Nekuti hapana mwero wepasi rose unotsanangura mamakisi ecarbide kana maapplication, vashandisi vanofanirwa kuvimba nekutonga kwavo uye neruzivo rwekutanga kuti vabudirire.#base
Nepo izwi resimbi rekuti "carbide giredhi" richireva zvakananga tungsten carbide (WC) yakanyudzwa necobalt, izwi iri rine chirevo chakafara mukugadzira: simende tungsten carbide yakasanganiswa nemabhandi uye kumwe kurapwa.Semuyenzaniso, maviri anochinjika anopinza akagadzirwa kubva kune imwechete carbide zvinhu asi ane machira akasiyana kana mushure mekurapwa anoonekwa magiredhi akasiyana.Nekudaro, hapana kumira muchikamu checarbide uye coating musanganiswa, saka vatengesi vezvishandiso vakasiyana-siyana vanoshandisa mazita akasiyana uye nzira dzekuisa mumatafura avo egiredhi.Izvi zvinogona kuita kuti zviome kumushandisi wekupedzisira kuenzanisa mamakisi, inyaya ine hunyengeri sezvo kukodzera kwegiredhi recarbide kune yakapihwa application kunogona kukanganisa zvakanyanya mamiriro ekucheka uye hupenyu hwematurusi.
Kuti ufambise maze iyi, mushandisi anofanira kutanga anzwisisa kuti giredhi recarbide rakagadzirwa sei uye kuti chinhu chimwe nechimwe chinokanganisa sei zvakasiyana zvemachining.
Iyo inotsigirwa chinhu chisina chinhu chekucheka chinopinza kana chakasimba chishandiso pasi pekuputira uye mushure mekurapa.Kazhinji inosanganisira 80-95% WC.Kupa iyo substrate iyo inodiwa zvivakwa, vagadziri vezvinhu vanowedzera akasiyana alloying zvinhu kwairi.Chinhu chikuru chekubatanidza icobalt (Co) - yakakwira cobalt yemukati inoguma nekuoma kukuru, nepo yakaderera cobalt yemukati inowedzera kuoma.Ma substrates akanyanya kuoma anogona kusvika 1800 HV uye anopa yakanakisa kupfeka kuramba, asi ane brittle uye anokodzera chete kugadzikana kwakanyanya.Iyo substrate yakasimba kwazvo ine kuoma kwe1300 HV.Aya ma substrates anogona kungogadzirwa neakadzika kucheka kumhanya, anopfeka nekukurumidza, asi anonyanya kushingirira kuvhiringika kucheka uye nemamiriro akashata.
Kuyera kwakaringana pakati pekuoma uye kuoma ndicho chinhu chakakosha pakusarudza alloy yeimwe application.Kusarudza giredhi rakanyanya kuoma kunogona kukonzera micro-kutsemuka kwekucheka kumucheto kana kutadza kutadza.Panguva imwecheteyo, mamakisi akaomesesa anopera nekukurumidza kana anoda kuderedzwa kwekucheka kukurumidza, izvo zvinoderedza kubereka.Tafura 1 inopa mamwe ekutanga nhungamiro yekusarudza iyo chaiyo durometer:
Mazhinji emazuva ano anoisa carbide uye maturusi ecarbide akaputirwa nefirimu rakatetepa (3 kusvika 20 microns kana 0.0001 kusvika 0.0007 inches).Iyo yekupfekedza kazhinji ine zvidimbu zvetitanium nitride, aluminium oxide uye titanium carbonitride.Uku kupfekedza kunowedzera kuomarara uye kunogadzira chinodzivirira chinopisa pakati pekuchekwa uye substrate.
Kunyangwe zvakangowana mukurumbira makore gumi apfuura, kuwedzera imwe yekuwedzera-yekuputira kurapwa kwave kuita indasitiri chiyero.Mishonga iyi inowanzova sandblasting kana dzimwe nzira dzekupolisha dzinopfavisa chikamu chepamusoro uye kuderedza kukwesha, nekudaro kudzikisira chizvarwa chekupisa.Musiyano wemutengo unowanzo diki uye muzviitiko zvakawanda post-processing inokurudzirwa kusarudzwa kwakasiyana.
