Li-ductile cast iron resin tse koahetsoeng ka lehlabathe bakeng sa koloi e tsamaisang thepa e nang le lits'ebeletso tsa machining tsa CNC.
Resin e koahetsoeng ke lehlabathe ka hloboke ts'ebetso eo lehlabathe le kopantsoeng le resin ea thermosetting le lumelloang ho kopana le poleiti e futhumetseng ea tšepe ea tšepe, e le hore ho thehoe khetla e tšesaane le e matla ea hlobo ho potoloha pattem. Ebe khetla e tlosoa ho tloha pateroneng 'me cope le ho hula li tlosoa hammoho' me li bolokoe ka botlolong e nang le lisebelisoa tse hlokahalang tsa ho boloka 'me tšepe e qhibilihisitsoeng e tšeloa ka har'a hlobo.
Lisebelisoa tsa tšepe ke li-alloys tsa ferrous tse nang le lik'habone tse fetang 2%. Le hoja litšepe tse entsoeng ka tšepe li ka ba le peresente ea carbon pakeng tsa 2 le 6.67, moeli o sebetsang hangata o pakeng tsa 2 le 4%. Tsena ke tsa bohlokoa haholo-holo ka lebaka la litšoaneleho tsa tsona tse babatsehang tsa ho lahlela. Litšepe tse bohlooho le li-ductile cast irons (tseo hape li bitsoang nodular cast iron kapa spheroidal graphite iron).
Ha graphite e le teng e le likaroloana tse nyenyane, tse pota-potileng, le tse ajoang hantle, phello ea eona e fokolang e nyenyane 'me litšepe tse joalo li tla ba le ductility e phahameng. Mofuta ona oa tšepe ea tšepe o bitsoa ductile kapa nodular iron kapa spheroidal graphite kapa feela SG iron. Mofuta ona oa graphite o ka finyelloa ka ho eketsa elemental magnesium kapa cerium kapa motsoako oa likarolo tse peli ho tšepe e entsoeng ka ho qhibilihisoa. Magnesium e kenngoa ka bongata ba 0.07 ho 0. 10% e lateloa ke ho eketsoa ha ferro-silicon ho khothalletsa graphitization. Nakong ea ho tiisa, magnesium e thusa ho ajoa ha graphite ho pholletsa le tšepe.
Ductile cast iron e na le karo-karolelano e betere ea boima ba 'mele, machinability e betere le boleng bo phahameng ba tšusumetso. Ho feta moo, thelikarolo tsa tšepe ea ductileli hlahisoa ka mokhoa oa ho lahla moo taolo e ntle ea sebopeho sa karolo e ka finyelloang ha e bapisoa le ho thella. Ka hona, likarolo tse ngata tse kang crank shafts le li-rods tse kopanyang tse hlahisoang hangata ka "drop forging" li ntse li nkeloa sebaka ke li-ductile iron castings.
Melemo ea Resin Coated Sand Shell Mold Casting:
1. Lits'oants'o tse entsoeng ka lehlabathe le koahetsoeng ka lehlabathe ka kakaretso li nepahetse ho feta tsa lehlabathe. Hoa khoneha ho fumana mamello ea + 0,25 mm bakeng sa li-castings tsa tšepe le +0. 35 mm bakeng sa li-castings tsa tšepe tse bohlooho tlas'a maemo a tloaelehileng a ho sebetsa. Tabeng ea hlobo ea likhetla tse mamelloang haufi, motho a ka e fumana ho tloha ho +0.03 ho ea ho +0.13 mm bakeng sa lits'ebetso tse ikhethileng.
2. Sebaka se boreleli se ka fumanoa ka likhetla tsa likhetla. Sena se finyelloa haholo-holo ka lijo-thollo tsa boholo bo botle bo sebelisoang. Mofuta o tloaelehileng oa ho khopama ke oa tatellano ea li-microns tse 3 ho isa ho tse 6.
3. Li-angles tsa moralo, tse tlase ho feta li-castings tsa lehlabathe, li hlokoa ka har'a hlobo ea likhetla. Phokotso ea li-angles tsa moralo e kanna ea ba ho tloha ho 50 ho isa ho 75%, e leng ho bolokang litšenyehelo tsa thepa le litšenyehelo tse latelang tsa mochini.
4. Ka linako tse ling, li-cores tse khethehileng li ka tlosoa ha ho etsoa likhetla. Kaha lehlabathe le na le matla a mangata hlobo e ka etsoa ka tsela eo likoti tse ka hare li ka etsoang ka ho toba ka tlhokahalo ea li-cores tsa khetla.
5. Hape, likarolo tse tšesaane haholo (ho fihlela ho 0.25 mm) tsa mofuta oa lihlooho tsa li-cylinder tse nang le moea o pholileng li ka etsoa habonolo ke ho bōptjoa ha khetla ka lebaka la matla a phahameng a lehlabathe le sebelisetsoang ho bōpa.
6. Permeability ea khetla e phahame 'me kahoo ha ho na khase e kenyelletsoeng.
7. Ho hlokahala hore ho sebelisoe lehlabathe le lenyenyane haholo.
8. Mechine e khoneha habonolo ka lebaka la ts'ebetso e bonolo e amehang ho bopeng likhetla.
Lisebelisoa tse tala bakeng sa Ts'ebetso ea ho Rala ea Lehlabathe le Koaheletsoeng ka Resin:
• Tšepe ea ho Lahlela: Tšepe ea Grey Cast, Tšepe ea Ductile Cast.
