Condiciones de apriete de pernos

Condiciones de apriete

• Se utilizan los siguientes pernos.

Par de apriete

N·m (kgf-cm)

196,0

(2000)

147,0

(1500)

98,0

(1000)

49,0

(500)

M10×35 mm M12, M14, M16×45 mm Perno estándar

M16

M14

M12

M10

Perno estándar: Tipo de resistencia 4,8

Tipo de alta ductilidad 12,9

Explicación del tipo de resistencia

4,8

Límite de elasticidad del perno (80% de resistencia de ductilidad) 32 kgf/mm2 (45000 psi)

Resistencia dúctil del perno 40 kgf/mm2 (56000 psi)

2) Tiempo de apriete

Un tiempo de apriete mayor da como resul-

tado un par de apriete incrementado. Un

apriete excesivo, no obstante, no añade

valor y reduce la vida útil de la herramienta.

0,0 0,5 1,0 1,5 2,0 2,5 3,0 Tiempo de apriete (s.)

3) Diámetros diferentes de perno

El tamaño del diámetro de perno afecta al

par de apriete.

Par de apriete

N·m (kgf-cm)

196,0

(2000)

147,0

(1500)

98,0

(1000)

49,0

(500)

M8, M10×35 mm M12×45 mm Perno de alta ductilidad

M12

M10

M8

En general, al aumentar el diámetro de

perno, asciende el par de apriete.

4) Condiciones de apriete

El par de apriete variará, incluso con el mismo perno, según el coeficiente del tipo, longitud y par (el coeficiente fijo indicado por el fabricante en el proceso de producción).

El par de apriete variará, incluso con el mismo material del perno (ej. acero), en función del acabado de la superficie.

El par se reduce mucho cuando el perno y la tuerca empiezan a girar juntos.

5) Juego del enchufe

El par disminuye en la medida en que se

utiliza para apretar un perno la configura-

ción de seis caras del enchufe de tama-

0,0 0,5 1,0 1,5 2,0 2,5 3,0 Tiempo de apriete (s.)

PernoArandela

Placa de acero grosor 10 mm (3/8")

Tuerca Arandela Arandela de resorte

 

ño incorrecto.

6)

Interruptor (disparador de control de velo-

 

cidad variable)

 

La torsión baja cuando se utiliza la unidad

 

con un interruptor no presionado comple-

 

tamente.

7)

Efecto del adaptador de conexión

 

El par de apriete disminuirá a través del

 

uso de una junta universal o un adaptador

 

de conexión.

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Panasonic EY7541 Condiciones de apriete de pernos, Condiciones de apriete Se utilizan los siguientes pernos

EY7541 specifications

The Panasonic EY7541 is a versatile and powerful cordless impact wrench designed for professionals and enthusiasts seeking reliability and performance in their tools. With a robust build and advanced technology, this tool stands out in the competitive landscape of power tools, particularly for automotive, construction, and industrial applications.

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