Kayan aikin PCD an yi shi da tip wuka na lu'u-lu'u na polycrystalline da matrix carbide ta hanyar babban zafin jiki da matsi mai ƙarfi. Ba zai iya ba da cikakken wasa kawai ga fa'idodin babban taurin, haɓakar haɓakar thermal, ƙarancin ƙarancin juzu'i, ƙarancin haɓakar haɓakar thermal, ƙaramin kusanci tare da ƙarfe da waɗanda ba ƙarfe ba, madaidaicin maɗaukaki, babu fa'ida mai fa'ida, isotropic, amma kuma la'akari da babban ƙarfin ƙarfin gami.
Kwanciyar zafi, ƙarfin tasiri da juriya sune manyan alamun aikin PCD. Saboda ana amfani dashi mafi yawa a cikin yanayin zafi mai zafi da yanayin damuwa, kwanciyar hankali na thermal shine abu mafi mahimmanci. Binciken ya nuna cewa kwanciyar hankali na thermal na PCD yana da tasiri mai girma akan juriya da tasirin sa. Bayanan sun nuna cewa lokacin da zafin jiki ya fi 750 ℃, juriya da tasiri na PCD gabaɗaya yana raguwa da 5% -10%.
Halin crystal na PCD yana ƙayyade kaddarorin sa. A cikin microstructure, carbon atoms suna samar da haɗin kai tare da atom ɗin da ke kusa da su guda huɗu, suna samun tsarin tetrahedral, sannan su samar da kristal atomic, wanda ke da ƙarfi mai ƙarfi da ɗauri, da taurin gaske. Babban alamun aikin PCD sune kamar haka: ① taurin zai iya kaiwa 8000 HV, 8-12 sau na carbide; ② thermal watsin ne 700W / mK, 1.5-9 sau, ko da mafi girma fiye da PCBN da jan karfe; ③ juzu'in juzu'i gabaɗaya shine 0.1-0.3, ƙasa da 0.4-1 na carbide, yana rage ƙarfin yankewa; ④ thermal fadada coefficient ne kawai 0.9x10-6-1.18x10-6,1 / 5 na carbide, wanda zai iya rage thermal nakasawa da kuma inganta aiki daidaito; ⑤ da kayan da ba na ƙarfe ba suna da ƙarancin alaƙa don samar da nodules.
Cubic boron nitride yana da ƙarfin juriya na iskar shaka kuma yana iya sarrafa kayan da ke ɗauke da ƙarfe, amma taurin ya yi ƙasa da lu'u-lu'u kristal guda ɗaya, saurin sarrafawa yana jinkirin kuma ƙarancin inganci. Lu'u lu'u lu'u-lu'u guda ɗaya yana da babban taurin, amma taurin bai isa ba. Anisotropy yana sauƙaƙe rabuwa tare (111) saman ƙarƙashin tasirin ƙarfin waje, kuma aikin sarrafawa yana iyakance. PCD wani polymer ne wanda aka haɗa shi ta hanyar ɓangarorin lu'u-lu'u masu girman micron ta wasu hanyoyi. Halin rikice-rikice na tarin ɓarna na ɓarna yana haifar da yanayin isotropic macroscopic, kuma babu wani wuri mai jagora da cleavage a cikin ƙarfin tensile. Idan aka kwatanta da lu'u-lu'u-crystal guda ɗaya, iyakar hatsi na PCD yadda ya kamata yana rage anisotropy kuma yana haɓaka kaddarorin inji.
1. Ka'idodin ƙira na kayan aikin yankan PCD
(1) Zaɓin madaidaicin girman ƙwayar PCD
A ka'ida, PCD ya kamata ya yi ƙoƙarin tsaftace hatsi, kuma rarraba abubuwan da ke tsakanin samfurori ya kamata ya zama daidai kamar yadda zai yiwu don shawo kan anisotropy. Zaɓin girman ƙwayar PCD kuma yana da alaƙa da yanayin sarrafawa. Gabaɗaya magana, ana iya amfani da PCD tare da ƙarfin ƙarfi, ƙaƙƙarfan ƙaƙƙarfan ƙarfi, juriya mai kyau da hatsi mai kyau don ƙarewa ko cikawa sosai, kuma ana iya amfani da PCD na hatsi mara nauyi don sarrafa mashin gaba ɗaya. Girman barbashi na PCD na iya tasiri sosai ga aikin lalacewa na kayan aiki. Littattafan da suka dace sun nuna cewa lokacin da hatsin albarkatun kasa ya yi girma, juriya na lalacewa ya karu a hankali tare da raguwar girman hatsi, amma lokacin da girman hatsi ya yi kadan, wannan doka ba ta aiki.
