I-Investment Casting Surface Gqiba: IiNqobo ze-Ra, okulindelweyo, kunye neNgcaciso ye-Smart

Buza abathengi abalishumi ukuba kuthetha ukuthini "ukugqiba kakuhle komphezulu" xa kusenziwa kwaye uya kufumana iimpendulo ezilishumi ezahlukeneyo: "egudileyo," "njengoomatshini," "akukho migodi," "ngcono kunokuphosa isanti," "Ra 3.2 kuyo yonke indawo." Uninzi lwezo mpendulo zibiza imali - ngokuqhelekileyo ngaphezu kokuba zifuna. Ukugqitywa komphezulu yenye yezona mfuno zichazwe ngokugqithisileyo ekuthengeni izinto, kwaye yenye yezona zinto zingaqondwa kakuhle. Esi sikhokelo sichaza ukuba yeyiphi i-investment casting enenyani, indlela amaxabiso e-Ra asebenza ngayo kwindawo ephosiweyo, kunye nendlela yokucacisa ukugqiba ukuze uhlawule kanye oko kufunwa yinxalenye yakho - akukho okunye.

Kuthetha ukuthini "ukuGqiba komphezulu" kwi-Casting

Kwinxalenye yomatshini, ukugqitywa komphezulu ngumbandela wejiyometri yesixhobo, isantya sokutya kunye nesantya se-spindle - inkqubo elawulwayo evelisa iziphumo ezinokulinganiswa, eziphindaphindwayo. Kwi-casting, i-as-cast surface yikopi yangaphakathi yeqokobhe le-ceramic: izuza njengefa uburhalarhume beqokobhe, iguqulwe ngendlela isinyithi esizalisa ngayo kwaye siqine. Loo kopi ilungile ngokumangalisayo - yiyo kanye loo nto i-investment casting ikhethwa kwizinto zokuthambisa kunye nezisebenzayo ngokufanayo - kodwa luhlobo olwahlukileyo lokugudiswa kunomatshini, kwaye kufuneka lucaciswe ngokwahlukileyo.

Umlinganiselo osemgangathweni nguRa (umndilili woburhabaxa) , kwiimicrometers (µm). Njengemodeli yengqondo erhabaxa yotyalo-mali:

• I-Ra 0.8–1.6 µm - imiphezulu ecolekileyo njenge-cast, enokufezekiswa kwindawo ejongene neqokobhe kwiindawo ezincinci kwinkqubo ye-silica sol; ngokufuthi eyona as-cast onokuthi uthembele kuyo
• I-Ra 1.6–3.2 µm -uluhlu lwentengiso oluqhelekileyo njenge-cast for uninzi lwentsimbi kunye ne-ductile intsimbi yokutyala imali
• IRa 3.2–6.3 µm — iqhelekile kumalungu enkqubo yeglasi yamanzi kunye nokujulwa okukhulu; kusengcono kakhulu kunokugalelwa kwesanti
• Ra 6.3–12.5 µm - indawo yokugalela isanti; kwakhona apho imiphezulu enzima efana ne-cast kwi-castings enkulu yotyalo-mali inokufika
• Ra 0.4–1.6 µm - ihlabathi elinomatshini; ifumaneka kuphela ngokususa izinto

Umsantsa phakathi kwe "best as-cast" kunye "nawuphi na umgangatho owenziwe ngoomatshini" ngumda apho uninzi lweempazamo ezibaluliweyo zenzeka khona.

Kutheni le nto iindawo zokuphosa uTyalo-mali zahlukile kwiSanti yokuCasa

Izizathu ezibini, zombini zifanelekile ukuqonda kuba zichaza umahluko wexabiso.

