A treatment device for drying a laminated strip includes: lower and upper crosspieces extending transversely to and on either side of the metal strip, the upper crosspiece embedding an upper pressure cylinder with supporting rollers, the lower crosspiece embedding a lower pressure cylinder with the supporting rollers, the actuator and guide enabling the crosspieces to pass from a retracted idle position to a close working position, for which the lower and upper pressure cylinders, arranged on either side of the strip, transversely to the direction of travel, are each intended to be pressure-applied on the strip by the supporting rollers distributed along the length of the pressure cylinder, and along at least two rotating axes parallel to the longitudinal axis of the pressure cylinder. A first compartment supports all the supporting rollers. A second compartment supports the pressure cylinder. Each compartment is a removable element of the crosspiece.

Disclosed is an improved automatic hub forging die lubricant cleaning device, comprising a lifting hydraulic cylinder, a limiting block, a hinge A, a hydraulic piston rod, a fixed connecting rod, a hinge shaft, a connecting plate, a hydraulic cylinder, a hinge B and the like. The device has the advantages that the labor efficiency is improved, the production intensity is reduced, and the generality is strong; and corresponding cleaning scrapers can be set according to the surface shapes of different hub dies and only need to be replaced via general bolt connectors, so that the cost of equipment is reduced.

Provided is an endless metal ring manufacturing method for manufacturing an endless metal ring by carrying out a barrel polishing step for polishing the endless metal ring by using a barrel of a resin material, a rolling step for rolling the endless metal ring which was cleaned, and a nitriding step for nitriding the endless metal ring which was rolled, wherein after the barrel polishing step and before the rolling step, provided is a resin removing step for removing resin that has adhered to the endless metal ring.

Provided is an endless metal ring manufacturing method for manufacturing an endless metal ring by carrying out a barrel polishing step for polishing the endless metal ring by using a barrel of a resin material, a rolling step for rolling the endless metal ring which was cleaned, and a nitriding step for nitriding the endless metal ring which was rolled, wherein after the barrel polishing step and before the rolling step, provided is a resin removing step for removing resin that has adhered to the endless metal ring.

A method for arranging jet cleaning nozzles comprising: arranging multiple rows of nozzles in a parallel and uniform manner along a lengthwise direction of a metal plate strip; arranging the nozzles in each row at an equal interval; arraying adjacent rows of nozzles in a staggered manner along the widthwise direction of the metal plate strip so as to form a nozzle matrix; wherein each nozzle is perpendicular to a moving direction of the metal plate strip, and the perpendicular distance of each nozzle to a surface of the metal plate strip is the same. Through the method for arranging jet cleaning nozzles, nozzles can be flexibly controlled based on the change of the geometric relationship between nozzles, in order to implement efficient and continuous descaling on the surfaces of a metal plate strip with different width specifications and different requirements on the descaling speed. In this way, waste of energy and water resources occurred when changing specifications is avoided, and the phenomenon that upper and lower nozzles spray to each other is also avoided, thereby achieving flexible and efficient control over the arrangement mode of jet cleaning nozzles for descaling.

Provided is an apparatus of removing foreign substances from a hot-rolled steel strip, including a reverse direction injection unit provided to inject high-pressure water in the reverse direction of a moving direction of the strip toward the strip moving to the entrance of the winder by the side guide, wherein the reverse direction injection unit includes a plurality of upper reverse direction injection nozzles arranged along a width direction of the strip to inject high-pressure water to an upper surface of the strip, and the plurality of upper reverse direction injection nozzles is arranged such that an interval of the upper reverse direction injection nozzles located in a central area along the above arrangement direction is narrower than an interval of the upper reverse direction injection nozzles located in both edge areas.