Gwaje-gwaje masu alaƙa da aka zaɓi foda lu'u-lu'u huɗu tare da matsakaicin matsakaicin nau'in 10um, 5um, 2um da 1um, kuma an kammala cewa: tare da raguwar ②, juriya na lalacewa da juriya na zafi na PCD a hankali ya ragu.
(2) Zaɓin madaidaicin siffar bakin ruwa da kaurin ruwan ruwa
Siffar bakin ruwa ya ƙunshi sifofi huɗu: jujjuyawar gefe, da'irar da'ira, jujjuyawar da'irar da'irar da'irar da'ira da kaifi kwana. Tsarin kusurwa mai kaifi yana sa gefen kaifi, saurin yankan yana da sauri, zai iya rage ƙarfin yankewa da burr, haɓaka ingancin samfurin, ya fi dacewa da ƙarancin silicon aluminum gami da sauran ƙarancin ƙarfi, ƙarancin ƙarfe mara ƙarfe mara nauyi. The obtuse zagaye tsarin iya wuce ruwa bakin, forming R Angle, yadda ya kamata hana ruwa watse, dace da sarrafa matsakaici / high silicon aluminum gami. A wasu lokuta na musamman, kamar zurfin yankan ƙasa da ƙaramar ciyarwar wuƙa, an fi son tsarin zagaye mara kyau. Tsarin gefen da aka juya zai iya ƙara gefuna da sasanninta, tabbatar da ruwa, amma a lokaci guda zai ƙara matsa lamba da kuma yanke juriya, mafi dacewa da nauyin nauyi yankan babban silicon aluminum gami.
Domin sauƙaƙe EDM, yawanci zaɓi ƙaramin takarda na PDC na bakin ciki (0.3-1.0mm), tare da Layer na carbide, jimlar kauri na kayan aiki shine kusan 28mm. Layer na carbide bai kamata ya yi kauri sosai ba don guje wa rarrabuwar kawuna sakamakon bambancin damuwa tsakanin abubuwan haɗin kai
2, PCD kayan aiki masana'antu tsari
Tsarin masana'anta na kayan aikin PCD kai tsaye yana ƙayyade aikin yankewa da rayuwar sabis na kayan aiki, wanda shine mabuɗin aikace-aikacensa da haɓakawa. Ana nuna tsarin kera kayan aikin PCD a hoto na 5.
(1) Samar da PCD composite tablets (PDC)
① Tsarin masana'antu na PDC
PDC gabaɗaya ya ƙunshi na halitta ko na roba lu'u-lu'u foda da wakili mai ɗaure a babban zafin jiki (1000-2000 ℃) da matsa lamba (5-10 ATM). Wakilin dauri ya samar da gadar dauri tare da TiC, Sic, Fe, Co, Ni, da dai sauransu a matsayin manyan abubuwan da aka gyara, kuma lu'u-lu'u lu'u-lu'u an saka shi a cikin kwarangwal na gadar dauri a cikin nau'in haɗin gwiwa. Ana yin PDC gabaɗaya zuwa faifai masu tsayayyen diamita da kauri, da niƙa da gogewa da sauran jiyya na zahiri da sinadarai masu dacewa. A zahiri, madaidaicin nau'in PDC yakamata ya riƙe kyawawan halaye na zahiri na lu'u-lu'u lu'u-lu'u guda ɗaya gwargwadon yuwuwar, sabili da haka, abubuwan ƙari a cikin jikin sintering yakamata su kasance kaɗan kamar yadda zai yiwu, a lokaci guda, haɗin haɗin DD na barbashi gwargwadon yiwuwa.
