What types of glass bending furnace? What is their features?

(1) single chamber furnace chamber furnace is common glass bending furnace, its type, which has two kinds of drawer and lift. Due to the construction glass small batch and many specifications, so using a single chamber furnace is economic and convenient. A single chamber furnace only one station, glass from heating and hot bending to annealing are completed in this location. The advantage of a single chamber furnace is adapt to all kinds of different specifications of products, are not required to have continuous process system, each furnace according to different products, formulate the corresponding process parameters. Single chamber furnace, simple, easy to handle structure, good sealing, relatively low consumption. Defect is low efficiency, hot bending cycle is long. Draw out a single chamber furnace, its structure is like a drawer, kiln car is a only the first face of flat car, the loading and unloading provides great convenience for the glass, single chamber furnace can bend glass a big size 12 m * 3 m. Lift a single chamber furnace, its structure is all around and the upper seal, furnace bottom has a certain height, from the bottom of the furnace into the glass, can be at the bottom of the elevator, hot bending mould by external trajectory into hot bending platform and rise to hot bending, good hot bending glass products against the process exits.

2 circulating hot bending furnace circulating hot bending furnace in production to reduce the area is commonly fluctuation cycle, the upper furnace for preheating 1 zone, preheating zone 2 area, hot bending area, annealing, hot bending furnace bottom are annealing cooling zone. Were composed of an independent kiln car. Glass products from discharging area load, up to the upper hot bending furnace, the kiln car into, in the preheating zone glass heating to 400 ~ 500 ℃, and then into the hot bending area, at about 600 ℃ began to hot bending glass, into the cooling after annealing, at about 400 ℃ annealing kiln car down to lower level, glass annealing is around 70 ℃.

(3) reciprocating hot bending furnace reciprocating hot bending furnace has two kinds of 5 Labour and 3 Labour. 5 station furnace has 2 loading area, 2 preheating zone, 1 hot bending area, there are two of the kiln car. Glass in the preheating zone heated to 400 ℃ or so into the hot bending area, hot bending back again after temperature preheating zone, another kiln car entering hot bending area again, so on. Only 2 3 station furnace discharge area and 1 hot bending area, there are two of the kiln car, glass directly from room temperature by the temperature in hot bending zone system reaches the temperature of hot bending and hot bending after cooling to 250 ~ 300 ℃ and then back to the loading area. Reciprocating hot bending furnace can adapt to different glass products, does not require continuous temperature system, but the sealing degree is inferior to a single chamber furnace, structure is more complicated than the single chamber furnace.