Medium frequency induction furnace It is a very important piece of equipment for a foundry, and its quality directly affects the production efficiency of the entire foundry workshop. A good medium frequency induction furnace is not only durable but also energy-saving, which can save a lot of labor and time costs for the enterprise. Therefore, users should not only consider the price when choosing
Medium frequency induction furnace Here are some suggestions from professional technicians on how to choose a good
Medium frequency induction furnace equipment:
1. Copper Busbar: Check whether the connecting copper busbar is the original color of red copper. If it is, then it is not correct. Regular power equipment copper parts need to be white plated, silver plating is better, and tin or nickel plating is also acceptable. Because the copper surface is easily oxidized, and it will become more and more serious, the contact resistance will become larger and larger, and the power consumption will gradually increase. A few manufacturers save the plating process to save costs, and as a result, the manufacturers save a little money, but the users have to pay for it unknowingly for a long time. If you have to save even this little money, you should be alert - there are many things that can be saved on the equipment.
2. Aluminum case capacitor: There are ordinary type, standard type, and enhanced type. Generally, it can be seen from the external dimensions and weight. The enhanced type is better but the price is higher. At present, the 0.75-2000 capacitor technology is not mature, although the price is low, the life is generally not long.
3. The quality of the circuit breaker (air switch) is also obvious at a glance: the one with a wooden handle on the right belongs to the obsolete model -- DW10 or DW16, or you can consult an electrician. This kind of air switch has poor protection performance and the price is several times lower. When the equipment is normal, the circuit breaker is just a switch, which seems not very important, but in the event of an accident, this is a protective barrier, and the consequences would be disastrous if it fails.
4. Copper materials have different qualities and thicknesses, which directly affect performance and power consumption. Although the thickness of copper tube products cannot be seen, it can still be inferred from the appearance: thin copper tubes are more likely to be dented in the middle when bent than thick ones. If the induction coil is severely dented, it must be thin. Specify the thickness in the contract, and buy copper tube accessories by weight, not by number.
5. Reactor: You can look at the overall size, including the size and thickness of the copper tube core. Thick copper tubes are good, but thin silicon steel sheets are good. Silicon steel sheets are generally tens of thousands of yuan per ton, and good ones are tens of thousands of yuan per ton. A reactor that is one level smaller will cost thousands of yuan less. A smaller one can also be used, but it will consume more power and affect the protection performance.
6. The radiator is one of the main accessories used more often in medium frequency equipment. What is easier to detect is the lack of materials on the triangular covers on both sides. The normal thickness should be about 5mm, otherwise it is difficult to maintain the rated pressure. How much is iron worth? You should be alert if you want to save even this little bit!
7. Insulation treatment: The insulation treatment of the inductor surface has an important impact on preventing electric furnace arcing, arcing, eliminating power supply damage, furnace penetration and other major safety accidents. The insulating paint needs to have good high temperature resistance, adhesion, and water resistance. At present, the industry generally recognizes that the TSC-L ultra-high temperature insulating paint or APC-H+ high temperature arc-resistant insulating enamel from Shanghai Gengyi Technology Co., Ltd. is used to insulate the coil surface.
