This article mainly introduces:

Guatemala hydraulic cylinder,rolling mill cylinder manufacturer,rolling mill cylinder

(Guatemala rolling mill cylinder,produced by Hengyu Hydraulic Cylinder Factory）

rolling mill cylinder are widely used in Guatemala，because of no need for deceleration device，long service life，smooth movement.So our company has designed rolling mill cylinder for customers from Guatemala.

Introduction to rolling mill cylinder:

Improve the service life of the rolling mill cylinder: it is necessary to maintain the normal clearance of the combined surface of the hydraulic components. When manufacturing or repairing the main parts of the rolling mill cylinder (such as the rolling mill cylinder block, piston rod, etc.), the assembly should be carried out in accordance with the tolerance lower limit of the assembly size, which can well reduce the occurrence of cavitation. If cavitation has occurred in the hydraulic components, only metallographic sandpaper polishing technology can be used to remove cavitation pitting and surface carbon deposits, and general fine sandpaper must not be used for polishing After the rolling mill cylinder is repaired, the hydraulic system should run smoothly for a certain period of time so that the hydraulic oil in the hydraulic system can be fully circulated; If necessary, the rolling mill cylinder inlet pipe (or return pipe) can be disassembled. Make the hydraulic oil overflow to achieve the effect of single rolling mill cylinder exhaust.

When the oil pressure of the rolling mill cylinder inlet is too low to reach the specified value, the leakage situation of the relevant oil system should be checked and the leakage should be eliminated; Check the piston and piston rod seal ring for damage, aging, loose and other phenomena; Check whether the hydraulic pump and pressure valve are faulty.

rolling mill cylinder head explanation: low pressure castings, medium and low pressure with HT300 gray iron, medium and high pressure with 35, 45 steel. When the rolling mill cylinder head itself is the guide sleeve of the piston rod, the rolling mill cylinder head is best cast iron. At the same time, brass, bronze or other wear-resistant materials should be fused on the guide surface. If the guide sleeve is pressed into the rolling mill cylinder head, the guide sleeve shall be wear-resistant cast iron, bronze or brass.

rolling mill cylinder and hydraulic station selection: Select the type and structure of the rolling mill cylinder according to the operation requirements of the main engine. According to the external load force borne by the rolling mill cylinder, such as gravity, friction force of the external mechanism, inertia force and working load, determine the load change law of the rolling mill cylinder in each stage of the stroke and the power value that must be provided. Determine the diameter of the piston and piston rod according to the working load of the rolling mill cylinder and the selected oil working pressure. the flow rate of the hydraulic pump is determined according to the movement speed of the rolling mill cylinder, the diameter of the piston and the piston rod.

Answers to some questions about rolling mill cylinder:

How to deal with the surface degreasing process before spraying paint after cylinder assembly, and what degreasing agent is used?
Cylinder painting, generally using the following process (note: the cylinder is best painted, do not spray powder coating, because the powder coating curing temperature is high, will lead to sealing defects and oil leakage) : Pre-degreasing - degreasing - washing - washing - pickling - washing - washing - table adjustment - phosphating - washing - washing - drying - polishing - spray primer - spray paint degreasing agent generally use neutral or weak alkaline degreasing agent, phosphating liquid generally use zinc phosphating liquid.

When does the cylinder rotate?
The piston rod inside the multistage plunger cylinder can be rotated, and it will rotate when it is subjected to tangential force.