This failure occurs only when there is residual stress in the Air Cooler Mould(FURNITUREMOULD) that may be affected by the aggressive environment. For environments such as low concentrations of ozone in the atmosphere or seemingly mild materials (such as Vaseline Vaseline), the term „aggressive“ may be considered a misnomer. However, both are aggressive in emphasizing plastics. The only way to avoid cracking and cracking is to produce a stress-free moulded article.

Like cracks and cracks, such defects are signs of stress formation in aggressive environments. Sometimes it is seen in household hollowware that it has been used in household detergents. For example, when using a washing bowl, the liquid detergent almost always pours into the centre of the bowl before adding water. When the bowl is filled with hot water, the high concentration of detergent and the sudden increase in temperature, coupled with the freezing stress at the bottom of the bowl, causes the surface to peel off like onion skin and show signs. Layered.

Another common cause of delamination is the excessive use of release agents, particularly release agents based on silicone oils and resins. These can only be used with great care, not in the moulding of polyethene. If gate sticking or other extraction difficulties occur, the moulding technique should be checked. With a well-designed air cooler mould and the right moulding technology, no release agent is required.

The deformation, in this case, means that it is performed by moulding instead of the desired shape. It is different from warping because it implies that the shape is never correct. The most common cause of deformation is that the moulding is not allowed to cool sufficiently before being removed from the air cooler mould, and the mould has been physically pushed out of shape by an ejector or other means. For example, a ram that acts on a still soft moulded part will stretch the material, or a very soft portion of the moulded part that is prematurely removed from the air cooler mould may flow slightly. Although fixture cooling in moulds or special fixtures after air cooler mould extraction is rarely recommended, it is important to ensure that the cooling time is long enough for the moulded parts to be strong enough for handling.

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The Components Of The Passenger Elevator

Posted: 26th März 2019 by odson don in Allgemein
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Whether it is a مصعد الركاب or a cargo elevator, the structure is the same. The composition of the passenger elevator is divided into eight parts, as described below:

Traction system:

The main function of the traction system is to output and transmit power to make the elevator run. The traction system is mainly composed of a traction machine, a traction wire rope, a guide wheel and a reverse rope wheel.

Guidance system:

The main function of the guiding system is to limit the freedom of movement of the car and the counterweight so that the car and the counterweight can only move up and down along the guide rail. The guiding system is mainly composed of a guide rail, a guide shoe and a rail frame.

Car:

The car is an elevator component that carries passengers and cargo and is the working part of the elevator. The car is composed of a car frame and a car body.

Door system:

The main function of the door system is to seal the landing entrance and the car entrance. The door system consists of a car door, a landing door, a door opener, and a door lock device. Weight balance system: The main function of the system is to balance the weight of the car. In the elevator work, the weight difference between the car and the counterweight can be kept within the limit, and the traction drive of the elevator is guaranteed to be normal. The system consists mainly of counterweight and weight compensation devices.

Electric drive system:

The function of the electric drive system is to provide power and implement elevator speed control. The electric drive system consists of a traction motor, a power supply system, a speed feedback device, and a motor speed control device.

Electrical control system:

The main function of the electrical control system is to control and control the operation of the elevator. The electrical control system is mainly composed of an operating device, a position display device, a control panel (cabinet), a leveling device, a layer selection device and the like.

Security system:

Ensure the safe use of the elevator to prevent accidents that endanger personal safety. It consists of a speed limiter, a safety clamp, a buffer, and an end station protection device.

High efficiency vector VVVF inverter system:

The passenger elevator adopts the vector-controlled digital closed-loop VVVF inverter, which can accurately control the host rotating torque in real time according to the actual load of the car, the uplink and downlink speed, and the adjustment of the current magnitude and phase to ensure the smooth running of the elevator.

There are many things to consider when designing smart Solar led street light(CLASSIC) for desert areas. Working in the desert requires efficiency and precision due to extreme temperatures.

The desert is very hot during the day, but it is very cold at night. When designing smart solar lights for desert areas, there is a need to address the huge differences in temperature differences. The use of high-strength aluminum profiles and unique heat sinks keeps the integrated solar street lights from overheating.

If not cleaned often, the sand will cover the solar panels, which greatly affects the efficiency of the solar panels. In order to solve this problem, self-cleaning solar street lights are on the stage.

Built-in intelligent solar LED street light control system, working twice a day, consumes only 0.5 seconds per day and takes about 3 minutes. No sand or dust accumulates on the panel, and the robot solar street light can work perfectly even after 5 years.