Umgangatho weqokobhe. Iqokobhe le-silica sol ceramic esetyenziswa kubunjani botyalo-mali linomphezulu ocolekileyo, oshinyeneyo wangaphakathi - ngokukodwa umaleko weceramic okopa ipateni yewax ngoburhabaxa obuphantsi. Amaqokobhe eglasi yamanzi arhabaxa kwaye angabizi kakhulu. Umphezulu wokungunda wesanti, kunjalo, isanti: iinkozo ezizimeleyo zishiya umzobo wazo ekugaleleni, zivelisa uphawu olurhabaxa, ukugqiba komphezulu omdaka (kunye "nesanti" yakudala yomphezulu apho ipatheni iraphulela umngundo). Yiyo loo nto "kukuphosa, ngokuqinisekileyo kurhabaxa" yingqondo yokuphosa isanti - ayisebenzi ngokuzenzekelayo kwi-investment castings.

Akukho mgca wokwahlula. Ukujula kwesanti kunye namalungu okujula okufayo athwala umgca wokwahlula apho iziqingatha ezibini zokungunda zidibana khona, kunye namanqaku e-ejector pin kunye nee-engile zokuyila. Ukuphosa utyalo-mali akukho nanye kwezi: ipateni ye-wax ngumzimba odibeneyo, ngoko ke ukuphosa akukho flash yokwahlukana kwaye akukho mfuneko yedrafti. Loo mahluko mnye ususa eyona nto ibonakalayo "yokuphosa inkangeleko" kwaye sesinye sezizathu eziphambili zotyalo-mali kwiindawo ezichaziweyo apho inkangeleko ibalulekile-izixhobo zempompo, i-valve trim, izibiyeli zemoto, izixhobo zokuhombisa.

I-Cosmetic vs iFunctional Surface Requirements

Eyona mpazamo yenkcazo ebiza kakhulu kukuphatha i-cosmetic surface njengento esebenzayo. Umbuzo omawubuze kuwo wonke umphezulu ngulo: yintoni le ingako ngokwenene eyenza lo mphezulu?

Izinto ezisebenzayo - ukutywinwa kobuso, izihlalo ezithwele, ubuso be-gasket, iindawo ezisebenzayo, ii-grooves ezikhokela i-O-rings - zineemfuno zokusebenza zangempela. Kodwa qaphela into abangafane babenayo: imfuneko yokugqiba njenge-cast. Imiphezulu esebenzayo iphantse isoloko isenziwa ngoomatshini , ngenxa yokuba ukunyamezela kunye nokugqiba abakufunayo (Ra 0.8, flatness 0.05) ayinakuvela kuyo nayiphi na inkqubo yokuphosa. Ngoko umbuzo osebenzayo-wokugqiba kwi-investment casting usoloko uphendulwa ngu "machine it," kwaye i-as-cast Ra ayibalulekanga apho.

Umphezulu we-cosmetic - obonakalayo ngaphandle kwenxalenye, umzimba wevalve, ubuso besibiyeli obubonwa kwi-injini bay - kulapho i-as-cast finish ibaluleke kakhulu, kwaye apho ukucaciswa ngaphezulu kuxhaphakile. Imfuno ye-as-cast ye-Ra 3.2 kwindawo yeglasi yamanzi inyanzelisa inkqubo ye-silica sol ebiza kakhulu okanye imisebenzi eyongezelelweyo yokuqhushumba / yokumenyezeliswa kwenzuzo yokusebenza. Imfuno ye-as-cast Ra 6.3 yayiza kudlula ngokunjalo.

Umgaqo wesithupha esiwusebenzisa e-Ningbo Ruican: khankanya ukugqiba njenge-cast-cast kuphela apho ibalulekile ngokubonakalayo okanye i-adhesion ye-coating elandelayo, kwaye uyigcine iyinyani yenkqubo - i-Ra 3.2 ye-silica sol, i-Ra 6.3 yeglasi yamanzi, ngaphandle kokuba ufuna ngokunyanisekileyo ngcono kwaye ulungele ukuyihlawula.

