Transmission by two sprockets and around the center of the two rounds of flexure - chain formed. By engagement between the chain and sprocket to transmit motion and power between two parallel axes, attributed to the nature of the persecution having an engagement drive. The primary characteristic of the chain drive: no elastic sliding and skidding, lifting chain how much money one meter, to adhere precisely uniform transmission ratio, the higher the transmission power; at low speed under heavy load can better job; get used to harsh environments such as multi- dust, grease, corrosion and high strength applications. But the chain drive also has some drawbacks: the instantaneous chain speed and instantaneous transmission ratio is not constant, the job has an impact and noise, easy to wear jump after the onset of tooth, not a load of great and rapid change in the use of reverse gear. The use of chain drive is: drive power is usually below 100kW power between 0.92 to 0.96, the gear ratio i does not exceed 7, the transmission speed is usually less than 15m / s. In addition to the joints and chain links, each link are not parting. Length of the chain with a chain number of sections that in order to make the chain when connected in a ring, just outside the chain plate and the inner link plates are connected, so the best is an even number of chain links. Common chain heat treatment: annealing, normalizing, quenching, tempering, carburizing, nitriding, Jinan lifting chain, carbonitriding, boronizing. Aging treatment artificial aging, natural aging process. Annealing, lifting chain Caution, the workpiece is heated to 30-50 degrees above Ac3, carburizing lifting chain, holding a certain time, with the furnace cooled to 500 degrees at cooling in space. Normalizing, the steel is heated to above Ac3 or Acm, an operation after removing heat from the furnace in air-cooled. Hardening, the steel is heated to above Ac3 or Ac1, rapid cooling after incubation in water or oil, coolant, has been unstable organization. Tempering the hardened steel reheated to a temperature below Ac1, after cooling to room temperature incubation of the heat treatment process. Natural aging treatment, the workpiece stand at room temperature conditions or prolonged storage of natural aging phenomenon occurs, called natural aging. Artificial aging treatment, the use of the workpiece is heated to a higher temperature and a shorter time for aging treatment aging treatment, called artificial aging. Jinan lifting chain | carburizing lifting chain | Chen of the lifting chain (certified merchants) from Hebei chen sling Manufacturing Limited. Hebei chen sling Manufacturing Co., Ltd. (www.qzhon.com) is specialized in "sling. Sling" of the enterprise, the company adhering to the "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Xu Lu source.