Overview of glass tempering furnace
Glass tempering furnace also known as glass tempering equipment, glass tempering unit, tempering furnace, tempering equipment, tempering unit, etc. There are intermittent and continuous, hanging and horizontal, electric heating and gas heating.
Do glass tempering furnace insulation, first understand glass tempering furnace working principle. The physical method is usually adopted in the glass tempering treatment, and the glass is heated to the temperature near the softening point ( 650 deg c ), blown and quenched to form a compressive stress layer on the surface of the glass and a tensile stress layer inside the glass; When the glass is subjected to external force, the compressive stress layer can offset part of the tensile stress and avoid the glass from being broken, thereby achieving the purpose of improving the strength of the glass.
General processing ordinary flat glass, its length according to the length and width of the processed glass can be roughly divided into 4 meters, 10 meters and other different kinds.
Glass tempering furnace furnace temperature is 800 ℃. Use resistance wire heating.
Heat insulation structure of glass toughen heating furnace
Glass tempering furnace heat preservation, fire-resistant heat preservation of glass tempering equipment, light heat insulation material of glass tempering unit, aluminum silicate heat preservation of tempering furnace, ceramic fiber module heat preservation of tempering equipment, fire-resistant heat preservation of tempering unit
For glass heated to melting point for heat treatment, ceramic fiber blanket or module is not used for heat preservation in order to prevent the glass from being polluted. The structure used in the current glass tempering furnace lining is generally the standard aluminum silicate fiber board layer structure for the top, wall and bottom of the furnace, with a total insulation thickness of 250 mm..
Roller seal: roller seal, roller seal heat insulation block, dragon roller heat insulation special-shaped parts, using high quality ceramic fiber cotton as raw material, made by vacuum forming process.
Technical advantage
In the heating process, there is a temperature difference between the edge and the middle of the furnace, resulting in uneven stress. At present, there is no way to completely avoid stress spots, but well-designed tempering equipment can minimize the visibility of stress spots. The ceramic fiber board has the advantages of light weight, simple and convenient installation, low thermal conductivity, good thermal insulation effect, maximum reduction of the visibility of stress spots and improvement of the qualified rate of tempered glass products.
Ceramic fiber profile, low shrinkage, high heat insulation, light weight, impact resistance. Can meet that special-shaped product required by specific production link of certain industrial departments, each product is manufactured into a special mold according to the shape and size requirement of the product, and different binding agents and additives are selected according to the performance requirements of the product so as to meet the use requirements of customers.