Apho kugqityezelwa khona ngeyona nto ibalulekileyo: Ukwaleka kunye nokuMdla

Kukho indawo enye njengoburhabaxa obufanele ukuhoywa: apho inxalenye iya kupeyintwa, ifakwe ngumgubo okanye ifakwe i-electroplated. Imiphezulu erhabaxayo inencochoyi ebukhali ebonisa ngeengubo ezicekethekileyo ("ixolo le-orenji"), kwaye iingubo zingabhuloka phezu kwemingxuma engaphezulu kunye namadyunguza kamva. Kwiindawo ezipeyintiweyo, abathengi bahlala bechaza "i-shot blasted, emva koko ipeyintiwe" - ukuqhushumba kwenza imisebenzi emibini: ukucoca isikali kunye nokudala iphrofayili ye-anchor yokwaleka.

Kwi-powder coat kunye ne-e-coat, indawo egudileyo njenge-cast (i-Ra 3.2-6.3) kunye nepasi eliqhumayo elikhanyayo linika ingcali, kunye nokugqiba. Ukugxotha i-Ra 1.6 kuyo yonke i-casting ngaphambi kokuba ipeyinti ichithe imali - i-coating iya kulinganisa iincopho ze-microscopic, kwaye iindleko zokupholisa iindawo eziphosiweyo ukuya kwelo nqanaba zibalulekile.

Uwuchaza Njani uMphezulu Gqiba ngokuchanekileyo

Isikhokelo esisebenzayo senkcazo ye-RFQ yakho elandelayo:

1. Yahlula imiphezulu engoomatshini kunye neyokuphosa kumzobo. Phawula iindawo ezisebenzayo njengoomatshini kunye nokunyamezela kwe-IT-grade kunye neRa. Phawula okuseleyo njengokuphoswayo ngecallout enye yehlabathi.
2. State Ra kuphela apho kuqinisekiswa. Kumgangatho owenziweyo, umlinganiselo we-Ra unamaqhinga (ulandelelaniso lweprofilometer ngapha kwegophe, umphezulu oqhushumbayo uyangxola). I-callout eyinyani efana ne-"as-cast Ra ≤ 6.3 µm, shot blast" iyavavanywa kwaye inyanisekile; "Ra 1.6 as-cast" ayikho kwaye iya kuxabiswa ngathi ifakwe ngoomatshini.
3. Sebenzisa ukwamkelwa okubonwayo apho kunokwenzeka. Ngomgangatho wokuthambisa, vumelana nesampulu ebonwayo/ye-analog ("ingqamana nesampulu evunyiweyo A") endaweni yenani. Oku kukuziqhelanisa okusemgangathweni kwishishini kwaye kunyanzeliswa ngakumbi kunomnxeba weRa kwindawo eqhushumbayo.
4. Tshatisa i-callout kwinkqubo. Musa ukukhankanya ukugqiba kwe-silica-sol-level kwindawo yeglasi yamanzi, kwaye ungahlawuleli i-silica sol nje ukugqiba ukuba uqhushumbo emva kokuba inyani ihlangabezane neemfuno zakho.
5. Buza i-Foundry ukuba yintoni kanye kanye abayiphetheyo. I-Foundry ecaphula isakhono sayo sokwenyani njenge-cast, kunye neesampuli, liqabane; lowo uthembisa Ra 1.6 njengoko-cast kuyo yonke into amaxabiso emngciphekweni.

