JPH063923U - Carbon conveyor belt for high temperature continuous furnace - Google Patents

Abstract

(57) [Summary] [Purpose] A component of a conveyor belt for a high-temperature continuous furnace, which is intended to give a high tensile strength to a rod, which has a large tension. [Structure] Carbon fiber reinforced carbon that makes the rod of the conveyor belt is aligned with the fiber direction of the conveyor belt in a direction substantially perpendicular to the entrainment direction of the conveyor belt, and the shearing force is applied to the rod almost at right angles during belt operation. It is characterized in that the rod can have a right-angled shear stress.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a conveyor belt for a high temperature continuous furnace using carbon fiber reinforced carbon (CFRC) or graphite components.

[0002]

[Prior art]

 When metal products are processed at high temperature in a continuous furnace, an endless chain conveyor belt is used to convey the metal products in the furnace. When such a conveyor belt is exposed to high temperatures in a furnace, its components are preferably made of carbon fiber reinforced carbon or graphite in order to give the conveyor belt excellent heat resistance and tensile strength.

Such conveyor belts are described in Japanese Utility Model Laid-Open No. 62-98614, Japanese Utility Model Laid-Open No. 121010, and Japanese Patent Laid-Open No. 1-207464.

A conveyor belt of this type is a transverse direction (hereinafter, simply referred to as “longitudinal direction”) in which a belt moves (a direction indicated by an arrow in the accompanying drawings, hereinafter, simply referred to as “longitudinal direction”). A large number of rods (referred to as reference numeral 1 in the accompanying drawings) that extend in the “lateral direction” and are arranged in the longitudinal direction with a certain space between each other. It is composed of a large number of components connected to each other and arranged in a hinge (for example, a flap member indicated by reference numeral 2 in the accompanying drawings).

[0005]

[Problems to be solved by the device]

 When the conveyor belt circulates in the furnace, the laterally-arranged rods are subjected to a particularly high tension, that is to say a shear force of approximately right angles, so that the tensile strength of this part, that is to say the shear stress of approximately right angles, must be ensured in particular. I have to. If the rod is deformed even a little, the entire conveyor belt will meander, and normal furnace operation will not be possible.

Therefore, it is desired to give the rod particularly high tensile strength so that the conveyor belt can withstand long-term use.

[0007]

[Means for Solving the Problems]

 In this invention, the carbon fiber-reinforced carbon fibers forming the rod connecting the components of the conveyor belt are aligned in the lateral direction.

[0008]

【Example】

 A flap member 2 which is a solid graphite plate and has a through hole 3 and a concave portion 2'for connecting and a convex portion 2 "is vertically arranged, and carbon fiber reinforced carbon is formed in the through hole 3. The flap member 2 was connected in a hinge shape through the rod 1 extending in the lateral direction.The both ends of the rod 1 were fixed to the flap member 2 with a carbon-based adhesive.

The rod 1 described above was manufactured as follows. A large number of high-strength carbon fibers with a diameter of about 7 μm are aligned so that their fiber directions are parallel to each other, and placed in a split mold having a rod-shaped cavity, which is coated with a phenol resin, which is a carbon-based resin adhesive. Then, the mold was pressed to fix the fibers to each other.

Next, this was removed from the mold, and the obtained rod-shaped carbon fiber preform having a diameter of 3 mm was heat-treated at 300 ° C. to infusibilize the adhesive. Subsequently, this was heat-treated at 1000 ° C. in an inert atmosphere furnace to be carbonized.

A conveyor belt according to the present invention having a width of 15 cm and a length of 26 m, which is formed by connecting a large number of the above-mentioned graphite flaps 2 with the above-mentioned rod 1, is installed in a furnace in a N ₂ gas atmosphere at 2800 ° C. Used in circulation. The conveyor belt did not meander during use and was able to operate normally at all times.

[0012]

[Effect of device]

 As described above, according to the wood design, the fiber directions of the carbon fiber reinforced carbon forming the rod 1 are aligned in the lateral direction, so that the rod is almost perpendicular to the rod that is being operated during the operation of the conveyor belt. The shear stress that can withstand the shearing force is maintained, and it does not deform at all under high shearing force and high temperature. Therefore, the entire conveyor belt has an excellent effect that it can be operated for a long time without trouble.

[Brief description of drawings]

FIG. 1 is a plan view of a part of a conveyor belt according to the present invention.

FIG. 2 is a side view of FIG.

[Explanation of symbols]

 1-Rod 2-Flap member 2'-Recessed connection part 2 "-Protruded part connection part 3-Flap member hole

Claims (1)

[Scope of utility model registration request] 1. A conveyor belt for a high temperature continuous furnace made of carbon fiber reinforced carbon or graphite, which is arranged at intervals in a direction perpendicular to a longitudinal direction in which the conveyor belt moves to connect its components. A carbon conveyor belt for a high temperature continuous furnace, characterized in that the carbon fibers of a rod that becomes carbon fiber reinforced carbon are aligned in the above-mentioned right angle direction.