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Once the graphics are finalized, manufacturers move to the creation of the tin boxes themselves. The process involves cutting and shaping sheets of steel, which are coated with a layer of tin to prevent rusting and ensure durability. The pieces are then pressed into shape and assembled—usually featuring a hinged lid and a sturdy handle, reminiscent of the lunch boxes popularized in the mid-20th century.
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Una vez que se aprueba la inspección, se procede al mecanizado en sí. Este se realiza en tornos o fresadoras especializadas. El objetivo principal del mecanizado es restaurar la superficie de frenado a su forma original, eliminando cualquier irregularidad que pueda haber surgido por el desgaste normal. El acabado adecuado de la superficie es esencial, ya que una superficie rugosa puede causar un frenado ineficiente y aumentar el desgaste de las pastillas de freno.
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Regular inspection and maintenance of brake shoes and drums are essential to ensure optimal performance. Over time, the friction material on brake shoes can wear down; the drums can become scored or distorted due to excessive heat or wear. Both scenarios can compromise the effectiveness of the braking system, making it crucial for fleet operators to adhere to routine maintenance schedules.
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