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Hàn khҳc phөc chi tiӃt bӏ nӭt, gãy, hӓng - Hàn nóng chҧy: Hӗ TXDQJKjQNKtKjQÿҳp - Hàn áp lӵc: TiӃp xúc, cao tҫQÿLӇm - Hàn vҧy Sӱ dөQJ KjQ ÿҳS ÿӇ phөc hӗi chi tiӃt máy mӝW SKѭѫQJ SKiS Uҿ tiӅn mà khҧ QăQJOjPYLӋc cӫa chi tiӃt không thua chi tiӃt mӟi mҩy ¾ - Mҥ ÿLӋn: Cu, Ni, Cr, Zn, Cd, Fe, Pb, Sn, kim loҥi quí - Mҥ hoá hӑc HӳXFѫ%ӑc cao su, phӫ nhӵDVѫQ 9{Fѫ%rWRQWUiQJPHQ - Mҥ nhúng kim loҥi: Chì, nhôm, kӁm, thiӃc, Cr @ Bài 4: LÀM 6ҤCH VÀ ,ӆ075$&+,7,ӂ7 7KͥLJLDQK/77+h) : - : ¾ 3KѭѫQJSKiSUӱDQJRjLÿѭӧFVӱGөQJSKәELӃQWURQJFiF[ѭӣQJVӱDFKӳDKLӋQQD\Oj GQJV~QJSKXQQѭӟFYzLSKXQ GѭӟLiSVXҩWFDR7LDQѭӟFiSVXҩWFDREҳQYjREӅPһW QJRjLFiFFөPWәQJWKjQKVӁOjPVҥFKFiXEҭQEiPQJRjLNKiKLӋXTXҧQӃXGQJQѭӟF QyQJӣQKLӋWÿӝWUrQ0 &WKuKLӋXTXҧYjQăQJVXҩWUӱDVӁWăQJKѫQNKLVӱGөQJQѭӟFӣ QKLӋWÿӝWKѭӡQJ 0ӝWSKѭѫQJSKiSUӱDNKiFFNJQJNKiKLӋXTXҧOjVӱGөQJWKLӃWEӏ làm VҥFKEӅPһWEҵQJWLDÿiOҥQK&22 HRҥWÿӝQJWKHRQJX\rQOêQpQiSOӵFEҳQUDFiFWLD ÿi 37 .ͿWKX̵WFKXQJRWR Hoàng Thanh Xuân 2010 khô (CO2 EăQJӣQKLӋWÿӝ-79 & YӟLWӕFÿӝSKKӧSQKҵPWiFÿӝQJYjRFiFSKkQWӱJk\ EҭQOjPFiFSKkQWӱ Qj\ FR QJyWWӭFWKu ERQJWiFKUDNKӓLEӅ PһWWiFGөQJWUҧOҥL Vӵ VҥFKVӁViQJEyQJQKѭQJX\rQEҧQYӕQFyFӫDEӅPһWWKLӃWEӏYұWGөQJ%rQFҥQKÿyWLD ÿi OҥQK Wӯ Pi\ NK{QJ OjP WUҫ\ ViW ELӃQ GҥQJ Yj Kѭ KҥL EӅ PһW WiF GөQJ, Yu ÿk\ Oj YD FKҥPPӅP.KRҧQJWKӡLJLDQ[ҧ\UDYDFKҥPFӵFQKDQKGRYұ\VӵWUX\ӅQOҥQKFKѭDNӏS ÿӃQFiFSKkQWӱWUrQEӅPһWWiFGөQJQrQNK{QJJk\UDFiFWiFQKkQYӅQKLӋWYà không ҧQKKѭӣQJWӟLEӝSKұQPi\{W{ ¾ Ĉk\OjSKѭѫQJSKiSUӱDSKәELӃQQKҩWWURQJFiF[ѭӣQJVӱDFKӳDQKӓGөQJFөJӗP JLҿODXEjQFKҧLFQJYӟLGҫXGLHVHOKRһFGXQJGӏFK1$2+7UѭӟFWLrQQJkPFKLWLӃWYjR GҫXUӱDKRһFGXQJGӏFKUӱDNKRҧQJSK~WVDXÿyGQJJLҿKRһFEjQFKҧLFӑVҥFKFiF FKҩW EҭQ EiP WUrQ EӅ PһW FNJQJ QKѭ WURQJ FiF QJ} QJiFK FӫD FKL WLӃW UӗL UӱD OҥL EҵQJ QѭӟFҩPYjGQJNKt QpQWKәL NK{ 9ӟLFiF ÿѭӡQJGҫX WURQJ WKkQ Pi\WURQJFiFWUөF FҫQSKҧLWK{QJUӱDEҵQJQѭӟFGXQJGӏFKUӱDVDXÿyWKәLEҵQJNKtQpQNK{ ¾ 9ӟLFiXEҭQOjPXӝLWKDQEiPWUrQQҳS[LODQKSLVWRQ[XSDSYjWKjQKӕQJ[ҧ«QJѭӡL ta FyWKӇVӱGөQJWKLӃWEӏSKXQFiWFiFKҥWFiWWKҥFKDQKUҩWQKӓÿѭӧFSKXQEҵQJNKtQpQ iSVXҩWFDROrQEӅPһWFKLWLӃWVӁFyWiFGөQJOjPVҥFKUҩWQKDQKYjKLӋXTXҧ ¾ Quan sát bҵng mҳt vӃt nӭt, lӛ thӫng, chi tiӃt bӏ biӃn dҥng cong, vênh, xoҳn, Quan sát bҵng thiӃt bӏ quang hӑFQKѭ : kính lúp, kính hiӇn vi 7KѭӡQJGQJÿӇ quan sát khuyӃt tұt rãnh then, quan sát sӵ ăQ khӟp cӫDFiFEiQKUăQJ Hình 38 KiӇPWUDPzQUăQJEҵQJGѭӥQJÿRUăQJ Hình 39 KiӇm tra ÿӝ phҷng cӫa mһt máy bҵQJWKѭӟc thҷQJYjWKѭӟc nhét 38 .ͿWKX̵WFKXQJRWR Hoàng Thanh Xuân 2010 Hình 40 KiӇm tra mһt phҷng bҵng khe hӣ khoҧng sáng Yjÿӝ ÿҧREiQKÿjFӫa oto Hình 41 .LӇPWUDNKRҧQJFiFKJLӳDQҳSFD-pô FiQKWUѭӟF FӫD[H/H[XVVӱGөQJPi\ÿӏQKFӥGLJLWDO ¾ Dùng dөng cө ÿRÿӇ [iFÿӏQKNtFKWKѭӟFWKѭӟc kҽSSDQPHÿӗng hӗ ÿROӛÿR chiӅXVkXFăQOiPNJLYҥch, bàn rà Sӱ dөng dөng cө chuyên dùng: ca líp, loҥLGѭӥQJFRQOăQWUөc chuҭn, loҥi vòng chuҭn 39 .ͿWKX̵WFKXQJRWR Hoàng Thanh Xuân 2010 KiӇm tra mòn trөc khuӹu: - 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