Thema von yanyan im Forum Offizielle Ankündigung...
Advantages of xenon lamp aging test chamber
The xenon lamp aging test box mainly simulates "the xenon arc lamp of the full sunlight spectrum to reproduce the destructive light waves existing in different environments, which can provide corresponding environmental simulation and accelerated testing for product development and quality control." As a well-known domestic brand, Shanghai Lin I will tell you about the advantages of this product frequently:
The xenon lamp aging test box is a comprehensive weather test device, which can also test the light resistance of high-grade materials. At the same time, the polymer material is exposed to artificial light sources that simulate the sunlight spectrum through the glass to evaluate the light resistance of the material.
The cooling system of the test box is automatically controlled by the temperature controller; the equipment has a timing device. In order to record the working time of each test, the equipment is equipped with a timer when using the panel, which can control the equipment time and end the equipment at a fixed time. It will automatically shut down; in order to make the xenon arc lamp work normally, the protection device does not damage its equipment, except that the xenon arc lamp is ignited on the circuit and needs to be interlocked with the cooling water (the xenon arc lamp cannot be lit when the cooling water is not working) , If the xenon lamp is abnormal during operation, the xenon lamp will be automatically extinguished, and it will also stop the entire equipment from working.
Not only that, the xenon lamp aging test box also contains the following safety protection measures: Shanghai Linpin’s patented technology unique power-off protection design, power supply overload short-circuit breaker; protection of people and machinery; control circuit overload, short-circuit fuse, Over-temperature protection and power supply undervoltage.
Thema von yanyan im Forum Offizielle Ankündigung...
UV aging test box control system
For ordinary people, everyone may not know much about the ultraviolet aging test box. In fact, this is a kind of using fluorescent ultraviolet lamp as the light source, and controlling the size of the ultraviolet lamp radiation to irradiate the sample for a fixed time to obtain what we want. The purpose of the aging resistance result is to understand how long the product can be aging after being exposed to ultraviolet rays in nature, so that the product can be adjusted. Then when using the UV aging test box, its control system consists of several parts, let's take a look together below.
1. Ultraviolet circulatory system
The amount of ultraviolet radiation is measured by the display and the internal ultraviolet radiometer, and the illumination and condensation are controlled at the same time. In the internal conditions, multiple products are alternately tested for aging.
2. Humidity circulation system
Since temperature control is the basis, it is the humidity that exists in nature that accelerates the aging process. Therefore, in the UV aging test box, there are multiple conditions of temperature and humidity running at the same time.
3. Temperature system
Generally speaking, as the temperature increases, the reaction speed increases. Therefore, during the entire UV exposure test, temperature control is particularly important. The test temperature selected in the test is accelerated to match the high temperatures encountered by the raw materials in practical applications. The UV temperature in the equipment can be set from 50°C to 80°C, which actually depends on the light intensity level and the average indoor air temperature. Temperature adjustment is a series of operations based on the control panel, using the control panel to set the equipment program to run.
Inside the box, the ultraviolet aging test box uses black aluminum plates and temperature sensors to control the temperature. During the heating process, use a blackboard thermometer to control the heating method to make the temperature more stable. The radiometer probe adopts a fixed type, and there is no need to install and unload the probe when in use.
Thema von yanyan im Forum Offizielle Ankündigung...
The principle of the glow wire tester
The glow wire tester is suitable for the fire hazard test of electrical and electronic products, household appliances and their materials, and simulates the thermal stress caused by heat sources or ignition sources such as hot components or overload resistors in a short time.
Test principle: The glow wire tester simulates the parts of insulating materials or other solid combustible materials that are easy to spread flames inside the equipment, which may ignite due to the glowing wires or glowing components. Under certain conditions, such as fault current flowing through the wire, component overload, and poor contact, some components will reach a certain temperature and cause the nearby parts to ignite.
The working principle of the glow wire tester: The nickel-chromium wire (U-shaped glow wire head) of the specified material Φ4 mm is heated to the specified temperature (300 ℃ ～1000 ℃ for the test with high current, and then it is burned horizontally at the specified pressure (1.0N). Burn the test product for 30s, whether the test product and the bedding are ignited or lasted to determine the fire hazard of the finished electrical and electronic equipment; after the test is completed, record the burning time, ignition time (Ti), flame extinguishing time (Te), and combustible Sexual Index (GWFI).
Glow wire head: to measure the temperature of the glow wire, an armored thin-wire thermocouple with a nominal diameter of 0.5mm is used. The wires are nickel-chromium and nickel-aluminum (K type) wires, which are suitable for continuous operation at temperatures up to 960°C. The welding point is located in the sheath, and the thermocouple used to measure the temperature of the glow wire, the metal of the sheath can withstand a temperature of at least 1050℃.