Kuti usarudze iyo chaiyo carbide giredhi kune imwe application, tarisa kune mutengesi kabhuku kana webhusaiti kuti uwane mirairo.Kunyange pasina chiyero chepasirese, vatengesi vazhinji vanoshandisa machati kutsanangura iyo inokurudzirwa mashandiro emagiredhi zvinoenderana ne "chiyero" chinoratidzwa senge matatu-mavara/nhamba musanganiswa, seP05-P20.
Tsamba yekutanga inoratidza boka rezvinhu zvinoenderana neiyo ISO standard.Boka rimwe nerimwe rezvinyorwa rinogoverwa tsamba uye ruvara runoenderana.
Nhamba mbiri dzinotevera dzinomiririra chiyero chekuoma kwegiredhi, kubva pa05 kusvika ku45 mukuwedzera kwe5. 05 zvikumbiro zvinoda giredhi rakaoma kwazvo rakakodzera mamiriro akanaka uye akagadzikana.45 Chikumbiro chinoda giredhi rakaomarara rakakodzera mamiriro akaoma uye asina kugadzikana.
Zvekare, hapana chiyero chezvinokosha izvi, saka zvinofanirwa kududzirwa sezviyero zvehukama mune imwe tafura yegiredhi maanoonekwa.Semuenzaniso, giredhi rakanyorwa P10-P20 mumakatalogi maviri kubva kune vakasiyana vatengesi rinogona kuve nekuoma kwakasiyana.
Kunyangwe mune imwecheteyo kabhuku, giredhi rakanyorwa P10-P20 mugiredhi rekuchinja tafura rinogona kuve nekuoma kwakasiyana pane giredhi rakanyorwa P10-P20 mugiredhi tafura.Musiyano uyu unouya pasi pemamiriro akasiyana akanaka kune akasiyana maapplication.Kushandura mashandiro kunoitwa zvakanyanya nemagiredhi akaomarara, asi kana kugaya, mamiriro akanaka anoda rimwe simba nekuda kwechimiro chepakati.
Tafura 3 inopa tafura yekufungidzira yealloys uye mashandisiro ayo muakasiyana akaomesesa ekushandura maitirwo ayo anogona kunyorwa mune yekucheka dhizaini yemugovera.Mumuenzaniso uyu, kirasi A inokurudzirwa kune ese mamiriro ekutendeuka, asi kwete kune inorema yakavharwa kucheka, nepo kirasi D inokurudzirwa kune inorema yakakanganiswa kutendeuka uye mamwe mamiriro asina kunaka.Zvishandiso zvakaita seMachiningDoctor.com's Grades Finder inogona kutsvaga mamakisi uchishandisa iyi notation.
Sezvo pasina chiyero chepamutemo chehukuru hwekirasi, hapana chiyero chepamutemo chekusarudzwa kwekirasi.Nekudaro, mazhinji evakuru vecarbide ekuisa vatengesi vanoteedzera nhungamiro yemaitiro avo egiredhi.Mazita e "Classic" ari muchimiro chemavara matanhatu BBSSNN, uko:
Tsananguro iri pamusoro ndeyechokwadi muzviitiko zvakawanda.Asi sezvo iyi isiri ISO/ANSI mwero, vamwe vatengesi vanogadzira yavo yega kuhurongwa, uye hungwaru kuziva shanduko idzi.
Magiredhi anoita basa rakakosha mukushandura mafomu kupfuura chero imwe application.Naizvozvo, kana uchitsvaga chero katalogi yevatengesi, chikamu chinoshanduka chichava nesarudzo huru yemagiredhi.
