Explosion-proof electrical motor shall not be taken; Removing maintenance, can't use parts of the explosion-proof surface as a lever fulcrum, more do not allow the knock or hit explosion-proof surface. Removing the motor, should first take cover lee, fan, reoccupy sleeve wrench remove end cover and the bearing cap bolts, then, the axial impact or copper bar with log shaft extension, make the end cover and stand apart, finally remove the rotor. Dismantled parts, should be laid aside on the explosion-proof surface, and rubber pad or cloth cover, tighten bolt, spring cushion, etc. Be careful not to lose. Dip coating and assembly, explosion-proof surface adhesion of insulation varnish or dirt should be cleaned, may not be scratching with iron and other hard objects, but can use oil stone grinding uneven places. If the explosion-proof surface damage, tin-lead solder must use HISnPb58 -2, the flux of 30% concentration of hydrochloric acid (The steel parts)Zinc or tin tin 58 to 60% of the solder, flux for ammonium chloride 30%, zinc chloride 70%, add water mixture (100 ~ 150%For cast iron)The combination of weld, solder and parts wants firm, raised portion to smooth, meet the finish. In order to prevent the explosion-proof surface rust, should daub oil or 204 - on the surface of the explosion1 the displacement type anti-rust oil. Selection of explosion-proof electrical equipment: divided into a dangerous sites to meet the danger zone to choose corresponding electric explosion-proof type; Second, we must according to the dangerous environment possible to select the kinds of inflammable and explosive gas/dust explosion-proof electrical equipment level and the temperature of the group; Three is to consider other environmental conditions affect the performance of explosion-proof (For example, chemical corrosion, salt fog, rain, high temperature and high humidity, sand and dust or vibration)； Four is to ensure that the particularity of installation maintenance; Five is to choose a flame-proof certification and national certification of product accordingly. Environmental requirements: the application of explosion-proof electrical equipment has flammable and explosive gas/steam explosion hazard environment/workplaces. With the explosion of the combustible dust hazard environment/workplaces. Flammable and explosive gas/steam and combustible dust existing environment/work sites and at the same time, in the solid state chemical products workshop and its transportation, packing, weighing and coating process device, this kind of place is common. Along with the development of the modern chemical industry, the situation will become more popular, so the selection of explosion-proof electrical equipment has such places more and more cause the attention of design department and petrochemical enterprise. The above three cases and at the same time there is corrosive medium, and other special conditions (High temperature and high humidity, low temperature, sand dust rain, vibration)The influence of environment/workplaces. Explosion-proof electrical equipment selection: according to the explosion hazard degree of high and low, gas/steam for the dangerous sites is divided into: 0, 1 zone and 2 zone, which mainly depends on the source of dividing (Explosion hazards)Release degree, of course, places in the building structure and the ability of the ventilation and the place of natural factors will affect its classification, and even influence is very big. In modern petrochemical project sites accounted for about 60% of the above 2 area, district 1 sites accounted for about 20 to 30%,; Old chemical enterprises in general 1 zone and 2 zone place each account for about 50%. 0 district sites generally confined to the petroleum and chemical devices or drains smaller area. For 1, 2 place, enterprises generally in order to improve the safety degree, are willing to choose 1 area use explosion-proof type of electrical equipment. If the applications/sites is outdoor or rain 2 zone, there is a slight corrosion, sand and dust are often willing to choose the capability of protection of explosion-proof type electrical equipment, such as: increased safety explosion-proof composite 'DE', increased safety type 'e', 'n' type, etc. In addition, the temperature group is willing to select the above application environment gas ignited temperature group. Explosion-proof electrical products with high quality, embodied in its electrical properties and explosion-proof structure design is reasonable, the explosion parameters and environmental indicators to meet the requirements of application place, can after installation, long-term use, maintenance and overhaul still have explosion-proof performance. Manufacturing explosion-proof electrical products must strictly implement the national standard of the special requirements of related regulations and application environment. At present, our factory use explosion-proof electrical appliances and lamps and lanterns products due to market competition and poor safety awareness of many factors, exists generally low safety margin. The safety margin is: the product is not only to meet the prescribed standards, but also to ensure that after the installation, use and maintenance explosion-proof performance cannot fail. Quite a part of the product only in order to save raw materials, reduce cost, achieve test samples to meet the basic requirement of the standard, made explosion-proof certification, and ignore the user in the process of use explosion-proof performance failure. Correct installation and use of maintenance to ensure the safety of explosion-proof performance: the characteristics of the structure of the explosion-proof electric apparatus, process, cause the explosion-proof quality guarantee and other industrial equipment has great difference. General industrial equipment as long as guarantee the quality of products manufactured meet the requirements, the user after installation is basic to ensure the quality. Explosion-proof electrical equipment not only to ensure the quality of explosion protection safety in the process of manufacturing, and to ensure proper installation, use and maintenance, can we truly achieve the goal of explosion-proof. So, explosion-proof electrical equipment manufacturing quality and the correct selection, installation, maintenance, in the practical application of explosion-proof performance guarantee of the importance of the accounts for 50%. If the explosion-proof electrical equipment selection, installation and maintenance is undeserved, conceal the unsafe factors more dangerous than the explosion-proof electrical equipment, easy to cause paralysis of the consciousness of the user. Therefore, manufacturing enterprises in the design and manufacture, want to consider the user may be in use process cause failure problem. the main products: stepper motor, brushless motor, servo motor, stepping motor drive, brake motor, linear motor and other kinds of models of the stepper motor, welcome to inquire. Telephone:
