Hot bending of acrylic solid surface is a method of heating acrylic material to the softening point and then bending it into the desired shape by external force. The following are the specific steps and precautions for hot bending of acrylic solid surface:
First, hot bending molding steps
Preparatory work
Design template: Design and make a good template according to the required shape, the template should be smooth, flat, and consistent with the required shape.
Material preparation: Select the acrylic sheet suitable for hot bending to ensure that the thickness of the sheet is uniform, no bubbles, cracks and other defects.
Heating equipment: Prepare heating equipment, such as oven, hot bending machine, etc., to ensure that the equipment can evenly heat the acrylic sheet.
Heating sheet
Preheat the oven: Preheat the oven to near the softening point of the acrylic material, the general molding temperature of acrylic plastics is between 49-190°C, the specific temperature needs to be determined according to the thickness of the sheet and the desired shape.
Place the sheet: Place the acrylic sheet in the oven to ensure that the sheet is heated evenly. In order to avoid deformation of the sheet, the sheet can be hung vertically or the edge can be clamped.
Heating time: Determine the heating time according to the thickness of the plate and the oven temperature. During the heating process, it is necessary to observe the changes of the plate to avoid melting or deformation of the plate due to overheating.
Bend forming
Remove the sheet: After the sheet is heated to the softening point, remove it quickly and place it on the template.
Bending sheet: Use external forces (such as manual bending, mechanical bending, etc.) to bend the sheet along the shape of the template. During the bending process, the force should be maintained evenly to avoid cracks or deformation of the plate.
Fixed shape: After the sheet has cooled and fixed the shape, remove the template. At this point, the acrylic sheet has been bent into the desired shape.
Follow-up treatment
Remove burrs: Use sandpaper or a sander to remove burrs and uneven parts from the edges of the sheet.
Polishing treatment: According to the need to polish the surface of the plate to improve its gloss and beauty.
Second, precautions
Temperature control: The heating temperature needs to be precisely controlled according to the thickness of the plate and the desired shape to avoid deformation or inability to bend the plate due to overheating or undercooling.
Bending strength: When bending the plate, it is necessary to maintain uniform strength to avoid excessive strength leading to cracks or deformation of the plate.
Cooling time: Adequate cooling time should be given after the sheet is bent to ensure that its shape is fixed.
Safety protection: Wear protective equipment such as glasses and gloves during heating and bending to avoid burns or scratches.
Sheet selection: acrylic sheets of different thicknesses have different thermal bending properties, and the appropriate sheet thickness should be selected according to actual needs. The thinner plate has a smaller bending radius, but it is fragile; The thicker plate has a larger bending radius, but the hot bending is more difficult.
Template design: The design of the template needs to consider the bending radius and shape requirements of the plate. The formwork should be smooth, flat and consistent with the desired shape to avoid deformation or cracks in the sheet during bending.
Third, the application of hot bending
The hot bending of acrylic solid surface is widely used in advertising signs, display stands, furniture accessories, decorations and other fields. Through hot bending, you can make a variety of unique shape, beautiful and generous acrylic products to meet the needs of different industries and fields.
In summary, the hot bending molding of acrylic solid surface is an effective processing method, through the precise control of heating temperature, bending force and cooling time and other parameters, can be made to meet the requirements of acrylic products.
