Izisombululo zefektri ye-Austenitic stainless steel stainless kufuneka zinikeze okungaphezulu kokuthotyelwa kwezinto-kufuneka ziqinisekise ukuxhathisa ukubola okusinda kwinkonzo yehlabathi lokwenyani: ukuvezwa kwekloridi ephezulu kwi-hydraulics ye-offshore, i-thermal cycling kwi-pump housings, okanye i-abrasive slurry contact kwiinkqubo ze-winch zemoto yobunjineli. E-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., Siye sasebenza ngoomatshini abangaphezu kwe-12,000 yentsimbi ye-austenitic yentsimbi yevalvu kunye nezindlu zepiston pump cylinder ukusukela ngo-2019-kwaye lonke uphononongo olungaphumeleliyo lusifundise into enye: ukuxhathisa umhlwa akubhakwa kwibakala. Yenziwe kulawulo lwenkqubo.
Ukuchasana neCorrosion kuqala ngaphambi koMatshini-kungekhona emva
Abathengi abaninzi bacinga ukuba i-ASTM A351 CF8M okanye i-UNS S31603 ngokuzenzekelayo ilingana “nobungqina bokurhweba.” Abalunganga. Siye sabona ukuphosa okufanayo kungaphumeleli kwiindawo ezifanayo zamanzi olwandle-enye yadlula uvavanyo lwe-2,000 yeeyure zetyuwa-spray; enye iqhume kwisithuba seeyure ezingama-72. Unobangela weengcambu? Hayi ukuphambuka kwekhemistri-kodwa ukuqiniswa okungahambelaniyo ngexesha lokuphosa isanti. I-microsegregation yasekhaya idale iindawo eziphelelwe yichromium ecaleni kwemida ye-interdendritic. Ulungiso aluzange luvavanywe kwakhona. Yayiyila ngokutsha inkqubo yokungena, yongeza iipleyiti zokupholisa, kwaye ibambe ubushushu bentsimbi engamanzi ngaphakathi kwe ± 5°C ngexesha lokugalela. Yiloo ndlela esibamba ngayo inombolo ye-ferrite phakathi kwe-5–8 FN kwi-CF8M nganye yokusasa-ingqinwe ngemagnethi probe *phambi* unyango lobushushu, hayi emva.
Asikhupheli i-metallurgy ngaphandle. Izigodo zethu zemathiriyeli ekrwada zilanda ubushushu ngakunye ukuya kwiingxelo zovavanyo lokusila (MTRs) ezibonisa eyona Cr, Mo, Ni, kunye nomxholo ongu-N—hayi nje “ukudibana ne-spec. Ukusetyenziswa okubalulekileyo okunje nge AMS 5387 cobalt ingxubevange yempompo yeendawo ezisebenza ecaleni kwezindlu ze-austenitic, siyaqinisekisa ukuhambelana kwegalvanic ngemilinganiselo enokwenzeka yesekethe enokwenzeka kwinkonzo yokulinganisa i-electrolyte. Ukuba umahluko onokubakho udlula i-50 mV, sihlengahlengisa iiparamitha zokudlula kumphezulu—nokuba isiseko sealloy “sichanekile.”
Apho uninzi lwamabango eAustenitic eStainless Steel Factory aphuka khona
Abanye ababoneleli baphumeza izibonelelo "ze-ISO-certified" ngelixa besebenzisa iikhalipha eziphathwa ngesandla ukulungiselela uhlolo lokugqibela lweejenali ze-0.005 mm tolerance shaft. Asazi. Yonke inxalenye yentsimbi engatyiwa yi-austenitic eshiya indawo yethu yaseQingdao ijongwa ezintathu ezingaxoxisaniyo:
- Umphezulu wokuqinisekisa ingqibelelo: I-interferometry yokukhanya okumhlophe ebusweni bokutywina, hayi nje uburhabaxa (Ra) amaxabiso-kuba umphezulu ogudileyo okrazuka ngaphantsi komhlaba umema ukuthotywa kwe-crevice
- Ukuqinisekisa umaleko: I-electrochemical impedance spectroscopy (EIS), hayi nje iimvavanyo zediphu ye-nitric acid-ngoko silinganisa ubukhulu be-oxide kunye noxinzelelo lwesiphene, hayi nje ukutshintsha umbala
- Imephu yoxinzelelo olushiyekileyo: I-X-ray diffraction kwiindawo ezi-5 ezibalulekileyo kwinxalenye nganye, ngokukodwa kufuphi neefayili kunye neentambo-ekubeni uxinzelelo lwe-tensile ngaphezu kwe-200 MPa lukhawuleza i-SCC kwiindawo ze-chloride
Enye i-OEM ye-hydraulic yaseYurophu iyala ukuthunyelwa kwethu okokuqala kweziseko zempompo ze-S31603-hayi ngenxa yempazamo yobukhulu, kodwa ngenxa yee-spikes zoxinzelelo olushiyekileyo kufutshane nemingxunya enyukayo. Siphendule ngeemephu ezigcweleyo zoxinzelelo, emva koko sayila ngokutsha i-clamping fixture kwaye songeza i-vibration yokunciphisa uxinzelelo ukuguga ngaphambi komatshini wokugqibela. Ukuhanjiswa kwehle kwiiveki ezimbini. Ubomi bomhlwa bandiswa ukusuka kwi-18 ukuya kwiinyanga ezingama-47 kulingo lwasendle. Olu lurhwebo-off akukho datha yedatha.
