On 2018-08-08 14:48:54
Heat treatment of trolley furnace
Trolley furnace belongs to energy-saving periodic operation furnace with super energy-saving structure. It adopts composite fiber insulation, ultra light and high strength micro bead vacuum ball energy-saving brick, furnace mouth anti impact brick, automatic sealing trolley and furnace door, integrated rail connection, no need for basic installation, and can be used on the horizontal ground. The trolley furnace is mainly used for the heat treatment of high chromium and high manganese steel castings, gray iron castings, nodular iron castings, rolls, steel balls, crusher hammers, wear-resistant lining plates, quenching, annealing, aging and various mechanical parts.
Before using the trolley furnace for heating, the trolley loads materials outside the furnace, and the heating parts are placed on the special sizing block. Then, the trolley is pulled into the furnace by the traction mechanism for heating. After heating, the trolley is pulled out of the furnace by the traction mechanism for discharging, and then the heated workpiece is lifted to the forging equipment by the crane for processing.
There are some defects in the process operation of Nantong heat treatment with trolley furnace
1. The quenching temperature is too high;
2. The temperature control instrument fails or the indication is not correct;
3. The parts are too close to the trolley furnace electrode or near the resistance wire;
4. There are too many deposits at the bottom of the furnace, and the electrode is inserted into the deposit, so that the temperature at the bottom of the furnace is too high, and the parts are inserted into the deposit to overheat and burn;
5. Decarburization or carburization of parts during heating;
6. The heating time of parts in the trolley furnace is too long;
7. The electrode distribution of trolley furnace is unreasonable, and the furnace temperature is uneven, resulting in local overheating;
8. The quenching temperature is not strictly controlled.
I hope that I can help you with some of the knowledge points above about the heat treatment of the trolley furnace. For more information, please pay attention to the website of the heat treatment company. The company specializes in the production of Nantong heat treatment equipment, the company has rich production experience, as well as advanced production, processing, testing equipment, and adhere to the concept of "quality first, good faith management", and constantly carry out technical innovation, and strive to serve customers with better products.