The concrete base of the solar LED street light is planted deep underground, so any sad transfer will not let it go. Solar street lights can be easy to install, but they can also be rugged in any weather.

In addition to all of the above, solar LED streetlights are also designed with a smart solar streetlight control system that allows you to monitor the working status of solar panels, batteries, controllers, LEDs, even in your home. In addition, it can be adjusted to your own home. The best working mode based on local weather and sunshine data.

If you are ready to upgrade to a more efficient lighting system, for more information, please click Led street lights Manufacturers.

The Development of Public Lighting

Posted: 25th März 2019 by xiuxiu in Allgemein

When more concerted efforts are made to open the street, the use of lanterns hanging on irons (lampposts) is usually the responsibility of the police. In Paris, public lighting(CLASSIC) will later be paid from the police budget and is often seen as unreasonable. It is seen as part of the repositioning of Paris, a place that is not well suited to the revolution. In the 1848 uprising, the revolutionaries smashed the streetlights to move in undiscovered cities. Lighting has become a tool for social control.

This big leap came from the first natural gas in the UK, and the first ignited street in 1807 was the Pall Mall. Natural gas lamps are not new. As early as 500 BC, China used volcanic gases fed through bamboo pipes to illuminate Beijing’s streets, but in Europe and the United States, they ushered in a new era of streets, 24 hours of consumption. possibility.

After several decades of public lighting, the streetlight completely changed the city. It not only extended the time for working in the street, but the poor who could not illuminate the room suddenly found that the streets were brighter than their houses, occupying the streets at night, often making The authorities are upset.

On the one hand, the 18th and 19th century prints show people reading under the bright lights of big cities, saving their eyes and avoiding dim domestic candlelight.

If you are ready to upgrade to a more efficient lighting system, for more information, please click Led Public lighting.

LED street lights are typically powered by photovoltaic panels that are mounted on the lighting structure or integrated into the pole itself. The photovoltaic panel charges a rechargeable battery that powers a fluorescent or LED light at night. China has become a well-known country in the international market and is able to supply a variety of LED street lights. Suitable for any customer needs, however, in the Chinese market, LED street lights are still a growing business sector. There are only a few Led street lights Manufacturers(CLASSIC) in China that use battery panels as a battery solution. Therefore, finding the perfect LED street lights manufacturers in China is still a very tricky way to overcome. In order to find and find the best-LED street light manufacturers in China, buyers must keep the following points in their minds so that their experience in China’s LED street lights manufacturers is smooth and stress-free as much as possible.

Battery: One of the most prominent features of the LED system is the battery, which operates the entire LED lighting system. Contrary to popular belief, batteries made of “ternary” or ternary lithium cannot be used for LED lamps because these batteries are more prone to weather changes and can be heated or frozen quickly. On average, the “ternary” lithium battery will hardly last for two years, and replacement is not a viable option, especially for LED systems, which are difficult to replace. Instead, importers should look for Chinese LED street lights manufacturers who deal with suppliers that produce higher standard quality batteries, which will ensure better deals for buyers.

In addition to batteries, other high-performance and reliable LED street lights manufacturers in China to define components that use MPPT controllers, heat dissipation levels, lumen efficiency in LEDs, high-efficiency battery counts, and stable, high-performance connectors.

If you are ready to upgrade to a more efficient lighting system, for more information, please click Solar led street light.

In addition to important energy savings, Led Public lighting(CLASSIC) also provides better lighting quality, improved road safety, longer life, and does not contain the harmful substances contained in many old technologies.

According to BASE analysis, the challenges of LED public lighting in many cities in Switzerland include:

The annual municipal budget requires a large amount of upfront investment to compete with other expenses.

Uncertainty about new technologies.

Municipalities are risk takers who predict energy and cost savings and the adequacy of technology choices.

Fragmented market. In Switzerland, there are 2,396 cities, the vast majority of which have fewer than 10,000 residents.

To help overcome these obstacles and successfully exploit these enormous potentials, the BASE is working with Echo to study how municipalities can be supported to upgrade their public street lighting systems, including through citizen-based investments.

BASE estimates that there are 775,000 lighting points suitable for upgrade. In five years, upgrading all the old points will save 130 GWh of electricity per year – enough to power nearly 25,000 homes or all houses in Biel – and reduce CO2 emissions by 11,700 tons – enough to take 6,500 from the road car.

If you are ready to upgrade to a more efficient lighting system, for more information, please click public lighting.