Ukuqhushumba, Ukugingqika kunye nokugudiswa: I-Finnish Toolkit

Ngaphaya kokuphoswa, kukho uluhlu lonyango olusezantsi-ukuya-kwixabiso eliphezulu ekufuneka ukwaziwa:

• Ukudubula kokudubula (okuqhelekileyo, kubandakanywa): kususa i-shell shell kunye nesikali, i-uniform matte finish, ivula umphezulu wokugquma. Umgangatho phantse kuzo zonke iicastings zethu.
• Ukuqhushumba kwesanti/amaso (kancinci): I-etch ekhaphukhaphu kwiindawo zokuthambisa okanye iindawo ezibhityileyo ezidubule uqhushumbo ziya kuvula.
• I-Vibratory tumbling (i-cheap smoothing): i-deburrs edges kwaye ijikeleze iikona ezibukhali; ilungile kumalungu amancinci aneephetho ezichukumisa abasebenzi bendibano.
• Ukuguliswa koomatshini / ukugquma: kuphela apho umphezulu kufuneka ujonge ngoomatshini okanye ugqitywe ngesipili; ixabiso linyuka ngokukhawuleza kunye nommandla.
• Intsimbi yeglasi yokuchama: ukulawulwa, ukugqiba okufanayo kunye nenzuzo yoxinzelelo oluthambileyo; isetyenziswe kwiindawo zokuthambisa kunye nezokudinwa.

Kuninzi lokuphoswa kwemizi-mveliso, ukudutyulwa kukuphela okungagqibekanga kwaye kuyahlangabezana nemfuneko. Inyathelo ngalinye elingaphaya kwalo kufuneka libe nesizathu.

Ixabiso eliyiNyaniso lokuBalulisa ngokuBalukileyo Gqiba

Amanani abambekayo ayenza ingongoma. Kwi-2 kg yentsimbi yokutyalomali eqhelekileyo:

• I-As-cast Ra 6.3, i-shot blast: i-baseline cost - ifakwe kwi-quote
• As-cast Ra 3.2 (silica sol surface): +5–15% iindleko zenkqubo, ngamanye amaxesha zero ukuba iqokobhe lilungile.
• Imiphezulu engundoqo eyenziwe ngomatshini kuphela: + 20–40% iyonke indleko yenxalenye (ixesha lomatshini ekujuleni okungenjalo kufutshane nomnatha)
• Imiphezulu yezobuhle ekhazimlisiweyo: + 30–60% okanye ngaphezulu kuloo miphezulu

Inyaniso engathandekiyo: ukugqitywa komphezulu kulapho i-Foundries ifumana umda kwimizobo echazwe ngaphezulu. Umthengi othi "guda yonke into" ufumana isicatshulwa esihlawulela ukupolishwa abangazange babone. Umthengi othi "umatshini ezi ndawo zintandathu, qhumisa intsalela, ivume ngesampulu" ufumana isicatshulwa esikhuphisanayo kunye nenxalenye eyenza umsebenzi wayo.

Kutheni uNingbo Ruican ekhathala ngale nto

Senza i-silica sol kunye neglasi yotyalo-mali lweglasi yamanzi kwi-carbon steel, i-alloy steel, insimbi engenasici kunye ne-ductile iron, kunye nevenkile ye-CNC yangaphakathi kunye nokukwazi ukunyanga okugcweleyo ukusuka ekuqhunyisweni ngokukhazimula. Xa sihlolisisa umzobo, ukucaciswa komphezulu yenye yezinto zokuqala esizixubushayo - kungekhona ngenxa yokuba sifuna ukuphepha umsebenzi, kodwa ngenxa yokuba iinjineli zethu zokucaphula ziqeqeshelwe ukwahlula oko kufunwa yinxalenye kwinto ethethwa ngumzobo, kwaye ukukuxelela umahluko ngokunyaniseka. Isiphumo sisicaphulo sokugqiba osifunayo, sisiwe ngexabiso elifunwa yimarike.

Sithumelele umzobo wakho kunye nengxelo ecacileyo yokuba yeyiphi imiphezulu esebenzayo: siya kuqinisekisa into esinokuyibamba njenge-cast, yintoni ekufuneka yenziwe ngoomatshini, kunye nokuba yeyiphi inkcazo yokugqiba yokwenyani kufuneka ibe yintoni.

Fumana uphononongo lokugqitywa komphezulu kunye nesicatshulwa sakho esilandelayo www.kstcasting.com.