② Rarraba da zaɓin masu ɗaure
Mai ɗaure shine mafi mahimmancin al'amari da ke shafar kwanciyar hankali na thermal na kayan aikin PCD, wanda ke shafar taurin sa kai tsaye, juriya da kwanciyar hankali na thermal. Hanyoyin haɗin PCD na gama gari sune: ƙarfe, cobalt, nickel da sauran karafa na miƙa mulki. Co da W gauraye foda aka yi amfani da matsayin bonding wakili, da kuma m yi na sintering PCD ya fi kyau a lokacin da kira matsa lamba ne 5.5 GPa, da sintering zafin jiki ne 1450 ℃ da kuma rufi na 4min. SiC, TiC, WC, TiB2, da sauran kayan yumbu. SiC Tsawon yanayin zafi na SiC ya fi na Co, amma taurin da raunin karaya ba su da ɗanɗano. Matsakaicin raguwar girman albarkatun kasa zai iya inganta taurin da taurin PCD. Babu m, tare da graphite ko wasu carbon kafofin a cikin matsananci-high zafin jiki da kuma babban matsa lamba ƙone a cikin nanoscale polymer lu'u-lu'u (NPD). Yin amfani da graphite azaman precursor don shirya NPD shine mafi ƙarancin yanayi, amma NPD na roba yana da mafi girman taurin da mafi kyawun kayan inji.
Zaɓi da sarrafa ③ hatsi
Foda lu'u-lu'u na albarkatun kasa shine mabuɗin mahimmanci wanda ke shafar aikin PCD. Pretreating na lu'u-lu'u micropowder, ƙara ƙaramin adadin abubuwa masu hana haɓakar ƙwayar lu'u-lu'u mara kyau da zaɓi mai ma'ana na abubuwan ƙari na iya hana haɓakar ƙwayoyin lu'u-lu'u mara kyau.
Babban NPD mai tsabta tare da tsari mai daidaituwa zai iya kawar da anisotropy yadda ya kamata kuma ya kara inganta kayan aikin injiniya. The nanographite precursor foda shirya ta high-makamashi ball nika Hanyar da aka yi amfani da daidaita oxygen abun ciki a high zafin jiki pre-sintering, canza graphite zuwa lu'u-lu'u karkashin 18 GPa da 2100-2300 ℃, samar da lamella da granular NPD, da taurin ya karu tare da rage na lamella kauri.
④ Maganin sinadarai na ƙarshe
A daidai wannan zafin jiki (200 ° ℃) da kuma lokaci (20h), da cobalt kau sakamakon Lewis acid-FeCl3 ya fi na ruwa muhimmanci, da mafi kyau duka rabo na HCl shi ne 10-15g / 100ml. Zaman lafiyar zafin jiki na PCD yana haɓaka yayin da zurfin cirewar cobalt ke ƙaruwa. Don PCD mai girma mai girma, maganin acid mai karfi zai iya cire Co gaba daya, amma yana da tasiri mai girma akan aikin polymer; ƙara TiC da WC don canza tsarin polycrystal na roba da kuma haɗuwa tare da maganin acid mai ƙarfi don inganta kwanciyar hankali na PCD. A halin yanzu, tsarin shirye-shiryen kayan aikin PCD yana inganta, ƙarfin samfurin yana da kyau, anisotropy an inganta shi sosai, ya gane samar da kasuwanci, masana'antu masu dangantaka suna tasowa cikin sauri.
(2) Gudanar da ruwan PCD
① yankan tsari
PCD yana da babban taurin, juriya mai kyau da kuma babban tsarin yanke wuya.
② hanyar walda
PDC da jikin wuka ta hanyar matsawa na inji, haɗin gwiwa da brazing. Brazing shine don danna PDC akan matrix na carbide, gami da injin brazing, injin watsa walda, babban mitar induction dumama brazing, waldawar laser, da sauransu. Ingancin walda yana da alaƙa da juzu'i, gami da walda da zafin jiki. Welding zafin jiki (gaba ɗaya ƙasa da 700 ° ℃) yana da mafi girma tasiri, da yawan zafin jiki ne ma high, sauki sa PCD graphitization, ko ma "over-kona", wanda kai tsaye rinjayar waldi sakamako, kuma ma low zafin jiki zai kai ga rashin isa waldi ƙarfi. Za a iya sarrafa zafin walda ta lokacin rufewa da zurfin jajayen PCD.
