lag luam, khoom siv hauv chaw ua haujlwm thiab qee lub sijhawm siv tshuab.

Kev nyiam

1. Qhov dav ntawm txoj kab uas hla: Vim tias qhov sib txawv ntawm ob qho kawg ntawm bushing feem ntau me dua qhov nruab nrab, lub bushing yuav tsum tsis txhob nqaim dhau;

2. Nias-nyob rau hauv kev cuam tshuam: bushing yuav tsum tau nias rau hauv lub rooj zaum bearing nrog ib tug xovxwm, thiab rauj tsis tso cai;

3. Sab nraud ntawm lub tes tsho ncej thiab lub qhov bearing yuav tsum muaj kev cuam tshuam zoo;

4. Thaum xaiv lub qhov taub qhov siab ntawm lub rooj zaum bearing, qhov kev cuam tshuam siab tshaj plaws yuav tsum tsis txhob ntau tshaj ob zaug ntawm qhov cuam tshuam nruab nrab, thiab qhov cuam tshuam tsawg kawg yuav tsum tsis pub tsawg dua ib nrab ntawm qhov nruab nrab cuam tshuam;

5. Tom qab lub tes tsho yog nias rau hauv lub rooj zaum bearing, lub aperture ntawm lub tes tsho yuav shrink thiab ua me me. Thaum txiav txim siab qhov luaj li cas ntawm phau ntawv journal, qhov shrinkage no yuav tsum tau coj mus rau hauv tus account. Lub shrinkage ntawm lub tes tsho aperture muaj feem xyuam rau qhov cuam tshuam tus nqi, sab hauv thiab sab nraud ntawm lub tes tsho, thiab qhov porosity;

6. Thaum cov khoom muaj elasticity siab thiab rigidity ntawm lub rooj zaum bearing yog siab, nws yog ib qhov tsim nyog los xam lub shrinkage ntawm lub qhov raws li tus nqi siab tshaj, txwv tsis pub, xam lub shrinkage nyob rau hauv lub qhov raws li tus nqi me me.

Hlau Txhaj Moulding txheej txheem

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