Horizontal Heat Treatment Device

摘要

A horizontal heat treatment device continuously subjects an untreated continuous flat object to heat treatment while horizontally transferring the untreated object within a heat treatment chamber. Seal chambers are interconnected to the untreated-object loading opening and treated-object unloading opening of the heat treatment chamber. A passage is connected to an opening of each of the seal chambers, the opening located on the side opposite the heat treatment chamber. The untreated-object passage loading opening interconnected to the untreated-object seal chamber loading opening and the treated-object passage unloading opening interconnected to the treated-object seal chamber unloading opening are the untreated-object loading opening and treated-object unloading opening of the heat treatment device. A pair of gas ejection nozzles are provided at upper and lower positions of the passages. The nozzles eject gas in specific directions, and the nozzle openings have a specific shape, a direction, and a length.

主权项

1. A horizontal heat treatment device that continuously heat-treats a continuous flat object, while transporting the object within a heat treatment chamber in a horizontal direction,
wherein a seal chamber connected to an exhaust fan is connected to each of object loading opening and unloading opening of the heat treatment chamber, and the seal chamber is configured so that the object can pass through the seal chamber in the horizontal direction, a passage having a rectangular cross-section is connected to an opening of the object loading opening and unloading opening of each seal chamber located on a side opposite to the heat treatment chamber, and the passage is configured so that the object can pass through the passage in the horizontal direction, the object loading opening of the passage connected to the seal chamber object loading opening is an object loading opening of the heat treatment device, and the object unloading opening of the passage connected to the seal chamber object unloading opening is an object unloading opening of the heat treatment device, a pair of nozzles configured to eject gas is provided at upper and lower positions of each passage, a gas ejection opening of each nozzle has a rectangular shape, in each passage, the pair of nozzles provided in the passage ejects the gas toward a center in the vertical direction of the passage, and toward the object loading opening or the object unloading opening of the heat treatment device included in the passage, in each passage, the gas ejection opening of each nozzle provided in the passage is parallel to a long-side direction of the loading opening and the unloading opening of the object of the passage, and has a length equal to a length of the long side, and in each passage, a distance d between the gas ejection opening of the pair of nozzles provided in the passage and the object loading opening or the object unloading opening of the heat treatment device included in the passage, and a height Dn of the passage satisfy a relation of 2≦d<0.75 Dn.