Anbao Hydraulic

1, surface hardness Surface hardness is an important aspect to distinguish the quality of the chrome bar. Because the surface hardness of the product is not up to standard, it will directly shorten the service life of the product. So if you want to choose a good chrome bar, you must check its surface hardness. 2, surface roughness The surface roughness of the chrome bar is not good, which will not only affect the service life of the product. In serious cases, it will also affect the plating quality, causing premature flaking or rusting of the plating layer. The chrome bar manufacturer will cause the product to lose its surface. Protective effect. Therefore, the surface roughness is also an aspect of distinguishing the chrome bar. In general, the proper range of the surface roughness of the chrome bar should be between Ra 0.2 and 0.4. 3, surface corrosion test Because the chrome bar has only high corrosion resistance, it can be used in places where oxidation is easy (such as water,

What’s The Difference Between Cold Rolling And Cold Drawing? “Cold rolled steel” refers to the steel rolling process done at or near room temperature. Cold rolling involves the rolling of flat rolled coils and sheet products. It undergoes more processing than the hot rolled steel because more pressure is required to form its shape. It has the added effect of strengthening the material and improving the finished product’s mechanical properties through work hardening. The cold rolling process creates a finished product that has a more precise dimension than a hot rolled product. This is because melting does not take place during the rolling process unlike the hot rolled steel. Cold rolled steel is less malleable than hot rolled steel, making it limited to only a few simple shapes. However, with uniform cross section and small transverse dimension, other cold rolled shapes can be obtained using a series of shaping operations. It is mostly used when a surface with a better finish is requ

Quenched / Tempered Induction Hardened Piston Rod The piston rods are induction hardened with Q&T. After induction hardening with Q&T, the piston rods could not only obtain greater mechanical properties, but also achieve a greater resistance to damage from external impact. Induction hardening with Q&T consists of a two-stage heat treatment process. Stage 1, the piston rods are quenched and high-temperature tempered to adjust the mechanical properties of the steel. Stage 2, the piston rods are induction hardened in order to increase the resistance to damage from external impact in applications where there is risk for them. The induction hardening process creates a very hard, wear resistant surface while maintaining the proper toughness in the majority of the object. Anbao Hydraulic is a professional manufacturer in hydraulic cylinder  and assembly products , we have more than 23 years experience, honed tube , hard chrome bar , hollow chrome bar are also our hot sel

Hydraulic cylinder piston rods are induction hardened in order to increase the resistance to damage from unanticipated external impact in applications where there is risk for such; examples are piston rods for hydraulic cylinders in excavators and loaders and for power-steering cylinders. An additional advantage afforded by induction hardening is improved resistance to inadvertent handling damage during cylinder manufacture. Induction hardening of hydraulic cylinder piston rods engenders not only a protection from damage in the event of external impact but also improves the mechanical properties of the rod and in particular, the resistance to buckling failure in push mode. This increase in buckling resistance can be accounted for by considering the rod as a composite material with a tube of hardened steel surrounding a solid core. Consequently, in relation to a non hardened rod with the same steel base, the diameter of an induction-hardened rod can be downsized leading to a number o

4140 is a 1% Chromium - Molybdenum high tensile steel supplied in the hardened and tempered, cold drawn or turned, precision ground, polished, chrome plated and final polished condition, with a typical base metal tensile strength of 850 - 1000 Mpa, plus a typical hard chrome plated surface hardness of HV 1000 - 1150.Characterised by an extremely smooth surface finish with excellent wear and corrosion resistance, coupled with a base material giving high strength and good impact properties, plus good machinability. 4140 hard chrome plated bar is used extensively by the hydraulic and pneumatic industries, and is employed by other industry sectors for a wide range of applications requiring higher strength. Typical applications are: Agricultural Equipment, Hydraulic Cylinders , Hoists, Jacks and other Lifting equipment, Machine Tools, Mining and Earth Moving Equipment, Pumps, Valves, Waste Disposal Transport and Equipment etc. Anbao Hydraulic is a professional manufacturer in

Different types of hydraulic cylinder Single – Acting Cylinder This type of cylinder is named due to the fluid only having one access point or port into the cylinder. This port is at the head end of the hydraulic cylinder which can only be worked in one direction. As oil it pushed through, the port is pressed on a plunger and causes it to move. When the cylinder is emptied of oil the plunger returns to its original position in line with the failing oil level. The fact that it is a single rather than another type of cylinder could affect the rate at which is can perform. However, this depends on the means for which it may be used and could well not be an issue. Though, if this is an issue you may wish to read about the other options. Double- Acting Cylinder Unlike the single acting cylinder, this type of cylinder has two ports; one for extending the plunger and another for retracting. These ports are position at either end of the cylinder, the head and the rod. This means that t

The required barrel is a key part of hydraulic cylinder , and sometimes the direct acting component of hydraulic cylinder (when piston rod or plunger is fixed); the barrel, end cover and piston (plunger) form a sealed chamber for containing pressure oil and driving the load for acting; thus the barrel has requirements for strength, rigidity and sealing as below:    (1) The barrel should have sufficient strength to prevent permanent deformation under long-term rated operating pressure and short-term dynamic test pressure.    (2) The barrel should have sufficient rigidity to prevent bending caused by lateral force imposed by the piston and reacting force during installation.    (3) Reliable seal: The grade of dimensional tolerance and accuracy of geometric tolerance of cylinder inner surface, piston seal and supporting ring should be designed rationally to ensure reliable seal and reduce wear.    (4) The cylinder barrel to be welded should have good weldability to avoid crackin