Sealing is not one of the common faults of the continuous sealing machine. The sealing does not have three meanings: 1 The sealing position of the bag cannot be closed; 2 The bag mouth is sealed under the pressure of the sealing knife, but it is squeezed slightly or Tear-peeling and sealing cracked again; 3 When the peeling test was performed at the sealing area, half of the seals were firmly sealed and half separated. The sealing quality of the bag was still unacceptable because the contents were squeezed during storage and transportation. Easy to miss. This situation often occurs when the composite lining is OPP and blow molded PE. The 3 Axis Water Jet Cutting Machine is the unique cold cutting new technology in the world, and has an unparalleled lead in the field of material cutting. Compared with other processing technologies, such as flame cutting, plasma processing, laser cutting, EDM cutting, cnc milling, water cutting does not produce harmful gases or liquids and does not generate heat on the surface of the workpiece. Water jet cutting is truly versatile, efficient, and cold-cutting. Water cutting directly uses the kinetic energy of the abrasive water jet to cut the metal to achieve the perfect cutting purpose. no chemical change during the cutting process, no influence on the physical and chemical properties of the cutting material, no thermal deformation, narrow slit, high precision, smooth cut surface, clean and pollution-free, and can process traditional processing and Other processing methods can't process or hard to process materials, such as glass, ceramics, composites, reflective materials, chemical fiber, heat sensitive materials. 3 Axis Water Jet Cutting Machine Aluminum Cutting Machine,3 Axis Water Jet Cutting Machine,Waterjet Cutting,Small Waterjet Cutting Machine HARBIN QIAN FAN XI FENG MACHINERY CO.LTD , https://www.waterjetwamit.com
The main causes of the first type of failure are the following.
(1) The heat seal temperature is not enough
Under normal circumstances, the composite bag with OPP as the material, when the total thickness of the bag is 80 ~ 90μm, the heat sealing temperature should reach 170 ~ 180 °C; the total thickness of the bag made of PE with the compound bag is 85 ~ 100μm When the temperature should be controlled at 180 ~ 200 °C. As long as the total bag thickness increases, the heat seal temperature must be increased accordingly.
(2) Heat sealing speed is too fast
The lack of sealing is also related to the speed of the sealing machine. If the speed is too fast, the seal is still heated in the future and it is transported to the cold pressure place by the pulling roller for cooling. Naturally, the heat sealing quality is not achieved.
(3) The cold pressure rubber wheel is not suitable
There is one on each side of the cold-compression rubber wheel, and the pressure between them must be moderate. When adjusting the pressure, only the spring needs to be clamped.
(4) Problems with heat seal film quality
Sealing seals are also not related to the quality of the heat-seal film. If the corona treatment of the composite lining is not uniform, the effect is not good, and it happens to occur at the seal, and it cannot be sealed. This situation is rare, but once it appears, the product must be scrapped. Therefore, in the color printing and packaging industry, it is the next process to supervise the previous process. Once quality problems are discovered, the causes must be analyzed and resolved in a timely manner.
If there is moisture and dirt in the seal, the seal will be loose.
Water Jet Cutting Machine advantages showing:
(1) The roughness of when cutting metal is 1.6μm, and the cutting precision is ±0.10m, which can be used for precision forming cutting;
(2) No reflection effect and edge loss in the cutting of non-ferrous metals and stainless steel;
(3) only need one time to cut carbon fiber composite materials, metal composite materials, metal composites with different melting points and non-metals;
(4) Cutting of low melting point and flammable materials, such as paper, leather, rubber, nylon, felt, wood, explosives, etc.;
(5) Cutting under special site and environment, such as underwater, flammable gas environment;
(6) Cut high hardness and insoluble materials, such as stone, glass, ceramics, cemented carbide, diamond, etc.
Chinese water jet cutting machine now is widely used in all over the world, our waterjet cutter has been exported to more than 15 countries yet, and can provide local service in USA, CHILE,AUSTRILIA,VIETNAM, TURKEY,RUSSIA,UK,INDONESIA. we hope our Waterjet Cutting machine can bring more customers more business and give you perfect cutting suggestion.