Long Bar Induction Hardening Production Line Empowers

Recently, targeting the industry pain points of low heat treatment accuracy, high energy consumption and poor stability for long shaft and bar forgings of construction machinery, the brand-new long bar induction hardening production line has completed commissioning and official operation. Tailored for the precision heating and quenching hardening processes of construction machinery forgings, the equipment effectively fills the technical gaps in large-scale and intelligent heat treatment for medium and large-sized construction machinery bar forgings, injecting new momentum into the quality upgrading of core engineering parts.

The newly launched steel bar induction hardening production line adopts intermediate-frequency electromagnetic induction heating as the core technology and integrates zoned constant-temperature heating, closed-loop gradient spray quenching and intelligent air-cooling tempering, realizing full-process automatic operation including blank through-heating, uniform quenching and constant-temperature tempering for long-size forgings. Adaptable to carbon steel and alloy steel long bars with specifications of 20-120mm, the production line applies segmented temperature control and dynamic power adjustment to solve the industry bottlenecks of large heating temperature difference and uneven hardened layer depth of long workpieces. It enables denser and more uniform metallographic structures of forgings and greatly improves the tensile strength and fatigue resistance of core parts.

Compared with traditional heat treatment equipment, the steel rod induction quenching production line boasts prominent advantages. Equipped with a PLC intelligent control system, it realizes fully automatic linkage of feeding, heating, quenching, cooling and discharging, eliminating manual intervention and greatly reducing human operation errors. Meanwhile, the instant heating and precise temperature control features of induction heating shorten the heating cycle, reduce oxidation loss, cut energy consumption by more than 30% compared with traditional equipment and greatly lower the defective rate, achieving high-efficiency production and green energy conservation. In addition, the modular and compact design facilitates convenient maintenance and stable operation of core components, supporting 24-hour continuous mass production for enterprises.