③ tsarin niƙa ruwa
Tsarin niƙa kayan aikin PCD shine mabuɗin aiwatar da masana'anta. Gabaɗaya, ƙimar kololuwar ruwa da ruwa yana cikin 5um, kuma radius na baka yana cikin 4um; na gaba da baya yankan surface tabbatar da wani surface gama, har ma da rage gaban yankan surface Ra zuwa 0.01 μ m don saduwa da madubi bukatun, sa kwakwalwan kwamfuta gudana tare da gaban wuka surface da kuma hana danko wuka.
Ruwa nika tsari hada lu'u-lu'u nika dabaran inji ruwa nika, Electric walƙiya ruwa nika (EDG), karfe daure super wuya abrasive nika dabaran online electrolytic gama ruwa nika (ELID), hada ruwa nika machining. Daga cikin su, dabaran niƙa na lu'u-lu'u injin niƙa shine mafi girma, wanda aka fi amfani dashi.
Gwajin da ya shafi: ① sprle comple dabaran zai haifar da rushewar ruwa, kuma girman girman nika ya ragu, kuma ingancin ruwa ya zama da kyau; girman barbashi na ② dabaran niƙa yana da alaƙa da alaƙa da ingancin ruwa na kayan aikin lafiya ko kayan aikin PCD na ultrafine, amma yana da iyakanceccen tasiri akan kayan aikin PCD masu ƙarfi.
Bincike mai alaƙa a gida da waje ya fi mayar da hankali kan tsari da tsarin niƙa ruwa. A cikin injin niƙa ruwa, cirewar thermochemical da cirewar injin su ne ke da rinjaye, kuma kawar da gajiyawa kaɗan ne. A lokacin da nika, bisa ga ƙarfi da zafi juriya na daban-daban dauri wakili lu'u-lu'u nika ƙafafun, inganta gudun da kuma lilo mita na nika dabaran har zuwa yiwu, kauce wa brittleness da gajiya kau, inganta rabo na thermochemical kau, da kuma rage surface roughness. A surface roughness na busassun nika ne low, amma sauƙi saboda high aiki zafin jiki, ƙone kayan aiki surface,
Ruwa nika tsari bukatar kula da: ① zabi m ruwa nika tsari sigogi, na iya sa gefen bakin ingancin mafi kyau kwarai, gaba da baya ruwa surface gama mafi girma. Duk da haka, kuma la'akari da high nika karfi, babban hasara, low nika yadda ya dace, high cost; ② Zaɓi ingancin da ke da kyau, gami da nau'in kwalin burodi, girman mukamin kayan aiki, yayin inganta ingancin kayan aiki, yayin inganta ingancin kayan aiki.
Daban-daban dauri lu'u-lu'u nika dabaran da daban-daban halaye, da daban-daban nika inji da sakamako. Guduro mai ɗaure lu'u-lu'u yashi dabaran yashi mai laushi, Niƙa barbashi suna da sauƙin faɗuwa da wuri, Ba tare da juriya na zafi ba, saman yana da sauƙin lalacewa ta wurin zafi, saman niƙa ruwan ruwa yana da saurin sa alamomi, Babban rashin ƙarfi; Metal daure lu'u-lu'u dabaran nika dabaran da aka kiyaye kaifi da nika crushing, Good formability, surfacing, Low surface roughness na ruwa nika, Higher yadda ya dace, Duk da haka, da dauri ikon nika barbashi sa kai kaifafa matalauta, Kuma yankan baki ne mai sauki barin wani tasiri rata, haddasa tsanani gefe lalacewa; Ceramic binder lu'u-lu'u nika dabaran yana da matsakaicin ƙarfi, Kyakkyawan aikin motsa jiki, Ƙarin pores na ciki, Favfor kura kau da zafi mai zafi, Zai iya daidaitawa zuwa nau'ikan sanyaya, ƙarancin zafin jiki, dabaran niƙa ƙasa da sawa, Kyakkyawan siffar riƙewa, daidaiton mafi girman inganci, Duk da haka, jikin lu'u-lu'u niƙa da ɗaure yana kaiwa ga samar da kayan aiki na pits. Yi amfani bisa ga kayan aiki, m nika yadda ya dace, abrasive karko da surface ingancin workpiece.
