Kuna so ku mallaki samar da ultrafine karfe foda? Duba nan.

A cikin ci gaban masana'antu na yau, ƙwararrun ƙorafe masu kyau sun zama ainihin kayan masana'antu masu fasaha masu yawa. Aikace-aikacen su suna da yawa kuma suna da mahimmanci, kama daga bugu na 3D na ƙarfe (ƙarin masana'anta) da kuma rufin shinge na thermal don injunan sararin samaniya zuwa manna azurfa don abubuwan lantarki da foda na alloy na titanium don ƙirar likitanci. Duk da haka, samar da high quality-, low-oxygen, spherical ultra-lafiya karfe foda ne mai matukar kalubale fasaha matsala. Daga cikin fasahohin samar da foda daban-daban, atomization na ruwa mai zafin jiki na ƙarfe yana samun ƙarin hankali saboda fa'idodinsa na musamman. Amma yana da gaske a matsayin "mai kyau" kamar yadda jita-jita? Wannan labarin yana zurfafa cikin ƙa'idodinsa, fa'idodi, ƙalubalensa, da aikace-aikace don nemo amsar.

1. Ultra-Fine Metal Powder: The "Invisible Cornerstone" na masana'antu na zamani

Kafin yin nazarin kayan aiki, yana da mahimmanci a fahimci dalilin da yasa foda mai kyau na ƙarfe ke da mahimmanci.

(1) Ma'ana da Ma'auni:

Yawanci, karfe powders tare da barbashi masu girma dabam tsakanin 1 micron da 100 microns ana daukar lafiya powders, yayin da wadanda tare da barbashi masu girma dabam kasa 20 microns (har zuwa sub-micron matakin) ana kiransa "ultra-lafiya" ko "micro-lafiya" powders. Wadannan foda sun mallaki wani yanki na musamman na musamman, wanda ke haifar da tasirin ƙasa, ƙananan tasirin, da tasirin ƙididdiga waɗanda ba a samo su a cikin kayan girma ba.

(2) Manyan Filayen Aikace-aikacen:

Ƙirƙirar Ƙarfafawa (Buga 3D): Wannan shine mafi girman ɓangaren buƙatun foda na ƙarfe mai kyau. Lasers ko igiyoyin lantarki bi da bi suna narke yadudduka na foda don kera sassan da hadadden geometries don sararin samaniya, likitanci (misali, haɗin gwiwar hip, rawanin hakori), da masana'antar ƙira. The foda ta flowability, barbashi size rarraba, da sphericity kai tsaye ƙayyade da buga part ta daidaito da kuma yi.

Ƙarfe Injection Molding (MIM): Ƙarfe mai ƙaƙƙarfan ƙaƙƙarfan foda ana haɗe shi da abin ɗaure kuma a yi masa allura a cikin wani tsari don samar da siffa. Wannan "bangaren kore" yana jujjuyawa da daidaitawa don samar da ƙarami mai girma, madaidaici, ƙanƙantar ƙanana, kamar trays SIM na waya, abubuwan kunna wuta, da karar agogo.

Thermal Spray Technology: Ana ciyar da foda a cikin harshen wuta mai zafi ko rafin plasma, narke, sannan a fesa shi da sauri sama da ƙasa don samar da abin rufe fuska mai jure lalacewa, juriya, da oxidation-resistant. Ana amfani da shi sosai a cikin injin injin, bututun mai, da sauransu.

Sauran Filaye: Har ila yau, sun haɗa da man shafawa don masana'antar lantarki, masu haɓaka masana'antar sinadarai, da kayan kuzari don sashin tsaro.

Wadannan high-karshen aikace-aikace gabatar musamman stringent bukatun a karfe foda ta size size, sphericity, oxygen abun ciki, flowability, da kuma bayyana yawa.

2. Daban-daban na Fasahar Samar da Foda: Me yasa Atomization Ruwa Ya Fita?

Ana iya raba manyan fasahohin samar da foda na karfe zuwa hanyoyin jiki (misali, atomization), hanyoyin sinadarai (misali, ajiyar tururi, raguwa), da hanyoyin injina (misali, milling). Daga cikin su, atomization ita ce hanyar da aka fi amfani da ita saboda yawan yadda ake samar da shi, farashi mai sauƙin sarrafawa, da dacewa don samar da sikelin masana'antu.

Atomization an ƙara zuwa kashi na gas atomization da ruwa atomization bisa matsakaicin amfani.

Gas Atomization: Yana amfani da iskar gas mara ƙarfi mai ƙarfi (misali, argon, nitrogen) don yin tasiri ga rafi na narkakkar ƙarfe, karya shi zuwa ɗigo mai kyau waɗanda ke daɗa zama foda. Abũbuwan amfãni sun haɗa da babban foda sphericity da kuma kyakkyawan kula da abun ciki na oxygen. Lalacewar kayan aiki ne masu rikitarwa, tsadar iskar gas, yawan amfani da makamashi, da ƙarancin yawan amfanin ƙasa don foda mai kyau.

