Views: 292 Author: Site Editor Publish Time: 2023-06-20 Origin: Site
The applications of thermal insulation materials in many fields are very important, such as building industry, and energy applications. Along with the continuous improvement of requirements on energy efficiency, more and more thermal insulation materials are used in projects, more importantly, the quality requirements of which are improved continuously. In processing, the oscillating knife cutting machine is advanced cutting equipment, showing its unique advantages step by step and broad application prospects in thermal insulation material treatment.
Such as rock wool and glass wool. This type of material has the advantages of lightweight, low thermal conductivity, and good chemical stability. Rock wool is an artificial inorganic fiber whose main raw materials are natural rocks such as basalt and gabbro. These are melted at high temperatures and made by high-speed centrifugal equipment. Glass wool is made by melting glass and then fiberizing it. The fiber structure gives them certain performances in sound absorption while maintaining warmth. However, the texture is loose and subject to easy deformation while being cut.
Foam materials consist of polystyrene foam (EPS), extruded polystyrene foam (XPS), and polyurethane foam among others. EPS is created from molded beads of expandable polystyrene which are first preexpanded in a steam chamber before being molded, XPS is however created from adhesive polystyrene resin through a process known as extrusion. Polyurethane foam is also manufactured using chemicals such as isocyanate, and polyol through a chemical process. Such types of foams exhibit very low thermal conductance and have good insulating properties, however, the outer layer is a bit soft hence it can easily wear off leading to chippings and wastage during shaping and cutting processes.
Like aluminum silicate, aerogel felt, etc. Aluminum silicate is made from hard clay clinker and has the characteristics of high-temperature resistance and good thermal stability. Aerogel felt is a new type of nano-insulation material. Its nano-scale pore structure makes it have excellent thermal insulation performance, but this material is brittle and has high requirements for cutting technology.
Most insulation materials are loose, fragile, or uneven in texture. During the cutting process, traditional cutting methods can easily cause the edges of the material to break and fall off, affecting the integrity and insulation performance of the insulation material. For example, when EPS is cut with ordinary knives, due to the pressure and friction of the blade, a large amount of foam debris is easily generated on the cutting surface, and the material at the cut may be compressed, changing its original density and insulation effect.
In application scenarios such as building insulation, insulation materials need to be precisely cut to adapt to different installation spaces. For insulation needs of special shapes such as industrial insulation pipes, highly precise cutting is required to ensure that the insulation material can fit tightly to the insulated object to prevent heat loss. Traditional manual cutting or simple mechanical cutting is difficult to meet this precision requirement, which is easy to causes material waste and poor insulation effect.
Some insulation materials can create pollutants, such as dust while being cut. If adequate management is not practiced, it would pose health risks to the operators as well as the surroundings. For example, when cutting rock wool fiber, it generates fine fibrous dust, which upon inhalation causes harm to the respiratory system. On the other hand, some of the insulation materials like polyurethane foam that are made of a firebearing foam, may pose safety hazards by producing frictional heat when being cut. cutting them may pose safety risks by producing frictional heat due to cutting action.
The insulation felt cutting machine with a vibration knife is the most notable feature thanks to the high-frequency vibration imparted to the knife when cutting. The vibration system of the machine is built up of a motor, an eccentric wheel, and other assorted parts. The motor drives the eccentric wheel which in turn causes the knife fixed to it to vibrate up and down at high frequencies, in a plane that is perpendicular to the plane of cutting. When such a blade vibrates while cutting the thermal insulation materials, the following effects are observed:
The vibration changes the friction form between the knife and the insulation material from traditional sliding friction to intermittent impact friction. This change greatly reduces the friction during the cutting process and reduces the damage to the material caused by friction. For fiber insulation materials, it can effectively prevent the fiber from being over-pulled.
When the vibration knife is cutting, the material is more likely to produce tiny cracks under the action of vibration. These cracks extend along the cutting direction, reducing the external force required for cutting. This is especially important for foam insulation materials with lower hardness, which can prevent the material from being crushed or severely deformed due to excessive cutting force.
The insulation panel cutting machine can accurately control the cutting path and size and can achieve cutting of complex shapes through the CNC system. Whether it is cutting precise polygons for building exterior wall insulation boards or customized cutting for special-shaped insulation parts of industrial equipment, it can ensure extremely high dimensional accuracy. Its accuracy can reach the millimeter level, effectively reducing installation problems and material waste caused by dimensional deviation.
Therefore, the characteristics of vibration cutting machine ensure a minimum degree of damage to the insulation material. For those fragile new insulation materials, such as aerogel felt, the oscillation knife cutting machine can finish the cutting without destroying its internal structure. Regarding the cut fiber insulation material, its original arrangement and length can be maintained to guarantee that the material properties will not be affected by insulation and sound absorption. Meanwhile, it can reduce the generation of debris in cutting for foam insulation materials so that the cut can be smooth and flat.
Being relatively dustless is one of the great advantages of the vibration knife cutting machine, and its cutting way reduces the crushing and friction of materials. The digital cutting machine can effectively reduce dust pollution for those materials, that easily raise dust during the cutting process, rock wool. Besides, flammable insulation materials, like polyurethane foam, with low friction and difficulty in generating excessive heat, reduce the happening of fire hazards.
The vibration knife cutter has a high cutting speed and can quickly complete the cutting task of insulation materials. In mass production of insulation boards or large-scale industrial insulation projects, its high efficiency can significantly shorten the production cycle. At the same time, it can continuously cut insulation materials of different shapes and sizes without frequent tool changes or equipment adjustments, further improving production efficiency.
Many insulation boards should be paved in the building's exterior wall insulation system. It can cut the insulation board according to the requirements of architectural design into suitable sizes and shapes using the CNC oscillating knife cutter. No matter if it is a rectangular polystyrene board or an insulation decoration integrated board with some curvature, it can be cut accurately. Special insulation materials can also be made for the special-shaped structures in buildings, such as round columns or arched doors and windows to ensure the insulation effect while beautifying the building. Besides, the vibrating knife cutting machine can satisfy the processing requirements of different types of insulation materials when considering building roof insulation and ground insulation.
In industry, a great deal of pipes, tanks, reactors, and so on have to be insulated. The vibrating knife cutting machine can cut the insulation material for a pipe with different diameters according to the size of the circumference and thickness. Examples are: cutting rock wool insulation pipe shells into appropriate length and width and fitting tightly onto the pipe. Insulation of large tanks can handle the cutting of big-area insulation boards or insulation coils for matching between insulation materials and tank surfaces, improving insulation efficiency in industrial equipment, and reducing energy loss.
They can be used in the car and ship to improve comfort and save energy. For instance, the inner insulation layer of a car and the cabin insulation structure of a ship. The CNC knife cutting machine for insulation materials with a vibration knife can process the insulation material into the specific shape and size required by those places, which meets the needs of lightweight and efficient insulation in a vehicle. Meanwhile, these can satisfy the insulation demands of some new types of vehicles, such as the insulation compartments of high-speed trains, and also adapt to new insulation materials and complex cutting requirements.
The application of the oscillating cutting machine to the field of insulation material treatment has very significant advantages and broad prospects. It has solved many problems in insulation material processing effectively and showed excellent performance in improving the accuracy of cutting, protection of material performance, environmental protection, and safety. Along with the continuous development of the insulation material industry and the further improvement of the processing quality requirement, the vibration knife cutting machine will play a more important role in future insulation material processing, which can accelerate the wider application of insulation materials in various fields and the realization of better energy-saving effects.
