Kucheka Machining Of Powder Metallurgy (P / M) Zvikamu

Iko kushandiswa kwehupfu simbi (P / M) maitiro ekugadzira zvikamu zvemagetsi emagetsi masisitimu anoramba achikura. Zvikamu zvinogadzirwa neP / M maitiro zvine zvakawanda zvakakosha uye zvakasarudzika zvakanakira. Iyo yakasara porous chimiro nemaune yakasiyiwa muzvikamu izvi zvakanaka kune wega girisi uye kurira kwekudzivirira. Complex alloys ayo akaoma kana asingagone kugadzira ne echinyakare kukanda maitiro anogona kugadzirwa nekushandisa P / M tekinoroji. Zvikamu zvinogadzirwa neiyi tekinoroji zvinowanzove nezvishoma kana kusakwanisa kugadzira, izvo zvinoita kuti zvive zvakachipa uye zvisashoma marara muzvinhu. Nehurombo, kuseri kwekukwezva kweaya maficha, P / M zvikamu zvinonetsa kumuchina.

Kunyangwe imwe yezvinangwa zvekutanga zveiyo P / M indasitiri iri kubvisa kugadzirisa kwese, ichi chinangwa hachisati chazadzikiswa. Zvikamu zvizhinji zvinongogona kuva "padyo nechimiro chekupedzisira" uye zvichiri kuda kumwe kupedzisa.

Nekudaro, ichienzaniswa nekukandwa uye kukangamwirwa, shoma shoma yezvinhu inoda kubviswa kubva paP / M zvikamu chinhu chakajairika chisingachinjiki zvinhu.

Chimiro chakasarudzika ndechimwe chehunhu hunoita p / M zvikamu zvine mashandisirwo akasiyana siyana, asi hupenyu hwechishandiso hunokuvadzwa neyakaumbwa mamiriro. Yakasarudzika dhizaini inogona kuchengeta oiri uye kurira, asi zvakare inotungamira kune diki yepakati yekucheka. Kana uchifamba uchidzoka nekudzika kubva mugomba uchienda kune yakasimba zvikamu, turu yekushandisa inoenderera ichikanganiswa, izvo zvinogona kutungamira kune kudiki kuneta kuputsika deformation uye kwakanakisa kumucheto kudonha padivi pekucheka. Kuita kuti zvinhu zviwedzere, izvo zvikamu zvinowanzo kuve zvakaoma kwazvo. Kunyangwe kana kuomarara kwemacro yechinhu chakayerwa kuri pakati pemakumi maviri nemakumi matatu nemadhigirii, hukuru hwechikamu hwacho hwakaenzana nemadhigirii makumi matanhatu. Izvi zvakaoma zvikamu zvinokonzeresa zvakanyanya uye nekukurumidza kumucheto kupfeka. Zvakawanda p / M zvikamu zvinopisa kupisa, uye kuomarara uye simba rezvinhu zvakakwirira mushure mekurapa kupisa. Chekupedzisira, nekuda kwekutsvaira uye kupisa kwehunyanzvi hwekurapa uye magasi anoshandiswa, pamusoro pechinhu pachave neakaoma uye anopfeka asingagone oxides uye / kana carbides.

Kuita kweP / M zvikamu

Mazhinji ezvivakwa zveP / M zvikamu, kusanganisira machinability, zvine hukama kwete kwete chete kumakemikari ekuumbwa kweiyo alloy, asiwo kune iyo porosity level yeiyo porous chimiro. Iyo porosity yezvakawanda zvakaumbwa zvikamu inosvika ku15% - 20%. Iyo porosity yezvikamu zvinoshandiswa seye filtration zvishandiso inogona kunge yakakwira se50%. Pane imwe mugumo wenyaya dzakateedzana, iyo porosity yezvakagadzirwa kana zvehudyu zvikamu zvinongova 1% kana zvishoma. Izvi zvinhu zviri kunyanya kukosha mukushandisa kwemotokari uye nendege nekuti vanogona kusvika pamwero wakakwirira wesimba.
Iyo tensile simba, kuomarara uye ductility yeP / M alloy ichawedzera pamwe nekuwedzera kwehuwandu, uye iyo machinability inogona zvakare kuvandudzwa, nekuti iyo porosity inokuvadza kune chishandiso tip.
Kuwedzera kweiyo porosity level kunogona kuvandudza kurira kwekudzivirira kuita kwezvikamu. Iyo damping oscillation muzvikamu zvakajairika yakanyanya kuderedzwa muP / M zvikamu, izvo zvakakosha zvikuru kumashandisi emuchina, mhepo yekuisa mhepo inopomha uye pneumatic maturusi. Yakakwira porosity inodawo kune ekuzvishambadza magiya.

