Bridge crane metallurgical quenching

Hardening metallurgical cranes are used in thermal shops of machine-building plants and are designed to perform lifting and transport operations necessary in the process of hardening works: feeding products into heating furnaces, lifting heated products, immersing products in quenching baths, as well as a number of auxiliary operations for servicing equipment in thermal shops.

A hardening metallurgical crane consists of a bridge of a typical frame structure (main span beams assembled with end beams) and mechanisms characterized by higher speeds compared to general-purpose cranes, and, accordingly, higher installed electric motor powers. High speeds of movement of the load are necessary to minimize the loss of heating temperature of the workpiece, to ensure the uniformity of the structure of the workpiece in terms of volume and are the most important parameters of hardening cranes.

To achieve a consistently high quality of heat treatment, in addition to high speeds, it is necessary to ensure the absence or minimize and quickly extinguish the swaying of the load. When solving the problem of increasing the speeds, designers are faced with the need to quickly damp the oscillations (swinging) of the load with inevitably high inertial forces, which negatively affect the masses of the steel structure of the hardening crane. Therefore, in order to obtain the optimal cost of the machine when ordering and developing cranes of this type from the designers and the customer, first of all, it is required to achieve the optimal combination of these parameters (speeds).

When solving the problem of damping oscillations (swinging) of the load, the automation of drive control processes using special software is of particular importance. As a rule, the transfer of blanks from furnaces to baths is carried out along known trajectories / points, which makes it possible to automate the process of transferring blanks using coordinate points and the use of non-uniformly accelerated speed changes in a special control program, which will significantly reduce the swinging amplitudes of the load and shorten the transfer cycle.

When assembling the crane assemblies, we take into account the technological specifics of the customer's production, as well as the individual requirements reflected in the terms of reference for the crane. In the production of overhead metallurgical hardening crane, we use components from leading manufacturers and trusted suppliers.

At your request, the parameter values can be changed, for this fill out the questionnaire on the overhead metallurgical casting crane.

Contact Guminyuk Grigori for recommendations on the selection of the appropriate parameters of the crane you are interested in +38 050 381-52-70 grigori@gutman.com.ua