Ruwan Atomization: Yana amfani da jiragen ruwa masu matsa lamba a matsayin matsakaicin karya. Atomization na ruwa na al'ada, saboda saurin sanyinsa, yana samar da mafi yawan foda (flaky ko kusa-spherical) tare da babban abun ciki na iskar oxygen, galibi ana amfani da su a filayen da siffar ba ta da mahimmanci, kamar ƙarfe da kayan walda.

Fasahar atomization na ruwan ƙarfe mai zafin jiki wata babbar ƙirƙira ce da ta dogara da atomization na ruwa na gargajiya, da wayo tare da haɗa babban inganci na atomization na ruwa tare da ingancin iskar gas.

3. Demysting thearfin ruwa mai tsayi-zazzabi na injin samar da kayan aikin samar da foda: Yaya yake aiki?

Babban aikin babban zafin ruwa mai zafi atomizer's core design falsafar shine: atomize ɗigon ƙarfe da kyau sosai kuma ya bar su su kasance masu kama da juna kafin su tuntuɓar ruwan.

Za a iya taƙaita ayyukanta a cikin waɗannan mahimman matakai:

(1) Narkewa da zafi: An narkar da albarkatun ƙarfe ko gami a cikin tanderun shigar da ke tsaka-tsaki a ƙarƙashin injina ko yanayi mai karewa da zafi zuwa zafin jiki mai nisa sama da inda suke narkewa (jihar "mafi zafi", yawanci 200-400°C mafi girma). Babban zafin jiki yana rage dankowar karfe da tashin hankali, wanda shine babban abin da ake bukata don samuwar foda mai kyau da mai siffar zobe.

(2) Jagora da Tsagewar Zuba: Narkakken ƙarfe yana samar da tsayayyen rafi ta cikin bututun jagora na ƙasa. Kwanciyar hankali na wannan rafi yana da mahimmanci don rarraba girman ƙwayar foda iri ɗaya.

(3) Ƙarƙashin Ƙarƙashin Matsi: Wannan shi ne ainihin fasahar. Rafin karfe yana tasiri daidai a bututun atomization ta wasu manyan matsananciyar matsa lamba (har zuwa 100 MPa ko fiye) jiragen ruwa daga kusurwoyi daban-daban. Matsakaicin matsanancin matsa lamba na ruwa yana ba jiragen ruwa ƙarfin motsa jiki mai ƙarfi, masu iya 粉碎 (fensui: murkushe) ƙarancin danko, ƙarancin zafi mai zafi na ƙarfe rafi zuwa cikin ɗigon ruwa mai kyau.

(4) Jirgin sama da Spheroidization: The murkushe ƙananan ƙananan ɗigon ƙarfe suna da isasshen lokaci yayin jirgin su zuwa kasan hasumiya ta atomization don yin kwangila cikin cikakkun wurare a ƙarƙashin aikin tashin hankali. Kayan aikin yana haifar da mafi kyawun yanayi don spheroidization droplet ta daidai sarrafa yanayin da ke cikin hasumiya atomization (yawanci cike da iskar gas mai kariya kamar nitrogen) da kuma nisan tashi.

(5) Ƙarfafawa da Tari cikin sauri: ɗigon ruwa mai sassauƙa yana ƙarfi da sauri bayan faɗowa cikin tankin mai sanyaya ruwa a ƙasa, yana samar da tsayayyen foda. Hanyoyin da suka biyo baya kamar dewatering, bushewa, nunawa, da haɗawa suna samar da samfur na ƙarshe.

4. "Amfani" na Ƙarƙashin Ƙarƙashin Ƙarƙashin Ruwa: Cikakken Bincike na Amfani

Ana la'akari da "mai kyau" saboda yana magance maki masu zafi a cikin samar da foda mai kyau:

1. Mustti sosai-da yawan amfanin ƙasa mai kyau: wannan shine mafi girman fa'ida. Haɗuwa da matsananciyar matsananciyar ruwa da fasahar ɗumama ƙarfe na ƙarfe yana ƙaruwa da ƙara yawan amfanin ƙasa na foda masu kyau a cikin kewayon 15-25μm zuwa sau da yawa na atomization na gas na gargajiya, yana rage ƙimar samar da naúrar.

2. Excellent Foda Sphericity: Superheating rage narkakkar da karfe ta surface tashin hankali, da kuma gyara atomization tafiyar matakai haifar da foda sphericity sosai kusa da na gas-atomized foda, cikakken saduwa da bukatun ga 3D bugu da kuma MIM.

3. Dangantakar Ƙananan Ƙunƙarar Oxygen: Ko da yake yin amfani da ruwa a matsayin matsakaici yana gabatar da hadarin iskar oxygen, matakan kamar ingantaccen ƙirar bututun ƙarfe, cika ɗakin atomization tare da iskar gas mai karewa, da kuma ƙara masu dacewa da antioxidants na iya sarrafa abun ciki na oxygen da kyau a ƙananan matakan (don da yawa gami, ƙasa da 500 ppm), saduwa da mafi yawan bukatun aikace-aikacen.