Izvi zvakasiyana-siyana zvekuchinja magiredhi mhedzisiro yemhando dzakasiyana dzekuchinja.Ichi chikamu chinotangira kubva pakuramba kuchicheka (apo kucheka kunogara kuchiita neworkpiece uye hakubatike, asi kunoburitsa kupisa kwakawanda) kusvika kunokanganisa kucheka (apo mhedzisiro yakasimba inoitika).
Yakasiyana-siyana yekuchinja mamakisi inobatanidzwawo nemadhayamita akasiyana mukugadzira, kubva pa1/8 ″ (3mm) yemashini emhando yeswiss kusvika ku100 ″ yekushandisa inorema maindasitiri.Nekuti kumhanya kwekucheka kunoenderanawo nedhayamita, magiredhi akasiyana anodiwa ayo akagadziridzwa kune yakaderera kana yakakwirira yekucheka kumhanya.
Vatengesi vakuru vanowanzopa akaparadzana akatevedzana mamakisi kuboka rega rega rezvinhu.Magiredhi ega ega akateedzana kubva kune yakaoma zvinhu zvekuvhiringidza kucheka kusvika kune yakaoma zvinhu zvekuramba uchicheka.
Pakugaya, huwandu hwemagiredhi anopihwa hudiki.Nekuda kwekupindirana kwechimiro chechishandiso, maturusi ekugaya anoda mamakisi akaomarara ane akanyanya kupikisa kuramba.Nokuda kwechikonzero chimwe chete, kupfekedza kunofanira kuva kwakaonda, kana zvisina kudaro hakuzomiri.
Vazhinji vatengesi vanogadzira mapoka akasiyana-siyana ane mabhegi akaomarara uye machira akasiyana.
Pakuparadzana kana kukorokoza, kusarudzwa kwegiredhi kunogumira nekuda kwekucheka kukurumidza zvinhu.Kureva kuti dhayamita rinova diki sezvo kucheka kunosvika pakati.Nokudaro, kukurumidza kucheka kunoderedzwa zvishoma nezvishoma.Kana uchicheka wakananga pakati, kumhanya kunopedzisira kwasvika zero pakupera kwekuchekwa, uye oparesheni inova shear pachinzvimbo chekucheka.
Nekudaro, kunaka kwekuparadzanisa kunofanirwa kuenderana nehupamhi hwekucheka kumhanya, uye iyo substrate inofanirwa kunge yakasimba zvakakwana kuti imirire shear pakupera kwekushanda.
Shallow grooves inosiyana kune mamwe marudzi.Nekuda kwekufanana nekutendeuka, vatengesi vane sarudzo yakakura yekuisa grooving kazhinji vanopa huwandu hwakakura hwemagiredhi kune mamwe mapoka ezvinyorwa uye mamiriro.
Pakuchera, kumhanya kwekucheka pakati pechibooreso kunogara ku zero, nepo kukurumidza kucheka padivi kunoenderana nehupamhi hwechibooreso uye nekumhanya kwekutenderera kweiyo spindle.Magiredhi akagadziridzwa kumhanya kwekucheka kwakanyanya haana kukodzera uye haafanire kushandiswa.Vazhinji vatengesi vanopa mhando shoma chete.
Zvitoro zvakawanda zvinokanganisa kufunga kuti maturusi epamusoro iplug-and-play.Maturusi aya anogona kukwana mumidziyo iripo uye anotokwana mugayo rimwe chete regoko kana kutenderedza homwe sekuisa carbide, asi ndipo panoperera kufanana.
Hupfu, zvikamu, uye zvigadzirwa inzira dzakasiyana makambani ari kusundira kuwedzera kwekugadzira.Carbide uye maturusi ekucheka inzvimbo dzakasiyana dzekubudirira.
Iyo Ceratizit WTX-HFDS yakatevedzana yekudhirowa yakachengetedza OWSI 3.5 maminetsi pachikamu mumabasa akaomarara uye yakabvisa zvachose mabasa asina kukosha, achiwedzera purofiti.
Nguva yekutumira: Aug-21-2023