Traditional Culture Encyclopedia - Traditional festivals - The disadvantages of plastic compared with metal, the advantages and disadvantages of TV metal body and plastic'
The disadvantages of plastic compared with metal, the advantages and disadvantages of TV metal body and plastic'
The disadvantages of plastic compared with metal At present, the housings used in TV boxes on the market can be basically divided into two categories: metal and nonmetal.
What are the advantages and disadvantages of plastic parts compared with metal parts? Generally speaking, the nonmetallic shell is made of ABS/PC plastic, which has the characteristics of low ignition point and high temperature resistance. Even if the set-top box is heated for a long time, the shell is not easy to melt and burn, which is very helpful for daily use.
When the two products have the same volume, the metal contains free electrons and can flow freely in the metal. When heated, the flow of free electrons will quickly transfer energy to the whole metal, indicating that heat transfer is fast, while plastic has fewer free electrons and energy flows slowly in the object. So free electrons are the key to heat transfer.
So although the metal set-top box feels hotter than the plastic one (this is because it conducts the internal heat to the outside, that is, the shell of the set-top box, so the metal material feels hotter); On the other hand, plastic keeps heat in it. It's hot inside, but it feels normal outside. But this is only the most rough judgment, because although some boxes are plastic shells, they may also consider the structure of the shell or the internal heat dissipation, so they cannot be generalized.
The internal cause of the set-top box fuselage temperature is still related to the conversion rate. If the conversion process is more efficient, less power consumption and less heat. When the inside is overheated, the temperature will continue to be too high, which will accelerate the aging of components, and eventually lead to a short service life of the set-top box and a heavy load of system components.
The external factor affecting the temperature of the set-top box is its shell. Because the thermal conductivity of metal and nonmetal materials is different, it has great influence on the heat dissipation of set-top box.
The appearance competitiveness of the set-top box is realized by the shell, so this is why many manufacturers are willing to set up a special design team for the shell. The material of the shell also directly determines the handle and heat dissipation performance, which can enhance the overall competitiveness of the product.
Excessive fuselage temperature will accelerate the aging of internal electronic components. Optimizing the internal structure of set-top box can improve heat dissipation, and the shell material also has a great influence on heat dissipation. These are two aspects that an excellent set-top box needs. When we use TV boxes, we don't need to panic about physical phenomena. Usually, we don't put the set-top box in a high temperature environment or an environment that is not conducive to heat dissipation for a long time. If adequate cooling measures are taken, the situation of box crash and system collapse can be fundamentally avoided, and the service life of the set-top box can be prolonged.
Of course, the set-top box crash and system crash may also be caused by the instability of the system itself or too much software in the system and insufficient running space of the system. At this time, you can consider the following methods to solve the problem:
First, brush the machine to solve the problem once and for all!
Search ZNDS Smart TV Online to find the firmware suitable for your box model, brush it into a stable system according to the brushing method, and then install it in the Betan market. You can watch live TV through all TV software in the Betan market.
But the brush machine is risky and needs to be operated.
Advantages of plastics compared with metals: What are the advantages of plastics compared with metals? In order to improve the competitiveness of products in the current highly competitive market environment, manufacturers have invested a lot of energy in product differentiation, with good surplus rate and low cost. This difference is mainly achieved through design, visual appearance or the demand for smaller and more mature systems with the development of new functions. Economic rationalization of components is another important trend in industries, such as automobiles, equipment, electronics and fields, because it increases the reliability of final products and reduces the total cost.
For these reasons, plastic replacing metal and other traditional materials has become one of the main strategies of product management in many markets.
And this trend is accelerating rapidly, because plastics have more advantages than metals. All these advantages lead to a great increase in productivity and product differentiation.
Compared with plastics, metals still have some advantages, such as higher strength and hardness, inherent thermal and electrical conductivity and flame retardancy.
The great potential of substitute metals runs through the whole industry, and the application of plastic substitute metals has accounted for 15% of the total.
With the development of high-performance materials with special shapes and the use of advanced tools, the optimization of design and molding tools will greatly promote this alternative development trend.
In this metal substitution center, we provide you with a special area focusing on this development trend, aiming at guiding you to choose more suitable substitute materials and providing you with solutions and innovative measures.
The above is about the advantages and disadvantages of TV metal body, and it is about the advantages and examples of the ratio of plastic and metal. I have seen the disadvantages of plastic compared with metal, and hope this will help everyone!
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