Intsebenzo yeHlabathi yokwenyani ifuna ukuQeda kweHlabathi lokwenyani
Amanqaku oMatshini abalulekile. I-0.8 µm isiphelo se-Ra sinokudibana nespekthi zokuzoba—kodwa ukuba loo manqaku ahamba ngokunxuseneyo ukuya kwicala eliya ngakulo kumzimba wevalvu, ziba ziindawo zokuqalisa umhlwa. Silungelelanisa iindlela zesixhobo ukuze zingqamanise ukulayishwa kwenkonzo: i-circumferential yeeshafti ezijikelezayo, i-axial yezindlu ezingashukumiyo, kunye neradiyi edityanisiweyo kwiinguqu. Kwizinto ezisekelwe kwi-T800 ze-cobalt ezidityanisiweyo kwiindibano ze-austenitic, sisebenzisa i-electropolishing *emva kwe-welding * hayi ngaphambili-ukususa i-oxides yendawo echaphazelekayo ngaphandle kokunciphisa i-weld toe.
Uphuculo lwethu oluceliwe kakhulu? Ukugqithisa nge-citric acid + i-nitrate ye-sodium endaweni ye-asidi ye-nitric yendabuko. Ngoba? Ngenxa yokuba i-citric acid isusa isinyithi samahhala ngaphandle kokunyibilikisa i-chromium-ibaluleke kakhulu xa kusenziwa i-duplex-austenitic hybrid parts. Siqinisekisa iziphumo ngovavanyo lwe-copper sulfate * kunye * nesisombululo sesalathisi se-ferroxyl, sijonga zombini ukucoceka komphezulu kunye nokufana kwefilimu. Abathengi babika i-3.2 × iintsilelo zentsimi ezimbalwa kufakelo lonxweme emva kokutshintsha.
Ukukhetha i-Austenitic Stainless Steel Factory kuthetha Ukukhetha iNtsebenziswano yeNkqubo
Ukuba isicelo sakho sibandakanya uxinzelelo lwebhayisekile, ubushushu obunyusiweyo, okanye ukudibana kwesixhobo esixutyiweyo, ibakala lemathiriyeli linyathelo elinye kuphela. Inyathelo lesibini kukuqinisekisa ukuba umthengisi ulawula njani ulwahlulo, uxinzelelo, kunye nesimo somphezulu kwiibhetshi. Inyathelo lesithathu liqinisekisa ukuba i-QA yabo ayiyeki kwi-dimensional conformance-ilinganisa ukuziphatha kwe-electrochemical, i-microstructural homogeneity, kunye nokuphila ixesha elide.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. isebenza njengolwandiso lweqela lakho lobunjineli-hayi umthengisi wamalungu. Sijongana ngokutsha ii-callouts ze-GD&T zempembelelo yokwenziwa kokwenziwa kokunganyangeki komhlwa. Sifakela iflegi izibini ezinokubakho galvanic phambi kokuba kuqalwe. Sigcina ukulandeleka okupheleleyo kwemathiriyeli ukuya kwinani leladle kunye nelog yomjikelo wokuphatha ubushushu. Kwaye xa umhlwa uvela kwinkonzo, asithumeli enye indawo-sithumela ingxelo yengcambu ene-metallurgical cross-sections kunye neeprothokholi zokulungisa.
Ukuxhathisa okuthembekileyo kokutya akuqinisekiswanga ngokutyunjwa kwebakala. Ifunyenwe kwi-Foundry, ingqinwe kwilebhu, kwaye iqinisekisiwe ebaleni. Lo ngumgangatho wonke umzi-mveliso we-austenitic wensimbi engenasici kufuneka uhlangane-kodwa bambalwa ngokwenene abakwenzayo.
