unitat 2 1r eso
TRANSCRIPT
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UNITAT 2L’AULA DE TECNOLOGIA. EINES I OPERACIONS
Joan Pons Crespo1r ESO
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LES OPERACIONS BÀSIQUES
• Marcar
• Tallar
• Desbastar, ajustar i polir
• Mesurar i verificar
• Foradar
• Subjectar
• Muntar i desmuntar
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MARCAR
El marcatge consisteix a dibuixar sobre el material els contorns de la peça que volem obtenir.
MARCAR
ASSENYALADORS
Compàs de puntes
Contrapunxó
Punta de marcar
Llapis
AUXILIARS
Goniòmetre
Escaire de fuster
Regle metàl·lic
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MARCAR: Assenyaladors
PUNTA DE MARCAR
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MARCAR: Assenyaladors
RETOLADOR
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MARCAR: Assenyaladors
COMBINACIÓ DE RETOLADOR I PUNTA DE MARCAR
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MARCAR: Assenyaladors
CONTRAPUNXÓ
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MARCAR: Assenyaladors
COMPÀS DE PUNTES
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MARCAR: Auxiliars
REGLE METÀL·LIC
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MARCAR: Auxiliars
ESCAIRE DE FUSTER
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MARCAR: Auxiliars
GONIÒMETRE
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TALLAR
El tall consisteix a obtenir peces amb la forma i les mides desitjades partint de materials de mides més grans.
TALLAR
SERRA
CÚTERXerrac
Serra de vogir
Serra d’arc
TISORES
De xapa
D’electricista
D’oficina
ALICATES DE TALL
Serra de beina
Serra de biaixos
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TALLAR: Tisores
TISORES D’OFICINA
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TALLAR: Tisores
TISORES D’ELECTRICISTA
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TALLAR: Tisores
TISORES DE XAPA
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TALLAR: Tisores
TISORES DE XAPA
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TALLAR: Alicates de tall
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TALLAR: Xerrac
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TALLAR: Serra de beina
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TALLAR: Serra de marqueteria
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TALLAR: Serra de biaixos
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TALLAR: Serra d’arc
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FORADAR
Dos tipus de forats: forat passant, que travessa el material; i forat cec, que no travessa el material.
FORADAR
TREPANT
De columna
De sobretaula
Portàtil
BARRINA
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FORADAR: Barrina
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FORADAR: Trepant portàtil
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FORADAR: Trepant de sobretaula
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FORADAR: Trepant de columna
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FORADAR: Broques
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DESBASTAR, AJUSTAR I POLIR
Desbastar: aproximar-se a les mides finals. Ajustar: donar les dimensions més exactes possibles. Polir: deixar les superfícies amb un acabat fi.
DESBASTAR
LLIMA
PAPER DE VIDRE
RASPA
AJUSTAR
POLIRPAPER DE VIDRE
TELA ESMERIL
CARDA
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DESBASTAR, AJUSTAR I POLIR
LLIMA
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DESBASTAR, AJUSTAR I POLIR
RASPA
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DESBASTAR, AJUSTAR I POLIR
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DESBASTAR, AJUSTAR I POLIR
CARDA
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DESBASTAR, AJUSTAR I POLIR
PAPER DE VIDRE
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DESBASTAR, AJUSTAR I POLIR
TELA ESMERIL
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SUBJECTAR
ALICATES
Alicates Universals
CARGOL DE BANC
SERJANT
Alicates Boca Plana
Alicates Boca Rodona
Alicates Bec de Lloro
Alicates de Pressió
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SUBJECTAR: Cargol de banc
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SUBJECTAR: Serjant
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SUBJECTAR: Serjant
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SUBJECTAR: Alicates
ALICATES UNIVERSALS
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SUBJECTAR: Alicates
ALICATES BOCA PLANA
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SUBJECTAR: Alicates
ALICATES BOCA RODONA
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SUBJECTAR: Alicates
ALICATES DE BEC DE LLORO
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SUBJECTAR: Alicates
ALICATES DE PRESSIÓ
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MESURAR I VERIFICAR
REGLE METÀL·LIC
CINTA MÈTRICA
GONIÒMETRE
ESCAIRE
Mesurar: mirar que les dimensions siguin les dels plànols.Verificar: comprovar un valor (exemple: angle recte o no).
PEU DE REI
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MESURAR I VERIFICAR
PEU DE REI
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MUNTAR I DESMUNTAR
TALLAR
Punta planaTORNAVÍS
CLAU
Clau anglesa
Clau Allen
Clau plana
MARTELL
Punta estrella
Maça de niló
Martell de bola
Martell de pena
Clau colzada
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MUNTAR I DESMUNTAR: Martell
MARTELL DE PENA
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MUNTAR I DESMUNTAR: Martell
MARTELL DE BOLA
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MUNTAR I DESMUNTAR: Martell
MAÇA DE NILÓ
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MUNTAR I DESMUNTAR: Tornavís
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MUNTAR I DESMUNTAR: Tornavís
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MUNTAR I DESMUNTAR: Claus
CLAU PLANA O FIXA
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MUNTAR I DESMUNTAR: Claus
CLAU D’ESTRELLA
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MUNTAR I DESMUNTAR: Claus
CLAU COLZADA
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MUNTAR I DESMUNTAR: Claus
CLAU ALLEN
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MUNTAR I DESMUNTAR: Claus
CLAU ANGLESA