Dambudziko mukugadzira

Kunyangwe hazvo chimwe chezvinangwa zvekuenderera mberi kweP / M indasitiri kuri kubvisa machining, uye chimwe chezvinhu zvinokwezva zveP / M maitiro ndezvekuti idiki chete yekugadzirisa inodiwa, zvikamu zvakawanda zvichiri kuda post-kurapwa kuti vawane. yepamusoro kurongeka kana zvirinani pamusoro pekupedzisira. Nehurombo, kugaya zvikamu izvi kwakanyanya kuomarara. Mazhinji ematambudziko akasangana nawo anokonzerwa ne porosity. Porosity inotungamira kukuneta kudiki kwemupendero wekucheka. Mucheto wekucheka unogara uchicheka mukati nekunze. Inopfuura pakati pezvimedu nemakomba. Kudzokororwazve kukanganiswa kudiki kunotungamira kumatombo madiki pamucheto wekucheka.

Uku kuneta kutsemuka kukura kusvikira iyo yekucheka muganho yadonha. Rudzi urwu rwe micro chipping Edge runowanzo kuve diki kwazvo, uye kazhinji runoratidza zvakajairika hasha kupfeka.
Kufarira kunodzorawo kudziya kwekupisa kweP / M zvikamu, izvo zvinokonzeresa kupisa kwakanyanya pamucheto wekucheka uye kunokonzeresa kupfeka kwe crater uye deformation. Iyo yemukati yakabatana porous chimiro inopa nzira yekubuda kweyekucheka fluid kubva munzvimbo yekucheka. Izvi zvinogona kukonzera kupisa kunopisa kana kushanduka, kunyanya mukuchera.

Iko kuwedzera kwenzvimbo yepamusoro kunokonzerwa neyakaumbwa mukati porous chimiro zvakare kunotungamira kune oxidation uye / kana carbonization panguva yekupisa kurapwa. Sezvambotaurwa, idzi oxide uye carbides zvakaoma uye zvinopfeka zvinodzivirira.

Iyo porous chimiro inopawo kutadza kwechikamu kuomarara kuverenga, izvo zvakakosha zvakanyanya. Kana macro kuomarara kweP / M chikamu ichiyerwa nemaune, inosanganisira icho chinhu chegomba kuomarara. Iyo porous chimiro inotungamira mukudonha kwechimiro uye inopa isiriyo pfungwa yezvikamu zvakapfava. Izvo zvikamu zvakanyanya kuomarara. Sezvatsanangurwa pamusoro, mutsauko unoshamisa.

Kuvapo kweiyo inclusions muzvikamu zveMDC zvakare kune kusagadzikana. Panguva yekugadzira, zvimedu izvi zvinotorwa kubva kumusoro, uye kukwenya kana kukwenya kunogadzirwa pamusoro pechikamu pachakwizwa pamberi pechishandiso. Aya inclusions anowanzo kuve makuru, achisiya maburi anooneka pamusoro pechikamu.

Musiyano weakabhoni zvemukati unotungamira mukusaenderana kwemachinability. Semuenzaniso, iyo kabhoni yezvinhu fc0208 alloy masosi kubva pa0.6% kusvika 0.9%. Batch yezvinhu ine 0.9% kabhoni zvemukati zvakaomarara, zvichikonzera mune yakashata turu hupenyu. Iyo imwe batch yezvinhu ine 0.6% kabhoni zvemukati ine yakanakisa turu hupenyu. Maalloys ese ari maviri ari mukati meinobvumidzwa renji.