Binciken kan ingancin niƙa ya fi mayar da hankali kan inganta yawan aiki da sarrafa farashi. Gabaɗaya, ƙimar niƙa Q (cire PCD kowane lokaci naúrar) da lalacewa rabo G (raɗin cire PCD zuwa asarar dabaran niƙa) ana amfani dashi azaman ma'aunin ƙima.
Masanin ilimin Jamus KENTER kayan aikin PCD na niƙa tare da matsa lamba, gwaji: ① yana haɓaka saurin motsi, girman ƙwayar PDC da maida hankali mai sanyaya, ƙimar niƙa da lalacewa ta ragu; ② yana ƙara girman ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar kuma ta ƙara yawan adadin lu'u-lu'u ②, yawan nika da lalacewa rabo; ③ nau'in ɗaure ya bambanta, ƙimar nika da lalacewa ya bambanta. KENTER An yi nazarin tsarin niƙa na kayan aikin PCD bisa tsari, amma ba a tantance tasirin aikin niƙa ba da tsari.
3. Amfani da gazawar kayan aikin yankan PCD
(1) Zaɓin sigogin yankan kayan aiki
A lokacin farkon lokacin kayan aikin PCD, bakin bakin mai kaifi a hankali ya wuce, kuma ingancin saman injin ya zama mafi kyau. Passivation iya yadda ya kamata cire micro rata da kananan burrs kawo ta ruwa nika, inganta surface ingancin yankan baki, da kuma a lokaci guda, samar da wani madauwari gefen radius don matsi da gyara da sarrafa surface, don haka inganta surface ingancin workpiece.
PCD kayan aiki surface milling aluminum gami, yankan gudun ne kullum a 4000m / min, rami aiki ne kullum a 800m / min, aiki na high roba-robo wadanda ba ferrous karfe ya kamata a dauki wani mafi girma juya gudun (300-1000m / min). Ana ba da shawarar ƙarar ciyarwa gabaɗaya tsakanin 0.08-0.15mm/r. Babban girman ciyarwa, ƙara ƙarfin yankewa, ƙara yawan yanki na geometric na farfajiyar aikin; ƙananan ƙarar abinci, ƙara yanke zafi, da ƙara lalacewa. Zurfin yankan yana ƙaruwa, ƙarfin yankan yana ƙaruwa, yankan zafi yana ƙaruwa, rayuwa ta ragu, zurfin yankan da yawa na iya haifar da rushewar ruwa cikin sauƙi; ƙananan zurfin yankan zai haifar da taurin mashin ɗin, lalacewa har ma da rushewar ruwa.
(2) Fom ɗin sawa
Kayan aikin sarrafa kayan aiki, saboda gogayya, zazzabi mai zafi da sauran dalilai, lalacewa babu makawa. Sanyewar kayan aikin lu'u-lu'u ya ƙunshi matakai guda uku: farkon saurin lalacewa (wanda kuma aka sani da yanayin canji), lokacin barga mai lalacewa tare da yawan lalacewa akai-akai, da saurin lalacewa na gaba. Saurin lalacewa yana nuna cewa kayan aiki ba ya aiki kuma yana buƙatar regriding. Siffofin lalacewa na kayan aikin yankan sun haɗa da lalacewa mai ɗaci (ƙarfin walda mai sanyi), lalacewa mai yaduwa, lalacewa mai lalacewa, lalacewa ta iskar oxygen, da sauransu.
