After we have spent a lot of thought and bought a suitable house, we should consider how to decorate it. Nowadays, besides those who want to save money and know the point decoration people will choose their own outfit, most people will look for a decoration company to decorate the house, half or all inclusive. The decoration company can give us advice for the professional, which can make our decoration more time-saving and worry-free. But what should a decoration company do? Today Xiao Bian came to explain to you the knowledge of how to choose a good decoration company . Let's learn about it together! How to choose a good decoration company 1---- consider its own economic strength When we make choices, we must first combine our actual economic conditions. After we buy a house, we may not have enough funds left, or we still owe banks for loans for several decades. If you are in such a situation, don't be too eager to upscale in the decoration, the best is the right one. We must consider our own ability to bear, and avoid letting ourselves fall into a tight situation after the renovation. How to choose a good decoration company 2---- to examine the strength of the decoration company If you have a company that looks at the centerpiece, it must be a thorough review of the company. For example, what projects it has done before, how the owners evaluate it, whether it has professional designers, whether it has a professional construction team, whether there is a fixed office space, whether there is a relevant business license, and so on. How to choose a good decoration company 3----and decoration company to talk about price and design After we have chosen the company for the center instrument, next we must talk to the designer about space layout and design in all aspects. Of course, there is also a clear price to understand what the other party's price is and how it is charged. Whether the quotation on the decoration contract is complete, whether there is any missing item or repeat, etc., whether the brand specification number and model of the material are marked. How to choose a good decoration company 4---- View the decoration company's efficiency and management model In addition to comparing prices, we should also understand each other’s team, such as the quality of the other party's construction team, whether it is responsible, and so on. Whether this company has a complete management system, its quality of service is good or not, whether it is a person with multiple jobs or a clear division of labor between everyone, we all need to understand. Xiaobian's words: In addition to the above, we can also personally visit the other side of the site to view their construction quality, or you can visit the other side of the renovated house. After all, design drawings are beautiful and just drawings. Ultimately, it depends on the actual level of construction. Therefore, when we examine the price, we should also consider in many ways, so as to help you choose the right decoration company. The above is the knowledge of choosing a good decoration company Xiaobian and everyone to explain, and hope to give you some reference! More related content, you can pay attention to Qijia information, follow-up will present more exciting content! How to choose the decoration company
PEI plastics (polyetherimide plastics) is an amber transparent solid. It has an inherent flame retardancy and low smoke concentration without adding any additives. The oxygen index is 47%, and the combustion level is ul94-v-0, and the density is 1.28~1.42 g/cm3.
PEI plastics has a strong thermal stability, and even the non-enhanced PEI plastics still has good toughness and strength.Therefore, the high thermal stability of PEI plasticsis used to make high temperature heat-resistant devices.
PEI plastics has excellent mechanical properties, electrical insulation performance, radiation resistance, high temperature resistance and abrasion resistance, and can be used by microwave.The PEI plastics also has good flame retardancy, chemical resistance and electrical insulation.Vitrification transformation temperature is very high, up to 215 ℃.PEI plastics also has a very low shrinkage rate and good mechanical properties.Adding fiberglass, carbon fiber or other fillings to enhance the purpose of modification;And other engineering plastics of heat-resistant polymer alloys, can be in 160 ~ 180 ℃ under the working temperature of use for a long time.
The long-term use of polyether amines in the us underwriters laboratory is 338T and 356T (according to the grade), and the combustion rating reaches UL94V - 0 (10 mille thickness).The oxygen index is 47, and the polyetherimide is in line with the requirements of the aircraft for the requirements of the FAA's flame retardant and thermal release material standards.It has a glass transition temperature of 419F and is allowed to be used intermittently under 392F, at higher temperatures, resulting in a short-term shift.Under 356T, the tensile temperature and flexural modulus were above 41 and 2068MPa respectively.The material reinforced with Glass Fiber and carbon fiber has higher strength and rigidity under the transition temperature of glass.
PEI plastics long-term resistance to creep under high temperature and stress allows it to replace metals and other materials in many structural devices.PEI plastics shows good performance in variable temperature, humidity and frequency.The low dissipation factor at GHz frequency makes the polyetherimide have high microwave wearability.Its ionic pollutant is low, at 250F100 % R.H.And 207kPa after 120 hours of water extraction with the conductivity, at 20 megaohm, it can be used as an electronic sensor element insulation.
PEI plastics is a fine coating and film forming material which can be used for the coating and film of electronic industry, and can be used in manufacturing aperture < 0.1 mu m, with high permeability microporous diaphragm.It can also be used as high temperature adhesive and high strength fiber.
Application field
Since PEI plastics has excellent comprehensive and balanced performance, PEI plastics has been applied to the departments of electronics, motor and aviation, and used as metal substitute materials for traditional products and cultural life supplies.Using PEI plastics instead of metal to make optical fiber connector, PEI plastics can optimize the structure of the component, simplify its manufacturing and assembly steps, and maintain a more precise size.Used in automobile industry, such as high temperature fittings for manufacturing, the high power lamp and light, control the car cabin outside temperature sensor (air conditioning temperature sensor) and the control of air and fuel mixture temperature sensor (effective combustion temperature sensor).Also can be used for high temperature erosion of lubricating oil vacuum pump impeller, distilling apparatus that operate at 180 ℃ of ground glass joints (following), the lighting of anti fog light reflector.
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