Powder Metallurgy Steel stainless
Eyona ndlela iphambili yokusetyenzwa kwemetalurgy yomgubo wentsimbi engatyiwa yile:
Ukusetyenzwa kwesinyithi esingenasici somgubo wesinyithi ikakhulu kusetyenziswa lo mgubo njengemathiriyeli ekrwada, ethi ke itshizwe kwaye icocwe kusetyenziswa ubuchule bokubumba. Ukuxuba umgubo, ukucinezela, ukucoca, ukugqiba, kunye nokulungiswa emva kokulungiswa ngamanyathelo aphambili kwi-powder metallurgy processing yensimbi engenasici. Uninzi lweminye imisebenzi iwela phantsi koluhlu lwe-post-processing, kubandakanywa umatshini, ukupakisha, kunye nokufakwa kwe-oyile.
Kule nkqubo yokuhamba, i-powder stainless steel elungiselelwe kuqala ixutywe ukwenza i-high-purity mix powder. Emva koko i-powder ilayishwa kwi-mold kwaye icinezelwe ibe yimo phantsi koxinzelelo oluthile. Iphepha eliluhlaza elicinezelweyo libekwe kwisithando somlilo esilawulwayo kunye ne-sintered kwiqondo lokushisa elingaphantsi kwendawo yokunyibilika kwezinto ze-matrix, ezibangela ukuba iinqununu ze powder zenze unyango oluphezulu lobushushu kwaye zenze ibhondi ye-metallurgical.
Makhe sazise inkqubo yensimbi engenastainless umgubo ukucutshungulwa metallurgy ngamanyathelo.
- Ukuxuba
Hlanganisa i-powder stainless steel kunye ne-additives kwaye uzigxothe ngokweemfuno zexesha ukwenza umgubo oxubekileyo ococekileyo.
- Ukubumba
Ngokobukhulu, isakhiwo, imilo kunye noyilo lokubumba imizobo yemveliso, yicinezele ukuba wenze i-carbide mold, uze ufake umatshini ukuvavanya ukubumba, kwaye uvavanye isampuli. Uyilo lokungunda kunye nomjikelo wemveliso yiveki enye.
- Ukunciphisa amafutha
Ukushisa kwe-degreasing kulawulwa kwii-800 degrees, kwaye i-vacuum bell furnace okanye i-mesh belt furnace isetyenziselwa ukuhlamba. Injongo kukususa i-lubricant eyongeziweyo.
- Sintering
Ekuqhubeni umgubo wensimbi engenasici, i-sintering yeyona nkqubo iphambili. Iipropati zokugqibela zomzimba kunye nezomatshini ezifunwa yi-compact compact zifunyenwe nge-sintering. I-Sintering yahlulwe ibe yiyunithi yesistim ye-sintering kunye ne-multi-component system sintering. Kwimveliso yangempela, kwisigaba esiqinileyo se-sintering ye-unit system kunye ne-multi-component system, ubushushu be-sintering buphantsi kunendawo yokunyibilika kwesinyithi kunye ne-alloy esetyenzisiweyo.
- Unyango olulandelayo
Unyango olulandelayo emva kwe-sintering lungagqitywa ngeendlela ezahlukeneyo ngokweemfuno ezahlukeneyo zemveliso. Ngokomzekelo, ukugqiba, i-oiling, machining, unyango lokushisa kunye ne-electroplating zisetyenziswa ngokuqhelekileyo kwimveliso yangempela. Ukongezelela, kwiminyaka yakutshanje, ezinye iinkqubo ezintsha ziye zaveliswa, ezifana nokuqengqeleka kunye nokubumba. Ezi nkqubo zisenokusetyenziswa ekusetyenzweni kwemathiriyeli yomgubo wesinyithi emva kokuntywila ukuze ufumane iziphumo ezifanelekileyo zokusetyenzwa.
Iindlela zokuphucula amandla kunye nobulukhuni besinyithi sesinyithi esingenasici
Okokuqala, i-powder yensimbi engenasici yenziwa ibe ngumzimba, kwaye emva koko umzimba ubekwe kwindawo yokunciphisa kwaye ugcinwe kwiqondo lokushisa elitshisayo ukuze wenze umzimba odibeneyo. Emva koko, umzimba we-sintered ubonakaliswe kwi-carbon-containing atmosphere kwaye ugcinwe kwiqondo lokushisa elingaphantsi kwe-600 ° C, ukwenzela ukuba ikhabhoni ikwazi ukwenza indawo ye-carburized ebusweni nangaphakathi kumzimba odibeneyo. Ngale ndlela, ukuqina kunye namandla e-powder metallurgy steel stainless steel kungaphuculwa kwindawo ye-carburized, kwaye ngenxa yokuba ubushushu bokufudumala bungaphantsi kwe-600 ° C, ukusabela phakathi kwe-chromium kunye nekhabhoni kunokuthintelwa, ukwenzela ukuba ukumelana nokugqwala okulungileyo kunokugcinwa.
AmaBanga eNsimbi eStainless aPhambili kwiPowder Metallurgy
- Iintsimbi zeAustenitic ezingenanto:
- SS-303:
- Iipropati: Amandla aphezulu kunye nokuqina, ukuxhathisa okulungileyo kokubola, okungeyo-magnetic.
- Usetyenziso: Ezikhethwayo kwiindawo ezifuna umatshini obanzi wesibini.
- SS-304:
- Iipropati: Amandla alungileyo kunye nokumelana nokubola; ibakala-injongo jikelele.
- Usetyenziso: Isetyenziswa ngokubanzi kuwo wonke amashishini ahlukeneyo ngenxa yokuguquguquka kwayo.
- SS-316:
- Iipropati: Ukumelana nokugqwesa okuphezulu xa kuthelekiswa ne-SS-303; non-magnetic.
- Usetyenziso: Ukhetho lokuqala lwenjongo-jikelele yosetyenziso, ngakumbi kwindawo ezonakalisayo.
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17-4 PH
- Iipropati: Amandla aphezulu, ukumelana nokugqwesa okugqwesileyo, kunye nokukwazi ukuqina ngonyango lobushushu (ukuqina kwemvula).
- Usetyenziso: Izixhobo ze-aerospace, izixhobo zonyango, kunye nezixhobo eziphezulu zokusebenza ezifuna amandla kunye nokuchasana nokudinwa.
- SS-303:
- Iintsimbi zeFerritic ezingatyiwayo:
- SS-430:
- Iipropati: Imagnethi enomxholo ophezulu wechromium; isiqulatho sekhabhoni esisezantsi sonyusa ukuxhathisa ukubola.
- Usetyenziso: Ilungele ukusetyenziswa kweemoto kunye ne-kitchenware.
- SS-430:
- Iintsimbi ze-Martensitic:
- I-SS-410 kunye ne-SS-420:
- Iipropati: I-Magnetic, amandla aphezulu, kodwa ukuxhathisa okuphantsi kwe-corrosion xa kuthelekiswa namabanga e-austenitic.
- Usetyenziso: Ihlala isetyenziswa kwi-cutlery kunye nezinye izicelo ezifuna ubulukhuni.
- I-SS-410 kunye ne-SS-420:
- Iintsimbi zeDuplex ezingatyiwayo:
- Ezi zidibanisa izakhiwo ze-austenitic kunye ne-ferritic, zinika amandla aphezulu kunye nokuphucula ukuchasana noxinzelelo lwe-corrosion cracking.