4. Muhimman Fa'idodin Samar da Kuɗi: Idan aka kwatanta da atomization gas ta amfani da iskar gas mai tsada, tsadar ruwa kusan ba ta da kyau. Zuba hannun jarin kayan aiki da amfani da makamashi suma sun kasance ƙasa da na kayan aikin sarrafa iskar gas na daidaitaccen fitarwa, yana ba da yuwuwar tattalin arziki don samar da manyan masana'antu.

5. Broad Material Adaptability: Dace da samar da foda daga tushen ƙarfe, tushen nickel, cobalt-based alloys zuwa jan ƙarfe, aluminum gami, tin alloys, da dai sauransu, yana nuna ƙarfin ƙarfi.

5. Inuwa Karkashin Haske: Da Haƙiƙa Yana Kallon Kalubale da Iyakarsa

Babu fasahar da ta dace; Atomization na ruwa mai tsananin zafi yana da iyakoki da wahala don shawo kan su:

1. Don Ƙarfe Masu Ƙarfafawa: Don ƙananan ƙarfe masu aiki kamar titanium alloys, tantalum, da niobium, waɗanda suke da matukar damuwa ga oxidation, haɗarin oxidation daga matsakaicin ruwa ya kasance mai girma, yana sa ya yi wuya a samar da foda tare da ƙarancin oxygen abun ciki (misali, <200 ppm). Waɗannan kayan a halin yanzu yanki ne na fasaha kamar inert gas atomization ko plasma rotating electrode process (PREP).

2. Al'amarin "Satellite": A lokacin atomization, wasu sun riga sun ƙarfafa ko ƙananan ƙananan foda na iya yin tasiri ga manyan ɗigon ruwa kuma su manne da su, suna samar da "kwallan tauraron dan adam," wanda zai iya rinjayar foda da kuma yadawa. Yana buƙatar rage girman ta hanyar inganta sigogin tsari.

3. Complexity of Process Control: Stabilably samar da high quality foda bukatar daidai 协同 (xietong: 协同 daidaitawa) iko da dama sigogi kamar karfe superheat zafin jiki, ruwa matsa lamba, ruwa kwarara kudi, nozzle tsarin, da kuma yanayi kula, wakiltar wani babban fasaha shãmaki.

4. Sake yin amfani da ruwa da jiyya: Yawan samarwa yana buƙatar ingantattun tsarin sanyaya ruwa na sake zagayowar ruwa da tsarin kula da ruwan sha, yana ƙara rikitarwa ga wuraren taimako.

6. Kammalawa: Shin Da gaske Yana Da Kyau?

Amsar ita ce: A fagen gwaninta, i, hakika yana da “kyau”.

The high-zazzabi karfe ruwa atomization foda samar inji ba nufin maye gurbin duk sauran foda samar fasahar. Madadin haka, yana aiki azaman mafita na fasaha wanda ke samun ingantacciyar ma'auni tsakanin inganci mai inganci, ƙarancin farashi, da inganci mai inganci, yana cika buƙatun kasuwar haɓakar buƙatun ƙarfe na ƙarfe mai kyau.

Idan babban burin ku shine samar da ƙoshin ƙoshin lafiya daga kayan kamar bakin karfe, ƙarfe kayan aiki, gami da zafin jiki mai zafi, gami da cobalt-chromium, gami da jan ƙarfe, don aikace-aikace a cikin bugu na 3D, MIM, spraying thermal, da dai sauransu, kuma kuna da manyan buƙatu don sarrafa farashi, to, fasahar atomization na ruwa mai zafi yana da kyau kuma babu shakka zaɓi ne mai ban sha'awa. Yana sa samar da foda na ƙarfe "mastering" ya fi dacewa.

Koyaya, idan samfuran ku na titanium gami ne ko wasu foda na ƙarfe masu aiki waɗanda ke buƙatar matuƙar sarrafa abun ciki na oxygen don aikace-aikacen sararin sama na sama, kuna iya buƙatar yin la'akari da wasu zaɓuɓɓuka kamar mafi tsadar iskar gas atomization ko fasahar atomization na plasma.

A taƙaice, na'urar samar da ruwan atomization na ruwa mai zafi mai zafi shine babban nasara wajen haɓaka fasahar ƙarfe na foda na zamani. Yana amfani da ingantaccen tunani don warware al'adun gargajiya 矛盾 (maodun: sabani) tsakanin inganci da farashi, zama wani injin mai ƙarfi wanda ke haifar da haɓaka masana'anta na ƙarshe. Lokacin zabar, cikakken fahimtar kayan aikin ku, buƙatun samfur, da fa'ida da rashin amfani da fasaha shine mabuɗin yin yanke shawara mafi hikima da gaske "ƙware" ƙwararrun ƙoshin ƙarfe mai kyau.