Dambudziko rekupedzisira rekugadzirisa rakabatana nemhando yekucheka kunoitika pane iyo P / M chikamu. Sezvo chikamu chiri padyo nechimiro chekupedzisira, kudzika kwekucheka kazhinji kunodzika zvakanyanya. Izvi zvinoda yemahara yekucheka mupendero. Chip kuvaka-kumusoro pamucheto wekucheka kazhinji kunotungamira kune micro chipping.

Processing technology

Kukunda matambudziko aya, matekinoroji akati wandei (akasiyana neindasitiri) anoshandiswa. Iyo yepamusoro porous chimiro inowanzo simbiswa nekupinda. Kuwedzera kwekucheka kwemahara kunowanzodiwa. Munguva pfupi yapfuura, hunyanzvi hwekugadzira hupfu hwakagadzirirwa kuwedzera kuchena kweupfu uye kudzikisa maokisidi uye macarbide panguva yekurapa kupisa kwashandiswa

Iyo yakavharwa yepamusoro porous chimiro inoitwa nesimbi (kazhinji mhangura) kana polymer kupinda. Izvo zvave zvichimbofungidzirwa kuti kupinda kunoshanda semafuta. Mazhinji eiyo data rekuyedza anoratidza kuti iko chaiko mukana kurara nekuvhara iyo yepamusoro porous chimiro uye nekudaro kudzivirira iyo micro kuneta kweanocheka makona. Iko kuderedzwa kwekutaura kunovandudza chishandiso hupenyu uye kumeso kupera. Iko kushandiswa kunoshamisa kwekupinda mukati kunoratidza kuwedzera kwe200% muhupenyu hwechishandiso kana iyo porous chimiro yakavharwa.

Wedzerai zvakadai seMNS, s, MoS2, MgSiO3 uye BN zvinozivikanwa kuwedzera hupenyu hwechishandiso. Izvi zvinowedzera zvinogonesa machinability nekuita kuti zvive nyore kuti machipisi apatsanuke kubva kune yekushandira, kutyora machipisi, kudzivirira chip kuvaka-kumusoro uye kuzodza iwo unocheka. Kuwedzera huwandu hwezvinowedzera zvinogona kugadzirisa machinability, asi kudzikisira kusimba uye kuomarara.

Powder atomization tekinoroji yekudzora sintering uye kupisa kupisa choto gasi inoita kuti zvikwanise kuburitsa yakachena poda uye zvikamu, izvo zvinoderedza kuitika kwe inclusions uye pamusoro oxide carbides.

Chishandiso zvinhu

Zvishandiso zvinonyanya kushandiswa muP / M indasitiri ndezve izvo zvinhu izvo zvinopfeka zvinodzivirira, pamupendero kutsemuka nemuchina wakasununguka pasi pemamiriro ezvinhu epamusoro pekupedzisa. Aya maitiro anobatsira kune chero mashini mashini mashandiro, kunyanya eP / M zvikamu. Izvo zvishandiso zvemidziyo zvinosanganisirwa muchikamu ichi macubic boron nitride (CBN) maturusi, asina kuvharwa uye akafukidzwa ma cermets, uye akavandudzwa akavharwa sintered cemented carbides.

Maturusi eCBN anokwezva nekuda kwekuoma kwavo kwakanyanya uye vanopfeka kuramba. Ichi chishandiso chakashandiswa kwemakore mazhinji mukugadziriswa kwesimbi uye simbi yakakandwa neRockwell kuomarara kwe45 uye pamusoro. Zvisinei, nekuda kwezvinhu zvakasarudzika zveP / M alloy uye musiyano wakakura pakati peiyo microhardness uye macrohardness, maturusi eCBN anogona kushandiswa kweP / M zvikamu zvine Rockwell kuomarara kwe25. Iyo yakakosha paramende kuomarara kwezvimedu. Kana kuomarara kwezvimedu kuchidarika Rockwell 50 madhigirii, maturusi eCBN anowanikwa zvisinei nehukuru hwekukura. Kukamurwa kuri pachena kwemidziyo iyi kushayikwa kwavo kuomarara. Muchiitiko chekucheka kwepakati kana kukwirira kwepamusoro, kusimbiswa kwemupendero kusanganisira kwakashata kusvetuka uye kukudza kunorema kunokosha. Nyore kujekesa kucheka kunogona kuitwa nehoned yekucheka kumucheto.

