PURPOSE: To effectively form a lubrication agent by providing a metal thin film forming means and a spraying means for spraying the vapor of the lubrication agent to a magnetic layer within a vacuum tank to produce a magnetic recording medium.
CONSTITUTION: The magnetic recording medium manufacturing apparatus is provided with a first vacuum tank 1a to form a magnetic layer and a second vacuum tank 1b to spray the lubrication agent which are coupled through an communicating path. In the first vacuum tank 1a, a cooling can roll 2, ad absorbing plate 3, a crucible 4, a magnetic metal 5 and an oxygen gas outlet nozzle 6 are provided toward the center of the roll 2. The crucible 4 is full of magnetic metal 5 such as Co and Co-Ni alloy, a supply roll 7a is provided in the first vacuum tank 1a while a takeup roll 7b in the second vacuum tank 1b and ths supply roll 7a is wound by non-magnetic carrier 8 along the cooling can roll 2. The tape is guided to the second vacuum tank 1b through the communicating path 1c in contact with the guide roller, wound along the heating can roll 9 and is then taken up by the takeup roll 7a. Thereby, the magnetic recording medium can be obtained economically.
YOSHIDA OSAMU
MIZUNOYA HIROHIDE
SHIGA AKIRA
