Roller furnace

Abstract

The invention discloses a rolling rod furnace which comprises rolling rods and rolling rod seats. The rolling rod seats are fixed onto a furnace body and are positioned on the outer sides of heat-insulation regions on two sides of a working region of the rolling rod furnace; rolling rod holes are formed in the rolling rod seats; two ends of each rolling rod penetrate the rolling rod holes of the corresponding rolling rod seats to be movably connected with the rolling rod seats; the sizes of gaps between the adjacent rolling rods in the working region of the rolling rod furnace range from 3mm to 4mm. The diameters of sections, which are positioned in the working region of the rolling rod furnace, of the rolling rods are larger than the diameters of sections, which are positioned in the heat-insulation regions, of the rolling rods, and the diameters of the sections, which are positioned in the heat-insulation regions, of the rolling rods are larger than the diameters of sections, which penetrate the rolling rod seats, of the rolling rods. The diameters of the sections, which are positioned in the working region of the rolling rod furnace, of the rolling rods range from 30mm to 40mm. Heating devices of the rolling rod furnace comprise electric heating bodies and silica glass pipes, and the electric heating bodies are arranged in the silica glass pipes. Water cooling holes are formed in the rolling rod seats, are positioned below the rolling rod holes and are used for cooling the rolling rod seats.

Description

technical field [0001] The invention relates to a rolling rod furnace used for heat treatment heating. Background technique [0002] The rolling rod furnace is a device used for heat treatment and heating of workpieces during machining. The existing rolling rod furnace is made of high-temperature-resistant materials. The furnace is the working area, and the furnace body is the heat preservation area; It is fixed on both sides of the furnace body; the workpiece to be heated is loaded on the rolling rod, and the rolling rod drives the workpiece to move. Because the bearings supporting the rolling rods need to be resistant to high temperature, the volume is large, and the volume of the bearing seat is also large, resulting in a large gap between the rolling rods, up to 60mm, and the volume of the rolling rods is also large, with a diameter of 100mm, which takes up a lot of space. The practical space is reduced, and the volume of the furnace body must be increased in order to ...

AI Technical Summary

Problems solved by technology

The exposed electric heating body is affected by the cold air outside the furnace, and the thermal expansion and contraction are frequent, which increases the brittleness of the material, the loss is large, and the cost is high; at the same time, due to mechanical or manual collisions or oxide drop, it is easy to cause a short circuit to burn out the electric heating body. Not only the loss is large, the cost is high, but also the work efficiency is affected and the product quality is reduced

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