Q:Plastic film sealing machine (Dorch) repair

Look at your lights if the temperature controller is always heating state that is heating pipe is broken can be bought at a price in dollars a dozen

Q:How often will the plastic film in the greenhouse be replaced?

There is no fixed deadline, mainly to see the integrity and transparency of the greenhouse films, if maintain proper, by cleaning and repairing can meet the use requirements, can be reused for years, saving the cost; if improper maintenance, natural or man-made damage is serious, a year could be replaced several times.

Q:Is it good to use paper bags or plastic film bags?

In fact, the plastic film is not good, because the film is easy to produce electrostatic glue sand and other hard particles (hardness greater than disk) due to careless small scratches on the surface of the film and the surface in close contact to remove the disc, so the theory of paper (shell) bag is better than the film I hope this helps for you

Q:Why should a plastic film be added to the new cement road?

The maintenance of concrete, according to the thermal calculation, concrete internal and surface temperature is less than 25 degrees, concrete pouring time after surface covered with a layer of plastic film insulation, timely prevent the conservation of water caused by excessive temperature difference between inside and outside the concrete temperature crack.

Q:What kind of material is plastic film in greenhouse?

Polyethylene high foaming filmIt is a white, multi bubble plastic film. It is 1 meters wide and 0.4 to 0.5 centimeters thick. It is light enough to roll up, and its insulation is similar to that of grass.

Q:Are planted steel structure plastic film shed structures?

The planted steel structure plastic film greenhouse structure does not belong to the category of structures, and the main reasons are as follows:Structures generally refer to places where people are not directly involved in production and living activities. Such as water towers, chimneys, Zhanqiao, dams, reservoirs and so on. Normally, so-called structures are artificial structures that do not have, do not contain, or do not provide human habitation, such as towers, ponds, filters, clarifier, digesters, etc.. An artificial building that has, contains, or provides human habitation, known as a building. The name of the structure is much more in the textbook of water supply and drainage. It should be noted that this definition is not absolute. In water conservancy and hydropower projects, all structures on rivers and channels are called buildings, such as hydraulic structures.

Q:Can plastic film protect against ultraviolet rays?

The transparent film itself UV blocking effect is not good, the general need to add other ingredients, such as color masterbatch, metal particles etc.

Q:What are the appliances for drawing plastic films?

The tensile strength is divided into longitudinal and transverse directions. Plastic film material in a certain direction, through the tensile fixture test speed, tensile until fracture, showing the carrying capacity.

Q:Will iron make any pollution when it is melted again?

Plastic products are plastic particles or plastic powder heating melting molding. As to whether plastic bags are harmful to the human body, it depends on whether the raw materials and additives used to make plastic bags are harmful to human body

Q:PVC and PE plastic film, which can be used as food preservative film?

PE plastic wrap can be used to wrap food. Because PE made of plastic film is harmless to human body.