Kwambo na Fasaha ta Kwalla: Hanyoyin Kwalla don Samun Kwambo mai Kyau

Kula Kuma Aiki Na Elektroli: Kimiya Mai Kyau Don Samun Tashin Dukkanin Gwamnati Mai Kyau Na Kwayar Fasalayin Satali

Yaya Kula Kuma Aiki Na Elektroli Ya Cire Kwayoyin Kusa Da Kuskure Kuma Ya Sa Kusurci Na Fasalayin Satali

Electropolishing yana aiki ta hanyar kuma na elektro-kimiyar da suka magana daga cikin kwayoyin stainless steel. Idan an sanya shi a tsaki mai amfani da electrolyte da aka taka so, kuma an yi direct current a cikinsa, abu na kwayoyi yana zama mai karama (anode). Wadanda suka zuwa bayan: wadanda gurasa suka ci gaba daya daga wadanda gurasa masu karama. A matsayin atom, wannan aiki yana saukara dukkan wadanda ala'adu. Yana cire wadanda micro-burrs da suka baya ne daga machining, yana cire dukkan wadanda abubuwa da suka taka a cikin kwayoyi, kuma yana saukara dukkan wadanda ala'adu na kwayoyi a kowane bangare. Neman? Kwayoyin da ke nufi kamar yadda ya kamata a wadanda aikin kimiyya da suka fi kama da nufi.

Electropolishing yana aiki kontra corrosion biyu hanyoyi na farko. Ya kare su kuma wani daga cikin gaba daya na yadda suka faru kamar pitting da crevice corrosion. Sannan shine chromium oxide layer a gaba na stainless steel suka zama ba ne mai kyau kuma mai tsawo yayi a lokacin amfani. Wanda muna samu shi ne babu kuma abin da ya fi kyau: stainless steel mai electropolishing zai iya samun gaba daya na roughness daga 0.1 zuwa 0.4 micrometers. Wannan yana nufin cewa suka zama babu kuma gaba daya na yadda suka faru kuma ba su da pores, wanda ke sauya su zama babu kuma bacteria suka taka cikinsu kuma suka zama babu kuma suka raba su tare da kari. A wasu al'umma wanda cleanliness yana da muhimmanci sosai, wannan yana zama babu kuma farko. Masu sanya abubuwan al'ummarra na medisine suna amfani da electropolishing sosai saboda abubuwan su kamar yadda suka faru kuma suka zama sterile. Wannan yana daidai kuma a wasu masu sanya abubuwan kudin kudin wanda suka so su kare contamination risks. Masu sanya abubuwan kudin kudin suna iya fahimci wannan yadda suka faru saboda suka zama babu kuma abubuwan da suka faru kamar fluid systems wanda kadan contamination zai iya haifar da halin da yake da muhimmanci.

Electropolishing da Passivation: Farko na Daga Cikin Kimiya na Tsawon da Kwalitii don Stainless Steel Strip

A yadda kowane daga cikin waɗannan ƙirƙirai suka saukar da tsayayyen kariya, matakai na gaskiya da kuma farko na aiki su ne kamar yadda suka faru. Passivation shi ne kimiyar-bazara ta hanyar amfani da abubuwan kimiyar nitric ko citric acid don fofa wani iron mai zama da kariya kuma ta sanya nisba na chromium zuwa iron a cikin layi na passivation da aka samu. Ba shi bai yadda ya canza tsawon tsarin da kuma ba shi yadda ya fofa abubuwa.

