What are the harmful substances in paints and coatings? How to prevent the harm of benzene in indoor air? 1. As far as possible, interior decoration materials that conform to national standards and less pollution are used in the decoration. This is the fundamental reason for reducing the benzene content in indoor air. For example, paints, glues, and coatings produced by regular manufacturers are used, and non-polluting or less polluting water-based materials are selected. At the same time, attention is paid to the selection of adhesives. Because there are no rules for the use of adhesives in the various regulations of the architectural decoration industry, ordinary people are Without experience, it is easy to overlook what decorative companies want to use. 2. The choice of construction process. Some decoration companies used paint instead of 107 glue to seal the walls during construction. As a result, the benzene content in the indoor air was increased, and when the paint and waterproof were used, the construction process was not standardized, making the benzene content in the indoor air. Greatly increased, some residents report that one decoration is full of taste, and this high concentration of benzene in the air is very dangerous, not only poisoning people, but also prone to explosions and fires. 3. The labor protection of construction workers should be strengthened. The construction site should pay attention to ventilation and ventilation to reduce the harm of benzene in the air to the human body in the workplace. The paint and coating construction is most afraid of the wind and sand weather, because the dust falling on the paint film will affect the brushing effect. Therefore, this construction is generally carried out under the condition that the doors and windows are closed. If the amount of brushing is large, the room temperature is high, the construction time is long, and the benzene accumulated in the air is too high, it will lead to poisoning. Be careful not to stay in a closed room. 4. Maintain indoor air purification. This is an effective way to eliminate indoor harmful gases. The effective indoor air purifier and air ventilation device can be selected. Or open the windows when the outdoor air is good, which will facilitate the emission and discharge of harmful gases in the room. 5. The renovated house should not be immediately relocated. After the renovation of the home is completed, the house is kept in a well-ventilated environment, and benzene and organic compounds are released after they have been released for some time. 6. To strengthen the safety management of the paint construction site. Paint construction projects should not be done with woodworking such as furniture, heating, or wood flooring. Different materials such as wood, paint, and paint should not be mixed together or in one room. They should be placed separately. Paints and other flammable materials should be stored in ventilated areas. No smoking or cigarette butts should be allowed on the construction site. Fire extinguishers and other equipment shall be prepared at the construction site. 1. Paint. Benzene compounds are mainly volatilized from paints. Benzene, toluene and xylene are indispensable solvents in paints. 2. Additives and thinners for various paint coatings. Benzene is found in a large number of organic solvents in various building decoration materials, such as the thinner material commonly known as Tianna Water in decoration, and its main components are benzene, toluene, and xylene. 3. Various adhesives. In particular, solvent-based adhesives still have a certain market in the decorative industry, and the solvent used therein is mostly toluene, which contains more than 30% of benzene, but it is also used by some companies because of price, solubility, and adhesiveness. Sofas purchased by some families release a large amount of benzene, mainly due to the use of benzene-containing adhesives in production. 4. Waterproof material. In particular, some waterproof paints formulated with raw powder and thinner were tested at 15 hours after operation. The benzene content in the indoor air exceeded the maximum allowable concentration of 14 to 7 times that of the state. 5. Some of the low-grade and counterfeit paints are also an important cause of excessive benzene content in indoor air. What are the hazards to the human body from harmful substances in paints and coatings? 1. Chronic benzene poisoning, mainly benzene has a stimulating effect on the skin, eyes and upper respiratory tract. 2. Long-term inhalation of benzene can cause aplastic anemia. 3. Females are more sensitive to benzene and its homologues than men, and toluene and xylene have a certain influence on reproductive function. 4. Benzene can cause congenital defects in the fetus. Three trees paint paint interior decoration paint decoration home decoration sofa bed function sofa home decoration home decoration home High Speed Door Motor And Control Box
Our company have German SEW Motor, Japan Mitsubishi Controller. Our own brand Hofic servo motor and controller. Chinese famous brand SEJ motor and Holip controller.
