Nyob rau hauv machining, qhov kev ua lag luam yog kwv yees li ib feem tsib ntawm tag nrho cov nyiaj ntawm machining, ntawm cov drilling nyiaj li ntawm 30 feem pua ntawm tag nrho lub qhov ua. Kuv ntseeg tias cov kiv cua kub ua haujlwm nyob rau hauv pem hauv ntej kab ntawm drilling yog paub txog cov khoom siv tho. Thaum yuav cov khoom siv laum, yuav muaj cov khoom sib txawv ntawm cov khoom thiab xim. Yog li dab tsi yog qhov txawv ntawm cov xim sib txawv ntawm cov laum khoom? Puas yog xim muaj feem xyuam rau qhov zoo ntawm cov khoom laum? Yam xim ntawm laum khoom zoo dua mus yuav?
Puas yog xim ntawm me ntsis cuam tshuam rau qhov zoo?
Ua ntej ntawm tag nrho cov, nws yog tsis yooj yim sua kom paub qhov txawv qhov zoo ntawm laum me ntsis los ntawm cov xim. Tsis muaj kev sib raug zoo ntawm cov xim thiab zoo. Cov xim sib txawv yog cov txheej txheem sib txawv. Tau kawg, kev txiav txim siab dav dav tuaj yeem tsim los ntawm cov xim, tab sis tam sim no, cov khoom siv tsis zoo yuav ua rau lawv tus kheej cov xim kom ua tiav cov tsos ntawm cov khoom siv zoo. Style.
Dab tsi yog qhov sib txawv ntawm cov xim sib txawv?
High-zoo tag nrho sib tsoo high-speed steel laum khoom feem ntau tshwm sim dawb. Tau kawg, dov laum khoom tuaj yeem ua tiav dawb los ntawm kev sib tsoo lub voj voog sab nraud. Yog vim li cas vim li cas nws yog qhov zoo yog tias ntxiv rau cov khoom siv nws tus kheej, kev tswj kom zoo hauv cov txheej txheem sib tsoo kuj tseem nruj heev, thiab yuav tsis muaj qhov kub hnyiab ntawm lub cuab yeej. Dub yog ib tug nitrided laum me ntsis, uas yog ib tug tshuaj txoj kev los txhim kho lub durability ntawm lub cuab tam tom qab muab lub tiav cov cuab yeej nyob rau hauv ib tug sib tov ntawm ammonia thiab dej vapor. Tom qab kev kho cua sov ntawm 540 ~ 560C. Tam sim no, feem ntau ntawm cov laum dub nyob rau hauv kev ua lag luam tsuas yog cov xim dub xwb (kom npog qhov kub hnyiab lossis tawv tawv dub ntawm qhov chaw ntawm lub cuab yeej), tab sis qhov kev siv tiag tiag tsis tau ua kom zoo dua qub.
Muaj peb txheej txheem los tsim cov khoom siv laum. Dub yog dov, uas yog qhov phem tshaj. Tus dawb yog ntshiab thiab hauv av. Vim tias tsis zoo li dov, nws tsis tsim cov oxidation kub, cov qauv ntawm cov hlau tsis tau puas lawm thiab yog siv los laum workpieces nrog me ntsis hardness. Lub tan laum me ntsis yog hu ua cobalt-muaj laum nyob rau hauv kev lag luam, uas yog txoj cai unspoken ntawm kev lag luam ntawm me ntsis no. Cobalt-muaj pob zeb diamond yog Ameslikas dawb thiab hauv av thiab tsim. Thaum nws tom qab atomized, nws tau ua los ntawm tan (feem ntau hu ua amber), uas yog qhov zoo tshaj plaws nyob rau hauv tam sim no. Lwm Hom M35 (Co 5 feem pua) yog Kub. Hom Drill Bit no yog hu ua Titanium-plated Drill, uas tau muab faib ua Hniav Plating thiab Industrial Plating. Kho kom zoo nkauj plating tsis muaj qhov cuam tshuam, tab sis nws zoo nkaus li zoo thiab kub. Kev lag luam plating yog qhov zoo heev, thiab qhov hardness tuaj yeem ncav cuag HRC78, uas yog siab dua li cov cobalt uas muaj cov xyaum ua haujlwm (HRC54).
