Hauv CNC cov cuab yeej tswj cov lej, txawm hais tias granite tau dhau los ua cov khoom siv tseem ceeb vim nws cov khoom tshwj xeeb, nws qhov kev tsis txaus ntseeg kuj tseem yuav muaj qee yam cuam tshuam rau cov cuab yeej ua haujlwm, kev ua haujlwm zoo thiab cov nqi kho. Cov hauv qab no yog ib qho kev soj ntsuam ntawm qhov tshwj xeeb cuam tshuam los ntawm qhov tsis txaus ntawm granite los ntawm ntau qhov ntev:
Ua ntej, cov khoom siv yog nkig heev thiab nquag tawg thiab puas
Cov ntsiab lus tsis zoo: Granite yog lub pob zeb ntuj thiab yog ib qho tseem ceeb ntawm cov khoom siv tawv tawv nrog cov khoom tsis zoo (qhov cuam tshuam rau tus nqi yog kwv yees li 1-3J / cm², uas qis dua 20-100J / cm² ntawm cov khoom siv hlau).
Kev cuam tshuam rau cov khoom siv CNC:
Kev pheej hmoo ntawm kev teeb tsa thiab kev thauj mus los: Thaum lub sij hawm sib dhos lossis tuav cov cuab yeej, yog tias nws raug kev sib tsoo lossis poob, cov khoom siv granite (xws li cov hauv paus thiab cov lus qhia) yog qhov ua rau tawg lossis tawg ntawm cov ces kaum, ua rau qhov tsis raug. Piv txwv li, yog tias lub granite platform ntawm peb lub tshuab ntsuas kev sib koom ua ke txhim kho cov kab nrib pleb vim kev ua haujlwm tsis raug thaum lub sijhawm teeb tsa, nws yuav ua rau muaj kev cuam tshuam tsis zoo ntawm flatness nyob rau lub sij hawm ntev, cuam tshuam rau kev ntsuas cov txiaj ntsig.
Kev phom sij zais hauv cov txheej txheem ua tiav: Thaum CNC cov cuab yeej ntsib kev sib tsoo tam sim ntawd (xws li cov cuab yeej sib tsoo nrog cov khoom ua haujlwm), cov lus qhia granite los yog cov rooj ua haujlwm yuav tawg vim qhov tsis muaj peev xwm tiv taus qhov cuam tshuam tam sim ntawd, ua rau cov cuab yeej kaw rau kev saib xyuas, thiab txawm tias ua rau cov saw hlau tsis zoo.
Qhov thib ob, kev ua haujlwm siab txwv tsis pub tsim cov txheej txheem nyuaj
Cov ntsiab lus tsis zoo: Granite muaj qhov nyuaj siab (6-7 ntawm Mohs nplai), thiab nws yuav tsum tau ua hauv av thiab ua tiav nrog cov cuab yeej tshwj xeeb xws li pob zeb diamond sib tsoo log, ua rau kev ua haujlwm qis (milling efficiency tsuas yog 1/5 txog 1/3 ntawm cov khoom siv hlau), thiab tus nqi ntawm kev ua cov txheej txheem nkhaus yog siab.
Kev cuam tshuam rau cov khoom siv CNC:
Cov qauv tsim cov kev txwv: Kom tsis txhob muaj teeb meem kev ua haujlwm, cov khoom siv granite feem ntau yog tsim los ntawm cov duab geometric yooj yim (xws li daim hlau, cov duab plaub txoj kev qhia), ua rau nws nyuaj rau kev ua tiav cov kab noj hniav hauv cov kab noj hniav, lub teeb hnyav stiffened daim hlau thiab lwm cov qauv uas tuaj yeem ua tiav los ntawm casting / txiav nrog cov ntaub ntawv hlau. Qhov no ua rau qhov tseeb tias qhov hnyav ntawm lub hauv paus granite feem ntau loj heev (10% -20% hnyav dua li cam khwb cia hlau rau tib lub ntim), uas tuaj yeem ua rau cov khoom siv tag nrho thiab cuam tshuam rau kev ua haujlwm ntawm cov lus teb thaum muaj kev kub ceev.
Cov nqi kho mob siab thiab hloov pauv: Thaum lub zos hnav lossis kev puas tsuaj tshwm sim rau cov khoom siv granite, nws nyuaj rau kho lawv los ntawm txoj kev xws li vuam lossis txiav. Feem ntau, tag nrho cov khoom yuav tsum tau hloov, thiab cov khoom tshiab yuav tsum tau rov ua dua thiab ntsuas qhov tseeb, ua rau lub sijhawm poob qis (ib qho kev hloov pauv yuav siv sijhawm 2-3 lub lis piam), thiab cov nqi kho mob tseem ceeb nce ntxiv.
