Atmosphere box type sintering furnace for producing mobile phone back plate

Abstract

The invention discloses an atmosphere box type sintering furnace for producing a mobile phone back plate. The atmosphere box type sintering furnace comprises a furnace body, a filter box, an extraction opening, an atmosphere opening, a furnace door, a tail gas treatment box and a temperature controller, wherein a heat preservation material is arranged inside the furnace body, a degreasing pipe isinstalled on the side face of the filter box, the degreasing pipe is connected with a draught fan, the extraction opening communicates with the furnace body, the furnace body can be vacuumized beforesintering, the atmosphere opening is connected with a storage tank, nitrogen can be introduced into the furnace body, a cooling box is installed in the furnace door, the tail gas treatment box is installed on the side surface of the furnace body and can be used for filtering and treating flue gas during colloid discharging and sintering, a smoke outlet and an explosion-proof pipe are installed atan outlet of the tail gas treatment box, the explosion-proof pipe is controlled by an air pressure tester to be opened and closed, and the temperature controller is controlled by a PLC element and isconnected with a power supply and a heating device through wires to control the temperature inside the furnace body. According to the atmosphere box type sintering furnace for producing the mobile phone back plate, the colloid discharging and sintering are integrally processed, so that the production efficiency is improved, the labor force is reduced, and the mobile phone backboard ceramic is efficiently and stably sintered.

Description

technical field [0001] The invention belongs to the field of ceramic sintering furnaces, and in particular relates to an atmosphere box-type sintering furnace used for the production of mobile phone back plates. Background technique [0002] At present, mobile phone shells are generally made of ceramic materials, such as zirconia, etc., when new ceramics are formed, more organic binders and plasticizers are added, such as paraffin wax and rolling film for hot die casting, polyvinyl alcohol for tape casting, etc. . During firing, a large amount of organic matter in the green body melts, decomposes, and volatilizes, which will cause deformation and cracking of the green body. At the same time, the organic matter contains a lot of carbon. When the oxygen is insufficient to form a reducing atmosphere, the sintering quality will be affected. Therefore, it is necessary to remove the organic matter in the green body before firing to ensure the shape, size and quality of the produc...

AI Technical Summary

Problems solved by technology

This results in a decrease in production efficiency and an increase in labor

[0004] At the same time, during the sintering process of the existing sintering furnace, the smoke generated by the residual solvent is harmful to the human body, and the direct emission affects the air quality

Images