Kune zvinhu zvinoverengeka zveCBN zvinoshanda. Izvo zvinhu zvine kuomesa kwakanyanya kunonyanya kuverengerwa iyo yese CBN. Ivo vane hwakaomarara kuomarara, saka ivo vanokwanisa kushandiswa kukwirisa. Kukanganisa kwavo kunowanzoenderana nekumusoro kwekupedzisira. Iyo inonyanya kugadziriswa neayo ega CBN maumbirwo anoumba chishandiso. Kana zvidimbu zvikawa kubva pamucheto wekucheka, zvinokanganisa pamusoro peiyo workpiece zvinhu. Nekudaro, haina kunyanyisa kuita kuti iyo toni yakanaka turu inowira padonhwe rimwe.

Iyo CBN zvinhu zvinowanzo shandiswa zvine zvakakwirira zvemukati zveCBN uye yepakati particle saizi. CBN yekupedzisa blade zviyo zvakanaka, uye zvemukati zveCBN zvakaderera. Izvo zvinonyanya kushanda kana kucheka kwechiedza uye kupedzisa kwepamusoro kuchidikanwa kana kana chiwanikwa chiri kugadziriswa chakanyanya kuomarara.

Mune akawanda ekucheka kunyorera, chishandiso hupenyu hwakazvimiririra kubva kune mhando mhando. Mune mamwe mazwi, chero chinhu cheCBN chinogona kuwana hwakafanana hupenyu hupenyu. Mune zviitiko izvi, kusarudzwa kwezvinhu kwakanyanya kunobva pamutengo wakaderera pane yega yega yekucheka. Rimwe banga rinotenderera rine yakazara CBN yepamusoro pevhu uye inogona kupa mana kana anopfuura ekucheka mativi, ayo anodhura kupfuura mana akavezwa CBN mashizha.

Kana kuomarara kweP / M zvikamu kwadzikira kupfuura Rockwell 35 degree, uye kuomarara kwezvimedu kuri mukati mehurefu, cermet inowanzo kuve imwe yesarudzo. Makemeteti akaomarara kwazvo, anogona kudzivirira chip kuvaka-uye anogona kumira nekukurumidza. Uye zvakare, nekuti cermets agara achishandiswa kumhanya-mhanya uye kupedzisa machina esimbi nesimbi isina tsvina, anowanzove ane akakodzera geometric grooves akakodzera padyo padhuze zvikamu zvakaumbwa.

Ma cermets anhasi akaomarara mukugadzirwa kwesimbi, iine anosvika gumi nemana ekuchinjisa zvinhu. Ivo anowanzo sintered kubva kuTiCN zvidimbu uye Ni Mo inonamira. TiCN inopa kuomarara, chip kuvaka-kumusoro kuramba uye kugadzikana kwemakemikari akakosha kuti ubudirire kushandisa cermets. Uye zvakare, zvishandiso izvi zvinowanzo kuve neyemukati yakanamatira zvemukati, zvinoreva kuti vane kusimba kwakanaka. Mune rimwe shoko, ivo vane zvese hunhu hwekugadzirisa P / M alloy zvinobudirira. Mhando dzinoverengeka dzem cermets dzinoshanda, senge tungsten carbide sintered cemented carbide, iyo yakakwira zvirimo zve binder, zvirinani kuomarara.

Iyo inozivikanwa inozivikanwa nyowani budiriro ndeyekuti yepakati tembiricha kemikari vapor deposition (mtcvd) zvakare inopa mukana kune iyo P / M indasitiri. Mtcvd inochengeta ese ekupfeka kuramba uye crater kusakara kuramba kwechinyakare chemakemikari mhute deposition (CVD), asi zvakare inovandudza kuomarara zvine chinangwa. Iko kuwedzera kwekuoma kunonyanya kubva pakuderera kwekutsemuka. Iko kupfeka kunoiswa pakakwirira tembiricha uye ndokutonhora muvira. Iko kupfeka kune kutsemuka kana chishandiso chasvika tembiricha yemukamuri nekuda kwekusaenderana kwekupisa kwekuwedzera. Zvakafanana nekukwaya pagirazi rakatsetseka, mitswe iyi inoderedza simba remucheka wekucheka. Iyo yepasi deposition tembiricha ye mtcvd inotungamira kune yakaderera kutsemuka frequency uye zvirinani kuomarara kwekucheka kumucheto.