About our German SEW Motor and Japan Mitsubishi Controller: It is easy to find the ideal energy-efficient motor for your application at SEW. The series has a suitable design in its range for the globally applicable efficiency classes. Select the power and frequency within this motor design and you have already taken care of the most important selection criteria.All other motor options are of course available independently of the efficiency class. A comprehensive braking concept and cost-optimised built-in encoders ultimately complement the motor range. Comprehensive braking concept and combinations i.e. up to three different brake sizes per motor size featured in the range: Cost-optimised built-in encoders integrated into the motor. Motors for efficiency classes IE1 to IE4.Compact design saves space and costs. Future-proof, also as regards environmental protection (standards). Reduction in operating costs when using energy-efficient motors; our energy-efficient motors conform to the efficiency classes.
About servo High Speed Door Servo Control System: Our rolling gate servo control system is suitable for high speed and high usage soft and hard rolling gate. The whole system is in a small and light package, it has high torque and high operating speed, lower noise, high reliability, smooth and soft operating curves, it`s suitable for high speed and usage environment. The rolling curtain can be controlled by pull switch, push button, Bluetooth, ground radar, ground magnetic sensors. Operating Speed: 1M/s; Operating Width: ＜16 ㎡; Daily operating time: ＞2000 time; Rated voltage: 220v; Rated Output: 0.75 KW/1.5KW.
The system can operated via: 1) control box; 2) inching electronic control; 3) continuous automatic operation; 4) emergency stop; 5) single side operation box; 6) time delay; 7) ground radar and/or magnetic sensors. Please refer to Wiring Terminal for eternal connections.
System has fuse/safety wire shutdown switch for three-phase power protection, fuse/safety wire for operating circuit protection, and temperature sensing relay for motor protection.
Stroke Controller utilizes absolute value encoder. Connect the absolute value encoder and reducer via encoder`s axle, and fix the wings on to the reducer, than insert the aviation plug into plug receptacle.
The mounting screw for the control box must inspect regularly to prevent screw been getting loose and falling off. Check the internal and external wirings. Check and change the oil for the redactor on regular basis.
Precision: The system use Full closed-loop servo control and Double Encoder design. This is to ensure long operating life and to prevent overshooting during operating.
Stability: The system utilizes integrated design concept, in order to simplify internal wiring and prevent any function caused by wiring and terminal connections.
High Speed: Motor max speed is 2500 rpm; door max operating speed is 2 m/s.
Smooth: The torque servo system can adjust torque to the load automatically, and its speed curve mode step less speed regulating to ensure a smooth operation.
About SEJ motor and Holip controller: Three-phase asynchronous motor with magnetic brake has broad uses, It is suitable for various mechanical main drive and auxiliary drive, and it is also used for various required rapid stopping and correct positioning. The braking time within 0.2 second. Electric motor is added the DZM series direct current electromagnetic arrester by the basic series(Y series) electric motor.The protection class of electric motor part is IP44,the arrester part is IP23.if be applicable to bad environment can also make the arrester part into IP44,but customer have to put forward a special request while ordering,the manufactory can design a manufacturing exclusively. Its structure diagram is picture 1 and 2,picture 1 is the structure with hand release.Picture 2 is the structure without the hand release.Its operating principle BE, after being to make the retardation coil(6)to connect direct current power supply,because of the function of electromagnetic force,electromagnet(7)attract gag bit(5),and compress spring(24),make arrester disc(2)away from the friction surface of the gag bit(5)and shield(26)(the electrical motor can immediately operate normally).When the power supply cuts off after,the electromagnet(7)loses electromagnet force,the spring(24)releases the gag bit(5)and compress tightly to arrester disc(2),the arrester function,stop(the motor shaft)quickly,make electric motor shop turning to move,for the second time connect power supply will repeat above-mentioned action.
High Speed Door Motor And Control Box,High Speed Door Motor,High Speed Door Servo Motor,Variable-Frequency Servo Motor Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hfhighspeeddoor.com
Winter decoration must pay attention to ventilation and paint pollution
Everyone has a different understanding of the home, how can we use the limited funds to decorate the perfect home? In the home improvement, many owners are concerned about the issue of renovation costs. Therefore, before the renovation, we must plan well. Only good planning can reduce the cost. Here, Xiaobian specifically for you to integrate the warmest home improvement information this winter, let you dress up the most beautiful love home!