Disposal Biodegradable Paper Pulp Tray Hot Press Machine Dry pressing Equipment
Machine Description
Due to the varying degrees of deformation of wet paper blanks after drying or air drying, there are also varying degrees of wrinkles on the surface of the product.
So after drying, it is necessary to shape the product. Plastic surgery is the process of placing a product on a molding machine equipped with a mold, and subjecting it to high temperatures (usually between 100 ℃ and 250 ℃) and high pressures (usually between 10 and 20MN) to obtain a product with a more regular shape and smoother surface.
Due to the wet pressing process, the product is formed without drying and directly subjected to hot pressing shaping. So in order to ensure that the product is fully dried, the hot pressing time is generally more than 1 minute (the specific hot pressing time depends on the thickness of the product).
We have various styles hot pressing shaping machine for your choose, such as below: pneumatic,hydarulic,pneumatic&hydarulic,electricity heating, thermal oil heating.
With different pressure matching:3/5/10/15/20/30/100/200 tons.
Characteristic:
Stable performance
High precision level
High level of intelligence
High security performance
Production Process
Molded pulp products can be simply divided into four parts: pulping, forming, drying&hot press shaping and packaging. Here we take egg box production as an example.
Pulping: waste paper is crushed, filtered and put into the mixing tank in a ratio of 3:1 with water. The entire pulping process will last about 40 minutes. After that you will get a uniform and fine pulp.
Molding: pulp will be sucked onto the pulp mold by the vacuum system for shaping, which is also a key step in determining your product. Under the action of vacuum, the excess water will enter the storage tank for subsequent production.
Drying & hot press shaping: formed pulp packaging product still contains high moisture content. This requires high temperature to evaporate the water. After drying, the egg box will have varying degrees of deformation because the structure of the egg box is not symmetrical, and the degree of deformation of each side during drying is different.
The pulp molding dry pressing process requires dehydration treatment of the pulp blank, and then pressure shaping or non shaping process is used under the drying conditions of the pulp molding embryo. This process is relatively simple and cost-effective, but requires additional dehydration steps. Generally, there are several drying methods for embryo dehydration, including natural drying, drying in a sunroom, drying in a drying oven, drying on a hanging basket production line, and combined drying
Packaging: finally, the dried egg tray box are put into use after finishing and packaging.
Application
Pulp molded products manufactured by dry pressing process are commonly used in the packaging field, such as making sturdy paper boxes, protective lining materials, etc. Meanwhile, its low density and compressive strength also make it suitable for applications that require high buffering capacity.
The dry pressing process is suitable for producing durable products that can withstand high pressure or buffering. The cost of dry pressing products is relatively low, and the mold cost is also relatively low. In areas where the appearance requirements for product packaging are not strict, dry pressing should be chosen as much as possible. Currently, dry pressing is also the most common application.
After-sales Service
Guangzhou Nanya Pulp Molding Equipment Co., Ltd. is a manufaciurer with near 30 years of experience in developing and producing pulp molding equipment. We have become ven proficient in the production process of equipment and molds, and we can provide our customer wih mature market analsis and production advice.
So if you purcase our machine,including but not limit below service you will get from us:
1)Provide 12 months warranty period, free replacement of damaged parts during the warranty period.
2)Provide operation manuals, drawings and process flow diagrams for all equipment.
3)After the equipment is installed, we have professional personnel to quide the buver's staff on the operation and maintenance methods4We can quide the buyer's engineer on production process and formula.