Electropolishing, wacce ke cikin farko, shi ne kimiyar-kimiyar da fofa abubuwa ta hanyar anodically fofa 5–50 microns na tsawon abubuwa. Wannan ya ba da uku farko na kwalitii da ba za a samu su daga passivation:

• Tsawon Tsarin : Ya ba da tsawon da kamar miri da Ra < 0.2 μm—kamar yadda ba za a iya samun su daga passivation
• Kwancewa na Mabukatu : Ya sa mabukatu da suka cika, kusurun mikro, da yadda suka gudan kuma suka daga amfani da asalatin na kimiya
• Ayyukan : Alƙawarun tattalin arziki na sanannin da suka bayyana cewa satau baya na electropolished suna taimaka wajen kwancen kuma suna ci gaba daya daga cikin 80% kamar yadda suka ci gaba daya daga cikin satau baya na passivated

Passivation zai kasance mahallin da ke da kyau don amfanin da ke bukatar kula ga karamin kariya. Electropolishing zai kasance mahallin da ke bukatar kula ga karamin kariya—kamar yadda ake amfani da shi a karamin wafer na semiconductor, abubuwan bioreactor, ko alƙawarun da ke amfani da shi a jihun karamin kariya.

Polishing na Kima: Kwancewa ta hanyar kusurshe don samun satau baya na karamin kariya a stainless steel strip

Tsarin da aka rubuta a cikin kalmomi: Daga grinding mai kusurshe zuwa buffing mai kusurshe a stainless steel strip

Tsarin gudun kimiyya ya zama mai kyau a cikin kwayoyin stainless steel ta hanyar yin wani tsari na kuskuren da suka gabata. Kullum mutane suna fara da kuskure mai ƙarfi a matsayin 80 zuwa 120 grit don fuskare kusurun tashin weld, kusurun tashin mill, da kuskuren da suka baya daga tsarin kuma. Wannan bayanin farko yana da mahimmanci saboda yana nuna kwayon da ke da ƙarfi, amma yana da karami a matsayin 0.05 mm. Bayan sannan yana zuwa kuskure na wasu a matsayin 180 zuwa 240 wanda suka fuskare kuskuren da suka baya daga kuskure na farko. A wannan lokaci, kwayon ya zama mai kyau. Bayan sannan yana zuwa kuskure na kwayoyin da suka gabata a matsayin 400 zuwa 600 wanda suka kara kwayon da ke da ƙarfi don sauya kuma a cikin kewayen da za su kashe kuma. A matsayin kowane tsari na kuskuren da suka gabata, yana kasa ƙarfi na 0.1 zuwa 0.3 mm ba tare da kuskuren samunin kwayon.

Yin gyaran madubi shi ne mataki na ƙarshe na wannan aikin. Ruwan masana'anta masu juyawa da aka ɗora da ƙwayoyin lu'u-lu'u masu juyawa daga 1 zuwa 3 microns suna haifar da ƙwanƙwasawa da zafi don yin fuskar filastik, wanda ya haifar da waɗannan ƙarancin ƙarancin ƙarancin ƙarancin 0.1 microns. Samun sakamako mai kyau ya dangana ne a kan sarrafa matsin da ake yi a wannan mataki, yawanci tsakanin fam 2 zuwa 5 a kowace inci murabba'i. Gudanar da zafin jiki ma yana da mahimmanci domin idan masu aiki suna amfani da karfi sosai ko barin ƙafafun su zauna a wuri ɗaya na dogon lokaci, akwai hadarin overheating takamaiman yankuna. Wannan zafi mai yawa zai iya kawar da chromium daga iyakar hatsi, yana raunana ƙarfin kayan don tsayayya da lalata a tsawon lokaci.

Gyaran Belt da Ƙarshen Ƙarshen: Matsayi a Shirye-shiryen Pre-Mirror da Ƙara Haske

Gwanin bel yana aiki a matsayin tushen ingantaccen tushe don shirye-shiryen pre-madubi. Amfani da madaidaiciyar belin zirconia-alumina mai laushi, yana ba da daidaitattun kayan satin masu dacewa da ƙa'idodin ASTM A480 No.4 ko HL (ƙirar gashi) mai daidaitawa da ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙaran

Kunya wani shine na gaba daya yana da amfani da kudin cotton ko sisal wanda aka shiga shi da compounds na chromium oxide. Idan wannan kudi ya tsinku da stainless steel, yana zama cause na friction wanda ke sa kuma yana ci gaba da 200 daraja Celsius. Wannan daraja na harshe ta kasance mafi kyau don sa metal ya tashi kadan ba tare da kariya na oxidation ba. Algorizim na aiki yana da aiki mai kyau don sanya suka daga surface na karami, yana nufi reflection na light da 70 zuwa 90 percent idan aka compare da raw surfaces. Bayani mai muhimmi: jarrabawa speed na buffing ya kamata ya kasance ƙasa da 2500 RPM don gano abrasive particles su ka taka a cikin metal. Wannan grit mai taka zai iya haifar da pitting a lokacin da aka gabata, amma a cikin stainless types na farko kamar grade 304 da 316 wanda suka yi amfani da su a cikin kariya na industries.

Standardun Surface Finish da Amsar da Selection na Application don Stainless Steel Strip

Ƙaddamar da Ƙaddamar da Ƙaddamarwa na Ƙarshen Ƙasa (No.3, No.4, HL, BA, No.8) Tasirin kan Tsarin, Cleanability, da Aesthetics na Strip Strip

Zaɓin kyakkyawan ƙarancin farfajiyar don madaurin bakin karfe yana buƙatar daidaita ƙa'idodin masana'antu tare da fifiko na aikiba kawai bayyanar ba. Kowane ƙare yana wakiltar daidaituwa na ganganci na halayyar metallurgical, ƙwarewa, da kuma aikin ƙarshe:

1. Formability : Ƙarƙashin ƙarewa kamar No.3 (Ra 0.41.0 μm) yana ba da ƙarin ƙididdigar gogewa wanda ke rage galling yayin zane mai zurfi. Ƙarshen ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin
2. Mai iya tsaftacewa kwallon da ke kara gaba (No.8) (Ra ≤ 0.05 μm) ya ba da yawan karamba na bakteriya ta yau, wanda aka tabbatar da shi a cikin tushen koyaya na hygienic design wanda ke kara ISO 14971. Amma kwallon da suka dace da kudin kudin kamar HL ko No.4 suna da kudin kudin kuma zai iya saita biofilms idan ba su kare kariya da kariya—wanda ke nufin su ba za su dace ba don bayanai na sterile process.
3. Hannun Ayyuka kwallon na architectural cladding yana amfani da BA ko No.4 don samun kara gaba da kara gaba da kudin kudin, amma kwallon na luxury interiors ko instrumentation panels yana bukata kara gaba na optical clarity na No.8.

Lokacin da ake ma'amala da kayan da ke lalata ko kuma yanayin da tsabta take da muhimmanci, shimfidar da ta fi santsi tana taimakawa wajen hana lalacewar matakan kariya lokacin da ake tsabtace abubuwa ko amfani da su a kai a kai. A gefe guda, wasu aikace-aikace suna buƙatar saman da za su iya ɗaukar shimfiɗa ko tsayayya da lalacewa, don haka wani matakin rubutu a zahiri yana aiki mafi kyau ga waɗannan shari'o'in duk da cewa yana iya nufin aiki tare da ƙaramin ƙarfe. Mabuɗin shine daidaita halayen farfajiyar da abin da gaske yake da mahimmanci ga kowane takamaiman amfani. Yi la'akari da kayan aikin sarrafa abinci da bangarorin lif ko sassan gidaje masu mahimmanci a cikin jirgin sama. Kowannensu yana bukatar ma'auni daban-daban don yadda suke aiki a karkashin yanayin duniya.