Kana iyo substrate yeCVD kupfeka uye mtcvd yekupfeka iine maitiro akafanana uye kumucheto kupfeka, mutsauko wekuoma kwavo kunogona kuratidzwa. Kana ichishandiswa muzvikumbiro panodiwa kuomarara kwekupinza, mashandiro emutcvd kupfeka ari nani pane eCVD yekupfeka. Kuburikidza nekuongorora, kana uchicheka P / M zvikamu zvine porous mamiriro, iyo kumucheto kuomarara kwakakosha. Kupfeka Mtcvd kuri nani pane CVD kupfeka.

Iyo yemuviri mhute deposition (PVD) yekupfeka yakatetepa uye ishoma kupfeka inodzivirira kupfuura mtcvd kana CVD kupfeka. Nekudaro, PVD kupfeka inogona kumira yakakosha mhedzisiro mukushandisa. PVD kupfeka inoshanda kana kucheka kuri kupfeka kupfeka, CBN uye cermets zvakanyanyisa brittle uye zvinoda yakanakisa pamusoro pekupedzisa.

Semuenzaniso, iyo yekucheka pamucheto weC-2 yakaomeswa carbide inogona kugadzirwa fc0205 pamutsetse kumhanya kwe180 m / min uye chiyero chekudya che0.15 mm / chimurenga. Mushure mekugadzira zvikamu makumi maviri, iyo chip kuvaka-kumusoro inogona kukonzeresa kudonha. Kana PVD titanium nitride (TIN) kupfeka kuchishandiswa, chip kuvaka-up inodzorwa uye hupenyu hwechishandiso hwakareba. Kana tini yekunamatira ichishandiswa pakuyedza uku, iyo inopwanya yekupfeka hunhu hweP / M zvikamu zvinotarisirwa kuve zvinoshanda neTiCN yekupfeka. TiCN ine ingangoita yakafanana chip inovaka-kumusoro kusagadzikana setini, asi iri yakaoma uye inopfeka isingagone kupfuura tini.

Chimiro chekumira chakakosha uye chinokanganisa kugona kweiyo fc0208 alloy. Kana iyo porous chimiro uye hunhu zvachinja, dzakasiyana chishandiso zvinhu zvinopa zvinoenderana zvakanakira. Kana huwandu hwacho hwadzikira (6.4g / cm3), iyo macrohardness iri pasi. Mune ino kesi, mtcvd yakavharwa simende carbide inopa yakanakisa chishandiso hupenyu. Iyo micro kuneta kwekucheka kumucheto kwakakosha kwazvo, uye kumucheto kuomarara kwakakosha kwazvo. Mune ino kesi, yakanaka kuomarara cermet blade inopa iyo yekupedzisira mudziyo chishandiso.

Paunenge uchigadzira iyo imwechete alloy ine huwandu hwe6.8g / cm3, kupfeka kwehasha kunova kwakanyanya kukosha kupfuura kumucheto kutsemuka. Mune ino kesi, mtcvd kupfeka inopa yakanakisa chishandiso hupenyu. PVD yakafukidzwa yakaiswa cemented carbide inoshandiswa kuyedza mhando mbiri idzi dzakaomarara zvikamu, uye inotsemuka painobata yekucheka.

Kana kumhanyisa kuchikwira (kumhanyisa kwemitsara kunopfuura mamirimita mazana matatu paminiti), macermet uye kunyange akavharirwa macermet anogadzira crater wear. Coated cemented carbide inonyanya kukodzera, kunyanya kana kucheka kumucheto kuomarara kweakavezwa simende carbide yakanaka. Kufukidza Mtcvd kunonyanya kushanda kune cemented carbide ine cobalt yakapfuma nzvimbo.

Makemeteti anowanzo shandiswa mukutendeuka uye kufinha. PVD yakafukidzwa yakaomeswa carbides yakakosha pamashini machining nekuti kumhanya kwakaderera uye kutarisisa kwekuvaka-kunogona kutarisirwa.

