First, shallow scratches
Due to the use of friction and improper daily care, the paint surface of the car has been slightly scratched for a long time, and the primer is not exposed. This scratch is obvious in the sun. It can be removed by a professional polishing method.
Second, the traffic "film"
The car generates a strong electrostatic layer due to friction during driving. Static electricity has a strong adsorption capacity for dust, oil and chemical dust, and it takes a long time to form a hard traffic film. It is easy to cause oxidative corrosion of the paint surface and can be polished and polished.
Third, the paint surface oxidation
Under the illumination of the sun's ultraviolet rays, the paint film continuously evaporates the oil into the air to protect itself. If the time is long, the oil on the lacquer will be dispersed. The brightness and depth of the paint surface are greatly reduced, so that the paint surface is gradually whitened to form an oxide layer, which shortens the life of the paint. It can be observed by the naked eye that the paint is black, white and dull. Severe oxidation can be treated by grinding and polishing.
Fourth, the etch mark
The etch is a surface abrasion. Insects, bird droppings, sap, tar, and asphalt all have etch marks. Only a very small amount of abrasive polishing is available.
Five, crack
If you do not take the necessary care for the paint, the metal paint may produce a very fine crack, which will continue to penetrate the paint until it "breaks through" the entire paint layer. This phenomenon is called "cracking." Sometimes cracks can occur due to problems with the quality of repainting. If there is car wax in the crack, you will find that the car body has a streak (scratch) crack. Regular waxing can reduce cracking.
Sixth, water marks
The water marks are ring-shaped. It is the trace left after the water droplets evaporate. The oxidized car and the car that is often washed by the washing spirit are more likely to be infected with water marks. When the water marks are slight, waxing and polishing can be cured or painted when it is cured.
Seven, faded
Soots and pollutants in the atmosphere are the main causes of fading and discoloration of paints. Fading is different from oxidation. When fading occurs, uneven paint chromatic aberration occurs. Medium and light fading can be treated by grinding and polishing. In severe cases, it must be repainted.
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.
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Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.highspeedshutterdoor.com