Gishiri mai gogewa da dabarun Grit: Inganta Zabin Abrasive don Matsayin Strip na Karfe da Finish da ake so

Kamar yadda ake shigar da karamin abu na gaba daya, yana da matata mafi kyawu don samun hanyoyin gaba daya na stainless steel strips, amma a matsayin kuma dukkanin tsarin su da kariya na kusantarwa. Kullum mutane suna amfani da wani hanyar rarraba ta hanyar takaici (progressive reduction approach). Ku fara da karamin abu mai gaba daya kamar P60 zuwa P120 don cire karamin abu na weld spatter, karamin abu na scale buildup, ko karamin abu na machining marks na gaba daya. Sannan ku ci gaba da karamin abu na wasu kamar P150 zuwa P240 wanda suka taimaka wajen rarraba karamin abu na kuskure da sauran abubuwan da suka zama gaba daya don samun karamin abu na polishing. Karamin abu na gaba daya da ke gaba daya na P320 suka tabbata cewa karamin abu na gaba daya ya zama gaba daya a dukkanin hanyoyi. A karni, karamin abu na gaba daya da ke gaba daya na 10 microns suka nuna cewa suka zama gaba daya a hanyar mirror finish, wanda suka bai mu karamin abu na gaba daya da karamin abu na gaba daya.

A lokacin da aka zauna abubuwan da suka hada, kuma kamar yadda ya daga cikin karami da kuma nau'in alloy suna iya zama babbaro. Karamin kayan karami da ke cikin 0.5mm suna bukatar taimaka mai kyau. A wuce P180 grit ko kuma mafi yawa yana taimakawa wajen karewa ga karamin da suka hada a lokacin da aka yi amfani da karamin da suka hada ta yawa. Kullum mutane na gida na karamin suka gano cewa stainless steels na austenitic kamar 304 da 316 suna aiki da aluminim oxide abrasives. Amma a lokacin da aka yi amfani da martensitic ko precipitation hardened alloys, yana da kariya. Wadannan abubuwan da suka hada da yawa suna bukatar ceramic wheels ko silicon carbide grains. Wadannan abubuwan da suka hada da yawa suna iya zama da karami da yawa (work harden) kuma suka haifar da karamin da suka hada a baya (subsurface cracks) wanda ba za a so su a lokacin da aka zuwa. Kuma ka sani hakan! Coolants da suka hada da ruwa ko synthetic oils da suka hada da kyau suna da muhimmiyar kamar yadda ya daga cikin karami. Idan ba a yi amfani da karamin da suka hada da kyau, yanzu suka hada da karami da suka hada da yawa (surfaces burn up), wanda ya haifar da karamin da suka hada da yawa (chromium layer) kuma ya haifar da karamin da suka hada da yawa (pits) wanda suka haifar da karamin da suka hada da yawa (corrosion resistance) a lokacin da aka zuwa.

Kamar yadda yake tare da kowane tsari na ƙarshe, tabbatar da aikin abrasive akan fitattun fitattun samfuran kafin cikakken samarwa yana hana sake aiki mai tsada da tabbatar da maimaitawa, sakamakon da ya dace da ƙayyadaddun bayanai.

Sashen Tambayoyi

Me ake amfani da electropolishing don?

Ana amfani da electropolishing don cire micro-burrs, haɓaka juriya na lalata, da cimma ƙarancin santsi a kan saman bakin karfe. Yana da mahimmanci ga aikace-aikace da ke buƙatar tsaftacewa mai tsabta da amincin farfajiyar.

Ta yaya electropolishing ya bambanta da ba da izini?

Duk da yake duka hanyoyin suna da nufin inganta juriya na lalata, electropolishing ya ƙunshi cire kayan lantarki zuwa farfajiyar santsi, yayin da passivation kawai ya canza abun da ke cikin sinadarai ba tare da canza yanayin farfajiyar ba.

Menene amfanin yin amfani da na'ura?

Polishing na makin yana cire wasu ala'adu na kishin wajen kishin stainless steel kuma yana sauya shi don samun kammalawa na akwai. Yana iya amfani da tsari na daga grinding mai gaba ce kuma zuwa buffing na mira, wanda ke bada damar kara kishin shine da safiya.

Me ya sa abin da ke muhimmi ne a cikin kishin stainless steel?

Za a samu kishin wajen da ke so idan a za a zaɓa abubuwan da suka fuskanta, kuma ba za a bincika kishin na kishin ko kishin na kishin da ke cire kishin stainless steel.