Daban-daban da kayan aikin gargajiya, nau'in lalacewa na kayan aikin PCD shine lalacewa mai ɗaurewa, lalacewa da lalacewa da lalata Layer na polycrystalline. Daga cikin su, da lalacewar polycrystal Layer ne babban dalilin, wanda aka bayyana a matsayin da dabara ruwa rugujewa lalacewa ta hanyar waje tasiri ko asarar m a PDC, forming wani rata, wanda nasa ne na jiki na inji lalacewa, wanda zai iya kai ga rage na aiki daidaici da guntu na workpieces. Girman barbashi na PCD, nau'in ruwa, kusurwar ruwa, kayan aiki da sigogin sarrafawa zasu shafi ƙarfin ruwan ruwa da yanke ƙarfi, sannan haifar da lalacewar Layer na polycrystal. A cikin aikin injiniya, ya kamata a zaɓi madaidaicin girman barbashi na albarkatun ƙasa, sigogin kayan aiki da sigogin sarrafawa bisa ga yanayin sarrafawa.
4. Ci gaban haɓaka kayan aikin yankan PCD
A halin yanzu, an fadada kewayon aikace-aikacen kayan aikin PCD daga juyawa na gargajiya zuwa hakowa, niƙa, yanke mai sauri, kuma an yi amfani da shi sosai a gida da waje. Saurin haɓakar motocin lantarki ba wai kawai ya haifar da tasiri ga masana'antar kera motoci na gargajiya ba, har ma ya kawo ƙalubale da ba a taɓa gani ba ga masana'antar kayan aiki, yana mai kira ga masana'antar kayan aiki don haɓaka haɓakawa da haɓakawa.
Faɗin aikace-aikacen kayan aikin yankan PCD ya zurfafa da haɓaka bincike da haɓaka kayan aikin yankan. Tare da zurfafa bincike, ƙayyadaddun PDC suna samun ƙarami da ƙarami, haɓaka ingancin haɓakar hatsi, daidaituwar aiki, ƙimar niƙa da ƙimar lalacewa ya fi girma kuma mafi girma, fasali da haɓaka tsarin. Umarnin bincike na kayan aikin PCD sun haɗa da: ① bincike da haɓaka ƙirar PCD na bakin ciki; ② bincike da haɓaka sabbin kayan aikin PCD; ③ bincike don mafi kyawun kayan aikin walda na PCD da ƙara rage farashi; ④ bincike inganta PCD kayan aikin ruwa nika tsari don inganta yadda ya dace; ⑤ bincike yana inganta sigogi na kayan aiki na PCD kuma yana amfani da kayan aiki bisa ga yanayin gida; ⑥ bincike a hankali ya zaɓi yanke sigogi bisa ga kayan da aka sarrafa.
taƙaitaccen taƙaitaccen bayani
(1) PCD kayan aikin yankan aikin, gyara don ƙarancin kayan aikin carbide da yawa; a lokaci guda, farashin yana da ƙasa da ƙasa da kayan aikin lu'u-lu'u guda ɗaya, a cikin yankan zamani, kayan aiki ne mai ban sha'awa;
(2) Dangane da nau'in da aikin kayan da aka sarrafa, zaɓi mai ma'ana na girman barbashi da sigogin kayan aikin PCD, wanda shine jigo na masana'anta da amfani da kayan aiki,
(3) PCD abu yana da babban taurin, wanda shine manufa kayan yankan wuka County, amma kuma yana kawo wahalar yankan kayan aiki. Lokacin masana'anta, don yin la'akari da wahalar aiwatarwa da buƙatun sarrafawa, don cimma mafi kyawun aikin farashi;
(4) PCD kayan aiki a cikin wuka County, ya kamata mu zaži da hankali yankan sigogi, bisa ga saduwa da samfurin yi, kamar yadda ya zuwa yanzu iya tsawaita rayuwar sabis na kayan aiki domin cimma ma'auni na kayan aiki rayuwa, samar da inganci da samfurin ingancin;
(5) Bincike da haɓaka sabbin kayan aikin PCD don shawo kan illolinsa na asali
An samo wannan labarin daga "superhard abu cibiyar sadarwa"
Lokacin aikawa: Maris 25-2025
