Release agent for hot-forging die, application method for same, and application device

An application method for a release agent for a hot-forging die containing micronanobubbles, the method comprising the steps of:

• filling a storage unit provided with a bubble generator/bubble generators and an agitator/agitators with a release agent undiluted solution;
• generating the micronanobubbles in the release agent undiluted solution by the bubble generator(s);
• agitating the release agent undiluted solution by the agitator(s) thereby dispersing the micronanobubbles generated in the release agent undiluted solution uniformly to obtain the release agent for the hot-forging die;
• supplying the release agent to a spraying unit/spraying units;
• and
• spraying the release agent onto the hot-forging die by the spraying unit(s),
• wherein,
• the diameters of the micronanobubbles are greater than or equal to 0.1 μm and less than or equal to 200 μm,
• the release agent is sprayed onto the hot-forging die in a shape of particles having a Sauter mean diameter of greater than or equal to 10 μm and less than or equal to 30 μm,
• the average thickness of a release agent layer formed of the release agent applied to the hot-forging die is greater than or equal to 2.3 μm and less than or equal to 15 μm,
• in the generating step,
• air is supplied to the bubble generator(s) with an air supply pressure of greater than or equal to 0.03 MPa and less than or equal to 0.3 MPa, and
• the supply amount of the micronanobubbles by the bubble generator(s) is greater than or equal to 1 L/min and less than or equal to 100 L/min, and
• in the supplying step,
• the supply pressure to the release agent is greater than or equal to 0.5 MPa and less than or equal to 2.0 MPa, and
• the atomizing air pressure supplied to the spraying unit(s) is greater than or equal to 0.20 MPa and less than or equal to 0.80 MPa.

An application method for a release agent for a hot-forging die containing micronanobubbles, the method comprising the steps of:

• filling a storage unit provided with a bubble generator/bubble generators and an agitator/agitators with a release agent undiluted solution;
• generating the micronanobubbles in the release agent undiluted solution by the bubble generator(s);
• agitating the release agent undiluted solution by the agitator(s) thereby dispersing the micronanobubbles generated in the release agent undiluted solution uniformly to obtain the release agent for the hot-forging die;
• supplying the release agent to a spraying unit/spraying units;
• and
• spraying the release agent onto the hot-forging die by the spraying unit(s),
• wherein,
• the diameters of the micronanobubbles are greater than or equal to 0.1 μm and less than or equal to 200 μm,
• the content of the micronanobubbles is greater than or equal to 0.1 vol % and less than or equal to 10 vol %,
• the release agent is sprayed onto the hot-forging die in a shape of particles having a Sauter mean diameter of greater than or equal to 10 μm and less than or equal to 30 μm,
• the average thickness of a release agent layer formed of the release agent applied to the hot-forging die is greater than or equal to 2.3 μm and less than or equal to 15 μm,
• in the generating step,
• air is supplied to the bubble generator(s) with an air supply pressure of greater than or equal to 0.03 MPa and less than or equal to 0.3 MPa, and
• the supply amount of the micronanobubbles by the bubble generator(s) is greater than or equal to 1 L/min and less than or equal to 100 L/min, and
• in the supplying step,
• the supply pressure to the release agent is greater than or equal to 0.5 MPa and less than or equal to 2.0 MPa, and
• the atomizing air pressure supplied to the spraying unit(s) is greater than or equal to 0.20 MPa and less than or equal to 0.80 MPa.

An application method for a release agent for a hot-forging die, comprising spraying the release agent onto the hot-forging die,

• wherein,
• the release agent contains dispersed micronanobubbles,
• the diameters of the micronanobubbles are greater than or equal to 0.1 μm and less than or equal to 200 μm, and
• the content of the micronanobubbles is greater than or equal to 0.1 vol % and less than or equal to 10 vol %.