Leather and Textiles Physical Property Measurement
The textiles and leather industries employ millions of people worldwide, turning raw materials such as natural fibres (cotton and wool) and synthetic fibres (polyester) or treated, tanned hide into finished products such as clothes and footwear, using multiple complex processes.
Research and Development in the leather and textiles industries are now more important than ever before. Customers are driven to purchase eco-friendly alternatives to traditional materials, seeking out textiles that require a lower volume of water for growth (e.g. hemp as an alternative to cotton), recycled leather and textiles, textiles that consume a large amount of carbon dioxide during their growth (e.g. bamboo) and vegan alternatives to silk and leather. Vegan leathers were until recently made from PVC. However, novelty value and customers’ desire for reducing plastic manufacture, have caused plant-based leathers to become increasingly popular. These can be made from a wide variety of plant materials, including pineapples, apples and crop waste.
These alternative materials must still perform satisfactorily, in applications that cause them to be subjected to high and fluctuating stresses, and frequently harsh environmental conditions.
Thema von yanyan im Forum Offizielle Ankündigung...
How PBX Phone Systems Can Be an Asset to Your Small Business
As you can imagine, linking all of your internal phones together can cut costs while also improving your customer service. Here’s what you can expect when you adopt a PBX phone system:
Streamline Internal Communications A PBX system helps keep everyone in your organization in easy and constant communication. Some of the features that enable this include call recording, voice mail, and ring groups.
If you’re not familiar with the term ring group, it’s a way of setting up rules for calls. For example, if a customer calls your phone number, do all of the extensions ring? Or, does only the receptionist’s line ring?
Ring groups also allow you to set up different rules based on the phone number that’s being dialed. For example, one phone number can ring the front office, another can be routed to customer service, and a third line can go to Accounts Payable or Accounts Receivable. The possibilities with this set up are virtually infinite.
What are the advantages of VoIP services PBX System Cloud PBX
Thema von yanyan im Forum Offizielle Ankündigung...
Internet Telephony PBX System
Intuitive, Ease-of-Use IP PBX Management
IP PBX telephony system is easy to set up and manage thanks to a perceptive web-based user interface and quick setup wizard. Since it is Asterisk-based equipment, the entire benefits of the pre-loaded SIP can be had as any other enterprise-level appliance would come equipped with the feature. The IPX is able to accept 30 user registrations, and easy to manage a full voice over IP system with the convenience and cost advantages. The equipment is best paired with PLANET color IP phones to get the function going smoothly and to have a seamless connection between the software and hardware.
Off-net Calling Capability, Call Restriction, Call Access Control
The IPX, integrated with 2 FXO ports, is a feature-rich PBX system that supports seamless communications between existing PSTN calls, analog, IP phones and SIP-based endpoints.
Replacing Old PBX Easily without New Wiring
Cost-effective, easy-to-install and simple-to-use, the IPX converts standard telephones into IP-based networks. It enables the service providers and enterprises to offer users traditional and enhanced telephony communication services via the existing broadband connection to the Internet or corporation network.
Wireless Office Communication System-Wireless IP PBX System
Thema von yanyan im Forum Offizielle Ankündigung...
Corrosion resistant vacuum unit
When we use corrosion-resistant vacuum unit, we will add check valve. You may not know the reason. Next, Schindler vacuum pump will give you an analysis of why to add check valve to corrosion-resistant vacuum unit.
1. The main function of vacuum pump is to install check valve.
2. Protection system: at the moment of pump shutdown due to fault, the inlet and system connection of corrosion-resistant vacuum unit are in vacuum state, and the outlet is generally connected with the atmosphere. The pressure will bring water into the system and destroy the system vacuum. In order to protect the system, check valves are usually installed at the pump inlet and system connection.
3. In order to protect the pump body and other equipment, a check valve is usually installed at the outlet of the corrosion-resistant vacuum unit.
4. Now more and more corrosion-resistant vacuum units install the check valve at the outlet, which can protect the pump and system.
Thema von yanyan im Forum Offizielle Ankündigung...
Analysis on installation of water ring vacuum pump unit
The key to the installation technology of water ring vacuum pump unit is to determine its installation height. This height refers to the vertical distance between the water surface of water source and the center line of impeller, which can not be confused with the allowable vacuum height. The vacuum value on the water ring vacuum pump's water inlet section is indicated on the nameplate or product manual of the water ring vacuum pump, and it is under 1 standard atmospheric pressure and when the water temperature is 20 ℃, The installation height of water ring vacuum pump should be allowed to absorb the vacuum height after deducting the loss head of the suction pipe. It needs to overcome the actual terrain suction height.
