Tus nqi ntawm tej abrasive yog txiav txim los ntawm lub muaj nuj nqis, zoo thiab cov nuj nqis ntawm lub workpiece ua ib chav tsev lub sij hawm (xws li abrasive, consumable thiab ua hauj lwm).
Tam sim no, ib txhia siab hardness ntxhib no los txhuam (hlau tshuaj, hlau sands) nyob rau hauv kev ua lag luam yuav tau ceev nrooj huv (los yog ntxiv dag zog), cov abrasive nqi yog tseem tsawg, tab sis cov no abrasive noj yog siab & lub cev tsis kho, txhaj tshuaj tag blasting khoom hnav qhov chaw hnav ua ntej lawm (Hloov cov khoom hnav qhov chaw thaum yuav tsum tau mus lawm, nce nqi), muaj ib tug heev kev khiav hauj lwm cov nqi thiab tsis tau siv, on qhov tsis tooj, ib co lwm yam ntxhib no los txhuam (xws li tsis muaj hardness abrasive), txawm hais tias muaj yog ib tug tsis tshua muaj noj npaum li cas thiab tsis muaj nqe, lawv muaj ib tug ntev tu voj voog, uas tsis muaj productivity, pov tseg ntawm ua hauj lwm thiab kev khiav hauj lwm lub sij hawm, cov ntxhib no los txhuam yuav siv tsis tau.
Nyob rau hauv lub txhaj koob tshuaj tivthaiv blasting khoom, lub abrasive hais yog ntiab tawm los ntawm lub high-ceev YAM log (los yog huab cua nozzles) nyob rau hauv ib tug heev kev kub ceev, impacting lub nto ntawm lub workpiece, sau cov tu, ntxiv dag zog rau cov neeg ua hauj lwm, thiab cov pellets kev cuam tshuam ntawm qhov chaw ntawm lub workpiece txhua lub sij hawm, cov pellets lawv tus kheej yog kev kawm mus rau kev cuam tshuam kev noj, thaum cov khoom tshwm sim los ntawm kev coj thiab tsim kua muag, los ntawm tas mus li kev thiab pheej rov qab shocks, los ntawm kev loj hais mus rau hauv me me, me me hais rau me me hais, thiab thaum kawg vim hais tias tus hais yog heev me me (tsawg tshaj li 0.2 hli) Thiab yuav siv tsis tau, tshem los ntawm hmoov av tshem system.
Cov coj tus nqi ntawm lub Cheebtsam ntawm lub txhaj koob tshuaj tivthaiv blasting khoom muaj feem xyuam rau cov nqi, thiab cov coj tus nqi ntaub ntawv ntawm lub chaw yuav ua sai sai tau los ntawm kev ntxiv hlau xuab zeb, zoo tib yam steel tej ntsiav tshuaj (super standard ntev, multi-bevel lub) los yog loj kev faib ua feem thiab steel pob nws nyob rau hauv cov khoom, ncaj qha txo qhov chaw lub neej ntawm 50% -80%.
Lub hardness ntawm lub abrasive muaj feem xyuam rau lub tu ceev thiab zoo, siab hardness abrasive muaj feem xyuam rau lub tu ceev, lub resilience thiab lub finish ntawm lub workpiece. Nyob rau hauv tej yam tshwm sim, qhov zoo tagnrho hardness ntawm lub abrasive ntau yam ntawm HRC40-50, mus ua txhaum tau yooj yim rau ib qho nyuaj, rau deformation rau mos. Qhov luaj li cas ntawm cov abrasive txiav txim seb tus tu zoo (finish).
Mixed abrasive txiav txim seb tus nqi ntawm peening:
Steel txhaj koob tshuaj tivthaiv ua hauj lwm kuj yog me me, nrog rau cov uas tsim nyog hardness, siab resilience, huv yog siab thaum nruam blasting cov ua hauj lwm nto, tab sis tsis yooj yim mus pov tseg ib yam teeb roughness, cov kev cai ntawm lub txheej txheem qhov chaw, nto roughness muaj ib tug zoo feem nyob rau hauv cov xim Membrane adhesion, corrosion kuj thiab tiv thaiv lub neej. Lub roughness ntawm lub workpiece nto yog conducive mus rau lub kev txhim kho ntawm tus tiv thaiv thaj chaw ntawm cov zaj duab xis, lub roughness yog heev me me, yog tsis conducive mus rau kev txhim kho ntawm lub adhesion ntawm cov xim muaj hlau, roughness yog loj heev, xws li tus nqi ntawm cov xim zaj duab xis yog tej yam, nws yuav ua rau cov zaj duab xis thickness faib sis tsis ncaj, tshwj xeeb tshaj yog ntawm lub ncov ntawm cov zaj duab xis thickness yog tsis txaus thiab qis dua tus tsim yuav tsum tau, yuav ua tau rau thaum ntxov xeb, nyob rau hauv tas li ntawd, lub roughness yog loj heev, tab sis feem ntau kuj nyob rau hauv lub tob sab qho to yuav tau cov npuas, yuav los ua lub hauv paus ntawm cov zaj duab xis npuas.
Rau feem ntau siv txheej, cov uas tsim nyog roughness yog li mus 39-75um. Yog li ntawd yuav tsum tau tsim nyog mus siv mixed abrasive, ntxiv steel zeb kom zoo. Cov kev faib ua feem raws li cov txheej txheem uas yuav tsum tau, yog li ntawd neb ob leeg yuav sai sai tu (txhim kho kev ua hauj lwm efficiency) thiab yuav muab pov tua peening khoom coj mus rau ib tug tsawg kawg nkaus (tswj cov khoom nqi) thiab zoo kom tau raws li lub txheej uas yuav tsum tau (kom txo xim pov tseg ), Yog li kom txhob muaj cov zuag qhia tag nrho cov nqi.
Post lub sij hawm: Jan-07-2019