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What is the electrical heating film?
- Electrothermal film heating system is low-carbon heating supply high-tech products which is different from the dot mode heating system represented by radiator, air-condition and heating radiator; and the streamlined heating system represented by heating cable, researched and developed by using aerospace flight technology in the surface heating field. The electrothermal film is divided into high temperature electrothermal film and low temperature electrothermal film. High temperature electrothermal film is generally used in electric products, military and so on, the electrothermal film produced by present science and technology. The low temperature electrothermal film is a kind of semitransparent polyester film which can produce heat after being electrified, which is made by processing and hot-pressing the conductive special ink and metal current-carrying strip between the insulating polyester films.s
What's the technology of membrane switch?
- The schematic circuit, lead wire location, interface pitch and wire length of the membrane switch should be indicated. If it is installed to electronic components like LED lights, its positive and negative pole should also be marked. For the membrane switch panel material (PC or PET) and the type of adhesive, our company usually recommends
PET for panel material and 3M adhesive to clients. Membrane switch, also known as touch keyboard, adopts sealing structure composed by multilayer combination of the panel. It is a kind of new electronic component sealing the key switches, panels, tags, symbol display and liner together, and integrating with light, machine and electricity. It can perform tasks of the operating system more reliably.s
How to stick the front of the mobile phone film?
- The step 1 of sticking the mobile phone film: First, use the fibre cloth in the package to clean up the dust on the surface of the screen, you should wipe it in order, but do not wipe back and forth; notice: You must first clear off the small cloth or wool cloth of the small fiber cloth, and then to wipe. Step 2: Generally, there is three layers of screen film, you should select the appropriate size, and tear off the "release liner" at the bottom layer, (the middle layer is actually useful), and then align at the LCD screen and carefully paste it down. Step 3: Stick the film and press it to purge the air under the plate, it is better to use the special tools. Step 4: You should carefully remove the air, so as not to leave the bubble and effect the beauty. Step 5: After it is pasted, you can tear off the "protective film" at the top layer. Step 6: After the protective film is pasted, it can be used. Prompt： The light transmittance is the most important evaluation index of the mobile phone screen protective film, when selecting the material, we must choose the regular film with good quality.s
How to install the electric heating film?
- Electrothermal film is provided with a different form, depending on various projects to select installation method, installation has three forms of films, wall film, film, below the main talk about installed under the ground. 1. Electrothermal membrane mounted on the ground (electrothermal mulching film) The ground installation of electrothermal film is the most scientific installation, and the best heating method from the pointview of heat transfer theory. From the health perspective, the heat is from the bottom to the top in line with human's physiological needs of "foot temperature and a cool head ". The ground installation of electrothermal membrane can not only make people feel more comfortable, and can increase the use of space area. It can fully guarantee the uniform temperature zone, but because of the different pattern of each family, furniture and goods display different, in the design and installation of the way to fully consider the degree of difficulty of the Limited space and construction, to ensure that the installation of electric heating film in the process of barrier free, make the electrothermal film heating system more safe and reasonable, reduce the cost of expenditure. The main construction is floor, heat insulating layer, electrothermal film, structural layer, decorative layer and so on, the quantitaive value of the structural layer, decorative layer and composite thermal resistance should be low to the stadard. 2. The caculation of heat load design on the installation of the electric heating film on the ground generally take use of the the following several methods. The calculation of the heat load, calculating the thermal power of each room and then converted wattage of electrothermal film. The calculation of the heat load calculation should be carried out by professionals. This method can be applied to large projects.s
How to remove the mobile phone film?
- Removal method: Only need to take an ordinary eraser on the mobile phone screen gently wipe back and forth, you can easily remove the offset, but the key point is, do not leave any damage, the screen is still bright. Method to offset eraser is also applicable to some smooth surfaces, such as glass, bathroom wall etc..s
How to pave the waterproof membrane in the interior finish
- It should first deal with the base: remove the original decoration materials, and clean up the capping mass and cement. It requires smooth and dry surface. Paving waterproof paint: brush a layer of modified asphalt and lay a layer of glass fibre cloth on the base of waterproofing process, and then repeat brushing, finally brushing the paint on the second layer of glass fibre cloth, the waterproof processing is finished. Waterproof coating shall be painted in uniform, glass wool cloth and waterproof layer must be closed tightly, it can not have the phenomenon of brushing leakage, bulking and shedding, otherwise it will affect the waterproofing effect. If you select the polyurethane waterproofing paint, it should not usually add the glass wool cloth, just repeatedly brushing 2 to 3 times as long as you can. Explain： Note that see the prompt part of the page to do the "closed water" test: Closed water test is an important test method to test the water quality of indoor. After the waterproof project is done, seal the door and the water inlet, fill with water in the room to reach a certain level, if there is no significant decline in the liquid level within 24 hours, that is qualified. And then do a layer of protective layer: Do a layer of cement mortar protection layer on the waterproof coating layer, pay attention not to damage the waterproof coating layer. After the cement mortar protective layers dry up, you can pave the wall floor tile or brush the paint on it, and then do the normal decoration.s
the higher the carbon black content in Landfill HDPE geomembrane, the better.
- If it contains little carbon black, it will have poor UV resistance and aging resistance performance, so is the case when it contains too much. So it is not the higher the better. Usually the carbon black content is between 2% -3%. carbon black content can be adjusted by adding into geomembrane black masterbatch.s
What is the difference between geomembrane and impermeable membrane?
- Different people to give different names, in fact, almost, just to see where you use, what to do. According to the nature of the material can be divided into: HDPE (two cloth a film, a cloth a film,), LDPE, PE, GLC, PVC, EPDM and so on. Different materials use a different range, but can be called geomembrane or impermeable membrane. Source: Tony Tunas
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