The installation height of water ring vacuum pump unit should not exceed the calculated value, otherwise it will not be able to pump water. In addition, the influence of the calculation value is the resistance loss head of the suction pipe. Therefore, the shortest pipeline layout should be adopted, and the fittings such as elbows should be installed as few as possible, and the water pipe with larger diameter can also be considered to reduce the flow velocity in the pipe. It should be pointed out that when the elevation and water temperature of the water ring vacuum pump installation site are different from the test conditions, the calculated value should be corrected. That is, the atmospheric pressure at different altitudes and the saturated vapor pressure when the water temperature is higher than 20 ℃.
When the water temperature is below 20 ℃, the saturated vapor pressure can be ignored. In terms of pipeline installation technology, the suction pipe should be strictly sealed, and no air or water leakage is allowed. Otherwise, the vacuum degree at the water inlet of the water ring vacuum pump will be destroyed, and the water output of the water ring vacuum pump will be reduced, and even the water can not be pumped in serious cases. Therefore, it is necessary to do a good job in pipeline interface work to ensure the construction quality of pipeline connection.
Thema von yanyan im Forum Offizielle Ankündigung...
double stage rotary vane vacuum pump principle
The working performance of two-stage rotary vane vacuum pump is composed of high-pressure stage and low-pressure stage. Its suction port is connected with vacuum container or vacuum equipment. During operation, a large amount of gas in the container will be inhaled and discharged. When the rotary vane vacuum pump obtains the vacuum, the exhaust valve plate of the high pressure stage will be closed, and the gas inhaled by the high pressure stage will be transferred to the second stage, which will be inhaled and discharged by the second stage, so that the vacuum equipment can obtain a certain vacuum.
The technical parameters of the rotary vane vacuum pump are 6 × 10-2Pa. According to the user's use, the vacuum booster pump can be equipped. The rotary vane vacuum pump is used as the front stage pump. As the suction force of the booster pump is strengthened, the front stage pump is continuously removed, which can make your equipment obtain higher vacuum.
Thema von yanyan im Forum Offizielle Ankündigung...
The dispenser of the diaphragm pump is directly connected to the diaphragm pump and does not need to install three or four links. It can provide multiple interfaces, and make the dispensing of the dispensing more uniform. It can also make the atomization of the medicine liquid better, and the structure is simple, which can effectively improve the spray effect of the dispensing machine. The adopted technical scheme is: a cylindrical tank body is included, a number of convex interface ends are arranged at both ends of the tank body and around the cylindrical tank body, an interface connected to the inside of the tank body is arranged in the interface end, an interface thread is arranged in the interface, and an inlet is arranged at one side of the tank body. The tank body material is plastic, which can develop the corrosion of liquid medicine. At least a metal ferrule is arranged at the outer side of the inlet or the interface end, a metal ring can also be arranged at the inner side of the interface or the inlet, and an interface thread is arranged in the metal ring, which is also more firm. By setting a cylindrical tank, a number of convex interface ends are arranged at both ends of the tank and around the cylindrical tank, an interface connected to the inner part of the tank is arranged in the interface end, an interface thread is arranged in the interface, and an inlet is arranged at one side of the tank body. By directly connecting the cylindrical tank to the diaphragm pump, multiple can be provided without installing another three-way or four-way connection The interface can also make the dispensing of the medicine liquid more uniform, and can also make the atomization of the medicine liquid better, and the structure is simple, which can effectively improve the spray effect of the dispensing machine.
Related products:
Ferrochrome aluminium resistance band How To Maintain High Temperature Resistance Belts How Should Vacuum Oil Filter Choose Filtration Accuracy
Other related products:
Liquid ring vacuum pump What is liquid ring vacuum pump? Liquid ring vacuum pump manufacturer
Alle Spielegrafiken und Spieletexte sind Eigentum der Bigpoint S.à.r.l. and Co, SCS //
Diese Seite wird privat betrieben und steht nicht in Verbindung mit der Bigpoint S.à.r.l. and Co, SCS //
09.11.2021 09:46
for the test with high current, and then it is burned horizontally at the specified pressure (1.0N). Burn the test product for 30s, whether the test product and the bedding are ignited or lasted to determine the fire hazard of the finished electrical and electronic equipment; after the test is completed, record the burning time, ignition time (Ti), flame extinguishing time (Te), and combustible Sexual Index (GWFI).
S-Fans Forum » Foren Suche nach Inhalten von yanyan
