Metallurgical field

Product content

expanding-collapsing cylinder

Important components of the hydraulic system of the coiling machine The expansion and contraction cylinder is used to control the expansion and contraction of the rising sleeve of the steel strip coiler. The hydraulic cylinder body rotates at high speed with the expansion sleeve, while the oil supply part - the rotating joint outer sleeve does not rotate. Under high-speed and high-pressure rotating conditions, ensuring the machining accuracy and geometric tolerances of the hydraulic cylinder, the structural design of the rotating joint, material selection and process processing, and machining accuracy are crucial. Avoid locking the rotating joint. General working speed: ≤ 500rpm.

隐藏域元素占位

Roll bending and rolling device for finishing mill

The bending and rolling device of the finishing mill is one of the core components of the finishing mill. Installed on the rolling mill frame, located on both sides of the work roll bearing seat, divided into the transmission side and the operation side, the inlet side and the outlet side. Use hydraulic bending cylinder to apply additional bending force to the work roll, causing additional deflection of the roll and compensating for the original roll crown; Use a hydraulic roller cylinder to change the axial relative position of the upper and lower work rolls, adjust the positive and negative convexity of the roll gap, improve the plate shape, and reduce the lateral thickness difference. Long term exposure to water vapor, multiple oxide scales, and high temperature environments, with severe impact and vibration, and continuous operation under variable load conditions. The structure is complex, with high precision requirements, high processing difficulty, and inconvenient on-site installation and maintenance. It has high requirements for stability and service life.

隐藏域元素占位

AWC hydraulic cylinder

The main executive component in the automatic width control (AWC) system of the vertical roller of the roughing mill. According to the parameters measured by the width gauge and pressure sensor, adjust the width of the vertical roller in a timely and dynamic manner to reduce the width deviation of the rolled piece over the entire length. It is a high-end servo cylinder with dynamic characteristics such as fast response, high speed, and low friction. Produced specifications: 580/320 750, 570/340 750, 450/300 815, 510/310 725, 420/320 660, etc

隐藏域元素占位