The principle of the glass bending machine is to heat the glass to make it soft, and then realize the bending of the glass by the external force applied to the surface of the glass. The realization of the heat bending machine mainly includes the following steps: heating, bending and cooling.
First, the glass plate needs to be placed on the working table of the heat bending machine. Then, the glass is heated using electric heating wire or flame, etc., so that its temperature rises to the softening temperature of the glass. The temperature and time of heating need to be determined according to different glass types and bending angles.
After the glass has softened, a bending operation is required. Usually, the table of the hot bending machine is equipped with a movable bending mold, the shape of which determines the bending angle and shape of the glass. During the heating process, the mold on the table and the glass plate are kept in contact, and when the temperature reaches the required level, the appropriate force is applied to the mold to bend the glass plate by means of a manipulator or a hydraulic device, for example.
After the bending is completed, the glass needs to be cooled. Cooling can be done in a variety of ways, commonly by spraying water on the surface of the glass or by placing the glass plate on a cooling table. The rate of cooling has an effect on the quality of the bent glass and needs to be adjusted according to the specific requirements. Typically, faster cooling speeds result in less bending of the glass, while slower cooling speeds result in greater bending.
In addition, in order to ensure the bending effect and quality of the glass, the following points need to be noted in the operation of the heat bending machine. First of all, it is necessary to choose the right glass according to the production requirements. Different types of glass will have different risks of deformation and breakage during the heating and bending process, so it is necessary to choose according to the actual situation. Secondly, the heating temperature and time should be strictly controlled to avoid irreversible deformation or breakage caused by overheating or overfiring of the glass. At the same time, the uniformity of the heating temperature also needs to be paid attention to, so as to avoid obvious temperature unevenness on the surface of the glass. Finally, the cooling process needs to pay attention to the control of the cooling speed to avoid too rapid a change in temperature leading to glass rupture.
In summary, the glass heat bending machine softens the glass by heating it, and then uses an external force applied to the surface of the glass to bend the glass plate to the desired bending angle through the bending mold. The control of heating and cooling is the key to ensure the quality of the glass. Through reasonable operation, the bending processing of glass can be realized to meet the needs of various architectural, furniture and decorative fields for shape and angle requirements.