Ndokumbirawo uchengete kwainobva nekero yechinyorwa chino kuti iprote zvakare:Kucheka Machining Of Powder Metallurgy (P / M) Zvikamu  

Minghe Kukanda Kambani yakatsaurirwa kugadzira uye kupa mhando uye yakakwira mashandiro Ekukanda Zvikamu (simbi kufa zvikamu zvekukanda zvinonyanya kusanganisira Mutete-Wall Yakakanda Kukanda,Hot Chamber Die Kukanda,Cold Chamber Die Kukanda), Round Sevhisi (Die Kukanda Service,Cnc machine,Kugadzira Mould, Surface Kurapa) .Chero tsika yeAluminium kufa kukanda, magnesium kana Zamak / zinc kufa kukanda uye zvimwe zvinodiwa zvekukanda zvinogamuchirwa kuti utibate.

Pasi pekutonga kwe ISO9001 uye TS 16949, Maitiro ese anoitwa kuburikidza nemazana epamberi kufa michina yekukanda, mishina-axis michina, uye zvimwe zvivakwa, zvinobva kumablasters kusvika ku Ultra Sonic yekuwachisa michina. timu yevainjiniya vane ruzivo, vashandisi uye vaongorori kuti zvigadzirwa zvemutengi zviitike.

Chibvumirano chinogadzira kufa kwekufa. Unyanzvi hunosanganisira inotonhorera kamuri aluminium kufa kukanda zvikamu kubva pa0.15 lbs. kusvika ku6 lbs., kukurumidza shanduko kumisikidzwa, uye machining. Kukosha-kwakawedzerwa masevhisi anosanganisira kukwiza, kudedera, kuita deburring, kupfura kupfura, kupenda, kupenda, kupfeka, kuungana, uye kushandisa. Zvishandiso zvakashanda pamwe zvinosanganisira alloys senge 360, 380, 383, uye 413.

Zinc kufa kukanda dhizaini rubatsiro / panguva imwe chete mabasa einjiniya. Tsika inogadzira chaiyo zinc kufa castings. Miniature castings, yakanyanya kumanikidza kufa castings, yakawanda-slide muforoma castings, yakajairwa muforoma castings, yuniti kufa uye yakazvimirira kufa castings uye mhango yakavharwa castings inogona kugadzirwa. Castings inogona kugadzirwa muhurefu uye hupamhi kusvika makumi maviri nemana mukati. Mu +/- 24 mukati. Shiviriro.  

ISO 9001: 2015 yakasimbiswa inogadzira kufa cast magnesium, Kugona kunosanganisira yakakwira-yekumanikidza magnesium kufa kukanda kusvika 200 ton inopisa kamuri & 3000 toni kamuri inotonhorera, dhizaini dhizaini, kupora, kuumba, kugadzira, poda & pendi yemvura, yakazara QA ine CMM kugona , gungano, kurongedza & kuendesa.

ITAF16949 yakasimbiswa. Kuwedzera Kukanda Sevhisi Sanganisira utsvaga kukanda,jecha kukanda,Gravity Kukanda, Yakarasika Furo Kukanda,Kukanda kweCentrifugal,Vacuum Kukanda,Permanent Mould KukandaUnyanzvi hunosanganisira EDI, rubatsiro rweinjiniya, yakasimba modelling uye yechipiri kugadzirisa.

Kukanda Maindasitiri Zvikamu Nyaya Dzedzidzo dze: Mota, Mabhasikoro, Ndege, Zvimhanzi, Watercraft, Optical zvishandiso, Sensors, Models, Zvigadzirwa zvemagetsi, Mahombekombe, Mawachi, Michina, Injini, Furniture, Zvishongo, Jigs, Telecom, Mheni, Midziyo yekurapa, Mifananidzo yemifananidzo, Marobhoti, Zvivezwa, Zvishandiso zveruzha, Zvekushandisa zvemitambo, Matombo, Matoyi nezvimwe. 

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By Minghe Die Kukanda Mugadziri | Categories: Zvinyorwa Zvinobatsira |zvinhu Tags: Aluminium Casting, Zinc Kukanda, Magnesium Kukanda, Titanium Kukanda, Stainless Simbi Kukanda, Brass Kukanda,Bronze Kukanda,Kukanda Vhidhiyo,History History,Aluminium Die Casting | Comments Off