The PE sheet production line process is very important:
The process is very important for the production of production lines such as PE sheet production lines. This is every detail and process that we need to pay attention to during our normal work. These are some of the factors we must know in life. It can also be said that our PE sheet production line requires a formal workflow. The efficiency and quality of such work can be guaranteed.
There are many important reasons for the process work of the PE sheet production line. In fact, the benefits of the pipeline work are also very many. In comparison, the efficiency of this work and the speed and quality of the products produced are guaranteed above. Many times, we have different production methods for this type of production.
The production line is a variety of equipment working together to complete a finished product. At the same time, the quality of our equipment and the production of each production step have dedicated personnel, so that. Production quality and speed are very good.
PE sheet production line equipment cleaning work details:
The first step in cleaning the PE sheet production line equipment is to remove the oil stain on the surface of the workpiece. When repairing PE sheet production line equipment, it is often necessary to thoroughly clean the surface oil. Below we will take a look at the specific steps and details of the cleaning of PE sheet production line equipment.
PE sheet production line equipment is often contaminated with a large amount of oil during use, and the presence of oil can affect its repair work. If the surface of some parts is not worn out, you can use sanding cloth to polish. Although the grinding machine grinding process is generally required to restore the surface of the parts, this will increase the time of the repair process and greatly reduce the efficiency of the repair.
It should be noted that the PE sheet production line equipment can be repaired by metal spraying for some copper kits. In general, although the copper sleeve has the highest wear resistance, metal spraying can be performed during repair, reducing repair time and facilitating repair efficiency.
To clean up the PE sheet production line equipment, we need to do a lot of pre-cleaning work, and we should ensure that our equipment is in a very good state of health when cleaning.
Green development film calls for a new national standard:
Since the introduction of mulching cultivation technology into China in the 1970s, it has achieved significant yield-increasing effects in arid areas due to the realization of soil temperature control and conservation, and has now become a core technology for dry farming in China. However, experts have warned that the problem of mulch pollution that has been exposed should be brought to the attention of all circles. It is not necessary to formulate a stricter national standard to solve it.
The investigation found that the refractory mulch film is mainly a so-called ultra-thin mulch film having a thickness of 0.008 mm or less. This kind of film has poor ductility, fast aging, and some may even be damaged in the harvest season. The large residual film can be cleaned with tools such as nail thorns and iron forks. If it is too thin and too small, it can only be picked up by hand. In many places, the mulch is weathered into the size of a fingernail and cannot be recycled at all.
Meng Li, deputy director of production and sales of Lanzhou Hongda Film Factory, pointed out: “The film is sold by weight. Under the same coverage area, the thinner the film, the lower the cost of use, which makes the ultra-thin film in the agricultural market. According to the current national standard for polyethylene blown agricultural floor covering film developed in 1992, the minimum thickness of the film is 0.008 mm, and the allowable deviation in the standard, the film with a thickness of 0.005 mm or even 0.004 mm can pass the test."
The most effective way to ensure that farmers do not use ultra-thin mulch is to increase the thickness of the national standard and allow the ultra-thin film to completely withdraw from the market. Xu Dianhong, senior engineer of China Petroleum and Petrochemical Research Institute, suggested that relevant national departments should consider revising the national film thickness standard with reference to foreign film standards: “Improve the minimum standard for the thickness of polyethylene blown agricultural floor covering film in existing national standard to 0.015. Mm is appropriate."
In addition, there are still a large number of recycled plastic mulch films sold in the market in China, and the mulch film made from waste recycled plastics is mostly small factory products. Due to their low price, these products have a large market in rural areas, but their quality is not guaranteed, they are more vulnerable, their lifespan is short, and the recovery is more difficult. In fact, the environmental burden is further increased. To this end, Xu Dianhong suggested that the relevant state departments should let the recycled plastic film out of the market as soon as possible.
“The environmental protection of plastic mulch has a great impact on land quality. Therefore, the pursuit of green film mulching should also become one of the development directions of the agricultural film industry.” Zhu Bochao, a senior technical expert at PetroChina, said.
It is understood that the new varieties of biodegradable and environmentally friendly plastic film developed in China have covered photodegradation, photobiodegradation, photooxidation biodegradation, high starch content biodegradation, high calcium carbonate filled photooxidation degradation, and full biodegradation. Large categories have played a positive role in improving the environment. As a novel green material, water-soluble film has been widely used in developed countries because of its environmentally-friendly properties such as thorough degradation and safe and convenient use.
It is understood that with the innovation and large-scale promotion of new drought-resistant technologies, Gansu Province is actively practicing in terms of policy support, mechanism innovation, and strengthening supervision. It has increased the management of waste agricultural film pollution, and the recycling of used agricultural film is beginning to see. Results. For example, in addition to the province's support policies, the province's waste film recycling enterprises have also received key support in terms of land use, electricity use, tax incentives, credit support, and project declaration. All relevant enterprises have set up waste plastic film recycling outlets in townships and villages through self-acquisition or development agreements to acquire large households, purchase economicians, and mobile waste purchase merchants (sellers). This facilitates farmers to sell waste film and effectively connect farmers to pick up The three aspects of network recycling, enterprise processing, and enterprise recycling scale are expanding.
In view of these successful experiences, Mengli suggested that the relevant state departments should give green agricultural film products support in policy, like the recycling of used agricultural film, and give priority support in terms of land use, electricity consumption, tax incentives, credit support and project declaration. Set up special funds to promote the promotion of environmentally friendly agricultural film, guide enterprises to work hard on technology and product upgrades, and further promote the green transformation of China's agricultural film industry.