Iii. Tsis paub meej ntawm Natural Textures thiab Internal Defects
Core drawback: Raws li ib tug natural ntxhia, granite muaj uncontrollable sab hauv fissures, pores los yog mineral impurities, thiab cov khoom uniformity ntawm txawv veins txawv heev (density fluctuation mus txog ± 5%, elastic modulus fluctuation ± 8%).
Kev cuam tshuam rau cov khoom siv CNC:
Precision stability txaus ntshai: Yog tias qhov chaw ua haujlwm ntawm cov khoom tshwm sim muaj cov kab nrib pleb sab hauv, thaum siv mus ntev, cov kab nrib pleb yuav nthuav dav vim muaj kev ntxhov siab, ua rau lub zos deformation thiab cuam tshuam rau qhov tseeb ntawm cov khoom siv. Piv txwv li, yog hais tias lub granite qhia rails ntawm lub CNC sib tsoo tshuab muaj zais cua qhov, lawv yuav maj mam vau nyob rau hauv high-frequency kev co, uas ua rau ntau straightness yuam kev ntawm cov lus qhia rails.
Batch kev ua tau zoo sib txawv: Granite cov ntaub ntawv los ntawm cov khoom sib txawv tuaj yeem muaj kev hloov pauv hauv cov cim tseem ceeb xws li coefficient ntawm thermal expansion thiab damping kev ua tau zoo vim qhov sib txawv ntawm cov ntxhia hauv cov ntxhia, uas cuam tshuam rau qhov sib xws ntawm cov khoom tsim los ntawm cov khoom siv. Rau cov kab ntau lawm uas yuav tsum tau muaj kev sib cuam tshuam ntawm ntau yam khoom siv, qhov sib txawv no yuav ua rau muaj kev cuam tshuam ntawm kev ua kom raug.
Plaub, nws hnyav, uas cuam tshuam rau kev ua haujlwm zoo ntawm cov khoom siv
Core drawback: Granite muaj qhov ntom ntom (2.6-3.0g / cm³), thiab nws qhov hnyav yog kwv yees li 1.2 npaug ntawm cov hlau cam khwb cia thiab 2.5 npaug ntawm aluminium alloy nyob rau hauv tib lub ntim.
Kev cuam tshuam rau cov khoom siv CNC:
Cov lus teb kev lag luam: Hauv cov chaw ua haujlwm siab ceev lossis lub tshuab tsib-axis, qhov loj ntawm granite hauv paus yuav ua rau cov khoom siv hluav taws xob ntau ntxiv ntawm cov kab hluav taws xob / cov ntsia hlau, uas ua rau cov lus teb tsis zoo thaum lub sij hawm acceleration / deceleration (uas yuav ua rau kom lub sij hawm pib-nres los ntawm 5% mus rau 10%), cuam tshuam rau kev ua haujlwm.
Kev siv hluav taws xob ntau ntxiv: Tsav cov khoom siv granite hnyav yuav tsum muaj zog servo motors, uas ua rau lub zog tag nrho ntawm cov khoom siv (kev ntsuas qhov tseeb qhia tau tias nyob rau hauv tib txoj haujlwm, lub zog siv ntawm cov khoom siv granite yog 8% -12% siab dua li cov khoom siv hlau cam khwb cia). Kev siv mus sij hawm ntev yuav ua rau cov nqi ntau lawm.
Tsib, lub peev xwm los tiv thaiv thermal shock yog txwv
Core drawback: Txawm hais tias granite muaj qhov sib txawv ntawm thermal expansion, nws cov thermal conductivity tsis zoo (nrog thermal conductivity ntawm tsuas yog 1.5-3.0W / (m · K), kwv yees li 1/10 ntawm cov hlau cam), thiab tam sim ntawd qhov kub ntawm lub zos hloov yog nquag tsim thermal stress.
Kev cuam tshuam rau cov khoom siv CNC:
Qhov kub ntawm qhov sib txawv ntawm qhov chaw ua haujlwm: Yog tias cov kua txiav ua kom pom tseeb ua rau thaj chaw hauv cheeb tsam ntawm granite worktable, nws yuav ua rau qhov kub thiab txias (xws li qhov kub ntawm qhov sib txawv ntawm 5-10 ℃) ntawm thaj chaw no thiab thaj chaw ib puag ncig, ua rau me thermal deformation (deformation npaum li cas tuaj yeem ncav cuag 1-3μm), uas cuam tshuam rau qhov kev sib tsoo ntawm qhov tseeb (qib kev sib tsoo micro).
Lub sij hawm ntev thermal qaug zog txaus ntshai: Nyob rau hauv ib puag ncig kev cob qhia nrog nquag pib thiab kaw lossis qhov kub sib txawv ntawm nruab hnub thiab hmo ntuj, granite Cheebtsam tuaj yeem tsim microcracks vim rov ua thermal expansion thiab contraction, maj mam ua kom cov txheej txheem rigidity.
Post lub sij hawm: May-24-2025