The embodiments herein provide a portable heat treatment machine comprising a forge body having a burn chamber surrounded by a housing, shell, or forge body. The openings are provided at the front side and at the back side of the forging body to move a forging material in and out of the burn chamber. The openings of the burn chamber and the forge body are covered with a sliding door. The sliding doors are opened to the desired degree to prevent a heat loss. A tab is provided to limit the movement of the sliding doors. Any desired off-shelf burner is inserted through a burner insert hole provided at the side of the forge body and is held and supported by a bracket attached to the forge body. Several legs are removably attached to the forge body to adjust the height of the body.

The embodiments herein provide a portable heat treatment machine comprising a forge body having a burn chamber surrounded by a housing, shell, or forge body. The openings are provided at the front side and at the back side of the forging body to move a forging material in and out of the burn chamber. The openings of the burn chamber and the forge body are covered with a sliding door. The sliding doors are opened to the desired degree to prevent a heat loss. A tab is provided to limit the movement of the sliding doors. Any desired off-shelf burner is inserted through a burner insert hole provided at the side of the forge body and is held and supported by a bracket attached to the forge body. Several legs are removably attached to the forge body to adjust the height of the body.

Multi-chamber furnace for vacuum carburizing and quenching of gears, shafts, rings and similar components has at least two process chambers connected in parallel, with a continuous feeding mechanism for individual workpieces. Those chambersthe first one being a heating chamber, the second being a carburizing chamber and the third one diffusion chamberare configured in a vertical arrangement, placed in a shared vacuum space with gas-tight division, whereas at the ends of each chamber there are incorporated heating chambers with thermal insulation, with a graphite heating system and stepping feeding mechanism incorporated in the core for the purpose of continuous feeding of individual workpieces. At the ends of those chambers the construction incorporates transport chambers featuring loading and unloading systems X-Y enabling cooperation with individual process chambers through thermal and gas-tight doors installed in chamber ends, while external access to the transport chambers is ensured through loading and unloading locks.

Multi-chamber furnace for vacuum carburizing and quenching of gears, shafts, rings and similar components has at least two process chambers connected in parallel, with a continuous feeding mechanism for individual workpieces. Those chambersthe first one being a heating chamber, the second being a carburizing chamber and the third one diffusion chamberare configured in a vertical arrangement, placed in a shared vacuum space with gas-tight division, whereas at the ends of each chamber there are incorporated heating chambers with thermal insulation, with a graphite heating system and stepping feeding mechanism incorporated in the core for the purpose of continuous feeding of individual workpieces. At the ends of those chambers the construction incorporates transport chambers featuring loading and unloading systems X-Y enabling cooperation with individual process chambers through thermal and gas-tight doors installed in chamber ends, while external access to the transport chambers is ensured through loading and unloading locks.

A permanent magnet-type molten metal stirring device includes: a support body that can suppress heat transfer from molten metal; a magnetic field unit provided above the support body and including a permanent magnet allowing magnetic force lines to vertically extend in the molten metal; and a drive unit provided below the support body and driving the molten metal with an electromagnetic force generated by the magnetic force lines and current allowed to flow through the molten metal by the drive unit. The drive unit includes: a cylindrical drive main body mounted on a lower portion of the support body and including a passage formed therein and laterally extending in a longitudinal direction, and a pair of electrodes provided at positions opposed to each other along a width direction via the passage, the pair of electrodes allowing current intersecting the magnetic lines of force in the molten metal.

A permanent magnet-type molten metal stirring device includes: a support body that can suppress heat transfer from molten metal; a magnetic field unit provided above the support body and including a permanent magnet allowing magnetic force lines to vertically extend in the molten metal; and a drive unit provided below the support body and driving the molten metal with an electromagnetic force generated by the magnetic force lines and current allowed to flow through the molten metal by the drive unit. The drive unit includes: a cylindrical drive main body mounted on a lower portion of the support body and including a passage formed therein and laterally extending in a longitudinal direction, and a pair of electrodes provided at positions opposed to each other along a width direction via the passage, the pair of electrodes allowing current intersecting the magnetic lines of force in the molten metal.

A permanent magnet-type molten metal stirring device includes: a support body that can suppress heat transfer from molten metal; a magnetic field unit provided above the support body and including a permanent magnet allowing magnetic force lines to vertically extend in the molten metal; and a drive unit provided below the support body and driving the molten metal with an electromagnetic force generated by the magnetic force lines and current allowed to flow through the molten metal by the drive unit. The drive unit includes: a cylindrical drive main body mounted on a lower portion of the support body and including a passage formed therein and laterally extending in a longitudinal direction, and a pair of electrodes provided at positions opposed to each other along a width direction via the passage, the pair of electrodes allowing current intersecting the magnetic lines of force in the molten metal.

A permanent magnet-type molten metal stirring device includes: a support body that can suppress heat transfer from molten metal; a magnetic field unit provided above the support body and including a permanent magnet allowing magnetic force lines to vertically extend in the molten metal; and a drive unit provided below the support body and driving the molten metal with an electromagnetic force generated by the magnetic force lines and current allowed to flow through the molten metal by the drive unit. The drive unit includes: a cylindrical drive main body mounted on a lower portion of the support body and including a passage formed therein and laterally extending in a longitudinal direction, and a pair of electrodes provided at positions opposed to each other along a width direction via the passage, the pair of electrodes allowing current intersecting the magnetic lines of force in the molten metal.