• Cast Carbon Steel le Alloy Steel: Low Carbon Steel, Medium Carbon Steel le High Carbon Steel ho tloha AISI 1020 ho AISI 1060; 20CrMnTi, 20SiMn, 30SiMn, 30CrMo, 35CrMo, 35SiMn, 35CrMnSi, 40Mn, 40Cr, 42Cr, 42CrMo... joalo-joalo ka kopo.
• Cast Stainless Steel: AISI 304, AISI 304L, AISI 316, AISI 316L le sehlopha se seng sa tšepe e sa hloekang.
• Lisebelisoa tsa Aluminium.
• Koporo le Koporo.
• Lisebelisoa le Maemo a mang ha a koptjoa
▶ Bokhoni ba ho Rala lehlabathe le koahetsoeng ka Resin:
• Boholo ba Boholo: 1,000 mm × 800 mm × 500 mm
• Boima ba Boima: 0,5 kg - 100 kg
• Bokhoni ba Selemo: Lithane tse 2,000
• Mamello: Ka Kopo.
▶ Ho hlahlobaResin Coated Lehlabathe Castings:
• Spectrographic and manual quantitative analysis
• Tlhahlobo ea metallographic
• Tlhahlobo ea thata ea Brinell, Rockwell le Vickers
• Tlhahlobo ea thepa ea mechine
• Teko ea tšusumetso e tlase le e tloaelehileng ea mocheso
• Tlhahlobo ea bohloeki
• tlhahlobo ea UT, MT le RT
▶ Mekhoa ea ho Lahlela Lehlabathe le Apesitsoeng ka Resin:
✔ Ho Etsa Mehlala ea Tšepe. Lehlabathe la resin le koahetsoeng esale pele le hloka ho futhumatsoa ka har'a lipaterone, kahoo lipaterone tsa tšepe ke lisebelisoa tse hlokahalang ho etsa likhetla tsa ho bopa.
✔ Ho etsa Mould oa Lehlabathe o koahetsoeng esale pele. Ka mor'a ho kenya mekhoa ea tšepe mochine oa ho bōpa, lehlabathe la resin le koahetsoeng pele le tla thunngoa ka har'a mekhoa, 'me ka mor'a ho futhumatsa, ho roala ha resin ho tla qhibiliha, ebe hlobo ea lehlabathe e fetoha khetla e tiileng ea lehlabathe le li-cores.
✔ Ho qhibiliha tšepe ea Cast. Ho sebelisoa libono tsa induction, lisebelisoa li ne li tla qhibiliha hore e be mokelikeli, ebe likarolo tsa lik'hemik'hale tsa tšepe ea metsi li lokela ho hlahlojoa ho bapisa lipalo le liperesente tse hlokahalang.
✔ Ho Tšela Tšepe. Ha tšepe e qhibilihisitsoeng e finyella litlhoko, joale e tla tšeloa ka har'a hlobo ea likhetla. Ho ipapisitsoe le litlhaku tse fapaneng tsa moralo oa ho lahla, hlobo ea likhetla li tla patoa lehlabatheng le letala kapa li phuthetsoe ka mekhahlelo.
✔ Ho thunya ho thunya, ho sila le ho hloekisa. Ka mor'a ho pholile le ho tiisa li-castings, li-rosers, liheke kapa tšepe e eketsehileng li lokela ho khaoloa le ho tlosoa. Ebe lisebelisoa tsa tšepe li tla hloekisoa ka lisebelisoa tsa ho penta lehlabathe kapa mechine e thunyang. Ka mor'a ho sila hlooho ea gating le mela ea ho arohana, likarolo tse phethiloeng tsa ho lahla li ne li tla tla, li emetse lits'ebetso tse ling ha ho hlokahala.
▶ Mokhoa oa ka mor'a ho bapala
• Deburring & Cleaning
• Ho thunngoa ha Lehlabathe / Ho phunya lehlabathe
• Kalafo ea Mocheso: Ho tloaeleha, ho tima, ho halefa, ho chesa, ho etsa Nitriding
• Phekolo ea Bokaholimo: Passivation, Andonizing, Electroplating, Hot Zinc Plating, Zinc Plating, Nickel Plating, polishing, Electro-Polishing, Painting, GeoMet, Zintec.
• CNC Machining: Ho Fetola, Ho cheka, ho Lathing, Ho cheka, Ho Honing, Ho Sila.
▶ Lebaka Leo U Khethang KatengMothehi oa RMCBakeng sa Likaroloana tsa ho Lahlela Mould Shell?
✔ Ho nepahala le tšebeliso e phahameng ea thepa. U tla fumana lihlahisoa tsa marang-rang kapa tse haufi-le-net-shape ka mor'a ho etsa likhetla, ho itšetlehile ka litlhoko tsa basebelisi ba ho qetela, ho ke ke ha e-ba le ts'ebetso ea machining kapa e nyenyane haholo e hlokahalang.
✔ Ts'ebetso e ntle ea bokaholimo. Ka lebaka la lisebelisoa tsa theknoloji e ncha ea ho bopa, li-castings tse tsoang ho likhetla li na le sebaka se setle haholo le se phahameng sa ho nepahala.
✔ Khetho e ntle e leka-lekaneng ha e bapisoa le ho lahla lehlabathe le matsete. Ho etsa likhetla ho na le ts'ebetso e ntle le bokaholimo ho feta ho lahla lehlabathe, ha ho na le litšenyehelo tse tlase haholo ho feta ho etsa matsete ka nepo.
